зеркало из https://github.com/mozilla/gecko-dev.git
616 строки
17 KiB
C++
616 строки
17 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <QPixmap>
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#include <qglobal.h>
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#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
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# include <QX11Info>
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#else
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# include <QPlatformNativeInterface>
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#endif
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#include <QApplication>
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#include <QDesktopWidget>
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#include <QPaintEngine>
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#include "gfxQtPlatform.h"
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#include "gfxFontconfigUtils.h"
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#include "mozilla/gfx/2D.h"
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#include "cairo.h"
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#include "gfxImageSurface.h"
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#include "gfxQPainterSurface.h"
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#include "nsUnicodeProperties.h"
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#ifdef MOZ_PANGO
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#include "gfxPangoFonts.h"
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#include "gfxContext.h"
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#include "gfxUserFontSet.h"
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#else
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#include "gfxFT2Fonts.h"
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#endif
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#include "nsUnicharUtils.h"
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#include <fontconfig/fontconfig.h>
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#include "nsMathUtils.h"
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#include "nsTArray.h"
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#ifdef MOZ_X11
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#include "gfxXlibSurface.h"
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#endif
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#include "qcms.h"
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#ifndef MOZ_PANGO
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#endif
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#include "mozilla/Preferences.h"
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using namespace mozilla;
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using namespace mozilla::unicode;
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using namespace mozilla::gfx;
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#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
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#define DEFAULT_RENDER_MODE RENDER_DIRECT
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#else
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#define DEFAULT_RENDER_MODE RENDER_BUFFERED
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#endif
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static QPaintEngine::Type sDefaultQtPaintEngineType = QPaintEngine::Raster;
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gfxFontconfigUtils *gfxQtPlatform::sFontconfigUtils = nullptr;
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static cairo_user_data_key_t cairo_qt_pixmap_key;
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static void do_qt_pixmap_unref (void *data)
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{
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QPixmap *pmap = (QPixmap*)data;
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delete pmap;
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}
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static gfxImageFormat sOffscreenFormat = gfxASurface::ImageFormatRGB24;
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#ifndef MOZ_PANGO
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typedef nsDataHashtable<nsStringHashKey, nsRefPtr<FontFamily> > FontTable;
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typedef nsDataHashtable<nsCStringHashKey, nsTArray<nsRefPtr<FontEntry> > > PrefFontTable;
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static FontTable *gPlatformFonts = NULL;
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static FontTable *gPlatformFontAliases = NULL;
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static PrefFontTable *gPrefFonts = NULL;
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static gfxSparseBitSet *gCodepointsWithNoFonts = NULL;
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static FT_Library gPlatformFTLibrary = NULL;
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#endif
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gfxQtPlatform::gfxQtPlatform()
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{
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mPrefFonts.Init(50);
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if (!sFontconfigUtils)
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sFontconfigUtils = gfxFontconfigUtils::GetFontconfigUtils();
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#ifdef MOZ_PANGO
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g_type_init();
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#else
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FT_Init_FreeType(&gPlatformFTLibrary);
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gPlatformFonts = new FontTable();
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gPlatformFonts->Init(100);
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gPlatformFontAliases = new FontTable();
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gPlatformFontAliases->Init(100);
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gPrefFonts = new PrefFontTable();
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gPrefFonts->Init(100);
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gCodepointsWithNoFonts = new gfxSparseBitSet();
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UpdateFontList();
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#endif
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nsresult rv;
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// 0 - default gfxQPainterSurface
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// 1 - gfxImageSurface
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int32_t ival = Preferences::GetInt("mozilla.widget-qt.render-mode", DEFAULT_RENDER_MODE);
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const char *envTypeOverride = getenv("MOZ_QT_RENDER_TYPE");
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if (envTypeOverride)
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ival = atoi(envTypeOverride);
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switch (ival) {
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case 0:
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mRenderMode = RENDER_QPAINTER;
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break;
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case 1:
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mRenderMode = RENDER_BUFFERED;
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break;
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case 2:
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mRenderMode = RENDER_DIRECT;
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break;
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default:
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mRenderMode = RENDER_QPAINTER;
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}
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// Qt doesn't provide a public API to detect the graphicssystem type. We hack
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// around this by checking what type of graphicssystem a test QPixmap uses.
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QPixmap pixmap(1, 1);
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if (pixmap.depth() == 16) {
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sOffscreenFormat = gfxASurface::ImageFormatRGB16_565;
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}
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mScreenDepth = pixmap.depth();
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#if (QT_VERSION < QT_VERSION_CHECK(4,8,0))
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if (pixmap.paintEngine())
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sDefaultQtPaintEngineType = pixmap.paintEngine()->type();
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#endif
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}
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gfxQtPlatform::~gfxQtPlatform()
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{
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gfxFontconfigUtils::Shutdown();
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sFontconfigUtils = nullptr;
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#ifdef MOZ_PANGO
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gfxPangoFontGroup::Shutdown();
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#else
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delete gPlatformFonts;
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gPlatformFonts = NULL;
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delete gPlatformFontAliases;
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gPlatformFontAliases = NULL;
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delete gPrefFonts;
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gPrefFonts = NULL;
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delete gCodepointsWithNoFonts;
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gCodepointsWithNoFonts = NULL;
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cairo_debug_reset_static_data();
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FT_Done_FreeType(gPlatformFTLibrary);
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gPlatformFTLibrary = NULL;
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#endif
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#if 0
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// It would be nice to do this (although it might need to be after
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// the cairo shutdown that happens in ~gfxPlatform). It even looks
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// idempotent. But it has fatal assertions that fire if stuff is
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// leaked, and we hit them.
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FcFini();
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#endif
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}
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#ifdef MOZ_X11
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Display*
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gfxQtPlatform::GetXDisplay(QWidget* aWindow)
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{
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#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
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#ifdef Q_WS_X11
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return aWindow ? aWindow->x11Info().display() : QX11Info::display();
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#else
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return nullptr;
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#endif
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#else
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return (Display*)(qApp->platformNativeInterface()->
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nativeResourceForWindow("display", aWindow ? aWindow->windowHandle() : nullptr));
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#endif
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}
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Screen*
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gfxQtPlatform::GetXScreen(QWidget* aWindow)
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{
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#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
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#ifdef Q_WS_X11
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return ScreenOfDisplay(GetXDisplay(aWindow), aWindow ? aWindow->x11Info().screen() : QX11Info().screen());
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#else
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return nullptr;
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#endif
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#else
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return ScreenOfDisplay(GetXDisplay(aWindow),
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(int)qApp->platformNativeInterface()->
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nativeResourceForWindow("screen",
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aWindow ? aWindow->windowHandle() : nullptr));
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#endif
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}
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#endif
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already_AddRefed<gfxASurface>
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gfxQtPlatform::CreateOffscreenSurface(const gfxIntSize& size,
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gfxASurface::gfxContentType contentType)
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{
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nsRefPtr<gfxASurface> newSurface = nullptr;
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gfxASurface::gfxImageFormat imageFormat = OptimalFormatForContent(contentType);
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#ifdef CAIRO_HAS_QT_SURFACE
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if (mRenderMode == RENDER_QPAINTER) {
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newSurface = new gfxQPainterSurface(size, imageFormat);
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return newSurface.forget();
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}
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#endif
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if ((mRenderMode == RENDER_BUFFERED || mRenderMode == RENDER_DIRECT) &&
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sDefaultQtPaintEngineType != QPaintEngine::X11) {
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newSurface = new gfxImageSurface(size, imageFormat);
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return newSurface.forget();
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}
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#ifdef MOZ_X11
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XRenderPictFormat* xrenderFormat =
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gfxXlibSurface::FindRenderFormat(GetXDisplay(), imageFormat);
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Screen* screen = GetXScreen();
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newSurface = gfxXlibSurface::Create(screen, xrenderFormat, size);
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#endif
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if (newSurface) {
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gfxContext ctx(newSurface);
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ctx.SetOperator(gfxContext::OPERATOR_CLEAR);
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ctx.Paint();
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}
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return newSurface.forget();
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}
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nsresult
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gfxQtPlatform::GetFontList(nsIAtom *aLangGroup,
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const nsACString& aGenericFamily,
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nsTArray<nsString>& aListOfFonts)
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{
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return sFontconfigUtils->GetFontList(aLangGroup, aGenericFamily,
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aListOfFonts);
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}
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nsresult
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gfxQtPlatform::UpdateFontList()
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{
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#ifndef MOZ_PANGO
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FcPattern *pat = NULL;
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FcObjectSet *os = NULL;
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FcFontSet *fs = NULL;
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pat = FcPatternCreate();
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os = FcObjectSetBuild(FC_FAMILY, FC_FILE, FC_INDEX, FC_WEIGHT, FC_SLANT, FC_WIDTH, NULL);
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fs = FcFontList(NULL, pat, os);
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for (int i = 0; i < fs->nfont; i++) {
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char *str;
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if (FcPatternGetString(fs->fonts[i], FC_FAMILY, 0, (FcChar8 **) &str) != FcResultMatch)
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continue;
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nsAutoString name(NS_ConvertUTF8toUTF16(nsDependentCString(str)).get());
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nsAutoString key(name);
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ToLowerCase(key);
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nsRefPtr<FontFamily> ff;
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if (!gPlatformFonts->Get(key, &ff)) {
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ff = new FontFamily(name);
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gPlatformFonts->Put(key, ff);
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}
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FontEntry *fe = new FontEntry(ff->Name());
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ff->AddFontEntry(fe);
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if (FcPatternGetString(fs->fonts[i], FC_FILE, 0, (FcChar8 **) &str) == FcResultMatch) {
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fe->mFilename = nsDependentCString(str);
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}
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int x;
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if (FcPatternGetInteger(fs->fonts[i], FC_INDEX, 0, &x) == FcResultMatch) {
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fe->mFTFontIndex = x;
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} else {
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fe->mFTFontIndex = 0;
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}
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if (FcPatternGetInteger(fs->fonts[i], FC_WEIGHT, 0, &x) == FcResultMatch) {
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switch(x) {
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case 0:
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fe->mWeight = 100;
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break;
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case 40:
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fe->mWeight = 200;
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break;
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case 50:
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fe->mWeight = 300;
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break;
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case 75:
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case 80:
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fe->mWeight = 400;
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break;
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case 100:
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fe->mWeight = 500;
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break;
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case 180:
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fe->mWeight = 600;
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break;
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case 200:
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fe->mWeight = 700;
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break;
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case 205:
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fe->mWeight = 800;
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break;
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case 210:
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fe->mWeight = 900;
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break;
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default:
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// rough estimate
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fe->mWeight = (((x * 4) + 100) / 100) * 100;
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break;
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}
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}
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fe->mItalic = false;
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if (FcPatternGetInteger(fs->fonts[i], FC_SLANT, 0, &x) == FcResultMatch) {
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switch (x) {
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case FC_SLANT_ITALIC:
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case FC_SLANT_OBLIQUE:
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fe->mItalic = true;
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}
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}
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// XXX deal with font-stretch (FC_WIDTH) stuff later
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}
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if (pat)
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FcPatternDestroy(pat);
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if (os)
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FcObjectSetDestroy(os);
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if (fs)
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FcFontSetDestroy(fs);
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#endif
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return sFontconfigUtils->UpdateFontList();
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}
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nsresult
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gfxQtPlatform::ResolveFontName(const nsAString& aFontName,
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FontResolverCallback aCallback,
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void *aClosure,
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bool& aAborted)
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{
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#ifdef MOZ_PANGO
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return sFontconfigUtils->ResolveFontName(aFontName, aCallback,
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aClosure, aAborted);
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#else
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nsAutoString name(aFontName);
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ToLowerCase(name);
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nsRefPtr<FontFamily> ff;
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if (gPlatformFonts->Get(name, &ff) ||
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gPlatformFontAliases->Get(name, &ff)) {
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aAborted = !(*aCallback)(ff->Name(), aClosure);
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return NS_OK;
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}
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nsAutoCString utf8Name = NS_ConvertUTF16toUTF8(aFontName);
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FcPattern *npat = FcPatternCreate();
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FcPatternAddString(npat, FC_FAMILY, (FcChar8*)utf8Name.get());
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FcObjectSet *nos = FcObjectSetBuild(FC_FAMILY, NULL);
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FcFontSet *nfs = FcFontList(NULL, npat, nos);
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for (int k = 0; k < nfs->nfont; k++) {
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FcChar8 *str;
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if (FcPatternGetString(nfs->fonts[k], FC_FAMILY, 0, (FcChar8 **) &str) != FcResultMatch)
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continue;
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nsAutoString altName = NS_ConvertUTF8toUTF16(nsDependentCString(reinterpret_cast<char*>(str)));
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ToLowerCase(altName);
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if (gPlatformFonts->Get(altName, &ff)) {
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gPlatformFontAliases->Put(name, ff);
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aAborted = !(*aCallback)(NS_ConvertUTF8toUTF16(nsDependentCString(reinterpret_cast<char*>(str))), aClosure);
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goto DONE;
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}
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}
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FcPatternDestroy(npat);
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FcObjectSetDestroy(nos);
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FcFontSetDestroy(nfs);
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{
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npat = FcPatternCreate();
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FcPatternAddString(npat, FC_FAMILY, (FcChar8*)utf8Name.get());
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FcPatternDel(npat, FC_LANG);
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FcConfigSubstitute(NULL, npat, FcMatchPattern);
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FcDefaultSubstitute(npat);
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nos = FcObjectSetBuild(FC_FAMILY, NULL);
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nfs = FcFontList(NULL, npat, nos);
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FcResult fresult;
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FcPattern *match = FcFontMatch(NULL, npat, &fresult);
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if (match)
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FcFontSetAdd(nfs, match);
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for (int k = 0; k < nfs->nfont; k++) {
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FcChar8 *str;
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if (FcPatternGetString(nfs->fonts[k], FC_FAMILY, 0, (FcChar8 **) &str) != FcResultMatch)
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continue;
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nsAutoString altName = NS_ConvertUTF8toUTF16(nsDependentCString(reinterpret_cast<char*>(str)));
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ToLowerCase(altName);
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if (gPlatformFonts->Get(altName, &ff)) {
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gPlatformFontAliases->Put(name, ff);
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aAborted = !(*aCallback)(NS_ConvertUTF8toUTF16(nsDependentCString(reinterpret_cast<char*>(str))), aClosure);
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goto DONE;
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}
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}
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}
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DONE:
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FcPatternDestroy(npat);
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FcObjectSetDestroy(nos);
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FcFontSetDestroy(nfs);
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return NS_OK;
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#endif
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}
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nsresult
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gfxQtPlatform::GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName)
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{
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return sFontconfigUtils->GetStandardFamilyName(aFontName, aFamilyName);
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}
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gfxFontGroup *
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gfxQtPlatform::CreateFontGroup(const nsAString &aFamilies,
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const gfxFontStyle *aStyle,
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gfxUserFontSet* aUserFontSet)
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{
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#ifdef MOZ_PANGO
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return new gfxPangoFontGroup(aFamilies, aStyle, aUserFontSet);
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#else
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return new gfxFT2FontGroup(aFamilies, aStyle, aUserFontSet);
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#endif
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}
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#ifdef MOZ_PANGO
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gfxFontEntry*
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gfxQtPlatform::LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
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const nsAString& aFontName)
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{
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return gfxPangoFontGroup::NewFontEntry(*aProxyEntry, aFontName);
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}
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gfxFontEntry*
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gfxQtPlatform::MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
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const uint8_t *aFontData, uint32_t aLength)
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{
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// passing ownership of the font data to the new font entry
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return gfxPangoFontGroup::NewFontEntry(*aProxyEntry,
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aFontData, aLength);
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}
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bool
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gfxQtPlatform::IsFontFormatSupported(nsIURI *aFontURI, uint32_t aFormatFlags)
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{
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// check for strange format flags
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NS_ASSERTION(!(aFormatFlags & gfxUserFontSet::FLAG_FORMAT_NOT_USED),
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"strange font format hint set");
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// accept supported formats
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// Pango doesn't apply features from AAT TrueType extensions.
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// Assume that if this is the only SFNT format specified,
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// then AAT extensions are required for complex script support.
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if (aFormatFlags & (gfxUserFontSet::FLAG_FORMAT_WOFF |
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gfxUserFontSet::FLAG_FORMAT_OPENTYPE |
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gfxUserFontSet::FLAG_FORMAT_TRUETYPE)) {
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return true;
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}
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// reject all other formats, known and unknown
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if (aFormatFlags != 0) {
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return false;
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}
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// no format hint set, need to look at data
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return true;
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}
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#endif
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qcms_profile*
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gfxQtPlatform::GetPlatformCMSOutputProfile()
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{
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return nullptr;
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}
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#ifndef MOZ_PANGO
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FT_Library
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gfxQtPlatform::GetFTLibrary()
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{
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return gPlatformFTLibrary;
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}
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FontFamily *
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gfxQtPlatform::FindFontFamily(const nsAString& aName)
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{
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nsAutoString name(aName);
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ToLowerCase(name);
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nsRefPtr<FontFamily> ff;
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if (!gPlatformFonts->Get(name, &ff)) {
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return nullptr;
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}
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return ff.get();
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}
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FontEntry *
|
|
gfxQtPlatform::FindFontEntry(const nsAString& aName, const gfxFontStyle& aFontStyle)
|
|
{
|
|
nsRefPtr<FontFamily> ff = FindFontFamily(aName);
|
|
if (!ff)
|
|
return nullptr;
|
|
|
|
return ff->FindFontEntry(aFontStyle);
|
|
}
|
|
|
|
static PLDHashOperator
|
|
FindFontForCharProc(nsStringHashKey::KeyType aKey,
|
|
nsRefPtr<FontFamily>& aFontFamily,
|
|
void* aUserArg)
|
|
{
|
|
GlobalFontMatch *data = (GlobalFontMatch*)aUserArg;
|
|
aFontFamily->FindFontForChar(data);
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
already_AddRefed<gfxFont>
|
|
gfxQtPlatform::FindFontForChar(uint32_t aCh, gfxFont *aFont)
|
|
{
|
|
if (!gPlatformFonts || !gCodepointsWithNoFonts)
|
|
return nullptr;
|
|
|
|
// is codepoint with no matching font? return null immediately
|
|
if (gCodepointsWithNoFonts->test(aCh)) {
|
|
return nullptr;
|
|
}
|
|
|
|
GlobalFontMatch data(aCh, GetScriptCode(aCh),
|
|
(aFont ? aFont->GetStyle() : nullptr));
|
|
|
|
// find fonts that support the character
|
|
gPlatformFonts->Enumerate(FindFontForCharProc, &data);
|
|
|
|
if (data.mBestMatch) {
|
|
nsRefPtr<gfxFT2Font> font =
|
|
gfxFT2Font::GetOrMakeFont(static_cast<FontEntry*>(data.mBestMatch.get()),
|
|
aFont->GetStyle());
|
|
gfxFont* ret = font.forget().get();
|
|
return already_AddRefed<gfxFont>(ret);
|
|
}
|
|
|
|
// no match? add to set of non-matching codepoints
|
|
gCodepointsWithNoFonts->set(aCh);
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
bool
|
|
gfxQtPlatform::GetPrefFontEntries(const nsCString& aKey, nsTArray<nsRefPtr<gfxFontEntry> > *array)
|
|
{
|
|
return mPrefFonts.Get(aKey, array);
|
|
}
|
|
|
|
void
|
|
gfxQtPlatform::SetPrefFontEntries(const nsCString& aKey, nsTArray<nsRefPtr<gfxFontEntry> >& array)
|
|
{
|
|
mPrefFonts.Put(aKey, array);
|
|
}
|
|
|
|
#endif
|
|
|
|
int32_t
|
|
gfxQtPlatform::GetDPI()
|
|
{
|
|
QDesktopWidget* rootWindow = qApp->desktop();
|
|
int32_t dpi = rootWindow->logicalDpiY(); // y-axis DPI for fonts
|
|
return dpi <= 0 ? 96 : dpi;
|
|
}
|
|
|
|
gfxImageFormat
|
|
gfxQtPlatform::GetOffscreenFormat()
|
|
{
|
|
return sOffscreenFormat;
|
|
}
|
|
|
|
int
|
|
gfxQtPlatform::GetScreenDepth() const
|
|
{
|
|
return mScreenDepth;
|
|
}
|
|
|