dev/org.simantics.proconf.processeditor/src/fi/vtt/simantics/processeditor/monitors/BillboardMonitor.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.\r
   3  * All rights reserved. This program and the accompanying materials\r
   4  * are made available under the terms of the Eclipse Public License v1.0\r
   5  * which accompanies this distribution, and is available at\r
   6  * http://www.eclipse.org/legal/epl-v10.html\r
   7  *\r
   8  * Contributors:\r
   9  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  10  *******************************************************************************/\r
  11 package fi.vtt.simantics.processeditor.monitors;\r
  12 \r
  13 import java.awt.Color;\r
  14 import java.util.ArrayList;\r
  15 \r
  16 import javax.vecmath.Point3d;\r
  17 import javax.vecmath.Vector3d;\r
  18 \r
  19 import org.simantics.db.Graph;\r
  20 import org.simantics.proconf.g3d.base.G3DTools;\r
  21 import org.simantics.proconf.g3d.base.ThreeDimensionalEditorBase;\r
  22 import org.simantics.proconf.g3d.base.VecmathJmeTools;\r
  23 import org.simantics.proconf.g3d.scenegraph.IGraphicsNode;\r
  24 import org.simantics.proconf.g3d.stubs.G3DNode;\r
  25 \r
  26 import com.jme.image.Texture;\r
  27 import com.jme.math.Vector3f;\r
  28 import com.jme.renderer.ColorRGBA;\r
  29 import com.jme.renderer.Renderer;\r
  30 import com.jme.scene.BillboardNode;\r
  31 import com.jme.scene.Node;\r
  32 import com.jme.scene.shape.Quad;\r
  33 import com.jme.scene.state.AlphaState;\r
  34 import com.jme.scene.state.MaterialState;\r
  35 import com.jme.scene.state.RenderState;\r
  36 import com.jme.scene.state.TextureState;\r
  37 import com.jme.scene.state.ZBufferState;\r
  38 import com.jmex.awt.swingui.ImageGraphics;\r
  39 \r
  40 \r
  41 import fi.vtt.simantics.processeditor.ProcessResource;\r
  42 import fi.vtt.simantics.processeditor.stubs.InlineComponent;\r
  43 \r
  44 \r
  45 \r
  46 /**\r
  47  * A monitor that uses billboard to show it's information. \r
  48  * \r
  49  * @author Marko Luukkainen\r
  50  *\r
  51  */\r
  52 //TODO : should it be variable length / fixed length inline component instead of Straight\r
  53 \r
  54 public class BillboardMonitor implements Monitor{\r
  55         private enum Type{POSITION,PIPE};\r
  56         private Type type;\r
  57         private ThreeDimensionalEditorBase editor; \r
  58         private BillboardNode monitorNode = null;\r
  59         private int monitorSize = 128;\r
  60     private ImageGraphics graphics = ImageGraphics.createInstance(monitorSize, monitorSize, 0);\r
  61     private Node currentParent = null;\r
  62     private IGraphicsNode node = null;\r
  63     private boolean useDistanceResize = true;\r
  64     \r
  65     Point3d start;\r
  66     Point3d end;\r
  67     Point3d middle;\r
  68     \r
  69     private MonitorTextProvider provider = new ObjectPropertyProvider();\r
  70         \r
  71     \r
  72         public BillboardMonitor(ThreeDimensionalEditorBase editor) {\r
  73                 this.editor = editor;\r
  74                 monitorNode = new BillboardNode("");\r
  75                 monitorNode.setRenderQueueMode(Renderer.QUEUE_TRANSPARENT);\r
  76                 ZBufferState zs = editor.getRenderingComponent()\r
  77                                 .getDisplaySystem().getRenderer().createZBufferState();\r
  78                 zs.setEnabled(true);\r
  79                 zs.setFunction(ZBufferState.CF_ALWAYS);\r
  80                 monitorNode.setRenderState(zs);\r
  81                 Quad quad = new Quad("");\r
  82                 quad.initialize(3.f, 3.f);\r
  83                 monitorNode.attachChild(quad);\r
  84                 // SWTImageGraphics graphics =\r
  85                 // SWTImageGraphics.createInstance(64,64, 0);\r
  86 \r
  87                 graphics.clearRect(0, 0, monitorSize, monitorSize);\r
  88 \r
  89                 // graphics.setFont(new Font("Arial",Font.PLAIN,30));\r
  90                 // graphics.setColor(Display.getDefault().getSystemColor(SWT.COLOR_GREEN));\r
  91                 graphics.setColor(new Color(0, 255, 0, 255));\r
  92                 graphics.drawString("Monitor", 0, 32);\r
  93                 \r
  94                 TextureState ts = editor.getRenderingComponent().getDisplaySystem().getRenderer().createTextureState();\r
  95                 Texture texture = new Texture();\r
  96                 texture.setApply(Texture.AM_MODULATE);\r
  97                 // texture.setBlendColor(new ColorRGBA(1, 1, 1, 1));\r
  98                 texture.setFilter(Texture.MM_LINEAR);\r
  99                 texture.setMipmapState(Texture.FM_LINEAR);\r
 100                 texture.setImage(graphics.getImage());\r
 101                 graphics.update();\r
 102                 AlphaState as = editor.getRenderingComponent().getDisplaySystem()\r
 103                                 .getRenderer().createAlphaState();\r
 104                 as.setBlendEnabled(true);\r
 105                 as.setSrcFunction(AlphaState.SB_SRC_ALPHA);\r
 106                 as.setDstFunction(AlphaState.DB_ONE_MINUS_SRC_ALPHA);\r
 107         as.setTestEnabled(true);\r
 108         as.setTestFunction(AlphaState.TF_GREATER);\r
 109                 ts.setTexture(texture);\r
 110                 MaterialState ms = editor.getRenderingComponent().getDisplaySystem().getRenderer().createMaterialState();\r
 111                 ms.setEmissive(new ColorRGBA(1.f, 1.f, 1.f, 0.f));\r
 112                 monitorNode.setRenderState(ts);\r
 113                 monitorNode.setRenderState(as);\r
 114                 monitorNode.setRenderState(ms);\r
 115                 graphics.drawLine(0, 33, monitorSize-1, 33);\r
 116                 graphics.update();\r
 117         }\r
 118         \r
 119         public boolean acceptNode(Graph graph, IGraphicsNode node) {\r
 120                 Node selectedParent = node.getGroup();\r
 121                 if (currentParent == null || !selectedParent.equals(currentParent)) {\r
 122                         if (node.getG3DNode(graph).getLocalPosition() != null) {\r
 123                                 return true;\r
 124                         } else if (node.getG3DNode(graph).isInstanceOf(ProcessResource.plant3Dresource.VariableLengthInlineComponent)) {\r
 125                                 \r
 126                                 return true;\r
 127                         }\r
 128                 }\r
 129 \r
 130                 return false;\r
 131         }\r
 132         \r
 133         public void setNode(Graph graph, IGraphicsNode node) {\r
 134                 G3DNode n = node.getG3DNode(graph);\r
 135                 if (n.getLocalPosition() != null) {\r
 136                         type = Type.POSITION;\r
 137                         monitorNode.setLocalTranslation(new Vector3f(0.f,0.f,0.f));\r
 138                 } else if (n.isInstanceOf(ProcessResource.plant3Dresource.VariableLengthInlineComponent)) {\r
 139                         type = Type.PIPE;\r
 140                         InlineComponent ic = new InlineComponent(n);\r
 141                         start = G3DTools.getPoint(ic.getControlPoint().getPrevious().getLocalPosition());\r
 142                         end = G3DTools.getPoint(ic.getControlPoint().getNext().getLocalPosition());\r
 143                         Vector3d dir = new Vector3d(end);\r
 144                         dir.sub(start);\r
 145                         dir.scale(0.5);\r
 146                         middle = new Point3d(start);\r
 147                         middle.add(dir);\r
 148                         monitorNode.setLocalTranslation(VecmathJmeTools.get(middle));\r
 149                 } else {\r
 150                         return;\r
 151                 }\r
 152                 Node selectedParent = node.getGroup();\r
 153                 this.node = node;\r
 154                 currentParent = selectedParent;\r
 155                 monitorNode.removeFromParent();\r
 156                 currentParent.attachChild(monitorNode);\r
 157 \r
 158                 provider.setSource(n);\r
 159                 update(graph);\r
 160         }\r
 161         \r
 162         public IGraphicsNode getNode() {\r
 163                 return node;\r
 164         }\r
 165         \r
 166         public void update() {\r
 167                 if (useDistanceResize) {\r
 168                         Vector3f v = VecmathJmeTools.get(editor.getCamera().getCameraPos());\r
 169                         v.subtractLocal(monitorNode.getWorldTranslation());\r
 170                         float length = v.length();\r
 171                         monitorNode.setLocalScale(length * 0.06f);\r
 172                 }\r
 173         }\r
 174         \r
 175         \r
 176         public void update(Graph graph) {\r
 177                 ArrayList<String> titles = provider.getTexts(graph);\r
 178                 graphics.clearRect(0, 0, monitorSize, monitorSize);\r
 179                 int y = 16;\r
 180                 for (String s : titles) {\r
 181                         graphics.drawString(s, 0, y);\r
 182                         y += 16;\r
 183                 }\r
 184 \r
 185                 TextureState ts = (TextureState) monitorNode\r
 186                                 .getRenderState(RenderState.RS_TEXTURE);\r
 187                 ts.deleteAll(); // FIXME : texture won't be updated without this\r
 188                 graphics.update();\r
 189                 update();\r
 190         }\r
 191         \r
 192         public void remove() {\r
 193                 monitorNode.removeFromParent();\r
 194                 node = null;\r
 195         }\r
 196 \r
 197         /**\r
 198          * if true, monitors size is independent of distance to camera. Else monitor's size changes when camera is moved.\r
 199          * @return\r
 200          */\r
 201         public boolean isUseDistanceResize() {\r
 202                 return useDistanceResize;\r
 203         }\r
 204 \r
 205         public void setUseDistanceResize(boolean useDistanceResize) {\r
 206                 this.useDistanceResize = useDistanceResize;\r
 207                 if (!useDistanceResize) {\r
 208                         monitorNode.setLocalScale(1.f);\r
 209                 }\r
 210         }\r
 211         \r
 212         public void setTextProvider(MonitorTextProvider provider) {\r
 213                 this.provider = provider;\r
 214         }\r
 215 \r
 216 }\r