void
AG_ButtonSurface(AG_Button *bu, AG_Surface *su)
{
AG_Surface *suDup = (su != NULL) ? AG_SurfaceDup(su) : NULL;
AG_ObjectLock(bu);
if (bu->lbl != NULL) {
AG_ObjectDetach(bu->lbl);
AG_ObjectDestroy(bu->lbl);
bu->lbl = NULL;
}
if (bu->surface != -1) {
AG_WidgetReplaceSurface(bu, bu->surface, suDup);
} else {
bu->surface = AG_WidgetMapSurface(bu, suDup);
}
AG_ObjectUnlock(bu);
AG_Redraw(bu);
}
/*
* Draw function. Invoked from GUI rendering context to draw the widget
* at its current location. All primitive and surface operations operate
* on widget coordinates.
*/
static void
Draw(void *p)
{
formaText *my = (formaText*)p;
/*
* Render some text into a new surface. In OpenGL mode, the
* AG_WidgetMapSurface() call involves a texture upload.
*/
if (my->mySurface == -1) {
my->mySurface = AG_WidgetMapSurface(my,
surf1);
};
//AG_WidgetUpdateSurface(my,my->mySurface);
/* Blit the mapped surface at [0,0]. */
AG_WidgetBlitSurface(my, my->mySurface, 0, 0);
}
static void
Draw(void *obj)
{
AG_HSVPal *pal = obj;
float cur_h, cur_s, cur_v;
Uint8 r, g, b, a;
int x, y;
if (pal->surface == NULL) {
if ((pal->surface = AG_SurfaceStdGL(WIDTH(pal), HEIGHT(pal)))
== NULL) {
return;
}
pal->surfaceId = AG_WidgetMapSurface(pal, pal->surface);
}
if (pal->flags & AG_HSVPAL_DIRTY) {
pal->flags &= ~(AG_HSVPAL_DIRTY);
RenderPalette(pal);
AG_WidgetUpdateSurface(pal, pal->surfaceId);
}
cur_h = (AG_GetFloat(pal, "hue") / 360.0) * 2*AG_PI;
cur_s = AG_GetFloat(pal, "saturation");
cur_v = AG_GetFloat(pal, "value");
a = (Uint8)(AG_GetFloat(pal, "alpha")*255);
AG_WidgetBlitFrom(pal, pal, pal->surfaceId, NULL, 0, 0);
/* Indicate the current selection. */
AG_DrawCircle(pal,
pal->circle.x + (pal->circle.rin + pal->circle.width/2)*Cos(cur_h),
pal->circle.y + (pal->circle.rin + pal->circle.width/2)*Sin(cur_h),
pal->selcircle_r,
AG_ColorRGB(0,0,0));
/* The rendering routine uses (v = 1 - x/h), so (x = -v*h + h). */
y = (int)((1.0 - cur_s) * (float)pal->triangle.h);
x = (int)(-(cur_v*(float)pal->triangle.h - (float)pal->triangle.h));
if (x < 0) { x = 0; }
if (x > y) { x = y; }
AG_DrawCircle(pal,
pal->triangle.x + x - y/2,
pal->triangle.y + y,
pal->selcircle_r,
AG_ColorRGB(0,0,0));
x = a*pal->rAlpha.w/255;
if (x > pal->rAlpha.w-3) { x = pal->rAlpha.w-3; }
AG_HSV2RGB((cur_h*360.0)/(2*AG_PI), cur_s, cur_v, &r, &g, &b);
/* Draw the color preview. */
if (!(pal->flags & AG_HSVPAL_NOPREVIEW)) {
AG_DrawRectFilled(pal,
AG_RECT(pal->rAlpha.x, pal->rAlpha.y, pal->rAlpha.w, 8),
AG_ColorRGB(r,g,b));
}
/* Draw the transparency color preview. */
if (!(pal->flags & AG_HSVPAL_NOALPHA)) {
AG_DrawLineV(pal,
pal->rAlpha.x + x,
pal->rAlpha.y + 1,
pal->rAlpha.y + pal->rAlpha.h,
AG_ColorRGBA(0,0,0,0));
AG_DrawLineV(pal,
pal->rAlpha.x + x + 1,
pal->rAlpha.y + 1,
pal->rAlpha.y + pal->rAlpha.h,
AG_ColorRGBA(240,240,240,0));
AG_DrawLineV(pal,
pal->rAlpha.x + x + 2,
pal->rAlpha.y + 1,
pal->rAlpha.y + pal->rAlpha.h,
AG_ColorRGBA(0,0,0,0));
}
/* Display RGB/HSV values */
if (pal->flags & (AG_HSVPAL_SHOW_RGB|AG_HSVPAL_SHOW_HSV)) {
AG_Surface *s;
/* XXX inefficient */
AG_PushTextState();
AG_TextBGColorRGB(0,0,0);
AG_TextColorRGB(255,255,255);
if ((pal->flags & AG_HSVPAL_SHOW_RGB) &&
(pal->flags & AG_HSVPAL_SHOW_HSV)) {
s = AG_TextRenderf(
"RGB: %u,%u,%u\n"
"HSV: %.02f,%.02f,%.02f",
r, g, b,
(cur_h*360.0)/(2.0*AG_PI),
cur_s, cur_v);
} else if (pal->flags & AG_HSVPAL_SHOW_RGB) {
s = AG_TextRenderf("RGB: %u,%u,%u", r, g, b);
} else {
s = AG_TextRenderf("HSV: %.01f,%.02f,%.02f",
(cur_h*360.0)/(2.0*AG_PI),
cur_s, cur_v);
}
AG_WidgetBlit(pal, s,
WIDTH(pal)/2 - s->w/2,
pal->rAlpha.y + pal->rAlpha.h/2 - s->h/2);
AG_SurfaceFree(s);
AG_PopTextState();
}
}
