transmission/macosx/DragOverlayView.mm

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// This file Copyright © 2007-2022 Transmission authors and contributors.
// It may be used under the MIT (SPDX: MIT) license.
// License text can be found in the licenses/ folder.
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#import "DragOverlayView.h"
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#define PADDING 10.0
#define ICON_WIDTH 64.0
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@implementation DragOverlayView
- (instancetype)initWithFrame:(NSRect)frame
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{
if ((self = [super initWithFrame:frame]))
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{
//create attributes
NSShadow* stringShadow = [[NSShadow alloc] init];
stringShadow.shadowOffset = NSMakeSize(2.0, -2.0);
stringShadow.shadowBlurRadius = 4.0;
NSFont *bigFont = [NSFont boldSystemFontOfSize:18.0], *smallFont = [NSFont systemFontOfSize:14.0];
NSMutableParagraphStyle* paragraphStyle = [NSParagraphStyle.defaultParagraphStyle mutableCopy];
paragraphStyle.lineBreakMode = NSLineBreakByTruncatingMiddle;
fMainLineAttributes = @{
NSForegroundColorAttributeName : NSColor.whiteColor,
NSFontAttributeName : bigFont,
NSShadowAttributeName : stringShadow,
NSParagraphStyleAttributeName : paragraphStyle
};
fSubLineAttributes = @{
NSForegroundColorAttributeName : NSColor.whiteColor,
NSFontAttributeName : smallFont,
NSShadowAttributeName : stringShadow,
NSParagraphStyleAttributeName : paragraphStyle
};
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}
return self;
}
- (void)setOverlay:(NSImage*)icon mainLine:(NSString*)mainLine subLine:(NSString*)subLine
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{
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//create badge
NSRect const badgeRect = NSMakeRect(0.0, 0.0, 325.0, 84.0);
fBadge = [[NSImage alloc] initWithSize:badgeRect.size];
[fBadge lockFocus];
NSBezierPath* bp = [NSBezierPath bezierPathWithRoundedRect:badgeRect xRadius:15.0 yRadius:15.0];
[[NSColor colorWithCalibratedWhite:0.0 alpha:0.75] set];
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[bp fill];
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//place icon
[icon drawInRect:NSMakeRect(PADDING, (NSHeight(badgeRect) - ICON_WIDTH) * 0.5, ICON_WIDTH, ICON_WIDTH) fromRect:NSZeroRect
operation:NSCompositingOperationSourceOver
fraction:1.0];
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//place main text
NSSize const mainLineSize = [mainLine sizeWithAttributes:fMainLineAttributes];
NSSize const subLineSize = [subLine sizeWithAttributes:fSubLineAttributes];
NSRect lineRect = NSMakeRect(
PADDING + ICON_WIDTH + 5.0,
(NSHeight(badgeRect) + (subLineSize.height + 2.0 - mainLineSize.height)) * 0.5,
NSWidth(badgeRect) - (PADDING + ICON_WIDTH + 2.0) - PADDING,
mainLineSize.height);
[mainLine drawInRect:lineRect withAttributes:fMainLineAttributes];
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//place sub text
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lineRect.origin.y -= subLineSize.height + 2.0;
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lineRect.size.height = subLineSize.height;
[subLine drawInRect:lineRect withAttributes:fSubLineAttributes];
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[fBadge unlockFocus];
self.needsDisplay = YES;
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}
- (void)drawRect:(NSRect)rect
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{
if (fBadge)
{
NSRect const frame = self.frame;
NSSize const imageSize = fBadge.size;
[fBadge drawAtPoint:NSMakePoint((NSWidth(frame) - imageSize.width) * 0.5, (NSHeight(frame) - imageSize.height) * 0.5)
fromRect:NSZeroRect
operation:NSCompositingOperationSourceOver
fraction:1.0];
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}
}
@end