Exemple #1
0
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++;
}
Exemple #2
0
/* 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);  
}
Exemple #3
0
/* 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);
}
Exemple #4
0
/*
 * 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);
}
Exemple #5
0
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;
}
Exemple #6
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();
  }
}