MAC OS X Cocoa NSToolbar 的使用

王朝other·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

//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

#define START_LOCATION NSMakePoint(10,10)

- (id)initWithFrame:(NSRect)frame {

self = [super initWithFrame:frame];

if (self) {

sdSide = START_SIDE;

sdLocation = START_LOCATION;

}

return self;

}

- (void)mouseDown:(NSEvent *)theEvent {

sdLocation = [self convertPoint: [theEvent locationInWindow]

fromView: nil];

[self setNeedsDisplay: YES];

}

- (void)drawRect:(NSRect)rect {

[[NSColor redColor] set];

[[NSBezierPath bezierPathWithRect: NSMakeRect(sdLocation.x,

sdLocation.y, sdSide, sdSide)] fill];

[[NSColor blackColor] set];

[[NSBezierPath bezierPathWithRect: [self bounds]] stroke];

}

- (id)initWithCoder:(NSCoder *)coder {

self = [super initWithCoder: coder];

if (self) {

[coder decodeValuesOfObjCTypes: "fff", &sdSide, &sdLocation.x,

&sdLocation.y];

}

return self;

}

- (void)encodeWithCoder:(NSCoder *)coder {

[super encodeWithCoder: coder];

if (self) {

[coder encodeValuesOfObjCTypes: "fff", &sdSide, &sdLocation.x,

&sdLocation.y];

}

}

@end

 
 
 
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