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// 14 august 2015
#import "uipriv_darwin.h"
// Horizontal sliders have no intrinsic width; we'll use the default Interface Builder width for them.
// This will also be used for the initial frame size, to ensure the slider is always horizontal (see below).
#define sliderWidth 92
@interface libui_intrinsicWidthNSSlider : NSSlider
@end
@implementation libui_intrinsicWidthNSSlider
- (NSSize)intrinsicContentSize
{
NSSize s;
s = [super intrinsicContentSize];
s.width = sliderWidth;
return s;
}
@end
struct uiSlider {
uiDarwinControl c;
NSSlider *slider;
void (*onChanged)(uiSlider *, void *);
void *onChangedData;
};
@interface sliderDelegateClass : NSObject {
struct mapTable *sliders;
}
- (IBAction)onChanged:(id)sender;
- (void)registerSlider:(uiSlider *)b;
- (void)unregisterSlider:(uiSlider *)b;
@end
@implementation sliderDelegateClass
- (id)init
{
self = [super init];
if (self)
self->sliders = newMap();
return self;
}
- (void)dealloc
{
mapDestroy(self->sliders);
[super dealloc];
}
- (IBAction)onChanged:(id)sender
{
uiSlider *s;
s = (uiSlider *) mapGet(self->sliders, sender);
(*(s->onChanged))(s, s->onChangedData);
}
- (void)registerSlider:(uiSlider *)s
{
mapSet(self->sliders, s->slider, s);
[s->slider setTarget:self];
[s->slider setAction:@selector(onChanged:)];
}
- (void)unregisterSlider:(uiSlider *)s
{
[s->slider setTarget:nil];
mapDelete(self->sliders, s->slider);
}
@end
static sliderDelegateClass *sliderDelegate = nil;
uiDarwinControlAllDefaultsExceptDestroy(uiSlider, slider)
static void uiSliderDestroy(uiControl *c)
{
uiSlider *s = uiSlider(c);
[sliderDelegate unregisterSlider:s];
[s->slider release];
uiFreeControl(uiControl(s));
}
int uiSliderValue(uiSlider *s)
{
return [s->slider integerValue];
}
void uiSliderSetValue(uiSlider *s, int value)
{
[s->slider setIntegerValue:value];
}
void uiSliderOnChanged(uiSlider *s, void (*f)(uiSlider *, void *), void *data)
{
s->onChanged = f;
s->onChangedData = data;
}
static void defaultOnChanged(uiSlider *s, void *data)
{
// do nothing
}
uiSlider *uiNewSlider(int min, int max)
{
uiSlider *s;
NSSliderCell *cell;
int temp;
if (min >= max) {
temp = min;
min = max;
max = temp;
}
uiDarwinNewControl(uiSlider, s);
// a horizontal slider is defined as one where the width > height, not by a flag
// to be safe, don't use NSZeroRect, but make it horizontal from the get-go
s->slider = [[libui_intrinsicWidthNSSlider alloc]
initWithFrame:NSMakeRect(0, 0, sliderWidth, 2)];
[s->slider setMinValue:min];
[s->slider setMaxValue:max];
[s->slider setAllowsTickMarkValuesOnly:NO];
[s->slider setNumberOfTickMarks:0];
[s->slider setTickMarkPosition:NSTickMarkAbove];
cell = (NSSliderCell *) [s->slider cell];
[cell setSliderType:NSLinearSlider];
if (sliderDelegate == nil) {
sliderDelegate = [[sliderDelegateClass new] autorelease];
[delegates addObject:sliderDelegate];
}
[sliderDelegate registerSlider:s];
uiSliderOnChanged(s, defaultOnChanged, NULL);
return s;
}
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