gecko-dev/gfx/thebes/gfxQtPlatform.cpp

208 lines
5.6 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <QPixmap>
#include <QWindow>
#ifdef MOZ_X11
#include <qpa/qplatformnativeinterface.h>
#endif
#include <QGuiApplication>
#include <QScreen>
#include "gfxQtPlatform.h"
#include "gfxFontconfigUtils.h"
#include "mozilla/gfx/2D.h"
#include "cairo.h"
#include "gfxImageSurface.h"
#include "gfxQPainterSurface.h"
#include "nsUnicodeProperties.h"
#include "gfxFontconfigFonts.h"
#include "gfxContext.h"
#include "gfxUserFontSet.h"
#include "nsUnicharUtils.h"
#include "nsMathUtils.h"
#include "nsTArray.h"
#ifdef MOZ_X11
#include "gfxXlibSurface.h"
#include "prenv.h"
#endif
#include "qcms.h"
#include "mozilla/Preferences.h"
using namespace mozilla;
using namespace mozilla::unicode;
using namespace mozilla::gfx;
gfxFontconfigUtils *gfxQtPlatform::sFontconfigUtils = nullptr;
static gfxImageFormat sOffscreenFormat = gfxImageFormat::RGB24;
gfxQtPlatform::gfxQtPlatform()
{
if (!sFontconfigUtils)
sFontconfigUtils = gfxFontconfigUtils::GetFontconfigUtils();
mScreenDepth = qApp->primaryScreen()->depth();
if (mScreenDepth == 16) {
sOffscreenFormat = gfxImageFormat::RGB16_565;
}
uint32_t canvasMask = BackendTypeBit(BackendType::CAIRO) | BackendTypeBit(BackendType::SKIA);
uint32_t contentMask = BackendTypeBit(BackendType::CAIRO) | BackendTypeBit(BackendType::SKIA);
InitBackendPrefs(canvasMask, BackendType::CAIRO,
contentMask, BackendType::CAIRO);
}
gfxQtPlatform::~gfxQtPlatform()
{
gfxFontconfigUtils::Shutdown();
sFontconfigUtils = nullptr;
gfxPangoFontGroup::Shutdown();
}
#ifdef MOZ_X11
Display*
gfxQtPlatform::GetXDisplay(QWindow* aWindow)
{
return (Display*)(qApp->platformNativeInterface()->
nativeResourceForScreen("display", aWindow ? aWindow->screen() : qApp->primaryScreen()));
}
Screen*
gfxQtPlatform::GetXScreen(QWindow* aWindow)
{
return ScreenOfDisplay(GetXDisplay(aWindow),
(int)(intptr_t)qApp->platformNativeInterface()->
nativeResourceForScreen("screen", aWindow ? aWindow->screen() : qApp->primaryScreen()));
}
#endif
already_AddRefed<gfxASurface>
gfxQtPlatform::CreateOffscreenSurface(const IntSize& aSize,
gfxImageFormat aFormat)
{
nsRefPtr<gfxASurface> newSurface =
new gfxImageSurface(aSize, aFormat);
return newSurface.forget();
}
nsresult
gfxQtPlatform::GetFontList(nsIAtom *aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts)
{
return sFontconfigUtils->GetFontList(aLangGroup, aGenericFamily,
aListOfFonts);
}
nsresult
gfxQtPlatform::UpdateFontList()
{
return sFontconfigUtils->UpdateFontList();
}
nsresult
gfxQtPlatform::GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName)
{
return sFontconfigUtils->GetStandardFamilyName(aFontName, aFamilyName);
}
gfxFontGroup *
gfxQtPlatform::CreateFontGroup(const FontFamilyList& aFontFamilyList,
const gfxFontStyle *aStyle,
gfxUserFontSet* aUserFontSet)
{
return new gfxPangoFontGroup(aFontFamilyList, aStyle, aUserFontSet);
}
gfxFontEntry*
gfxQtPlatform::LookupLocalFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
bool aItalic)
{
return gfxPangoFontGroup::NewFontEntry(aFontName, aWeight,
aStretch, aItalic);
}
gfxFontEntry*
gfxQtPlatform::MakePlatformFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
bool aItalic,
const uint8_t* aFontData,
uint32_t aLength)
{
// passing ownership of the font data to the new font entry
return gfxPangoFontGroup::NewFontEntry(aFontName, aWeight,
aStretch, aItalic,
aFontData, aLength);
}
bool
gfxQtPlatform::IsFontFormatSupported(nsIURI *aFontURI, uint32_t aFormatFlags)
{
// check for strange format flags
NS_ASSERTION(!(aFormatFlags & gfxUserFontSet::FLAG_FORMAT_NOT_USED),
"strange font format hint set");
// accept supported formats
// Pango doesn't apply features from AAT TrueType extensions.
// Assume that if this is the only SFNT format specified,
// then AAT extensions are required for complex script support.
if (aFormatFlags & gfxUserFontSet::FLAG_FORMATS_COMMON) {
return true;
}
// reject all other formats, known and unknown
if (aFormatFlags != 0) {
return false;
}
// no format hint set, need to look at data
return true;
}
void
gfxQtPlatform::GetPlatformCMSOutputProfile(void *&mem, size_t &size)
{
mem = nullptr;
size = 0;
}
int32_t
gfxQtPlatform::GetDPI()
{
return qApp->primaryScreen()->logicalDotsPerInch();
}
gfxImageFormat
gfxQtPlatform::GetOffscreenFormat()
{
return sOffscreenFormat;
}
int
gfxQtPlatform::GetScreenDepth() const
{
return mScreenDepth;
}
already_AddRefed<ScaledFont>
gfxQtPlatform::GetScaledFontForFont(DrawTarget* aTarget, gfxFont* aFont)
{
return GetScaledFontForFontWithCairoSkia(aTarget, aFont);
}