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-rw-r--r--gfx/2d/ScaledFontWin.cpp103
1 files changed, 103 insertions, 0 deletions
diff --git a/gfx/2d/ScaledFontWin.cpp b/gfx/2d/ScaledFontWin.cpp
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+++ b/gfx/2d/ScaledFontWin.cpp
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 "ScaledFontWin.h"
+
+#include "AutoHelpersWin.h"
+#include "Logging.h"
+#include "nsString.h"
+
+#ifdef USE_SKIA
+#include "skia/include/ports/SkTypeface_win.h"
+#endif
+
+#ifdef USE_CAIRO_SCALED_FONT
+#include "cairo-win32.h"
+#endif
+
+#include "HelpersWinFonts.h"
+
+namespace mozilla {
+namespace gfx {
+
+ScaledFontWin::ScaledFontWin(const LOGFONT* aFont, Float aSize)
+ : ScaledFontBase(aSize)
+ , mLogFont(*aFont)
+{
+}
+
+bool
+ScaledFontWin::GetFontFileData(FontFileDataOutput aDataCallback, void *aBaton)
+{
+ AutoDC dc;
+ AutoSelectFont font(dc.GetDC(), &mLogFont);
+
+ // Check for a font collection first.
+ uint32_t table = 0x66637474; // 'ttcf'
+ uint32_t tableSize = ::GetFontData(dc.GetDC(), table, 0, nullptr, 0);
+ if (tableSize == GDI_ERROR) {
+ // Try as if just a single font.
+ table = 0;
+ tableSize = ::GetFontData(dc.GetDC(), table, 0, nullptr, 0);
+ if (tableSize == GDI_ERROR) {
+ return false;
+ }
+ }
+
+ UniquePtr<uint8_t[]> fontData(new uint8_t[tableSize]);
+
+ uint32_t sizeGot =
+ ::GetFontData(dc.GetDC(), table, 0, fontData.get(), tableSize);
+ if (sizeGot != tableSize) {
+ return false;
+ }
+
+ aDataCallback(fontData.get(), tableSize, 0, mSize, aBaton);
+ return true;
+}
+
+bool
+ScaledFontWin::GetFontInstanceData(FontInstanceDataOutput aCb, void* aBaton)
+{
+ aCb(reinterpret_cast<uint8_t*>(&mLogFont), sizeof(mLogFont), aBaton);
+ return true;
+}
+
+bool
+ScaledFontWin::GetFontDescriptor(FontDescriptorOutput aCb, void* aBaton)
+{
+ aCb(reinterpret_cast<uint8_t*>(&mLogFont), sizeof(mLogFont), mSize, aBaton);
+ return true;
+}
+
+AntialiasMode
+ScaledFontWin::GetDefaultAAMode()
+{
+ return GetSystemDefaultAAMode();
+}
+
+#ifdef USE_SKIA
+SkTypeface* ScaledFontWin::GetSkTypeface()
+{
+ if (!mTypeface) {
+ mTypeface = SkCreateTypefaceFromLOGFONT(mLogFont);
+ }
+ return mTypeface;
+}
+#endif
+
+#ifdef USE_CAIRO_SCALED_FONT
+cairo_font_face_t*
+ScaledFontWin::GetCairoFontFace()
+{
+ if (mLogFont.lfFaceName[0] == 0) {
+ return nullptr;
+ }
+ return cairo_win32_font_face_create_for_logfontw(&mLogFont);
+}
+#endif
+
+}
+}