auto import from //depot/cupcake/@135843

1 files changed, 98 insertions, 0 deletions

diff --git a/WebCore/platform/graphics/gtk/GlyphPageTreeNodePango.cpp b/WebCore/platform/graphics/gtk/GlyphPageTreeNodePango.cpp
new file mode 100644
index 0000000..8fada5c
--- /dev/null
+++ b/WebCore/platform/graphics/gtk/GlyphPageTreeNodePango.cpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
+ * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
+ * Copyright (C) 2007 Alp Toker <alp.toker@collabora.co.uk>
+ * Copyright (C) 2007 Pioneer Research Center USA, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "GlyphPageTreeNode.h"
+
+#include "SimpleFontData.h"
+#include <pango/pango-font.h>
+
+namespace WebCore {
+
+static PangoGlyph pango_font_get_glyph(PangoFont* font, PangoContext* context, gunichar wc)
+{
+    PangoGlyph result = 0;
+    gchar buffer[7];
+
+    gint  length = g_unichar_to_utf8(wc, buffer);
+    g_return_val_if_fail(length, 0);
+
+    GList* items = pango_itemize(context, buffer, 0, length, NULL, NULL);
+
+    if (g_list_length(items) == 1) {
+        PangoItem* item = reinterpret_cast<PangoItem*>(items->data);
+        PangoFont* tmpFont = item->analysis.font;
+        item->analysis.font = font;
+
+        PangoGlyphString* glyphs = pango_glyph_string_new();
+        pango_shape(buffer, length, &item->analysis, glyphs);
+
+        item->analysis.font = tmpFont;
+
+        if (glyphs->num_glyphs == 1)
+            result = glyphs->glyphs[0].glyph;
+        else
+            g_warning("didn't get 1 glyph but %d", glyphs->num_glyphs);
+
+        pango_glyph_string_free(glyphs);
+    }
+
+    g_list_foreach(items, (GFunc)pango_item_free, NULL);
+    g_list_free(items);
+
+    return result;
+}
+
+bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData)
+{
+    // The bufferLength will be greater than the glyph page size if the buffer has Unicode supplementary characters.
+    // We won't support this for now.
+    if (bufferLength > GlyphPage::size)
+        return false;
+
+    if (!fontData->m_font.m_font || fontData->m_font.m_font == reinterpret_cast<PangoFont*>(-1))
+        return false;
+
+    bool haveGlyphs = false;
+    for (unsigned i = 0; i < length; i++) {
+        Glyph glyph = pango_font_get_glyph(fontData->m_font.m_font, fontData->m_font.m_context, buffer[i]);
+        if (!glyph)
+            setGlyphDataForIndex(offset + i, 0, 0);
+        else {
+            setGlyphDataForIndex(offset + i, glyph, fontData);
+            haveGlyphs = true;
+        }
+    }
+
+    return haveGlyphs;
+}
+
+}