1 // Copyright (c) 2010 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 <cmath> 6 7 #import "chrome/browser/ui/cocoa/location_bar/image_decoration.h" 8 9 #import "chrome/browser/ui/cocoa/image_utils.h" 10 11 ImageDecoration::ImageDecoration() { 12 } 13 14 ImageDecoration::~ImageDecoration() { 15 } 16 17 NSImage* ImageDecoration::GetImage() { 18 return image_; 19 } 20 21 void ImageDecoration::SetImage(NSImage* image) { 22 image_.reset([image retain]); 23 } 24 25 NSRect ImageDecoration::GetDrawRectInFrame(NSRect frame) { 26 NSImage* image = GetImage(); 27 if (!image) 28 return frame; 29 30 // Center the image within the frame. 31 const CGFloat delta_height = NSHeight(frame) - [image size].height; 32 const CGFloat y_inset = std::floor(delta_height / 2.0); 33 const CGFloat delta_width = NSWidth(frame) - [image size].width; 34 const CGFloat x_inset = std::floor(delta_width / 2.0); 35 return NSInsetRect(frame, x_inset, y_inset); 36 } 37 38 CGFloat ImageDecoration::GetWidthForSpace(CGFloat width) { 39 NSImage* image = GetImage(); 40 if (image) { 41 const CGFloat image_width = [image size].width; 42 if (image_width <= width) 43 return image_width; 44 } 45 return kOmittedWidth; 46 } 47 48 void ImageDecoration::DrawInFrame(NSRect frame, NSView* control_view) { 49 [GetImage() drawInRect:GetDrawRectInFrame(frame) 50 fromRect:NSZeroRect // Entire image 51 operation:NSCompositeSourceOver 52 fraction:1.0 53 neverFlipped:YES]; 54 } 55
