151 lines
3.8 KiB
Objective-C
151 lines
3.8 KiB
Objective-C
// 15 may 2016
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#import "uipriv_darwin.h"
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// TODO no intrinsic height?
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@interface colorButton : NSColorWell {
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uiColorButton *libui_b;
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BOOL libui_changing;
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}
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- (id)initWithFrame:(NSRect)frame libuiColorButton:(uiColorButton *)b;
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- (void)deactivateOnClose:(NSNotification *)note;
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- (void)libuiColor:(double *)r g:(double *)g b:(double *)b a:(double *)a;
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- (void)libuiSetColor:(double)r g:(double)g b:(double)b a:(double)a;
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@end
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// only one may be active at one time
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static colorButton *activeColorButton = nil;
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struct uiColorButton {
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uiDarwinControl c;
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colorButton *button;
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void (*onChanged)(uiColorButton *, void *);
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void *onChangedData;
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};
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@implementation colorButton
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- (id)initWithFrame:(NSRect)frame libuiColorButton:(uiColorButton *)b
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{
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self = [super initWithFrame:frame];
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if (self) {
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// the default color is white; set it to black first (see -setColor: below for why we do it first)
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[self libuiSetColor:0.0 g:0.0 b:0.0 a:1.0];
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self->libui_b = b;
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self->libui_changing = NO;
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}
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return self;
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}
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- (void)activate:(BOOL)exclusive
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{
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if (activeColorButton != nil)
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activeColorButton->libui_changing = YES;
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[NSColorPanel setPickerMask:NSColorPanelAllModesMask];
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[[NSColorPanel sharedColorPanel] setShowsAlpha:YES];
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[super activate:YES];
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activeColorButton = self;
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// TODO try setWorksWhenModal (I'd need a color well there)
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(deactivateOnClose:)
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name:NSWindowWillCloseNotification
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object:[NSColorPanel sharedColorPanel]];
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}
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- (void)deactivate
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{
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[super deactivate];
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activeColorButton = nil;
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if (!self->libui_changing)
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[[NSColorPanel sharedColorPanel] orderOut:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self
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name:NSWindowWillCloseNotification
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object:[NSColorPanel sharedColorPanel]];
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self->libui_changing = NO;
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}
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- (void)deactivateOnClose:(NSNotification *)note
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{
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[self deactivate];
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}
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- (void)setColor:(NSColor *)color
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{
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uiColorButton *b = self->libui_b;
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[super setColor:color];
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// this is called by NSColorWell's init, so we have to guard
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if (b != nil)
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(*(b->onChanged))(b, b->onChangedData);
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}
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- (void)libuiColor:(double *)r g:(double *)g b:(double *)b a:(double *)a
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{
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NSColor *rgba;
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CGFloat cr, cg, cb, ca;
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// the given color may not be an RGBA color, which will cause the -getRed:green:blue:alpha: call to throw an exception
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// TODO device RGB space?
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rgba = [[self color] colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
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[rgba getRed:&cr green:&cg blue:&cb alpha:&ca];
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*r = cr;
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*g = cg;
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*b = cb;
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*a = ca;
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// rgba will be autoreleased since it isn't a new or init call
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}
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- (void)libuiSetColor:(double)r g:(double)g b:(double)b a:(double)a
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{
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// TODO does this set the panel color? does it send a signal?
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[self setColor:[NSColor colorWithRed:r green:g blue:b alpha:a]];
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}
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@end
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uiDarwinControlAllDefaults(uiColorButton, button)
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// we do not want color change events to be sent to any controls other than the color buttons
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// see main.m for more details
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BOOL colorButtonInhibitSendAction(SEL sel, id from, id to)
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{
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if (sel != @selector(changeColor:))
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return NO;
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return ![to isKindOfClass:[colorButton class]];
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}
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static void defaultOnChanged(uiColorButton *b, void *data)
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{
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// do nothing
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}
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void uiColorButtonColor(uiColorButton *b, double *r, double *g, double *bl, double *a)
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{
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[b->button libuiColor:r g:g b:bl a:a];
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}
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void uiColorButtonSetColor(uiColorButton *b, double r, double g, double bl, double a)
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{
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[b->button libuiSetColor:r g:g b:bl a:a];
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}
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void uiColorButtonOnChanged(uiColorButton *b, void (*f)(uiColorButton *, void *), void *data)
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{
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b->onChanged = f;
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b->onChangedData = data;
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}
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uiColorButton *uiNewColorButton(void)
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{
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uiColorButton *b;
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uiDarwinNewControl(uiColorButton, b);
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b->button = [[colorButton alloc] initWithFrame:NSZeroRect libuiColorButton:b];
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uiColorButtonOnChanged(b, defaultOnChanged, NULL);
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return b;
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}
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