[qooxdoo-contrib-commit] SF.net SVN: qooxdoo-contrib:[21081] trunk/qooxdoo-contrib/SVG/trunk/source/ class/svg/path

[<me...@us...>]

Revision: 21081
          http://qooxdoo-contrib.svn.sourceforge.net/qooxdoo-contrib/?rev=21081&view=rev
Author:   mevers
Date:     2011-04-28 13:12:18 +0000 (Thu, 28 Apr 2011)

Log Message:
-----------
Added new MPathElement mixin to the path.Path object so it implements
"getTotalLength", "getPointAtLength", etc...

Modified Paths:
--------------
    trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/Path.js

Added Paths:
-----------
    trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/dom/
    trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/dom/MPathElement.js

Modified: trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/Path.js
===================================================================
--- trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/Path.js	2011-04-28 12:56:43 UTC (rev 21080)
+++ trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/Path.js	2011-04-28 13:12:18 UTC (rev 21081)
@@ -22,23 +22,24 @@
 qx.Class.define("svg.path.Path",
 {
   extend : svg.core.Element,
-  
+
   include : [ svg.paint.MFillProperties,
               svg.paint.MStrokeProperties,
-              svg.paint.MMarkerProperties ],
+              svg.paint.MMarkerProperties,
+              svg.path.dom.MPathElement],
 
   construct : function() {
     this.base(arguments, "path");
   },
-  
+
   properties :
   {
     /**
      * The definition of the outline of a shape.
-     * 
+     *
      * You can provide an instance of {@link PathData} (recommended!),
-     * or a string with hand-written path data. 
-     * 
+     * or a string with hand-written path data.
+     *
      * More info:
      * <ul>
      *   <li>http://www.w3.org/TR/SVG/paths.html#PathData</li>
@@ -51,12 +52,12 @@
       check: "value instanceof svg.path.PathData || typeof(value) == 'string'",
       event: "changePathData"
     },
-    
+
     /**
      * The author's computation of the total length of the path, in user units.
      * This value is used to calibrate the user agent's own distance-along-a-path
      * calculations with that of the author.
-     * 
+     *
      * More info:
      * <ul>
      *   <li>http://www.w3.org/TR/SVG/paths.html#PathLengthAttribute</li>
@@ -73,7 +74,7 @@
 
   members :
   {
-    
+
     //applies path data
     _applyPathData: function(value, old) {
       if (null === value) {
@@ -86,24 +87,24 @@
       else {
         this.setAttribute("d", value);
       }
-      
+
       if (old instanceof svg.path.PathData) {
         old.removeListener("change", this.__changeListener, this);
       }
     },
-    
+
     //applies path length
     _applyPathLength: function(value, old) {
-      if (null == value) {
+      if (null === value) {
         this.removeAttribute("pathLength");
       } else {
         this.setAttribute("pathLength", value);
       }
     },
-    
+
     /**
      * Updates the "d" attribute when PathData has changed.
-     * 
+     *
      * @param ev {qx.event.Data}
      *   data event fired by PathData
      */

Added: trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/dom/MPathElement.js
===================================================================
--- trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/dom/MPathElement.js	                        (rev 0)
+++ trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/dom/MPathElement.js	2011-04-28 13:12:18 UTC (rev 21081)
@@ -0,0 +1,91 @@
+/* ************************************************************************
+
+   Copyright:
+     2010-2011  Martijn Evers
+
+   License:
+     LGPL: http://www.gnu.org/licenses/lgpl.html
+     EPL: http://www.eclipse.org/org/documents/epl-v10.php
+     See the LICENSE file in the project's top-level directory for details.
+
+   Authors:
+     * Martijn Evers (mevers)
+
+************************************************************************ */
+
+/**
+ * Implements the SVGPathElement interface.
+ *
+ * More info:
+ * <ul>
+ *   <li>http://www.w3.org/TR/SVG/paths.html#InterfaceSVGPathElement</li>
+ * </ul>
+ */
+qx.Mixin.define("svg.path.dom.MPathElement", {
+
+  members :
+  {
+    /**
+     * Returns the user agent's computed value for the total length of the path
+     * using the user agent's distance-along-a-path algorithm, as a distance
+     * in the current user coordinate system.
+     *
+     * This is the implementation of:
+     * <ul>
+     *   <li>http://www.w3.org/TR/SVG/paths.html#__svg__SVGPathElement__getTotalLength</li>
+     * </ul>
+     *
+     * @return {Float} The total length of the path.
+     */
+    getTotalLength : function() {
+      if ((qx.core.Environment.get("qx.debug"))) {
+        svg.core.Assert.assertElementInDocTree(this);
+      }
+      return this.getDomElement().getTotalLength();
+    },
+
+    /**
+     * Returns the (x,y) coordinate in user space which is distance units along the
+     * path, utilizing the user agent's distance-along-a-path algorithm.
+     *
+     * This is the implementation of:
+     * <ul>
+     *   <li>http://www.w3.org/TR/SVG/paths.html#__svg__SVGPathElement__getPointAtLength</li>
+     * </ul>
+     *
+     * @param distance {Float}
+     *   The distance along the path, relative to the start of
+     *   the path, as a distance in the current user coordinate system.
+     *
+     * @return {SVGPoint} The returned point in user space.
+     */
+    getPointAtLength : function(distance) {
+      if ((qx.core.Environment.get("qx.debug"))) {
+        svg.core.Assert.assertElementInDocTree(this);
+      }
+      return this.getDomElement().getPointAtLength(distance);
+    },
+
+    /**
+     * Returns the index into pathSegList which is distance units along the
+     * path, utilizing the user agent's distance-along-a-path algorithm.
+     *
+     * This is the implementation of:
+     * <ul>
+     *   <li>http://www.w3.org/TR/SVG/paths.html#__svg__SVGPathElement__getPathSegAtLength</li>
+     * </ul>
+     *
+     * @param distance {Float}
+     *   The distance along the path, relative to the start of
+     *   the path, as a distance in the current user coordinate system.
+     *
+     * @return {Double} The index of the path segment, where the first path segment is number 0.
+     */
+    getPathSegAtLength : function(distance) {
+      if ((qx.core.Environment.get("qx.debug"))) {
+        svg.core.Assert.assertElementInDocTree(this);
+      }
+      return this.getDomElement().getPathSegAtLength(distance);
+    }
+  }
+});
\ No newline at end of file


Property changes on: trunk/qooxdoo-contrib/SVG/trunk/source/class/svg/path/dom/MPathElement.js
___________________________________________________________________
Added: svn:mime-type
   + text/plain


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