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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/canvas.h" | 5 #include "ui/gfx/canvas.h" |
| 6 | 6 |
| 7 #include <cmath> | 7 #include <cmath> |
| 8 #include <limits> | 8 #include <limits> |
| 9 | 9 |
| 10 #include "base/i18n/rtl.h" | 10 #include "base/i18n/rtl.h" |
| 11 #include "base/logging.h" | 11 #include "base/logging.h" |
| 12 #include "third_party/skia/include/core/SkBitmap.h" | 12 #include "third_party/skia/include/core/SkBitmap.h" |
| 13 #include "third_party/skia/include/core/SkPath.h" | 13 #include "third_party/skia/include/core/SkPath.h" |
| 14 #include "third_party/skia/include/core/SkRefCnt.h" |
| 14 #include "third_party/skia/include/effects/SkGradientShader.h" | 15 #include "third_party/skia/include/effects/SkGradientShader.h" |
| 15 #include "ui/gfx/font_list.h" | 16 #include "ui/gfx/font_list.h" |
| 16 #include "ui/gfx/geometry/rect.h" | 17 #include "ui/gfx/geometry/rect.h" |
| 17 #include "ui/gfx/geometry/rect_conversions.h" | 18 #include "ui/gfx/geometry/rect_conversions.h" |
| 18 #include "ui/gfx/geometry/rect_f.h" | 19 #include "ui/gfx/geometry/rect_f.h" |
| 19 #include "ui/gfx/geometry/safe_integer_conversions.h" | 20 #include "ui/gfx/geometry/safe_integer_conversions.h" |
| 20 #include "ui/gfx/geometry/size_conversions.h" | 21 #include "ui/gfx/geometry/size_conversions.h" |
| 21 #include "ui/gfx/scoped_canvas.h" | 22 #include "ui/gfx/scoped_canvas.h" |
| 22 #include "ui/gfx/skia_util.h" | 23 #include "ui/gfx/skia_util.h" |
| 23 #include "ui/gfx/transform.h" | 24 #include "ui/gfx/transform.h" |
| 24 | 25 |
| 25 namespace gfx { | 26 namespace gfx { |
| 26 | 27 |
| 27 Canvas::Canvas(const Size& size, float image_scale, bool is_opaque) | 28 Canvas::Canvas(const Size& size, float image_scale, bool is_opaque) |
| 28 : image_scale_(image_scale) { | 29 : image_scale_(image_scale) { |
| 29 Size pixel_size = ScaleToCeiledSize(size, image_scale); | 30 Size pixel_size = ScaleToCeiledSize(size, image_scale); |
| 30 canvas_ = skia::AdoptRef(skia::CreatePlatformCanvas(pixel_size.width(), | 31 canvas_ = sk_sp<SkCanvas>(skia::CreatePlatformCanvas(pixel_size.width(), |
| 31 pixel_size.height(), | 32 pixel_size.height(), |
| 32 is_opaque)); | 33 is_opaque)); |
| 33 #if !defined(USE_CAIRO) | 34 #if !defined(USE_CAIRO) |
| 34 // skia::PlatformCanvas instances are initialized to 0 by Cairo, but | 35 // skia::PlatformCanvas instances are initialized to 0 by Cairo, but |
| 35 // uninitialized on other platforms. | 36 // uninitialized on other platforms. |
| 36 if (!is_opaque) | 37 if (!is_opaque) |
| 37 canvas_->clear(SkColorSetARGB(0, 0, 0, 0)); | 38 canvas_->clear(SkColorSetARGB(0, 0, 0, 0)); |
| 38 #endif | 39 #endif |
| 39 | 40 |
| 40 SkScalar scale_scalar = SkFloatToScalar(image_scale); | 41 SkScalar scale_scalar = SkFloatToScalar(image_scale); |
| 41 canvas_->scale(scale_scalar, scale_scalar); | 42 canvas_->scale(scale_scalar, scale_scalar); |
| 42 } | 43 } |
| 43 | 44 |
| 44 Canvas::Canvas(const ImageSkiaRep& image_rep, bool is_opaque) | 45 Canvas::Canvas(const ImageSkiaRep& image_rep, bool is_opaque) |
| 45 : image_scale_(image_rep.scale()), | 46 : image_scale_(image_rep.scale()), |
| 46 canvas_(skia::AdoptRef( | 47 canvas_(sk_sp<SkCanvas>( |
| 47 skia::CreatePlatformCanvas(image_rep.pixel_width(), | 48 skia::CreatePlatformCanvas(image_rep.pixel_width(), |
| 48 image_rep.pixel_height(), | 49 image_rep.pixel_height(), |
| 49 is_opaque))) { | 50 is_opaque))) { |
| 50 SkScalar scale_scalar = SkFloatToScalar(image_scale_); | 51 SkScalar scale_scalar = SkFloatToScalar(image_scale_); |
| 51 canvas_->scale(scale_scalar, scale_scalar); | 52 canvas_->scale(scale_scalar, scale_scalar); |
| 52 DrawImageInt(ImageSkia(image_rep), 0, 0); | 53 DrawImageInt(ImageSkia(image_rep), 0, 0); |
| 53 } | 54 } |
| 54 | 55 |
| 55 Canvas::Canvas() | 56 Canvas::Canvas() |
| 56 : image_scale_(1.f), | 57 : image_scale_(1.f), |
| 57 canvas_(skia::AdoptRef(skia::CreatePlatformCanvas(0, 0, false))) {} | 58 canvas_(sk_sp<SkCanvas>(skia::CreatePlatformCanvas(0, 0, false))) {} |
| 58 | 59 |
| 59 Canvas::Canvas(const skia::RefPtr<SkCanvas>& canvas, float image_scale) | 60 Canvas::Canvas(const sk_sp<SkCanvas> canvas, float image_scale) |
| 60 : image_scale_(image_scale), canvas_(canvas) { | 61 : image_scale_(image_scale), canvas_(std::move(canvas)) { |
| 61 DCHECK(canvas); | 62 DCHECK(canvas); |
| 62 } | 63 } |
| 63 | 64 |
| 64 Canvas::~Canvas() { | 65 Canvas::~Canvas() { |
| 65 } | 66 } |
| 66 | 67 |
| 67 void Canvas::RecreateBackingCanvas(const Size& size, | 68 void Canvas::RecreateBackingCanvas(const Size& size, |
| 68 float image_scale, | 69 float image_scale, |
| 69 bool is_opaque) { | 70 bool is_opaque) { |
| 70 image_scale_ = image_scale; | 71 image_scale_ = image_scale; |
| 71 Size pixel_size = ScaleToFlooredSize(size, image_scale); | 72 Size pixel_size = ScaleToFlooredSize(size, image_scale); |
| 72 canvas_ = skia::AdoptRef(skia::CreatePlatformCanvas(pixel_size.width(), | 73 canvas_ = sk_sp<SkCanvas>(skia::CreatePlatformCanvas(pixel_size.width(), |
| 73 pixel_size.height(), | 74 pixel_size.height(), |
| 74 is_opaque)); | 75 is_opaque)); |
| 75 SkScalar scale_scalar = SkFloatToScalar(image_scale); | 76 SkScalar scale_scalar = SkFloatToScalar(image_scale); |
| 76 canvas_->scale(scale_scalar, scale_scalar); | 77 canvas_->scale(scale_scalar, scale_scalar); |
| 77 } | 78 } |
| 78 | 79 |
| 79 // static | 80 // static |
| 80 void Canvas::SizeStringInt(const base::string16& text, | 81 void Canvas::SizeStringInt(const base::string16& text, |
| 81 const FontList& font_list, | 82 const FontList& font_list, |
| 82 int* width, | 83 int* width, |
| 83 int* height, | 84 int* height, |
| 84 int line_height, | 85 int line_height, |
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| 558 p.setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality); | 559 p.setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality); |
| 559 p.setShader(CreateImageRepShaderForScale( | 560 p.setShader(CreateImageRepShaderForScale( |
| 560 image_rep, SkShader::kRepeat_TileMode, shader_scale, | 561 image_rep, SkShader::kRepeat_TileMode, shader_scale, |
| 561 remove_image_scale ? image_rep.scale() : 1.f)); | 562 remove_image_scale ? image_rep.scale() : 1.f)); |
| 562 | 563 |
| 563 // The rect will be filled by the bitmap. | 564 // The rect will be filled by the bitmap. |
| 564 canvas_->drawRect(dest_rect, p); | 565 canvas_->drawRect(dest_rect, p); |
| 565 } | 566 } |
| 566 | 567 |
| 567 } // namespace gfx | 568 } // namespace gfx |
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