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1
27
28 package org.nightlabs.editor2d.rulers;
29
30 import java.beans.PropertyChangeEvent  ;
31 import java.beans.PropertyChangeListener ;
32 import java.util.ArrayList ;
33 import java.util.List ;
34
35 import org.eclipse.gef.commands.Command;
36 import org.eclipse.gef.rulers.RulerChangeListener;
37 import org.eclipse.gef.rulers.RulerProvider;
38
39 import org.nightlabs.editor2d.EditorGuide;
40 import org.nightlabs.editor2d.EditorRuler;
41 import org.nightlabs.editor2d.command.CreateGuideCommand;
42 import org.nightlabs.editor2d.command.DeleteGuideCommand;
43 import org.nightlabs.editor2d.command.MoveGuideCommand;
44
45
46 public class EditorRulerProvider
47 extends RulerProvider
48 {
49 private EditorRuler ruler;
50 private PropertyChangeListener rulerListener = new PropertyChangeListener () {
51 public void propertyChange(PropertyChangeEvent evt) {
52 if (evt.getPropertyName().equals(EditorRuler.PROPERTY_CHILDREN)) {
53 EditorGuide guide = (EditorGuide)evt.getNewValue();
54 if (getGuides().contains(guide)) {
55 guide.addPropertyChangeListener(guideListener);
56 } else {
57 guide.removePropertyChangeListener(guideListener);
58 }
59 for (int i = 0; i < listeners.size(); i++) {
60 ((RulerChangeListener)listeners.get(i))
61 .notifyGuideReparented(guide);
62 }
63 } else {
64 for (int i = 0; i < listeners.size(); i++) {
65 ((RulerChangeListener)listeners.get(i))
66 .notifyUnitsChanged(ruler.getUnit());
67 }
68 }
69 }
70 };
71 private PropertyChangeListener guideListener = new PropertyChangeListener () {
72 public void propertyChange(PropertyChangeEvent evt) {
73 if (evt.getPropertyName().equals(EditorGuide.PROPERTY_CHILDREN)) {
74 for (int i = 0; i < listeners.size(); i++) {
75 ((RulerChangeListener)listeners.get(i))
76 .notifyPartAttachmentChanged(evt.getNewValue(), evt.getSource());
77 }
78 } else {
79 for (int i = 0; i < listeners.size(); i++) {
80 ((RulerChangeListener)listeners.get(i))
81 .notifyGuideMoved(evt.getSource());
82 }
83 }
84 }
85 };
86
87 public EditorRulerProvider(EditorRuler ruler) {
88 this.ruler = ruler;
89 this.ruler.addPropertyChangeListener(rulerListener);
90 List guides = getGuides();
91 for (int i = 0; i < guides.size(); i++) {
92 ((EditorGuide)guides.get(i)).addPropertyChangeListener(guideListener);
93 }
94 }
95
96 public List getAttachedModelObjects(Object guide) {
97 return new ArrayList (((EditorGuide)guide).getParts());
98 }
99
100 public Command getCreateGuideCommand(int position) {
101 return new CreateGuideCommand(ruler, position);
102 }
103
104 public Command getDeleteGuideCommand(Object guide) {
105 return new DeleteGuideCommand((EditorGuide)guide, ruler);
106 }
107
108 public Command getMoveGuideCommand(Object guide, int pDelta) {
109 return new MoveGuideCommand((EditorGuide)guide, pDelta);
110 }
111
112 public int[] getGuidePositions() {
113 List guides = getGuides();
114 int[] result = new int[guides.size()];
115 for (int i = 0; i < guides.size(); i++) {
116 result[i] = ((EditorGuide)guides.get(i)).getPosition();
117 }
118 return result;
119 }
120
121 public Object getRuler() {
122 return ruler;
123 }
124
125 public int getUnit() {
126 return ruler.getUnit();
127 }
128
129 public void setUnit(int newUnit) {
130 ruler.setUnit(newUnit);
131 }
132
133 public int getGuidePosition(Object guide) {
134 return ((EditorGuide)guide).getPosition();
135 }
136
137 public List getGuides() {
138 return ruler.getGuides();
139 }
140
141 }
142 |
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