srcjar/fr/orsay/lri/varna/applications/templateEditor/MouseControler.java

   1 package fr.orsay.lri.varna.applications.templateEditor;
   2
   3 import java.awt.Point;
   4 import java.awt.event.MouseEvent;
   5 import java.awt.event.MouseListener;
   6 import java.awt.event.MouseMotionListener;
   7 import java.awt.event.MouseWheelEvent;
   8 import java.awt.event.MouseWheelListener;
   9 import java.awt.geom.Point2D;
  10
  11
  12
  13 public class MouseControler implements MouseListener, MouseMotionListener, MouseWheelListener {
  14
  15         private int _granularity = 8;
  16         private final int HYSTERESIS_DISTANCE = 10;
  17         TemplatePanel _sp;
  18         GraphicalTemplateElement _elem;
  19         TemplateEditorPanelUI _ui;
  20         private GraphicalTemplateElement.RelativePosition _currentMode = Helix.RelativePosition.RP_OUTER;
  21         private boolean movingView = false;
  22         private Point2D.Double _clickedPos = new Point2D.Double();
  23         private Point _clickedPosScreen = new Point();
  24
  25         public MouseControler(TemplatePanel sp, TemplateEditorPanelUI ui)
  26         {
  27                 _sp = sp;
  28                 _elem = null;
  29                 _ui = ui;
  30         }
  31
  32         public void mouseWheelMoved(MouseWheelEvent e) {
  33                 if (e.getWheelRotation() == -1) {
  34                         _sp.zoomIn();
  35                 }
  36                 else {
  37                         _sp.zoomOut();
  38                 }
  39                 e.consume();
  40         }
  41
  42
  43         public void mouseClicked(MouseEvent arg0) {
  44         }
  45
  46         public void mouseEntered(MouseEvent arg0) {
  47                 // TODO Auto-generated method stub
  48
  49         }
  50
  51         public void mouseExited(MouseEvent arg0) {
  52                 // TODO Auto-generated method stub
  53
  54         }
  55
  56
  57
  58         /**
  59          * Get mouse position in logical coordinates, ie. those used in the template XML file.
  60          * It differs from the screen coordinates relative to panel because of the scaling factor.
  61          */
  62         public Point2D.Double getLogicalMouseCoords(MouseEvent event) {
  63                 return new Point2D.Double(event.getX()/_sp.getScaleFactor(), event.getY()/_sp.getScaleFactor());
  64         }
  65
  66         public void mousePressed(MouseEvent arg0) {
  67                 movingView = false;
  68                 _clickedPos = new Point2D.Double(arg0.getX(), arg0.getY());
  69                 _clickedPosScreen.x = arg0.getXOnScreen();
  70                 _clickedPosScreen.y = arg0.getYOnScreen();
  71
  72                 // middle-click
  73                 if (arg0.getButton() == MouseEvent.BUTTON2) {
  74                         movingView = true;
  75
  76                 } else {
  77
  78                         Point2D.Double logicalMousePos = getLogicalMouseCoords(arg0);
  79                         GraphicalTemplateElement elem = _sp.getElementAt(logicalMousePos.getX(), logicalMousePos.getY());
  80                         _sp.Unselect();
  81
  82                         if (elem==null)
  83                         {
  84                                 if (arg0.getButton()==MouseEvent.BUTTON1
  85                                                 && _ui.getSelectedTool() == TemplateEditorPanelUI.Tool.CREATE_HELIX)
  86                                 {
  87                                         _currentMode = Helix.RelativePosition.RP_EDIT_START;
  88                                 }
  89                                 else if ((arg0.getButton()==MouseEvent.BUTTON1
  90                                                 && _ui.getSelectedTool() == TemplateEditorPanelUI.Tool.CREATE_UNPAIRED))
  91                                 {
  92                                         // Create a new unpaired region
  93                                         UnpairedRegion n = new UnpairedRegion(logicalMousePos.getX(),logicalMousePos.getY(),_sp.getTemplate());
  94                                         n.setDominantColor(_sp.nextBackgroundColor());
  95                                         _ui.addElementUI(n);
  96                                         _sp.setSelected(n);
  97                                         _sp.repaint();
  98                                         _elem = n;
  99                                         _currentMode = GraphicalTemplateElement.RelativePosition.RP_EDIT_START;
 100                                 }
 101                         }
 102                         else if (arg0.getButton()==MouseEvent.BUTTON1)
 103                         {
 104                                 _currentMode = elem.getRelativePosition(logicalMousePos.getX(), logicalMousePos.getY());
 105                                 _sp.setSelected(elem);
 106                                 _elem = elem;
 107                                 switch (_currentMode)
 108                                 {
 109                                 case RP_EDIT_START:
 110                                 case RP_EDIT_END:
 111                                 case RP_EDIT_TANGENT_5:
 112                                 case RP_EDIT_TANGENT_3:
 113                                         break;
 114                                 case RP_INNER_MOVE:
 115                                         break;
 116                                 case RP_INNER_GENERAL:
 117                                         _currentMode = Helix.RelativePosition.RP_INNER_MOVE;
 118                                         break;
 119                                 case RP_CONNECT_END3:
 120                                 case RP_CONNECT_END5:
 121                                 case RP_CONNECT_START5:
 122                                 case RP_CONNECT_START3:
 123                                 {
 124                                         Couple<GraphicalTemplateElement,GraphicalTemplateElement.RelativePosition> al = _sp.getPartner(elem, _currentMode);
 125                                         boolean isConnected = (al!=null);
 126                                         if (isConnected)
 127                                         {
 128                                                 Connection c = _sp.getConnection(elem, _currentMode);
 129                                                 _ui.removeConnectionUI(c);
 130                                                 GraphicalTemplateElement p1 = c._h1;
 131                                                 GraphicalTemplateElement p2 = c._h2;
 132                                                 boolean p1IsHelix = (p1 instanceof Helix);
 133                                                 boolean p1IsUnpaired = (p1 instanceof UnpairedRegion);
 134                                                 boolean p2IsHelix = (p2 instanceof Helix);
 135                                                 boolean p2IsUnpaired = (p2 instanceof UnpairedRegion);
 136                                                 boolean p1StillAttached = (p1 == elem);
 137
 138                                                 if ((p1IsUnpaired && p2IsHelix))
 139                                                 {
 140                                                         p1StillAttached = false;
 141                                                 }
 142                                                 if (p1StillAttached)
 143                                                 {
 144                                                         _elem = p2;
 145                                                         _currentMode = c._edge2;
 146                                                 }
 147                                                 else if (!p1StillAttached)
 148                                                 {
 149                                                         _elem=p1;
 150                                                         _currentMode = c._edge1;
 151                                                 }
 152
 153                                         }
 154                                         if (_elem instanceof Helix)
 155                                         {
 156                                                 _sp.setPointerPos(new Point2D.Double(logicalMousePos.getX(),logicalMousePos.getY()));
 157                                                 _sp.setSelectedEdge(_currentMode);
 158                                         }
 159                                         _sp.setSelected(_elem);
 160                                 }
 161                                 break;
 162                                 case RP_OUTER:
 163                                         _sp.Unselect();
 164                                         _elem = null;
 165                                 }
 166                                 _sp.repaint();
 167                         }
 168                 }
 169         }
 170
 171         public void mouseReleased(MouseEvent arg0) {
 172                 movingView = false;
 173                 Point2D.Double logicalMousePos = getLogicalMouseCoords(arg0);
 174                 if (_elem!=null)
 175                 {
 176                         switch (_currentMode)
 177                         {
 178                         case RP_EDIT_START:
 179                         case RP_EDIT_END:
 180                         {
 181                                 if (_elem instanceof Helix)
 182                                 {
 183                                         Helix h = (Helix) _elem;
 184                                         if (h.getPos().distance(h.getExtent())<10.0)
 185                                         {
 186                                                 _ui.removeElementUI(_elem);
 187                                                 _sp.Unselect();
 188                                         }
 189                                 }
 190                         }
 191                         break;
 192                         case RP_INNER_MOVE:
 193                                 break;
 194                         case RP_CONNECT_END3:
 195                         case RP_CONNECT_END5:
 196                         case RP_CONNECT_START5:
 197                         case RP_CONNECT_START3:
 198                         {
 199                                 GraphicalTemplateElement t = _sp.getElementAt(logicalMousePos.getX(), logicalMousePos.getY(),_elem);
 200                                 if (t!=null)
 201                                 {
 202                                         GraphicalTemplateElement.RelativePosition edge = t.getClosestEdge(logicalMousePos.getX(), logicalMousePos.getY());
 203                                         _ui.addConnectionUI(_elem,_currentMode,t,edge);
 204                                 }
 205                                 _sp.setSelectedEdge(Helix.RelativePosition.RP_OUTER);
 206                         }
 207                         break;
 208                         }
 209                         _elem = null;
 210                         _sp.rescale();
 211                 }
 212                 _sp.setSelectedEdge(Helix.RelativePosition.RP_OUTER);
 213                 _currentMode = Helix.RelativePosition.RP_OUTER;
 214                 _sp.repaint();
 215         }
 216
 217
 218         private Point2D.Double projectPoint(double x, double y, Point2D.Double ref)
 219         {
 220                 Point2D.Double result = new Point2D.Double();
 221                 double nx = x-ref.x;
 222                 double ny = y-ref.y;
 223                 double tmp = Double.MIN_VALUE;
 224                 for (int i=0;i<this._granularity;i++)
 225                 {
 226                         double angle = 2.0*Math.PI*((double)i/(double)_granularity);
 227                         double dx = Math.cos(angle);
 228                         double dy = Math.sin(angle);
 229                         double norm  = nx*dx+ny*dy;
 230                         //System.out.println(""+angle+" "+norm);
 231                         if (norm > tmp)
 232                         {
 233                                 tmp = norm;
 234                                 result.x = ref.x+dx*norm;
 235                                 result.y = ref.y+dy*norm;
 236                         }
 237                 }
 238                 return result;
 239         }
 240
 241         public void mouseDragged(MouseEvent arg0)
 242         {
 243                 if (movingView) {
 244                         Point trans = new Point(
 245                                         arg0.getXOnScreen() - _clickedPosScreen.x,
 246                                         arg0.getYOnScreen() - _clickedPosScreen.y);
 247                         _sp.translateView(trans);
 248                         _clickedPosScreen.x = arg0.getXOnScreen();
 249                         _clickedPosScreen.y = arg0.getYOnScreen();
 250                 } else {
 251                         Point2D.Double logicalMousePos = getLogicalMouseCoords(arg0);
 252                         if (_elem == null)
 253                         {
 254                                 switch (_currentMode)
 255                                 {
 256                                 case RP_EDIT_START:
 257                                 {
 258                                         if (_clickedPos.distance(arg0.getX(),arg0.getY())>HYSTERESIS_DISTANCE)
 259                                         {
 260                                                 System.out.println("Creating Helix...");
 261                                                 Helix h1 = new Helix(logicalMousePos.getX(),logicalMousePos.getY(),_sp.getTemplate(),_sp.getRNAComponents());
 262                                                 h1.setDominantColor(_sp.nextBackgroundColor());
 263                                                 _ui.addElementUI(h1);
 264                                                 _sp.setSelected(h1);
 265                                                 _sp.repaint();
 266                                                 _elem = h1;
 267                                         }
 268                                 }
 269                                 break;
 270
 271                                 }
 272                         }
 273                         else
 274                         {
 275                                 if (_elem instanceof Helix)
 276                                 {
 277                                         Helix h = (Helix) _elem;
 278                                         switch (_currentMode)
 279                                         {
 280                                         case RP_EDIT_START:
 281                                         {
 282                                                 Point2D.Double d = projectPoint(logicalMousePos.getX(),logicalMousePos.getY(),h.getPos());
 283                                                 _ui.setHelixExtentUI(h, d.x,d.y);
 284                                         }
 285                                         break;
 286                                         case RP_EDIT_END:
 287                                         {
 288                                                 Point2D.Double d = projectPoint( logicalMousePos.getX(),logicalMousePos.getY(),h.getExtent());
 289                                                 _ui.setHelixPosUI(h, d.x,d.y);
 290                                         }
 291                                         break;
 292                                         case RP_INNER_MOVE:
 293                                                 _ui.moveHelixUI(h, logicalMousePos.getX(),logicalMousePos.getY());
 294                                                 break;
 295                                         case RP_CONNECT_END3:
 296                                         case RP_CONNECT_END5:
 297                                         case RP_CONNECT_START5:
 298                                         case RP_CONNECT_START3:
 299                                                 _sp.setPointerPos(new Point2D.Double(logicalMousePos.getX(),logicalMousePos.getY()));
 300                                                 _sp.repaint();
 301                                                 break;
 302                                         }
 303                                 }
 304                                 else if (_elem instanceof UnpairedRegion)
 305                                 {
 306                                         UnpairedRegion ur = (UnpairedRegion) _elem;
 307                                         Point2D.Double p = new Point2D.Double(logicalMousePos.getX(),logicalMousePos.getY());
 308                                         switch (_currentMode)
 309                                         {
 310                                         case RP_EDIT_TANGENT_5:
 311                                         {
 312                                                 _ui.setEdge5TangentUI(ur,logicalMousePos.getX(),logicalMousePos.getY());
 313                                                 _sp.repaint();
 314                                                 break;
 315                                         }
 316                                         case RP_EDIT_TANGENT_3:
 317                                         {
 318                                                 _ui.setEdge3TangentUI(ur,logicalMousePos.getX(),logicalMousePos.getY());
 319                                                 _sp.repaint();
 320                                                 break;
 321                                         }
 322                                         case RP_INNER_MOVE:
 323                                         {
 324                                                 _ui.moveUnpairedUI(ur,logicalMousePos.getX(),logicalMousePos.getY());
 325                                                 _sp.repaint();
 326                                                 break;
 327                                         }
 328                                         case RP_CONNECT_START5:
 329                                                 _ui.setEdge5UI(ur,logicalMousePos.getX(),logicalMousePos.getY());
 330                                                 break;
 331                                         case RP_CONNECT_END3:
 332                                                 _ui.setEdge3UI(ur,logicalMousePos.getX(),logicalMousePos.getY());
 333                                                 break;
 334                                         }
 335                                         _sp.repaint();
 336                                 }
 337                         }
 338                 }
 339         }
 340
 341         public void mouseMoved(MouseEvent arg0) {
 342                 // TODO Auto-generated method stub
 343
 344         }
 345 }