[royale-asjs] 01/15: DropShadowFilter, first implementation

[ha...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

harbs pushed a commit to branch develop
in repository https://gitbox.apache.org/repos/asf/royale-asjs.git

commit a0dd53771e898c7e30e0bc12ae7b52a1d8e679f3
Author: DESKTOP-RH4S838\Yishay <yi...@hotmail.com>
AuthorDate: Wed Jun 27 13:22:35 2018 +0300

    DropShadowFilter, first implementation
---
 .../Graphics/src/main/resources/svg-manifest.xml   |   1 +
 .../royale/org/apache/royale/svg/DropShadowBead.as | 205 +++++++++++++++++++++
 2 files changed, 206 insertions(+)

diff --git a/frameworks/projects/Graphics/src/main/resources/svg-manifest.xml b/frameworks/projects/Graphics/src/main/resources/svg-manifest.xml
index 37f2182..ee91123 100644
--- a/frameworks/projects/Graphics/src/main/resources/svg-manifest.xml
+++ b/frameworks/projects/Graphics/src/main/resources/svg-manifest.xml
@@ -22,6 +22,7 @@
 <componentPackage>
 	<component id="TransformBead" class="org.apache.royale.svg.TransformBead" />
 	<component id="ClipBead" class="org.apache.royale.svg.ClipBead" />
+	<component id="DropShadowBead" class="org.apache.royale.svg.DropShadowBead" />
 	<component id="MaskBead" class="org.apache.royale.svg.MaskBead" />
 	<component id="DisableClipBead" class="org.apache.royale.svg.DisableClipBead" />
 	<component id="LinearGradient" class="org.apache.royale.svg.LinearGradient" />
diff --git a/frameworks/projects/Graphics/src/main/royale/org/apache/royale/svg/DropShadowBead.as b/frameworks/projects/Graphics/src/main/royale/org/apache/royale/svg/DropShadowBead.as
new file mode 100644
index 0000000..ef43f4f
--- /dev/null
+++ b/frameworks/projects/Graphics/src/main/royale/org/apache/royale/svg/DropShadowBead.as
@@ -0,0 +1,205 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+//  Licensed to the Apache Software Foundation (ASF) under one or more
+//  contributor license agreements.  See the NOTICE file distributed with
+//  this work for additional information regarding copyright ownership.
+//  The ASF licenses this file to You under the Apache License, Version 2.0
+//  (the "License"); you may not use this file except in compliance with
+//  the License.  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////////
+package org.apache.royale.svg
+{
+	
+	import org.apache.royale.core.IBead;
+	import org.apache.royale.core.IRenderedObject;
+	import org.apache.royale.core.IStrand;
+
+	COMPILE::SWF {
+		import flash.display.Graphics;
+		import flash.display.Sprite;
+		import flash.display.DisplayObject;
+	}
+
+	COMPILE::JS
+	{
+		import org.apache.royale.utils.UIDUtil;
+	}
+	/**
+	 *  The DropShadowBead bead allows you to filter
+	 *  
+	 *  @langversion 3.0
+	 *  @playerversion Flash 10.2
+	 *  @playerversion AIR 2.6
+	 *  @productversion Royale 0.0
+	 */
+	public class DropShadowBead implements IBead
+	{
+		private var _strand:IStrand;
+		private var _dx:Number = 0;
+		private var _dy:Number = 0;
+		private var _stdDeviation:Number = 0;
+		private var _width:String = "200%";
+		private var _height:String = "200%";
+		
+		public function DropShadowBead()
+		{
+		}
+		
+		/**
+		 *  @copy org.apache.royale.core.IBead#strand
+		 *  
+		 *  @langversion 3.0
+		 *  @playerversion Flash 10.2
+		 *  @playerversion AIR 2.6
+		 *  @productversion Royale 0.9.3
+		 */		
+		public function set strand(value:IStrand):void
+		{
+			_strand = value;
+			filter();
+		}
+		
+		COMPILE::SWF
+		private function filter():void
+		{
+//			if (!path)
+//			{
+//				return;
+//			}
+//			var element:DisplayObject = host.$displayObject as DisplayObject;
+//			var mask:Sprite = new Sprite();
+//			var g:Graphics = mask.graphics;
+//			g.beginFill(0);
+//			path.draw(g);
+//			g.endFill();
+//			// remove existing mask from display list
+//			if (element.mask && element.mask.parent)
+//			{
+//				element.mask.parent.removeChild(element.mask);
+//			}
+//			// add new mask to display list
+//			if (element.parent)
+//			{
+//				element.parent.addChild(mask);
+//			}
+//			// set mask
+//			mask.x = element.x;
+//			mask.y = element.y;
+//			element.mask = mask;
+		}
+		/**
+		 * @royaleignorecoercion Element
+		 * @royaleignorecoercion Object
+		 */
+		COMPILE::JS
+		private function filter():void
+		{
+			var svgElement:Node = host.element as Element;
+			var defs:Element = getChildNode(svgElement, "defs") as Element;
+			var filter:Element = getChildNode(defs, "filter") as Element;
+			filter.id = "myDropShadow" + UIDUtil.createUID();
+			filter.setAttribute("width", _width);
+			filter.setAttribute("height", _height);
+			// clean up existing filter
+			if (filter.hasChildNodes())
+			{
+				var childNodes:Object = filter.childNodes;
+				for (var i:int = 0; i < childNodes.length; i++)
+				{
+					filter.removeChild(childNodes[i]);
+				}
+			}
+			// create offset
+			var offset:Element = createChildNode(filter, "feOffset") as Element;
+			offset.setAttribute("dx", dx);
+			offset.setAttribute("dy", dy);
+			offset.setAttribute("in", "SourceAlpha");
+			offset.setAttribute("result", "offsetResult");
+			// create blur
+			var blur:Element = createChildNode(filter, "feGaussianBlur") as Element;
+			blur.setAttribute("stdDeviation", stdDeviation);
+			blur.setAttribute("result", "blurResult");
+			// create blend
+			var blend:Element = createChildNode(filter, "feBlend") as Element;
+			blend.setAttribute("in", "SourceGraphic");
+			blend.setAttribute("in2", "blurResult");
+			blend.setAttribute("mode", "normal");
+			// apply filter
+			host.element.style["filter"] = "url(#" + filter.id + ")";
+		}
+		
+		COMPILE::JS
+		private function getChildNode(node:Node, tagName:String):Node
+		{
+			if (!node.hasChildNodes())
+			{
+				return createChildNode(node, tagName);
+			}
+			var childNodes:Object = node.childNodes;
+			for (var i:int = 0; i < childNodes.length; i++)
+			{
+				if (childNodes[i].tagName == tagName)
+				{
+					return childNodes[i];
+				}
+					
+			}
+			return createChildNode(node, tagName);
+		}
+		
+		COMPILE::JS
+		private function createChildNode(parent:Node, tagName:String):Node
+		{
+			var svgNs:String = "http://www.w3.org/2000/svg";
+			var element:Node = window.document.createElementNS(svgNs, tagName);
+			parent.appendChild(element);
+			return element;
+		}
+		
+		public function get host():IRenderedObject
+		{
+			return _strand as IRenderedObject;
+		}
+		
+		public function get stdDeviation():Number
+		{
+			return _stdDeviation;
+		}
+
+		public function set stdDeviation(value:Number):void
+		{
+			_stdDeviation = value;
+		}
+
+		public function get dx():Number
+		{
+			return _dx;
+		}
+
+		public function set dx(value:Number):void
+		{
+			_dx = value;
+		}
+
+		public function get dy():Number
+		{
+			return _dy;
+		}
+
+		public function set dy(value:Number):void
+		{
+			_dy = value;
+		}
+
+	}
+}
+