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1 package de.mpg.mpiwg.itgroup.digilib.manipulator.extensions;
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7 import org.eclipse.swt.SWT;
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8 import org.eclipse.swt.events.MouseEvent;
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9 import org.eclipse.swt.events.MouseListener;
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10 import org.eclipse.swt.graphics.Color;
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11 import org.eclipse.swt.graphics.GC;
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12 import org.eclipse.swt.graphics.Point;
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13 import org.eclipse.swt.widgets.Canvas;
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14 import org.eclipse.swt.widgets.Label;
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15 import org.eclipse.swt.graphics.Device;
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16
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17 import de.mpg.mpiwg.itgroup.digilib.digiImage.DigiImage;
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18 import de.mpg.mpiwg.itgroup.digilib.digiImage.DigiImageController;
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19 import de.mpg.mpiwg.itgroup.digilib.plugin.editors.DigilibLinkEditorObservable;
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20
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21 public class RectangleListener implements MouseListener {
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22 static int FIRST_CLICK=1;
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23 static int SECOND_CLICK=2;
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24 static int NO_CLICK=0;
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25 int status=NO_CLICK;
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26 private Label label;
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27 private Point firstPoint;
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28 private DigiImageController dc;
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29
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30
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31 private RectangleListener() {
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32
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33 }
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34
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35 public RectangleListener(DigiImageController dc,Label label){
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36 this.label =label;
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37 this.dc=dc;
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38 }
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39 public void reset(){
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40 status=0;
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41 }
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42 public void mouseDoubleClick(MouseEvent e) {
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43 // TODO Auto-generated method stub
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44
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45 }
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46
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47 public void mouseDown(MouseEvent e) {
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48 // TODO Auto-generated method stub
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49
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50 }
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51
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52 public void mouseUp(MouseEvent e) {
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53 if (status==NO_CLICK){
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54 handleFirstClick(e);
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55 } else if (status==FIRST_CLICK){
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56 handleSecondClick(e);
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57 }
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58
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59 }
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60
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61 private void handleSecondClick(MouseEvent e) {
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62 //Canvas canvas = new Canvas(label.getParent(),SWT.NO_BACKGROUND);
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63
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64 GC gc = new GC(label.getImage());
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65
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66 gc.setForeground(new Color(label.getDisplay(),255,0,0));
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67
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68 gc.drawRectangle(firstPoint.x, firstPoint.y, e.x-firstPoint.x, e.y-firstPoint.y);
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69 gc.dispose();
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70 label.redraw();
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71 status=SECOND_CLICK;
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72 dc.zoomArea(firstPoint.x,firstPoint.y,e.x,e.y);
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73 dc.digiImage.getLabel().removeMouseListener(this);
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74 DigilibLinkEditorObservable.INSTANCE.setCursorStatus(SWT.CURSOR_ARROW);
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75 DigilibLinkEditorObservable.INSTANCE.imageHasChanged(dc.digiImage);
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76
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77 }
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78
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79 private void handleFirstClick(MouseEvent e) {
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80 //Canvas canvas = new Canvas(label.getParent(),SWT.NO_BACKGROUND);
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81
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82 GC gc = new GC(label.getImage());
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83
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84 gc.setForeground(new Color(label.getDisplay(),255,0,0));
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85 firstPoint = new Point(e.x,e.y);
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86 gc.drawOval(e.x, e.y, 10, 10);
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87 gc.dispose();
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88 status=FIRST_CLICK;
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89 label.redraw();
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90 DigilibLinkEditorObservable.INSTANCE.setCursorStatus(SWT.CURSOR_CROSS);
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91 }
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92
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93
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94 }
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