J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2007 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. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 6296064 6521533 |
| 27 | * @summary A simple manual test for visual verification of GradientPaint |
| 28 | * LinearGradientPaint, and RadialGradientPaint. |
| 29 | * @run main/manual MultiGradientTest |
| 30 | * @author campbelc |
| 31 | */ |
| 32 | |
| 33 | import java.awt.BorderLayout; |
| 34 | import java.awt.Color; |
| 35 | import java.awt.Dimension; |
| 36 | import java.awt.GradientPaint; |
| 37 | import java.awt.Graphics; |
| 38 | import java.awt.Graphics2D; |
| 39 | import java.awt.LinearGradientPaint; |
| 40 | import java.awt.MultipleGradientPaint.ColorSpaceType; |
| 41 | import java.awt.MultipleGradientPaint.CycleMethod; |
| 42 | import java.awt.Paint; |
| 43 | import java.awt.Polygon; |
| 44 | import java.awt.RadialGradientPaint; |
| 45 | import java.awt.Rectangle; |
| 46 | import java.awt.RenderingHints; |
| 47 | import java.awt.geom.AffineTransform; |
| 48 | import java.awt.geom.NoninvertibleTransformException; |
| 49 | import java.awt.geom.Point2D; |
| 50 | import java.awt.event.ActionEvent; |
| 51 | import java.awt.event.ActionListener; |
| 52 | import java.awt.event.MouseAdapter; |
| 53 | import java.awt.event.MouseEvent; |
| 54 | import java.awt.event.WindowAdapter; |
| 55 | import java.awt.event.WindowEvent; |
| 56 | import java.util.Arrays; |
| 57 | import java.util.ArrayList; |
| 58 | import java.util.EnumSet; |
| 59 | import java.util.List; |
| 60 | import javax.swing.AbstractListModel; |
| 61 | import javax.swing.BoxLayout; |
| 62 | import javax.swing.ComboBoxModel; |
| 63 | import javax.swing.JCheckBox; |
| 64 | import javax.swing.JComboBox; |
| 65 | import javax.swing.JFrame; |
| 66 | import javax.swing.JLabel; |
| 67 | import javax.swing.JPanel; |
| 68 | import javax.swing.JSpinner; |
| 69 | import javax.swing.SpinnerNumberModel; |
| 70 | import javax.swing.event.ChangeEvent; |
| 71 | import javax.swing.event.ChangeListener; |
| 72 | |
| 73 | public class MultiGradientTest extends JPanel { |
| 74 | |
| 75 | private static final Color[] COLORS = { |
| 76 | new Color(0, 0, 0), |
| 77 | new Color(128, 128, 128), |
| 78 | new Color(255, 0, 0), |
| 79 | new Color(255, 255, 0), |
| 80 | new Color(0, 255, 0), |
| 81 | new Color(0, 255, 255), |
| 82 | new Color(128, 0, 255), |
| 83 | new Color(128, 128, 128), |
| 84 | }; |
| 85 | |
| 86 | private static enum PaintType {BASIC, LINEAR, RADIAL}; |
| 87 | private static enum ShapeType {RECT, ELLIPSE, MULTIPLE}; |
| 88 | private static enum XformType {IDENTITY, TRANSLATE, SCALE, SHEAR, ROTATE}; |
| 89 | |
| 90 | private PaintType paintType = PaintType.LINEAR; |
| 91 | private ShapeType shapeType = ShapeType.RECT; |
| 92 | private XformType xformType = XformType.IDENTITY; |
| 93 | private CycleMethod cycleMethod = CycleMethod.NO_CYCLE; |
| 94 | private ColorSpaceType colorSpace = ColorSpaceType.SRGB; |
| 95 | private Object antialiasHint = RenderingHints.VALUE_ANTIALIAS_OFF; |
| 96 | private Object renderHint = RenderingHints.VALUE_RENDER_SPEED; |
| 97 | private AffineTransform transform = new AffineTransform(); |
| 98 | |
| 99 | private int numColors; |
| 100 | |
| 101 | private GradientPanel gradientPanel; |
| 102 | private ControlsPanel controlsPanel; |
| 103 | |
| 104 | private MultiGradientTest() { |
| 105 | numColors = COLORS.length; |
| 106 | |
| 107 | setLayout(new BorderLayout()); |
| 108 | gradientPanel = new GradientPanel(); |
| 109 | add(gradientPanel, BorderLayout.CENTER); |
| 110 | controlsPanel = new ControlsPanel(); |
| 111 | add(controlsPanel, BorderLayout.SOUTH); |
| 112 | } |
| 113 | |
| 114 | private class GradientPanel extends JPanel { |
| 115 | private int startX, startY, endX, endY; |
| 116 | private int ctrX, ctrY, focusX, focusY; |
| 117 | private float radius; |
| 118 | private Paint paint; |
| 119 | |
| 120 | private GradientPanel() { |
| 121 | startX = 20; |
| 122 | startY = 20; |
| 123 | endX = 100; |
| 124 | endY = 100; |
| 125 | ctrX = 100; |
| 126 | ctrY = 100; |
| 127 | focusX = 100; |
| 128 | focusY = 100; |
| 129 | radius = 100.0f; |
| 130 | |
| 131 | makeNewPaint(); |
| 132 | |
| 133 | MouseAdapter l = new MyMouseAdapter(); |
| 134 | addMouseListener(l); |
| 135 | addMouseMotionListener(l); |
| 136 | } |
| 137 | |
| 138 | public void paintComponent(Graphics g) { |
| 139 | Graphics2D g2d = (Graphics2D)g.create(); |
| 140 | |
| 141 | int w = getWidth(); |
| 142 | int h = getHeight(); |
| 143 | g2d.setColor(Color.black); |
| 144 | g2d.fillRect(0, 0, w, h); |
| 145 | |
| 146 | g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, |
| 147 | antialiasHint); |
| 148 | g2d.setRenderingHint(RenderingHints.KEY_RENDERING, |
| 149 | renderHint); |
| 150 | |
| 151 | g2d.transform(transform); |
| 152 | g2d.setPaint(paint); |
| 153 | |
| 154 | switch (shapeType) { |
| 155 | default: |
| 156 | case RECT: |
| 157 | g2d.fillRect(0, 0, w, h); |
| 158 | break; |
| 159 | |
| 160 | case ELLIPSE: |
| 161 | g2d.fillOval(0, 0, w, h); |
| 162 | break; |
| 163 | |
| 164 | case MULTIPLE: |
| 165 | g2d.fillRect(0, 0, w/2, h/2); |
| 166 | g2d.fillOval(w/2, 0, w/2, h/2); |
| 167 | g2d.drawOval(0, h/2, w/2, h/2); |
| 168 | g2d.drawLine(0, h/2, w/2, h); |
| 169 | g2d.drawLine(0, h, w/2, h/2); |
| 170 | Polygon p = new Polygon(); |
| 171 | p.addPoint(w/2, h); |
| 172 | p.addPoint(w, h); |
| 173 | p.addPoint(3*w/4, h/2); |
| 174 | g2d.fillPolygon(p); |
| 175 | break; |
| 176 | } |
| 177 | |
| 178 | switch (paintType) { |
| 179 | default: |
| 180 | case BASIC: |
| 181 | case LINEAR: |
| 182 | g2d.setColor(Color.white); |
| 183 | g2d.fillRect(startX-1, startY-1, 2, 2); |
| 184 | g2d.drawString("1", startX, startY + 12); |
| 185 | g2d.fillRect(endX-1, endY-1, 2, 2); |
| 186 | g2d.drawString("2", endX, endY + 12); |
| 187 | break; |
| 188 | |
| 189 | case RADIAL: |
| 190 | g2d.setColor(Color.white); |
| 191 | g2d.fillRect(ctrX-1, ctrY-1, 2, 2); |
| 192 | g2d.drawString("C", ctrX, ctrY + 12); |
| 193 | g2d.fillRect(focusX-1, focusY-1, 2, 2); |
| 194 | g2d.drawString("F", focusX, focusY + 12); |
| 195 | break; |
| 196 | } |
| 197 | |
| 198 | g2d.dispose(); |
| 199 | } |
| 200 | |
| 201 | private void updatePoints(int x, int y) { |
| 202 | Point2D inv = new Point2D.Double(x, y); |
| 203 | |
| 204 | try { |
| 205 | inv = transform.inverseTransform(inv, null); |
| 206 | } catch (NoninvertibleTransformException e) { |
| 207 | e.printStackTrace(); |
| 208 | } |
| 209 | |
| 210 | x = (int)inv.getX(); |
| 211 | y = (int)inv.getY(); |
| 212 | |
| 213 | switch (paintType) { |
| 214 | default: |
| 215 | case BASIC: |
| 216 | case LINEAR: |
| 217 | // pick the closest point to move |
| 218 | if (inv.distance(startX, startY) < inv.distance(endX, endY)) { |
| 219 | startX = x; |
| 220 | startY = y; |
| 221 | } else { |
| 222 | endX = x; |
| 223 | endY = y; |
| 224 | } |
| 225 | break; |
| 226 | |
| 227 | case RADIAL: |
| 228 | // pick the closest point to move |
| 229 | if (inv.distance(ctrX, ctrY) < inv.distance(focusX, focusY)) { |
| 230 | ctrX = x; |
| 231 | ctrY = y; |
| 232 | } else { |
| 233 | focusX = x; |
| 234 | focusY = y; |
| 235 | } |
| 236 | break; |
| 237 | } |
| 238 | |
| 239 | updatePaint(); |
| 240 | } |
| 241 | |
| 242 | private void makeNewPaint() { |
| 243 | Color[] colors = Arrays.copyOf(COLORS, numColors); |
| 244 | float[] fractions = new float[colors.length]; |
| 245 | for (int i = 0; i < fractions.length; i++) { |
| 246 | fractions[i] = ((float)i) / (fractions.length-1); |
| 247 | } |
| 248 | |
| 249 | switch (paintType) { |
| 250 | case BASIC: |
| 251 | boolean cyclic = (cycleMethod != CycleMethod.NO_CYCLE); |
| 252 | paint = new GradientPaint(startX, startY, Color.RED, |
| 253 | endX, endY, Color.BLUE, cyclic); |
| 254 | break; |
| 255 | |
| 256 | default: |
| 257 | case LINEAR: |
| 258 | paint = |
| 259 | new LinearGradientPaint(new Point2D.Float(startX, startY), |
| 260 | new Point2D.Float(endX, endY), |
| 261 | fractions, colors, |
| 262 | cycleMethod, colorSpace, |
| 263 | new AffineTransform()); |
| 264 | break; |
| 265 | |
| 266 | case RADIAL: |
| 267 | paint = |
| 268 | new RadialGradientPaint(new Point2D.Float(ctrX, ctrY), |
| 269 | radius, |
| 270 | new Point2D.Float(focusX, focusY), |
| 271 | fractions, colors, |
| 272 | cycleMethod, colorSpace, |
| 273 | new AffineTransform()); |
| 274 | break; |
| 275 | } |
| 276 | |
| 277 | switch (xformType) { |
| 278 | default: |
| 279 | case IDENTITY: |
| 280 | transform = new AffineTransform(); |
| 281 | break; |
| 282 | case TRANSLATE: |
| 283 | transform = AffineTransform.getTranslateInstance(2, 2); |
| 284 | break; |
| 285 | case SCALE: |
| 286 | transform = AffineTransform.getScaleInstance(1.2, 1.4); |
| 287 | break; |
| 288 | case SHEAR: |
| 289 | transform = AffineTransform.getShearInstance(0.1, 0.1); |
| 290 | break; |
| 291 | case ROTATE: |
| 292 | transform = AffineTransform.getRotateInstance(Math.PI / 4, |
| 293 | getWidth()/2, |
| 294 | getHeight()/2); |
| 295 | break; |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | public void updatePaint() { |
| 300 | makeNewPaint(); |
| 301 | repaint(); |
| 302 | } |
| 303 | |
| 304 | private class MyMouseAdapter extends MouseAdapter { |
| 305 | @Override |
| 306 | public void mouseClicked(MouseEvent e) { |
| 307 | updatePoints(e.getX(), e.getY()); |
| 308 | } |
| 309 | |
| 310 | @Override |
| 311 | public void mouseDragged(MouseEvent e) { |
| 312 | updatePoints(e.getX(), e.getY()); |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | public Dimension getPreferredSize() { |
| 317 | return new Dimension(400, 400); |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | private class ControlsPanel extends JPanel implements ActionListener { |
| 322 | private JComboBox cmbPaint, cmbCycle, cmbSpace, cmbShape, cmbXform; |
| 323 | private JCheckBox cbAntialias, cbRender; |
| 324 | private JSpinner spinNumColors; |
| 325 | |
| 326 | private ControlsPanel() { |
| 327 | cmbPaint = createCombo(this, paintType); |
| 328 | cmbPaint.setSelectedIndex(1); |
| 329 | cmbCycle = createCombo(this, cycleMethod); |
| 330 | cmbSpace = createCombo(this, colorSpace); |
| 331 | cmbShape = createCombo(this, shapeType); |
| 332 | cmbXform = createCombo(this, xformType); |
| 333 | |
| 334 | int max = COLORS.length; |
| 335 | SpinnerNumberModel model = new SpinnerNumberModel(max, 2, max, 1); |
| 336 | spinNumColors = new JSpinner(model); |
| 337 | spinNumColors.addChangeListener(new ChangeListener() { |
| 338 | public void stateChanged(ChangeEvent e) { |
| 339 | numColors = ((Integer)spinNumColors.getValue()).intValue(); |
| 340 | gradientPanel.updatePaint(); |
| 341 | } |
| 342 | }); |
| 343 | add(spinNumColors); |
| 344 | |
| 345 | cbAntialias = createCheck(this, "Antialiasing"); |
| 346 | cbRender = createCheck(this, "Render Quality"); |
| 347 | } |
| 348 | |
| 349 | private JComboBox createCombo(JPanel panel, Enum e) { |
| 350 | JComboBox cmb = new JComboBox(); |
| 351 | cmb.setModel(new EnumComboBoxModel(e.getClass())); |
| 352 | cmb.addActionListener(this); |
| 353 | panel.add(cmb); |
| 354 | return cmb; |
| 355 | } |
| 356 | |
| 357 | private JCheckBox createCheck(JPanel panel, String name) { |
| 358 | JCheckBox cb = new JCheckBox(name); |
| 359 | cb.addActionListener(this); |
| 360 | panel.add(cb); |
| 361 | return cb; |
| 362 | } |
| 363 | |
| 364 | public void actionPerformed(ActionEvent e) { |
| 365 | Object source = e.getSource(); |
| 366 | |
| 367 | if (source == cmbPaint) { |
| 368 | paintType = (PaintType)cmbPaint.getSelectedItem(); |
| 369 | } else if (source == cmbCycle) { |
| 370 | cycleMethod = (CycleMethod)cmbCycle.getSelectedItem(); |
| 371 | } else if (source == cmbSpace) { |
| 372 | colorSpace = (ColorSpaceType)cmbSpace.getSelectedItem(); |
| 373 | } else if (source == cmbShape) { |
| 374 | shapeType = (ShapeType)cmbShape.getSelectedItem(); |
| 375 | } else if (source == cmbXform) { |
| 376 | xformType = (XformType)cmbXform.getSelectedItem(); |
| 377 | } else if (source == cbAntialias) { |
| 378 | antialiasHint = cbAntialias.isSelected() ? |
| 379 | RenderingHints.VALUE_ANTIALIAS_ON : |
| 380 | RenderingHints.VALUE_ANTIALIAS_OFF; |
| 381 | } else if (source == cbRender) { |
| 382 | renderHint = cbRender.isSelected() ? |
| 383 | RenderingHints.VALUE_RENDER_QUALITY : |
| 384 | RenderingHints.VALUE_RENDER_SPEED; |
| 385 | } |
| 386 | |
| 387 | gradientPanel.updatePaint(); |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | private static class EnumComboBoxModel<E extends Enum<E>> |
| 392 | extends AbstractListModel |
| 393 | implements ComboBoxModel |
| 394 | { |
| 395 | private E selected = null; |
| 396 | private List<E> list; |
| 397 | |
| 398 | public EnumComboBoxModel(Class<E> en) { |
| 399 | EnumSet<E> ens = EnumSet.allOf(en); |
| 400 | list = new ArrayList<E>(ens); |
| 401 | selected = list.get(0); |
| 402 | } |
| 403 | |
| 404 | public int getSize() { |
| 405 | return list.size(); |
| 406 | } |
| 407 | |
| 408 | public E getElementAt(int index) { |
| 409 | return list.get(index); |
| 410 | } |
| 411 | |
| 412 | public void setSelectedItem(Object anItem) { |
| 413 | selected = (E)anItem; |
| 414 | this.fireContentsChanged(this, 0, getSize()); |
| 415 | } |
| 416 | |
| 417 | public E getSelectedItem() { |
| 418 | return selected; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | public static void main(String[] args) { |
| 423 | final JFrame frame = new JFrame("Multistop Gradient Demo"); |
| 424 | frame.addWindowListener(new WindowAdapter() { |
| 425 | public void windowClosing(WindowEvent e) { |
| 426 | frame.dispose(); |
| 427 | } |
| 428 | }); |
| 429 | frame.add(new MultiGradientTest()); |
| 430 | frame.pack(); |
| 431 | frame.setLocationRelativeTo(null); |
| 432 | frame.setVisible(true); |
| 433 | } |
| 434 | } |