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      1 // Copyright (c) 2011 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 #import "chrome/browser/ui/cocoa/hover_image_button.h"
      6 
      7 #include "base/memory/scoped_nsobject.h"
      8 #include "grit/generated_resources.h"
      9 #include "ui/base/l10n/l10n_util.h"
     10 
     11 @implementation HoverImageButton
     12 
     13 - (void)drawRect:(NSRect)rect {
     14   if (hoverState_ == kHoverStateMouseDown && pressedImage_) {
     15     [super setImage:pressedImage_.get()];
     16     [super setAlphaValue:pressedOpacity_];
     17   } else if (hoverState_ == kHoverStateMouseOver && hoverImage_) {
     18     [super setImage:hoverImage_.get()];
     19     [super setAlphaValue:hoverOpacity_];
     20   } else {
     21     [super setImage:defaultImage_.get()];
     22     [super setAlphaValue:defaultOpacity_];
     23   }
     24 
     25   [super drawRect:rect];
     26 }
     27 
     28 - (void)setDefaultImage:(NSImage*)image {
     29   defaultImage_.reset([image retain]);
     30 }
     31 
     32 - (void)setDefaultOpacity:(float)opacity {
     33   defaultOpacity_ = opacity;
     34 }
     35 
     36 - (void)setHoverImage:(NSImage*)image {
     37   hoverImage_.reset([image retain]);
     38 }
     39 
     40 - (void)setHoverOpacity:(float)opacity {
     41   hoverOpacity_ = opacity;
     42 }
     43 
     44 - (void)setPressedImage:(NSImage*)image {
     45   pressedImage_.reset([image retain]);
     46 }
     47 
     48 - (void)setPressedOpacity:(float)opacity {
     49   pressedOpacity_ = opacity;
     50 }
     51 
     52 @end
     53