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31
32
33 package org.antlr.works.utils;
34
35 import org.antlr.xjlib.appkit.frame.XJFrameInterface;
36
37 import javax.swing.*;
38 import java.awt.*;
39 import java.awt.event.*;
40
41 public abstract class OverlayObject {
42
43 public static final int DEFAULT_WIDTH = 300;
44 public static final int DEFAULT_HEIGHT = 40;
45
46 public static final int ALIGN_LEFT = 0;
47 public static final int ALIGN_CENTER = 1;
48 public static final int ALIGN_CUSTOM = 2;
49
50 protected XJFrameInterface parentFrame;
51 protected JComponent parentComponent;
52 protected JComponent content;
53
54 public OverlayObject(XJFrameInterface parentFrame, JComponent parentComponent) {
55
56 this.parentFrame = parentFrame;
57 this.parentComponent = parentComponent;
58
59 createKeyBindings();
60 content = overlayCreateInterface();
61 content.setVisible(false);
62
63 parentFrame.getLayeredPane().add(content, JLayeredPane.MODAL_LAYER);
64
65 createListeners();
66 }
67
68 private void createListeners() {
69 parentFrame.getJavaContainer().addComponentListener(new ComponentAdapter() {
70 public void componentHidden(ComponentEvent e) {
71 if(content.isVisible())
72 content.setVisible(false);
73 }
74 });
75
76 parentComponent.addComponentListener(new ComponentAdapter() {
77 public void componentMoved(ComponentEvent e) {
78 if(!isOverlayVisibleInParentComponent()) {
79 hide();
80 }
81
82 if(content.isVisible()) {
83 resize();
84 }
85 }
86
87 public void componentResized(ComponentEvent e) {
88 if(!isOverlayVisibleInParentComponent()) {
89 hide();
90 }
91
92 if(content.isVisible()) {
93 resize();
94 }
95 }
96 });
97
98 parentComponent.addMouseListener(new MouseAdapter() {
99 public void mouseClicked(MouseEvent e) {
100 super.mouseClicked(e);
101 if(content.isVisible()) {
102 hide();
103 }
104 }
105
106 public void mousePressed(MouseEvent e) {
107 super.mousePressed(e);
108 if(content.isVisible()) {
109 hide();
110 }
111 }
112 });
113 }
114
115 public void createKeyBindings() {
116 if(overlayDisplayKeyStroke() == null)
117 return;
118
119 parentComponent.getInputMap().put(overlayDisplayKeyStroke(), overlayDisplayKeyStrokeMappingName());
120 parentComponent.getActionMap().put(overlayDisplayKeyStrokeMappingName(), new AbstractAction() {
121 public void actionPerformed(ActionEvent e) {
122 display();
123 }
124 });
125 }
126
127 public boolean isOverlayVisibleInParentComponent() {
128 Rectangle vr = SwingUtilities.convertRectangle(parentComponent, parentComponent.getVisibleRect(), parentFrame.getJavaContainer());
129 Rectangle cr = SwingUtilities.convertRectangle(parentFrame.getLayeredPane(), content.getBounds(), parentFrame.getJavaContainer());
130
131 return vr.intersects(cr);
132 }
133
134 public void hide() {
135 if(content.isVisible()) {
136 content.setVisible(false);
137 parentComponent.requestFocusInWindow();
138 }
139 }
140
141 public void resize() {
142 Rectangle r = parentComponent.getVisibleRect();
143 Point p = SwingUtilities.convertPoint(parentComponent, new Point(r.x, r.y), parentFrame.getRootPane());
144 int x = 0;
145 int y = 0;
146 switch(overlayDefaultAlignment()) {
147 case ALIGN_CENTER:
148 x = p.x+r.width/2-overlayDefaultWidth()/2;
149 y = p.y+r.height/2-overlayDefaultHeight()/2;
150 break;
151 case ALIGN_LEFT:
152 x = p.x+5;
153 y = p.y+r.height/2-overlayDefaultHeight()/2;
154 break;
155 case ALIGN_CUSTOM:
156 Point cp = overlayCustomPosition();
157 if(cp != null) {
158 x = cp.x;
159 y = cp.y;
160 }
161 break;
162 }
163 content.setBounds(x, y, overlayDefaultWidth(), overlayDefaultHeight());
164 }
165
166 public void display() {
167 if(overlayWillDisplay()) {
168 resize();
169 content.setVisible(true);
170 } else {
171 content.setVisible(false);
172 }
173 }
174
175 public boolean isVisible() {
176 return content.isVisible();
177 }
178
179 public abstract JComponent overlayCreateInterface();
180 public abstract boolean overlayWillDisplay();
181
182 public int overlayDefaultWidth() {
183 return DEFAULT_WIDTH;
184 }
185
186 public int overlayDefaultHeight() {
187 return DEFAULT_HEIGHT;
188 }
189
190 public int overlayDefaultAlignment() {
191 return ALIGN_CENTER;
192 }
193
194 public Point overlayCustomPosition() {
195 return null;
196 }
197
198 public KeyStroke overlayDisplayKeyStroke() {
199 return null;
200 }
201
202 public String  overlayDisplayKeyStrokeMappingName() {
203 return null;
204 }
205
206 }
207 |
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