diff options
Diffstat (limited to 'app/gfx/font_skia.cc')
-rw-r--r-- | app/gfx/font_skia.cc | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/app/gfx/font_skia.cc b/app/gfx/font_skia.cc deleted file mode 100644 index 4308bf6..0000000 --- a/app/gfx/font_skia.cc +++ /dev/null @@ -1,160 +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/font.h" - -#include "app/gfx/canvas.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); - // Temporary CHECK for tracking down - // http://code.google.com/p/chromium/issues/detail?id=12530 - CHECK(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 { - int width = 0, height = 0; - - Canvas::SizeStringInt(text, *this, &width, &height, 0); - return width; -} - -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 |