J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.swing.plaf.synth; |
| 27 | |
| 28 | import java.awt.*; |
| 29 | import java.awt.event.*; |
| 30 | import java.io.Serializable; |
| 31 | import javax.swing.*; |
| 32 | import javax.swing.border.*; |
| 33 | import java.awt.*; |
| 34 | import java.awt.event.*; |
| 35 | import java.beans.*; |
| 36 | import javax.swing.plaf.*; |
| 37 | import javax.swing.plaf.basic.BasicButtonUI; |
| 38 | import javax.swing.plaf.basic.BasicHTML; |
| 39 | import javax.swing.text.View; |
| 40 | import sun.swing.plaf.synth.SynthUI; |
| 41 | import sun.swing.plaf.synth.DefaultSynthStyle; |
| 42 | |
| 43 | /** |
| 44 | * Synth's ButtonUI implementation. |
| 45 | * |
| 46 | * @author Scott Violet |
| 47 | */ |
| 48 | class SynthButtonUI extends BasicButtonUI implements |
| 49 | PropertyChangeListener, SynthUI { |
| 50 | private SynthStyle style; |
| 51 | |
| 52 | public static ComponentUI createUI(JComponent c) { |
| 53 | return new SynthButtonUI(); |
| 54 | } |
| 55 | |
| 56 | protected void installDefaults(AbstractButton b) { |
| 57 | updateStyle(b); |
| 58 | |
| 59 | LookAndFeel.installProperty(b, "rolloverEnabled", Boolean.TRUE); |
| 60 | } |
| 61 | |
| 62 | protected void installListeners(AbstractButton b) { |
| 63 | super.installListeners(b); |
| 64 | b.addPropertyChangeListener(this); |
| 65 | } |
| 66 | |
| 67 | void updateStyle(AbstractButton b) { |
| 68 | SynthContext context = getContext(b, SynthConstants.ENABLED); |
| 69 | SynthStyle oldStyle = style; |
| 70 | style = SynthLookAndFeel.updateStyle(context, this); |
| 71 | if (style != oldStyle) { |
| 72 | if (b.getMargin() == null || |
| 73 | (b.getMargin() instanceof UIResource)) { |
| 74 | Insets margin = (Insets)style.get(context,getPropertyPrefix() + |
| 75 | "margin"); |
| 76 | |
| 77 | if (margin == null) { |
| 78 | // Some places assume margins are non-null. |
| 79 | margin = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS; |
| 80 | } |
| 81 | b.setMargin(margin); |
| 82 | } |
| 83 | |
| 84 | Object value = style.get(context, getPropertyPrefix() + "iconTextGap"); |
| 85 | if (value != null) { |
| 86 | LookAndFeel.installProperty(b, "iconTextGap", value); |
| 87 | } |
| 88 | |
| 89 | value = style.get(context, getPropertyPrefix() + "contentAreaFilled"); |
| 90 | LookAndFeel.installProperty(b, "contentAreaFilled", |
| 91 | value != null? value : Boolean.TRUE); |
| 92 | |
| 93 | if (oldStyle != null) { |
| 94 | uninstallKeyboardActions(b); |
| 95 | installKeyboardActions(b); |
| 96 | } |
| 97 | |
| 98 | } |
| 99 | context.dispose(); |
| 100 | } |
| 101 | |
| 102 | protected void uninstallListeners(AbstractButton b) { |
| 103 | super.uninstallListeners(b); |
| 104 | b.removePropertyChangeListener(this); |
| 105 | } |
| 106 | |
| 107 | protected void uninstallDefaults(AbstractButton b) { |
| 108 | SynthContext context = getContext(b, ENABLED); |
| 109 | |
| 110 | style.uninstallDefaults(context); |
| 111 | context.dispose(); |
| 112 | style = null; |
| 113 | } |
| 114 | |
| 115 | public SynthContext getContext(JComponent c) { |
| 116 | return getContext(c, getComponentState(c)); |
| 117 | } |
| 118 | |
| 119 | SynthContext getContext(JComponent c, int state) { |
| 120 | Region region = getRegion(c); |
| 121 | return SynthContext.getContext(SynthContext.class, c, region, |
| 122 | style, state); |
| 123 | } |
| 124 | |
| 125 | private Region getRegion(JComponent c) { |
| 126 | return SynthLookAndFeel.getRegion(c); |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * Returns the current state of the passed in <code>AbstractButton</code>. |
| 131 | */ |
| 132 | private int getComponentState(JComponent c) { |
| 133 | int state = ENABLED; |
| 134 | |
| 135 | if (!c.isEnabled()) { |
| 136 | state = DISABLED; |
| 137 | } |
| 138 | if (SynthLookAndFeel.selectedUI == this) { |
| 139 | return SynthLookAndFeel.selectedUIState | SynthConstants.ENABLED; |
| 140 | } |
| 141 | AbstractButton button = (AbstractButton) c; |
| 142 | ButtonModel model = button.getModel(); |
| 143 | |
| 144 | if (model.isPressed()) { |
| 145 | if (model.isArmed()) { |
| 146 | state = PRESSED; |
| 147 | } |
| 148 | else { |
| 149 | state = MOUSE_OVER; |
| 150 | } |
| 151 | } |
| 152 | if (model.isRollover()) { |
| 153 | state |= MOUSE_OVER; |
| 154 | } |
| 155 | if (model.isSelected()) { |
| 156 | state |= SELECTED; |
| 157 | } |
| 158 | if (c.isFocusOwner() && button.isFocusPainted()) { |
| 159 | state |= FOCUSED; |
| 160 | } |
| 161 | if ((c instanceof JButton) && ((JButton)c).isDefaultButton()) { |
| 162 | state |= DEFAULT; |
| 163 | } |
| 164 | return state; |
| 165 | } |
| 166 | |
| 167 | public int getBaseline(JComponent c, int width, int height) { |
| 168 | if (c == null) { |
| 169 | throw new NullPointerException("Component must be non-null"); |
| 170 | } |
| 171 | if (width < 0 || height < 0) { |
| 172 | throw new IllegalArgumentException( |
| 173 | "Width and height must be >= 0"); |
| 174 | } |
| 175 | AbstractButton b = (AbstractButton)c; |
| 176 | String text = b.getText(); |
| 177 | if (text == null || "".equals(text)) { |
| 178 | return -1; |
| 179 | } |
| 180 | Insets i = b.getInsets(); |
| 181 | Rectangle viewRect = new Rectangle(); |
| 182 | Rectangle textRect = new Rectangle(); |
| 183 | Rectangle iconRect = new Rectangle(); |
| 184 | viewRect.x = i.left; |
| 185 | viewRect.y = i.top; |
| 186 | viewRect.width = width - (i.right + viewRect.x); |
| 187 | viewRect.height = height - (i.bottom + viewRect.y); |
| 188 | |
| 189 | // layout the text and icon |
| 190 | SynthContext context = getContext(b); |
| 191 | FontMetrics fm = context.getComponent().getFontMetrics( |
| 192 | context.getStyle().getFont(context)); |
| 193 | context.getStyle().getGraphicsUtils(context).layoutText( |
| 194 | context, fm, b.getText(), b.getIcon(), |
| 195 | b.getHorizontalAlignment(), b.getVerticalAlignment(), |
| 196 | b.getHorizontalTextPosition(), b.getVerticalTextPosition(), |
| 197 | viewRect, iconRect, textRect, b.getIconTextGap()); |
| 198 | View view = (View)b.getClientProperty(BasicHTML.propertyKey); |
| 199 | int baseline; |
| 200 | if (view != null) { |
| 201 | baseline = BasicHTML.getHTMLBaseline(view, textRect.width, |
| 202 | textRect.height); |
| 203 | if (baseline >= 0) { |
| 204 | baseline += textRect.y; |
| 205 | } |
| 206 | } |
| 207 | else { |
| 208 | baseline = textRect.y + fm.getAscent(); |
| 209 | } |
| 210 | context.dispose(); |
| 211 | return baseline; |
| 212 | } |
| 213 | |
| 214 | // ******************************** |
| 215 | // Paint Methods |
| 216 | // ******************************** |
| 217 | |
| 218 | public void update(Graphics g, JComponent c) { |
| 219 | SynthContext context = getContext(c); |
| 220 | |
| 221 | SynthLookAndFeel.update(context, g); |
| 222 | paintBackground(context, g, c); |
| 223 | paint(context, g); |
| 224 | context.dispose(); |
| 225 | } |
| 226 | |
| 227 | public void paint(Graphics g, JComponent c) { |
| 228 | SynthContext context = getContext(c); |
| 229 | |
| 230 | paint(context, g); |
| 231 | context.dispose(); |
| 232 | } |
| 233 | |
| 234 | protected void paint(SynthContext context, Graphics g) { |
| 235 | AbstractButton b = (AbstractButton)context.getComponent(); |
| 236 | |
| 237 | g.setColor(context.getStyle().getColor(context, |
| 238 | ColorType.TEXT_FOREGROUND)); |
| 239 | g.setFont(style.getFont(context)); |
| 240 | context.getStyle().getGraphicsUtils(context).paintText( |
| 241 | context, g, b.getText(), getIcon(b), |
| 242 | b.getHorizontalAlignment(), b.getVerticalAlignment(), |
| 243 | b.getHorizontalTextPosition(), b.getVerticalTextPosition(), |
| 244 | b.getIconTextGap(), b.getDisplayedMnemonicIndex(), |
| 245 | getTextShiftOffset(context)); |
| 246 | } |
| 247 | |
| 248 | void paintBackground(SynthContext context, Graphics g, JComponent c) { |
| 249 | if (((AbstractButton) c).isContentAreaFilled()) { |
| 250 | context.getPainter().paintButtonBackground(context, g, 0, 0, |
| 251 | c.getWidth(), |
| 252 | c.getHeight()); |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | public void paintBorder(SynthContext context, Graphics g, int x, |
| 257 | int y, int w, int h) { |
| 258 | context.getPainter().paintButtonBorder(context, g, x, y, w, h); |
| 259 | } |
| 260 | |
| 261 | /** |
| 262 | * Returns the default icon. This should NOT callback |
| 263 | * to the JComponent. |
| 264 | * |
| 265 | * @param b AbstractButton the iocn is associated with |
| 266 | * @return default icon |
| 267 | */ |
| 268 | |
| 269 | protected Icon getDefaultIcon(AbstractButton b) { |
| 270 | SynthContext context = getContext(b); |
| 271 | Icon icon = context.getStyle().getIcon(context, getPropertyPrefix() + "icon"); |
| 272 | context.dispose(); |
| 273 | return icon; |
| 274 | } |
| 275 | |
| 276 | /** |
| 277 | * Returns the Icon to use in painting the button. |
| 278 | */ |
| 279 | protected Icon getIcon(AbstractButton b) { |
| 280 | Icon icon = b.getIcon(); |
| 281 | ButtonModel model = b.getModel(); |
| 282 | |
| 283 | if (!model.isEnabled()) { |
| 284 | icon = getSynthDisabledIcon(b, icon); |
| 285 | } else if (model.isPressed() && model.isArmed()) { |
| 286 | icon = getPressedIcon(b, getSelectedIcon(b, icon)); |
| 287 | } else if (b.isRolloverEnabled() && model.isRollover()) { |
| 288 | icon = getRolloverIcon(b, getSelectedIcon(b, icon)); |
| 289 | } else if (model.isSelected()) { |
| 290 | icon = getSelectedIcon(b, icon); |
| 291 | } else { |
| 292 | icon = getEnabledIcon(b, icon); |
| 293 | } |
| 294 | if(icon == null) { |
| 295 | return getDefaultIcon(b); |
| 296 | } |
| 297 | return icon; |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * This method will return the icon that should be used for a button. We |
| 302 | * only want to use the synth icon defined by the style if the specific |
| 303 | * icon has not been defined for the button state and the backup icon is a |
| 304 | * UIResource (we set it, not the developer). |
| 305 | * |
| 306 | * @param b button |
| 307 | * @param specificIcon icon returned from the button for the specific state |
| 308 | * @param defaultIcon fallback icon |
| 309 | * @param state the synth state of the button |
| 310 | */ |
| 311 | private Icon getIcon(AbstractButton b, Icon specificIcon, Icon defaultIcon, |
| 312 | int state) { |
| 313 | Icon icon = specificIcon; |
| 314 | if (icon == null) { |
| 315 | if (defaultIcon instanceof UIResource) { |
| 316 | icon = getSynthIcon(b, state); |
| 317 | if (icon == null) { |
| 318 | icon = defaultIcon; |
| 319 | } |
| 320 | } else { |
| 321 | icon = defaultIcon; |
| 322 | } |
| 323 | } |
| 324 | return icon; |
| 325 | } |
| 326 | |
| 327 | private Icon getSynthIcon(AbstractButton b, int synthConstant) { |
| 328 | return style.getIcon(getContext(b, synthConstant), getPropertyPrefix() + "icon"); |
| 329 | } |
| 330 | |
| 331 | private Icon getEnabledIcon(AbstractButton b, Icon defaultIcon) { |
| 332 | if (defaultIcon == null) { |
| 333 | defaultIcon = getSynthIcon(b, SynthConstants.ENABLED); |
| 334 | } |
| 335 | return defaultIcon; |
| 336 | } |
| 337 | |
| 338 | private Icon getSelectedIcon(AbstractButton b, Icon defaultIcon) { |
| 339 | return getIcon(b, b.getSelectedIcon(), defaultIcon, |
| 340 | SynthConstants.SELECTED); |
| 341 | } |
| 342 | |
| 343 | private Icon getRolloverIcon(AbstractButton b, Icon defaultIcon) { |
| 344 | ButtonModel model = b.getModel(); |
| 345 | Icon icon; |
| 346 | if (model.isSelected()) { |
| 347 | icon = getIcon(b, b.getRolloverSelectedIcon(), defaultIcon, |
| 348 | SynthConstants.MOUSE_OVER | SynthConstants.SELECTED); |
| 349 | } else { |
| 350 | icon = getIcon(b, b.getRolloverIcon(), defaultIcon, |
| 351 | SynthConstants.MOUSE_OVER); |
| 352 | } |
| 353 | return icon; |
| 354 | } |
| 355 | |
| 356 | private Icon getPressedIcon(AbstractButton b, Icon defaultIcon) { |
| 357 | return getIcon(b, b.getPressedIcon(), defaultIcon, |
| 358 | SynthConstants.PRESSED); |
| 359 | } |
| 360 | |
| 361 | private Icon getSynthDisabledIcon(AbstractButton b, Icon defaultIcon) { |
| 362 | ButtonModel model = b.getModel(); |
| 363 | Icon icon; |
| 364 | if (model.isSelected()) { |
| 365 | icon = getIcon(b, b.getDisabledSelectedIcon(), defaultIcon, |
| 366 | SynthConstants.DISABLED | SynthConstants.SELECTED); |
| 367 | } else { |
| 368 | icon = getIcon(b, b.getDisabledIcon(), defaultIcon, |
| 369 | SynthConstants.DISABLED); |
| 370 | } |
| 371 | return icon; |
| 372 | } |
| 373 | |
| 374 | /** |
| 375 | * Returns the amount to shift the text/icon when painting. |
| 376 | */ |
| 377 | protected int getTextShiftOffset(SynthContext state) { |
| 378 | AbstractButton button = (AbstractButton)state.getComponent(); |
| 379 | ButtonModel model = button.getModel(); |
| 380 | |
| 381 | if (model.isArmed() && model.isPressed() && |
| 382 | button.getPressedIcon() == null) { |
| 383 | return state.getStyle().getInt(state, getPropertyPrefix() + |
| 384 | "textShiftOffset", 0); |
| 385 | } |
| 386 | return 0; |
| 387 | } |
| 388 | |
| 389 | // ******************************** |
| 390 | // Layout Methods |
| 391 | // ******************************** |
| 392 | public Dimension getMinimumSize(JComponent c) { |
| 393 | if (c.getComponentCount() > 0 && c.getLayout() != null) { |
| 394 | return null; |
| 395 | } |
| 396 | AbstractButton b = (AbstractButton)c; |
| 397 | SynthContext ss = getContext(c); |
| 398 | Dimension size = ss.getStyle().getGraphicsUtils(ss).getMinimumSize( |
| 399 | ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b), |
| 400 | b.getHorizontalAlignment(), b.getVerticalAlignment(), |
| 401 | b.getHorizontalTextPosition(), |
| 402 | b.getVerticalTextPosition(), b.getIconTextGap(), |
| 403 | b.getDisplayedMnemonicIndex()); |
| 404 | |
| 405 | ss.dispose(); |
| 406 | return size; |
| 407 | } |
| 408 | |
| 409 | public Dimension getPreferredSize(JComponent c) { |
| 410 | if (c.getComponentCount() > 0 && c.getLayout() != null) { |
| 411 | return null; |
| 412 | } |
| 413 | AbstractButton b = (AbstractButton)c; |
| 414 | SynthContext ss = getContext(c); |
| 415 | Dimension size = ss.getStyle().getGraphicsUtils(ss).getPreferredSize( |
| 416 | ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b), |
| 417 | b.getHorizontalAlignment(), b.getVerticalAlignment(), |
| 418 | b.getHorizontalTextPosition(), |
| 419 | b.getVerticalTextPosition(), b.getIconTextGap(), |
| 420 | b.getDisplayedMnemonicIndex()); |
| 421 | |
| 422 | ss.dispose(); |
| 423 | return size; |
| 424 | } |
| 425 | |
| 426 | public Dimension getMaximumSize(JComponent c) { |
| 427 | if (c.getComponentCount() > 0 && c.getLayout() != null) { |
| 428 | return null; |
| 429 | } |
| 430 | |
| 431 | AbstractButton b = (AbstractButton)c; |
| 432 | SynthContext ss = getContext(c); |
| 433 | Dimension size = ss.getStyle().getGraphicsUtils(ss).getMaximumSize( |
| 434 | ss, ss.getStyle().getFont(ss), b.getText(), getSizingIcon(b), |
| 435 | b.getHorizontalAlignment(), b.getVerticalAlignment(), |
| 436 | b.getHorizontalTextPosition(), |
| 437 | b.getVerticalTextPosition(), b.getIconTextGap(), |
| 438 | b.getDisplayedMnemonicIndex()); |
| 439 | |
| 440 | ss.dispose(); |
| 441 | return size; |
| 442 | } |
| 443 | |
| 444 | /** |
| 445 | * Returns the Icon used in calculating the pref/min/max size. |
| 446 | */ |
| 447 | protected Icon getSizingIcon(AbstractButton b) { |
| 448 | // NOTE: this is slightly different than BasicButtonUI, where it |
| 449 | // would just use getIcon, but this should be ok. |
| 450 | Icon icon = (b.isEnabled()) ? b.getIcon() : b.getDisabledIcon(); |
| 451 | if (icon == null) { |
| 452 | icon = getDefaultIcon(b); |
| 453 | } |
| 454 | return icon; |
| 455 | } |
| 456 | |
| 457 | public void propertyChange(PropertyChangeEvent e) { |
| 458 | if (SynthLookAndFeel.shouldUpdateStyle(e)) { |
| 459 | updateStyle((AbstractButton)e.getSource()); |
| 460 | } |
| 461 | } |
| 462 | } |