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Unified Diff: webkit/api/src/gtk/WebFontInfo.cpp

Issue 132007: Linux: plumb fontconfig call out to the sandbox host. (Closed)
Patch Set: ... Created 11 years, 6 months ago
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Index: webkit/api/src/gtk/WebFontInfo.cpp
diff --git a/webkit/api/src/gtk/WebFontInfo.cpp b/webkit/api/src/gtk/WebFontInfo.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..2485022f1b6c86e0c353c99bd8f9ffc1da5e4072
--- /dev/null
+++ b/webkit/api/src/gtk/WebFontInfo.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "WebFontInfo.h"
+
+#include <string.h>
+
+#include <unicode/utf16.h>
+#include <fontconfig/fontconfig.h>
+
+namespace WebKit {
+
+WebString WebFontInfo::familyForChars(const WebUChar* characters, size_t numCharacters)
+{
+ FcCharSet* cset = FcCharSetCreate();
+ for (int i = 0; i < numCharacters; ++i) {
+ if (U16_IS_SURROGATE(characters[i])
+ && U16_IS_SURROGATE_LEAD(characters[i])
+ && i != numCharacters - 1
+ && U16_IS_TRAIL(characters[i + 1])) {
+ FcCharSetAddChar(cset, U16_GET_SUPPLEMENTARY(characters[i], characters[i+1]));
+ i++;
+ } else
+ FcCharSetAddChar(cset, characters[i]);
+ }
+ FcPattern* pattern = FcPatternCreate();
+
+ FcValue fcvalue;
+ fcvalue.type = FcTypeCharSet;
+ fcvalue.u.c = cset;
+ FcPatternAdd(pattern, FC_CHARSET, fcvalue, 0);
+
+ FcConfigSubstitute(0, pattern, FcMatchPattern);
+ FcDefaultSubstitute(pattern);
+
+ FcResult result;
+ FcPattern* match = FcFontMatch(0, pattern, &result);
+ FcPatternDestroy(pattern);
+ FcCharSetDestroy(cset);
+
+ if (match) {
+ FcChar8* family;
+ WebString result;
+ if (FcPatternGetString(match, FC_FAMILY, 0, &family) == FcResultMatch) {
+ const char* charFamily = reinterpret_cast<char*>(family);
+ result = WebString::fromUTF8(charFamily, strlen(charFamily));
+ }
+ FcPatternDestroy(match);
+ return result;
+ }
+
+ return WebString();
+}
+
+} // namespace WebKit
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