summaryrefslogtreecommitdiffstats
path: root/gfx/thebes/gfxMacFont.h
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/thebes/gfxMacFont.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/thebes/gfxMacFont.h')
-rw-r--r--gfx/thebes/gfxMacFont.h102
1 files changed, 102 insertions, 0 deletions
diff --git a/gfx/thebes/gfxMacFont.h b/gfx/thebes/gfxMacFont.h
new file mode 100644
index 000000000..d12cc717b
--- /dev/null
+++ b/gfx/thebes/gfxMacFont.h
@@ -0,0 +1,102 @@
+/* -*- 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/. */
+
+#ifndef GFX_MACFONT_H
+#define GFX_MACFONT_H
+
+#include "mozilla/MemoryReporting.h"
+#include "gfxFont.h"
+#include "cairo.h"
+#include <ApplicationServices/ApplicationServices.h>
+
+class MacOSFontEntry;
+
+class gfxMacFont : public gfxFont
+{
+public:
+ gfxMacFont(MacOSFontEntry *aFontEntry, const gfxFontStyle *aFontStyle,
+ bool aNeedsBold);
+
+ virtual ~gfxMacFont();
+
+ CGFontRef GetCGFontRef() const { return mCGFont; }
+
+ /* overrides for the pure virtual methods in gfxFont */
+ virtual uint32_t GetSpaceGlyph() override {
+ return mSpaceGlyph;
+ }
+
+ virtual bool SetupCairoFont(DrawTarget* aDrawTarget) override;
+
+ /* override Measure to add padding for antialiasing */
+ virtual RunMetrics Measure(const gfxTextRun *aTextRun,
+ uint32_t aStart, uint32_t aEnd,
+ BoundingBoxType aBoundingBoxType,
+ DrawTarget *aDrawTargetForTightBoundingBox,
+ Spacing *aSpacing,
+ uint16_t aOrientation) override;
+
+ // We need to provide hinted (non-linear) glyph widths if using a font
+ // with embedded color bitmaps (Apple Color Emoji), as Core Text renders
+ // the glyphs with non-linear scaling at small pixel sizes.
+ virtual bool ProvidesGlyphWidths() const override {
+ return mFontEntry->HasFontTable(TRUETYPE_TAG('s','b','i','x'));
+ }
+
+ virtual int32_t GetGlyphWidth(DrawTarget& aDrawTarget,
+ uint16_t aGID) override;
+
+ virtual already_AddRefed<mozilla::gfx::ScaledFont>
+ GetScaledFont(mozilla::gfx::DrawTarget *aTarget) override;
+
+ virtual already_AddRefed<mozilla::gfx::GlyphRenderingOptions>
+ GetGlyphRenderingOptions(const TextRunDrawParams* aRunParams = nullptr) override;
+
+ virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
+ FontCacheSizes* aSizes) const override;
+ virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
+ FontCacheSizes* aSizes) const override;
+
+ virtual FontType GetType() const override { return FONT_TYPE_MAC; }
+
+protected:
+ virtual const Metrics& GetHorizontalMetrics() override {
+ return mMetrics;
+ }
+
+ // override to prefer CoreText shaping with fonts that depend on AAT
+ virtual bool ShapeText(DrawTarget *aDrawTarget,
+ const char16_t *aText,
+ uint32_t aOffset,
+ uint32_t aLength,
+ Script aScript,
+ bool aVertical,
+ gfxShapedText *aShapedText) override;
+
+ void InitMetrics();
+ void InitMetricsFromPlatform();
+
+ // Get width and glyph ID for a character; uses aConvFactor
+ // to convert font units as returned by CG to actual dimensions
+ gfxFloat GetCharWidth(CFDataRef aCmap, char16_t aUniChar,
+ uint32_t *aGlyphID, gfxFloat aConvFactor);
+
+ // a weak reference to the CoreGraphics font: this is owned by the
+ // MacOSFontEntry, it is not retained or released by gfxMacFont
+ CGFontRef mCGFont;
+
+ // a Core Text font reference, created only if we're using CT to measure
+ // glyph widths; otherwise null.
+ CTFontRef mCTFont;
+
+ cairo_font_face_t *mFontFace;
+
+ mozilla::UniquePtr<gfxFontShaper> mCoreTextShaper;
+
+ Metrics mMetrics;
+ uint32_t mSpaceGlyph;
+};
+
+#endif /* GFX_MACFONT_H */