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1
7
8 package org.jdesktop.swing;
9
10 import java.applet.Applet  ;
11 import java.awt.AlphaComposite ;
12 import java.awt.BorderLayout ;
13 import java.awt.Color ;
14 import java.awt.Component ;
15 import java.awt.Container ;
16 import java.awt.Composite ;
17 import java.awt.Dimension ;
18 import java.awt.Graphics ;
19 import java.awt.Graphics2D ;
20 import java.awt.Insets ;
21 import java.awt.Point ;
22 import java.awt.Rectangle ;
23 import java.awt.Window ;
24 import java.awt.event.ActionEvent ;
25 import java.awt.event.ActionListener ;
26 import java.awt.event.MouseAdapter ;
27 import java.awt.event.MouseEvent ;
28
29 import javax.swing.JComponent ;
30 import javax.swing.JFrame ;
31 import javax.swing.JLabel ;
32 import javax.swing.JPanel ;
33 import javax.swing.JTextArea ;
34 import javax.swing.JTextPane ;
35 import javax.swing.SwingConstants ;
36 import javax.swing.SwingUtilities ;
37 import javax.swing.Timer ;
38 import javax.swing.border.CompoundBorder ;
39 import javax.swing.border.LineBorder ;
40
41
42
58
59 public class JXGlassBox extends JPanel {
60 private static final int SHOW_DELAY = 30; private static final int TIMER_INCREMENT = 5;
63 private float alphaStart = 0.01f;
64 private float alphaEnd = 0.8f;
65
66 private Timer animateTimer;
67 private float animateAlpha = alphaStart;
68 private float alphaIncrement = 0.02f;
69
70 private boolean dismissOnClick = false;
71 private MouseAdapter dismissListener = null;
72
73 private transient Insets insets = new Insets (0,0,0,0);
75 public JXGlassBox() {
76 setOpaque(false);
77 setBackground(Color.white);
78 setDismissOnClick(true);
79
80 animateTimer = new Timer (TIMER_INCREMENT, new ActionListener () {
81 public void actionPerformed(ActionEvent e) {
82 animateAlpha += alphaIncrement;
83 paintImmediately(0, 0, getWidth(), getHeight());
84 }
85 });
86 }
87
88 public JXGlassBox(float alpha) {
89 this();
90 setAlpha(alpha);
91 }
92
93 public void setAlpha(float alpha) {
94 this.alphaEnd = alpha;
95 this.alphaIncrement = (alphaEnd - alphaStart)/(SHOW_DELAY/TIMER_INCREMENT);
96 }
97
98 public float getAlpha() {
99 return alphaEnd;
100 }
101
102 public void setDismissOnClick(boolean dismissOnClick) {
103 boolean oldDismissOnClick = this.dismissOnClick;
104 this.dismissOnClick = dismissOnClick;
105 if (dismissOnClick && !oldDismissOnClick) {
106 if (dismissListener == null) {
107 dismissListener = new MouseAdapter () {
108 public void mouseClicked(MouseEvent e) {
109 JComponent glassBox = JXGlassBox.this;
110 JComponent parent = (JComponent ) glassBox.getParent();
111 Container toplevel = parent.getTopLevelAncestor();
112 parent.remove(glassBox);
113 toplevel.validate();
114 toplevel.repaint();
115 }
116 };
117 }
118 addMouseListener(dismissListener);
119 }
120 else if (!dismissOnClick && oldDismissOnClick) {
121 removeMouseListener(dismissListener);
122 }
123 }
124
125 public void paint(Graphics g) {
126 getInsets(insets);
127 Graphics2D g2d = (Graphics2D )g;
128 Composite oldComp = g2d.getComposite();
129 Composite alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
130 Math.min(alphaEnd, animateAlpha));
131 g2d.setComposite(alphaComp);
132 g2d.setColor(getBackground());
133 g2d.fillRect(insets.left, insets.top,
134 getWidth() - insets.left - insets.right,
135 getHeight() - insets.top - insets.bottom);
136 super.paint(g2d);
137 g2d.setComposite(oldComp);
138
139 if (!animateTimer.isRunning() && animateAlpha < alphaEnd ) {
140 animateTimer.start();
141 }
142 if (animateTimer.isRunning() && animateAlpha >= alphaEnd) {
143 animateTimer.stop();
144 }
145 }
146
147 public void setVisible(boolean visible) {
148 animateAlpha = alphaStart;
149 super.setVisible(visible);
150 }
151
152 private Container getTopLevel() {
153 Container p = getParent();
154 while (p != null && !(p instanceof Window || p instanceof Applet )) {
155 p = p.getParent();
156 }
157 return p;
158 }
159
160 public void showOnGlassPane(Container glassPane, Component component,
161 int componentX, int componentY, int positionHint) {
162 Dimension boxPrefSize = getPreferredSize();
163 Dimension glassSize = glassPane.getSize();
164 Rectangle compRect = component.getBounds();
165 int boxX = 0;
166 int boxY = 0;
167 int boxWidth = Math.min(boxPrefSize.width, glassSize.width);
168 int boxHeight = Math.min(boxPrefSize.height, glassSize.height);
169
170 Point compLocation = SwingUtilities.convertPoint(component.getParent(),
171 compRect.x, compRect.y,
172 glassPane);
173
174 if (positionHint == SwingConstants.TOP) {
175 if (compLocation.x + componentX + boxWidth <= glassSize.width) {
176 boxX = compLocation.x + componentX;
177 } else {
178 boxX = glassSize.width - boxWidth;
179 }
180 boxY = compLocation.y - boxHeight;
181 if (boxY < 0) {
182 if (compLocation.y + compRect.height <= glassSize.height) {
183 boxY = compLocation.y + compRect.height;
184 }
185 else {
186 boxY = 0;
187 }
188 }
189 }
190
191 glassPane.setLayout(null);
192 setBounds(boxX, boxY, boxWidth, boxHeight);
193 glassPane.add(this);
194 glassPane.setVisible(true);
195
196 Container topLevel = getTopLevel();
197 topLevel.validate();
198 topLevel.repaint();
199
200 }
201
202 public void showOnGlassPane(Container glassPane, int originX, int originY) {
203 Dimension boxPrefSize = getPreferredSize();
204 Dimension glassSize = glassPane.getSize();
205 int boxX = 0;
206 int boxY = 0;
207 int boxWidth = 0;
208 int boxHeight = 0;
209
210 boxWidth = Math.min(boxPrefSize.width, glassSize.width);
211 boxHeight = Math.min(boxPrefSize.height, glassSize.height);
212
213 if (originY - boxHeight >= 0) {
214 boxY = originY - boxHeight;
215 } else if (originY + boxHeight <= glassSize.height) {
216 boxY = originY;
217 } else {
218 boxY = glassSize.height - boxHeight;
219 }
220
221 if (originX + boxWidth <= glassSize.width) {
222 boxX = originX;
223 } else if (originX >= boxWidth) {
224 boxX = originX - boxWidth;
225 } else {
226 boxX = glassSize.width - boxWidth;
227 }
228
229 glassPane.setLayout(null);
230 setBounds(boxX, boxY, boxWidth, boxHeight);
231 glassPane.add(this);
232 glassPane.setVisible(true);
233
234 Container topLevel = getTopLevel();
235 topLevel.validate();
236 topLevel.repaint();
237 }
238
239 } |
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