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請求書を印刷するアプリケーションを開発しています。NSTextFieldsをドラッグ可能にして、Invoice-fieldsと一致させるために、次のコードを記述します。動作しますが、ウィンドウのサイズを変更すると、NSTextFieldが初期位置に戻ります。私に何ができる？

@interface DragTextField : NSTextField <NSWindowDelegate>
@property (readwrite) NSPoint location;
@end


@implementation DragTextField
@synthesize location;

- (id)initWithFrame:(NSRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
    }

    return self;
}

- (void)drawRect:(NSRect)dirtyRect
{
    [super drawRect:dirtyRect];

}

- (BOOL) acceptsFirstMouse:(NSEvent *)theEvent
{
    return YES;
}

- (void)mouseDown:(NSEvent *)theEvent
{
    location = [theEvent locationInWindow];
    self.location = [[self superview] convertPoint:[theEvent locationInWindow] fromView:nil];
}

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

    NSPoint newDragLocation = [[self superview] convertPoint:[theEvent locationInWindow] fromView:nil];
    NSPoint thisOrigin = [self frame].origin;
    thisOrigin.x += (-self.location.x + newDragLocation.x);
    thisOrigin.y += (-self.location.y + newDragLocation.y);
    [self setFrameOrigin:thisOrigin];
    self.location = newDragLocation;
}

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

    [self setNeedsDisplay:YES];
}
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1 に答える 1

-1

You have to re-position your textfield whenever the window resizes by using delegate functions.

- (void)windowDidResize:(NSNotification *)notification{ 
//Change the position of your textfield depending on the window size
}
于 2012-11-02T13:53:00.703 に答える