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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Foundation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "gfxPlatformQt.h"
#include "gfxTypes.h"
#include "gfxQtFonts.h"
#include "qdebug.h"
#include "qrect.h"
#include <locale.h>
#include <QFont>
#include <QFontMetrics>
#include <QFontMetricsF>
#include "cairo-ft.h"
#include <freetype/tttables.h>
#include "nsStyleConsts.h"
/**
* gfxQtFontGroup
*/
static int
FFRECountHyphens (const nsAString &aFFREName)
{
int h = 0;
PRInt32 hyphen = 0;
while ((hyphen = aFFREName.FindChar('-', hyphen)) >= 0) {
++h;
++hyphen;
}
return h;
}
PRBool
gfxQtFontGroup::FontCallback (const nsAString& fontName,
const nsACString& genericName,
void *closure)
{
nsStringArray *sa = static_cast<nsStringArray*>(closure);
// We ignore prefs that have three hypens since they are X style prefs.
if (genericName.Length() && FFRECountHyphens(fontName) >= 3)
return PR_TRUE;
if (sa->IndexOf(fontName) < 0) {
sa->AppendString(fontName);
}
return PR_TRUE;
}
/**
* Look up the font in the gfxFont cache. If we don't find it, create one.
* In either case, add a ref, append it to the aFonts array, and return it ---
* except for OOM in which case we do nothing and return null.
*/
static already_AddRefed<gfxQtFont>
GetOrMakeFont(const nsAString& aName, const gfxFontStyle *aStyle)
{
nsRefPtr<gfxFont> font = gfxFontCache::GetCache()->Lookup(aName, aStyle);
if (!font) {
font = new gfxQtFont(aName, aStyle);
if (!font)
return nsnull;
gfxFontCache::GetCache()->AddNew(font);
}
gfxFont *f = nsnull;
font.swap(f);
return static_cast<gfxQtFont *>(f);
}
gfxQtFontGroup::gfxQtFontGroup (const nsAString& families,
const gfxFontStyle *aStyle)
: gfxFontGroup(families, aStyle)
{
// check for WarpSans and as we cannot display that (yet), replace
// it with Workplace Sans
int pos = 0;
if ((pos = mFamilies.Find("WarpSans", PR_FALSE, 0, -1)) > -1) {
mFamilies.Replace(pos, 8, NS_LITERAL_STRING("Workplace Sans"));
}
nsStringArray familyArray;
ForEachFont(FontCallback, &familyArray);
// To be able to easily search for glyphs in other fonts, append a few good
// replacement candidates to the list. The best ones are the Unicode fonts that
// are set up, and if the user was so clever to set up the User Defined fonts,
// then these are probable candidates, too.
nsString fontString;
gfxPlatform::GetPlatform()->GetPrefFonts("x-unicode", fontString, PR_FALSE);
ForEachFont(fontString, NS_LITERAL_CSTRING("x-unicode"), FontCallback, &familyArray);
gfxPlatform::GetPlatform()->GetPrefFonts("x-user-def", fontString, PR_FALSE);
ForEachFont(fontString, NS_LITERAL_CSTRING("x-user-def"), FontCallback, &familyArray);
// Should append some default font if there are no available fonts.
// Let's use Helv which should be available on any OS/2 system; if
// it's not there, Fontconfig replaces it with something else...
if (familyArray.Count() == 0) {
familyArray.AppendString(NS_LITERAL_STRING("Helv"));
}
for (int i = 0; i < familyArray.Count(); i++) {
nsRefPtr<gfxQtFont> font = GetOrMakeFont(*familyArray[i], &mStyle);
if (font) {
mFonts.AppendElement(font);
}
}
}
gfxQtFontGroup::~gfxQtFontGroup()
{
}
gfxFontGroup *
gfxQtFontGroup::Copy(const gfxFontStyle *aStyle)
{
return new gfxQtFontGroup(mFamilies, aStyle);
}
/**
* We use this to append an LTR or RTL Override character to the start of the
* string. This forces Pango to honour our direction even if there are neutral
* characters in the string.
*/
static PRInt32 AppendDirectionalIndicatorUTF8(PRBool aIsRTL, nsACString& aString)
{
static const PRUnichar overrides[2][2] = { { 0x202d, 0 }, { 0x202e, 0 }}; // LRO, RLO
AppendUTF16toUTF8(overrides[aIsRTL], aString);
return 3; // both overrides map to 3 bytes in UTF8
}
gfxTextRun *gfxQtFontGroup::MakeTextRun(const PRUnichar* aString, PRUint32 aLength,
const Parameters* aParams, PRUint32 aFlags)
{
gfxTextRun *textRun = gfxTextRun::Create(aParams, aString, aLength, this, aFlags);
if (!textRun)
return nsnull;
mEnableKerning = !(aFlags & gfxTextRunFactory::TEXT_OPTIMIZE_SPEED);
textRun->RecordSurrogates(aString);
nsCAutoString utf8;
PRInt32 headerLen = AppendDirectionalIndicatorUTF8(textRun->IsRightToLeft(), utf8);
AppendUTF16toUTF8(Substring(aString, aString + aLength), utf8);
InitTextRun(textRun, (PRUint8 *)utf8.get(), utf8.Length(), headerLen);
textRun->FetchGlyphExtents(aParams->mContext);
return textRun;
}
gfxTextRun *gfxQtFontGroup::MakeTextRun(const PRUint8* aString, PRUint32 aLength,
const Parameters* aParams, PRUint32 aFlags)
{
NS_ASSERTION(aFlags & TEXT_IS_8BIT, "8bit should have been set");
gfxTextRun *textRun = gfxTextRun::Create(aParams, aString, aLength, this, aFlags);
if (!textRun)
return nsnull;
mEnableKerning = !(aFlags & gfxTextRunFactory::TEXT_OPTIMIZE_SPEED);
const char *chars = reinterpret_cast<const char *>(aString);
PRBool isRTL = textRun->IsRightToLeft();
if ((aFlags & TEXT_IS_ASCII) && !isRTL) {
// We don't need to send an override character here, the characters must be all
// LTR
InitTextRun(textRun, (PRUint8 *)chars, aLength, 0);
} else {
// Although chars in not necessarily ASCII (as it may point to the low
// bytes of any UCS-2 characters < 256), NS_ConvertASCIItoUTF16 seems
// to DTRT.
NS_ConvertASCIItoUTF16 unicodeString(chars, aLength);
nsCAutoString utf8;
PRInt32 headerLen = AppendDirectionalIndicatorUTF8(isRTL, utf8);
AppendUTF16toUTF8(unicodeString, utf8);
InitTextRun(textRun, (PRUint8 *)utf8.get(), utf8.Length(), headerLen);
}
textRun->FetchGlyphExtents(aParams->mContext);
return textRun;
}
void gfxQtFontGroup::InitTextRun(gfxTextRun *aTextRun, const PRUint8 *aUTF8Text,
PRUint32 aUTF8Length,
PRUint32 aUTF8HeaderLength)
{
CreateGlyphRunsFT(aTextRun, aUTF8Text + aUTF8HeaderLength,
aUTF8Length - aUTF8HeaderLength);
}
// Helper function to return the leading UTF-8 character in a char pointer
// as 32bit number. Also sets the length of the current character (i.e. the
// offset to the next one) in the second argument
PRUint32 getUTF8CharAndNext(const PRUint8 *aString, PRUint8 *aLength)
{
*aLength = 1;
if (aString[0] < 0x80) { // normal 7bit ASCII char
return aString[0];
}
if ((aString[0] >> 5) == 6) { // two leading ones -> two bytes
*aLength = 2;
return ((aString[0] & 0x1F) << 6) + (aString[1] & 0x3F);
}
if ((aString[0] >> 4) == 14) { // three leading ones -> three bytes
*aLength = 3;
return ((aString[0] & 0x0F) << 12) + ((aString[1] & 0x3F) << 6) +
(aString[2] & 0x3F);
}
if ((aString[0] >> 4) == 15) { // four leading ones -> four bytes
*aLength = 4;
return ((aString[0] & 0x07) << 18) + ((aString[1] & 0x3F) << 12) +
((aString[2] & 0x3F) << 6) + (aString[3] & 0x3F);
}
return aString[0];
}
void gfxQtFontGroup::CreateGlyphRunsFT(gfxTextRun *aTextRun, const PRUint8 *aUTF8,
PRUint32 aUTF8Length)
{
PRUint32 fontlistLast = FontListLength()-1;
gfxQtFont *font0 = GetFontAt(0);
const PRUint8 *p = aUTF8;
PRUint32 utf16Offset = 0;
gfxTextRun::CompressedGlyph g;
const PRUint32 appUnitsPerDevUnit = aTextRun->GetAppUnitsPerDevUnit();
aTextRun->AddGlyphRun(font0, 0);
// a textRun likely has the same font for most of the characters, so we can
// lock it before the loop for efficiency
FT_Face face0 = font0->GetQFont().freetypeFace();
while (p < aUTF8 + aUTF8Length) {
PRBool glyphFound = PR_FALSE;
// convert UTF-8 character and step to the next one in line
PRUint8 chLen;
PRUint32 ch = getUTF8CharAndNext(p, &chLen);
p += chLen; // move to next char
if (ch == 0) {
// treat this null byte as a missing glyph, don't create a glyph for it
aTextRun->SetMissingGlyph(utf16Offset, 0);
} else {
// Try to get a glyph from all fonts available to us.
// Once we found it in one of the fonts we quit the loop early.
// If we don't find the glyph, we set the missing glyph symbol after
// trying the last font.
for (PRUint32 i = 0; i <= fontlistLast; i++) {
gfxQtFont *font = font0;
FT_Face face = face0;
if (i > 0) {
font = GetFontAt(i);
face = font->GetQFont().freetypeFace();
}
// select the current font into the text run
aTextRun->AddGlyphRun(font, utf16Offset);
NS_ASSERTION(!IsInvalidChar(ch), "Invalid char detected");
FT_UInt gid = FT_Get_Char_Index(face, ch); // find the glyph id
PRInt32 advance = 0;
if (gid == font->GetSpaceGlyph()) {
advance = (int)(font->GetMetrics().spaceWidth * appUnitsPerDevUnit);
} else if (gid == 0) {
advance = -1; // trigger the missing glyphs case below
} else {
// find next character and its glyph -- in case they exist
// and exist in the current font face -- to compute kerning
PRUint32 chNext = 0;
FT_UInt gidNext = 0;
FT_Pos lsbDeltaNext = 0;
if (mEnableKerning && FT_HAS_KERNING(face) && p < aUTF8 + aUTF8Length) {
chNext = getUTF8CharAndNext(p, &chLen);
if (chNext) {
gidNext = FT_Get_Char_Index(face, chNext);
if (gidNext && gidNext != font->GetSpaceGlyph()) {
FT_Load_Glyph(face, gidNext, FT_LOAD_DEFAULT);
lsbDeltaNext = face->glyph->lsb_delta;
}
}
}
// now load the current glyph
FT_Load_Glyph(face, gid, FT_LOAD_DEFAULT); // load glyph into the slot
advance = face->glyph->advance.x;
// now add kerning to the current glyph's advance
if (chNext && gidNext) {
FT_Vector kerning;
FT_Get_Kerning(face, gid, gidNext, FT_KERNING_DEFAULT, &kerning);
advance += kerning.x;
if (face->glyph->rsb_delta - lsbDeltaNext >= 32) {
advance -= 64;
} else if (face->glyph->rsb_delta - lsbDeltaNext < -32) {
advance += 64;
}
}
// now apply unit conversion and scaling
advance = (advance >> 6) * appUnitsPerDevUnit;
}
if (advance >= 0 &&
gfxTextRun::CompressedGlyph::IsSimpleAdvance(advance) &&
gfxTextRun::CompressedGlyph::IsSimpleGlyphID(gid))
{
aTextRun->SetSimpleGlyph(utf16Offset,
g.SetSimpleGlyph(advance, gid));
glyphFound = PR_TRUE;
} else if (gid == 0) {
// gid = 0 only happens when the glyph is missing from the font
if (i == fontlistLast) {
// set the missing glyph only when it's missing from the very
// last font
aTextRun->SetMissingGlyph(utf16Offset, ch);
}
glyphFound = PR_FALSE;
} else {
gfxTextRun::DetailedGlyph details;
details.mGlyphID = gid;
NS_ASSERTION(details.mGlyphID == gid, "Seriously weird glyph ID detected!");
details.mAdvance = advance;
details.mXOffset = 0;
details.mYOffset = 0;
g.SetComplex(aTextRun->IsClusterStart(utf16Offset), PR_TRUE, 1);
aTextRun->SetGlyphs(utf16Offset, g, &details);
glyphFound = PR_TRUE;
}
if (glyphFound) {
break;
}
}
} // for all fonts
NS_ASSERTION(!IS_SURROGATE(ch), "Surrogates shouldn't appear in UTF8");
if (ch >= 0x10000) {
// This character is a surrogate pair in UTF16
++utf16Offset;
}
++utf16Offset;
}
}
/**
* gfxQtFont
*/
gfxQtFont::gfxQtFont(const nsAString &aName,
const gfxFontStyle *aFontStyle)
: gfxFont(aName, aFontStyle),
mQFont(nsnull),
mCairoFont(nsnull),
mFontFace(nsnull),
mHasSpaceGlyph(PR_FALSE),
mSpaceGlyph(0),
mHasMetrics(PR_FALSE),
mAdjustedSize(0)
{
QFont::Style style = QFont::StyleNormal;
// add style to pattern
switch (GetStyle()->style) {
case FONT_STYLE_ITALIC:
style = QFont::StyleItalic;
break;
case FONT_STYLE_OBLIQUE:
style = QFont::StyleOblique;
break;
case FONT_STYLE_NORMAL:
default:
style = QFont::StyleNormal;
}
// PRInt8 weight, offset;
// GetStyle()->ComputeWeightAndOffset(&weight, &offset);
PRInt16 weight = QFont::Normal;
switch (GetStyle()->weight) {
case NS_STYLE_FONT_WEIGHT_NORMAL:
weight = QFont::Normal;
case NS_STYLE_FONT_WEIGHT_BOLD:
weight = QFont::Bold;
case NS_STYLE_FONT_WEIGHT_BOLDER:
weight = QFont::DemiBold;
case NS_STYLE_FONT_WEIGHT_LIGHTER:
weight = QFont::Light;
default:
weight = QFont::Normal;
}
mQFont = new QFont();
mQFont->setFamily(QString(NS_ConvertUTF16toUTF8(mName).get()));
mQFont->setWeight(weight);
mQFont->setStyle(style);
mQFont->setPixelSize (mAdjustedSize ? mAdjustedSize : GetStyle()->size);
}
gfxQtFont::~gfxQtFont()
{
if (mQFont) {
delete mQFont;
}
if (mCairoFont) {
cairo_scaled_font_destroy(mCairoFont);
}
if (mFontFace) {
cairo_font_face_destroy(mFontFace);
}
mQFont = nsnull;
mCairoFont = nsnull;
mFontFace = nsnull;
}
// rounding and truncation functions for a Freetype floating point number
// (FT26Dot6) stored in a 32bit integer with high 26 bits for the integer
// part and low 6 bits for the fractional part.
#define MOZ_FT_ROUND(x) (((x) + 32) & ~63) // 63 = 2^6 - 1
#define MOZ_FT_TRUNC(x) ((x) >> 6)
#define CONVERT_DESIGN_UNITS_TO_PIXELS(v, s) \
MOZ_FT_TRUNC(MOZ_FT_ROUND(FT_MulFix((v) , (s))))
const gfxFont::Metrics&
gfxQtFont::GetMetrics()
{
if (mHasMetrics)
return mMetrics;
mMetrics.emHeight = GetStyle()->size;
QFontMetrics fontMetrics( *mQFont );
FT_Face face = mQFont->freetypeFace();
if (!face) {
// Abort here already, otherwise we crash in the following
// this can happen if the font-size requested is zero.
// The metrics will be incomplete, but then we don't care.
return mMetrics;
}
// face->glyph->metrics.width doesn't work for spaces, use advance.x instead
mMetrics.spaceWidth = fontMetrics.width( QChar(' ') );
// save the space glyph
mSpaceGlyph = GetSpaceGlyph();
mMetrics.xHeight = fontMetrics.xHeight();
mMetrics.aveCharWidth = fontMetrics.averageCharWidth();
// compute an adjusted size if we need to
if (mAdjustedSize == 0 && GetStyle()->sizeAdjust != 0) {
gfxFloat aspect = mMetrics.xHeight / GetStyle()->size;
mAdjustedSize = GetStyle()->GetAdjustedSize(aspect);
mMetrics.emHeight = mAdjustedSize;
} else
mMetrics.emHeight = fontMetrics.height();
if (face) {
mMetrics.maxAdvance = face->size->metrics.max_advance / 64.0; // 26.6
float val;
TT_OS2 *os2 = (TT_OS2 *) FT_Get_Sfnt_Table(face, ft_sfnt_os2);
if (os2 && os2->ySuperscriptYOffset) {
val = CONVERT_DESIGN_UNITS_TO_PIXELS(os2->ySuperscriptYOffset,
face->size->metrics.y_scale);
mMetrics.superscriptOffset = PR_MAX(1, val);
} else {
mMetrics.superscriptOffset = mMetrics.xHeight;
}
if (os2 && os2->ySubscriptYOffset) {
val = CONVERT_DESIGN_UNITS_TO_PIXELS(os2->ySubscriptYOffset,
face->size->metrics.y_scale);
// some fonts have the incorrect sign..
val = (val < 0) ? -val : val;
mMetrics.subscriptOffset = PR_MAX(1, val);
} else {
mMetrics.subscriptOffset = mMetrics.xHeight;
}
} else {
mMetrics.superscriptOffset = mMetrics.xHeight;
mMetrics.subscriptOffset = mMetrics.xHeight;
}
mMetrics.strikeoutOffset = fontMetrics.strikeOutPos();
mMetrics.strikeoutSize = fontMetrics.lineWidth();
mMetrics.aveCharWidth = fontMetrics.averageCharWidth();
// seems that underlineOffset really has to be negative
mMetrics.underlineOffset = -fontMetrics.underlinePos();
mMetrics.underlineSize = fontMetrics.lineWidth();
// descents are negative in FT but Thebes wants them positive
mMetrics.maxAscent = fontMetrics.ascent();
mMetrics.maxDescent = fontMetrics.descent();
mMetrics.emAscent = mMetrics.maxAscent;
mMetrics.emDescent = mMetrics.maxDescent;
mMetrics.maxHeight = mMetrics.maxAscent + mMetrics.maxDescent;
mMetrics.maxAdvance = fontMetrics.maxWidth();
// leading are not available directly (only for WinFNTs)
double lineHeight = mMetrics.maxAscent + mMetrics.maxDescent;
if (lineHeight > mMetrics.emHeight) {
mMetrics.internalLeading = lineHeight - mMetrics.emHeight;
} else {
mMetrics.internalLeading = 0;
}
mMetrics.externalLeading = 0; // normal value for OS/2 fonts, too
SanitizeMetrics(&mMetrics, PR_FALSE);
#ifdef DEBUG_thebes_1
printf("gfxOS2Font[%#x]::GetMetrics():\n"
" %s (%s)\n"
" emHeight=%f == %f=gfxFont::style.size == %f=adjSz\n"
" maxHeight=%f xHeight=%f\n"
" aveCharWidth=%f==xWidth spaceWidth=%f\n"
" supOff=%f SubOff=%f strOff=%f strSz=%f\n"
" undOff=%f undSz=%f intLead=%f extLead=%f\n"
" emAsc=%f emDesc=%f maxH=%f\n"
" maxAsc=%f maxDes=%f maxAdv=%f\n",
(unsigned)this,
NS_LossyConvertUTF16toASCII(mName).get(),
os2 && os2->version != 0xFFFF ? "has OS/2 table" : "no OS/2 table!",
mMetrics.emHeight, GetStyle()->size, mAdjustedSize,
mMetrics.maxHeight, mMetrics.xHeight,
mMetrics.aveCharWidth, mMetrics.spaceWidth,
mMetrics.superscriptOffset, mMetrics.subscriptOffset,
mMetrics.strikeoutOffset, mMetrics.strikeoutSize,
mMetrics.underlineOffset, mMetrics.underlineSize,
mMetrics.internalLeading, mMetrics.externalLeading,
mMetrics.emAscent, mMetrics.emDescent, mMetrics.maxHeight,
mMetrics.maxAscent, mMetrics.maxDescent, mMetrics.maxAdvance
);
#endif
mHasMetrics = PR_TRUE;
return mMetrics;
}
nsString
gfxQtFont::GetUniqueName()
{
return mName;
}
PRUint32 gfxQtFont::GetSpaceGlyph ()
{
NS_ASSERTION (GetStyle ()->size != 0,
"forgot to short-circuit a text run with zero-sized font?");
if(!mHasSpaceGlyph)
{
FT_UInt gid = 0; // glyph ID
FT_Face face = mQFont->freetypeFace();
gid = FT_Get_Char_Index(face, ' ');
FT_Load_Glyph(face, gid, FT_LOAD_DEFAULT);
mSpaceGlyph = gid;
mHasSpaceGlyph = PR_TRUE;
}
return mSpaceGlyph;
}
static const PRInt8 nFcWeight = 2; // 10; // length of weight list
static const int fcWeight[] = {
//FC_WEIGHT_THIN,
//FC_WEIGHT_EXTRALIGHT, // == FC_WEIGHT_ULTRALIGHT
//FC_WEIGHT_LIGHT,
//FC_WEIGHT_BOOK,
FC_WEIGHT_REGULAR, // == FC_WEIGHT_NORMAL
//FC_WEIGHT_MEDIUM,
//FC_WEIGHT_DEMIBOLD, // == FC_WEIGHT_SEMIBOLD
FC_WEIGHT_BOLD,
//FC_WEIGHT_EXTRABOLD, // == FC_WEIGHT_ULTRABOLD
//FC_WEIGHT_BLACK // == FC_WEIGHT_HEAVY
};
cairo_font_face_t *gfxQtFont::CairoFontFace(QFont *aFont)
{
#ifdef DEBUG_thebes_2
printf("gfxOS2Font[%#x]::CairoFontFace()\n", (unsigned)this);
#endif
if (!mFontFace) {
#ifdef DEBUG_thebes
printf("gfxOS2Font[%#x]::CairoFontFace(): create it for %s, %f\n",
(unsigned)this, NS_LossyConvertUTF16toASCII(mName).get(), GetStyle()->size);
#endif
if (aFont) {
FT_Face ftFace = aFont->freetypeFace();
mFontFace = cairo_ft_font_face_create_for_ft_face( ftFace, 0 );
if (mFontFace)
return mFontFace;
}
FcPattern *fcPattern = FcPatternCreate();
// add (family) name to pattern
// (the conversion should work, font names don't contain high bit chars)
FcPatternAddString(fcPattern, FC_FAMILY,
(FcChar8 *)NS_LossyConvertUTF16toASCII(mName).get());
// adjust font weight using the offset
// The requirements outlined in gfxFont.h are difficult to meet without
// having a table of available font weights, so we map the gfxFont
// weight to possible FontConfig weights.
PRInt8 weight, offset;
GetStyle()->ComputeWeightAndOffset(&weight, &offset);
// gfxFont weight FC weight
// 400 80
// 700 200
PRInt16 fcW = 40 * weight - 80; // match gfxFont weight to base FC weight
// find the correct weight in the list
PRInt8 i = 0;
while (i < nFcWeight && fcWeight[i] < fcW) {
i++;
}
// add the offset, but observe the available number of weights
i += offset;
if (i < 0) {
i = 0;
} else if (i >= nFcWeight) {
i = nFcWeight - 1;
}
fcW = fcWeight[i];
// add weight to pattern
FcPatternAddInteger(fcPattern, FC_WEIGHT, fcW);
PRUint8 fcProperty;
// add style to pattern
switch (GetStyle()->style) {
case FONT_STYLE_ITALIC:
fcProperty = FC_SLANT_ITALIC;
break;
case FONT_STYLE_OBLIQUE:
fcProperty = FC_SLANT_OBLIQUE;
break;
case FONT_STYLE_NORMAL:
default:
fcProperty = FC_SLANT_ROMAN;
}
FcPatternAddInteger(fcPattern, FC_SLANT, fcProperty);
// add the size we want
FcPatternAddDouble(fcPattern, FC_PIXEL_SIZE,
mAdjustedSize ? mAdjustedSize : GetStyle()->size);
// finally find a matching font
FcResult fcRes;
FcPattern *fcMatch = FcFontMatch(NULL, fcPattern, &fcRes);
FcPatternDestroy(fcPattern);
if (mName == NS_LITERAL_STRING("Workplace Sans") && fcW >= FC_WEIGHT_DEMIBOLD) {
// if we are dealing with Workplace Sans and want a bold font, we
// need to artificially embolden it (no bold counterpart yet)
FcPatternAddBool(fcMatch, FC_EMBOLDEN, FcTrue);
}
// and ask cairo to return a font face for this
mFontFace = cairo_ft_font_face_create_for_pattern(fcMatch);
FcPatternDestroy(fcMatch);
}
NS_ASSERTION(mFontFace, "Failed to make font face");
return mFontFace;
}
cairo_scaled_font_t*
gfxQtFont::CreateScaledFont(cairo_t *aCR, cairo_matrix_t *aCTM, QFont &aQFont)
{
double size = mAdjustedSize ? mAdjustedSize : GetStyle()->size;
cairo_matrix_t fontMatrix;
cairo_matrix_init_scale(&fontMatrix, size, size);
cairo_font_options_t *fontOptions = cairo_font_options_create();
cairo_scaled_font_t* scaledFont =
cairo_scaled_font_create( CairoFontFace(&aQFont),
// cairo_scaled_font_create( CairoFontFace(), // This makes fonts working almost perfect
&fontMatrix,
aCTM,
fontOptions);
cairo_font_options_destroy(fontOptions);
return scaledFont;
}
PRBool
gfxQtFont::SetupCairoFont(gfxContext *aContext)
{
cairo_t *cr = aContext->GetCairo();
cairo_matrix_t currentCTM;
cairo_get_matrix(cr, &currentCTM);
if (mCairoFont) {
// Need to validate that its CTM is OK
cairo_matrix_t fontCTM;
cairo_scaled_font_get_ctm(mCairoFont, &fontCTM);
if (fontCTM.xx != currentCTM.xx || fontCTM.yy != currentCTM.yy ||
fontCTM.xy != currentCTM.xy || fontCTM.yx != currentCTM.yx) {
// Just recreate it from scratch, simplest way
cairo_scaled_font_destroy(mCairoFont);
mCairoFont = nsnull;
}
}
if (!mCairoFont) {
mCairoFont = CreateScaledFont(cr, &currentCTM, *mQFont);
return PR_FALSE;
}
if (cairo_scaled_font_status(mCairoFont) != CAIRO_STATUS_SUCCESS) {
// Don't cairo_set_scaled_font as that would propagate the error to
// the cairo_t, precluding any further drawing.
return PR_FALSE;
}
cairo_set_scaled_font(cr, mCairoFont);
return PR_TRUE;
}

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@ -1,148 +0,0 @@
#
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is mozilla.org code.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 1998
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# John C. Griggs <johng@corel.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
DEPTH = ../../..
topsrcdir = @top_srcdir@
srcdir = @srcdir@
VPATH = @srcdir@
include $(DEPTH)/config/autoconf.mk
MODULE = widget
LIBRARY_NAME = widget_qt
EXPORT_LIBRARY = 1
IS_COMPONENT = 1
MODULE_NAME = nsWidgetQtModule
GRE_MODULE = 1
LIBXUL_LIBRARY = 1
REQUIRES = xpcom \
string \
gfx \
pref \
dom \
necko \
uconv \
intl \
imglib2 \
view \
content \
layout \
util \
locale \
thebes \
cairo \
$(NULL)
MOCSRCS = \
moc_mozqwidget.cpp \
moc_nsAppShell.cpp \
$(NULL)
CSRCS = \
keysym2ucs.c \
$(NULL)
CPPSRCS = \
$(MOCSRCS) \
nsAppShell.cpp \
nsWidgetFactory.cpp \
nsCommonWidget.cpp \
nsWindow.cpp \
nsLookAndFeel.cpp \
nsToolkit.cpp \
nsScreenQt.cpp \
nsScreenManagerQt.cpp \
nsQtKeyUtils.cpp \
nsClipboard.cpp \
nsBidiKeyboard.cpp \
nsIdleServiceQt.cpp \
nsDragService.cpp \
nsNativeThemeQt.cpp \
mozqwidget.cpp \
nsSound.cpp \
nsFilePicker.cpp \
$(NULL)
SHARED_LIBRARY_LIBS = ../xpwidgets/libxpwidgets_s.a
EXTRA_DSO_LDOPTS = \
$(MOZ_COMPONENT_LIBS) \
-lgkgfx \
-lthebes \
$(LCMS_LIBS) \
$(MOZ_JS_LIBS) \
$(MOZ_QT_LIBS) \
$(NULL)
EXTRA_DSO_LDOPTS += -L$(DIST)/lib $(MOZ_XLIB_LDFLAGS)
# If not primary toolkit, install in secondary path
ifneq (qt,$(MOZ_WIDGET_TOOLKIT))
INACTIVE_COMPONENT = 1
endif
include $(topsrcdir)/config/rules.mk
CXXFLAGS += $(MOZ_QT_CFLAGS)
CFLAGS += $(MOZ_QT_CFLAGS)
DEFINES += -D_IMPL_NS_WIDGET
#DEFINES += -DDEBUG_WIDGETS
ifeq ($(OS_ARCH), Linux)
DEFINES += -D_BSD_SOURCE
endif
ifeq ($(OS_ARCH), SunOS)
ifndef GNU_CC
# When using Sun's WorkShop compiler, including
# /wherever/workshop-5.0/SC5.0/include/CC/std/time.h
# causes most of these compiles to fail with:
# line 29: Error: Multiple declaration for std::tm.
# So, this gets around the problem.
DEFINES += -D_TIME_H=1
endif
endif
LOCAL_INCLUDES += \
-I$(topsrcdir)/widget/src/xpwidgets \
-I$(srcdir) \
$(NULL)