static void createGUI(lua_State *L)
{
window *w = malloc(sizeof(window));
windowInit(w, "main", 300, 400);
widgetReposition(WIDGET(w), 50, 50);
widgetShow(WIDGET(w));
// GL stuff
widgetEnableGL(WIDGET(w));
WIDGET(w)->vtbl->doDraw = paintWithGL;
widgetAddTimerEventHandler(WIDGET(w), EVT_TIMER_SINGLE_SHOT, 3000,
timer, NULL, NULL);
}
static bool widgetToolTipMouseEnterCallback(widget *self, const event *evt,
int handlerId, void *userData)
{
// Only relevant if we have a tool-tip
if (self->toolTip)
{
// Install a single-shot event handler to show the tip
widgetAddTimerEventHandler(self, EVT_TIMER_SINGLE_SHOT, 2000,
widgetToolTipTimerCallback, NULL, NULL);
}
return true;
}
int widgetAddAnimation(widget *self, int nframes,
const animationFrame *frames)
{
int i;
int lastTime = 0;
int translateCount = 0, rotateCount = 0, scaleCount = 0, alphaCount = 0;
vector *ourFrames;
animationFrame *currFrame;
/*
* We need to make sure that the frames are in order and that there is
* enough information to do the required interpolation.
*/
for (i = 0; i < nframes; i++)
{
// Make sure the frame N+1 follows after N
assert(frames[i].time >= lastTime);
// Update the time
lastTime = frames[i].time;
// Update the animation frame count
switch (frames[i].type)
{
case ANI_TYPE_TRANSLATE:
translateCount++;
break;
case ANI_TYPE_ROTATE:
rotateCount++;
break;
case ANI_TYPE_SCALE:
scaleCount++;
break;
case ANI_TYPE_ALPHA:
alphaCount++;
break;
default:
assert(!"Invalid animation type");
break;
}
}
// Ensure the frame counts are valid
assert(translateCount != 1);
assert(rotateCount != 1);
assert(scaleCount != 1);
assert(alphaCount != 1);
// Copy the frames over to our own vector
ourFrames = vectorCreate();
for (i = 0; i < nframes; i++)
{
// Allocate space for the frame
currFrame = malloc(sizeof(animationFrame));
// Copy the frame
*currFrame = frames[i];
// De-normalise the frames time (so that it is absolute)
currFrame->time += widgetGetTime();
// Add the frame to the vector
vectorAdd(ourFrames, currFrame);
}
// Install the animation timer event handler
return widgetAddTimerEventHandler(self, EVT_TIMER_PERSISTENT, 10,
widgetAnimationTimerCallback,
widgetAnimationTimerCallback, ourFrames);
}
