summaryrefslogtreecommitdiffstats
path: root/gfx/thebes/gfxDWriteFonts.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/gfxDWriteFonts.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/gfxDWriteFonts.h')
-rw-r--r--gfx/thebes/gfxDWriteFonts.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/gfx/thebes/gfxDWriteFonts.h b/gfx/thebes/gfxDWriteFonts.h
new file mode 100644
index 000000000..72ac7a2b5
--- /dev/null
+++ b/gfx/thebes/gfxDWriteFonts.h
@@ -0,0 +1,107 @@
+/* -*- 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_WINDOWSDWRITEFONTS_H
+#define GFX_WINDOWSDWRITEFONTS_H
+
+#include "mozilla/MemoryReporting.h"
+#include "mozilla/UniquePtr.h"
+#include <dwrite.h>
+
+#include "gfxFont.h"
+#include "gfxUserFontSet.h"
+#include "cairo-win32.h"
+
+#include "nsDataHashtable.h"
+#include "nsHashKeys.h"
+
+/**
+ * \brief Class representing a font face for a font entry.
+ */
+class gfxDWriteFont : public gfxFont
+{
+public:
+ gfxDWriteFont(gfxFontEntry *aFontEntry,
+ const gfxFontStyle *aFontStyle,
+ bool aNeedsBold = false,
+ AntialiasOption = kAntialiasDefault);
+ ~gfxDWriteFont();
+
+ virtual gfxFont*
+ CopyWithAntialiasOption(AntialiasOption anAAOption) override;
+
+ virtual uint32_t GetSpaceGlyph() override;
+
+ virtual bool SetupCairoFont(DrawTarget* aDrawTarget) override;
+
+ virtual bool AllowSubpixelAA() override
+ { return mAllowManualShowGlyphs; }
+
+ bool IsValid() const;
+
+ IDWriteFontFace *GetFontFace();
+
+ /* 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;
+
+ virtual bool ProvidesGlyphWidths() const override;
+
+ virtual int32_t GetGlyphWidth(DrawTarget& aDrawTarget,
+ uint16_t aGID) 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_DWRITE; }
+
+ virtual already_AddRefed<mozilla::gfx::ScaledFont>
+ GetScaledFont(mozilla::gfx::DrawTarget *aTarget) override;
+
+ virtual cairo_scaled_font_t *GetCairoScaledFont() override;
+
+protected:
+ virtual const Metrics& GetHorizontalMetrics() override;
+
+ bool GetFakeMetricsForArialBlack(DWRITE_FONT_METRICS *aFontMetrics);
+
+ void ComputeMetrics(AntialiasOption anAAOption);
+
+ bool HasBitmapStrikeForSize(uint32_t aSize);
+
+ cairo_font_face_t *CairoFontFace();
+
+ gfxFloat MeasureGlyphWidth(uint16_t aGlyph);
+
+ DWRITE_MEASURING_MODE GetMeasuringMode();
+ bool GetForceGDIClassic();
+
+ RefPtr<IDWriteFontFace> mFontFace;
+ cairo_font_face_t *mCairoFontFace;
+
+ Metrics *mMetrics;
+
+ // cache of glyph widths in 16.16 fixed-point pixels
+ mozilla::UniquePtr<nsDataHashtable<nsUint32HashKey,int32_t>> mGlyphWidths;
+
+ uint32_t mSpaceGlyph;
+
+ bool mNeedsOblique;
+ bool mNeedsBold;
+ bool mUseSubpixelPositions;
+ bool mAllowManualShowGlyphs;
+ bool mAzureScaledFontIsCairo;
+};
+
+#endif