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1
8 package com.nightlabs.editor2d.tools;
9
10 import org.apache.log4j.Logger;
11 import org.eclipse.draw2d.PositionConstants;
12 import org.eclipse.draw2d.RectangleFigure;
13 import org.eclipse.draw2d.geometry.Point;
14 import org.eclipse.draw2d.geometry.PrecisionRectangle;
15 import org.eclipse.draw2d.geometry.Rectangle;
16 import org.eclipse.gef.SnapToHelper;
17 import org.eclipse.gef.requests.CreationFactory;
18
19 import com.nightlabs.editor2d.command.CreateShapeCommand;
20 import com.nightlabs.editor2d.j2d.GeneralShape;
21 import com.nightlabs.editor2d.request.EditorCreateRequest;
22 import com.nightlabs.editor2d.util.EditorGeneralShapeFactory;
23
24
25 public class RectangleTool
26 extends EditorCreationTool
27 {
28 public static final Logger LOGGER = Logger.getLogger(RectangleTool.class);
29
30 public RectangleTool(CreationFactory aFactory)
31 {
32 super(aFactory);
33 }
34
35
38 public void deactivate()
39 {
40 super.deactivate();
41 helper = null;
42 }
43
44 protected Rectangle bounds;
45 protected boolean handleButtonDown(int button)
46 {
47 if (button == 1)
48 {
49 Point p = getLocation();
50 getEditorCreateRequest().setLocation(p);
51 lockTargetEditPart(getTargetEditPart());
52 helper = (SnapToHelper)getTargetEditPart().getAdapter(SnapToHelper.class);
54
55 bounds = new Rectangle(p.x, p.y, p.x+1, p.y+1);
56 RectangleFigure rectFigure = new RectangleFigure();
57 rectFigure.setBounds(bounds);
58 getEditorCreateRequest().setUseShape(true);
59 getEditorCreateRequest().setShape(rectFigure);
60
61 stateTransition(STATE_INITIAL, STATE_DRAG_IN_PROGRESS);
62 setCursor(getDefaultCursor());
63 }
64 return true;
65 }
66
67 protected void updateTargetRequest()
68 {
69 EditorCreateRequest req = (EditorCreateRequest) getCreateRequest();
70 if (isInState(STATE_DRAG_IN_PROGRESS))
71 {
72 Point loq = getStartLocation();
73 Rectangle bounds = new Rectangle(loq, loq);
74 bounds.union(loq.getTranslated(getDragMoveDelta()));
75 req.setSize(bounds.getSize());
76 req.setLocation(bounds.getLocation());
77 req.getExtendedData().clear();
78 if (!getCurrentInput().isAltKeyDown() && helper != null) {
79 PrecisionRectangle baseRect = new PrecisionRectangle(bounds);
80 PrecisionRectangle result = baseRect.getPreciseCopy();
81 helper.snapRectangle(req, PositionConstants.NSEW,
82 baseRect, result);
83 req.setLocation(result.getLocation());
84 req.setSize(result.getSize());
85 }
86 } else {
87 req.setSize(null);
88 req.setLocation(getLocation());
89 }
90 }
91
92 public void performCreation(int button)
93 {
94 GeneralShape gs = EditorGeneralShapeFactory.createRectangle(bounds);
95 getEditorCreateRequest().setUseShape(false);
96 if (getCurrentCommand() instanceof CreateShapeCommand) {
97 CreateShapeCommand command = (CreateShapeCommand) getCurrentCommand();
98 command.setGeneralShape(gs);
99 }
100
101 super.performCreation(button);
102 }
103 }
104
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