我正在使用带有pullDown的NSPopUpButton,并在菜单中添加了一些菜单项(图像和标题),并将该菜单添加到Button单元格中。
最初我将菜单的第一个菜单项指定给要在NSPopUpButton中显示的Button单元格。
当我点击NSPopUpButton时,会显示一个菜单,其中包含我之前添加的所有项目,当我从菜单中选择一个项目时,其数据不会更新为NSPopUpButton。即标题正在更新,图像不是..
任何人都可以建议我如何解决这个问题
我写的代码:
In ButtonCell class:
NSMenu* newMenu = [[NSMenu alloc] initWithTitle:@""];
[newMenu setAutoenablesItems:YES];
[[self optionMenuController] insertItemsInMenu:newMenu atIndex:0];
if(isFromSetOption)
{
[self setMenuItem:[newMenu itemAtIndex:1]];
isFromSetOption = NO;
}
//[newMenu insertItemWithTitle:@"dummy" action:nil keyEquivalent:@"" atIndex:0];
[self setMenu:newMenu];
[newMenu release];
In OptionMenuController :
- (void) insertItemsInMenu:(NSMenu*)menu atIndex:(NSInteger)insertIndex
{
for( NSMenuItem* item in [self createMenuItems] )
{
[menu insertItem:item atIndex:insertIndex++];
}
}
- (NSMenuItem*) menuItemForOption:(AMOptionMenuItem*)option inGroup:(AMOptionMenuItem*)group
{
NSMenuItem *menuItem = [[NSMenuItem alloc] initWithTitle:[option title] action:@selector(optionChosen:) keyEquivalent:@""];
[menuItem setIndentationLevel:1];
[menuItem setTarget:self];
[menuItem setEnabled:YES];
[menuItem setImage:[NSImage imageNamed:[option imageTitle]]];
/* if([[option identifier] isEqualToString:@"Color"])
{
[menuItem setImage:[NSImage imageNamed:@"cabinet"]];
}
else{
[menuItem setImage:[NSImage imageNamed:@"YieldIcon.png"]];
}
*/
NSString* keypath = [NSString stringWithFormat:@"%@.is%@", [group identifier], [option identifier]];
[menuItem setRepresentedObject:keypath];
NSDictionary *bindingOptions = nil;
[menuItem bind:@"value" toObject:self withKeyPath:keypath options:bindingOptions];
return [menuItem autorelease];
}