Изменение размера Custom NSPanel

Question

Хорошо, вот моя ситуация:

• Я пробую HUD-подобную коллекцию пользовательских элементов управления, SNRHUDKit.
• Я специально использую SNRHUDWindow как мой основной класс окна
• Неважно, что, хотя это на самом деле работает, я не могу получить NSWindow (или же NSPanel - не имеет большого значения) изменить размер, когда пользователь перетаскивает свой правый нижний угол.

Код для SNRHUDWindow является:

//
//  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

Любые идеи, которые могут быть ответственны за NSPanel теряет способность к изменению размеров?

Answer 1

Я также использую эту платформу, и причина, по которой изменение размера не работает по умолчанию, заключается в следующей строке в методе initWithContentRect:

if ((self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask backing:bufferingType defer:deferCreation])) {

Как вы можете видеть, вместо передачи битовой маски windowStyle, предоставленной методу init супер, она проходит только через NSBorderlessWindowMask. Немного понюхания показывает, что для изменения размера возможно вообще, styleMask должен включать NSResizableWindowMask, включенный в битовую маску.

Итак, изменив строку на

if ((self = [super initWithContentRect:contentRect styleMask:NSBorderlessWindowMask|NSResizableWindowMask backing:bufferingType defer:deferCreation])) {

должен решить вашу проблему.