| <?xml version="1.0" encoding="utf-8"?> |
| <!-- |
| * |
| * The MIT License |
| * |
| * Copyright (c) 2008 |
| * United Nations Office at Geneva |
| * Center for Advanced Visual Analytics |
| * http://cava.unog.ch |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| * |
| --> |
| <mx:ComboBoxxmlns:mx="http://www.adobe.com/2006/mxml" |
| height="20" |
| width="95%" |
| color="#CCCCCC" |
| prompt="Select layout algorithm." |
| toolTip="Some layouters may not be fully stable." |
| initialize="initData()" |
| change="changeLayouter()"> |
| |
| <mx:ArrayCollectionid="layouts"> |
| <mx:String>---Radial---</mx:String> |
| <mx:String>ConcentricRadial</mx:String> |
| <mx:String>ParentCenteredRadial</mx:String> |
| <mx:String>SingleCycleCircle</mx:String> |
| <mx:String>Hyperbolic</mx:String> |
| <mx:String>---Tree---</mx:String> |
| <mx:String>Hierarchical</mx:String> |
| <mx:String>---Physics---</mx:String> |
| <mx:String>ForceDirected</mx:String> |
| <mx:String>ISOM</mx:String> |
| <mx:String>---Coordinates---</mx:String> |
| <mx:String>DirectPlacement</mx:String> |
| <mx:String>---Experimental---</mx:String> |
| <mx:String>Phyllotactic</mx:String> |
| </mx:ArrayCollection> |
| |
| <mx:Script> |
| <![CDATA[ |
| import mx.utils.ObjectUtil; |
| import org.un.cava.birdeye.ravis.utils.LogUtil; |
| import org.un.cava.birdeye.ravis.utils.events.VGraphEvent; |
| import org.un.cava.birdeye.ravis.graphLayout.visual.VisualGraph; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.ILayoutAlgorithm; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.CircularLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.ConcentricRadialLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.DirectPlacementLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.ForceDirectedLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.HierarchicalLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.Hyperbolic2DLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.ISOMLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.ParentCenteredRadialLayouter; |
| import org.un.cava.birdeye.ravis.graphLayout.layout.PhylloTreeLayouter; |
| |
| private static const _LOG:String = "components.ui.controls.layouterControls.LayoutSelector"; |
| private var _vgraph:VisualGraph; |
| |
| /** |
| * Provides access to the registered vgraph object. |
| * */ |
| public function set vgraph(v:VisualGraph):void { |
| _vgraph = v; |
| registerListeners(); |
| } |
| |
| |
| /** |
| * @private |
| * */ |
| public function get vgraph():VisualGraph { |
| return _vgraph; |
| } |
| |
| /** |
| * When enabling or disabling this component, we also |
| * perform some specific tasks. |
| * Attention do completely disable interaction |
| * there is also the mouseEnabled property. |
| * |
| * @inheritDoc |
| * */ |
| override public function set enabled(e:Boolean):void { |
| if(e == true) { |
| this.setStyle("color",0x000000); |
| this.alpha=1; |
| } else { |
| this.setStyle("color",0xCCCCCC); |
| this.alpha=0.3; |
| } |
| /* call superclass (ComboBox) */ |
| super.enabled = e; |
| } |
| |
| /** |
| * Set the selected Layouter. |
| * */ |
| public function changeLayouter():void { |
| /* check if we have a vgraph at all */ |
| if(_vgraph == null) { |
| LogUtil.warn(_LOG, "Cannot change Layouter without vgraph."); |
| return; |
| } |
| setLayouter(); |
| _vgraph.draw(); // run the layout |
| } |
| |
| /** |
| * Set/Activate the layouter set in the selector. |
| * */ |
| public function setLayouter():void { |
| |
| var layouter:ILayoutAlgorithm; |
| var layouterName:String = (this.selectedItem as String); |
| |
| /* check if we have a vgraph at all */ |
| if(_vgraph == null) { |
| LogUtil.warn(_LOG, "Cannot change Layouter without vgraph."); |
| return; |
| } |
| |
| /* kill off animation in old layouter if present */ |
| if(_vgraph.layouter != null) { |
| _vgraph.layouter.resetAll(); |
| /* remove also existing references thus |
| * destroying the object (maybe this is not needed?) */ |
| _vgraph.layouter = null; |
| } |
| |
| /* now choose the selected layouter */ |
| switch(layouterName) { |
| case "ConcentricRadial": |
| layouter = new ConcentricRadialLayouter(_vgraph); |
| break; |
| case "ParentCenteredRadial": |
| layouter = new ParentCenteredRadialLayouter(_vgraph); |
| break; |
| case "SingleCycleCircle": |
| layouter = new CircularLayouter(_vgraph); |
| |
| /* set the hyperbolic edge renderer type * |
| _vgraph.edgeRenderer = new CircularEdgeRenderer(); |
| _vgraph.scrollBackgroundInDrag = false; |
| _vgraph.moveNodeInDrag = false; |
| absoluteScaling = true; |
| updateScale(); |
| */ |
| break; |
| case "Hyperbolic": |
| layouter = new Hyperbolic2DLayouter(_vgraph); |
| |
| /* set some layouter specific defaults: |
| _vgraph.edgeRenderer = new HyperbolicEdgeRenderer((layouter as Hyperbolic2DLayouter).projector); |
| _vgraph.scrollBackgroundInDrag = false; |
| _vgraph.moveNodeInDrag = false; |
| absoluteScaling = false; |
| */ |
| break; |
| case "Hierarchical": |
| layouter = new HierarchicalLayouter(_vgraph); |
| break; |
| case "ForceDirected": |
| layouter = new ForceDirectedLayouter(_vgraph); |
| break; |
| case "ISOM": |
| layouter = new ISOMLayouter(_vgraph); |
| break; |
| case "DirectPlacement": |
| layouter = new DirectPlacementLayouter(_vgraph); |
| /* set some layouter specific values, i.e. create a control |
| * for these first, also they could be prepopulated from |
| * XML data |
| (layouter as DirectPlacementLayouter).relativeHeight = 400; |
| (layouter as DirectPlacementLayouter).relativeWidth = 400; |
| */ |
| /* |
| /* set the orthogonal edge renderer type * |
| _vgraph.edgeRenderer = new OrthogonalEdgeRenderer(); |
| _vgraph.scrollBackgroundInDrag = true; |
| _vgraph.moveNodeInDrag = true; |
| absoluteScaling = true; |
| updateScale(); |
| */ |
| break; |
| case "Phyllotactic": |
| layouter = new PhylloTreeLayouter(_vgraph); |
| break; |
| default: |
| LogUtil.warn(_LOG, "Illegal Layouter selected, defaulting to ConcentricRadial"+ |
| layouterName); |
| layouter = new ConcentricRadialLayouter(_vgraph); |
| break; |
| } |
| _vgraph.layouter = layouter; |
| } |
| |
| /** |
| * Refresh the selector if an external event changes the layouter. |
| * */ |
| public function refreshSelector(e:VGraphEvent = null):void { |
| |
| var layouterClassName:String; |
| var layouterName:String; |
| |
| /* check if we have a vgraph/layouter at all */ |
| if(_vgraph == null || _vgraph.layouter == null) { |
| LogUtil.warn(_LOG, "Cannot refresh the LayoutSelector without vgraph or Layouter."); |
| return; |
| } |
| |
| layouterClassName = ObjectUtil.getClassInfo(_vgraph.layouter).name; |
| layouterClassName = layouterClassName.replace(/org.un.cava.birdeye.ravis.graphLayout.layout::/,""); |
| |
| /* now choose the selected layouter */ |
| switch(layouterClassName) { |
| case "ConcentricRadialLayouter": |
| layouterName = "ConcentricRadial"; |
| break; |
| case "ParentCenteredRadialLayouter": |
| layouterName = "ParentCenteredRadial"; |
| break; |
| case "CircularLayouter": |
| layouterName = "SingleCycleCircle"; |
| break; |
| case "Hyperbolic2DLayouter": |
| layouterName = "Hyperbolic"; |
| break; |
| case "HierarchicalLayouter": |
| layouterName = "Hierarchical"; |
| break; |
| case "ForceDirectedLayouter": |
| layouterName = "ForceDirected"; |
| break; |
| case "ISOMLayouter": |
| layouterName = "ISOM"; |
| break; |
| case "DirectPlacementLayouter": |
| layouterName = "DirectPlacement"; |
| break; |
| case "PhylloTreeLayouter": |
| layouterName = "Phyllotactic"; |
| break; |
| default: |
| layouterName = "Unknown"; |
| LogUtil.warn(_LOG, "Unknown Layouter found:"+layouterClassName); |
| break; |
| } |
| /* make the selection */ |
| |
| /* XXX THIS MAY CAUSE A LOOP POSSIBLY */ |
| this.selectedItem = layouterName; |
| } |
| |
| /** |
| * initialise the selection data. |
| * It is a bit unclear, why this seems to be necessary. |
| * */ |
| private function initData():void { |
| this.dataProvider = layouts; |
| } |
| |
| /** |
| * Adds the listeners to update on changes in the VGraph |
| * */ |
| private function registerListeners():void { |
| _vgraph.addEventListener(VGraphEvent.LAYOUTER_CHANGED,refreshSelector); |
| } |
| ]]> |
| </mx:Script> |
| </mx:ComboBox> |
