ChromeCanvas->gfx::Canvas

app/gfx/chrome_font_skia.cc

Index: app/gfx/chrome_font_skia.cc
===================================================================
--- app/gfx/chrome_font_skia.cc	(revision 16147)
+++ app/gfx/chrome_font_skia.cc	(working copy)
@@ -1,167 +0,0 @@
-// Copyright (c) 2006-2008 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 "app/gfx/chrome_font.h"
-
-#include "base/logging.h"
-#include "base/sys_string_conversions.h"
-
-#include "third_party/skia/include/core/SkTypeface.h"
-#include "third_party/skia/include/core/SkPaint.h"
-
-namespace gfx {
-
-Font::Font(const Font& other) {
-  CopyFont(other);
-}
-
-Font& Font::operator=(const Font& other) {
-  CopyFont(other);
-  return *this;
-}
-
-Font::Font(SkTypeface* tf, const std::wstring& font_family, int font_size,
-           int style)
-    : typeface_helper_(new SkAutoUnref(tf)),
-      typeface_(tf),
-      font_family_(font_family),
-      font_size_(font_size),
-      style_(style) {
-  tf->ref();
-  calculateMetrics();
-}
-
-void Font::calculateMetrics() {
-  SkPaint paint;
-  SkPaint::FontMetrics metrics;
-
-  PaintSetup(&paint);
-  paint.getFontMetrics(&metrics);
-
-  ascent_ = SkScalarRound(-metrics.fAscent);
-  height_ = SkScalarRound(-metrics.fAscent + metrics.fDescent +
-                          metrics.fLeading);
-
-  if (metrics.fAvgCharWidth) {
-    avg_width_ = SkScalarRound(metrics.fAvgCharWidth);
-  } else {
-    static const char x_char = 'x';
-    paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
-    SkScalar width = paint.measureText(&x_char, 1);
-
-    avg_width_ = static_cast<int>(ceilf(SkScalarToFloat(width)));
-  }
-}
-
-void Font::CopyFont(const Font& other) {
-  typeface_helper_.reset(new SkAutoUnref(other.typeface_));
-  typeface_ = other.typeface_;
-  typeface_->ref();
-  font_family_ = other.font_family_;
-  font_size_ = other.font_size_;
-  style_ = other.style_;
-  height_ = other.height_;
-  ascent_ = other.ascent_;
-  avg_width_ = other.avg_width_;
-}
-
-int Font::height() const {
-  return height_;
-}
-
-int Font::baseline() const {
-  return ascent_;
-}
-
-int Font::ave_char_width() const {
-  return avg_width_;
-}
-
-Font Font::CreateFont(const std::wstring& font_family, int font_size) {
-  DCHECK_GT(font_size, 0);
-
-  SkTypeface* tf = SkTypeface::CreateFromName(
-      base::SysWideToUTF8(font_family).c_str(), SkTypeface::kNormal);
-  DCHECK(tf) << "Could not find font: " << base::SysWideToUTF8(font_family);
-  SkAutoUnref tf_helper(tf);
-
-  return Font(tf, font_family, font_size, NORMAL);
-}
-
-Font Font::DeriveFont(int size_delta, int style) const {
-  // If the delta is negative, if must not push the size below 1
-  if (size_delta < 0) {
-    DCHECK_LT(-size_delta, font_size_);
-  }
-
-  if (style == style_) {
-    // Fast path, we just use the same typeface at a different size
-    return Font(typeface_, font_family_, font_size_ + size_delta, style_);
-  }
-
-  // If the style has changed we may need to load a new face
-  int skstyle = SkTypeface::kNormal;
-  if (BOLD & style)
-    skstyle |= SkTypeface::kBold;
-  if (ITALIC & style)
-    skstyle |= SkTypeface::kItalic;
-
-  SkTypeface* tf = SkTypeface::CreateFromName(
-      base::SysWideToUTF8(font_family_).c_str(),
-      static_cast<SkTypeface::Style>(skstyle));
-  SkAutoUnref tf_helper(tf);
-
-  return Font(tf, font_family_, font_size_ + size_delta, skstyle);
-}
-
-void Font::PaintSetup(SkPaint* paint) const {
-  paint->setAntiAlias(false);
-  paint->setSubpixelText(false);
-  paint->setTextSize(SkFloatToScalar(font_size_));
-  paint->setTypeface(typeface_);
-  paint->setFakeBoldText((BOLD & style_) && !typeface_->isBold());
-  paint->setTextSkewX((ITALIC & style_) && !typeface_->isItalic() ?
-                      -SK_Scalar1/4 : 0);
-}
-
-int Font::GetStringWidth(const std::wstring& text) const {
-  const std::string utf8(base::SysWideToUTF8(text));
-
-  SkPaint paint;
-  PaintSetup(&paint);
-  paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
-  SkScalar width = paint.measureText(utf8.data(), utf8.size());
-
-  int breadth = static_cast<int>(ceilf(SkScalarToFloat(width)));
-  // Check for overflow. We should probably be returning an unsigned
-  // int, but in practice we'll never have a screen massive enough
-  // to show that much text anyway.
-  if (breadth < 0)
-    return INT_MAX;
-
-  return breadth;
-}
-
-int Font::GetExpectedTextWidth(int length) const {
-  return length * avg_width_;
-}
-
-
-int Font::style() const {
-  return style_;
-}
-
-std::wstring Font::FontName() {
-  return font_family_;
-}
-
-int Font::FontSize() {
-  return font_size_;
-}
-
-NativeFont Font::nativeFont() const {
-  return typeface_;
-}
-
-}  // namespace gfx