static void
UpdateSV(AG_HSVPal *pal, int ax, int ay)
{
float s, v;
int x = ax - pal->triangle.x;
int y = ay - pal->triangle.y;
if (x < -y/2) { x = -y/2; }
if (x > y/2) { x = y/2; }
if (y > pal->triangle.h-1) { y = pal->triangle.h-1; }
s = 1.0 - (float)y/(float)pal->triangle.h;
v = 1.0 - (float)(x + y/2)/(float)pal->triangle.h;
if (s < 0.0F) { s = 0.00001F; }
else if (s > 1.0F) { s = 1.0F; }
if (v < 0.0F) { v = 0.0001F; }
else if (v > 1.0F) { v = 1.0F; }
AG_SetFloat(pal, "saturation", s);
AG_SetFloat(pal, "value", v);
UpdatePixelFromHSVA(pal);
AG_PostEvent(NULL, pal, "sv-changed", NULL);
pal->flags |= AG_HSVPAL_DIRTY;
AG_Redraw(pal);
}
AG_Slider *
AG_SliderNewFltR(void *parent, enum ag_slider_type type, Uint flags,
float *val, float min, float max)
{
AG_Slider *sl = AG_SliderNew(parent, type, flags);
if (val != NULL) { AG_BindFloat(sl, "value", val); }
AG_SetFloat(sl, "min", min);
AG_SetFloat(sl, "max", max);
return (sl);
}
static void
UpdateHSVFromRGBAv(AG_HSVPal *hsv)
{
AG_Variable *bRGBAv;
void *RGBAv;
Uint8 r, g, b, a;
float h, s, v;
if ((bRGBAv = AG_GetVariable(hsv, "RGBAv", &RGBAv)) == NULL) {
return;
}
switch (AG_VARIABLE_TYPE(bRGBAv)) {
case AG_VARIABLE_FLOAT:
r = (Uint8)(((float *)RGBAv)[0] * 255.0);
g = (Uint8)(((float *)RGBAv)[1] * 255.0);
b = (Uint8)(((float *)RGBAv)[2] * 255.0);
a = (Uint8)(((float *)RGBAv)[3] * 255.0);
break;
case AG_VARIABLE_DOUBLE:
r = (Uint8)(((double *)RGBAv)[0] * 255.0);
g = (Uint8)(((double *)RGBAv)[1] * 255.0);
b = (Uint8)(((double *)RGBAv)[2] * 255.0);
a = (Uint8)(((double *)RGBAv)[3] * 255.0);
break;
case AG_VARIABLE_INT:
r = (Uint8)(((int *)RGBAv)[0]);
g = (Uint8)(((int *)RGBAv)[1]);
b = (Uint8)(((int *)RGBAv)[2]);
a = (Uint8)(((int *)RGBAv)[3]);
break;
case AG_VARIABLE_UINT8:
r = ((Uint8 *)RGBAv)[0];
g = ((Uint8 *)RGBAv)[1];
b = ((Uint8 *)RGBAv)[2];
a = ((Uint8 *)RGBAv)[3];
break;
default:
r = 0;
g = 0;
b = 0;
a = 0;
break;
}
AG_RGB2HSV(r, g, b, &h, &s, &v);
AG_SetFloat(hsv, "hue", h);
AG_SetFloat(hsv, "saturation", s);
AG_SetFloat(hsv, "value", v);
SetAlpha8(hsv, a);
AG_UnlockVariable(bRGBAv);
hsv->flags |= AG_HSVPAL_DIRTY;
AG_Redraw(hsv);
}
static void
UpdateHSVFromPixel(AG_HSVPal *hsv, Uint32 pixel)
{
Uint8 r, g, b, a;
float h, s, v;
AG_Variable *bFormat;
AG_PixelFormat **pFormat;
bFormat = AG_GetVariable(hsv, "pixel-format", &pFormat);
AG_GetPixelRGBA(pixel, *pFormat, &r,&g,&b,&a);
AG_RGB2HSV(r, g, b, &h,&s,&v);
AG_SetFloat(hsv, "hue", h);
AG_SetFloat(hsv, "saturation", s);
AG_SetFloat(hsv, "value", v);
SetAlpha8(hsv, a);
AG_UnlockVariable(bFormat);
AG_Redraw(hsv);
}
bool GuiConfig::Write(const string &option, const float &value)
{
if(!option.size())
return true;
if(AG_SetFloat(agConfig, option.c_str(), value) == NULL)
return true;
return false;
}
static void
PasteColor(AG_Event *event)
{
AG_HSVPal *pal = AG_PTR(1);
AG_ObjectLock(pal);
AG_MutexLock(&CopyLock);
AG_SetFloat(pal, "hue", cH);
AG_SetFloat(pal, "saturation", cS);
AG_SetFloat(pal, "value", cV);
AG_SetFloat(pal, "alpha", cA);
AG_MutexUnlock(&CopyLock);
UpdatePixelFromHSVA(pal);
pal->flags |= AG_HSVPAL_DIRTY;
AG_PostEvent(NULL, pal, "h-changed", NULL);
AG_PostEvent(NULL, pal, "sv-changed", NULL);
AG_ObjectUnlock(pal);
AG_Redraw(pal);
}
static void
SetComplementaryColor(AG_Event *event)
{
AG_HSVPal *pal = AG_PTR(1);
float hue;
AG_ObjectLock(pal);
hue = AG_GetFloat(pal, "hue");
AG_SetFloat(pal, "hue", ((int)hue+180) % 359);
UpdatePixelFromHSVA(pal);
pal->flags |= AG_HSVPAL_DIRTY;
AG_PostEvent(NULL, pal, "h-changed", NULL);
AG_PostEvent(NULL, pal, "sv-changed", NULL);
AG_ObjectUnlock(pal);
AG_Redraw(pal);
}
static void
UpdateHue(AG_HSVPal *pal, int x, int y)
{
float h;
h = Atan2((float)y, (float)x);
if (h < 0) {
h += (float)(2*AG_PI);
}
AG_SetFloat(pal, "hue", h/(2*AG_PI)*360.0);
UpdatePixelFromHSVA(pal);
AG_PostEvent(NULL, pal, "h-changed", NULL);
pal->flags |= AG_HSVPAL_DIRTY;
AG_Redraw(pal);
}
void
agar_gui_widget_set_float (AG_Widget *w, const char *binding, float val)
{
AG_SetFloat (w, binding, val);
}
