1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
#import "GBOSDView.h"
@implementation GBOSDView
{
bool _usesSGBScale;
NSString *_text;
double _animation;
NSTimer *_timer;
}
- (void)setUsesSGBScale:(bool)usesSGBScale
{
_usesSGBScale = usesSGBScale;
[self setNeedsDisplay:true];
}
- (bool)usesSGBScale
{
return _usesSGBScale;
}
- (void)displayText:(NSString *)text
{
if (![[NSUserDefaults standardUserDefaults] boolForKey:@"GBOSDEnabled"]) return;
dispatch_async(dispatch_get_main_queue(), ^{
if (![_text isEqualToString:text]) {
[self setNeedsDisplay:true];
}
_text = text;
self.alphaValue = 1.0;
_animation = 2.5;
// Longer strings should appear longer
if ([_text rangeOfString:@"\n"].location != NSNotFound) {
_animation += 4;
}
[_timer invalidate];
self.hidden = false;
_timer = [NSTimer scheduledTimerWithTimeInterval:0.025 target:self selector:@selector(animate) userInfo:nil repeats:true];
});
}
- (void)animate
{
_animation -= 0.1;
if (_animation < 1.0) {
self.alphaValue = _animation;
};
if (_animation == 0) {
self.hidden = true;
[_timer invalidate];
_text = nil;
}
}
- (void)drawRect:(NSRect)dirtyRect
{
[super drawRect:dirtyRect];
if (!_text.length) return;
double fontSize = 8;
NSSize size = self.frame.size;
if (_usesSGBScale) {
fontSize *= MIN(size.width / 256, size.height / 224);
}
else {
fontSize *= MIN(size.width / 160, size.height / 144);
}
NSFont *font = [NSFont boldSystemFontOfSize:fontSize];
/* The built in stroke attribute uses an inside stroke, which is typographically terrible.
We'll use a naïve manual stroke instead which looks better. */
NSDictionary *attributes = @{
NSFontAttributeName: font,
NSForegroundColorAttributeName: [NSColor blackColor],
};
NSAttributedString *text = [[NSAttributedString alloc] initWithString:_text attributes:attributes];
[text drawAtPoint:NSMakePoint(fontSize + 1, fontSize + 0)];
[text drawAtPoint:NSMakePoint(fontSize - 1, fontSize + 0)];
[text drawAtPoint:NSMakePoint(fontSize + 0, fontSize + 1)];
[text drawAtPoint:NSMakePoint(fontSize + 0, fontSize - 1)];
// The uses of sqrt(2)/2, which is more correct, results in severe ugly-looking rounding errors
if (self.window.screen.backingScaleFactor > 1) {
[text drawAtPoint:NSMakePoint(fontSize + 0.5, fontSize + 0.5)];
[text drawAtPoint:NSMakePoint(fontSize - 0.5, fontSize + 0.5)];
[text drawAtPoint:NSMakePoint(fontSize - 0.5, fontSize - 0.5)];
[text drawAtPoint:NSMakePoint(fontSize + 0.5, fontSize - 0.5)];
}
attributes = @{
NSFontAttributeName: font,
NSForegroundColorAttributeName: [NSColor whiteColor],
};
text = [[NSAttributedString alloc] initWithString:_text attributes:attributes];
[text drawAtPoint:NSMakePoint(fontSize, fontSize)];
}
@end
|
