Add m-esr52 at 52.6.0

1 files changed, 71 insertions, 0 deletions

diff --git a/gfx/thebes/gfxCoreTextShaper.h b/gfx/thebes/gfxCoreTextShaper.h
new file mode 100644
index 000000000..8e5d24f91
--- /dev/null
+++ b/gfx/thebes/gfxCoreTextShaper.h
@@ -0,0 +1,71 @@
+/* -*- 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_CORETEXTSHAPER_H
+#define GFX_CORETEXTSHAPER_H
+
+#include "gfxFont.h"
+
+#include <ApplicationServices/ApplicationServices.h>
+
+class gfxMacFont;
+
+class gfxCoreTextShaper : public gfxFontShaper {
+public:
+    explicit gfxCoreTextShaper(gfxMacFont *aFont);
+
+    virtual ~gfxCoreTextShaper();
+
+    virtual bool ShapeText(DrawTarget      *aDrawTarget,
+                           const char16_t *aText,
+                           uint32_t         aOffset,
+                           uint32_t         aLength,
+                           Script           aScript,
+                           bool             aVertical,
+                           gfxShapedText   *aShapedText);
+
+    // clean up static objects that may have been cached
+    static void Shutdown();
+
+protected:
+    CTFontRef mCTFont;
+
+    // attributes for shaping text with LTR or RTL directionality
+    CFDictionaryRef mAttributesDictLTR;
+    CFDictionaryRef mAttributesDictRTL;
+
+    nsresult SetGlyphsFromRun(gfxShapedText *aShapedText,
+                              uint32_t       aOffset,
+                              uint32_t       aLength,
+                              CTRunRef       aCTRun,
+                              int32_t        aStringOffset);
+
+    CTFontRef CreateCTFontWithFeatures(CGFloat aSize,
+                                       CTFontDescriptorRef aDescriptor);
+
+    CFDictionaryRef CreateAttrDict(bool aRightToLeft);
+    CFDictionaryRef CreateAttrDictWithoutDirection();
+
+    static CTFontDescriptorRef
+    CreateFontFeaturesDescriptor(const std::pair<SInt16,SInt16> aFeatures[],
+                                 size_t aCount);
+
+    static CTFontDescriptorRef GetDefaultFeaturesDescriptor();
+    static CTFontDescriptorRef GetDisableLigaturesDescriptor();
+    static CTFontDescriptorRef GetIndicFeaturesDescriptor();
+    static CTFontDescriptorRef GetIndicDisableLigaturesDescriptor();
+
+    // cached font descriptor, created the first time it's needed
+    static CTFontDescriptorRef    sDefaultFeaturesDescriptor;
+
+    // cached descriptor for adding disable-ligatures setting to a font
+    static CTFontDescriptorRef    sDisableLigaturesDescriptor;
+
+    // feature descriptors for buggy Indic AAT font workaround
+    static CTFontDescriptorRef    sIndicFeaturesDescriptor;
+    static CTFontDescriptorRef    sIndicDisableLigaturesDescriptor;
+};
+
+#endif /* GFX_CORETEXTSHAPER_H */