1 files changed, 117 insertions, 0 deletions
diff --git a/Source/WebCore/platform/win/WebCoreTextRenderer.cpp b/Source/WebCore/platform/win/WebCoreTextRenderer.cpp
new file mode 100644
index 000000000..76f90c110
--- /dev/null
+++ b/Source/WebCore/platform/win/WebCoreTextRenderer.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2007 Apple 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. 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 "WebCoreTextRenderer.h"
+
+#include "FontCascade.h"
+#include "FontDescription.h"
+#include "GraphicsContext.h"
+#include "StringTruncator.h"
+#include "TextRun.h"
+
+namespace WebCore {
+
+static bool shouldUseFontSmoothing = true;
+
+static bool isOneLeftToRightRun(const TextRun& run)
+{
+    for (int i = 0; i < run.length(); i++) {
+        UCharDirection direction = u_charDirection(run[i]);
+        if (direction == U_RIGHT_TO_LEFT || direction > U_OTHER_NEUTRAL)
+            return false;
+    }
+    return true;
+}
+
+static void doDrawTextAtPoint(GraphicsContext& context, const String& text, const IntPoint& point, const FontCascade& font, const Color& color, int underlinedIndex)
+{
+    TextRun run(text);
+
+    context.setFillColor(color);
+    if (isOneLeftToRightRun(run))
+        font.drawText(context, run, point);
+    else
+        context.drawBidiText(font, run, point);
+
+    if (underlinedIndex >= 0) {
+        ASSERT_WITH_SECURITY_IMPLICATION(underlinedIndex < static_cast<int>(text.length()));
+
+        int beforeWidth;
+        if (underlinedIndex > 0) {
+            TextRun beforeRun(StringView(text).substring(0, underlinedIndex));
+            beforeWidth = font.width(beforeRun);
+        } else
+            beforeWidth = 0;
+
+        TextRun underlinedRun(StringView(text).substring(underlinedIndex, 1));
+        int underlinedWidth = font.width(underlinedRun);
+
+        IntPoint underlinePoint(point);
+        underlinePoint.move(beforeWidth, 1);
+
+        context.setStrokeColor(color);
+        context.drawLineForText(underlinePoint, underlinedWidth, false);
+    }
+}
+
+void WebCoreDrawDoubledTextAtPoint(GraphicsContext& context, const String& text, const IntPoint& point, const FontCascade& font, const Color& topColor, const Color& bottomColor, int underlinedIndex)
+{
+    context.save();
+
+    IntPoint textPos = point;
+
+    doDrawTextAtPoint(context, text, textPos, font, bottomColor, underlinedIndex);
+    textPos.move(0, -1);
+    doDrawTextAtPoint(context, text, textPos, font, topColor, underlinedIndex);
+
+    context.restore();
+}
+
+float WebCoreTextFloatWidth(const String& text, const FontCascade& font)
+{
+    return StringTruncator::width(text, font);
+}
+
+void WebCoreSetShouldUseFontSmoothing(bool smooth)
+{
+    shouldUseFontSmoothing = smooth;
+}
+
+bool WebCoreShouldUseFontSmoothing()
+{
+    return shouldUseFontSmoothing;
+}
+
+void WebCoreSetAlwaysUsesComplexTextCodePath(bool complex)
+{
+    FontCascade::setCodePath(complex ? FontCascade::Complex : FontCascade::Auto);
+}
+
+bool WebCoreAlwaysUsesComplexTextCodePath()
+{
+    return FontCascade::codePath() == FontCascade::Complex;
+}
+
+} // namespace WebCore