Fixes vertical alignment of RenderText.

ui/gfx/platform_font_fake.cc

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/gfx/platform_font_fake.h"
+
+#include "base/logging.h"
+#include "ui/gfx/font.h"
+
+namespace gfx {
+
+////////////////////////////////////////////////////////////////////////////////
+// PlatformFontPango, public:
+
+PlatformFontFake::PlatformFontFake() {
+  InitWithNameAndSize("Fake", 10);
+}
+
+PlatformFontFake::PlatformFontFake(const std::string& font_name,
+                                   int font_size) {
+  InitWithNameAndSize(font_name, font_size);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlatformFontFake, PlatformFont implementation:
+
+Font PlatformFontFake::DeriveFont(int size_delta, int style) const {
+  PlatformFontFake* platform_font = new PlatformFontFake(
+      font_name_, font_size_ + size_delta);
+  platform_font->style_ = style;
+  return Font(platform_font);
+}
+
+int PlatformFontFake::GetHeight() const {
+  return height_;
+}
+
+int PlatformFontFake::GetBaseline() const {
+  return baseline_;
+}
+
+int PlatformFontFake::GetAverageCharacterWidth() const {
+  return average_character_width_;
+}
+
+int PlatformFontFake::GetStringWidth(const base::string16& text) const {
+  return GetAverageCharacterWidth() * text.length();
+}
+
+int PlatformFontFake::GetExpectedTextWidth(int length) const {
+  return GetAverageCharacterWidth() * length;
+}
+
+int PlatformFontFake::GetStyle() const {
+  return style_;
+}
+
+std::string PlatformFontFake::GetFontName() const {
+  return font_name_;
+}
+
+int PlatformFontFake::GetFontSize() const {
+  return font_size_;
+}
+
+NativeFont PlatformFontFake::GetNativeFont() const {
+  return static_cast<NativeFont>(NULL);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlatformFontFake, setter for customization:
+
+void PlatformFontFake::SetHeight(int height) {
+  height_ = height;
+}
+
+void PlatformFontFake::SetBaseline(int baseline) {
+  baseline_ = baseline;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlatformFontPango, private:
+
+void PlatformFontFake::InitWithNameAndSize(const std::string& font_name,
+                                           int font_size) {
+  font_name_ = font_name;
+  font_size_ = font_size;
+  style_ = Font::NORMAL;
+  height_ = font_size_;
+  baseline_ = static_cast<int>(height_ * 0.8);
+  average_character_width_ = static_cast<int>(height_ * 0.9);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlatformFont, public:
+
+// static
+PlatformFont* PlatformFont::CreateDefault() {
+  return new PlatformFontFake();
+}
+
+// static
+PlatformFont* PlatformFont::CreateFromNativeFont(NativeFont native_font) {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+// static
+PlatformFont* PlatformFont::CreateFromNameAndSize(const std::string& font_name,
+                                                  int font_size) {
+  return new PlatformFontFake(font_name, font_size);
+}
+
+} // namespace gfx