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add explicit onChange callback in cocoa cvSetTrackbarPos

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This commit is contained in:
Christine Poerschke 2022-09-11 16:40:27 +01:00
parent 4154bd0667
commit cb1a1e9a51
1 changed files with 9 additions and 2 deletions
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11
modules/highgui/src/window_cocoa.mm
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@ -451,6 +451,9 @@ CV_IMPL void cvSetTrackbarPos(const char* trackbar_name, const char* window_name
slider = [[window sliders] valueForKey:[NSString stringWithFormat:@"%s", trackbar_name]]; slider = [[window sliders] valueForKey:[NSString stringWithFormat:@"%s", trackbar_name]];
if(slider) { if(slider) {
[[slider slider] setIntValue:pos]; [[slider slider] setIntValue:pos];
if([slider respondsToSelector:@selector(handleSlider)]) {
[slider performSelector:@selector(handleSlider)];
}
} }
} }
[localpool5 drain]; [localpool5 drain];
@ -1187,7 +1190,7 @@ static NSSize constrainAspectRatio(NSSize base, NSSize constraint) {
[slider setMaxValue:100]; [slider setMaxValue:100];
[slider setContinuous:YES]; [slider setContinuous:YES];
[slider setTarget:self]; [slider setTarget:self];
[slider setAction:@selector(sliderChanged:)]; [slider setAction:@selector(handleSliderNotification:)];
[self addSubview:slider]; [self addSubview:slider];
[self setAutoresizingMask:NSViewWidthSizable]; [self setAutoresizingMask:NSViewWidthSizable];
@ -1197,8 +1200,12 @@ static NSSize constrainAspectRatio(NSSize base, NSSize constraint) {
return self; return self;
} }
- (void)sliderChanged:(NSNotification *)notification { - (void)handleSliderNotification:(NSNotification *)notification {
(void)notification; (void)notification;
[self handleSlider];
}
- (void)handleSlider {
int pos = [slider intValue]; int pos = [slider intValue];
NSString *temp = [self initialName]; NSString *temp = [self initialName];
NSString *text = [NSString stringWithFormat:@"%@ %d", temp, pos]; NSString *text = [NSString stringWithFormat:@"%@ %d", temp, pos];