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MAC OS X Cocoa NSToolbar 的使用(1) //向NSToolbar控件添加自定义的NSToolbarItem项
- (NSToolbarItem *) toolbar: (NSToolbar *)toolbar itemForItemIdentifier:
(NSString *) itemIdent willBeInsertedIntoToolbar:(BOOL) willBeInserted {
// Required delegate method Given an item identifier, self method
returns an item
// The toolbar will use self method to obtain toolbar items that can
be displayed in the customization sheet, or in the toolbar itself
NSToolbarItem *toolbarItem = [[[NSToolbarItem alloc]
initWithItemIdentifier: itemIdent] autorelease];
if ([itemIdent isEqual: SquareDotViewItemIdentifier]) {
SquareDotView *dv = [[SquareDotView alloc] initWithFrame:
NSMakeRect(0,0,100,32)];
[toolbarItem setView: dv];
// set a reasonable minimum size
[toolbarItem setMinSize: NSMakeSize(100,32)];
// set a maximum size that allows us to stretch.
[toolbarItem setMaxSize: NSMakeSize(300,32)];
[toolbarItem setLabel: @"Dot View"];
[toolbarItem setPaletteLabel: @"A Dot View"];
[toolbarItem setToolTip: @"This is a dot view"];
}
.....
}
//返回单击后能被选中且为高亮显示的NSToolbarItem的集合。
- (NSArray *)toolbarSelectableItemIdentifiers:(NSToolbar *)toolbar
{// return an array of all the items that can be highlight display after selected
return [NSArray arrayWithObjects:
NSColorToolbarItemIdentifier,
NSFontToolbarItemIdentifier,nil];
}
//返回程序加载后的默认的NSToolbarItem的集合。
- (NSArray *)toolbarDefaultItemIdentifiers:(NSToolbar *)toolbar
{ // return an array of the items found in the default toolbar
return [NSArray arrayWithObjects:
NSToolbarSeparatorItemIdentifier,
NSFontToolbarItemIdentifier,
NSToolbarCustomizeToolbarItemIdentifier,
nil];
}
//以下是作为NSToolbarItem出现的自定义类
The "SquareDotView" class:
@interface SquareDotView : NSView {
@private
float sdSide;
NSPoint sdLocation;
}
@end
@implementation SquareDotView
#define START_SIDE 10
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