| 1 | package be.nikiroo.utils.ui; |
| 2 | |
| 3 | import java.awt.Color; |
| 4 | import java.awt.Component; |
| 5 | import java.awt.Desktop; |
| 6 | import java.awt.GradientPaint; |
| 7 | import java.awt.Graphics; |
| 8 | import java.awt.Graphics2D; |
| 9 | import java.awt.Paint; |
| 10 | import java.awt.RadialGradientPaint; |
| 11 | import java.awt.RenderingHints; |
| 12 | import java.io.IOException; |
| 13 | import java.net.URISyntaxException; |
| 14 | |
| 15 | import javax.swing.JButton; |
| 16 | import javax.swing.JComponent; |
| 17 | import javax.swing.JEditorPane; |
| 18 | import javax.swing.JLabel; |
| 19 | import javax.swing.JOptionPane; |
| 20 | import javax.swing.JScrollPane; |
| 21 | import javax.swing.UIManager; |
| 22 | import javax.swing.UnsupportedLookAndFeelException; |
| 23 | import javax.swing.event.HyperlinkEvent; |
| 24 | import javax.swing.event.HyperlinkListener; |
| 25 | |
| 26 | import be.nikiroo.utils.Version; |
| 27 | import be.nikiroo.utils.VersionCheck; |
| 28 | |
| 29 | /** |
| 30 | * Some Java Swing utilities. |
| 31 | * |
| 32 | * @author niki |
| 33 | */ |
| 34 | public class UIUtils { |
| 35 | static private Color buttonNormal; |
| 36 | static private Color buttonPressed; |
| 37 | |
| 38 | /** |
| 39 | * Set a fake "native Look & Feel" for the application if possible |
| 40 | * (check for the one currently in use, then try GTK). |
| 41 | * <p> |
| 42 | * <b>Must</b> be called prior to any GUI work. |
| 43 | * |
| 44 | * @return TRUE if it succeeded |
| 45 | */ |
| 46 | static public boolean setLookAndFeel() { |
| 47 | // native look & feel |
| 48 | String noLF = "javax.swing.plaf.metal.MetalLookAndFeel"; |
| 49 | String lf = UIManager.getSystemLookAndFeelClassName(); |
| 50 | if (lf.equals(noLF)) |
| 51 | lf = "com.sun.java.swing.plaf.gtk.GTKLookAndFeel"; |
| 52 | |
| 53 | return setLookAndFeel(lf); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Switch to the given Look & Feel for the application if possible |
| 58 | * (check for the one currently in use, then try GTK). |
| 59 | * <p> |
| 60 | * <b>Must</b> be called prior to any GUI work. |
| 61 | * |
| 62 | * @param laf |
| 63 | * the Look & Feel to use |
| 64 | * |
| 65 | * @return TRUE if it succeeded |
| 66 | */ |
| 67 | static public boolean setLookAndFeel(String laf) { |
| 68 | try { |
| 69 | UIManager.setLookAndFeel(laf); |
| 70 | return true; |
| 71 | } catch (InstantiationException e) { |
| 72 | } catch (ClassNotFoundException e) { |
| 73 | } catch (UnsupportedLookAndFeelException e) { |
| 74 | } catch (IllegalAccessException e) { |
| 75 | } |
| 76 | |
| 77 | return false; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Draw a 3D-looking ellipse at the given location, if the given |
| 82 | * {@link Graphics} object is compatible (with {@link Graphics2D}); draw a |
| 83 | * simple ellipse if not. |
| 84 | * |
| 85 | * @param g |
| 86 | * the {@link Graphics} to draw on |
| 87 | * @param color |
| 88 | * the base colour |
| 89 | * @param x |
| 90 | * the X coordinate |
| 91 | * @param y |
| 92 | * the Y coordinate |
| 93 | * @param width |
| 94 | * the width radius |
| 95 | * @param height |
| 96 | * the height radius |
| 97 | */ |
| 98 | static public void drawEllipse3D(Graphics g, Color color, int x, int y, |
| 99 | int width, int height) { |
| 100 | drawEllipse3D(g, color, x, y, width, height, true); |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Draw a 3D-looking ellipse at the given location, if the given |
| 105 | * {@link Graphics} object is compatible (with {@link Graphics2D}); draw a |
| 106 | * simple ellipse if not. |
| 107 | * |
| 108 | * @param g |
| 109 | * the {@link Graphics} to draw on |
| 110 | * @param color |
| 111 | * the base colour |
| 112 | * @param x |
| 113 | * the X coordinate of the upper left corner |
| 114 | * @param y |
| 115 | * the Y coordinate of the upper left corner |
| 116 | * @param width |
| 117 | * the width radius |
| 118 | * @param height |
| 119 | * the height radius |
| 120 | * @param fill |
| 121 | * fill the content of the ellipse |
| 122 | */ |
| 123 | static public void drawEllipse3D(Graphics g, Color color, int x, int y, |
| 124 | int width, int height, boolean fill) { |
| 125 | if (g instanceof Graphics2D) { |
| 126 | Graphics2D g2 = (Graphics2D) g; |
| 127 | g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, |
| 128 | RenderingHints.VALUE_ANTIALIAS_ON); |
| 129 | |
| 130 | // Retains the previous state |
| 131 | Paint oldPaint = g2.getPaint(); |
| 132 | |
| 133 | // Base shape |
| 134 | g2.setColor(color); |
| 135 | if (fill) { |
| 136 | g2.fillOval(x, y, width, height); |
| 137 | } else { |
| 138 | g2.drawOval(x, y, width, height); |
| 139 | } |
| 140 | |
| 141 | // Compute dark/bright colours |
| 142 | Paint p = null; |
| 143 | Color dark = color.darker().darker(); |
| 144 | Color bright = color.brighter().brighter(); |
| 145 | Color darkEnd = new Color(dark.getRed(), dark.getGreen(), |
| 146 | dark.getBlue(), 0); |
| 147 | Color darkPartial = new Color(dark.getRed(), dark.getGreen(), |
| 148 | dark.getBlue(), 64); |
| 149 | Color brightEnd = new Color(bright.getRed(), bright.getGreen(), |
| 150 | bright.getBlue(), 0); |
| 151 | |
| 152 | // Adds shadows at the bottom left |
| 153 | p = new GradientPaint(0, height, dark, width, 0, darkEnd); |
| 154 | g2.setPaint(p); |
| 155 | if (fill) { |
| 156 | g2.fillOval(x, y, width, height); |
| 157 | } else { |
| 158 | g2.drawOval(x, y, width, height); |
| 159 | } |
| 160 | // Adds highlights at the top right |
| 161 | p = new GradientPaint(width, 0, bright, 0, height, brightEnd); |
| 162 | g2.setPaint(p); |
| 163 | if (fill) { |
| 164 | g2.fillOval(x, y, width, height); |
| 165 | } else { |
| 166 | g2.drawOval(x, y, width, height); |
| 167 | } |
| 168 | |
| 169 | // Darken the edges |
| 170 | p = new RadialGradientPaint(x + width / 2f, y + height / 2f, |
| 171 | Math.min(width / 2f, height / 2f), new float[] { 0f, 1f }, |
| 172 | new Color[] { darkEnd, darkPartial }, |
| 173 | RadialGradientPaint.CycleMethod.NO_CYCLE); |
| 174 | g2.setPaint(p); |
| 175 | if (fill) { |
| 176 | g2.fillOval(x, y, width, height); |
| 177 | } else { |
| 178 | g2.drawOval(x, y, width, height); |
| 179 | } |
| 180 | |
| 181 | // Adds inner highlight at the top right |
| 182 | p = new RadialGradientPaint(x + 3f * width / 4f, y + height / 4f, |
| 183 | Math.min(width / 4f, height / 4f), |
| 184 | new float[] { 0.0f, 0.8f }, |
| 185 | new Color[] { bright, brightEnd }, |
| 186 | RadialGradientPaint.CycleMethod.NO_CYCLE); |
| 187 | g2.setPaint(p); |
| 188 | if (fill) { |
| 189 | g2.fillOval(x * 2, y, width, height); |
| 190 | } else { |
| 191 | g2.drawOval(x * 2, y, width, height); |
| 192 | } |
| 193 | |
| 194 | // Reset original paint |
| 195 | g2.setPaint(oldPaint); |
| 196 | } else { |
| 197 | g.setColor(color); |
| 198 | if (fill) { |
| 199 | g.fillOval(x, y, width, height); |
| 200 | } else { |
| 201 | g.drawOval(x, y, width, height); |
| 202 | } |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * Add a {@link JScrollPane} around the given panel and use a sensible (for |
| 208 | * me) increment for the mouse wheel. |
| 209 | * |
| 210 | * @param pane |
| 211 | * the panel to wrap in a {@link JScrollPane} |
| 212 | * @param allowHorizontal |
| 213 | * allow horizontal scrolling (not always desired) |
| 214 | * |
| 215 | * @return the {@link JScrollPane} |
| 216 | */ |
| 217 | static public JScrollPane scroll(JComponent pane, boolean allowHorizontal) { |
| 218 | return scroll(pane, allowHorizontal, true); |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * Add a {@link JScrollPane} around the given panel and use a sensible (for |
| 223 | * me) increment for the mouse wheel. |
| 224 | * |
| 225 | * @param pane |
| 226 | * the panel to wrap in a {@link JScrollPane} |
| 227 | * @param allowHorizontal |
| 228 | * allow horizontal scrolling (not always desired) |
| 229 | * @param allowVertical |
| 230 | * allow vertical scrolling (usually yes, but sometimes you only |
| 231 | * want horizontal) |
| 232 | * |
| 233 | * @return the {@link JScrollPane} |
| 234 | */ |
| 235 | static public JScrollPane scroll(JComponent pane, boolean allowHorizontal, |
| 236 | boolean allowVertical) { |
| 237 | JScrollPane scroll = new JScrollPane(pane); |
| 238 | |
| 239 | scroll.getVerticalScrollBar().setUnitIncrement(16); |
| 240 | scroll.getHorizontalScrollBar().setUnitIncrement(16); |
| 241 | |
| 242 | if (!allowHorizontal) { |
| 243 | scroll.setHorizontalScrollBarPolicy( |
| 244 | JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); |
| 245 | } |
| 246 | if (!allowVertical) { |
| 247 | scroll.setVerticalScrollBarPolicy( |
| 248 | JScrollPane.VERTICAL_SCROLLBAR_NEVER); |
| 249 | } |
| 250 | |
| 251 | return scroll; |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * Show a confirmation message to the user to show him the changes since |
| 256 | * last version. |
| 257 | * <p> |
| 258 | * HTML 3.2 supported, links included (the user browser will be launched if |
| 259 | * possible). |
| 260 | * <p> |
| 261 | * If this is already the latest version, a message will still be displayed. |
| 262 | * |
| 263 | * @param parentComponent |
| 264 | * determines the {@link java.awt.Frame} in which the dialog is |
| 265 | * displayed; if <code>null</code>, or if the |
| 266 | * <code>parentComponent</code> has no {@link java.awt.Frame}, a |
| 267 | * default {@link java.awt.Frame} is used |
| 268 | * @param updates |
| 269 | * the new version |
| 270 | * @param introText |
| 271 | * an introduction text before the list of changes |
| 272 | * @param title |
| 273 | * the title of the dialog |
| 274 | * |
| 275 | * @return TRUE if the user clicked on OK, false if the dialog was dismissed |
| 276 | */ |
| 277 | static public boolean showUpdatedDialog(Component parentComponent, |
| 278 | VersionCheck updates, String introText, String title) { |
| 279 | |
| 280 | StringBuilder builder = new StringBuilder(); |
| 281 | final JEditorPane updateMessage = new JEditorPane("text/html", ""); |
| 282 | if (introText != null && !introText.isEmpty()) { |
| 283 | builder.append(introText); |
| 284 | builder.append("<br>"); |
| 285 | builder.append("<br>"); |
| 286 | } |
| 287 | for (Version v : updates.getNewer()) { |
| 288 | builder.append("\t<b>" // |
| 289 | + "Version " + v.toString() // |
| 290 | + "</b>"); |
| 291 | builder.append("<br>"); |
| 292 | builder.append("<ul>"); |
| 293 | for (String item : updates.getChanges().get(v)) { |
| 294 | builder.append("<li>" + item + "</li>"); |
| 295 | } |
| 296 | builder.append("</ul>"); |
| 297 | } |
| 298 | |
| 299 | // html content |
| 300 | updateMessage.setText("<html><body>" // |
| 301 | + builder// |
| 302 | + "</body></html>"); |
| 303 | |
| 304 | // handle link events |
| 305 | updateMessage.addHyperlinkListener(new HyperlinkListener() { |
| 306 | @Override |
| 307 | public void hyperlinkUpdate(HyperlinkEvent e) { |
| 308 | if (e.getEventType().equals(HyperlinkEvent.EventType.ACTIVATED)) |
| 309 | try { |
| 310 | Desktop.getDesktop().browse(e.getURL().toURI()); |
| 311 | } catch (IOException ee) { |
| 312 | ee.printStackTrace(); |
| 313 | } catch (URISyntaxException ee) { |
| 314 | ee.printStackTrace(); |
| 315 | } |
| 316 | } |
| 317 | }); |
| 318 | updateMessage.setEditable(false); |
| 319 | updateMessage.setBackground(new JLabel().getBackground()); |
| 320 | updateMessage.addHyperlinkListener(new HyperlinkListener() { |
| 321 | @Override |
| 322 | public void hyperlinkUpdate(HyperlinkEvent evn) { |
| 323 | if (evn.getEventType() == HyperlinkEvent.EventType.ACTIVATED) { |
| 324 | if (Desktop.isDesktopSupported()) { |
| 325 | try { |
| 326 | Desktop.getDesktop().browse(evn.getURL().toURI()); |
| 327 | } catch (IOException e) { |
| 328 | } catch (URISyntaxException e) { |
| 329 | } |
| 330 | } |
| 331 | } |
| 332 | } |
| 333 | }); |
| 334 | |
| 335 | return JOptionPane.showConfirmDialog(parentComponent, updateMessage, |
| 336 | title, JOptionPane.DEFAULT_OPTION) == JOptionPane.OK_OPTION; |
| 337 | } |
| 338 | |
| 339 | /** |
| 340 | * Set the given {@link JButton} as "pressed" (selected, but with more UI |
| 341 | * visibility). |
| 342 | * <p> |
| 343 | * The {@link JButton} will answer {@link JButton#isSelected()} if it is |
| 344 | * pressed. |
| 345 | * |
| 346 | * @param button |
| 347 | * the button to select/press |
| 348 | * @param pressed |
| 349 | * the new "pressed" state |
| 350 | */ |
| 351 | static public void setButtonPressed(JButton button, boolean pressed) { |
| 352 | if (buttonNormal == null) { |
| 353 | JButton defButton = new JButton(" "); |
| 354 | buttonNormal = defButton.getBackground(); |
| 355 | if (buttonNormal.getBlue() >= 128) { |
| 356 | buttonPressed = new Color( // |
| 357 | Math.max(buttonNormal.getRed() - 100, 0), // |
| 358 | Math.max(buttonNormal.getGreen() - 100, 0), // |
| 359 | Math.max(buttonNormal.getBlue() - 100, 0)); |
| 360 | } else { |
| 361 | buttonPressed = new Color( // |
| 362 | Math.min(buttonNormal.getRed() + 100, 255), // |
| 363 | Math.min(buttonNormal.getGreen() + 100, 255), // |
| 364 | Math.min(buttonNormal.getBlue() + 100, 255)); |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | button.setSelected(pressed); |
| 369 | button.setBackground(pressed ? buttonPressed : buttonNormal); |
| 370 | } |
| 371 | } |