canvas.cc revision 3551c9c881056c480085172ff9840cab31610854
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/canvas.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <limits> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/i18n/rtl.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "third_party/skia/include/core/SkBitmap.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "third_party/skia/include/effects/SkGradientShader.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/canvas.h" 143551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#include "ui/gfx/font_list.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/rect.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/size_conversions.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/skia_util.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/transform.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/canvas_skia_paint.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gfx { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)Canvas::Canvas(const Size& size, ui::ScaleFactor scale_factor, bool is_opaque) 273551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) : scale_factor_(scale_factor), 283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) canvas_(NULL) { 293551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) Size pixel_size = ToCeiledSize( 303551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) ScaleSize(size, ui::GetScaleFactorScale(scale_factor))); 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owned_canvas_ = skia::AdoptRef(skia::CreatePlatformCanvas(pixel_size.width(), 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pixel_size.height(), 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) is_opaque)); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_ = owned_canvas_.get(); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) || defined(OS_MACOSX) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // skia::PlatformCanvas instances are initialized to 0 by Cairo on Linux, but 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // uninitialized on Win and Mac. 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!is_opaque) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) owned_canvas_->clear(SkColorSetARGB(0, 0, 0, 0)); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkScalar scale = SkFloatToScalar(ui::GetScaleFactorScale(scale_factor)); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->scale(scale, scale); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 463551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)Canvas::Canvas(const ImageSkiaRep& image_rep, bool is_opaque) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : scale_factor_(image_rep.scale_factor()), 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owned_canvas_(skia::AdoptRef( 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) skia::CreatePlatformCanvas(image_rep.pixel_width(), 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) image_rep.pixel_height(), 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) is_opaque))), 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_(owned_canvas_.get()) { 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkScalar scale = SkFloatToScalar(ui::GetScaleFactorScale(scale_factor_)); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->scale(scale, scale); 553551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawImageInt(ImageSkia(image_rep), 0, 0); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Canvas::Canvas() 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : scale_factor_(ui::SCALE_FACTOR_100P), 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owned_canvas_(skia::AdoptRef(skia::CreatePlatformCanvas(0, 0, false))), 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_(owned_canvas_.get()) { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Canvas::~Canvas() { 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Canvas* Canvas::CreateCanvasWithoutScaling(SkCanvas* canvas, 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ui::ScaleFactor scale_factor) { 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return new Canvas(canvas, scale_factor); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 733551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::RecreateBackingCanvas(const Size& size, 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ui::ScaleFactor scale_factor, 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool is_opaque) { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scale_factor_ = scale_factor; 773551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) Size pixel_size = ToFlooredSize( 783551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) ScaleSize(size, ui::GetScaleFactorScale(scale_factor))); 792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) owned_canvas_ = skia::AdoptRef(skia::CreatePlatformCanvas(pixel_size.width(), 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pixel_size.height(), 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) is_opaque)); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_ = owned_canvas_.get(); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkScalar scale = SkFloatToScalar(ui::GetScaleFactorScale(scale_factor_)); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->scale(scale, scale); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 883551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::SizeStringInt(const base::string16& text, 893551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Font& font, 903551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int* width, 913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int* height, 923551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int line_height, 933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int flags) { 943551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SizeStringInt(text, FontList(font), width, height, line_height, flags); 953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 963551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// static 983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)int Canvas::GetStringWidth(const base::string16& text, 993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const FontList& font_list) { 1003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int width = 0, height = 0; 1013551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SizeStringInt(text, font_list, &width, &height, 0, NO_ELLIPSIS); 1023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return width; 1033551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1043551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1053551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// static 1063551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)int Canvas::GetStringWidth(const base::string16& text, const Font& font) { 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int width = 0, height = 0; 1083551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SizeStringInt(text, FontList(font), &width, &height, 0, NO_ELLIPSIS); 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return width; 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int Canvas::DefaultCanvasTextAlignment() { 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::i18n::IsRTL() ? TEXT_ALIGN_RIGHT : TEXT_ALIGN_LEFT; 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1173551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawStringWithHalo(const base::string16& text, 1183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Font& font, 1193551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SkColor text_color, 1203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SkColor halo_color_in, 1213551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int x, 1223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int y, 1233551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int w, 1243551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int h, 1253551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int flags) { 1263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawStringRectWithHalo(text, FontList(font), text_color, halo_color_in, 1273551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) Rect(x, y, w, h), flags); 1283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1293551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1303551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)ImageSkiaRep Canvas::ExtractImageRep() const { 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkBitmap& device_bitmap = canvas_->getDevice()->accessBitmap(false); 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make a bitmap to return, and a canvas to draw into it. We don't just want 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to call extractSubset or the copy constructor, since we want an actual copy 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // of the bitmap. 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkBitmap result; 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) device_bitmap.copyTo(&result, SkBitmap::kARGB_8888_Config); 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1393551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return ImageSkiaRep(result, scale_factor_); 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1423551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawDashedRect(const Rect& rect, SkColor color) { 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Create a 2D bitmap containing alternating on/off pixels - we do this 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // so that you never get two pixels of the same color around the edges 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // of the focus rect (this may mean that opposing edges of the rect may 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // have a dot pattern out of phase to each other). 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static SkColor last_color; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static SkBitmap* dots = NULL; 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!dots || last_color != color) { 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int col_pixels = 32; 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int row_pixels = 32; 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete dots; 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) last_color = color; 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dots = new SkBitmap; 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dots->setConfig(SkBitmap::kARGB_8888_Config, col_pixels, row_pixels); 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dots->allocPixels(); 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dots->eraseARGB(0, 0, 0, 0); 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t* dot = dots->getAddr32(0, 0); 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int i = 0; i < row_pixels; i++) { 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int u = 0; u < col_pixels; u++) { 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ((u % 2 + i % 2) % 2 != 0) { 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dot[i * row_pixels + u] = color; 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make a shader for the bitmap with an origin of the box we'll draw. This 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // shader is refcounted and will have an initial refcount of 1. 1722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) skia::RefPtr<SkShader> shader = skia::AdoptRef( 1732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SkShader::CreateBitmapShader( 1742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *dots, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode)); 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Assign the shader to the paint & release our reference. The paint will 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // now own the shader and the shader will be destroyed when the paint goes 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // out of scope. 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 1792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) paint.setShader(shader.get()); 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1813551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawRect(Rect(rect.x(), rect.y(), rect.width(), 1), paint); 1823551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawRect(Rect(rect.x(), rect.y() + rect.height() - 1, rect.width(), 1), 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint); 1843551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawRect(Rect(rect.x(), rect.y(), 1, rect.height()), paint); 1853551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawRect(Rect(rect.x() + rect.width() - 1, rect.y(), 1, rect.height()), 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint); 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::Save() { 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->save(); 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::SaveLayerAlpha(uint8 alpha) { 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->saveLayerAlpha(NULL, alpha); 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::SaveLayerAlpha(uint8 alpha, const Rect& layer_bounds) { 1993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SkRect bounds(RectToSkRect(layer_bounds)); 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->saveLayerAlpha(&bounds, alpha); 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::Restore() { 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->restore(); 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2073551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)bool Canvas::ClipRect(const Rect& rect) { 2083551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return canvas_->clipRect(RectToSkRect(rect)); 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool Canvas::ClipPath(const SkPath& path) { 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return canvas_->clipPath(path); 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2153551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)bool Canvas::GetClipBounds(Rect* bounds) { 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkRect out; 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool has_non_empty_clip = canvas_->getClipBounds(&out); 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bounds->SetRect(out.left(), out.top(), out.width(), out.height()); 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return has_non_empty_clip; 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::Translate(const Vector2d& offset) { 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->translate(SkIntToScalar(offset.x()), SkIntToScalar(offset.y())); 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::Scale(int x_scale, int y_scale) { 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->scale(SkIntToScalar(x_scale), SkIntToScalar(y_scale)); 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::DrawColor(SkColor color) { 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawColor(color, SkXfermode::kSrcOver_Mode); 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::DrawColor(SkColor color, SkXfermode::Mode mode) { 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawColor(color, mode); 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2383551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::FillRect(const Rect& rect, SkColor color) { 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FillRect(rect, color, SkXfermode::kSrcOver_Mode); 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2423551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::FillRect(const Rect& rect, 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkColor color, 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkXfermode::Mode mode) { 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setColor(color); 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setStyle(SkPaint::kFill_Style); 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setXfermodeMode(mode); 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawRect(rect, paint); 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2523551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawRect(const Rect& rect, SkColor color) { 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawRect(rect, color, SkXfermode::kSrcOver_Mode); 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2563551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawRect(const Rect& rect, 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkColor color, 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkXfermode::Mode mode) { 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setColor(color); 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setStyle(SkPaint::kStroke_Style); 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set a stroke width of 0, which will put us down the stroke rect path. If 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // we set a stroke width of 1, for example, this will internally create a 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // path and fill it, which causes problems near the edge of the canvas. 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setStrokeWidth(SkIntToScalar(0)); 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setXfermodeMode(mode); 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawRect(rect, paint); 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2713551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawRect(const Rect& rect, const SkPaint& paint) { 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawIRect(RectToSkIRect(rect), paint); 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2753551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawPoint(const Point& p1, const SkPaint& paint) { 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawPoint(SkIntToScalar(p1.x()), SkIntToScalar(p1.y()), paint); 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2793551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawLine(const Point& p1, const Point& p2, SkColor color) { 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setColor(color); 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setStrokeWidth(SkIntToScalar(1)); 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawLine(p1, p2, paint); 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2863551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawLine(const Point& p1, const Point& p2, const SkPaint& paint) { 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawLine(SkIntToScalar(p1.x()), SkIntToScalar(p1.y()), 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(p2.x()), SkIntToScalar(p2.y()), paint); 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawCircle(const Point& center_point, 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int radius, 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkPaint& paint) { 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawCircle(SkIntToScalar(center_point.x()), 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(center_point.y()), SkIntToScalar(radius), paint); 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawRoundRect(const Rect& rect, 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int radius, 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkPaint& paint) { 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawRoundRect(RectToSkRect(rect), SkIntToScalar(radius), 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(radius), paint); 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::DrawPath(const SkPath& path, const SkPaint& paint) { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawPath(path, paint); 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3093551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawFocusRect(const Rect& rect) { 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawDashedRect(rect, SK_ColorGRAY); 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3133551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawImageInt(const ImageSkia& image, int x, int y) { 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawImageInt(image, x, y, paint); 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawImageInt(const ImageSkia& image, int x, int y, uint8 a) { 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setAlpha(a); 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawImageInt(image, x, y, paint); 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3243551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawImageInt(const ImageSkia& image, 3253551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int x, 3263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int y, 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkPaint& paint) { 3283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const ImageSkiaRep& image_rep = GetImageRepToPaint(image); 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (image_rep.is_null()) 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkBitmap& bitmap = image_rep.sk_bitmap(); 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float bitmap_scale = image_rep.GetScale(); 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->save(); 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->scale(SkFloatToScalar(1.0f / bitmap_scale), 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkFloatToScalar(1.0f / bitmap_scale)); 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawBitmap(bitmap, 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkFloatToScalar(x * bitmap_scale), 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkFloatToScalar(y * bitmap_scale), 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &paint); 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->restore(); 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3443551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawImageInt(const ImageSkia& image, 3453551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_x, 3463551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_y, 3473551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_w, 3483551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_h, 3493551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_x, 3503551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_y, 3513551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_w, 3523551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_h, 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool filter) { 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint p; 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawImageInt(image, src_x, src_y, src_w, src_h, dest_x, dest_y, 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dest_w, dest_h, filter, p); 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3593551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawImageInt(const ImageSkia& image, 3603551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_x, 3613551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_y, 3623551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_w, 3633551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_h, 3643551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_x, 3653551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_y, 3663551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_w, 3673551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_h, 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool filter, 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkPaint& paint) { 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG_ASSERT(src_x + src_w < std::numeric_limits<int16_t>::max() && 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) src_y + src_h < std::numeric_limits<int16_t>::max()); 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (src_w <= 0 || src_h <= 0) { 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED() << "Attempting to draw bitmap from an empty rect!"; 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!IntersectsClipRectInt(dest_x, dest_y, dest_w, dest_h)) 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float user_scale_x = static_cast<float>(dest_w) / src_w; 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float user_scale_y = static_cast<float>(dest_h) / src_h; 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3833551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const ImageSkiaRep& image_rep = GetImageRepToPaint(image, 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) user_scale_x, user_scale_y); 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (image_rep.is_null()) 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkRect dest_rect = { SkIntToScalar(dest_x), 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(dest_y), 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(dest_x + dest_w), 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(dest_y + dest_h) }; 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (src_w == dest_w && src_h == dest_h && 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) user_scale_x == 1.0f && user_scale_y == 1.0f && 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) image_rep.scale_factor() == ui::SCALE_FACTOR_100P) { 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Workaround for apparent bug in Skia that causes image to occasionally 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // shift. 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIRect src_rect = { src_x, src_y, src_x + src_w, src_y + src_h }; 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkBitmap& bitmap = image_rep.sk_bitmap(); 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawBitmapRect(bitmap, &src_rect, dest_rect, &paint); 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make a bitmap shader that contains the bitmap we want to draw. This is 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // basically what SkCanvas.drawBitmap does internally, but it gives us 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // more control over quality and will use the mipmap in the source image if 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // it has one, whereas drawBitmap won't. 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkMatrix shader_scale; 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shader_scale.setScale(SkFloatToScalar(user_scale_x), 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkFloatToScalar(user_scale_y)); 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shader_scale.preTranslate(SkIntToScalar(-src_x), SkIntToScalar(-src_y)); 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shader_scale.postTranslate(SkIntToScalar(dest_x), SkIntToScalar(dest_y)); 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4143551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) skia::RefPtr<SkShader> shader = CreateImageRepShader( 4152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) image_rep, 4162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SkShader::kRepeat_TileMode, 4172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) shader_scale); 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set up our paint to use the shader & release our reference (now just owned 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // by the paint). 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint p(paint); 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) p.setFilterBitmap(filter); 4232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) p.setShader(shader.get()); 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The rect will be filled by the bitmap. 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawRect(dest_rect, p); 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4293551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawImageInPath(const ImageSkia& image, 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int x, 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int y, 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkPath& path, 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkPaint& paint) { 4343551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const ImageSkiaRep& image_rep = GetImageRepToPaint(image); 4355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (image_rep.is_null()) 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkMatrix matrix; 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) matrix.setTranslate(SkIntToScalar(x), SkIntToScalar(y)); 4403551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) skia::RefPtr<SkShader> shader = CreateImageRepShader( 4412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) image_rep, 4422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SkShader::kRepeat_TileMode, 4432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) matrix); 4445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint p(paint); 4462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) p.setShader(shader.get()); 4475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawPath(path, p); 4485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4503551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawStringRect(const base::string16& text, 4513551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const FontList& font_list, 4523551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SkColor color, 4533551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Rect& display_rect) { 4543551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawStringRectWithFlags(text, font_list, color, display_rect, 4553551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DefaultCanvasTextAlignment()); 4563551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 4573551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 4583551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawStringRectWithFlags(const base::string16& text, 4593551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const FontList& font_list, 4603551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SkColor color, 4613551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Rect& display_rect, 4623551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int flags) { 4633551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawStringRectWithShadows(text, font_list, color, display_rect, 0, flags, 4643551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) ShadowValues()); 4653551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 4663551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 467868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)void Canvas::DrawStringInt(const base::string16& text, 4683551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Font& font, 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkColor color, 4703551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int x, 4713551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int y, 4723551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int w, 4733551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int h) { 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawStringInt(text, font, color, x, y, w, h, DefaultCanvasTextAlignment()); 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 477868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)void Canvas::DrawStringInt(const base::string16& text, 4783551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Font& font, 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkColor color, 4803551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Rect& display_rect) { 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DrawStringInt(text, font, color, display_rect.x(), display_rect.y(), 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) display_rect.width(), display_rect.height()); 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)void Canvas::DrawStringInt(const base::string16& text, 4863551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Font& font, 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkColor color, 4883551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int x, 4893551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int y, 4903551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int w, 4913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int h, 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags) { 4933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawStringWithShadows(text, font, color, Rect(x, y, w, h), 0, flags, 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ShadowValues()); 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::DrawStringWithShadows(const base::string16& text, 4983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Font& font, 4993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SkColor color, 5003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const Rect& text_bounds, 5013551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int line_height, 5023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int flags, 5033551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const ShadowValues& shadows) { 5043551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DrawStringRectWithShadows(text, FontList(font), color, text_bounds, 5053551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) line_height, flags, shadows); 5063551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 5073551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 5083551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::TileImageInt(const ImageSkia& image, 5093551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int x, 5103551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int y, 5113551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int w, 5123551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int h) { 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) TileImageInt(image, 0, 0, x, y, w, h); 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5163551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::TileImageInt(const ImageSkia& image, 5173551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_x, 5183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_y, 5193551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_x, 5203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_y, 5213551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int w, 5223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int h) { 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) TileImageInt(image, src_x, src_y, 1.0f, 1.0f, dest_x, dest_y, w, h); 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void Canvas::TileImageInt(const ImageSkia& image, 5273551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_x, 5283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int src_y, 5293551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) float tile_scale_x, 5303551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) float tile_scale_y, 5313551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_x, 5323551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int dest_y, 5333551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int w, 5343551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) int h) { 5355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!IntersectsClipRectInt(dest_x, dest_y, w, h)) 5365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5383551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const ImageSkiaRep& image_rep = GetImageRepToPaint( 5393551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) image, tile_scale_x, tile_scale_y); 5405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (image_rep.is_null()) 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkMatrix shader_scale; 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shader_scale.setScale(SkFloatToScalar(tile_scale_x), 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkFloatToScalar(tile_scale_y)); 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shader_scale.preTranslate(SkIntToScalar(-src_x), SkIntToScalar(-src_y)); 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shader_scale.postTranslate(SkIntToScalar(dest_x), SkIntToScalar(dest_y)); 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5493551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) skia::RefPtr<SkShader> shader = CreateImageRepShader( 5502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) image_rep, 5512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SkShader::kRepeat_TileMode, 5522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) shader_scale); 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 5552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) paint.setShader(shader.get()); 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setXfermodeMode(SkXfermode::kSrcOver_Mode); 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkRect dest_rect = { SkIntToScalar(dest_x), 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(dest_y), 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(dest_x + w), 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(dest_y + h) }; 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->drawRect(dest_rect, paint); 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5653551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)NativeDrawingContext Canvas::BeginPlatformPaint() { 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return skia::BeginPlatformPaint(canvas_); 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::EndPlatformPaint() { 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) skia::EndPlatformPaint(canvas_); 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Canvas::Transform(const gfx::Transform& transform) { 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_->concat(transform.matrix()); 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Canvas::Canvas(SkCanvas* canvas, ui::ScaleFactor scale_factor) 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : scale_factor_(scale_factor), 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) owned_canvas_(), 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas_(canvas) { 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(canvas); 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool Canvas::IntersectsClipRectInt(int x, int y, int w, int h) { 5855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkRect clip; 5865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return canvas_->getClipBounds(&clip) && 5875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) clip.intersect(SkIntToScalar(x), SkIntToScalar(y), SkIntToScalar(x + w), 5885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkIntToScalar(y + h)); 5895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)bool Canvas::IntersectsClipRect(const Rect& rect) { 5925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return IntersectsClipRectInt(rect.x(), rect.y(), 5935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rect.width(), rect.height()); 5945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5963551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)const ImageSkiaRep& Canvas::GetImageRepToPaint(const ImageSkia& image) const { 5975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GetImageRepToPaint(image, 1.0f, 1.0f); 5985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)const ImageSkiaRep& Canvas::GetImageRepToPaint( 6013551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const ImageSkia& image, 6025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float user_additional_scale_x, 6035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float user_additional_scale_y) const { 6043551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const ImageSkiaRep& image_rep = image.GetRepresentation(scale_factor_); 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!image_rep.is_null()) { 6075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkMatrix m = canvas_->getTotalMatrix(); 6085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float scale_x = SkScalarToFloat(SkScalarAbs(m.getScaleX())) * 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) user_additional_scale_x; 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float scale_y = SkScalarToFloat(SkScalarAbs(m.getScaleY())) * 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) user_additional_scale_y; 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float bitmap_scale = image_rep.GetScale(); 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (scale_x < bitmap_scale || scale_y < bitmap_scale) 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const_cast<SkBitmap&>(image_rep.sk_bitmap()).buildMipMap(); 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return image_rep; 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gfx 622