@ericchesek I call b.changed() in the mouseCB making it fire at each drag movement which is bad. The button callback should be called when mouse is released, or using a check to see if the button state changed so the CB doesn't trigger constantly...
pnl.setMouseCallback(function(event)
{
if (event.clicked)
this.data.startPos = {x:event.x, y:event.y};
if (event.drag)
{
this.data.isSelecting = true;
this.data.currPos = {x:event.x, y:event.y};
this.data.p.clear();
this.data.p.startNewSubPath(this.data.startPos.x, this.data.startPos.y);
this.data.p.lineTo(this.data.currPos.x, this.data.startPos.y);
this.data.p.lineTo(this.data.currPos.x, this.data.currPos.y);
this.data.p.lineTo(this.data.startPos.x, this.data.currPos.y);
this.data.p.closeSubPath();
}
if (this.data.isSelecting)
updateButtons(event.mouseUp);
if (event.mouseUp)
this.data.isSelecting = false;
this.repaint();
});
inline function updateButtons(isRelease)
{
for (b in btns)
{
// just an imaginary line in the middle of the button representing its position
local buttonLineStart = [b.getGlobalPositionX(), b.getGlobalPositionY() + b.getHeight()/2];
local buttonLineEnd = [b.getGlobalPositionX() + b.getWidth(), b.getGlobalPositionY() + b.getHeight()/2];
local isIntersecting = this.data.p.getIntersection(buttonLineStart, buttonLineEnd, true);
b.setValue(isIntersecting != false);
if (isRelease)
b.changed();
}
}
