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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/basictypes.h" | |
| 6 #include "base/compiler_specific.h" | |
| 7 #include "ui/gfx/canvas.h" | |
| 8 #include "ui/gfx/canvas_skia_paint.h" | |
| 9 #include "ui/gfx/rect.h" | |
| 10 | |
| 11 namespace gfx { | |
| 12 | |
| 13 // CanvasSkiaPaint | |
| 14 | |
| 15 CanvasSkiaPaint::CanvasSkiaPaint(GdkEventExpose* event) | |
| 16 : context_(NULL), | |
| 17 window_(event->window), | |
| 18 region_(gdk_region_copy(event->region)), | |
| 19 composite_alpha_(false) { | |
| 20 Init(true); | |
| 21 } | |
| 22 | |
| 23 CanvasSkiaPaint::CanvasSkiaPaint(GdkEventExpose* event, bool opaque) | |
| 24 : context_(NULL), | |
| 25 window_(event->window), | |
| 26 region_(gdk_region_copy(event->region)), | |
| 27 composite_alpha_(false) { | |
| 28 Init(opaque); | |
| 29 } | |
| 30 | |
| 31 CanvasSkiaPaint::~CanvasSkiaPaint() { | |
| 32 if (!is_empty()) { | |
| 33 platform_canvas()->restoreToCount(1); | |
| 34 | |
| 35 // Blit the dirty rect to the window. | |
| 36 CHECK(window_); | |
| 37 cairo_t* cr = gdk_cairo_create(window_); | |
| 38 CHECK(cr); | |
| 39 if (composite_alpha_) | |
| 40 cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); | |
| 41 cairo_surface_t* source_surface = cairo_get_target(context_); | |
| 42 CHECK(source_surface); | |
| 43 // Flush cairo's cache of the surface. | |
| 44 cairo_surface_mark_dirty(source_surface); | |
| 45 GdkRectangle bounds = rectangle(); | |
| 46 cairo_set_source_surface(cr, source_surface, bounds.x, bounds.y); | |
| 47 gdk_cairo_region(cr, region_); | |
| 48 cairo_fill(cr); | |
| 49 cairo_destroy(cr); | |
| 50 } | |
| 51 | |
| 52 gdk_region_destroy(region_); | |
| 53 } | |
| 54 | |
| 55 void CanvasSkiaPaint::Init(bool opaque) { | |
| 56 GdkRectangle bounds = rectangle(); | |
| 57 RecreateBackingCanvas(Size(bounds.width, bounds.height), 1.0f, opaque); | |
| 58 | |
| 59 skia::PlatformCanvas* canvas = platform_canvas(); | |
| 60 | |
| 61 // Need to translate so that the dirty region appears at the origin of the | |
| 62 // surface. | |
| 63 canvas->translate(-SkIntToScalar(bounds.x), -SkIntToScalar(bounds.y)); | |
| 64 | |
| 65 context_ = skia::BeginPlatformPaint(canvas); | |
| 66 } | |
| 67 | |
| 68 // CanvasSkiaPaintCairo | |
| 69 | |
| 70 CanvasSkiaPaintCairo::CanvasSkiaPaintCairo(cairo_t* cairo, | |
| 71 Size size, | |
| 72 bool opaque) | |
| 73 : context_(NULL), | |
| 74 dest_(cairo), | |
| 75 size_(size), | |
| 76 composite_alpha_(false) { | |
| 77 CHECK(dest_); | |
| 78 Init(opaque); | |
| 79 } | |
| 80 | |
| 81 CanvasSkiaPaintCairo::~CanvasSkiaPaintCairo() { | |
| 82 if (!is_empty()) { | |
| 83 platform_canvas()->restoreToCount(1); | |
| 84 | |
| 85 // Blit the dirty rect to the window. | |
| 86 if (composite_alpha_) | |
| 87 cairo_set_operator(dest_, CAIRO_OPERATOR_SOURCE); | |
| 88 cairo_surface_t* source_surface = cairo_get_target(context_); | |
| 89 CHECK(source_surface); | |
| 90 // Flush cairo's cache of the surface. | |
| 91 cairo_surface_mark_dirty(source_surface); | |
| 92 cairo_set_source_surface(dest_, source_surface, 0, 0); | |
| 93 GdkRectangle bounds = {0, 0, size_.width(), size_.height()}; | |
| 94 gdk_cairo_rectangle(dest_, &bounds); | |
| 95 cairo_fill(dest_); | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 void CanvasSkiaPaintCairo::Init(bool opaque) { | |
| 100 RecreateBackingCanvas(size_, 1.0f, opaque); | |
| 101 | |
| 102 context_ = skia::BeginPlatformPaint(platform_canvas()); | |
| 103 } | |
| 104 | |
| 105 } // namespace gfx | |
| 106 | |
| 107 | |
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Chromium Code Reviews
Issue 231733005:
Delete the GTK+ port of Chrome. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src