Home | History | Annotate | Download | only in image
      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 "ui/gfx/image/image_skia_rep.h"
      6 
      7 #include "base/logging.h"
      8 
      9 namespace gfx {
     10 
     11 ImageSkiaRep::ImageSkiaRep() : scale_(0.0f) {
     12 }
     13 
     14 ImageSkiaRep::~ImageSkiaRep() {
     15 }
     16 
     17 ImageSkiaRep::ImageSkiaRep(const gfx::Size& size, float scale) : scale_(scale) {
     18   bitmap_.setConfig(SkBitmap::kARGB_8888_Config,
     19                     static_cast<int>(size.width() * this->scale()),
     20                     static_cast<int>(size.height() * this->scale()));
     21   bitmap_.allocPixels();
     22   bitmap_.eraseColor(SK_ColorRED);
     23 }
     24 
     25 ImageSkiaRep::ImageSkiaRep(const SkBitmap& src, float scale)
     26     : bitmap_(src),
     27       scale_(scale) {
     28 }
     29 
     30 int ImageSkiaRep::GetWidth() const {
     31   return static_cast<int>(bitmap_.width() / scale());
     32 }
     33 
     34 int ImageSkiaRep::GetHeight() const {
     35   return static_cast<int>(bitmap_.height() / scale());
     36 }
     37 
     38 void ImageSkiaRep::SetScaled() {
     39   DCHECK_EQ(0.0f, scale_);
     40   if (scale_ == 0.0f)
     41     scale_ = 1.0f;
     42 }
     43 
     44 }  // namespace gfx
     45