好的，这是我的情况：
- 我正在尝试类似 HUD 的自定义控件集合SNRHUDKit。
- 我专门
SNRHUDWindow用作我的主窗口类 - 无论如何，尽管它确实有效，但当用户拖动其右下角时，我无法调整大小
NSWindow（或- 没有太大区别）。NSPanel
的代码SNRHUDWindow是：
//
// SNRHUDWindow.m
// SNRHUDKit
//
// Created by Indragie Karunaratne on 12-01-22.
// Copyright (c) 2012 indragie.com. All rights reserved.
//
#import "SNRHUDWindow.h"
#import "NSBezierPath+MCAdditions.h"
#define SNRWindowTitlebarHeight 22.f
#define SNRWindowBorderColor [NSColor blackColor]
#define SNRWindowTopColor [NSColor colorWithDeviceWhite:0.240 alpha:0.960]
#define SNRWindowBottomColor [NSColor colorWithDeviceWhite:0.150 alpha:0.960]
#define SNRWindowHighlightColor [NSColor colorWithDeviceWhite:1.000 alpha:0.200]
#define SNRWindowCornerRadius 5.f
#define SNRWindowTitleFont [NSFont systemFontOfSize:11.f]
#define SNRWindowTitleColor [NSColor colorWithDeviceWhite:0.700 alpha:1.000]
#define SNRWindowTitleShadowOffset NSMakeSize(0.f, 1.f)
#define SNRWindowTitleShadowBlurRadius 1.f
#define SNRWindowTitleShadowColor [NSColor blackColor]
#define SNRWindowButtonSize NSMakeSize(18.f, 18.f)
#define SNRWindowButtonEdgeMargin 5.f
#define SNRWindowButtonBorderColor [NSColor colorWithDeviceWhite:0.040 alpha:1.000]
#define SNRWindowButtonGradientBottomColor [NSColor colorWithDeviceWhite:0.070 alpha:1.000]
#define SNRWindowButtonGradientTopColor [NSColor colorWithDeviceWhite:0.220 alpha:1.000]
#define SNRWindowButtonDropShadowColor [NSColor colorWithDeviceWhite:1.000 alpha:0.100]
#define SNRWindowButtonCrossColor [NSColor colorWithDeviceWhite:0.450 alpha:1.000]
#define SNRWindowButtonCrossInset 1.f
#define SNRWindowButtonHighlightOverlayColor [NSColor colorWithDeviceWhite:0.000 alpha:0.300]
#define SNRWindowButtonInnerShadowColor [NSColor colorWithDeviceWhite:1.000 alpha:0.100]
#define SNRWindowButtonInnerShadowOffset NSMakeSize(0.f, 0.f)
#define SNRWindowButtonInnerShadowBlurRadius 1.f
@interface SNRHUDWindowButtonCell : NSButtonCell
@end
@interface SNRHUDWindowFrameView : NSView
- (void)snr_drawTitleInRect:(NSRect)rect;
@end
@implementation SNRHUDWindow {
NSView *__customContentView;
}
- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)windowStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL)deferCreation
{
if ((self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask backing:bufferingType defer:deferCreation])) {
[self setOpaque:NO];
[self setBackgroundColor:[NSColor clearColor]];
[self setMovableByWindowBackground:YES];
[self setLevel:NSFloatingWindowLevel];
}
return self;
}
- (NSRect)contentRectForFrameRect:(NSRect)windowFrame
{
windowFrame.origin = NSZeroPoint;
windowFrame.size.height -= SNRWindowTitlebarHeight;
return windowFrame;
}
+ (NSRect)frameRectForContentRect:(NSRect)windowContentRect
styleMask:(NSUInteger)windowStyle
{
windowContentRect.size.height += SNRWindowTitlebarHeight;
return windowContentRect;
}
- (NSRect)frameRectForContentRect:(NSRect)windowContent
{
windowContent.size.height += SNRWindowTitlebarHeight;
return windowContent;
}
- (void)setContentView:(NSView *)aView
{
if ([__customContentView isEqualTo:aView]) {
return;
}
NSRect bounds = [self frame];
bounds.origin = NSZeroPoint;
SNRHUDWindowFrameView *frameView = [super contentView];
if (!frameView) {
frameView = [[SNRHUDWindowFrameView alloc] initWithFrame:bounds];
NSSize buttonSize = SNRWindowButtonSize;
NSRect buttonRect = NSMakeRect(SNRWindowButtonEdgeMargin, NSMaxY(frameView.bounds) -(SNRWindowButtonEdgeMargin + buttonSize.height), buttonSize.width, buttonSize.height);
NSButton *closeButton = [[NSButton alloc] initWithFrame:buttonRect];
[closeButton setCell:[[SNRHUDWindowButtonCell alloc] init]];
[closeButton setButtonType:NSMomentaryChangeButton];
[closeButton setTarget:self];
[closeButton setAction:@selector(close)];
[closeButton setAutoresizingMask:NSViewMaxXMargin | NSViewMinYMargin];
[frameView addSubview:closeButton];
[super setContentView:frameView];
}
if (__customContentView) {
[__customContentView removeFromSuperview];
}
__customContentView = aView;
[__customContentView setFrame:[self contentRectForFrameRect:bounds]];
[__customContentView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
[frameView addSubview:__customContentView];
}
- (NSView *)contentView
{
return __customContentView;
}
- (void)setTitle:(NSString *)aString
{
[super setTitle:aString];
[[super contentView] setNeedsDisplay:YES];
}
- (BOOL)canBecomeKeyWindow
{
return YES;
}
@end
@implementation SNRHUDWindowFrameView
- (void)drawRect:(NSRect)dirtyRect
{
NSRect drawingRect = NSInsetRect(self.bounds, 0.5f, 0.5f);
NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:drawingRect xRadius:SNRWindowCornerRadius yRadius:SNRWindowCornerRadius];
[NSGraphicsContext saveGraphicsState];
[path addClip];
// Fill in the title bar with a gradient background
NSRect titleBarRect = NSMakeRect(0.f, NSMaxY(self.bounds) - SNRWindowTitlebarHeight, self.bounds.size.width, SNRWindowTitlebarHeight);
NSGradient *titlebarGradient = [[NSGradient alloc] initWithStartingColor:SNRWindowBottomColor endingColor:SNRWindowTopColor];
[titlebarGradient drawInRect:titleBarRect angle:90.f];
// Draw the window title
[self snr_drawTitleInRect:titleBarRect];
// Rest of the window has a solid fill
NSRect bottomRect = NSMakeRect(0.f, 0.f, self.bounds.size.width, self.bounds.size.height - SNRWindowTitlebarHeight);
[SNRWindowBottomColor set];
[NSBezierPath fillRect:bottomRect];
// Draw the highlight line around the top edge of the window
// Outset the width of the rectangle by 0.5px so that the highlight "bleeds" around the rounded corners
// Outset the height by 1px so that the line is drawn right below the border
NSRect highlightRect = NSInsetRect(drawingRect, 0.f, 0.5f);
// Make the height of the highlight rect something bigger than the bounds so that it won't show up on the bottom
highlightRect.size.height += 50.f;
highlightRect.origin.y -= 50.f;
NSBezierPath *highlightPath = [NSBezierPath bezierPathWithRoundedRect:highlightRect xRadius:SNRWindowCornerRadius yRadius:SNRWindowCornerRadius];
[SNRWindowHighlightColor set];
[highlightPath stroke];
[NSGraphicsContext restoreGraphicsState];
[SNRWindowBorderColor set];
[path stroke];
}
- (void)snr_drawTitleInRect:(NSRect)titleBarRect
{
NSString *title = [[self window] title];
if (!title) { return; }
NSShadow *shadow = [NSShadow new];
[shadow setShadowColor:SNRWindowTitleShadowColor];
[shadow setShadowOffset:SNRWindowTitleShadowOffset];
[shadow setShadowBlurRadius:SNRWindowTitleShadowBlurRadius];
NSMutableParagraphStyle *style = [NSMutableParagraphStyle new];
[style setAlignment:NSCenterTextAlignment];
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:SNRWindowTitleColor, NSForegroundColorAttributeName, SNRWindowTitleFont, NSFontAttributeName, shadow, NSShadowAttributeName, style, NSParagraphStyleAttributeName, nil];
NSAttributedString *attrTitle = [[NSAttributedString alloc] initWithString:title attributes:attributes];
NSSize titleSize = attrTitle.size;
NSRect titleRect = NSMakeRect(0.f, NSMidY(titleBarRect) - (titleSize.height / 2.f), titleBarRect.size.width, titleSize.height);
[attrTitle drawInRect:NSIntegralRect(titleRect)];
}
@end
@implementation SNRHUDWindowButtonCell
- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
NSRect drawingRect = NSInsetRect(cellFrame, 1.5f, 1.5f);
drawingRect.origin.y = 0.5f;
NSRect dropShadowRect = drawingRect;
dropShadowRect.origin.y += 1.f;
// Draw the drop shadow so that the bottom edge peeks through
NSBezierPath *dropShadow = [NSBezierPath bezierPathWithOvalInRect:dropShadowRect];
[SNRWindowButtonDropShadowColor set];
[dropShadow stroke];
// Draw the main circle w/ gradient & border on top of it
NSBezierPath *circle = [NSBezierPath bezierPathWithOvalInRect:drawingRect];
NSGradient *gradient = [[NSGradient alloc] initWithStartingColor:SNRWindowButtonGradientBottomColor endingColor:SNRWindowButtonGradientTopColor];
[gradient drawInBezierPath:circle angle:270.f];
[SNRWindowButtonBorderColor set];
[circle stroke];
// Draw the cross
NSBezierPath *cross = [NSBezierPath bezierPath];
CGFloat boxDimension = floor(drawingRect.size.width * cos(45.f)) - SNRWindowButtonCrossInset;
CGFloat origin = round((drawingRect.size.width - boxDimension) / 2.f);
NSRect boxRect = NSMakeRect(1.f + origin, origin, boxDimension, boxDimension);
NSPoint bottomLeft = NSMakePoint(boxRect.origin.x, NSMaxY(boxRect));
NSPoint topRight = NSMakePoint(NSMaxX(boxRect), boxRect.origin.y);
NSPoint bottomRight = NSMakePoint(topRight.x, bottomLeft.y);
NSPoint topLeft = NSMakePoint(bottomLeft.x, topRight.y);
[cross moveToPoint:bottomLeft];
[cross lineToPoint:topRight];
[cross moveToPoint:bottomRight];
[cross lineToPoint:topLeft];
[SNRWindowButtonCrossColor set];
[cross setLineWidth:2.f];
[cross stroke];
// Draw the inner shadow
NSShadow *shadow = [[NSShadow alloc] init];
[shadow setShadowColor:SNRWindowButtonInnerShadowColor];
[shadow setShadowBlurRadius:SNRWindowButtonInnerShadowBlurRadius];
[shadow setShadowOffset:SNRWindowButtonInnerShadowOffset];
NSRect shadowRect = drawingRect;
shadowRect.size.height = origin;
[NSGraphicsContext saveGraphicsState];
[NSBezierPath clipRect:shadowRect];
[circle fillWithInnerShadow:shadow];
[NSGraphicsContext restoreGraphicsState];
if ([self isHighlighted]) {
[SNRWindowButtonHighlightOverlayColor set];
[circle fill];
}
}
@end
任何想法可能导致NSPanel失去调整大小的能力？