ui/base/cocoa/controls/hover_image_menu_button_cell.mm

   1 // Copyright 2013 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 "ui/base/cocoa/controls/hover_image_menu_button_cell.h"
   6
   7 @implementation HoverImageMenuButtonCell
   8
   9 @synthesize hovered = hovered_;
  10
  11 - (id)initTextCell:(NSString*)stringValue
  12          pullsDown:(BOOL)pullDown {
  13   if ((self = [super initTextCell:stringValue
  14                         pullsDown:pullDown])) {
  15     [self setUsesItemFromMenu:NO];
  16   }
  17   return self;
  18 }
  19
  20 - (void)setHoverImage:(NSImage*)newImage {
  21   if ([hoverImage_ isEqual:newImage])
  22     return;
  23
  24   hoverImage_.reset([newImage retain]);
  25   if (hovered_)
  26     [[self controlView] setNeedsDisplay:YES];
  27 }
  28
  29 - (NSImage*)hoverImage {
  30   return hoverImage_;
  31 }
  32
  33 - (void)setHovered:(BOOL)hovered {
  34   if (hovered_ == hovered)
  35     return;
  36
  37   hovered_ = hovered;
  38   [[self controlView] setNeedsDisplay:YES];
  39 }
  40
  41 - (NSImage*)imageToDraw {
  42   if ([self isHighlighted] && [self alternateImage])
  43     return [self alternateImage];
  44
  45   if ([self isHovered] && [self hoverImage])
  46     return [self hoverImage];
  47
  48   // Note that NSPopUpButtonCell updates the cell image when the [self menuItem]
  49   // changes.
  50   return [self image];
  51 }
  52
  53 - (void)setDefaultImage:(NSImage*)defaultImage {
  54   base::scoped_nsobject<NSMenuItem> buttonMenuItem([[NSMenuItem alloc] init]);
  55   [buttonMenuItem setImage:defaultImage];
  56   [self setMenuItem:buttonMenuItem];
  57 }
  58
  59 - (void)drawWithFrame:(NSRect)cellFrame
  60                inView:(NSView*)controlView {
  61   [[self imageToDraw] drawInRect:cellFrame
  62                         fromRect:NSZeroRect
  63                        operation:NSCompositeSourceOver
  64                         fraction:1.0
  65                   respectFlipped:YES
  66                            hints:nil];
  67 }
  68
  69 @end