--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/GlyphWidthMap.cpp Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2006 Apple Computer, 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:
+ *
+ * 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 "GlyphWidthMap.h"
+
+namespace WebCore
+{
+
+float GlyphWidthMap::widthForGlyph(Glyph g)
+{
+ unsigned pageNumber = (g / GlyphWidthPage::size);
+ GlyphWidthPage* page = locatePage(pageNumber);
+ if (page)
+ return page->widthForGlyph(g);
+ return cGlyphWidthUnknown;
+}
+
+void GlyphWidthMap::setWidthForGlyph(Glyph glyph, float width)
+{
+ unsigned pageNumber = (glyph / GlyphWidthPage::size);
+ GlyphWidthPage* page = locatePage(pageNumber);
+ if (page)
+ page->setWidthForGlyph(glyph, width);
+}
+
+inline GlyphWidthMap::GlyphWidthPage* GlyphWidthMap::locatePage(unsigned pageNumber)
+{
+ GlyphWidthPage* page;
+ if (pageNumber == 0) {
+ if (m_filledPrimaryPage)
+ return &m_primaryPage;
+ page = &m_primaryPage;
+ m_filledPrimaryPage = true;
+ } else {
+ if (m_pages) {
+ GlyphWidthPage* result = m_pages->get(pageNumber);
+ if (result)
+ return result;
+ }
+ page = new GlyphWidthPage;
+ if (!m_pages)
+ m_pages = new HashMap<int, GlyphWidthPage*>;
+ m_pages->set(pageNumber, page);
+ }
+
+ // Fill in the whole page with the unknown glyph width value.
+ for (unsigned i = 0; i < GlyphWidthPage::size; i++)
+ page->setWidthForIndex(i, cGlyphWidthUnknown);
+
+ return page;
+}
+
+}