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1
19
24
25 package org.netbeans.modules.java.navigation.base;
26
27 import javax.swing.*;
28 import java.awt.*;
29 import java.awt.event.*;
30 import java.lang.ref.*;
31
32
37 public final class TapPanel extends javax.swing.JPanel  {
38 public static final int UP = 0;
39 public static final int DOWN = 2;
40
41 public static final String PROP_ORIENTATION = "orientation"; private int orientation = UP;
43 private boolean armed = false;
44 private boolean expanded = true;
45 private int minimumHeight = 8;
46
47
50 public TapPanel () {
51 setLayout ( new TrivialLayout () );
52 }
53
54 private static WeakReference<Adap> adapRef = null;
55
56 static class Adap extends MouseAdapter implements MouseMotionListener {
57 MouseListener other = null;
58
59 public void mouseEntered (MouseEvent e) {
60 ( (TapPanel) e.getSource () ).setArmed ( true );
61 }
62
63 public void mouseExited (MouseEvent e) {
64 ( (TapPanel) e.getSource () ).setArmed ( false );
65 }
66
67 public void mouseMoved (MouseEvent e) {
68 ( (TapPanel) e.getSource () ).setArmed ( ( (TapPanel) e.getSource () ).isArmPoint ( e.getPoint () ) );
69 }
70
71 public void mousePressed (MouseEvent e) {
72 if ( ( (TapPanel) e.getSource () ).isArmPoint ( e.getPoint () ) ) {
73 ( (TapPanel) e.getSource () ).setExpanded ( !( (TapPanel) e.getSource () ).isExpanded () );
74 e.consume ();
75 } else if ( other != null ) {
76 other.mousePressed ( e );
77 }
78 }
79
80 public void mouseDragged (MouseEvent e) {
81 }
83 }
84
85 private static Adap getAdapter () {
86 Adap result = null;
87 if ( adapRef != null ) {
88 result = (Adap) adapRef.get ();
89 }
90 if ( result == null ) {
91 result = new Adap ();
92 adapRef = new WeakReference<Adap>( result );
93 }
94 return result;
95 }
96
97
101 void setSecondaryMouseHandler (MouseListener lis) {
102 getAdapter ().other = lis;
103 }
104
105 public void addNotify () {
106 addMouseMotionListener ( getAdapter () );
107 addMouseListener ( getAdapter () );
108 super.addNotify ();
109 }
110
111 public void removeNotify () {
112 super.removeNotify ();
113 removeMouseMotionListener ( getAdapter () );
114 removeMouseListener ( getAdapter () );
115 }
116
117 public int getOrientation () {
118 return orientation;
119 }
120
121 public void setOrientation (int i) {
122 if ( i != orientation ) {
123 int oldOr = i;
124 orientation = i;
125 firePropertyChange ( PROP_ORIENTATION, oldOr, i );
126 }
127 }
128
129 private void setArmed (boolean val) {
130 if ( val != armed ) {
131 armed = val;
132 repaint ();
133 }
134 }
135
136 public boolean isExpanded () {
137 return expanded;
138 }
139
140 public Dimension getPreferredSize () {
141 return getLayout ().preferredLayoutSize ( this );
142 }
143
144 public Dimension getMinimumSize () {
145 Dimension d = getPreferredSize ();
146 d.width = 20;
147 return d;
148 }
149
150 public Dimension getMaximumSize () {
151 return getPreferredSize ();
152 }
153
154 public void setExpanded (boolean b) {
155 if ( expanded != b ) {
156 Dimension d = getPreferredSize ();
157 expanded = b;
158 Dimension d1 = getPreferredSize ();
159 if ( isDisplayable () ) {
160 revalidate();
161 }
162 }
163 }
164
165 private boolean isArmPoint (Point p) {
166 if ( !expanded ) {
167 return p.y > 0 && p.y < getHeight ();
168 } else {
169 if ( orientation == UP ) {
170 return p.y > getHeight () - minimumHeight;
171 } else {
172 return p.y < minimumHeight;
173 }
174 }
175 }
176
177 public void updateBorder () {
178 if ( orientation == UP ) {
179 super.setBorder ( BorderFactory.createEmptyBorder ( 0, 0, minimumHeight, 0 ) );
180 } else {
181 super.setBorder ( BorderFactory.createEmptyBorder ( minimumHeight, 0, 0, 0 ) );
182 }
183 }
184
185 public int getMinimumHeight () {
186 return minimumHeight;
187 }
188
189 public void setBorder () {
190 }
192
193 public void paintBorder (Graphics g) {
194 Color c = armed ? UIManager.getColor ( "List.selectionBackground" ) : getBackground (); int x = 0;
196 int y = orientation == UP ? 1 + ( getHeight () - minimumHeight ) : 0;
197 int w = getWidth ();
198 int h = minimumHeight - 1;
199 g.setColor ( c );
200 g.fillRect ( x, y, w, h );
201
202 int pos = orientation == UP ? getHeight () - 1 : 0;
203 int dir = orientation == UP ? -1 : 1;
204 g.setColor ( armed ? c.darker () : UIManager.getColor ( "controlShadow" ) ); g.drawLine ( 0, pos, w, pos );
206 pos += dir;
207
208 if ( ( orientation == UP ) == expanded ) {
209 up.paintIcon ( this, g, ( getWidth () / 2 ) - ( up.getIconWidth () / 2 ),
210 getHeight () - ( minimumHeight + ( expanded ? 0 : -1 ) ) );
211 } else {
212 down.paintIcon ( this, g, ( getWidth () / 2 ) - ( up.getIconWidth () / 2 ), expanded ? 2 : 1 );
213 }
214 }
215
216 public void paintChildren (Graphics g) {
217 if ( !expanded ) return;
218 super.paintChildren(g);
219 }
220
221 private Icon up = new UpIcon ();
222 private Icon down = new DownIcon ();
223
224 private int ICON_SIZE = 8;
225
226 private class UpIcon implements Icon {
227 public int getIconHeight () {
228 return ICON_SIZE - 2;
229 }
230
231 public int getIconWidth () {
232 return ICON_SIZE + 2;
233 }
234
235 public void paintIcon (java.awt.Component c, Graphics g, int x, int y) {
236
237 g.setColor ( armed ?
238 UIManager.getColor ( "List.selectionForeground" ) : UIManager.getColor ( "controlShadow" ) );
243 int[] xPoints = new int[]{x, x + 8, x + 4};
244 int[] yPoints = new int[]{y + 5, y + 5, y};
245
246 g.fillPolygon ( xPoints, yPoints, 3 );
247 }
248 }
249
250 private class DownIcon implements Icon {
251
252 public int getIconHeight () {
253 return ICON_SIZE - 3;
254 }
255
256 public int getIconWidth () {
257 return ICON_SIZE + 2;
258 }
259
260 public void paintIcon (java.awt.Component c, Graphics g, int x, int y) {
261 x++;
262 g.setColor ( armed ?
263 UIManager.getColor ( "List.selectionForeground" ) : UIManager.getColor ( "controlShadow" ) );
269 int[] xPoints = new int[]{x, x + 8, x + 4};
270 int[] yPoints = new int[]{y, y, y + 4};
271
272 g.fillPolygon ( xPoints, yPoints, 3 );
273 }
274
275 }
276
277 }
278 |
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