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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ui/gfx/platform_font_linux.h" | 5 #include "ui/gfx/platform_font_linux.h" |
| 6 | 6 |
| 7 #include <algorithm> | 7 #include <algorithm> |
| 8 #include <string> | 8 #include <string> |
| 9 | 9 |
| 10 #include "base/lazy_instance.h" | 10 #include "base/lazy_instance.h" |
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| 279 } | 279 } |
| 280 | 280 |
| 281 void PlatformFontLinux::ComputeMetricsIfNecessary() { | 281 void PlatformFontLinux::ComputeMetricsIfNecessary() { |
| 282 if (metrics_need_computation_) { | 282 if (metrics_need_computation_) { |
| 283 metrics_need_computation_ = false; | 283 metrics_need_computation_ = false; |
| 284 | 284 |
| 285 SkPaint paint; | 285 SkPaint paint; |
| 286 paint.setAntiAlias(false); | 286 paint.setAntiAlias(false); |
| 287 paint.setSubpixelText(false); | 287 paint.setSubpixelText(false); |
| 288 paint.setTextSize(font_size_pixels_); | 288 paint.setTextSize(font_size_pixels_); |
| 289 paint.setTypeface(typeface_.get()); | 289 paint.setTypeface(typeface_); |
| 290 paint.setFakeBoldText(weight_ >= Font::Weight::BOLD && | 290 paint.setFakeBoldText(weight_ >= Font::Weight::BOLD && |
| 291 !typeface_->isBold()); | 291 !typeface_->isBold()); |
| 292 paint.setTextSkewX((Font::ITALIC & style_) && !typeface_->isItalic() ? | 292 paint.setTextSkewX((Font::ITALIC & style_) && !typeface_->isItalic() ? |
| 293 -SK_Scalar1/4 : 0); | 293 -SK_Scalar1/4 : 0); |
| 294 SkPaint::FontMetrics metrics; | 294 SkPaint::FontMetrics metrics; |
| 295 paint.getFontMetrics(&metrics); | 295 paint.getFontMetrics(&metrics); |
| 296 ascent_pixels_ = SkScalarCeilToInt(-metrics.fAscent); | 296 ascent_pixels_ = SkScalarCeilToInt(-metrics.fAscent); |
| 297 height_pixels_ = ascent_pixels_ + SkScalarCeilToInt(metrics.fDescent); | 297 height_pixels_ = ascent_pixels_ + SkScalarCeilToInt(metrics.fDescent); |
| 298 cap_height_pixels_ = SkScalarCeilToInt(metrics.fCapHeight); | 298 cap_height_pixels_ = SkScalarCeilToInt(metrics.fCapHeight); |
| 299 average_width_pixels_ = SkScalarToDouble(metrics.fAvgCharWidth); | 299 average_width_pixels_ = SkScalarToDouble(metrics.fAvgCharWidth); |
| 300 } | 300 } |
| 301 } | 301 } |
| 302 | 302 |
| 303 //////////////////////////////////////////////////////////////////////////////// | 303 //////////////////////////////////////////////////////////////////////////////// |
| 304 // PlatformFont, public: | 304 // PlatformFont, public: |
| 305 | 305 |
| 306 // static | 306 // static |
| 307 PlatformFont* PlatformFont::CreateDefault() { | 307 PlatformFont* PlatformFont::CreateDefault() { |
| 308 return new PlatformFontLinux; | 308 return new PlatformFontLinux; |
| 309 } | 309 } |
| 310 | 310 |
| 311 // static | 311 // static |
| 312 PlatformFont* PlatformFont::CreateFromNameAndSize(const std::string& font_name, | 312 PlatformFont* PlatformFont::CreateFromNameAndSize(const std::string& font_name, |
| 313 int font_size) { | 313 int font_size) { |
| 314 return new PlatformFontLinux(font_name, font_size); | 314 return new PlatformFontLinux(font_name, font_size); |
| 315 } | 315 } |
| 316 | 316 |
| 317 } // namespace gfx | 317 } // namespace gfx |
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