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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" |
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21 #include "ui/gfx/geometry/size_conversions.h" | 21 #include "ui/gfx/geometry/size_conversions.h" |
22 #include "ui/gfx/scoped_canvas.h" | 22 #include "ui/gfx/scoped_canvas.h" |
23 #include "ui/gfx/skia_util.h" | 23 #include "ui/gfx/skia_util.h" |
24 #include "ui/gfx/transform.h" | 24 #include "ui/gfx/transform.h" |
25 | 25 |
26 namespace gfx { | 26 namespace gfx { |
27 | 27 |
28 Canvas::Canvas(const Size& size, float image_scale, bool is_opaque) | 28 Canvas::Canvas(const Size& size, float image_scale, bool is_opaque) |
29 : image_scale_(image_scale) { | 29 : image_scale_(image_scale) { |
30 Size pixel_size = ScaleToCeiledSize(size, image_scale); | 30 Size pixel_size = ScaleToCeiledSize(size, image_scale); |
31 canvas_ = sk_sp<SkCanvas>(skia::CreatePlatformCanvas(pixel_size.width(), | 31 canvas_owner_ = skia::CreatePlatformCanvas(pixel_size.width(), |
32 pixel_size.height(), | 32 pixel_size.height(), is_opaque); |
33 is_opaque)); | 33 canvas_ = canvas_owner_.get(); |
| 34 |
34 #if !defined(USE_CAIRO) | 35 #if !defined(USE_CAIRO) |
35 // skia::PlatformCanvas instances are initialized to 0 by Cairo, but | 36 // skia::PlatformCanvas instances are initialized to 0 by Cairo, but |
36 // uninitialized on other platforms. | 37 // uninitialized on other platforms. |
37 if (!is_opaque) | 38 if (!is_opaque) |
38 canvas_->clear(SkColorSetARGB(0, 0, 0, 0)); | 39 canvas_->clear(SkColorSetARGB(0, 0, 0, 0)); |
39 #endif | 40 #endif |
40 | 41 |
41 SkScalar scale_scalar = SkFloatToScalar(image_scale); | 42 SkScalar scale_scalar = SkFloatToScalar(image_scale); |
42 canvas_->scale(scale_scalar, scale_scalar); | 43 canvas_->scale(scale_scalar, scale_scalar); |
43 } | 44 } |
44 | 45 |
45 Canvas::Canvas() | 46 Canvas::Canvas() |
46 : image_scale_(1.f), | 47 : image_scale_(1.f), |
47 canvas_(sk_sp<SkCanvas>(skia::CreatePlatformCanvas(0, 0, false))) {} | 48 canvas_owner_(skia::CreatePlatformCanvas(0, 0, false)), |
| 49 canvas_(canvas_owner_.get()) {} |
48 | 50 |
49 Canvas::Canvas(sk_sp<SkCanvas> canvas, float image_scale) | 51 Canvas::Canvas(SkCanvas* canvas, float image_scale) |
50 : image_scale_(image_scale), canvas_(std::move(canvas)) { | 52 : image_scale_(image_scale), canvas_(canvas) { |
51 DCHECK(canvas_); | 53 DCHECK(canvas_); |
52 } | 54 } |
53 | 55 |
54 Canvas::~Canvas() { | 56 Canvas::~Canvas() { |
55 } | 57 } |
56 | 58 |
57 void Canvas::RecreateBackingCanvas(const Size& size, | 59 void Canvas::RecreateBackingCanvas(const Size& size, |
58 float image_scale, | 60 float image_scale, |
59 bool is_opaque) { | 61 bool is_opaque) { |
60 image_scale_ = image_scale; | 62 image_scale_ = image_scale; |
61 Size pixel_size = ScaleToFlooredSize(size, image_scale); | 63 Size pixel_size = ScaleToFlooredSize(size, image_scale); |
62 canvas_ = sk_sp<SkCanvas>(skia::CreatePlatformCanvas(pixel_size.width(), | 64 canvas_owner_ = skia::CreatePlatformCanvas(pixel_size.width(), |
63 pixel_size.height(), | 65 pixel_size.height(), is_opaque); |
64 is_opaque)); | 66 canvas_ = canvas_owner_.get(); |
| 67 |
65 SkScalar scale_scalar = SkFloatToScalar(image_scale); | 68 SkScalar scale_scalar = SkFloatToScalar(image_scale); |
66 canvas_->scale(scale_scalar, scale_scalar); | 69 canvas_->scale(scale_scalar, scale_scalar); |
67 } | 70 } |
68 | 71 |
69 // static | 72 // static |
70 void Canvas::SizeStringInt(const base::string16& text, | 73 void Canvas::SizeStringInt(const base::string16& text, |
71 const FontList& font_list, | 74 const FontList& font_list, |
72 int* width, | 75 int* width, |
73 int* height, | 76 int* height, |
74 int line_height, | 77 int line_height, |
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598 p.setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality); | 601 p.setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality); |
599 p.setShader(CreateImageRepShaderForScale( | 602 p.setShader(CreateImageRepShaderForScale( |
600 image_rep, SkShader::kRepeat_TileMode, shader_scale, | 603 image_rep, SkShader::kRepeat_TileMode, shader_scale, |
601 remove_image_scale ? image_rep.scale() : 1.f)); | 604 remove_image_scale ? image_rep.scale() : 1.f)); |
602 | 605 |
603 // The rect will be filled by the bitmap. | 606 // The rect will be filled by the bitmap. |
604 canvas_->drawRect(dest_rect, p); | 607 canvas_->drawRect(dest_rect, p); |
605 } | 608 } |
606 | 609 |
607 } // namespace gfx | 610 } // namespace gfx |
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