Lightning Launcher

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====== About the script ======
  * Purpose : This script will take all app shortcuts and place them in a circle. When you scroll the container (desktop) the circle will rotate.
  * Author : TBog
  * Link: www.google.com/+BogdanTautuTBog

====== How to use the script ======

  - All items that participate in the wheel must be off the grid and pinned.
  - The desktop must be set to scroll horizontal only
  - Make 2 shortcuts and place one to the far left and one to the far right. They will delimit the scroll space. Name them with a dot character.
  - Set the script to the Position changed event of the container (desktop).
  - You can change the order of the items in the circle using “Move forward/backwards” button. The top-most item is at 12-o'clock and going clockwise.

Caution: on my device (stock i9505 with android 4.4.2) LLX v9.9.7 crashes after i rotate a couple of times. Others do not have this issue.
TODO: after the crash is fixed i will improve the following:
  * Make the scrolling infinite
  * Make a setup script (will need to be able to create shortcuts from script)
  * Make the visible item count customizable and hide excess items
====== Script code ======
<code>
var c = LL.getEvent().getContainer();
var a = [];
var na = 0;
/*how much to rotate, to increase speed multiply with something greater than 1*/
var offsetRot = c.getPositionX() / c.getWidth() * Math.PI * -2;
var items = c.getItems();
for ( var i=items.getLength()-1; i>=0; i-=1 )
{
	var item = items.getAt(i);
	if ( item.getType()!='Shortcut' )
	{
		/*alert(item.getType());*/
		continue;
	}
	if ( item.getLabel().substr(0,1)=='.' )
		continue;
	a[na++] = item;
}
var x,y;
var w2 = c.getWidth()/2;
var h2 = c.getHeight()/2;
var radius = Math.min(w2, h2) * 0.8;
for ( var i=0; i<na; i+=1 )
{
	x = Math.cos(Math.PI*2*i/na-Math.PI/2+offsetRot) * radius;
	y = Math.sin(Math.PI*2*i/na-Math.PI/2+offsetRot) * radius;
	/* move circle to the middle of the screen */
	x+= w2;
	y+= h2;
	/* offset to item pivot */
	x-= a[i].getWidth()/2;
	y-= a[i].getHeight()/2;
	
	a[i].setPosition(x, y);
}
</code>
Lightning Launcher

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