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1
8 package com.nightlabs.editor2d.rulers;
9
10 import java.beans.PropertyChangeEvent  ;
11 import java.beans.PropertyChangeListener ;
12 import java.util.ArrayList ;
13 import java.util.List ;
14
15 import org.eclipse.gef.commands.Command;
16 import org.eclipse.gef.rulers.RulerChangeListener;
17 import org.eclipse.gef.rulers.RulerProvider;
18
19 import com.nightlabs.editor2d.EditorGuide;
20 import com.nightlabs.editor2d.EditorRuler;
21 import com.nightlabs.editor2d.command.CreateGuideCommand;
22 import com.nightlabs.editor2d.command.DeleteGuideCommand;
23 import com.nightlabs.editor2d.command.MoveGuideCommand;
24
25
26 public class EditorRulerProvider
27 extends RulerProvider
28 {
29 private EditorRuler ruler;
30 private PropertyChangeListener rulerListener = new PropertyChangeListener () {
31 public void propertyChange(PropertyChangeEvent evt) {
32 if (evt.getPropertyName().equals(EditorRuler.PROPERTY_CHILDREN)) {
33 EditorGuide guide = (EditorGuide)evt.getNewValue();
34 if (getGuides().contains(guide)) {
35 guide.addPropertyChangeListener(guideListener);
36 } else {
37 guide.removePropertyChangeListener(guideListener);
38 }
39 for (int i = 0; i < listeners.size(); i++) {
40 ((RulerChangeListener)listeners.get(i))
41 .notifyGuideReparented(guide);
42 }
43 } else {
44 for (int i = 0; i < listeners.size(); i++) {
45 ((RulerChangeListener)listeners.get(i))
46 .notifyUnitsChanged(ruler.getUnit());
47 }
48 }
49 }
50 };
51 private PropertyChangeListener guideListener = new PropertyChangeListener () {
52 public void propertyChange(PropertyChangeEvent evt) {
53 if (evt.getPropertyName().equals(EditorGuide.PROPERTY_CHILDREN)) {
54 for (int i = 0; i < listeners.size(); i++) {
55 ((RulerChangeListener)listeners.get(i))
56 .notifyPartAttachmentChanged(evt.getNewValue(), evt.getSource());
57 }
58 } else {
59 for (int i = 0; i < listeners.size(); i++) {
60 ((RulerChangeListener)listeners.get(i))
61 .notifyGuideMoved(evt.getSource());
62 }
63 }
64 }
65 };
66
67 public EditorRulerProvider(EditorRuler ruler) {
68 this.ruler = ruler;
69 this.ruler.addPropertyChangeListener(rulerListener);
70 List guides = getGuides();
71 for (int i = 0; i < guides.size(); i++) {
72 ((EditorGuide)guides.get(i)).addPropertyChangeListener(guideListener);
73 }
74 }
75
76 public List getAttachedModelObjects(Object guide) {
77 return new ArrayList (((EditorGuide)guide).getParts());
78 }
79
80 public Command getCreateGuideCommand(int position) {
81 return new CreateGuideCommand(ruler, position);
82 }
83
84 public Command getDeleteGuideCommand(Object guide) {
85 return new DeleteGuideCommand((EditorGuide)guide, ruler);
86 }
87
88 public Command getMoveGuideCommand(Object guide, int pDelta) {
89 return new MoveGuideCommand((EditorGuide)guide, pDelta);
90 }
91
92 public int[] getGuidePositions() {
93 List guides = getGuides();
94 int[] result = new int[guides.size()];
95 for (int i = 0; i < guides.size(); i++) {
96 result[i] = ((EditorGuide)guides.get(i)).getPosition();
97 }
98 return result;
99 }
100
101 public Object getRuler() {
102 return ruler;
103 }
104
105 public int getUnit() {
106 return ruler.getUnit();
107 }
108
109 public void setUnit(int newUnit) {
110 ruler.setUnit(newUnit);
111 }
112
113 public int getGuidePosition(Object guide) {
114 return ((EditorGuide)guide).getPosition();
115 }
116
117 public List getGuides() {
118 return ruler.getGuides();
119 }
120
121 }
122
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