void animate2(void) {
const float step = 0.05;
static int t = 0;
float a,r1,r2;
pgSetMapping(gc,0,0,1000,1000,PG_MAP_SQUARESCALE);
/* Fade and blur */
if (!(t&3)) {
pgSetColor(gc,PGCF_ALPHA | PGC_BLACK | (4<<24));
pgSetLgop(gc,PG_LGOP_ALPHA);
pgRect(gc,0,0,1000,1000);
pgSetLgop(gc,PG_LGOP_NONE);
}
pgBlur(gc,0,0,1000,1000,2);
/* Draw our polar function defined above */
pgSetColor(gc, 0xFF7344);
for (a=0;a<2*pi;a+=step) {
r1 = radius(a,t)*300;
r2 = radius(a+step,t)*300;
pgLine(gc,cos(a)*r1+500,sin(a)*r1+500,
cos(a+step)*r2+500,sin(a+step)*r2+500);
}
pgContextUpdate(gc);
t++;
}
/* Functions to create a VFD-style display and set it's text */
void new_vfd_label(pghandle canvas) {
pgcontext gc;
pghandle h = pgNewString(" ");
/* Use a canvas widget to do a 'inverse VFD style' phone number display
*
* Code like this makes me really glad that the canvas widget is
* as smart as it is about scaling and calculating preferred sizes
*/
gc = pgNewCanvasContext(canvas,PGFX_PERSISTENT);
pgSetMapping(gc,0,0,1,1,PG_MAP_SCALE);
pgSetColor(gc,0xBFEDBD); /* Pastel green */
pgRect(gc,0,0,1,1);
pgSetColor(gc,0x000000);
pgFrame(gc,0,0,1,1);
pgSetFont(gc,pgNewFont(NULL,20,0));
pgText(gc,0,0,h);
pgSetPayload(canvas,h);
pgDeleteContext(gc);
}
/* Small utility function to XOR a key's rectangle */
void xorKey(struct key_entry *k) {
pgcontext gc;
if (!k)
return;
gc = pgNewCanvasContext(wCanvas,PGFX_IMMEDIATE);
pgSetLgop(gc,PG_LGOP_XOR);
pgSetColor(gc,0xFFFFFF);
pgRect(gc,k->x,k->y,k->w,k->h);
pgContextUpdate(gc);
pgDeleteContext(gc);
}
/*
* Draw the contents of the disabled keyboard
* This could be filled with an image, a logo, etc.
*/
void drawDisabledKeyboard ()
{
pgcontext gc = pgNewCanvasContext (wDisabled, PGFX_PERSISTENT);
pgSetMapping (gc, 0, 0, 100, 100, PG_MAP_SCALE);
pgSetColor (gc, 0xFFFFFF);
pgRect (gc, 0, 0, 100, 100);
/* ... */
pgContextUpdate (gc);
pgDeleteContext (gc);
}
int btnTarget(struct pgEvent *evt) {
pgcontext gc;
pghandle wClose,wTB;
int i,x,w;
pgEnterContext();
pgDialogBox("Target");
wTB = pgNewWidget(PG_WIDGET_TOOLBAR,0,0);
pgSetWidget(PGDEFAULT,
PG_WP_SIDE,PG_S_BOTTOM,
0);
/* Just draw something fun here */
pgNewWidget(PG_WIDGET_CANVAS,0,0);
gc = pgNewCanvasContext(PGDEFAULT,PGFX_PERSISTENT);
pgSetMapping(gc,0,0,100,100,PG_MAP_SCALE);
for (i=0;i<=4;i++) {
x = i*10;
w = 100-(x<<1);
pgSetColor(gc,i&1 ? 0xFFFFFF : 0xFF0000);
pgFEllipse(gc,x,x,w,w);
pgSetColor(gc,0x000000);
pgEllipse(gc,x,x,w,w);
}
pgContextUpdate(gc);
pgDeleteContext(gc);
/* A close button */
wClose = pgNewWidget(PG_WIDGET_BUTTON,PG_DERIVE_INSIDE,wTB);
pgSetWidget(PGDEFAULT,
PG_WP_TEXT,pgNewString("Close"),
PG_WP_HOTKEY,PGKEY_RETURN,
PG_WP_SIDE,PG_S_RIGHT,
0);
/* Wait for a click on the canvas, then clean up */
while (pgGetEvent()->from != wClose);
pgLeaveContext();
return 0;
}
/* int main(int argc,char **argv) { */
void chaos_fire(pghandle widget)
{
pgcontext bg;
/* pgInit(argc,argv); */
/* pgRegisterApp(PG_APP_NORMAL,"Burning cinder fury of crimson chaos fire",0); */
/* pgNewWidget(PG_WIDGET_CANVAS,0,0); */
bg = pgNewCanvasContext(widget,PGFX_PERSISTENT);
pgSetMapping(bg,0,0,100,100,PG_MAP_SCALE);
pgSetColor(bg, 0);
pgRect(bg,0,0,100,100);
gc = pgNewCanvasContext(widget,PGFX_IMMEDIATE);
idleHandlerAdd(animate2);
return;
while (1) {
animate2();
pgEventPoll();
}
}