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19 package org.openide.explorer.propertysheet;
20
21 import javax.accessibility.Accessible  ;
22 import javax.accessibility.AccessibleContext ;
23 import org.openide.util.Utilities;
24
25 import java.awt.Dimension ;
26 import java.awt.Font ;
27 import java.awt.Graphics ;
28 import java.awt.Image ;
29 import java.awt.Insets ;
30 import java.awt.event.ActionEvent ;
31 import java.awt.event.ActionListener ;
32 import java.awt.event.MouseEvent ;
33 import java.awt.event.MouseListener ;
34 import javax.accessibility.AccessibleRole ;
35
36 import javax.swing.BorderFactory ;
37 import javax.swing.ImageIcon ;
38 import javax.swing.JButton ;
39 import javax.swing.JComponent ;
40 import javax.swing.JComponent.AccessibleJComponent;
41 import javax.swing.JLabel ;
42 import javax.swing.JScrollPane ;
43 import javax.swing.JTextArea ;
44 import javax.swing.SwingUtilities ;
45 import javax.swing.UIManager ;
46 import org.openide.util.NbBundle;
47
48
49
54 class DescriptionComponent extends JComponent implements ActionListener , MouseListener , Accessible {
55 private static int fontHeight = -1;
56 private JTextArea jta;
57 private JLabel lbl;
58 private JButton btn;
59 private JScrollPane jsc;
60
61
62 public DescriptionComponent() {
63 init();
64 }
65
66 private void init() {
67 setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
68
69 jta = new JTextArea ();
70 jta.setLineWrap(true);
71 jta.setWrapStyleWord(true);
72 jta.setOpaque(false);
73 jta.setBackground(getBackground());
74 jta.setEditable(false);
75 jta.setOpaque(false);
76 jta.getAccessibleContext().setAccessibleName( NbBundle.getMessage(DescriptionComponent.class, "ACS_Description") );
77 jta.getAccessibleContext().setAccessibleDescription( NbBundle.getMessage(DescriptionComponent.class, "ACSD_Description") );
78
79 jsc = new JScrollPane (jta);
84 jsc.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
85 jsc.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
86 jsc.setBorder(BorderFactory.createEmptyBorder());
87 jsc.setViewportBorder(jsc.getBorder());
88 jsc.setOpaque(false);
89 jsc.setBackground(getBackground());
90 jsc.getViewport().setOpaque(false);
91
92 Font f = UIManager.getFont("Tree.font");
94 if (f != null) {
95 jta.setFont(f);
96 }
97
98 btn = new JButton ();
99 btn.addActionListener(this);
100
101 Image help = Utilities.loadImage("org/openide/resources/propertysheet/propertySheetHelp.gif", true);
103 ImageIcon helpIcon = new ImageIcon (help); btn.setIcon(helpIcon);
105 btn.setPreferredSize(new Dimension (helpIcon.getIconWidth(), helpIcon.getIconHeight()));
106 btn.setBorder(BorderFactory.createEmptyBorder());
107 btn.setBorderPainted(false);
108 btn.setFocusable(false);
109
110 lbl = new JLabel ("Label");
112 lbl.setFont(new Font (lbl.getFont().getName(), Font.BOLD, lbl.getFont().getSize()));
113
114 add(jsc);
115 add(lbl);
116 add(btn);
117 jta.addMouseListener(this);
118 jsc.addMouseListener(this);
119 lbl.addMouseListener(this);
120 btn.addMouseListener(this);
121 jsc.getViewport().addMouseListener(this);
122 }
123
124 public void doLayout() {
125 Insets ins = getInsets();
126 Dimension bttn = btn.getMinimumSize();
127 Dimension lbll = lbl.getPreferredSize();
128
129 int height = Math.max(bttn.height, lbll.height);
130 int right = getWidth() - (ins.right + bttn.width);
131
132 btn.setBounds(right, ins.top, bttn.width, height);
133
134 lbl.setBounds(ins.left, ins.top, right, height);
135
136 jsc.setBounds(ins.left, height, getWidth() - (ins.left + ins.right), getHeight() - height);
137 }
138
139 public void setDescription(String title, String txt) {
140 if (title == null) {
141 title = "";
142 }
143
144 if (txt == null) {
145 txt = "";
146 }
147
148 lbl.setText(title);
149
150 if (title.equals(txt)) {
151 jta.setText("");
152 } else {
153 jta.setText(txt);
154 }
155 }
156
157 public void setHelpEnabled(boolean val) {
158 btn.setEnabled(val);
159 }
160
161
164 public void paint(Graphics g) {
165 if (fontHeight == -1) {
166 fontHeight = g.getFontMetrics(lbl.getFont()).getHeight();
167 }
168
169 super.paint(g);
170 }
171
172
174 public Dimension getPreferredSize() {
175 Dimension d = new Dimension (super.getPreferredSize());
176
177 if (fontHeight > 0) {
178 Insets ins = getInsets();
179 d.height = Math.max(50, Math.max(d.height, (4 * fontHeight) + ins.top + ins.bottom + 12));
180 } else {
181 d.height = Math.min(d.height, 64);
182 }
183
184 return d;
185 }
186
187 public Dimension getMinimumSize() {
188 if (fontHeight < 0) {
189 return super.getMinimumSize();
190 }
191
192 Dimension d = new Dimension (4 * fontHeight, 4 * fontHeight);
193
194 return d;
195 }
196
197 public void actionPerformed(ActionEvent actionEvent) {
198 PSheet sheet = (PSheet) SwingUtilities.getAncestorOfClass(PSheet.class, this);
199
200 if (sheet != null) {
201 sheet.helpRequested();
202 }
203 }
204
205 private PSheet findSheet() {
206 return (PSheet) SwingUtilities.getAncestorOfClass(PSheet.class, this);
207 }
208
209 public void mouseClicked(MouseEvent e) {
210 }
211
212 public void mouseEntered(MouseEvent e) {
213 }
214
215 public void mouseExited(MouseEvent e) {
216 }
217
218
221 public void mousePressed(MouseEvent e) {
222 PSheet sh = findSheet();
223
224 if (sh != null) {
225 sh.mousePressed(e);
226 }
227 }
228
229
232 public void mouseReleased(MouseEvent e) {
233 PSheet sh = findSheet();
234
235 if (sh != null) {
236 sh.mousePressed(e);
237 }
238 }
239
240 public AccessibleContext getAccessibleContext() {
241
242 if( null == accessibleContext ) {
243 accessibleContext = new AccessibleJComponent() {
244 public AccessibleRole getAccessibleRole() {
245 return AccessibleRole.SWING_COMPONENT;
246 }
247 };
248
249 accessibleContext.setAccessibleName( NbBundle.getMessage(DescriptionComponent.class, "ACS_Description") );
250 accessibleContext.setAccessibleDescription( NbBundle.getMessage(DescriptionComponent.class, "ACSD_Description") );
251 }
252
253 return accessibleContext;
254 }
255 }
256 |
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