dev/org.simantics.proconf.processeditor/src/fi/vtt/simantics/processeditor/gizmo/PositionSelectionGizmo.java

   1 package fi.vtt.simantics.processeditor.gizmo;\r
   2 \r
   3 import java.net.URL;\r
   4 import java.util.ArrayList;\r
   5 import java.util.List;\r
   6 \r
   7 import javax.vecmath.Point3d;\r
   8 \r
   9 import org.eclipse.core.runtime.FileLocator;\r
  10 import org.eclipse.core.runtime.Path;\r
  11 import org.simantics.proconf.g3d.base.ThreeDimensionalEditorBase;\r
  12 import org.simantics.proconf.g3d.base.VecmathJmeTools;\r
  13 import org.simantics.proconf.g3d.gizmo.Gizmo;\r
  14 import org.simantics.utils.datastructures.Pair;\r
  15 \r
  16 import com.jme.bounding.BoundingSphere;\r
  17 import com.jme.image.Image;\r
  18 import com.jme.image.Texture;\r
  19 import com.jme.math.Vector3f;\r
  20 import com.jme.renderer.Renderer;\r
  21 import com.jme.scene.BillboardNode;\r
  22 import com.jme.scene.Node;\r
  23 import com.jme.scene.shape.Quad;\r
  24 import com.jme.scene.state.AlphaState;\r
  25 import com.jme.scene.state.LightState;\r
  26 import com.jme.scene.state.TextureState;\r
  27 import com.jme.scene.state.ZBufferState;\r
  28 import com.jme.util.TextureManager;\r
  29 \r
  30 import fi.vtt.simantics.processeditor.Activator;\r
  31 import fi.vtt.simantics.processeditor.actions.PositionType;\r
  32 \r
  33 /**\r
  34  * Gizmo that allows user to selected insertion point of a component\r
  35  * TODO : for splits we want use line between component ends to\r
  36  *        position the button, instead of its center point.   \r
  37  * \r
  38  * @author Marko Luukkainen <Marko.Luukkainen@vtt.fi>\r
  39  *\r
  40  */\r
  41 public class PositionSelectionGizmo implements Gizmo {\r
  42 \r
  43         private static String PICK_PREFIX = "insert";\r
  44         private static String SPLIT_TEXTURE = "icons/middle.png";\r
  45         private static String END_TEXTURE = "icons/plus.png";\r
  46         private static String PORT_TEXTURE = END_TEXTURE;\r
  47 \r
  48         private ThreeDimensionalEditorBase parent;\r
  49         \r
  50         private boolean changed = false;\r
  51         private int selected = -1;\r
  52         private boolean useDistanceResize = true;\r
  53         \r
  54         private List<BillboardNode> nodes;\r
  55         private List<AlphaState> alphaStates;\r
  56         private Node rootNode;\r
  57         \r
  58         public PositionSelectionGizmo(ThreeDimensionalEditorBase parent, List<Pair<Point3d, PositionType>> positions) {\r
  59                 this.parent = parent;\r
  60                 rootNode = new Node();\r
  61                 rootNode.setCullMode(Node.CULL_NEVER);\r
  62                 rootNode.setRenderQueueMode(Renderer.QUEUE_TRANSPARENT);\r
  63                 rootNode.setLightCombineMode(LightState.OFF);\r
  64                 int i = 0;\r
  65                 nodes = new ArrayList<BillboardNode>();\r
  66                 alphaStates = new ArrayList<AlphaState>();\r
  67                 // create a button (billboard) for each insertion position\r
  68 \r
  69                 ZBufferState zs = parent.getRenderingComponent().getDisplaySystem().getRenderer().createZBufferState();\r
  70                 zs.setFunction(ZBufferState.CF_ALWAYS);\r
  71                 \r
  72                 for (Pair<Point3d, PositionType> p : positions) {\r
  73                         BillboardNode node = new BillboardNode("");\r
  74                         nodes.add(node);\r
  75                         Quad quad = new Quad(PICK_PREFIX + i,1.f,1.f);\r
  76                         \r
  77                         TextureState ts = parent.getRenderingComponent().getDisplaySystem().getRenderer().createTextureState();\r
  78                         String filename = "";\r
  79                         switch (p.second) {\r
  80                         case NEXT:\r
  81                         case PREVIOUS:\r
  82                                 filename = END_TEXTURE;\r
  83                                 break;\r
  84                         case SPLIT:\r
  85                                 filename = SPLIT_TEXTURE;\r
  86                                 break;\r
  87                         case PORT:\r
  88                                 filename = PORT_TEXTURE;\r
  89                         }\r
  90                         URL url = FileLocator.find(Activator.getDefault().getBundle(), new Path(filename),null);\r
  91                         Image image = TextureManager.loadImage(url, true);\r
  92                         Texture texture = new Texture();\r
  93                         texture.setImage(image);\r
  94                         texture.setFilter(Texture.FM_LINEAR);\r
  95                         ts.setTexture(texture);\r
  96                         quad.setRenderState(ts);\r
  97                         \r
  98                         AlphaState as = parent.getRenderingComponent().getDisplaySystem().getRenderer().createAlphaState();\r
  99                         as.setSrcFunction(AlphaState.SB_SRC_ALPHA);\r
 100                         as.setDstFunction(AlphaState.DB_ONE_MINUS_SRC_ALPHA);\r
 101                         as.setBlendEnabled(true);\r
 102                         alphaStates.add(as);\r
 103                         quad.setRenderState(as);\r
 104                         quad.setRenderState(zs);\r
 105                         \r
 106                         node.attachChild(quad);\r
 107                         node.setLocalTranslation(VecmathJmeTools.get(p.first));\r
 108                         quad.setModelBound(new BoundingSphere(0.5f,new Vector3f()));\r
 109                         quad.updateModelBound();\r
 110                         rootNode.attachChild(node);\r
 111                         \r
 112                         i++;\r
 113                 }\r
 114         }\r
 115         \r
 116         \r
 117         @Override\r
 118         public Node getNode() {\r
 119                 return rootNode;\r
 120         }\r
 121         \r
 122         @Override\r
 123         public String getPickPrefix() {\r
 124                 return PICK_PREFIX;\r
 125         }\r
 126         \r
 127         @Override\r
 128         public boolean isChanged() {\r
 129                 return changed;\r
 130         }\r
 131         \r
 132         @Override\r
 133         public void setChanged(boolean b) {\r
 134                 changed = b;\r
 135         }\r
 136         \r
 137         @Override\r
 138         public void setSelected(String name) {\r
 139                 if (name == null) {\r
 140                         setSelected(-1);\r
 141                         return;\r
 142                 }\r
 143                 assert(name.startsWith(PICK_PREFIX));\r
 144                 setSelected(Integer.parseInt(name.substring(PICK_PREFIX.length())));\r
 145         }\r
 146         \r
 147         private void setSelected(int i) {\r
 148                 if (selected == i)\r
 149                         return;\r
 150                 if (selected != -1) {\r
 151                         alphaStates.get(selected).setDstFunction(AlphaState.DB_ONE_MINUS_SRC_ALPHA);\r
 152                         nodes.get(selected).getChild(0).setRenderState(alphaStates.get(selected));\r
 153                 }\r
 154                 selected = i;\r
 155                 if (selected != -1) {\r
 156                         alphaStates.get(selected).setDstFunction(AlphaState.DB_ONE);\r
 157                         nodes.get(selected).getChild(0).setRenderState(alphaStates.get(selected));\r
 158                 }\r
 159                 parent.setViewChanged(true);\r
 160         }\r
 161         \r
 162         public int getSelected() {\r
 163                 return selected;\r
 164         }\r
 165         \r
 166         public void update() {\r
 167                 if (useDistanceResize) {\r
 168                         Vector3f v = VecmathJmeTools.get(parent.getCamera().getCameraPos());\r
 169                         for (BillboardNode n : nodes) {\r
 170                                 float length = v.subtract(n.getWorldTranslation()).length();\r
 171                                 n.setLocalScale(length * 0.06f);\r
 172                         }\r
 173                 }\r
 174         }\r
 175 \r
 176         \r
 177 }\r