Lightning Launcher

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====== About the script ======
  * Purpose : Set rectangles, circles, ovals, etc. as icons and backgrounds
  * Author : TBog
  * Link: www.google.com/+BogdanTautuTBog

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

Still in development, but the main feature will be that everything will be customizable with an internal GUI
  - Set the script in the category "Lightning menu" and "Item menu" then long-press on any container (panel was tested) or shortcut and run the script.
  - A dialog will appear that will guide you further.
  - Remember to scroll (if the preview image is too big) for the buttons

Known issue: for arcs you can't define the start and sweep angles
====== Script code ======
<sxh javascript>

// v1.0
function DrawData()
{
	this.shapeArr = [];
	this.width = -1;
	this.height = -1;
}
var enumShapeType = {
	RECTANGLE: 1,
	OVAL: 2,
	ARC: 3,
	properties: {
		1: {name: 'Rectangle'},
		2: {name: 'Oval'},
		3: {name: 'Arc'},
	},
	findByName: function( name )
	{
		for ( var key in enumShapeType.properties )
		{
			if ( enumShapeType.properties[key].name == name )
				return key;
		}
		return enumShapeType.RECTANGLE;
	},
	getNameArr: function()
	{
		return [
			enumShapeType.properties[enumShapeType.RECTANGLE].name,
			enumShapeType.properties[enumShapeType.OVAL].name,
			enumShapeType.properties[enumShapeType.ARC].name
		];
	},
	getIdx: function( shapeType )
	{
		return shapeType - 1; // TODO: search in getNameArr
	}
};
function ShapeInfo()
{
	this.name = "shape";
	this.type = enumShapeType.OVAL;
	this.color = 0x80ff0000;
	this.width = -1;
	this.height = -1;
	this.offsetX = 0;
	this.offsetY = 0;
	this.fill = true;
}
function empty( mixedVar )
{
	/*discuss at: http://locutus.io/php/empty/ */
	var undef, key, i, len;
	var	emptyValues = [undef, null, false, 0, '', '0'];
	for ( i = 0, len = emptyValues.length; i < len; i++ )
	{
		if ( mixedVar === emptyValues[i] )
		{
			return true;
		}
	}
	if ( typeof mixedVar === 'object' )
	{
		for ( key in mixedVar )
		{
			if ( Object.hasOwnProperty.call(mixedVar, key) )
			{
				return false;
			}
		}
		return true;
	}
	return false;
}

function drawShapes( canvas, shapeArr )
{
	bindClass( 'android.graphics.Paint' );
	
	var w = canvas.getWidth();
	var h = canvas.getHeight();
	for ( var i = 0; i < shapeArr.length; i+= 1 )
	{
		var shapeInfo = shapeArr[i];
		var paint = new Paint( Paint.ANTI_ALIAS_FLAG );
		paint.setColor( shapeInfo.color );
		if ( shapeInfo.fill )
			paint.setStyle( Paint.Style.FILL_AND_STROKE );
		else
			paint.setStyle( Paint.Style.STROKE );
		var shapeWidth = (shapeInfo.width >= 0) ? shapeInfo.width : w;
		var shapeHeight = (shapeInfo.height >= 0) ? shapeInfo.height : h;
		switch( parseInt(shapeInfo.type) )
		{
			case enumShapeType.RECTANGLE:
				canvas.drawRect( shapeInfo.offsetX, shapeInfo.offsetY, shapeInfo.offsetX + shapeWidth, shapeInfo.offsetY + shapeHeight, paint );
			break;
			case enumShapeType.OVAL:
				canvas.drawOval( shapeInfo.offsetX, shapeInfo.offsetY, shapeInfo.offsetX + shapeWidth, shapeInfo.offsetY + shapeHeight, paint );
			break;
			case enumShapeType.ARC:
				canvas.drawArc( shapeInfo.offsetX, shapeInfo.offsetY, shapeInfo.offsetX + shapeWidth, shapeInfo.offsetY + shapeHeight, -90, 45, true, paint );
			break;
			default:
				alert('Unknown shape type "' + shapeInfo.type + '"');
		}
	}
}

var g_cache = {itemId: null, data: null};
function getDrawData( item )
{
	if ( g_cache.itemId === item.getId() )
		return g_cache.data;
	var jsonData = item.getTag('tbImgData');
	if ( empty( jsonData ) )
	{
		g_cache.data = new DrawData();
	}
	else
	{
		var data = JSON.parse( jsonData );
		if ( empty( data ) )
		{
			g_cache.data = new DrawData();
		}
		else
		{
			g_cache.data = data;
		}
	}
	g_cache.itemId = item.getId();
	if ( g_cache.data.width <= 0 )
		g_cache.data.width = item.getWidth();
	if ( g_cache.data.height <= 0 )
		g_cache.data.height = item.getHeight();
	return g_cache.data;
}

function setDrawData( item, data )
{
	if ( empty(data) )
		item.setTag( 'tbImgData', null );
	else
		item.setTag( 'tbImgData', JSON.stringify(data) );
	g_cache.itemId = item.getId();
	g_cache.data = data;
}

function showEditShape( item, shapeIdx )
{
	bindClass( 'android.app.AlertDialog' );
	bindClass( 'net.pierrox.lightning_launcher.prefs.LLPreferenceListView' );
	bindClass( 'net.pierrox.lightning_launcher.prefs.LLPreferenceText' );
	bindClass( 'net.pierrox.lightning_launcher.prefs.LLPreferenceList' );
	bindClass( 'net.pierrox.lightning_launcher.prefs.LLPreferenceColor' );
	bindClass( 'net.pierrox.lightning_launcher.prefs.LLPreferenceSlider' );
	bindClass( 'net.pierrox.lightning_launcher.prefs.LLPreferenceCheckBox' );
	
	var drawData = getDrawData( item );
	var shapeInfo = drawData.shapeArr[shapeIdx];
	
	var ctx = getActiveScreen().getContext();
	var builder = new AlertDialog.Builder( ctx, R.style.Theme_Material_Dialog );
	var ctxTheme = new ContextThemeWrapper( ctx, R.style.Theme_Material_Dialog );
	
	var prefName = new LLPreferenceText( 0, 'Name', shapeInfo.name, 'shape' );
	var prefType = new LLPreferenceList( 0, 'Shape', enumShapeType.getNameArr(), enumShapeType.getIdx(shapeInfo.type), enumShapeType.OVAL );
	var prefColor = new LLPreferenceColor( 0, 'Color', null, shapeInfo.color, 0xFFff0000, true );
	var prefWidth = new LLPreferenceSlider(0, 'Width', 'pixel or -1', shapeInfo.width, -1, 'INT', 0, 512, 1, 'px');
	var prefHeight = new LLPreferenceSlider(0, 'Height', 'pixel or -1', shapeInfo.height, -1, 'INT', 0, 512, 1, 'px');
	var prefOffX = new LLPreferenceSlider(0, 'Offset X', 'pixel', shapeInfo.offsetX, 0, 'INT', 0, 512, 1, 'px');
	var prefOffY = new LLPreferenceSlider(0, 'Offset Y', 'pixel', shapeInfo.offsetY, 0, 'INT', 0, 512, 1, 'px');
	var prefFill = new LLPreferenceCheckBox( 0, 'Fill', null, shapeInfo.fill, null );
	
	var prefList = new LLPreferenceListView( ctxTheme, null );
	prefList.setCompactMode(true);
	prefList.setPreferences( [
		prefName,
		prefType,
		prefColor,
		prefWidth,
		prefHeight,
		prefOffX,
		prefOffY,
		prefFill
	] );

	builder.setView( prefList );
	builder.setTitle( 'Edit shape #' + shapeIdx );
	var dialog;
	
	builder.setCancelable( false );
	builder.setNeutralButton( 'Close',
	{
		onClick: function( dialog, id )
		{
			dialog.dismiss();
			var time = setTimeout(function(){clearTimeout(time); showShapeMenu(item);}, 0);
		}
	} );
	builder.setPositiveButton( 'Save',
	{
		onClick: function( dialog, id )
		{
			var drawData = getDrawData( item );
			var shapeInfo = drawData.shapeArr[shapeIdx];
			
			shapeInfo.name = prefName.getValue();
			shapeInfo.type = enumShapeType.findByName( prefType.getLabels()[prefType.getValueIndex()] );
			shapeInfo.color = prefColor.getColor();
			shapeInfo.width = prefWidth.getValue();
			shapeInfo.height = prefHeight.getValue();
			shapeInfo.offsetX = prefOffX.getValue();
			shapeInfo.offsetY = prefOffY.getValue();
			shapeInfo.fill = prefFill.isChecked();
			
			setDrawData( item, drawData );
			dialog.dismiss();
			var time = setTimeout(function(){clearTimeout(time); showShapeMenu(item);}, 0);
		}
	} );
	dialog = builder.create();
	dialog.show();
}

function showShapeMenu( item )
{
	bindClass( 'android.app.AlertDialog' );
	bindClass( 'android.content.DialogInterface' );
	bindClass( 'android.text.Html' );
	bindClass( 'android.text.InputType' );
	bindClass( 'android.view.View' );
	bindClass( 'android.view.ViewGroup' );
	bindClass( 'android.view.ContextThemeWrapper' );
	bindClass( 'android.view.ViewGroup.LayoutParams' );
	bindClass( 'android.widget.ListView' );
	bindClass( 'android.widget.LinearLayout' );
	bindClass( 'android.widget.LinearLayout.LayoutParams' );
	bindClass( 'android.widget.ScrollView' );
	bindClass( 'android.widget.TextView' );
	bindClass( 'android.widget.EditText' );
	bindClass( 'android.widget.ImageView' );
	bindClass( 'android.widget.Button' );
	bindClass( 'android.graphics.Bitmap' );
	bindClass( 'android.graphics.Canvas' );
	bindClass( 'android.graphics.drawable.BitmapDrawable' );
	bindClass( 'android.R' );

	var drawData = getDrawData( item );
	
	var ctx = getActiveScreen().getContext();
	var builder = new AlertDialog.Builder( ctx, R.style.Theme_Material_Dialog );
	var ctxTheme = new ContextThemeWrapper( ctx, R.style.Theme_Material_Dialog );
	var rootView = new ScrollView( ctxTheme );
	var linearView = new LinearLayout( ctxTheme );
	
	rootView.addView( linearView );
	builder.setView( rootView );
	builder.setTitle( 'Shape list' );
	var dialog;
	
	linearView.setOrientation( LinearLayout.VERTICAL );
	
	var shapeInfoLayout, shapeName, shapeRemove, shapeEdit;
	for ( var i = 0; i < drawData.shapeArr.length; i+= 1 )
	{
		var shapeInfo = drawData.shapeArr[i];
		if ( empty(shapeInfo) )
		{
			drawData.shapeArr.splice(i--, 1);
			continue;
		}
		linearView.addView( shapeInfoLayout = new LinearLayout( ctxTheme ) );
		
		shapeInfoLayout.addView( shapeName = new TextView( ctxTheme ), new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, 1.0) );
		shapeName.setText( Html.fromHtml('<b>' + i + '</b>. ' + shapeInfo.name) );
		
		shapeInfoLayout.addView( shapeEdit = new ImageView( ctxTheme ) );
		shapeEdit.setImageResource( R.drawable.ic_menu_edit );
		shapeEdit.setTag(i);
		shapeEdit.setOnClickListener( new View.OnClickListener()
		{
			onClick: function( view )
			{
				var idx = parseInt( view.getTag() );
				var drawData = getDrawData( item );
				if ( idx >= drawData.shapeArr.length )
				{
					Android.makeNewToast( 'Failed to edit shape #' + idx, true ).show();
				}

				Android.makeNewToast( 'Edit shape #' + idx, true ).show();
				dialog.dismiss();
				var time = setTimeout(function(){clearTimeout(time); showEditShape(item, idx);}, 0);
			}
		} );

		shapeInfoLayout.addView( shapeRemove = new ImageView( ctxTheme ) );
		shapeRemove.setImageResource( R.drawable.ic_menu_delete );
		shapeRemove.setTag(i);
		shapeRemove.setOnClickListener( new View.OnClickListener()
		{
			onClick: function( view )
			{
				var idx = parseInt( view.getTag() );
				var drawData = getDrawData( item );
				if ( idx >= drawData.shapeArr.length )
				{
					Android.makeNewToast( 'Failed to remove shape #' + idx, true ).show();
				}
				delete drawData.shapeArr[idx];
				Android.makeNewToast( 'Removed shape #' + idx, true ).show();
				setDrawData(item, drawData);
				dialog.dismiss();
				var time = setTimeout(function(){clearTimeout(time); showShapeMenu(item);}, 0);
			}
		} );
	}
	
	var shapeAdd;
	linearView.addView( shapeInfoLayout = new LinearLayout( ctxTheme ) );
	shapeInfoLayout.addView( shapeAdd = new ImageView( ctxTheme ) );
	shapeAdd.setImageResource( R.drawable.ic_menu_add );
	shapeAdd.setOnClickListener( new View.OnClickListener()
	{
		onClick: function( view )
		{
			var drawData = getDrawData( item );
			drawData.shapeArr.push( new ShapeInfo() );
			Android.makeNewToast( 'New shape', true ).show();
			setDrawData(item, drawData);
			dialog.dismiss();
			var time = setTimeout(function(){clearTimeout(time); showShapeMenu(item);}, 0);
		}
	} );

	linearView.addView( shapeName = new TextView( ctxTheme ) );
	shapeName.setText( 'Preview' );
	
	var bitmap = Bitmap.createBitmap(drawData.width, drawData.height, Bitmap.Config.ARGB_8888);
	var c = new Canvas( bitmap );
	drawShapes( c, drawData.shapeArr );
	
	var shapeCanvas;
	linearView.addView( shapeCanvas = new ImageView( ctxTheme ) );
	shapeCanvas.setImageDrawable( new BitmapDrawable(ctx.getResources(), bitmap) );

	var hex = Number(item.getId()).toString(16);
	hex = "000000".substr(0, 6 - hex.length) + hex;
	linearView.addView( shapeName = new TextView( ctxTheme ) );
	shapeName.setText( Html.fromHtml('Current selected item is <b>#' + hex + '</b>. ') );
	
	var editWidth, editHeight;
	linearView.addView( shapeInfoLayout = new LinearLayout( ctxTheme ) );
	shapeInfoLayout.addView( shapeName = new TextView( ctxTheme ) );
	shapeName.setText( 'Width' );
	shapeInfoLayout.addView( editWidth = new EditText( ctxTheme ) );
	editWidth.setText( '' + drawData.width );
	editWidth.setInputType( InputType.TYPE_CLASS_NUMBER );

	linearView.addView( shapeInfoLayout = new LinearLayout( ctxTheme ) );
	shapeInfoLayout.addView( shapeName = new TextView( ctxTheme ) );
	shapeName.setText( 'Height' );
	shapeInfoLayout.addView( editHeight = new EditText( ctxTheme ) );
	editHeight.setText( '' + drawData.height );
	editHeight.setInputType( InputType.TYPE_CLASS_NUMBER );

	var btn;
	linearView.addView( btn = new Button( ctxTheme ) );
	btn.setAllCaps( false );
	btn.setText( 'Save size' );
	btn.setOnClickListener( new View.OnClickListener()
	{
		onClick: function( view )
		{
			var drawData = getDrawData( item );
			
			drawData.width = parseInt( editWidth.getText() );
			drawData.height = parseInt( editHeight.getText() );
			
			setDrawData( item, drawData );
			var time = setTimeout(function(){clearTimeout(time); showShapeMenu(item);}, 0);
		}
	});

	linearView.addView( shapeName = new TextView( ctxTheme ) );
	shapeName.setText( 'Actions' );
	
	if ( item.getType() == 'Shortcut' )
	{
		linearView.addView( btn = new Button( ctxTheme ) );
		btn.setAllCaps( false );
		btn.setText( 'Set custom icon' );
		btn.setOnClickListener( new View.OnClickListener()
		{
			onClick: function( view )
			{
				var drawData = getDrawData( item );
				var img = LL.createImage( drawData.width, drawData.height );
				item.setCustomIcon( img );
				drawShapes( img.draw(), drawData.shapeArr );
				img.update();
			}
		});
		
		linearView.addView( btn = new Button( ctxTheme ) );
		btn.setAllCaps( false );
		btn.setText( 'Set image (temporary)' );
		btn.setOnClickListener( new View.OnClickListener()
		{
			onClick: function( view )
			{
				var img = LL.createImage(
				{
					draw: function(context)
					{
						var canvas = context.getCanvas();
						var item = context.getItem(); // Currently this method will only return a value when drawing shortcut icons (set through setImage(Image)), otherwise it will return null.
						drawShapes( canvas, getDrawData( item ).shapeArr );
					}
				}, -1, -1);
				item.setImage( img );
			}
		});
		
		linearView.addView( btn = new Button( ctxTheme ) );
		btn.setAllCaps( false );
		btn.setText( 'Set icon background layer' );
		btn.setOnClickListener( new View.OnClickListener()
		{
			onClick: function( view )
			{
				var drawData = getDrawData( item );
				var img = LL.createImage( drawData.width, drawData.height );
				item.setIconLayer( img, 'b', false );
				drawShapes( img.draw(), drawData.shapeArr );
				img.update();
				item.setIconLayer( img, 'b', true );
			}
		});
	}
	
	linearView.addView( btn = new Button( ctxTheme ) );
	btn.setAllCaps( false );
	btn.setText( 'Set box background' );
	btn.setOnClickListener( new View.OnClickListener()
	{
		onClick: function( view )
		{
			var drawData = getDrawData( item );
			var img = LL.createImage( drawData.width, drawData.height );
			item.setBoxBackground( img, 'nsf', false );
			drawShapes( img.draw(), drawData.shapeArr );
			img.update();
			item.setBoxBackground( img, 'nsf', true );
		}
	});
	
	builder.setCancelable( true );
	builder.setNeutralButton( 'Close',
	{
		onClick: function( dialog, id )
		{
			dialog.dismiss();
		}
	} );
	dialog = builder.create();
	dialog.setOnShowListener( new DialogInterface.OnShowListener()
	{
		onShow:function()
		{
			rootView.scrollTo(0,0);
		}
	} );
	dialog.show();
}

var event = getEvent();
switch ( event.getSource() )
{
	case 'MENU_ITEM':
	case 'I_CLICK':
	case 'SHORTCUT':
		showShapeMenu( event.getItem() );
		return;
	case 'MENU_APP':
		showShapeMenu( event.getContainer().getOpener() );
		return;
	default:
		alert( 'unknown event source ' + event.getSource() );
		return;
}

</sxh>
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