зеркало из https://github.com/github/putty.git
3799 строки
127 KiB
C
3799 строки
127 KiB
C
/*
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* Unified font management for GTK.
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*
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* PuTTY is willing to use both old-style X server-side bitmap
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* fonts _and_ GTK2/Pango client-side fonts. This requires us to
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* do a bit of work to wrap the two wildly different APIs into
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* forms the rest of the code can switch between seamlessly, and
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* also requires a custom font selector capable of handling both
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* types of font.
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#if !GTK_CHECK_VERSION(3,0,0)
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#include <gdk/gdkkeysyms.h>
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#endif
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#define MAY_REFER_TO_GTK_IN_HEADERS
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#include "putty.h"
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#include "gtkfont.h"
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#include "gtkcompat.h"
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#include "gtkmisc.h"
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#include "tree234.h"
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#ifndef NOT_X_WINDOWS
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#include <gdk/gdkx.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include "x11misc.h"
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#endif
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/*
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* Future work:
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*
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* - it would be nice to have a display of the current font name,
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* and in particular whether it's client- or server-side,
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* during the progress of the font selector.
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*/
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#if !GLIB_CHECK_VERSION(1,3,7)
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#define g_ascii_strcasecmp g_strcasecmp
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#define g_ascii_strncasecmp g_strncasecmp
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#endif
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/*
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* Ad-hoc vtable mechanism to allow font structures to be
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* polymorphic.
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*
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* Any instance of `unifont' used in the vtable functions will
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* actually be an element of a larger structure containing data
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* specific to the subtype.
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*/
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#define FONTFLAG_CLIENTSIDE 0x0001
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#define FONTFLAG_SERVERSIDE 0x0002
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#define FONTFLAG_SERVERALIAS 0x0004
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#define FONTFLAG_NONMONOSPACED 0x0008
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#define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
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typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
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const char *family, const char *charset,
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const char *style, const char *stylekey,
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int size, int flags,
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const struct UnifontVtable *fontclass);
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struct UnifontVtable {
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/*
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* `Methods' of the `class'.
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*/
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unifont *(*create)(GtkWidget *widget, const char *name, bool wide,
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bool bold, int shadowoffset, bool shadowalways);
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unifont *(*create_fallback)(GtkWidget *widget, int height, bool wide,
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bool bold, int shadowoffset,
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bool shadowalways);
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void (*destroy)(unifont *font);
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bool (*has_glyph)(unifont *font, wchar_t glyph);
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void (*draw_text)(unifont_drawctx *ctx, unifont *font,
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int x, int y, const wchar_t *string, int len,
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bool wide, bool bold, int cellwidth);
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void (*draw_combining)(unifont_drawctx *ctx, unifont *font,
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int x, int y, const wchar_t *string, int len,
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bool wide, bool bold, int cellwidth);
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void (*enum_fonts)(GtkWidget *widget,
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fontsel_add_entry callback, void *callback_ctx);
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char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
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int *flags, bool resolve_aliases);
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char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
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char *(*size_increment)(unifont *font, int increment);
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/*
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* `Static data members' of the `class'.
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*/
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const char *prefix;
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};
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#ifndef NOT_X_WINDOWS
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/* ----------------------------------------------------------------------
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* X11 font implementation, directly using Xlib calls. Conditioned out
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* if X11 fonts aren't available at all (e.g. building with GTK3 for a
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* back end other than X).
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*/
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static bool x11font_has_glyph(unifont *font, wchar_t glyph);
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static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
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int x, int y, const wchar_t *string, int len,
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bool wide, bool bold, int cellwidth);
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static void x11font_draw_combining(unifont_drawctx *ctx, unifont *font,
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int x, int y, const wchar_t *string,
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int len, bool wide, bool bold,
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int cellwidth);
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static unifont *x11font_create(GtkWidget *widget, const char *name,
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bool wide, bool bold,
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int shadowoffset, bool shadowalways);
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static void x11font_destroy(unifont *font);
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static void x11font_enum_fonts(GtkWidget *widget,
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fontsel_add_entry callback, void *callback_ctx);
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static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
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int *size, int *flags,
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bool resolve_aliases);
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static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
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int size);
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static char *x11font_size_increment(unifont *font, int increment);
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#ifdef DRAW_TEXT_CAIRO
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struct cairo_cached_glyph {
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cairo_surface_t *surface;
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unsigned char *bitmap;
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};
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#endif
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/*
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* Structure storing a single physical XFontStruct, plus associated
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* data.
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*/
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typedef struct x11font_individual {
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/* The XFontStruct itself. */
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XFontStruct *xfs;
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/*
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* The `allocated' flag indicates whether we've tried to fetch
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* this subfont already (thus distinguishing xfs==NULL because we
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* haven't tried yet from xfs==NULL because we tried and failed,
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* so that we don't keep trying and failing subsequently).
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*/
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bool allocated;
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#ifdef DRAW_TEXT_CAIRO
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/*
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* A cache of glyph bitmaps downloaded from the X server when
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* we're in Cairo rendering mode. If glyphcache itself is
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* non-NULL, then entries in [0,nglyphs) are expected to be
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* initialised to either NULL or a bitmap pointer.
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*/
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struct cairo_cached_glyph *glyphcache;
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int nglyphs;
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/*
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* X server paraphernalia for actually downloading the glyphs.
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*/
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Pixmap pixmap;
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GC gc;
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int pixwidth, pixheight, pixoriginx, pixoriginy;
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/*
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* Paraphernalia for loading the resulting bitmaps into Cairo.
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*/
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int rowsize, allsize, indexflip;
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#endif
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} x11font_individual;
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struct x11font {
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/*
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* Copy of the X display handle, so we don't have to keep
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* extracting it from GDK.
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*/
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Display *disp;
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/*
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* Individual physical X fonts. We store a number of these, for
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* automatically guessed bold and wide variants.
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*/
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x11font_individual fonts[4];
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/*
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* `sixteen_bit' is true iff the font object is indexed by
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* values larger than a byte. That is, this flag tells us
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* whether we use XDrawString or XDrawString16, etc.
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*/
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bool sixteen_bit;
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/*
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* `variable' is true iff the font is non-fixed-pitch. This
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* enables some code which takes greater care over character
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* positioning during text drawing.
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*/
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bool variable;
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/*
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* real_charset is the charset used when translating text into the
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* font's internal encoding inside draw_text(). This need not be
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* the same as the public_charset provided to the client; for
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* example, public_charset might be CS_ISO8859_1 while
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* real_charset is CS_ISO8859_1_X11.
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*/
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int real_charset;
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/*
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* Data passed in to unifont_create().
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*/
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int shadowoffset;
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bool wide, bold, shadowalways;
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unifont u;
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};
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static const UnifontVtable x11font_vtable = {
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.create = x11font_create,
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.create_fallback = NULL, /* no fallback fonts in X11 */
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.destroy = x11font_destroy,
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.has_glyph = x11font_has_glyph,
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.draw_text = x11font_draw_text,
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.draw_combining = x11font_draw_combining,
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.enum_fonts = x11font_enum_fonts,
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.canonify_fontname = x11font_canonify_fontname,
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.scale_fontname = x11font_scale_fontname,
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.size_increment = x11font_size_increment,
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.prefix = "server",
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};
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#define XLFD_STRING_PARTS_LIST(S,I) \
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S(foundry) \
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S(family_name) \
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S(weight_name) \
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S(slant) \
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S(setwidth_name) \
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S(add_style_name) \
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I(pixel_size) \
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I(point_size) \
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I(resolution_x) \
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I(resolution_y) \
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S(spacing) \
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I(average_width) \
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S(charset_registry) \
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S(charset_encoding) \
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/* end of list */
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/* Special value for int fields that xlfd_recompose will render as "*" */
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#define XLFD_INT_WILDCARD INT_MIN
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struct xlfd_decomposed {
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#define STR_FIELD(f) const char *f;
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#define INT_FIELD(f) int f;
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XLFD_STRING_PARTS_LIST(STR_FIELD, INT_FIELD)
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#undef STR_FIELD
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#undef INT_FIELD
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};
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static struct xlfd_decomposed *xlfd_decompose(const char *xlfd)
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{
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char *p, *components[14];
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struct xlfd_decomposed *dec;
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int i;
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if (!xlfd)
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return NULL;
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dec = snew_plus(struct xlfd_decomposed, strlen(xlfd) + 1);
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p = snew_plus_get_aux(dec);
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strcpy(p, xlfd);
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for (i = 0; i < 14; i++) {
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if (*p != '-') {
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/* Malformed XLFD: not enough '-' */
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sfree(dec);
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return NULL;
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}
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*p++ = '\0';
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components[i] = p;
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p += strcspn(p, "-");
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}
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if (*p) {
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/* Malformed XLFD: too many '-' */
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sfree(dec);
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return NULL;
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}
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i = 0;
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#define STORE_STR(f) dec->f = components[i++];
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#define STORE_INT(f) dec->f = atoi(components[i++]);
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XLFD_STRING_PARTS_LIST(STORE_STR, STORE_INT)
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#undef STORE_STR
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#undef STORE_INT
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return dec;
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}
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static char *xlfd_recompose(const struct xlfd_decomposed *dec)
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{
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#define FMT_STR(f) "-%s"
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#define ARG_STR(f) , dec->f
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#define FMT_INT(f) "%s%.*d"
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#define ARG_INT(f) \
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, dec->f == XLFD_INT_WILDCARD ? "-*" : "-" \
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, dec->f == XLFD_INT_WILDCARD ? 0 : 1 \
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, dec->f == XLFD_INT_WILDCARD ? 0 : dec->f
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return dupprintf(XLFD_STRING_PARTS_LIST(FMT_STR, FMT_INT)
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XLFD_STRING_PARTS_LIST(ARG_STR, ARG_INT));
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#undef FMT_STR
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#undef ARG_STR
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#undef FMT_INT
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#undef ARG_INT
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}
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static char *x11_guess_derived_font_name(Display *disp, XFontStruct *xfs,
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bool bold, bool wide)
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{
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Atom fontprop = XInternAtom(disp, "FONT", False);
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unsigned long ret;
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if (XGetFontProperty(xfs, fontprop, &ret)) {
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char *name = XGetAtomName(disp, (Atom)ret);
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struct xlfd_decomposed *xlfd = xlfd_decompose(name);
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if (!xlfd)
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return NULL;
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if (bold)
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xlfd->weight_name = "bold";
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if (wide) {
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/* Width name obviously may have changed. */
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/* Additional style may now become e.g. `ja' or `ko'. */
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xlfd->setwidth_name = xlfd->add_style_name = "*";
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/* Expect to double the average width. */
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xlfd->average_width *= 2;
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}
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{
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char *ret = xlfd_recompose(xlfd);
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sfree(xlfd);
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return ret;
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}
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}
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return NULL;
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}
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static int x11_font_width(XFontStruct *xfs, bool sixteen_bit)
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{
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if (sixteen_bit) {
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XChar2b space;
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space.byte1 = 0;
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space.byte2 = '0';
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return XTextWidth16(xfs, &space, 1);
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} else {
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return XTextWidth(xfs, "0", 1);
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}
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}
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static const XCharStruct *x11_char_struct(
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XFontStruct *xfs, unsigned char byte1, unsigned char byte2)
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{
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int index;
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/*
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* The man page for XQueryFont is rather confusing about how the
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* per_char array in the XFontStruct is laid out, because it gives
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* formulae for determining the two-byte X character code _from_
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* an index into the per_char array. Going the other way, it's
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* rather simpler:
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*
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* The valid character codes have byte1 between min_byte1 and
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* max_byte1 inclusive, and byte2 between min_char_or_byte2 and
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* max_char_or_byte2 inclusive. This gives a rectangle of size
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* (max_byte2-min_byte1+1) by
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* (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
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* rectangle encoded in the per_char array. Hence, given a
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* character code which is valid in the sense that it falls
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* somewhere in that rectangle, its index in per_char is given by
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* setting
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*
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* x = byte2 - min_char_or_byte2
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* y = byte1 - min_byte1
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* index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
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*
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* If min_byte1 and min_byte2 are both zero, that's a special case
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* which can be treated as if min_byte2 was 1 instead, i.e. the
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* per_char array just runs from min_char_or_byte2 to
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* max_char_or_byte2 inclusive, and byte1 should always be zero.
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*/
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if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
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return NULL;
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if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
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index = byte2 - xfs->min_char_or_byte2;
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} else {
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if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
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return NULL;
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index = ((byte2 - xfs->min_char_or_byte2) +
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((byte1 - xfs->min_byte1) *
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(xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
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}
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if (!xfs->per_char) /* per_char NULL => everything in range exists */
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return &xfs->max_bounds;
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return &xfs->per_char[index];
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}
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static bool x11_font_has_glyph(
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XFontStruct *xfs, unsigned char byte1, unsigned char byte2)
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{
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/*
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* Not to be confused with x11font_has_glyph, which is a method of
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* the x11font 'class' and hence takes a unifont as argument. This
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* is the low-level function which grubs about in an actual
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* XFontStruct to see if a given glyph exists.
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*
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* We must do this ourselves rather than letting Xlib's
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* XTextExtents16 do the job, because XTextExtents will helpfully
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* substitute the font's default_char for any missing glyph and
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* not tell us it did so, which precisely won't help us find out
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* which glyphs _are_ missing.
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*/
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const XCharStruct *xcs = x11_char_struct(xfs, byte1, byte2);
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return xcs && (xcs->ascent + xcs->descent > 0 || xcs->width > 0);
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}
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static unifont *x11font_create(GtkWidget *widget, const char *name,
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bool wide, bool bold,
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int shadowoffset, bool shadowalways)
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{
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struct x11font *xfont;
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XFontStruct *xfs;
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Display *disp;
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Atom charset_registry, charset_encoding, spacing;
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unsigned long registry_ret, encoding_ret, spacing_ret;
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int pubcs, realcs;
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bool sixteen_bit, variable;
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int i;
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if ((disp = get_x11_display()) == NULL)
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return NULL;
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xfs = XLoadQueryFont(disp, name);
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if (!xfs)
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return NULL;
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charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
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charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
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pubcs = realcs = CS_NONE;
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sixteen_bit = false;
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variable = true;
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if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
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XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
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char *reg, *enc;
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reg = XGetAtomName(disp, (Atom)registry_ret);
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enc = XGetAtomName(disp, (Atom)encoding_ret);
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if (reg && enc) {
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char *encoding = dupcat(reg, "-", enc);
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pubcs = realcs = charset_from_xenc(encoding);
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/*
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* iso10646-1 is the only wide font encoding we
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* support. In this case, we expect clients to give us
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* UTF-8, which this module must internally convert
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* into 16-bit Unicode.
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*/
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if (!strcasecmp(encoding, "iso10646-1")) {
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sixteen_bit = true;
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pubcs = realcs = CS_UTF8;
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}
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/*
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* Hack for X line-drawing characters: if the primary font
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* is encoded as ISO-8859-1, and has valid glyphs in the
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* low character positions, it is assumed that those
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* glyphs are the VT100 line-drawing character set.
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*/
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if (pubcs == CS_ISO8859_1) {
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int ch;
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for (ch = 1; ch < 32; ch++)
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if (!x11_font_has_glyph(xfs, 0, ch))
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break;
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if (ch == 32)
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realcs = CS_ISO8859_1_X11;
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}
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sfree(encoding);
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}
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}
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|
|
spacing = XInternAtom(disp, "SPACING", False);
|
|
if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
|
|
char *spc;
|
|
spc = XGetAtomName(disp, (Atom)spacing_ret);
|
|
|
|
if (spc && strchr("CcMm", spc[0]))
|
|
variable = false;
|
|
}
|
|
|
|
xfont = snew(struct x11font);
|
|
xfont->u.vt = &x11font_vtable;
|
|
xfont->u.width = x11_font_width(xfs, sixteen_bit);
|
|
xfont->u.ascent = xfs->ascent;
|
|
xfont->u.descent = xfs->descent;
|
|
xfont->u.height = xfont->u.ascent + xfont->u.descent;
|
|
xfont->u.public_charset = pubcs;
|
|
xfont->u.want_fallback = true;
|
|
xfont->u.strikethrough_y = xfont->u.ascent - (xfont->u.ascent * 3 / 8);
|
|
#ifdef DRAW_TEXT_GDK
|
|
xfont->u.preferred_drawtype = DRAWTYPE_GDK;
|
|
#elif defined DRAW_TEXT_CAIRO
|
|
xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
|
|
#else
|
|
#error No drawtype available at all
|
|
#endif
|
|
xfont->disp = disp;
|
|
xfont->real_charset = realcs;
|
|
xfont->sixteen_bit = sixteen_bit;
|
|
xfont->variable = variable;
|
|
xfont->wide = wide;
|
|
xfont->bold = bold;
|
|
xfont->shadowoffset = shadowoffset;
|
|
xfont->shadowalways = shadowalways;
|
|
|
|
for (i = 0; i < lenof(xfont->fonts); i++) {
|
|
xfont->fonts[i].xfs = NULL;
|
|
xfont->fonts[i].allocated = false;
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
xfont->fonts[i].glyphcache = NULL;
|
|
xfont->fonts[i].nglyphs = 0;
|
|
xfont->fonts[i].pixmap = None;
|
|
xfont->fonts[i].gc = None;
|
|
#endif
|
|
}
|
|
xfont->fonts[0].xfs = xfs;
|
|
xfont->fonts[0].allocated = true;
|
|
|
|
return &xfont->u;
|
|
}
|
|
|
|
static void x11font_destroy(unifont *font)
|
|
{
|
|
struct x11font *xfont = container_of(font, struct x11font, u);
|
|
Display *disp = xfont->disp;
|
|
int i;
|
|
|
|
for (i = 0; i < lenof(xfont->fonts); i++) {
|
|
if (xfont->fonts[i].xfs)
|
|
XFreeFont(disp, xfont->fonts[i].xfs);
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
if (xfont->fonts[i].gc != None)
|
|
XFreeGC(disp, xfont->fonts[i].gc);
|
|
if (xfont->fonts[i].pixmap != None)
|
|
XFreePixmap(disp, xfont->fonts[i].pixmap);
|
|
if (xfont->fonts[i].glyphcache) {
|
|
int j;
|
|
for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
|
|
cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
|
|
sfree(xfont->fonts[i].glyphcache[j].bitmap);
|
|
}
|
|
sfree(xfont->fonts[i].glyphcache);
|
|
}
|
|
#endif
|
|
}
|
|
sfree(xfont);
|
|
}
|
|
|
|
static void x11_alloc_subfont(struct x11font *xfont, int sfid)
|
|
{
|
|
Display *disp = xfont->disp;
|
|
char *derived_name = x11_guess_derived_font_name
|
|
(disp, xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
|
|
xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
|
|
xfont->fonts[sfid].allocated = true;
|
|
sfree(derived_name);
|
|
/* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
|
|
}
|
|
|
|
static bool x11font_has_glyph(unifont *font, wchar_t glyph)
|
|
{
|
|
struct x11font *xfont = container_of(font, struct x11font, u);
|
|
|
|
if (xfont->sixteen_bit) {
|
|
/*
|
|
* This X font has 16-bit character indices, which means
|
|
* we can directly use our Unicode input value.
|
|
*/
|
|
return x11_font_has_glyph(xfont->fonts[0].xfs,
|
|
glyph >> 8, glyph & 0xFF);
|
|
} else {
|
|
/*
|
|
* This X font has 8-bit indices, so we must convert to the
|
|
* appropriate character set.
|
|
*/
|
|
char sbstring[2];
|
|
int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
|
|
sbstring, 2, "", NULL);
|
|
if (sblen == 0 || !sbstring[0])
|
|
return false; /* not even in the charset */
|
|
|
|
return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
|
|
(unsigned char)sbstring[0]);
|
|
}
|
|
}
|
|
|
|
#if !GTK_CHECK_VERSION(2,0,0)
|
|
#define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
|
|
#elif GTK_CHECK_VERSION(3,0,0)
|
|
#define GDK_DRAWABLE_XID(d) GDK_WINDOW_XID(d) /* GTK3's name for this */
|
|
#endif
|
|
|
|
static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
|
|
const void *vstring, int start, int length)
|
|
{
|
|
const XChar2b *string = (const XChar2b *)vstring;
|
|
return XTextWidth16(xfi->xfs, string+start, length);
|
|
}
|
|
|
|
static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
|
|
const void *vstring, int start, int length)
|
|
{
|
|
const char *string = (const char *)vstring;
|
|
return XTextWidth(xfi->xfs, string+start, length);
|
|
}
|
|
|
|
#ifdef DRAW_TEXT_GDK
|
|
static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi,
|
|
Display *disp)
|
|
{
|
|
XSetFont(disp, GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
|
|
}
|
|
|
|
static void x11font_gdk_draw_16(unifont_drawctx *ctx, x11font_individual *xfi,
|
|
Display *disp, int x, int y,
|
|
const void *vstring, int start, int length)
|
|
{
|
|
const XChar2b *string = (const XChar2b *)vstring;
|
|
XDrawString16(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
|
|
GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
|
|
}
|
|
|
|
static void x11font_gdk_draw_8(unifont_drawctx *ctx, x11font_individual *xfi,
|
|
Display *disp, int x, int y,
|
|
const void *vstring, int start, int length)
|
|
{
|
|
const char *string = (const char *)vstring;
|
|
XDrawString(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
|
|
GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
|
|
}
|
|
#endif
|
|
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
static void x11font_cairo_setup(
|
|
unifont_drawctx *ctx, x11font_individual *xfi, Display *disp)
|
|
{
|
|
if (xfi->pixmap == None) {
|
|
XGCValues gcvals;
|
|
GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
|
|
int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
|
|
|
|
xfi->pixwidth =
|
|
xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
|
|
xfi->pixheight =
|
|
xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
|
|
xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
|
|
xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
|
|
|
|
xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
|
|
xfi->pixwidth);
|
|
xfi->allsize = xfi->rowsize * xfi->pixheight;
|
|
|
|
{
|
|
/*
|
|
* Test host endianness and use it to set xfi->indexflip,
|
|
* which is XORed into our left-shift counts in order to
|
|
* implement the CAIRO_FORMAT_A1 specification, in which
|
|
* each bitmap byte is oriented LSB-first on little-endian
|
|
* platforms and MSB-first on big-endian ones.
|
|
*
|
|
* This is the same technique Cairo itself uses to test
|
|
* endianness, so hopefully it'll work in any situation
|
|
* where Cairo is usable at all.
|
|
*/
|
|
static const int endianness_test = 1;
|
|
xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
|
|
}
|
|
|
|
xfi->pixmap = XCreatePixmap
|
|
(disp,
|
|
GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
|
|
xfi->pixwidth, xfi->pixheight, 1);
|
|
gcvals.foreground = WhitePixel(disp, widgetscr);
|
|
gcvals.background = BlackPixel(disp, widgetscr);
|
|
gcvals.font = xfi->xfs->fid;
|
|
xfi->gc = XCreateGC(disp, xfi->pixmap,
|
|
GCForeground | GCBackground | GCFont, &gcvals);
|
|
}
|
|
}
|
|
|
|
static void x11font_cairo_cache_glyph(
|
|
Display *disp, x11font_individual *xfi, int glyphindex)
|
|
{
|
|
XImage *image;
|
|
int x, y;
|
|
unsigned char *bitmap;
|
|
const XCharStruct *xcs = x11_char_struct(xfi->xfs, glyphindex >> 8,
|
|
glyphindex & 0xFF);
|
|
|
|
bitmap = snewn(xfi->allsize, unsigned char);
|
|
memset(bitmap, 0, xfi->allsize);
|
|
|
|
image = XGetImage(disp, xfi->pixmap, 0, 0,
|
|
xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
|
|
for (y = xfi->pixoriginy - xcs->ascent;
|
|
y < xfi->pixoriginy + xcs->descent; y++) {
|
|
for (x = xfi->pixoriginx + xcs->lbearing;
|
|
x < xfi->pixoriginx + xcs->rbearing; x++) {
|
|
unsigned long pixel = XGetPixel(image, x, y);
|
|
if (pixel) {
|
|
int byteindex = y * xfi->rowsize + x/8;
|
|
int bitindex = (x & 7) ^ xfi->indexflip;
|
|
bitmap[byteindex] |= 1U << bitindex;
|
|
}
|
|
}
|
|
}
|
|
XDestroyImage(image);
|
|
|
|
if (xfi->nglyphs <= glyphindex) {
|
|
/* Round up to the next multiple of 256 on the general
|
|
* principle that Unicode characters come in contiguous blocks
|
|
* often used together */
|
|
int old_nglyphs = xfi->nglyphs;
|
|
xfi->nglyphs = (glyphindex + 0x100) & ~0xFF;
|
|
xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
|
|
struct cairo_cached_glyph);
|
|
|
|
while (old_nglyphs < xfi->nglyphs) {
|
|
xfi->glyphcache[old_nglyphs].surface = NULL;
|
|
xfi->glyphcache[old_nglyphs].bitmap = NULL;
|
|
old_nglyphs++;
|
|
}
|
|
}
|
|
xfi->glyphcache[glyphindex].bitmap = bitmap;
|
|
xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
|
|
(bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
|
|
}
|
|
|
|
static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
|
|
x11font_individual *xfi, int x, int y,
|
|
int glyphindex)
|
|
{
|
|
if (xfi->glyphcache[glyphindex].surface) {
|
|
cairo_mask_surface(ctx->u.cairo.cr,
|
|
xfi->glyphcache[glyphindex].surface,
|
|
x - xfi->pixoriginx, y - xfi->pixoriginy);
|
|
}
|
|
}
|
|
|
|
static void x11font_cairo_draw_16(
|
|
unifont_drawctx *ctx, x11font_individual *xfi, Display *disp,
|
|
int x, int y, const void *vstring, int start, int length)
|
|
{
|
|
const XChar2b *string = (const XChar2b *)vstring + start;
|
|
int i;
|
|
for (i = 0; i < length; i++) {
|
|
if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
|
|
int glyphindex = (256 * (unsigned char)string[i].byte1 +
|
|
(unsigned char)string[i].byte2);
|
|
if (glyphindex >= xfi->nglyphs ||
|
|
!xfi->glyphcache[glyphindex].surface) {
|
|
XDrawImageString16(disp, xfi->pixmap, xfi->gc,
|
|
xfi->pixoriginx, xfi->pixoriginy,
|
|
string+i, 1);
|
|
x11font_cairo_cache_glyph(disp, xfi, glyphindex);
|
|
}
|
|
x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
|
|
x += XTextWidth16(xfi->xfs, string+i, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void x11font_cairo_draw_8(
|
|
unifont_drawctx *ctx, x11font_individual *xfi, Display *disp,
|
|
int x, int y, const void *vstring, int start, int length)
|
|
{
|
|
const char *string = (const char *)vstring + start;
|
|
int i;
|
|
for (i = 0; i < length; i++) {
|
|
if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
|
|
int glyphindex = (unsigned char)string[i];
|
|
if (glyphindex >= xfi->nglyphs ||
|
|
!xfi->glyphcache[glyphindex].surface) {
|
|
XDrawImageString(disp, xfi->pixmap, xfi->gc,
|
|
xfi->pixoriginx, xfi->pixoriginy,
|
|
string+i, 1);
|
|
x11font_cairo_cache_glyph(disp, xfi, glyphindex);
|
|
}
|
|
x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
|
|
x += XTextWidth(xfi->xfs, string+i, 1);
|
|
}
|
|
}
|
|
}
|
|
#endif /* DRAW_TEXT_CAIRO */
|
|
|
|
struct x11font_drawfuncs {
|
|
int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
|
|
const void *vstring, int start, int length);
|
|
void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi,
|
|
Display *disp);
|
|
void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, Display *disp,
|
|
int x, int y, const void *vstring, int start, int length);
|
|
};
|
|
|
|
/*
|
|
* This array has two entries per compiled-in drawtype; of each pair,
|
|
* the first is for an 8-bit font and the second for 16-bit.
|
|
*/
|
|
static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
|
|
#ifdef DRAW_TEXT_GDK
|
|
/* gdk, 8-bit */
|
|
{
|
|
x11font_width_8,
|
|
x11font_gdk_setup,
|
|
x11font_gdk_draw_8,
|
|
},
|
|
/* gdk, 16-bit */
|
|
{
|
|
x11font_width_16,
|
|
x11font_gdk_setup,
|
|
x11font_gdk_draw_16,
|
|
},
|
|
#endif
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
/* cairo, 8-bit */
|
|
{
|
|
x11font_width_8,
|
|
x11font_cairo_setup,
|
|
x11font_cairo_draw_8,
|
|
},
|
|
/* [3] cairo, 16-bit */
|
|
{
|
|
x11font_width_16,
|
|
x11font_cairo_setup,
|
|
x11font_cairo_draw_16,
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static void x11font_really_draw_text(
|
|
const struct x11font_drawfuncs *dfns, unifont_drawctx *ctx,
|
|
x11font_individual *xfi, Display *disp,
|
|
int x, int y, const void *string, int nchars,
|
|
int shadowoffset, bool fontvariable, int cellwidth)
|
|
{
|
|
int start = 0, step, nsteps;
|
|
bool centre;
|
|
|
|
if (fontvariable) {
|
|
/*
|
|
* In a variable-pitch font, we draw one character at a
|
|
* time, and centre it in the character cell.
|
|
*/
|
|
step = 1;
|
|
nsteps = nchars;
|
|
centre = true;
|
|
} else {
|
|
/*
|
|
* In a fixed-pitch font, we can draw the whole lot in one go.
|
|
*/
|
|
step = nchars;
|
|
nsteps = 1;
|
|
centre = false;
|
|
}
|
|
|
|
dfns->setup(ctx, xfi, disp);
|
|
|
|
while (nsteps-- > 0) {
|
|
int X = x;
|
|
if (centre)
|
|
X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
|
|
|
|
dfns->draw(ctx, xfi, disp, X, y, string, start, step);
|
|
if (shadowoffset)
|
|
dfns->draw(ctx, xfi, disp, X + shadowoffset, y,
|
|
string, start, step);
|
|
|
|
x += cellwidth;
|
|
start += step;
|
|
}
|
|
}
|
|
|
|
static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth)
|
|
{
|
|
struct x11font *xfont = container_of(font, struct x11font, u);
|
|
int sfid;
|
|
int shadowoffset = 0;
|
|
int mult = (wide ? 2 : 1);
|
|
int index = 2 * (int)ctx->type;
|
|
|
|
wide = wide && !xfont->wide;
|
|
bold = bold && !xfont->bold;
|
|
|
|
/*
|
|
* Decide which subfont we're using, and whether we have to
|
|
* use shadow bold.
|
|
*/
|
|
if (xfont->shadowalways && bold) {
|
|
shadowoffset = xfont->shadowoffset;
|
|
bold = false;
|
|
}
|
|
sfid = 2 * wide + bold;
|
|
if (!xfont->fonts[sfid].allocated)
|
|
x11_alloc_subfont(xfont, sfid);
|
|
if (bold && !xfont->fonts[sfid].xfs) {
|
|
bold = false;
|
|
shadowoffset = xfont->shadowoffset;
|
|
sfid = 2 * wide + bold;
|
|
if (!xfont->fonts[sfid].allocated)
|
|
x11_alloc_subfont(xfont, sfid);
|
|
}
|
|
|
|
if (!xfont->fonts[sfid].xfs)
|
|
return; /* we've tried our best, but no luck */
|
|
|
|
if (xfont->sixteen_bit) {
|
|
/*
|
|
* This X font has 16-bit character indices, which means
|
|
* we can directly use our Unicode input string.
|
|
*/
|
|
XChar2b *xcs;
|
|
int i;
|
|
|
|
xcs = snewn(len, XChar2b);
|
|
for (i = 0; i < len; i++) {
|
|
xcs[i].byte1 = string[i] >> 8;
|
|
xcs[i].byte2 = string[i];
|
|
}
|
|
|
|
x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
|
|
&xfont->fonts[sfid], xfont->disp, x, y,
|
|
xcs, len, shadowoffset,
|
|
xfont->variable, cellwidth * mult);
|
|
sfree(xcs);
|
|
} else {
|
|
/*
|
|
* This X font has 8-bit indices, so we must convert to the
|
|
* appropriate character set.
|
|
*/
|
|
char *sbstring = snewn(len+1, char);
|
|
int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
|
|
sbstring, len+1, ".", NULL);
|
|
x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
|
|
&xfont->fonts[sfid], xfont->disp, x, y,
|
|
sbstring, sblen, shadowoffset,
|
|
xfont->variable, cellwidth * mult);
|
|
sfree(sbstring);
|
|
}
|
|
}
|
|
|
|
static void x11font_draw_combining(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string,
|
|
int len, bool wide, bool bold,
|
|
int cellwidth)
|
|
{
|
|
/*
|
|
* For server-side fonts, there's no sophisticated system for
|
|
* combining characters intelligently, so the best we can do is to
|
|
* overprint them on each other in the obvious way.
|
|
*/
|
|
int i;
|
|
for (i = 0; i < len; i++)
|
|
x11font_draw_text(ctx, font, x, y, string+i, 1, wide, bold, cellwidth);
|
|
}
|
|
|
|
static void x11font_enum_fonts(GtkWidget *widget,
|
|
fontsel_add_entry callback, void *callback_ctx)
|
|
{
|
|
Display *disp;
|
|
char **fontnames;
|
|
char *tmp = NULL;
|
|
int nnames, i, max, tmpsize;
|
|
|
|
if ((disp = get_x11_display()) == NULL)
|
|
return;
|
|
|
|
max = 32768;
|
|
while (1) {
|
|
fontnames = XListFonts(disp, "*", max, &nnames);
|
|
if (nnames >= max) {
|
|
XFreeFontNames(fontnames);
|
|
max *= 2;
|
|
} else
|
|
break;
|
|
}
|
|
|
|
tmpsize = 0;
|
|
|
|
for (i = 0; i < nnames; i++) {
|
|
struct xlfd_decomposed *xlfd = xlfd_decompose(fontnames[i]);
|
|
if (xlfd) {
|
|
char *p, *font, *style, *stylekey, *charset;
|
|
int weightkey, slantkey, setwidthkey;
|
|
int thistmpsize;
|
|
|
|
/*
|
|
* Convert a dismembered XLFD into the format we'll be
|
|
* using in the font selector.
|
|
*/
|
|
|
|
thistmpsize = 4 * strlen(fontnames[i]) + 256;
|
|
if (tmpsize < thistmpsize) {
|
|
tmpsize = thistmpsize;
|
|
tmp = sresize(tmp, tmpsize, char);
|
|
}
|
|
p = tmp;
|
|
|
|
/*
|
|
* Font name is in the form "family (foundry)". (This is
|
|
* what the GTK 1.2 X font selector does, and it seems to
|
|
* come out looking reasonably sensible.)
|
|
*/
|
|
font = p;
|
|
p += 1 + sprintf(p, "%s (%s)", xlfd->family_name, xlfd->foundry);
|
|
|
|
/*
|
|
* Character set.
|
|
*/
|
|
charset = p;
|
|
p += 1 + sprintf(p, "%s-%s", xlfd->charset_registry,
|
|
xlfd->charset_encoding);
|
|
|
|
/*
|
|
* Style is a mixture of quite a lot of the fields,
|
|
* with some strange formatting.
|
|
*/
|
|
style = p;
|
|
p += sprintf(p, "%s", xlfd->weight_name[0] ? xlfd->weight_name :
|
|
"regular");
|
|
if (!g_ascii_strcasecmp(xlfd->slant, "i"))
|
|
p += sprintf(p, " italic");
|
|
else if (!g_ascii_strcasecmp(xlfd->slant, "o"))
|
|
p += sprintf(p, " oblique");
|
|
else if (!g_ascii_strcasecmp(xlfd->slant, "ri"))
|
|
p += sprintf(p, " reverse italic");
|
|
else if (!g_ascii_strcasecmp(xlfd->slant, "ro"))
|
|
p += sprintf(p, " reverse oblique");
|
|
else if (!g_ascii_strcasecmp(xlfd->slant, "ot"))
|
|
p += sprintf(p, " other-slant");
|
|
if (xlfd->setwidth_name[0] &&
|
|
g_ascii_strcasecmp(xlfd->setwidth_name, "normal"))
|
|
p += sprintf(p, " %s", xlfd->setwidth_name);
|
|
if (!g_ascii_strcasecmp(xlfd->spacing, "m"))
|
|
p += sprintf(p, " [M]");
|
|
if (!g_ascii_strcasecmp(xlfd->spacing, "c"))
|
|
p += sprintf(p, " [C]");
|
|
if (xlfd->add_style_name[0])
|
|
p += sprintf(p, " %s", xlfd->add_style_name);
|
|
|
|
/*
|
|
* Style key is the same stuff as above, but with a
|
|
* couple of transformations done on it to make it
|
|
* sort more sensibly.
|
|
*/
|
|
p++;
|
|
stylekey = p;
|
|
if (!g_ascii_strcasecmp(xlfd->weight_name, "medium") ||
|
|
!g_ascii_strcasecmp(xlfd->weight_name, "regular") ||
|
|
!g_ascii_strcasecmp(xlfd->weight_name, "normal") ||
|
|
!g_ascii_strcasecmp(xlfd->weight_name, "book"))
|
|
weightkey = 0;
|
|
else if (!g_ascii_strncasecmp(xlfd->weight_name, "demi", 4) ||
|
|
!g_ascii_strncasecmp(xlfd->weight_name, "semi", 4))
|
|
weightkey = 1;
|
|
else
|
|
weightkey = 2;
|
|
if (!g_ascii_strcasecmp(xlfd->slant, "r"))
|
|
slantkey = 0;
|
|
else if (!g_ascii_strncasecmp(xlfd->slant, "r", 1))
|
|
slantkey = 2;
|
|
else
|
|
slantkey = 1;
|
|
if (!g_ascii_strcasecmp(xlfd->setwidth_name, "normal"))
|
|
setwidthkey = 0;
|
|
else
|
|
setwidthkey = 1;
|
|
|
|
p += sprintf(
|
|
p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
|
|
weightkey, (int)strlen(xlfd->weight_name), xlfd->weight_name,
|
|
slantkey, (int)strlen(xlfd->slant), xlfd->slant,
|
|
setwidthkey,
|
|
(int)strlen(xlfd->setwidth_name), xlfd->setwidth_name,
|
|
(int)strlen(xlfd->spacing), xlfd->spacing,
|
|
(int)strlen(xlfd->add_style_name), xlfd->add_style_name);
|
|
|
|
assert(p - tmp < thistmpsize);
|
|
|
|
/*
|
|
* Flags: we need to know whether this is a monospaced
|
|
* font, which we do by examining the spacing field
|
|
* again.
|
|
*/
|
|
int flags = FONTFLAG_SERVERSIDE;
|
|
if (!strchr("CcMm", xlfd->spacing[0]))
|
|
flags |= FONTFLAG_NONMONOSPACED;
|
|
|
|
/*
|
|
* Some fonts have a pixel size of zero, meaning they're
|
|
* treated as scalable. For these purposes, we only want
|
|
* fonts whose pixel size we actually know, so filter
|
|
* those out.
|
|
*/
|
|
if (xlfd->pixel_size)
|
|
callback(callback_ctx, fontnames[i], font, charset,
|
|
style, stylekey, xlfd->pixel_size, flags,
|
|
&x11font_vtable);
|
|
|
|
sfree(xlfd);
|
|
} else {
|
|
/*
|
|
* This isn't an XLFD, so it must be an alias.
|
|
* Transmit it with mostly null data.
|
|
*
|
|
* It would be nice to work out if it's monospaced
|
|
* here, but at the moment I can't see that being
|
|
* anything but computationally hideous. Ah well.
|
|
*/
|
|
callback(callback_ctx, fontnames[i], fontnames[i], NULL,
|
|
NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
|
|
|
|
sfree(xlfd);
|
|
}
|
|
}
|
|
XFreeFontNames(fontnames);
|
|
sfree(tmp);
|
|
}
|
|
|
|
static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
|
|
int *size, int *flags,
|
|
bool resolve_aliases)
|
|
{
|
|
/*
|
|
* When given an X11 font name to try to make sense of for a
|
|
* font selector, we must attempt to load it (to see if it
|
|
* exists), and then canonify it by extracting its FONT
|
|
* property, which should give its full XLFD even if what we
|
|
* originally had was a wildcard.
|
|
*
|
|
* However, we must carefully avoid canonifying font
|
|
* _aliases_, unless specifically asked to, because the font
|
|
* selector treats them as worthwhile in their own right.
|
|
*/
|
|
XFontStruct *xfs;
|
|
Display *disp;
|
|
Atom fontprop, fontprop2;
|
|
unsigned long ret;
|
|
|
|
if ((disp = get_x11_display()) == NULL)
|
|
return NULL;
|
|
|
|
xfs = XLoadQueryFont(disp, name);
|
|
|
|
if (!xfs)
|
|
return NULL; /* didn't make sense to us, sorry */
|
|
|
|
fontprop = XInternAtom(disp, "FONT", False);
|
|
|
|
if (XGetFontProperty(xfs, fontprop, &ret)) {
|
|
char *newname = XGetAtomName(disp, (Atom)ret);
|
|
if (newname) {
|
|
unsigned long fsize = 12;
|
|
|
|
fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
|
|
if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
|
|
*size = fsize;
|
|
XFreeFont(disp, xfs);
|
|
if (flags) {
|
|
if (name[0] == '-' || resolve_aliases)
|
|
*flags = FONTFLAG_SERVERSIDE;
|
|
else
|
|
*flags = FONTFLAG_SERVERALIAS;
|
|
}
|
|
return dupstr(name[0] == '-' || resolve_aliases ?
|
|
newname : name);
|
|
}
|
|
}
|
|
}
|
|
|
|
XFreeFont(disp, xfs);
|
|
|
|
return NULL; /* something went wrong */
|
|
}
|
|
|
|
static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
|
|
int size)
|
|
{
|
|
return NULL; /* shan't */
|
|
}
|
|
|
|
static char *x11font_size_increment(unifont *font, int increment)
|
|
{
|
|
struct x11font *xfont = container_of(font, struct x11font, u);
|
|
Display *disp = xfont->disp;
|
|
Atom fontprop = XInternAtom(disp, "FONT", False);
|
|
char *returned_name = NULL;
|
|
unsigned long ret;
|
|
if (XGetFontProperty(xfont->fonts[0].xfs, fontprop, &ret)) {
|
|
struct xlfd_decomposed *xlfd;
|
|
struct xlfd_decomposed *xlfd_best;
|
|
char *wc;
|
|
char **fontnames;
|
|
int nnames, i, max;
|
|
|
|
xlfd = xlfd_decompose(XGetAtomName(disp, (Atom)ret));
|
|
if (!xlfd)
|
|
return NULL;
|
|
|
|
/*
|
|
* Form a wildcard consisting of everything in the
|
|
* original XLFD except for the size-related fields.
|
|
*/
|
|
{
|
|
struct xlfd_decomposed xlfd_wc = *xlfd; /* structure copy */
|
|
xlfd_wc.pixel_size = XLFD_INT_WILDCARD;
|
|
xlfd_wc.point_size = XLFD_INT_WILDCARD;
|
|
xlfd_wc.average_width = XLFD_INT_WILDCARD;
|
|
wc = xlfd_recompose(&xlfd_wc);
|
|
}
|
|
|
|
/*
|
|
* Fetch all the font names matching that wildcard.
|
|
*/
|
|
max = 32768;
|
|
while (1) {
|
|
fontnames = XListFonts(disp, wc, max, &nnames);
|
|
if (nnames >= max) {
|
|
XFreeFontNames(fontnames);
|
|
max *= 2;
|
|
} else
|
|
break;
|
|
}
|
|
|
|
sfree(wc);
|
|
|
|
/*
|
|
* Iterate over those to find the one closest in size to the
|
|
* original font, in the correct direction.
|
|
*/
|
|
|
|
#define FLIPPED_SIZE(xlfd) \
|
|
(((xlfd)->pixel_size + (xlfd)->point_size) * \
|
|
(increment < 0 ? -1 : +1))
|
|
|
|
xlfd_best = NULL;
|
|
for (i = 0; i < nnames; i++) {
|
|
struct xlfd_decomposed *xlfd2 = xlfd_decompose(fontnames[i]);
|
|
if (!xlfd2)
|
|
continue;
|
|
|
|
if (xlfd2->pixel_size != 0 &&
|
|
FLIPPED_SIZE(xlfd2) > FLIPPED_SIZE(xlfd) &&
|
|
(!xlfd_best || FLIPPED_SIZE(xlfd2)<FLIPPED_SIZE(xlfd_best))) {
|
|
sfree(xlfd_best);
|
|
xlfd_best = xlfd2;
|
|
xlfd2 = NULL;
|
|
}
|
|
|
|
sfree(xlfd2);
|
|
}
|
|
|
|
#undef FLIPPED_SIZE
|
|
|
|
if (xlfd_best) {
|
|
char *bare_returned_name = xlfd_recompose(xlfd_best);
|
|
returned_name = dupcat(
|
|
xfont->u.vt->prefix, ":", bare_returned_name);
|
|
sfree(bare_returned_name);
|
|
}
|
|
|
|
XFreeFontNames(fontnames);
|
|
sfree(xlfd);
|
|
sfree(xlfd_best);
|
|
}
|
|
return returned_name;
|
|
}
|
|
|
|
#endif /* NOT_X_WINDOWS */
|
|
|
|
#if GTK_CHECK_VERSION(2,0,0)
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* Pango font implementation (for GTK 2 only).
|
|
*/
|
|
|
|
#if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
|
|
#define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
|
|
#endif
|
|
|
|
static bool pangofont_has_glyph(unifont *font, wchar_t glyph);
|
|
static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth);
|
|
static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string,
|
|
int len, bool wide, bool bold,
|
|
int cellwidth);
|
|
static unifont *pangofont_create(GtkWidget *widget, const char *name,
|
|
bool wide, bool bold,
|
|
int shadowoffset, bool shadowalways);
|
|
static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
|
|
bool wide, bool bold,
|
|
int shadowoffset, bool shadowalways);
|
|
static void pangofont_destroy(unifont *font);
|
|
static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
|
|
void *callback_ctx);
|
|
static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
|
|
int *size, int *flags,
|
|
bool resolve_aliases);
|
|
static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
|
|
int size);
|
|
static char *pangofont_size_increment(unifont *font, int increment);
|
|
|
|
struct pangofont {
|
|
/*
|
|
* Pango objects.
|
|
*/
|
|
PangoFontDescription *desc;
|
|
PangoFontset *fset;
|
|
/*
|
|
* The containing widget.
|
|
*/
|
|
GtkWidget *widget;
|
|
/*
|
|
* Data passed in to unifont_create().
|
|
*/
|
|
int shadowoffset;
|
|
bool bold, shadowalways;
|
|
/*
|
|
* Cache of character widths, indexed by Unicode code point. In
|
|
* pixels; -1 means we haven't asked Pango about this character
|
|
* before.
|
|
*/
|
|
int *widthcache;
|
|
unsigned nwidthcache;
|
|
|
|
struct unifont u;
|
|
};
|
|
|
|
static const UnifontVtable pangofont_vtable = {
|
|
.create = pangofont_create,
|
|
.create_fallback = pangofont_create_fallback,
|
|
.destroy = pangofont_destroy,
|
|
.has_glyph = pangofont_has_glyph,
|
|
.draw_text = pangofont_draw_text,
|
|
.draw_combining = pangofont_draw_combining,
|
|
.enum_fonts = pangofont_enum_fonts,
|
|
.canonify_fontname = pangofont_canonify_fontname,
|
|
.scale_fontname = pangofont_scale_fontname,
|
|
.size_increment = pangofont_size_increment,
|
|
.prefix = "client",
|
|
};
|
|
|
|
/*
|
|
* This function is used to rigorously validate a
|
|
* PangoFontDescription. Later versions of Pango have a nasty
|
|
* habit of accepting _any_ old string as input to
|
|
* pango_font_description_from_string and returning a font
|
|
* description which can actually be used to display text, even if
|
|
* they have to do it by falling back to their most default font.
|
|
* This is doubtless helpful in some situations, but not here,
|
|
* because we need to know if a Pango font string actually _makes
|
|
* sense_ in order to fall back to treating it as an X font name
|
|
* if it doesn't. So we check that the font family is actually one
|
|
* supported by Pango.
|
|
*/
|
|
static bool pangofont_check_desc_makes_sense(PangoContext *ctx,
|
|
PangoFontDescription *desc)
|
|
{
|
|
#ifndef PANGO_PRE_1POINT6
|
|
PangoFontMap *map;
|
|
#endif
|
|
PangoFontFamily **families;
|
|
int i, nfamilies;
|
|
bool matched;
|
|
|
|
/*
|
|
* Ask Pango for a list of font families, and iterate through
|
|
* them to see if one of them matches the family in the
|
|
* PangoFontDescription.
|
|
*/
|
|
#ifndef PANGO_PRE_1POINT6
|
|
map = pango_context_get_font_map(ctx);
|
|
if (!map)
|
|
return false;
|
|
pango_font_map_list_families(map, &families, &nfamilies);
|
|
#else
|
|
pango_context_list_families(ctx, &families, &nfamilies);
|
|
#endif
|
|
|
|
matched = false;
|
|
for (i = 0; i < nfamilies; i++) {
|
|
if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
|
|
pango_font_description_get_family(desc))) {
|
|
matched = true;
|
|
break;
|
|
}
|
|
}
|
|
g_free(families);
|
|
|
|
return matched;
|
|
}
|
|
|
|
static unifont *pangofont_create_internal(GtkWidget *widget,
|
|
PangoContext *ctx,
|
|
PangoFontDescription *desc,
|
|
bool wide, bool bold,
|
|
int shadowoffset, bool shadowalways)
|
|
{
|
|
struct pangofont *pfont;
|
|
#ifndef PANGO_PRE_1POINT6
|
|
PangoFontMap *map;
|
|
#endif
|
|
PangoFontset *fset;
|
|
PangoFontMetrics *metrics;
|
|
|
|
#ifndef PANGO_PRE_1POINT6
|
|
map = pango_context_get_font_map(ctx);
|
|
if (!map) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
fset = pango_font_map_load_fontset(map, ctx, desc,
|
|
pango_context_get_language(ctx));
|
|
#else
|
|
fset = pango_context_load_fontset(ctx, desc,
|
|
pango_context_get_language(ctx));
|
|
#endif
|
|
if (!fset) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
metrics = pango_fontset_get_metrics(fset);
|
|
if (!metrics ||
|
|
pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
|
|
pango_font_description_free(desc);
|
|
g_object_unref(fset);
|
|
return NULL;
|
|
}
|
|
|
|
pfont = snew(struct pangofont);
|
|
pfont->u.vt = &pangofont_vtable;
|
|
pfont->u.width =
|
|
PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
|
|
pfont->u.ascent =
|
|
PANGO_PIXELS_CEIL(pango_font_metrics_get_ascent(metrics));
|
|
pfont->u.descent =
|
|
PANGO_PIXELS_CEIL(pango_font_metrics_get_descent(metrics));
|
|
pfont->u.height = pfont->u.ascent + pfont->u.descent;
|
|
pfont->u.strikethrough_y =
|
|
PANGO_PIXELS(pango_font_metrics_get_ascent(metrics) -
|
|
pango_font_metrics_get_strikethrough_position(metrics));
|
|
pfont->u.want_fallback = false;
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
|
|
#elif defined DRAW_TEXT_GDK
|
|
pfont->u.preferred_drawtype = DRAWTYPE_GDK;
|
|
#else
|
|
#error No drawtype available at all
|
|
#endif
|
|
/* The Pango API is hardwired to UTF-8 */
|
|
pfont->u.public_charset = CS_UTF8;
|
|
pfont->desc = desc;
|
|
pfont->fset = fset;
|
|
pfont->widget = widget;
|
|
pfont->bold = bold;
|
|
pfont->shadowoffset = shadowoffset;
|
|
pfont->shadowalways = shadowalways;
|
|
pfont->widthcache = NULL;
|
|
pfont->nwidthcache = 0;
|
|
|
|
pango_font_metrics_unref(metrics);
|
|
|
|
return &pfont->u;
|
|
}
|
|
|
|
static unifont *pangofont_create(GtkWidget *widget, const char *name,
|
|
bool wide, bool bold,
|
|
int shadowoffset, bool shadowalways)
|
|
{
|
|
PangoContext *ctx;
|
|
PangoFontDescription *desc;
|
|
|
|
desc = pango_font_description_from_string(name);
|
|
if (!desc)
|
|
return NULL;
|
|
ctx = gtk_widget_get_pango_context(widget);
|
|
if (!ctx) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
if (!pangofont_check_desc_makes_sense(ctx, desc)) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
return pangofont_create_internal(widget, ctx, desc, wide, bold,
|
|
shadowoffset, shadowalways);
|
|
}
|
|
|
|
static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
|
|
bool wide, bool bold,
|
|
int shadowoffset, bool shadowalways)
|
|
{
|
|
PangoContext *ctx;
|
|
PangoFontDescription *desc;
|
|
|
|
desc = pango_font_description_from_string("Monospace");
|
|
if (!desc)
|
|
return NULL;
|
|
ctx = gtk_widget_get_pango_context(widget);
|
|
if (!ctx) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
|
|
return pangofont_create_internal(widget, ctx, desc, wide, bold,
|
|
shadowoffset, shadowalways);
|
|
}
|
|
|
|
static void pangofont_destroy(unifont *font)
|
|
{
|
|
struct pangofont *pfont = container_of(font, struct pangofont, u);
|
|
pango_font_description_free(pfont->desc);
|
|
sfree(pfont->widthcache);
|
|
g_object_unref(pfont->fset);
|
|
sfree(pfont);
|
|
}
|
|
|
|
static int pangofont_char_width(PangoLayout *layout, struct pangofont *pfont,
|
|
wchar_t uchr, const char *utfchr, int utflen)
|
|
{
|
|
/*
|
|
* Here we check whether a character has the same width as the
|
|
* character cell it'll be drawn in. Because profiling showed that
|
|
* asking Pango for text sizes was a huge bottleneck when we were
|
|
* calling it every time we needed to know this, we instead call
|
|
* it only on characters we don't already know about, and cache
|
|
* the results.
|
|
*/
|
|
|
|
if ((unsigned)uchr >= pfont->nwidthcache) {
|
|
unsigned newsize = ((int)uchr + 0x100) & ~0xFF;
|
|
pfont->widthcache = sresize(pfont->widthcache, newsize, int);
|
|
while (pfont->nwidthcache < newsize)
|
|
pfont->widthcache[pfont->nwidthcache++] = -1;
|
|
}
|
|
|
|
if (pfont->widthcache[uchr] < 0) {
|
|
PangoRectangle rect;
|
|
pango_layout_set_text(layout, utfchr, utflen);
|
|
pango_layout_get_extents(layout, NULL, &rect);
|
|
pfont->widthcache[uchr] = rect.width;
|
|
}
|
|
|
|
return pfont->widthcache[uchr];
|
|
}
|
|
|
|
static bool pangofont_has_glyph(unifont *font, wchar_t glyph)
|
|
{
|
|
/* Pango implements font fallback, so assume it has everything */
|
|
return true;
|
|
}
|
|
|
|
#ifdef DRAW_TEXT_GDK
|
|
static void pango_gdk_draw_layout(unifont_drawctx *ctx,
|
|
gint x, gint y, PangoLayout *layout)
|
|
{
|
|
gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
|
|
}
|
|
#endif
|
|
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
static void pango_cairo_draw_layout(unifont_drawctx *ctx,
|
|
gint x, gint y, PangoLayout *layout)
|
|
{
|
|
cairo_move_to(ctx->u.cairo.cr, x, y);
|
|
pango_cairo_show_layout(ctx->u.cairo.cr, layout);
|
|
}
|
|
#endif
|
|
|
|
static void pangofont_draw_internal(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string,
|
|
int len, bool wide, bool bold,
|
|
int cellwidth, bool combining)
|
|
{
|
|
struct pangofont *pfont = container_of(font, struct pangofont, u);
|
|
PangoLayout *layout;
|
|
PangoRectangle rect;
|
|
char *utfstring, *utfptr;
|
|
int utflen;
|
|
bool shadowbold = false;
|
|
void (*draw_layout)(unifont_drawctx *ctx,
|
|
gint x, gint y, PangoLayout *layout) = NULL;
|
|
|
|
#ifdef DRAW_TEXT_GDK
|
|
if (ctx->type == DRAWTYPE_GDK) {
|
|
draw_layout = pango_gdk_draw_layout;
|
|
}
|
|
#endif
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
if (ctx->type == DRAWTYPE_CAIRO) {
|
|
draw_layout = pango_cairo_draw_layout;
|
|
}
|
|
#endif
|
|
assert(draw_layout);
|
|
|
|
if (wide)
|
|
cellwidth *= 2;
|
|
|
|
y -= pfont->u.ascent;
|
|
|
|
layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
|
|
pango_layout_set_font_description(layout, pfont->desc);
|
|
if (bold && !pfont->bold) {
|
|
if (pfont->shadowalways)
|
|
shadowbold = true;
|
|
else {
|
|
PangoFontDescription *desc2 =
|
|
pango_font_description_copy_static(pfont->desc);
|
|
pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
|
|
pango_layout_set_font_description(layout, desc2);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Pango always expects UTF-8, so convert the input wide character
|
|
* string to UTF-8.
|
|
*/
|
|
utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
|
|
utflen = wc_to_mb(CS_UTF8, 0, string, len,
|
|
utfstring, len*6+1, ".", NULL);
|
|
|
|
utfptr = utfstring;
|
|
while (utflen > 0) {
|
|
int clen, n;
|
|
int desired = cellwidth * PANGO_SCALE;
|
|
|
|
/*
|
|
* We want to display every character from this string in
|
|
* the centre of its own character cell. In the worst case,
|
|
* this requires a separate text-drawing call for each
|
|
* character; but in the common case where the font is
|
|
* properly fixed-width, we can draw many characters in one
|
|
* go which is much faster.
|
|
*
|
|
* This still isn't really ideal. If you look at what
|
|
* happens in the X protocol as a result of all of this, you
|
|
* find - naturally enough - that each call to
|
|
* gdk_draw_layout() generates a separate set of X RENDER
|
|
* operations involving creating a picture, setting a clip
|
|
* rectangle, doing some drawing and undoing the whole lot.
|
|
* In an ideal world, we should _always_ be able to turn the
|
|
* contents of this loop into a single RenderCompositeGlyphs
|
|
* operation which internally specifies inter-character
|
|
* deltas to get the spacing right, which would give us full
|
|
* speed _even_ in the worst case of a non-fixed-width font.
|
|
* However, Pango's architecture and documentation are so
|
|
* unhelpful that I have no idea how if at all to persuade
|
|
* them to do that.
|
|
*/
|
|
|
|
if (combining) {
|
|
/*
|
|
* For a character with combining stuff, we just dump the
|
|
* whole lot in one go, and expect it to take up just one
|
|
* character cell.
|
|
*/
|
|
clen = utflen;
|
|
n = 1;
|
|
} else {
|
|
/*
|
|
* Start by extracting a single UTF-8 character from the
|
|
* string.
|
|
*/
|
|
clen = 1;
|
|
while (clen < utflen &&
|
|
(unsigned char)utfptr[clen] >= 0x80 &&
|
|
(unsigned char)utfptr[clen] < 0xC0)
|
|
clen++;
|
|
n = 1;
|
|
|
|
if (is_rtl(string[0]) ||
|
|
pangofont_char_width(layout, pfont, string[n-1],
|
|
utfptr, clen) != desired) {
|
|
/*
|
|
* If this character is a right-to-left one, or has an
|
|
* unusual width, then we must display it on its own.
|
|
*/
|
|
} else {
|
|
/*
|
|
* Try to amalgamate a contiguous string of characters
|
|
* with the expected sensible width, for the common case
|
|
* in which we're using a monospaced font and everything
|
|
* works as expected.
|
|
*/
|
|
while (clen < utflen) {
|
|
int oldclen = clen;
|
|
clen++; /* skip UTF-8 introducer byte */
|
|
while (clen < utflen &&
|
|
(unsigned char)utfptr[clen] >= 0x80 &&
|
|
(unsigned char)utfptr[clen] < 0xC0)
|
|
clen++;
|
|
n++;
|
|
if (is_rtl(string[n-1]) ||
|
|
pangofont_char_width(layout, pfont,
|
|
string[n-1], utfptr + oldclen,
|
|
clen - oldclen) != desired) {
|
|
clen = oldclen;
|
|
n--;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pango_layout_set_text(layout, utfptr, clen);
|
|
pango_layout_get_pixel_extents(layout, NULL, &rect);
|
|
|
|
draw_layout(ctx,
|
|
x + (n*cellwidth - rect.width)/2,
|
|
y + (pfont->u.height - rect.height)/2, layout);
|
|
if (shadowbold)
|
|
draw_layout(ctx,
|
|
x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
|
|
y + (pfont->u.height - rect.height)/2, layout);
|
|
|
|
utflen -= clen;
|
|
utfptr += clen;
|
|
string += n;
|
|
x += n * cellwidth;
|
|
}
|
|
|
|
sfree(utfstring);
|
|
|
|
g_object_unref(layout);
|
|
}
|
|
|
|
static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth)
|
|
{
|
|
pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
|
|
cellwidth, false);
|
|
}
|
|
|
|
static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string,
|
|
int len, bool wide, bool bold,
|
|
int cellwidth)
|
|
{
|
|
wchar_t *tmpstring = NULL;
|
|
if (mk_wcwidth(string[0]) == 0) {
|
|
/*
|
|
* If we've been told to draw a sequence of _only_ combining
|
|
* characters, prefix a space so that they have something to
|
|
* combine with.
|
|
*/
|
|
tmpstring = snewn(len+1, wchar_t);
|
|
memcpy(tmpstring+1, string, len * sizeof(wchar_t));
|
|
tmpstring[0] = L' ';
|
|
string = tmpstring;
|
|
len++;
|
|
}
|
|
pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
|
|
cellwidth, true);
|
|
sfree(tmpstring);
|
|
}
|
|
|
|
/*
|
|
* Dummy size value to be used when converting a
|
|
* PangoFontDescription of a scalable font to a string for
|
|
* internal use.
|
|
*/
|
|
#define PANGO_DUMMY_SIZE 12
|
|
|
|
static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
|
|
void *callback_ctx)
|
|
{
|
|
PangoContext *ctx;
|
|
#ifndef PANGO_PRE_1POINT6
|
|
PangoFontMap *map;
|
|
#endif
|
|
PangoFontFamily **families;
|
|
int i, nfamilies;
|
|
|
|
ctx = gtk_widget_get_pango_context(widget);
|
|
if (!ctx)
|
|
return;
|
|
|
|
/*
|
|
* Ask Pango for a list of font families, and iterate through
|
|
* them.
|
|
*/
|
|
#ifndef PANGO_PRE_1POINT6
|
|
map = pango_context_get_font_map(ctx);
|
|
if (!map)
|
|
return;
|
|
pango_font_map_list_families(map, &families, &nfamilies);
|
|
#else
|
|
pango_context_list_families(ctx, &families, &nfamilies);
|
|
#endif
|
|
for (i = 0; i < nfamilies; i++) {
|
|
PangoFontFamily *family = families[i];
|
|
const char *familyname;
|
|
int flags;
|
|
PangoFontFace **faces;
|
|
int j, nfaces;
|
|
|
|
/*
|
|
* Set up our flags for this font family, and get the name
|
|
* string.
|
|
*/
|
|
flags = FONTFLAG_CLIENTSIDE;
|
|
#ifndef PANGO_PRE_1POINT4
|
|
/*
|
|
* In very early versions of Pango, we can't tell
|
|
* monospaced fonts from non-monospaced.
|
|
*/
|
|
if (!pango_font_family_is_monospace(family))
|
|
flags |= FONTFLAG_NONMONOSPACED;
|
|
#endif
|
|
familyname = pango_font_family_get_name(family);
|
|
|
|
/*
|
|
* Go through the available font faces in this family.
|
|
*/
|
|
pango_font_family_list_faces(family, &faces, &nfaces);
|
|
for (j = 0; j < nfaces; j++) {
|
|
PangoFontFace *face = faces[j];
|
|
PangoFontDescription *desc;
|
|
const char *facename;
|
|
int *sizes;
|
|
int k, nsizes, dummysize;
|
|
|
|
/*
|
|
* Get the face name string.
|
|
*/
|
|
facename = pango_font_face_get_face_name(face);
|
|
|
|
/*
|
|
* Set up a font description with what we've got so
|
|
* far. We'll fill in the size field manually and then
|
|
* call pango_font_description_to_string() to give the
|
|
* full real name of the specific font.
|
|
*/
|
|
desc = pango_font_face_describe(face);
|
|
|
|
/*
|
|
* See if this font has a list of specific sizes.
|
|
*/
|
|
#ifndef PANGO_PRE_1POINT4
|
|
pango_font_face_list_sizes(face, &sizes, &nsizes);
|
|
#else
|
|
/*
|
|
* In early versions of Pango, that call wasn't
|
|
* supported; we just have to assume everything is
|
|
* scalable.
|
|
*/
|
|
sizes = NULL;
|
|
#endif
|
|
if (!sizes) {
|
|
/*
|
|
* Write a single entry with a dummy size.
|
|
*/
|
|
dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
|
|
sizes = &dummysize;
|
|
nsizes = 1;
|
|
}
|
|
|
|
/*
|
|
* If so, go through them one by one.
|
|
*/
|
|
for (k = 0; k < nsizes; k++) {
|
|
char *fullname, *stylekey;
|
|
|
|
pango_font_description_set_size(desc, sizes[k]);
|
|
|
|
fullname = pango_font_description_to_string(desc);
|
|
|
|
/*
|
|
* Construct the sorting key for font styles.
|
|
*/
|
|
{
|
|
strbuf *buf = strbuf_new();
|
|
|
|
int weight = pango_font_description_get_weight(desc);
|
|
/* Weight: normal, then lighter, then bolder */
|
|
if (weight <= PANGO_WEIGHT_NORMAL)
|
|
weight = PANGO_WEIGHT_NORMAL - weight;
|
|
strbuf_catf(buf, "%4d", weight);
|
|
|
|
strbuf_catf(buf, " %2d",
|
|
pango_font_description_get_style(desc));
|
|
|
|
int stretch = pango_font_description_get_stretch(desc);
|
|
/* Stretch: closer to normal sorts earlier */
|
|
stretch = 2 * abs(PANGO_STRETCH_NORMAL - stretch) +
|
|
(stretch < PANGO_STRETCH_NORMAL);
|
|
strbuf_catf(buf, " %2d", stretch);
|
|
|
|
strbuf_catf(buf, " %2d",
|
|
pango_font_description_get_variant(desc));
|
|
|
|
stylekey = strbuf_to_str(buf);
|
|
}
|
|
|
|
/*
|
|
* Got everything. Hand off to the callback.
|
|
* (The charset string is NULL, because only
|
|
* server-side X fonts use it.)
|
|
*/
|
|
callback(callback_ctx, fullname, familyname, NULL, facename,
|
|
stylekey,
|
|
(sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
|
|
flags, &pangofont_vtable);
|
|
|
|
sfree(stylekey);
|
|
g_free(fullname);
|
|
}
|
|
if (sizes != &dummysize)
|
|
g_free(sizes);
|
|
|
|
pango_font_description_free(desc);
|
|
}
|
|
g_free(faces);
|
|
}
|
|
g_free(families);
|
|
}
|
|
|
|
static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
|
|
int *size, int *flags,
|
|
bool resolve_aliases)
|
|
{
|
|
/*
|
|
* When given a Pango font name to try to make sense of for a
|
|
* font selector, we must normalise it to PANGO_DUMMY_SIZE and
|
|
* extract its original size (in pixels) into the `size' field.
|
|
*/
|
|
PangoContext *ctx;
|
|
#ifndef PANGO_PRE_1POINT6
|
|
PangoFontMap *map;
|
|
#endif
|
|
PangoFontDescription *desc;
|
|
PangoFontset *fset;
|
|
PangoFontMetrics *metrics;
|
|
char *newname, *retname;
|
|
|
|
desc = pango_font_description_from_string(name);
|
|
if (!desc)
|
|
return NULL;
|
|
ctx = gtk_widget_get_pango_context(widget);
|
|
if (!ctx) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
if (!pangofont_check_desc_makes_sense(ctx, desc)) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
#ifndef PANGO_PRE_1POINT6
|
|
map = pango_context_get_font_map(ctx);
|
|
if (!map) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
fset = pango_font_map_load_fontset(map, ctx, desc,
|
|
pango_context_get_language(ctx));
|
|
#else
|
|
fset = pango_context_load_fontset(ctx, desc,
|
|
pango_context_get_language(ctx));
|
|
#endif
|
|
if (!fset) {
|
|
pango_font_description_free(desc);
|
|
return NULL;
|
|
}
|
|
metrics = pango_fontset_get_metrics(fset);
|
|
if (!metrics ||
|
|
pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
|
|
pango_font_description_free(desc);
|
|
g_object_unref(fset);
|
|
return NULL;
|
|
}
|
|
|
|
*size = PANGO_PIXELS(pango_font_description_get_size(desc));
|
|
*flags = FONTFLAG_CLIENTSIDE;
|
|
pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
|
|
newname = pango_font_description_to_string(desc);
|
|
retname = dupstr(newname);
|
|
g_free(newname);
|
|
|
|
pango_font_metrics_unref(metrics);
|
|
pango_font_description_free(desc);
|
|
g_object_unref(fset);
|
|
|
|
return retname;
|
|
}
|
|
|
|
static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
|
|
int size)
|
|
{
|
|
PangoFontDescription *desc;
|
|
char *newname, *retname;
|
|
|
|
desc = pango_font_description_from_string(name);
|
|
if (!desc)
|
|
return NULL;
|
|
pango_font_description_set_size(desc, size * PANGO_SCALE);
|
|
newname = pango_font_description_to_string(desc);
|
|
retname = dupstr(newname);
|
|
g_free(newname);
|
|
pango_font_description_free(desc);
|
|
|
|
return retname;
|
|
}
|
|
|
|
static char *pangofont_size_increment(unifont *font, int increment)
|
|
{
|
|
struct pangofont *pfont = container_of(font, struct pangofont, u);
|
|
PangoFontDescription *desc;
|
|
int size;
|
|
char *newname, *retname;
|
|
|
|
desc = pango_font_description_copy_static(pfont->desc);
|
|
|
|
size = pango_font_description_get_size(desc);
|
|
size += PANGO_SCALE * increment;
|
|
|
|
if (size <= 0) {
|
|
retname = NULL;
|
|
} else {
|
|
pango_font_description_set_size(desc, size);
|
|
newname = pango_font_description_to_string(desc);
|
|
retname = dupcat(pfont->u.vt->prefix, ":", newname);
|
|
g_free(newname);
|
|
}
|
|
|
|
pango_font_description_free(desc);
|
|
return retname;
|
|
}
|
|
|
|
#endif /* GTK_CHECK_VERSION(2,0,0) */
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* Outermost functions which do the vtable dispatch.
|
|
*/
|
|
|
|
/*
|
|
* Complete list of font-type subclasses. Listed in preference
|
|
* order for unifont_create(). (That is, in the extremely unlikely
|
|
* event that the same font name is valid as both a Pango and an
|
|
* X11 font, it will be interpreted as the former in the absence
|
|
* of an explicit type-disambiguating prefix.)
|
|
*
|
|
* The 'multifont' subclass is omitted here, as discussed above.
|
|
*/
|
|
static const struct UnifontVtable *unifont_types[] = {
|
|
#if GTK_CHECK_VERSION(2,0,0)
|
|
&pangofont_vtable,
|
|
#endif
|
|
#ifndef NOT_X_WINDOWS
|
|
&x11font_vtable,
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* Function which takes a font name and processes the optional
|
|
* scheme prefix. Returns the tail of the font name suitable for
|
|
* passing to individual font scheme functions, and also provides
|
|
* a subrange of the unifont_types[] array above.
|
|
*
|
|
* The return values `start' and `end' denote a half-open interval
|
|
* in unifont_types[]; that is, the correct way to iterate over
|
|
* them is
|
|
*
|
|
* for (i = start; i < end; i++) {...}
|
|
*/
|
|
static const char *unifont_do_prefix(const char *name, int *start, int *end)
|
|
{
|
|
int colonpos = strcspn(name, ":");
|
|
int i;
|
|
|
|
if (name[colonpos]) {
|
|
/*
|
|
* There's a colon prefix on the font name. Use it to work
|
|
* out which subclass to use.
|
|
*/
|
|
for (i = 0; i < lenof(unifont_types); i++) {
|
|
if (strlen(unifont_types[i]->prefix) == colonpos &&
|
|
!strncmp(unifont_types[i]->prefix, name, colonpos)) {
|
|
*start = i;
|
|
*end = i+1;
|
|
return name + colonpos + 1;
|
|
}
|
|
}
|
|
/*
|
|
* None matched, so return an empty scheme list to prevent
|
|
* any scheme from being called at all.
|
|
*/
|
|
*start = *end = 0;
|
|
return name + colonpos + 1;
|
|
} else {
|
|
/*
|
|
* No colon prefix, so just use all the subclasses.
|
|
*/
|
|
*start = 0;
|
|
*end = lenof(unifont_types);
|
|
return name;
|
|
}
|
|
}
|
|
|
|
unifont *unifont_create(GtkWidget *widget, const char *name, bool wide,
|
|
bool bold, int shadowoffset, bool shadowalways)
|
|
{
|
|
int i, start, end;
|
|
|
|
name = unifont_do_prefix(name, &start, &end);
|
|
|
|
for (i = start; i < end; i++) {
|
|
unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
|
|
shadowoffset, shadowalways);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
return NULL; /* font not found in any scheme */
|
|
}
|
|
|
|
void unifont_destroy(unifont *font)
|
|
{
|
|
font->vt->destroy(font);
|
|
}
|
|
|
|
void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth)
|
|
{
|
|
font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
|
|
}
|
|
|
|
void unifont_draw_combining(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth)
|
|
{
|
|
font->vt->draw_combining(ctx, font, x, y, string, len, wide, bold,
|
|
cellwidth);
|
|
}
|
|
|
|
char *unifont_size_increment(unifont *font, int increment)
|
|
{
|
|
return font->vt->size_increment(font, increment);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* Multiple-font wrapper. This is a type of unifont which encapsulates
|
|
* up to two other unifonts, permitting missing glyphs in the main
|
|
* font to be filled in by a fallback font.
|
|
*
|
|
* This is a type of unifont just like the previous two, but it has a
|
|
* separate constructor which is manually called by the client, so it
|
|
* doesn't appear in the list of available font types enumerated by
|
|
* unifont_create. This means it's not used by unifontsel either, so
|
|
* it doesn't need to support any methods except draw_text and
|
|
* destroy.
|
|
*/
|
|
|
|
static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth);
|
|
static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string,
|
|
int len, bool wide, bool bold,
|
|
int cellwidth);
|
|
static void multifont_destroy(unifont *font);
|
|
static char *multifont_size_increment(unifont *font, int increment);
|
|
|
|
struct multifont {
|
|
unifont *main;
|
|
unifont *fallback;
|
|
|
|
struct unifont u;
|
|
};
|
|
|
|
static const UnifontVtable multifont_vtable = {
|
|
.create = NULL, /* creation is done specially */
|
|
.create_fallback = NULL,
|
|
.destroy = multifont_destroy,
|
|
.has_glyph = NULL,
|
|
.draw_text = multifont_draw_text,
|
|
.draw_combining = multifont_draw_combining,
|
|
.enum_fonts = NULL,
|
|
.canonify_fontname = NULL,
|
|
.scale_fontname = NULL,
|
|
.size_increment = multifont_size_increment,
|
|
.prefix = "client",
|
|
};
|
|
|
|
unifont *multifont_create(GtkWidget *widget, const char *name,
|
|
bool wide, bool bold,
|
|
int shadowoffset, bool shadowalways)
|
|
{
|
|
int i;
|
|
unifont *font, *fallback;
|
|
struct multifont *mfont;
|
|
|
|
font = unifont_create(widget, name, wide, bold,
|
|
shadowoffset, shadowalways);
|
|
if (!font)
|
|
return NULL;
|
|
|
|
fallback = NULL;
|
|
if (font->want_fallback) {
|
|
for (i = 0; i < lenof(unifont_types); i++) {
|
|
if (unifont_types[i]->create_fallback) {
|
|
fallback = unifont_types[i]->create_fallback
|
|
(widget, font->height, wide, bold,
|
|
shadowoffset, shadowalways);
|
|
if (fallback)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Construct our multifont. Public members are all copied from the
|
|
* primary font we're wrapping.
|
|
*/
|
|
mfont = snew(struct multifont);
|
|
mfont->u.vt = &multifont_vtable;
|
|
mfont->u.width = font->width;
|
|
mfont->u.ascent = font->ascent;
|
|
mfont->u.descent = font->descent;
|
|
mfont->u.height = font->height;
|
|
mfont->u.strikethrough_y = font->strikethrough_y;
|
|
mfont->u.public_charset = font->public_charset;
|
|
mfont->u.want_fallback = false; /* shouldn't be needed, but just in case */
|
|
mfont->u.preferred_drawtype = font->preferred_drawtype;
|
|
mfont->main = font;
|
|
mfont->fallback = fallback;
|
|
|
|
return &mfont->u;
|
|
}
|
|
|
|
static void multifont_destroy(unifont *font)
|
|
{
|
|
struct multifont *mfont = container_of(font, struct multifont, u);
|
|
unifont_destroy(mfont->main);
|
|
if (mfont->fallback)
|
|
unifont_destroy(mfont->fallback);
|
|
sfree(mfont);
|
|
}
|
|
|
|
typedef void (*unifont_draw_func_t)(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string,
|
|
int len, bool wide, bool bold,
|
|
int cellwidth);
|
|
|
|
static void multifont_draw_main(unifont_drawctx *ctx, unifont *font, int x,
|
|
int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth,
|
|
int cellinc, unifont_draw_func_t draw)
|
|
{
|
|
struct multifont *mfont = container_of(font, struct multifont, u);
|
|
unifont *f;
|
|
bool ok;
|
|
int i;
|
|
|
|
while (len > 0) {
|
|
/*
|
|
* Find a maximal sequence of characters which are, or are
|
|
* not, supported by our main font.
|
|
*/
|
|
ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
|
|
for (i = 1;
|
|
i < len &&
|
|
!mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
|
|
i++);
|
|
|
|
/*
|
|
* Now display it.
|
|
*/
|
|
f = ok ? mfont->main : mfont->fallback;
|
|
if (f)
|
|
draw(ctx, f, x, y, string, i, wide, bold, cellwidth);
|
|
string += i;
|
|
len -= i;
|
|
x += i * cellinc;
|
|
}
|
|
}
|
|
|
|
static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
|
|
int y, const wchar_t *string, int len,
|
|
bool wide, bool bold, int cellwidth)
|
|
{
|
|
multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
|
|
cellwidth, cellwidth, unifont_draw_text);
|
|
}
|
|
|
|
static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
|
|
int x, int y, const wchar_t *string,
|
|
int len, bool wide, bool bold,
|
|
int cellwidth)
|
|
{
|
|
multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
|
|
cellwidth, 0, unifont_draw_combining);
|
|
}
|
|
|
|
static char *multifont_size_increment(unifont *font, int increment)
|
|
{
|
|
struct multifont *mfont = container_of(font, struct multifont, u);
|
|
return unifont_size_increment(mfont->main, increment);
|
|
}
|
|
|
|
#if GTK_CHECK_VERSION(2,0,0)
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* Implementation of a unified font selector. Used on GTK 2 only;
|
|
* for GTK 1 we still use the standard font selector.
|
|
*/
|
|
|
|
typedef struct fontinfo fontinfo;
|
|
|
|
typedef struct unifontsel_internal {
|
|
GtkListStore *family_model, *style_model, *size_model;
|
|
GtkWidget *family_list, *style_list, *size_entry, *size_list;
|
|
GtkWidget *filter_buttons[4];
|
|
int n_filter_buttons;
|
|
GtkWidget *preview_area;
|
|
#ifndef NO_BACKING_PIXMAPS
|
|
GdkPixmap *preview_pixmap;
|
|
#endif
|
|
int preview_width, preview_height;
|
|
GdkColor preview_fg, preview_bg;
|
|
int filter_flags;
|
|
tree234 *fonts_by_realname, *fonts_by_selorder;
|
|
fontinfo *selected;
|
|
int selsize, intendedsize;
|
|
bool inhibit_response; /* inhibit callbacks when we change GUI controls */
|
|
|
|
unifontsel u;
|
|
} unifontsel_internal;
|
|
|
|
/*
|
|
* The structure held in the tree234s. All the string members are
|
|
* part of the same allocated area, so don't need freeing
|
|
* separately.
|
|
*/
|
|
struct fontinfo {
|
|
char *realname;
|
|
char *family, *charset, *style, *stylekey;
|
|
int size, flags;
|
|
/*
|
|
* Fallback sorting key, to permit multiple identical entries
|
|
* to exist in the selorder tree.
|
|
*/
|
|
int index;
|
|
/*
|
|
* Indices mapping fontinfo structures to indices in the list
|
|
* boxes. sizeindex is irrelevant if the font is scalable
|
|
* (size==0).
|
|
*/
|
|
int familyindex, styleindex, sizeindex;
|
|
/*
|
|
* The class of font.
|
|
*/
|
|
const struct UnifontVtable *fontclass;
|
|
};
|
|
|
|
struct fontinfo_realname_find {
|
|
const char *realname;
|
|
int flags;
|
|
};
|
|
|
|
static int strnullcasecmp(const char *a, const char *b)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* If exactly one of the inputs is NULL, it compares before
|
|
* the other one.
|
|
*/
|
|
if ((i = (!b) - (!a)) != 0)
|
|
return i;
|
|
|
|
/*
|
|
* NULL compares equal.
|
|
*/
|
|
if (!a)
|
|
return 0;
|
|
|
|
/*
|
|
* Otherwise, ordinary strcasecmp.
|
|
*/
|
|
return g_ascii_strcasecmp(a, b);
|
|
}
|
|
|
|
static int fontinfo_realname_compare(void *av, void *bv)
|
|
{
|
|
fontinfo *a = (fontinfo *)av;
|
|
fontinfo *b = (fontinfo *)bv;
|
|
int i;
|
|
|
|
if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
|
|
return i;
|
|
if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
|
|
return ((a->flags & FONTFLAG_SORT_MASK) <
|
|
(b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
|
|
return 0;
|
|
}
|
|
|
|
static int fontinfo_realname_find(void *av, void *bv)
|
|
{
|
|
struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
|
|
fontinfo *b = (fontinfo *)bv;
|
|
int i;
|
|
|
|
if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
|
|
return i;
|
|
if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
|
|
return ((a->flags & FONTFLAG_SORT_MASK) <
|
|
(b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
|
|
return 0;
|
|
}
|
|
|
|
static int fontinfo_selorder_compare(void *av, void *bv)
|
|
{
|
|
fontinfo *a = (fontinfo *)av;
|
|
fontinfo *b = (fontinfo *)bv;
|
|
int i;
|
|
if ((i = strnullcasecmp(a->family, b->family)) != 0)
|
|
return i;
|
|
/*
|
|
* Font class comes immediately after family, so that fonts
|
|
* from different classes with the same family
|
|
*/
|
|
if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
|
|
return ((a->flags & FONTFLAG_SORT_MASK) <
|
|
(b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
|
|
if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
|
|
return i;
|
|
if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
|
|
return i;
|
|
if ((i = strnullcasecmp(a->style, b->style)) != 0)
|
|
return i;
|
|
if (a->size != b->size)
|
|
return (a->size < b->size ? -1 : +1);
|
|
if (a->index != b->index)
|
|
return (a->index < b->index ? -1 : +1);
|
|
return 0;
|
|
}
|
|
|
|
static void unifontsel_draw_preview_text(unifontsel_internal *fs);
|
|
|
|
static void unifontsel_deselect(unifontsel_internal *fs)
|
|
{
|
|
fs->selected = NULL;
|
|
gtk_list_store_clear(fs->style_model);
|
|
gtk_list_store_clear(fs->size_model);
|
|
gtk_widget_set_sensitive(fs->u.ok_button, false);
|
|
gtk_widget_set_sensitive(fs->size_entry, false);
|
|
unifontsel_draw_preview_text(fs);
|
|
}
|
|
|
|
static void unifontsel_setup_familylist(unifontsel_internal *fs)
|
|
{
|
|
GtkTreeIter iter;
|
|
int i, listindex, minpos = -1, maxpos = -1;
|
|
char *currfamily = NULL;
|
|
int currflags = -1;
|
|
fontinfo *info;
|
|
|
|
fs->inhibit_response = true;
|
|
|
|
gtk_list_store_clear(fs->family_model);
|
|
listindex = 0;
|
|
|
|
/*
|
|
* Search through the font tree for anything matching our
|
|
* current filter criteria. When we find one, add its font
|
|
* name to the list box.
|
|
*/
|
|
for (i = 0 ;; i++) {
|
|
info = (fontinfo *)index234(fs->fonts_by_selorder, i);
|
|
/*
|
|
* info may be NULL if we've just run off the end of the
|
|
* tree. We must still do a processing pass in that
|
|
* situation, in case we had an unfinished font record in
|
|
* progress.
|
|
*/
|
|
if (info && (info->flags &~ fs->filter_flags)) {
|
|
info->familyindex = -1;
|
|
continue; /* we're filtering out this font */
|
|
}
|
|
if (!info || strnullcasecmp(currfamily, info->family) ||
|
|
currflags != (info->flags & FONTFLAG_SORT_MASK)) {
|
|
/*
|
|
* We've either finished a family, or started a new
|
|
* one, or both.
|
|
*/
|
|
if (currfamily) {
|
|
gtk_list_store_append(fs->family_model, &iter);
|
|
gtk_list_store_set(fs->family_model, &iter,
|
|
0, currfamily, 1, minpos, 2, maxpos+1, -1);
|
|
listindex++;
|
|
}
|
|
if (info) {
|
|
minpos = i;
|
|
currfamily = info->family;
|
|
currflags = info->flags & FONTFLAG_SORT_MASK;
|
|
}
|
|
}
|
|
if (!info)
|
|
break; /* now we're done */
|
|
info->familyindex = listindex;
|
|
maxpos = i;
|
|
}
|
|
|
|
/*
|
|
* If we've just filtered out the previously selected font,
|
|
* deselect it thoroughly.
|
|
*/
|
|
if (fs->selected && fs->selected->familyindex < 0)
|
|
unifontsel_deselect(fs);
|
|
|
|
fs->inhibit_response = false;
|
|
}
|
|
|
|
static void unifontsel_setup_stylelist(unifontsel_internal *fs,
|
|
int start, int end)
|
|
{
|
|
GtkTreeIter iter;
|
|
int i, listindex, minpos = -1, maxpos = -1;
|
|
bool started = false;
|
|
char *currcs = NULL, *currstyle = NULL;
|
|
fontinfo *info;
|
|
|
|
gtk_list_store_clear(fs->style_model);
|
|
listindex = 0;
|
|
started = false;
|
|
|
|
/*
|
|
* Search through the font tree for anything matching our
|
|
* current filter criteria. When we find one, add its charset
|
|
* and/or style name to the list box.
|
|
*/
|
|
for (i = start; i <= end; i++) {
|
|
if (i == end)
|
|
info = NULL;
|
|
else
|
|
info = (fontinfo *)index234(fs->fonts_by_selorder, i);
|
|
/*
|
|
* info may be NULL if we've just run off the end of the
|
|
* relevant data. We must still do a processing pass in
|
|
* that situation, in case we had an unfinished font
|
|
* record in progress.
|
|
*/
|
|
if (info && (info->flags &~ fs->filter_flags)) {
|
|
info->styleindex = -1;
|
|
continue; /* we're filtering out this font */
|
|
}
|
|
if (!info || !started || strnullcasecmp(currcs, info->charset) ||
|
|
strnullcasecmp(currstyle, info->style)) {
|
|
/*
|
|
* We've either finished a style/charset, or started a
|
|
* new one, or both.
|
|
*/
|
|
started = true;
|
|
if (currstyle) {
|
|
gtk_list_store_append(fs->style_model, &iter);
|
|
gtk_list_store_set(fs->style_model, &iter,
|
|
0, currstyle, 1, minpos, 2, maxpos+1,
|
|
3, true, 4, PANGO_WEIGHT_NORMAL, -1);
|
|
listindex++;
|
|
}
|
|
if (info) {
|
|
minpos = i;
|
|
if (info->charset && strnullcasecmp(currcs, info->charset)) {
|
|
gtk_list_store_append(fs->style_model, &iter);
|
|
gtk_list_store_set(fs->style_model, &iter,
|
|
0, info->charset, 1, -1, 2, -1,
|
|
3, false, 4, PANGO_WEIGHT_BOLD, -1);
|
|
listindex++;
|
|
}
|
|
currcs = info->charset;
|
|
currstyle = info->style;
|
|
}
|
|
}
|
|
if (!info)
|
|
break; /* now we're done */
|
|
info->styleindex = listindex;
|
|
maxpos = i;
|
|
}
|
|
}
|
|
|
|
static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
|
|
|
|
static void unifontsel_setup_sizelist(unifontsel_internal *fs,
|
|
int start, int end)
|
|
{
|
|
GtkTreeIter iter;
|
|
int i, listindex;
|
|
char sizetext[40];
|
|
fontinfo *info;
|
|
|
|
gtk_list_store_clear(fs->size_model);
|
|
listindex = 0;
|
|
|
|
/*
|
|
* Search through the font tree for anything matching our
|
|
* current filter criteria. When we find one, add its font
|
|
* name to the list box.
|
|
*/
|
|
for (i = start; i < end; i++) {
|
|
info = (fontinfo *)index234(fs->fonts_by_selorder, i);
|
|
if (info->flags &~ fs->filter_flags) {
|
|
info->sizeindex = -1;
|
|
continue; /* we're filtering out this font */
|
|
}
|
|
if (info->size) {
|
|
sprintf(sizetext, "%d", info->size);
|
|
info->sizeindex = listindex;
|
|
gtk_list_store_append(fs->size_model, &iter);
|
|
gtk_list_store_set(fs->size_model, &iter,
|
|
0, sizetext, 1, i, 2, info->size, -1);
|
|
listindex++;
|
|
} else {
|
|
int j;
|
|
|
|
assert(i == start);
|
|
assert(i+1 == end);
|
|
|
|
for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
|
|
sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
|
|
gtk_list_store_append(fs->size_model, &iter);
|
|
gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
|
|
2, unifontsel_default_sizes[j], -1);
|
|
listindex++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < fs->n_filter_buttons; i++) {
|
|
int flagbit = GPOINTER_TO_INT(g_object_get_data
|
|
(G_OBJECT(fs->filter_buttons[i]),
|
|
"user-data"));
|
|
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
|
|
!!(fs->filter_flags & flagbit));
|
|
}
|
|
}
|
|
|
|
static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
|
|
unifontsel_internal *fs)
|
|
{
|
|
unifont *font;
|
|
char *sizename = NULL;
|
|
fontinfo *info = fs->selected;
|
|
|
|
if (info) {
|
|
sizename = info->fontclass->scale_fontname
|
|
(GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
|
|
font = info->fontclass->create(GTK_WIDGET(fs->u.window),
|
|
sizename ? sizename : info->realname,
|
|
false, false, 0, 0);
|
|
} else
|
|
font = NULL;
|
|
|
|
#ifdef DRAW_TEXT_GDK
|
|
if (dctx->type == DRAWTYPE_GDK) {
|
|
gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
|
|
gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
|
|
fs->preview_width, fs->preview_height);
|
|
gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
|
|
}
|
|
#endif
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
if (dctx->type == DRAWTYPE_CAIRO) {
|
|
cairo_set_source_rgb(dctx->u.cairo.cr,
|
|
fs->preview_bg.red / 65535.0,
|
|
fs->preview_bg.green / 65535.0,
|
|
fs->preview_bg.blue / 65535.0);
|
|
cairo_paint(dctx->u.cairo.cr);
|
|
cairo_set_source_rgb(dctx->u.cairo.cr,
|
|
fs->preview_fg.red / 65535.0,
|
|
fs->preview_fg.green / 65535.0,
|
|
fs->preview_fg.blue / 65535.0);
|
|
}
|
|
#endif
|
|
|
|
if (font) {
|
|
/*
|
|
* The pangram used here is rather carefully
|
|
* constructed: it contains a sequence of very narrow
|
|
* letters (`jil') and a pair of adjacent very wide
|
|
* letters (`wm').
|
|
*
|
|
* If the user selects a proportional font, it will be
|
|
* coerced into fixed-width character cells when used
|
|
* in the actual terminal window. We therefore display
|
|
* it the same way in the preview pane, so as to show
|
|
* it the way it will actually be displayed - and we
|
|
* deliberately pick a pangram which will show the
|
|
* resulting miskerning at its worst.
|
|
*
|
|
* We aren't trying to sell people these fonts; we're
|
|
* trying to let them make an informed choice. Better
|
|
* that they find out the problems with using
|
|
* proportional fonts in terminal windows here than
|
|
* that they go to the effort of selecting their font
|
|
* and _then_ realise it was a mistake.
|
|
*/
|
|
info->fontclass->draw_text(dctx, font,
|
|
0, font->ascent,
|
|
L"bankrupt jilted showmen quiz convex fogey",
|
|
41, false, false, font->width);
|
|
info->fontclass->draw_text(dctx, font,
|
|
0, font->ascent + font->height,
|
|
L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
|
|
41, false, false, font->width);
|
|
/*
|
|
* The ordering of punctuation here is also selected
|
|
* with some specific aims in mind. I put ` and '
|
|
* together because some software (and people) still
|
|
* use them as matched quotes no matter what Unicode
|
|
* might say on the matter, so people can quickly
|
|
* check whether they look silly in a candidate font.
|
|
* The sequence #_@ is there to let people judge the
|
|
* suitability of the underscore as an effectively
|
|
* alphabetic character (since that's how it's often
|
|
* used in practice, at least by programmers).
|
|
*/
|
|
info->fontclass->draw_text(dctx, font,
|
|
0, font->ascent + font->height * 2,
|
|
L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
|
|
42, false, false, font->width);
|
|
|
|
info->fontclass->destroy(font);
|
|
}
|
|
|
|
sfree(sizename);
|
|
}
|
|
|
|
static void unifontsel_draw_preview_text(unifontsel_internal *fs)
|
|
{
|
|
unifont_drawctx dctx;
|
|
GdkWindow *target;
|
|
|
|
#ifndef NO_BACKING_PIXMAPS
|
|
target = fs->preview_pixmap;
|
|
#else
|
|
target = gtk_widget_get_window(fs->preview_area);
|
|
#endif
|
|
if (!target) /* we may be called when we haven't created everything yet */
|
|
return;
|
|
|
|
dctx.type = DRAWTYPE_DEFAULT;
|
|
#ifdef DRAW_TEXT_GDK
|
|
if (dctx.type == DRAWTYPE_GDK) {
|
|
dctx.u.gdk.target = target;
|
|
dctx.u.gdk.gc = gdk_gc_new(target);
|
|
}
|
|
#endif
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
if (dctx.type == DRAWTYPE_CAIRO) {
|
|
#if GTK_CHECK_VERSION(3,22,0)
|
|
cairo_region_t *region;
|
|
#endif
|
|
|
|
dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
|
|
|
|
#if GTK_CHECK_VERSION(3,22,0)
|
|
dctx.u.cairo.gdkwin = gtk_widget_get_window(dctx.u.cairo.widget);
|
|
region = gdk_window_get_clip_region(dctx.u.cairo.gdkwin);
|
|
dctx.u.cairo.drawctx = gdk_window_begin_draw_frame(
|
|
dctx.u.cairo.gdkwin, region);
|
|
dctx.u.cairo.cr = gdk_drawing_context_get_cairo_context(
|
|
dctx.u.cairo.drawctx);
|
|
cairo_region_destroy(region);
|
|
#else
|
|
dctx.u.cairo.cr = gdk_cairo_create(target);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
unifontsel_draw_preview_text_inner(&dctx, fs);
|
|
|
|
#ifdef DRAW_TEXT_GDK
|
|
if (dctx.type == DRAWTYPE_GDK) {
|
|
gdk_gc_unref(dctx.u.gdk.gc);
|
|
}
|
|
#endif
|
|
#ifdef DRAW_TEXT_CAIRO
|
|
if (dctx.type == DRAWTYPE_CAIRO) {
|
|
#if GTK_CHECK_VERSION(3,22,0)
|
|
gdk_window_end_draw_frame(dctx.u.cairo.gdkwin, dctx.u.cairo.drawctx);
|
|
#else
|
|
cairo_destroy(dctx.u.cairo.cr);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
|
|
NULL, false);
|
|
}
|
|
|
|
static void unifontsel_select_font(unifontsel_internal *fs,
|
|
fontinfo *info, int size, int leftlist,
|
|
bool size_is_explicit)
|
|
{
|
|
int index;
|
|
int minval, maxval;
|
|
gboolean success;
|
|
GtkTreePath *treepath;
|
|
GtkTreeIter iter;
|
|
|
|
fs->inhibit_response = true;
|
|
|
|
fs->selected = info;
|
|
fs->selsize = size;
|
|
if (size_is_explicit)
|
|
fs->intendedsize = size;
|
|
|
|
gtk_widget_set_sensitive(fs->u.ok_button, true);
|
|
|
|
/*
|
|
* Find the index of this fontinfo in the selorder list.
|
|
*/
|
|
index = -1;
|
|
findpos234(fs->fonts_by_selorder, info, NULL, &index);
|
|
assert(index >= 0);
|
|
|
|
/*
|
|
* Adjust the font selector flags and redo the font family
|
|
* list box, if necessary.
|
|
*/
|
|
if (leftlist <= 0 &&
|
|
(fs->filter_flags | info->flags) != fs->filter_flags) {
|
|
fs->filter_flags |= info->flags;
|
|
unifontsel_set_filter_buttons(fs);
|
|
unifontsel_setup_familylist(fs);
|
|
}
|
|
|
|
/*
|
|
* Find the appropriate family name and select it in the list.
|
|
*/
|
|
assert(info->familyindex >= 0);
|
|
treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
|
|
gtk_tree_selection_select_path
|
|
(gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
|
|
treepath);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
|
|
treepath, NULL, false, 0.0, 0.0);
|
|
success = gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model),
|
|
&iter, treepath);
|
|
assert(success);
|
|
gtk_tree_path_free(treepath);
|
|
|
|
/*
|
|
* Now set up the font style list.
|
|
*/
|
|
gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
|
|
1, &minval, 2, &maxval, -1);
|
|
if (leftlist <= 1)
|
|
unifontsel_setup_stylelist(fs, minval, maxval);
|
|
|
|
/*
|
|
* Find the appropriate style name and select it in the list.
|
|
*/
|
|
if (info->style) {
|
|
assert(info->styleindex >= 0);
|
|
treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
|
|
gtk_tree_selection_select_path
|
|
(gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
|
|
treepath);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
|
|
treepath, NULL, false, 0.0, 0.0);
|
|
gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
|
|
&iter, treepath);
|
|
gtk_tree_path_free(treepath);
|
|
|
|
/*
|
|
* And set up the size list.
|
|
*/
|
|
gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
|
|
1, &minval, 2, &maxval, -1);
|
|
if (leftlist <= 2)
|
|
unifontsel_setup_sizelist(fs, minval, maxval);
|
|
|
|
/*
|
|
* Find the appropriate size, and select it in the list.
|
|
*/
|
|
if (info->size) {
|
|
assert(info->sizeindex >= 0);
|
|
treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
|
|
gtk_tree_selection_select_path
|
|
(gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
|
|
treepath);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
|
|
treepath, NULL, false, 0.0, 0.0);
|
|
gtk_tree_path_free(treepath);
|
|
size = info->size;
|
|
} else {
|
|
int j;
|
|
for (j = 0; j < lenof(unifontsel_default_sizes); j++)
|
|
if (unifontsel_default_sizes[j] == size) {
|
|
treepath = gtk_tree_path_new_from_indices(j, -1);
|
|
gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
|
|
treepath, NULL, false);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
|
|
treepath, NULL, false, 0.0,
|
|
0.0);
|
|
gtk_tree_path_free(treepath);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* And set up the font size text entry box.
|
|
*/
|
|
{
|
|
char sizetext[40];
|
|
sprintf(sizetext, "%d", size);
|
|
gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
|
|
}
|
|
} else {
|
|
if (leftlist <= 2)
|
|
unifontsel_setup_sizelist(fs, 0, 0);
|
|
gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
|
|
}
|
|
|
|
/*
|
|
* Grey out the font size edit box if we're not using a
|
|
* scalable font.
|
|
*/
|
|
gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
|
|
fs->selected->size == 0);
|
|
gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
|
|
|
|
unifontsel_draw_preview_text(fs);
|
|
|
|
fs->inhibit_response = false;
|
|
}
|
|
|
|
static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
bool newstate = gtk_toggle_button_get_active(tb);
|
|
int newflags;
|
|
int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
|
|
"user-data"));
|
|
|
|
if (newstate)
|
|
newflags = fs->filter_flags | flagbit;
|
|
else
|
|
newflags = fs->filter_flags & ~flagbit;
|
|
|
|
if (fs->filter_flags != newflags) {
|
|
fs->filter_flags = newflags;
|
|
unifontsel_setup_familylist(fs);
|
|
}
|
|
}
|
|
|
|
static void unifontsel_add_entry(void *ctx, const char *realfontname,
|
|
const char *family, const char *charset,
|
|
const char *style, const char *stylekey,
|
|
int size, int flags,
|
|
const struct UnifontVtable *fontclass)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)ctx;
|
|
fontinfo *info;
|
|
int totalsize;
|
|
char *p;
|
|
|
|
totalsize = sizeof(fontinfo) + strlen(realfontname) +
|
|
(family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
|
|
(style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
|
|
info = (fontinfo *)smalloc(totalsize);
|
|
info->fontclass = fontclass;
|
|
p = (char *)info + sizeof(fontinfo);
|
|
info->realname = p;
|
|
strcpy(p, realfontname);
|
|
p += 1+strlen(p);
|
|
if (family) {
|
|
info->family = p;
|
|
strcpy(p, family);
|
|
p += 1+strlen(p);
|
|
} else
|
|
info->family = NULL;
|
|
if (charset) {
|
|
info->charset = p;
|
|
strcpy(p, charset);
|
|
p += 1+strlen(p);
|
|
} else
|
|
info->charset = NULL;
|
|
if (style) {
|
|
info->style = p;
|
|
strcpy(p, style);
|
|
p += 1+strlen(p);
|
|
} else
|
|
info->style = NULL;
|
|
if (stylekey) {
|
|
info->stylekey = p;
|
|
strcpy(p, stylekey);
|
|
p += 1+strlen(p);
|
|
} else
|
|
info->stylekey = NULL;
|
|
assert(p - (char *)info <= totalsize);
|
|
info->size = size;
|
|
info->flags = flags;
|
|
info->index = count234(fs->fonts_by_selorder);
|
|
|
|
/*
|
|
* It's just conceivable that a misbehaving font enumerator
|
|
* might tell us about the same font real name more than once,
|
|
* in which case we should silently drop the new one.
|
|
*/
|
|
if (add234(fs->fonts_by_realname, info) != info) {
|
|
sfree(info);
|
|
return;
|
|
}
|
|
/*
|
|
* However, we should never get a duplicate key in the
|
|
* selorder tree, because the index field carefully
|
|
* disambiguates otherwise identical records.
|
|
*/
|
|
add234(fs->fonts_by_selorder, info);
|
|
}
|
|
|
|
static fontinfo *update_for_intended_size(unifontsel_internal *fs,
|
|
fontinfo *info)
|
|
{
|
|
fontinfo info2, *below, *above;
|
|
int pos;
|
|
|
|
/*
|
|
* Copy the info structure. This doesn't copy its dynamic
|
|
* string fields, but that's unimportant because all we're
|
|
* going to do is to adjust the size field and use it in one
|
|
* tree search.
|
|
*/
|
|
info2 = *info;
|
|
info2.size = fs->intendedsize;
|
|
|
|
/*
|
|
* Search in the tree to find the fontinfo structure which
|
|
* best approximates the size the user last requested.
|
|
*/
|
|
below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
|
|
REL234_LE, &pos);
|
|
if (!below)
|
|
pos = -1;
|
|
above = index234(fs->fonts_by_selorder, pos+1);
|
|
|
|
/*
|
|
* See if we've found it exactly, which is an easy special
|
|
* case. If we have, it'll be in `below' and not `above',
|
|
* because we did a REL234_LE rather than REL234_LT search.
|
|
*/
|
|
if (below && !fontinfo_selorder_compare(&info2, below))
|
|
return below;
|
|
|
|
/*
|
|
* Now we've either found two suitable fonts, one smaller and
|
|
* one larger, or we're at one or other extreme end of the
|
|
* scale. Find out which, by NULLing out either of below and
|
|
* above if it differs from this one in any respect but size
|
|
* (and the disambiguating index field). Bear in mind, also,
|
|
* that either one might _already_ be NULL if we're at the
|
|
* extreme ends of the font list.
|
|
*/
|
|
if (below) {
|
|
info2.size = below->size;
|
|
info2.index = below->index;
|
|
if (fontinfo_selorder_compare(&info2, below))
|
|
below = NULL;
|
|
}
|
|
if (above) {
|
|
info2.size = above->size;
|
|
info2.index = above->index;
|
|
if (fontinfo_selorder_compare(&info2, above))
|
|
above = NULL;
|
|
}
|
|
|
|
/*
|
|
* Now return whichever of above and below is non-NULL, if
|
|
* that's unambiguous.
|
|
*/
|
|
if (!above)
|
|
return below;
|
|
if (!below)
|
|
return above;
|
|
|
|
/*
|
|
* And now we really do have to make a choice about whether to
|
|
* round up or down. We'll do it by rounding to nearest,
|
|
* breaking ties by rounding up.
|
|
*/
|
|
if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
|
|
return above;
|
|
else
|
|
return below;
|
|
}
|
|
|
|
static void family_changed(GtkTreeSelection *treeselection, gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
GtkTreeModel *treemodel;
|
|
GtkTreeIter treeiter;
|
|
int minval;
|
|
fontinfo *info;
|
|
|
|
if (fs->inhibit_response) /* we made this change ourselves */
|
|
return;
|
|
|
|
if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
|
|
return;
|
|
|
|
gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
|
|
info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
|
|
info = update_for_intended_size(fs, info);
|
|
if (!info)
|
|
return; /* _shouldn't_ happen unless font list is completely funted */
|
|
if (!info->size)
|
|
fs->selsize = fs->intendedsize; /* font is scalable */
|
|
unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
|
|
1, false);
|
|
}
|
|
|
|
static void style_changed(GtkTreeSelection *treeselection, gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
GtkTreeModel *treemodel;
|
|
GtkTreeIter treeiter;
|
|
int minval;
|
|
fontinfo *info;
|
|
|
|
if (fs->inhibit_response) /* we made this change ourselves */
|
|
return;
|
|
|
|
if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
|
|
return;
|
|
|
|
gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
|
|
if (minval < 0)
|
|
return; /* somehow a charset heading got clicked */
|
|
info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
|
|
info = update_for_intended_size(fs, info);
|
|
if (!info)
|
|
return; /* _shouldn't_ happen unless font list is completely funted */
|
|
if (!info->size)
|
|
fs->selsize = fs->intendedsize; /* font is scalable */
|
|
unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
|
|
2, false);
|
|
}
|
|
|
|
static void size_changed(GtkTreeSelection *treeselection, gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
GtkTreeModel *treemodel;
|
|
GtkTreeIter treeiter;
|
|
int minval, size;
|
|
fontinfo *info;
|
|
|
|
if (fs->inhibit_response) /* we made this change ourselves */
|
|
return;
|
|
|
|
if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
|
|
return;
|
|
|
|
gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
|
|
info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
|
|
unifontsel_select_font(fs, info, info->size ? info->size : size, 3, true);
|
|
}
|
|
|
|
static void size_entry_changed(GtkEditable *ed, gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
const char *text;
|
|
int size;
|
|
|
|
if (fs->inhibit_response) /* we made this change ourselves */
|
|
return;
|
|
|
|
text = gtk_entry_get_text(GTK_ENTRY(ed));
|
|
size = atoi(text);
|
|
|
|
if (size > 0) {
|
|
assert(fs->selected->size == 0);
|
|
unifontsel_select_font(fs, fs->selected, size, 3, true);
|
|
}
|
|
}
|
|
|
|
static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
|
|
GtkTreeViewColumn *column, gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
GtkTreeIter iter;
|
|
int minval, newsize;
|
|
fontinfo *info, *newinfo;
|
|
char *newname;
|
|
|
|
if (fs->inhibit_response) /* we made this change ourselves */
|
|
return;
|
|
|
|
gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
|
|
gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
|
|
info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
|
|
if (info) {
|
|
int flags;
|
|
struct fontinfo_realname_find f;
|
|
|
|
newname = info->fontclass->canonify_fontname
|
|
(GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, true);
|
|
|
|
f.realname = newname;
|
|
f.flags = flags;
|
|
newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
|
|
|
|
sfree(newname);
|
|
if (!newinfo)
|
|
return; /* font name not in our index */
|
|
if (newinfo == info)
|
|
return; /* didn't change under canonification => not an alias */
|
|
unifontsel_select_font(fs, newinfo,
|
|
newinfo->size ? newinfo->size : newsize,
|
|
1, true);
|
|
}
|
|
}
|
|
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
static gint unifontsel_draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
unifont_drawctx dctx;
|
|
|
|
dctx.type = DRAWTYPE_CAIRO;
|
|
dctx.u.cairo.widget = widget;
|
|
dctx.u.cairo.cr = cr;
|
|
unifontsel_draw_preview_text_inner(&dctx, fs);
|
|
|
|
return true;
|
|
}
|
|
#else
|
|
static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
|
|
gpointer data)
|
|
{
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
|
|
#ifndef NO_BACKING_PIXMAPS
|
|
if (fs->preview_pixmap) {
|
|
gdk_draw_pixmap(gtk_widget_get_window(widget),
|
|
(gtk_widget_get_style(widget)->fg_gc
|
|
[gtk_widget_get_state(widget)]),
|
|
fs->preview_pixmap,
|
|
event->area.x, event->area.y,
|
|
event->area.x, event->area.y,
|
|
event->area.width, event->area.height);
|
|
}
|
|
#else
|
|
unifontsel_draw_preview_text(fs);
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
static gint unifontsel_configure_area(GtkWidget *widget,
|
|
GdkEventConfigure *event, gpointer data)
|
|
{
|
|
#ifndef NO_BACKING_PIXMAPS
|
|
unifontsel_internal *fs = (unifontsel_internal *)data;
|
|
int ox, oy, nx, ny, x, y;
|
|
|
|
/*
|
|
* Enlarge the pixmap, but never shrink it.
|
|
*/
|
|
ox = fs->preview_width;
|
|
oy = fs->preview_height;
|
|
x = event->width;
|
|
y = event->height;
|
|
if (x > ox || y > oy) {
|
|
if (fs->preview_pixmap)
|
|
gdk_pixmap_unref(fs->preview_pixmap);
|
|
|
|
nx = (x > ox ? x : ox);
|
|
ny = (y > oy ? y : oy);
|
|
fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
|
|
nx, ny, -1);
|
|
fs->preview_width = nx;
|
|
fs->preview_height = ny;
|
|
|
|
unifontsel_draw_preview_text(fs);
|
|
}
|
|
#endif
|
|
|
|
gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, false);
|
|
|
|
return true;
|
|
}
|
|
|
|
unifontsel *unifontsel_new(const char *wintitle)
|
|
{
|
|
unifontsel_internal *fs = snew(unifontsel_internal);
|
|
GtkWidget *table, *label, *w, *ww, *scroll;
|
|
GtkListStore *model;
|
|
GtkTreeViewColumn *column;
|
|
int lists_height, preview_height, font_width, style_width, size_width;
|
|
int i;
|
|
|
|
fs->inhibit_response = false;
|
|
fs->selected = NULL;
|
|
|
|
{
|
|
int width, height;
|
|
|
|
/*
|
|
* Invent some magic size constants.
|
|
*/
|
|
get_label_text_dimensions("Quite Long Font Name (Foundry)",
|
|
&width, &height);
|
|
font_width = width;
|
|
lists_height = 14 * height;
|
|
preview_height = 5 * height;
|
|
|
|
get_label_text_dimensions("Italic Extra Condensed", &width, &height);
|
|
style_width = width;
|
|
|
|
get_label_text_dimensions("48000", &width, &height);
|
|
size_width = width;
|
|
}
|
|
|
|
/*
|
|
* Create the dialog box and initialise the user-visible
|
|
* fields in the returned structure.
|
|
*/
|
|
fs->u.user_data = NULL;
|
|
fs->u.window = GTK_WINDOW(gtk_dialog_new());
|
|
gtk_window_set_title(fs->u.window, wintitle);
|
|
fs->u.cancel_button = gtk_dialog_add_button
|
|
(GTK_DIALOG(fs->u.window), STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL);
|
|
fs->u.ok_button = gtk_dialog_add_button
|
|
(GTK_DIALOG(fs->u.window), STANDARD_OK_LABEL, GTK_RESPONSE_OK);
|
|
gtk_widget_grab_default(fs->u.ok_button);
|
|
|
|
/*
|
|
* Now set up the internal fields, including in particular all
|
|
* the controls that actually allow the user to select fonts.
|
|
*/
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
table = gtk_grid_new();
|
|
gtk_grid_set_column_spacing(GTK_GRID(table), 8);
|
|
#else
|
|
table = gtk_table_new(8, 3, false);
|
|
gtk_table_set_col_spacings(GTK_TABLE(table), 8);
|
|
#endif
|
|
gtk_widget_show(table);
|
|
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
/* GtkAlignment has become deprecated and we use the "margin"
|
|
* property */
|
|
w = table;
|
|
g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
|
|
#elif GTK_CHECK_VERSION(2,4,0)
|
|
/* GtkAlignment seems to be the simplest way to put padding round things */
|
|
w = gtk_alignment_new(0, 0, 1, 1);
|
|
gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
|
|
gtk_container_add(GTK_CONTAINER(w), table);
|
|
gtk_widget_show(w);
|
|
#else
|
|
/* In GTK < 2.4, even that isn't available */
|
|
w = table;
|
|
#endif
|
|
|
|
gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
|
|
(GTK_DIALOG(fs->u.window))),
|
|
w, true, true, 0);
|
|
|
|
label = gtk_label_new_with_mnemonic("_Font:");
|
|
gtk_widget_show(label);
|
|
align_label_left(GTK_LABEL(label));
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
|
|
g_object_set(G_OBJECT(label), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
|
|
/*
|
|
* The Font list box displays only a string, but additionally
|
|
* stores two integers which give the limits within the
|
|
* tree234 of the font entries covered by this list entry.
|
|
*/
|
|
model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
|
|
w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
|
|
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), false);
|
|
gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
|
|
gtk_widget_show(w);
|
|
column = gtk_tree_view_column_new_with_attributes
|
|
("Font", gtk_cell_renderer_text_new(),
|
|
"text", 0, (char *)NULL);
|
|
gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
|
|
gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
|
|
g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
|
|
"changed", G_CALLBACK(family_changed), fs);
|
|
g_signal_connect(G_OBJECT(w), "row-activated",
|
|
G_CALLBACK(alias_resolve), fs);
|
|
|
|
scroll = gtk_scrolled_window_new(NULL, NULL);
|
|
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
|
|
GTK_SHADOW_IN);
|
|
gtk_container_add(GTK_CONTAINER(scroll), w);
|
|
gtk_widget_show(scroll);
|
|
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
|
|
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
|
|
gtk_widget_set_size_request(scroll, font_width, lists_height);
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), scroll, 0, 1, 1, 2);
|
|
g_object_set(G_OBJECT(scroll), "expand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
|
|
GTK_EXPAND | GTK_FILL, 0, 0);
|
|
#endif
|
|
fs->family_model = model;
|
|
fs->family_list = w;
|
|
|
|
label = gtk_label_new_with_mnemonic("_Style:");
|
|
gtk_widget_show(label);
|
|
align_label_left(GTK_LABEL(label));
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
|
|
g_object_set(G_OBJECT(label), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
|
|
/*
|
|
* The Style list box can contain insensitive elements (character
|
|
* set headings for server-side fonts), so we add an extra column
|
|
* to the list store to hold that information. Also, since GTK3 at
|
|
* least doesn't seem to display insensitive elements differently
|
|
* by default, we add a further column to change their style.
|
|
*/
|
|
model = gtk_list_store_new(5, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
|
|
G_TYPE_BOOLEAN, G_TYPE_INT);
|
|
w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
|
|
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), false);
|
|
gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
|
|
gtk_widget_show(w);
|
|
column = gtk_tree_view_column_new_with_attributes
|
|
("Style", gtk_cell_renderer_text_new(),
|
|
"text", 0, "sensitive", 3, "weight", 4, (char *)NULL);
|
|
gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
|
|
gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
|
|
g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
|
|
"changed", G_CALLBACK(style_changed), fs);
|
|
|
|
scroll = gtk_scrolled_window_new(NULL, NULL);
|
|
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
|
|
GTK_SHADOW_IN);
|
|
gtk_container_add(GTK_CONTAINER(scroll), w);
|
|
gtk_widget_show(scroll);
|
|
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
|
|
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
|
|
gtk_widget_set_size_request(scroll, style_width, lists_height);
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), scroll, 1, 1, 1, 2);
|
|
g_object_set(G_OBJECT(scroll), "expand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
|
|
GTK_EXPAND | GTK_FILL, 0, 0);
|
|
#endif
|
|
fs->style_model = model;
|
|
fs->style_list = w;
|
|
|
|
label = gtk_label_new_with_mnemonic("Si_ze:");
|
|
gtk_widget_show(label);
|
|
align_label_left(GTK_LABEL(label));
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
|
|
g_object_set(G_OBJECT(label), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
|
|
/*
|
|
* The Size label attaches primarily to a text input box so
|
|
* that the user can select a size of their choice. The list
|
|
* of available sizes is secondary.
|
|
*/
|
|
fs->size_entry = w = gtk_entry_new();
|
|
gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
|
|
gtk_widget_set_size_request(w, size_width, -1);
|
|
gtk_widget_show(w);
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), w, 2, 1, 1, 1);
|
|
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
|
|
fs);
|
|
|
|
model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
|
|
w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
|
|
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), false);
|
|
gtk_widget_show(w);
|
|
column = gtk_tree_view_column_new_with_attributes
|
|
("Size", gtk_cell_renderer_text_new(),
|
|
"text", 0, (char *)NULL);
|
|
gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
|
|
gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
|
|
g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
|
|
"changed", G_CALLBACK(size_changed), fs);
|
|
|
|
scroll = gtk_scrolled_window_new(NULL, NULL);
|
|
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
|
|
GTK_SHADOW_IN);
|
|
gtk_container_add(GTK_CONTAINER(scroll), w);
|
|
gtk_widget_show(scroll);
|
|
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
|
|
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), scroll, 2, 2, 1, 1);
|
|
g_object_set(G_OBJECT(scroll), "expand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
|
|
GTK_EXPAND | GTK_FILL, 0, 0);
|
|
#endif
|
|
fs->size_model = model;
|
|
fs->size_list = w;
|
|
|
|
/*
|
|
* Preview widget.
|
|
*/
|
|
fs->preview_area = gtk_drawing_area_new();
|
|
#ifndef NO_BACKING_PIXMAPS
|
|
fs->preview_pixmap = NULL;
|
|
#endif
|
|
fs->preview_width = 0;
|
|
fs->preview_height = 0;
|
|
fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
|
|
fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
|
|
fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
|
|
#if !GTK_CHECK_VERSION(3,0,0)
|
|
gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
|
|
false, false);
|
|
gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
|
|
false, false);
|
|
#endif
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
g_signal_connect(G_OBJECT(fs->preview_area), "draw",
|
|
G_CALLBACK(unifontsel_draw_area), fs);
|
|
#else
|
|
g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
|
|
G_CALLBACK(unifontsel_expose_area), fs);
|
|
#endif
|
|
g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
|
|
G_CALLBACK(unifontsel_configure_area), fs);
|
|
gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
|
|
gtk_widget_show(fs->preview_area);
|
|
ww = fs->preview_area;
|
|
w = gtk_frame_new(NULL);
|
|
gtk_container_add(GTK_CONTAINER(w), ww);
|
|
gtk_widget_show(w);
|
|
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
/* GtkAlignment has become deprecated and we use the "margin"
|
|
* property */
|
|
g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
|
|
#elif GTK_CHECK_VERSION(2,4,0)
|
|
ww = w;
|
|
/* GtkAlignment seems to be the simplest way to put padding round things */
|
|
w = gtk_alignment_new(0, 0, 1, 1);
|
|
gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
|
|
gtk_container_add(GTK_CONTAINER(w), ww);
|
|
gtk_widget_show(w);
|
|
#endif
|
|
|
|
ww = w;
|
|
w = gtk_frame_new("Preview of font");
|
|
gtk_container_add(GTK_CONTAINER(w), ww);
|
|
gtk_widget_show(w);
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), w, 0, 3, 3, 1);
|
|
g_object_set(G_OBJECT(w), "expand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
|
|
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
|
|
#endif
|
|
|
|
/*
|
|
* We only provide the checkboxes for client- and server-side
|
|
* fonts if we have the X11 back end available, because that's the
|
|
* only situation in which more than one class of font is
|
|
* available anyway.
|
|
*/
|
|
fs->n_filter_buttons = 0;
|
|
#ifndef NOT_X_WINDOWS
|
|
w = gtk_check_button_new_with_label("Show client-side fonts");
|
|
g_object_set_data(G_OBJECT(w), "user-data",
|
|
GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
|
|
g_signal_connect(G_OBJECT(w), "toggled",
|
|
G_CALLBACK(unifontsel_button_toggled), fs);
|
|
gtk_widget_show(w);
|
|
fs->filter_buttons[fs->n_filter_buttons++] = w;
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), w, 0, 4, 3, 1);
|
|
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
w = gtk_check_button_new_with_label("Show server-side fonts");
|
|
g_object_set_data(G_OBJECT(w), "user-data",
|
|
GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
|
|
g_signal_connect(G_OBJECT(w), "toggled",
|
|
G_CALLBACK(unifontsel_button_toggled), fs);
|
|
gtk_widget_show(w);
|
|
fs->filter_buttons[fs->n_filter_buttons++] = w;
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), w, 0, 5, 3, 1);
|
|
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
w = gtk_check_button_new_with_label("Show server-side font aliases");
|
|
g_object_set_data(G_OBJECT(w), "user-data",
|
|
GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
|
|
g_signal_connect(G_OBJECT(w), "toggled",
|
|
G_CALLBACK(unifontsel_button_toggled), fs);
|
|
gtk_widget_show(w);
|
|
fs->filter_buttons[fs->n_filter_buttons++] = w;
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), w, 0, 6, 3, 1);
|
|
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
#endif /* NOT_X_WINDOWS */
|
|
w = gtk_check_button_new_with_label("Show non-monospaced fonts");
|
|
g_object_set_data(G_OBJECT(w), "user-data",
|
|
GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
|
|
g_signal_connect(G_OBJECT(w), "toggled",
|
|
G_CALLBACK(unifontsel_button_toggled), fs);
|
|
gtk_widget_show(w);
|
|
fs->filter_buttons[fs->n_filter_buttons++] = w;
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_grid_attach(GTK_GRID(table), w, 0, 7, 3, 1);
|
|
g_object_set(G_OBJECT(w), "hexpand", true, (const char *)NULL);
|
|
#else
|
|
gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
|
|
#endif
|
|
|
|
assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
|
|
fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
|
|
FONTFLAG_SERVERALIAS;
|
|
unifontsel_set_filter_buttons(fs);
|
|
|
|
/*
|
|
* Go and find all the font names, and set up our master font
|
|
* list.
|
|
*/
|
|
fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
|
|
fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
|
|
for (i = 0; i < lenof(unifont_types); i++)
|
|
unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
|
|
unifontsel_add_entry, fs);
|
|
|
|
/*
|
|
* And set up the initial font names list.
|
|
*/
|
|
unifontsel_setup_familylist(fs);
|
|
|
|
fs->selsize = fs->intendedsize = 13; /* random default */
|
|
gtk_widget_set_sensitive(fs->u.ok_button, false);
|
|
|
|
return &fs->u;
|
|
}
|
|
|
|
void unifontsel_destroy(unifontsel *fontsel)
|
|
{
|
|
unifontsel_internal *fs = container_of(fontsel, unifontsel_internal, u);
|
|
fontinfo *info;
|
|
|
|
#ifndef NO_BACKING_PIXMAPS
|
|
if (fs->preview_pixmap)
|
|
gdk_pixmap_unref(fs->preview_pixmap);
|
|
#endif
|
|
|
|
freetree234(fs->fonts_by_selorder);
|
|
while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
|
|
sfree(info);
|
|
freetree234(fs->fonts_by_realname);
|
|
|
|
gtk_widget_destroy(GTK_WIDGET(fs->u.window));
|
|
sfree(fs);
|
|
}
|
|
|
|
void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
|
|
{
|
|
unifontsel_internal *fs = container_of(fontsel, unifontsel_internal, u);
|
|
int i, start, end, size, flags;
|
|
const char *fontname2 = NULL;
|
|
fontinfo *info;
|
|
|
|
/*
|
|
* Provide a default if given an empty or null font name.
|
|
*/
|
|
if (!fontname || !*fontname)
|
|
fontname = DEFAULT_GTK_FONT;
|
|
|
|
/*
|
|
* Call the canonify_fontname function.
|
|
*/
|
|
fontname = unifont_do_prefix(fontname, &start, &end);
|
|
for (i = start; i < end; i++) {
|
|
fontname2 = unifont_types[i]->canonify_fontname
|
|
(GTK_WIDGET(fs->u.window), fontname, &size, &flags, false);
|
|
if (fontname2)
|
|
break;
|
|
}
|
|
if (i == end)
|
|
return; /* font name not recognised */
|
|
|
|
/*
|
|
* Now look up the canonified font name in our index.
|
|
*/
|
|
{
|
|
struct fontinfo_realname_find f;
|
|
f.realname = fontname2;
|
|
f.flags = flags;
|
|
info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
|
|
}
|
|
|
|
/*
|
|
* If we've found the font, and its size field is either
|
|
* correct or zero (the latter indicating a scalable font),
|
|
* then we're done. Otherwise, try looking up the original
|
|
* font name instead.
|
|
*/
|
|
if (!info || (info->size != size && info->size != 0)) {
|
|
struct fontinfo_realname_find f;
|
|
f.realname = fontname;
|
|
f.flags = flags;
|
|
|
|
info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
|
|
if (!info || info->size != size)
|
|
return; /* font name not in our index */
|
|
}
|
|
|
|
/*
|
|
* Now we've got a fontinfo structure and a font size, so we
|
|
* know everything we need to fill in all the fields in the
|
|
* dialog.
|
|
*/
|
|
unifontsel_select_font(fs, info, size, 0, true);
|
|
}
|
|
|
|
char *unifontsel_get_name(unifontsel *fontsel)
|
|
{
|
|
unifontsel_internal *fs = container_of(fontsel, unifontsel_internal, u);
|
|
char *name;
|
|
|
|
if (!fs->selected)
|
|
return NULL;
|
|
|
|
if (fs->selected->size == 0) {
|
|
name = fs->selected->fontclass->scale_fontname
|
|
(GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
|
|
if (name) {
|
|
char *ret = dupcat(fs->selected->fontclass->prefix, ":", name);
|
|
sfree(name);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return dupcat(fs->selected->fontclass->prefix, ":",
|
|
fs->selected->realname);
|
|
}
|
|
|
|
#endif /* GTK_CHECK_VERSION(2,0,0) */
|