1 files changed, 73 insertions, 0 deletions
diff --git a/skia/ext/SkFontHost_fontconfig_impl.h b/skia/ext/SkFontHost_fontconfig_impl.h
new file mode 100644
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+++ b/skia/ext/SkFontHost_fontconfig_impl.h
@@ -0,0 +1,73 @@
+/* libs/graphics/ports/SkFontHost_fontconfig_impl.h
+**
+** Copyright 2009, Google Inc.
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+/* The SkFontHost_fontconfig code requires an implementation of an abstact
+ * fontconfig interface. We do this because sometimes fontconfig is not
+ * directly availible and this provides an ability to change the fontconfig
+ * implementation at run-time.
+ */
+
+#ifndef FontConfigInterface_DEFINED
+#define FontConfigInterface_DEFINED
+
+#include <string>
+
+class FontConfigInterface {
+  public:
+    virtual ~FontConfigInterface() { }
+
+    /** Performs config match
+     *
+     *  @param result_family (optional, set to NULL to ignore, output)
+     *      on success, set to the resulting family name.
+     *  @param result_filefaceid (optional, set to NULL to ignore, output)
+     *      on success, set to the resulting fileface id.
+     *  @param filefaceid_valid if true, then |filefaceid| is valid
+     *  @param filefaceid the filefaceid (as returned by this function)
+     *         which we are trying to match.
+     *  @param family (optional) the family of the font that we are trying to
+     *    match. If the length of the |family| is greater then
+     *    kMaxFontFamilyLength, this function should immediately return false.
+     *  @param characters (optional) UTF-16 characters the font must cover.
+     *  @param characters_bytes (optional) number of bytes in |characters|
+     *  @param is_bold (optional, set to NULL to ignore, in/out)
+     *  @param is_italic (optional, set to NULL to ignore, in/out)
+     *  @return true iff successful.
+     *  Note that |filefaceid| uniquely identifies <font file, face_index) :
+     *  system font: filefaceid =
+     *                   (fileid(unique per font file) << 4 | face_index)
+     *  remote font: filefaceid = fileid
+     */
+    virtual bool Match(
+          std::string* result_family,
+          unsigned* result_filefaceid,
+          bool filefaceid_valid,
+          unsigned filefaceid,
+          const std::string& family,
+          const void* characters,
+          size_t characters_bytes,
+          bool* is_bold,
+          bool* is_italic) = 0;
+
+    /** Open a font file given the filefaceid as returned by Match.
+     */
+    virtual int Open(unsigned filefaceid) = 0;
+
+    static const unsigned kMaxFontFamilyLength = 2048;
+};
+
+#endif  // FontConfigInterface_DEFINED