| /* |
| * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6296064 6521533 |
| * @summary A simple manual test for visual verification of GradientPaint |
| * LinearGradientPaint, and RadialGradientPaint. |
| * @run main/manual MultiGradientTest |
| * @author campbelc |
| */ |
| |
| import java.awt.BorderLayout; |
| import java.awt.Color; |
| import java.awt.Dimension; |
| import java.awt.GradientPaint; |
| import java.awt.Graphics; |
| import java.awt.Graphics2D; |
| import java.awt.LinearGradientPaint; |
| import java.awt.MultipleGradientPaint.ColorSpaceType; |
| import java.awt.MultipleGradientPaint.CycleMethod; |
| import java.awt.Paint; |
| import java.awt.Polygon; |
| import java.awt.RadialGradientPaint; |
| import java.awt.Rectangle; |
| import java.awt.RenderingHints; |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.NoninvertibleTransformException; |
| import java.awt.geom.Point2D; |
| import java.awt.event.ActionEvent; |
| import java.awt.event.ActionListener; |
| import java.awt.event.MouseAdapter; |
| import java.awt.event.MouseEvent; |
| import java.awt.event.WindowAdapter; |
| import java.awt.event.WindowEvent; |
| import java.util.Arrays; |
| import java.util.ArrayList; |
| import java.util.EnumSet; |
| import java.util.List; |
| import javax.swing.AbstractListModel; |
| import javax.swing.BoxLayout; |
| import javax.swing.ComboBoxModel; |
| import javax.swing.JCheckBox; |
| import javax.swing.JComboBox; |
| import javax.swing.JFrame; |
| import javax.swing.JLabel; |
| import javax.swing.JPanel; |
| import javax.swing.JSpinner; |
| import javax.swing.SpinnerNumberModel; |
| import javax.swing.event.ChangeEvent; |
| import javax.swing.event.ChangeListener; |
| |
| public class MultiGradientTest extends JPanel { |
| |
| private static final Color[] COLORS = { |
| new Color(0, 0, 0), |
| new Color(128, 128, 128), |
| new Color(255, 0, 0), |
| new Color(255, 255, 0), |
| new Color(0, 255, 0), |
| new Color(0, 255, 255), |
| new Color(128, 0, 255), |
| new Color(128, 128, 128), |
| }; |
| |
| private static enum PaintType {BASIC, LINEAR, RADIAL}; |
| private static enum ShapeType {RECT, ELLIPSE, MULTIPLE}; |
| private static enum XformType {IDENTITY, TRANSLATE, SCALE, SHEAR, ROTATE}; |
| |
| private PaintType paintType = PaintType.LINEAR; |
| private ShapeType shapeType = ShapeType.RECT; |
| private XformType xformType = XformType.IDENTITY; |
| private CycleMethod cycleMethod = CycleMethod.NO_CYCLE; |
| private ColorSpaceType colorSpace = ColorSpaceType.SRGB; |
| private Object antialiasHint = RenderingHints.VALUE_ANTIALIAS_OFF; |
| private Object renderHint = RenderingHints.VALUE_RENDER_SPEED; |
| private AffineTransform transform = new AffineTransform(); |
| |
| private int numColors; |
| |
| private GradientPanel gradientPanel; |
| private ControlsPanel controlsPanel; |
| |
| private MultiGradientTest() { |
| numColors = COLORS.length; |
| |
| setLayout(new BorderLayout()); |
| gradientPanel = new GradientPanel(); |
| add(gradientPanel, BorderLayout.CENTER); |
| controlsPanel = new ControlsPanel(); |
| add(controlsPanel, BorderLayout.SOUTH); |
| } |
| |
| private class GradientPanel extends JPanel { |
| private int startX, startY, endX, endY; |
| private int ctrX, ctrY, focusX, focusY; |
| private float radius; |
| private Paint paint; |
| |
| private GradientPanel() { |
| startX = 20; |
| startY = 20; |
| endX = 100; |
| endY = 100; |
| ctrX = 100; |
| ctrY = 100; |
| focusX = 100; |
| focusY = 100; |
| radius = 100.0f; |
| |
| makeNewPaint(); |
| |
| MouseAdapter l = new MyMouseAdapter(); |
| addMouseListener(l); |
| addMouseMotionListener(l); |
| } |
| |
| public void paintComponent(Graphics g) { |
| Graphics2D g2d = (Graphics2D)g.create(); |
| |
| int w = getWidth(); |
| int h = getHeight(); |
| g2d.setColor(Color.black); |
| g2d.fillRect(0, 0, w, h); |
| |
| g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, |
| antialiasHint); |
| g2d.setRenderingHint(RenderingHints.KEY_RENDERING, |
| renderHint); |
| |
| g2d.transform(transform); |
| g2d.setPaint(paint); |
| |
| switch (shapeType) { |
| default: |
| case RECT: |
| g2d.fillRect(0, 0, w, h); |
| break; |
| |
| case ELLIPSE: |
| g2d.fillOval(0, 0, w, h); |
| break; |
| |
| case MULTIPLE: |
| g2d.fillRect(0, 0, w/2, h/2); |
| g2d.fillOval(w/2, 0, w/2, h/2); |
| g2d.drawOval(0, h/2, w/2, h/2); |
| g2d.drawLine(0, h/2, w/2, h); |
| g2d.drawLine(0, h, w/2, h/2); |
| Polygon p = new Polygon(); |
| p.addPoint(w/2, h); |
| p.addPoint(w, h); |
| p.addPoint(3*w/4, h/2); |
| g2d.fillPolygon(p); |
| break; |
| } |
| |
| switch (paintType) { |
| default: |
| case BASIC: |
| case LINEAR: |
| g2d.setColor(Color.white); |
| g2d.fillRect(startX-1, startY-1, 2, 2); |
| g2d.drawString("1", startX, startY + 12); |
| g2d.fillRect(endX-1, endY-1, 2, 2); |
| g2d.drawString("2", endX, endY + 12); |
| break; |
| |
| case RADIAL: |
| g2d.setColor(Color.white); |
| g2d.fillRect(ctrX-1, ctrY-1, 2, 2); |
| g2d.drawString("C", ctrX, ctrY + 12); |
| g2d.fillRect(focusX-1, focusY-1, 2, 2); |
| g2d.drawString("F", focusX, focusY + 12); |
| break; |
| } |
| |
| g2d.dispose(); |
| } |
| |
| private void updatePoints(int x, int y) { |
| Point2D inv = new Point2D.Double(x, y); |
| |
| try { |
| inv = transform.inverseTransform(inv, null); |
| } catch (NoninvertibleTransformException e) { |
| e.printStackTrace(); |
| } |
| |
| x = (int)inv.getX(); |
| y = (int)inv.getY(); |
| |
| switch (paintType) { |
| default: |
| case BASIC: |
| case LINEAR: |
| // pick the closest point to move |
| if (inv.distance(startX, startY) < inv.distance(endX, endY)) { |
| startX = x; |
| startY = y; |
| } else { |
| endX = x; |
| endY = y; |
| } |
| break; |
| |
| case RADIAL: |
| // pick the closest point to move |
| if (inv.distance(ctrX, ctrY) < inv.distance(focusX, focusY)) { |
| ctrX = x; |
| ctrY = y; |
| } else { |
| focusX = x; |
| focusY = y; |
| } |
| break; |
| } |
| |
| updatePaint(); |
| } |
| |
| private void makeNewPaint() { |
| Color[] colors = Arrays.copyOf(COLORS, numColors); |
| float[] fractions = new float[colors.length]; |
| for (int i = 0; i < fractions.length; i++) { |
| fractions[i] = ((float)i) / (fractions.length-1); |
| } |
| |
| switch (paintType) { |
| case BASIC: |
| boolean cyclic = (cycleMethod != CycleMethod.NO_CYCLE); |
| paint = new GradientPaint(startX, startY, Color.RED, |
| endX, endY, Color.BLUE, cyclic); |
| break; |
| |
| default: |
| case LINEAR: |
| paint = |
| new LinearGradientPaint(new Point2D.Float(startX, startY), |
| new Point2D.Float(endX, endY), |
| fractions, colors, |
| cycleMethod, colorSpace, |
| new AffineTransform()); |
| break; |
| |
| case RADIAL: |
| paint = |
| new RadialGradientPaint(new Point2D.Float(ctrX, ctrY), |
| radius, |
| new Point2D.Float(focusX, focusY), |
| fractions, colors, |
| cycleMethod, colorSpace, |
| new AffineTransform()); |
| break; |
| } |
| |
| switch (xformType) { |
| default: |
| case IDENTITY: |
| transform = new AffineTransform(); |
| break; |
| case TRANSLATE: |
| transform = AffineTransform.getTranslateInstance(2, 2); |
| break; |
| case SCALE: |
| transform = AffineTransform.getScaleInstance(1.2, 1.4); |
| break; |
| case SHEAR: |
| transform = AffineTransform.getShearInstance(0.1, 0.1); |
| break; |
| case ROTATE: |
| transform = AffineTransform.getRotateInstance(Math.PI / 4, |
| getWidth()/2, |
| getHeight()/2); |
| break; |
| } |
| } |
| |
| public void updatePaint() { |
| makeNewPaint(); |
| repaint(); |
| } |
| |
| private class MyMouseAdapter extends MouseAdapter { |
| @Override |
| public void mouseClicked(MouseEvent e) { |
| updatePoints(e.getX(), e.getY()); |
| } |
| |
| @Override |
| public void mouseDragged(MouseEvent e) { |
| updatePoints(e.getX(), e.getY()); |
| } |
| } |
| |
| public Dimension getPreferredSize() { |
| return new Dimension(400, 400); |
| } |
| } |
| |
| private class ControlsPanel extends JPanel implements ActionListener { |
| private JComboBox cmbPaint, cmbCycle, cmbSpace, cmbShape, cmbXform; |
| private JCheckBox cbAntialias, cbRender; |
| private JSpinner spinNumColors; |
| |
| private ControlsPanel() { |
| cmbPaint = createCombo(this, paintType); |
| cmbPaint.setSelectedIndex(1); |
| cmbCycle = createCombo(this, cycleMethod); |
| cmbSpace = createCombo(this, colorSpace); |
| cmbShape = createCombo(this, shapeType); |
| cmbXform = createCombo(this, xformType); |
| |
| int max = COLORS.length; |
| SpinnerNumberModel model = new SpinnerNumberModel(max, 2, max, 1); |
| spinNumColors = new JSpinner(model); |
| spinNumColors.addChangeListener(new ChangeListener() { |
| public void stateChanged(ChangeEvent e) { |
| numColors = ((Integer)spinNumColors.getValue()).intValue(); |
| gradientPanel.updatePaint(); |
| } |
| }); |
| add(spinNumColors); |
| |
| cbAntialias = createCheck(this, "Antialiasing"); |
| cbRender = createCheck(this, "Render Quality"); |
| } |
| |
| private JComboBox createCombo(JPanel panel, Enum e) { |
| JComboBox cmb = new JComboBox(); |
| cmb.setModel(new EnumComboBoxModel(e.getClass())); |
| cmb.addActionListener(this); |
| panel.add(cmb); |
| return cmb; |
| } |
| |
| private JCheckBox createCheck(JPanel panel, String name) { |
| JCheckBox cb = new JCheckBox(name); |
| cb.addActionListener(this); |
| panel.add(cb); |
| return cb; |
| } |
| |
| public void actionPerformed(ActionEvent e) { |
| Object source = e.getSource(); |
| |
| if (source == cmbPaint) { |
| paintType = (PaintType)cmbPaint.getSelectedItem(); |
| } else if (source == cmbCycle) { |
| cycleMethod = (CycleMethod)cmbCycle.getSelectedItem(); |
| } else if (source == cmbSpace) { |
| colorSpace = (ColorSpaceType)cmbSpace.getSelectedItem(); |
| } else if (source == cmbShape) { |
| shapeType = (ShapeType)cmbShape.getSelectedItem(); |
| } else if (source == cmbXform) { |
| xformType = (XformType)cmbXform.getSelectedItem(); |
| } else if (source == cbAntialias) { |
| antialiasHint = cbAntialias.isSelected() ? |
| RenderingHints.VALUE_ANTIALIAS_ON : |
| RenderingHints.VALUE_ANTIALIAS_OFF; |
| } else if (source == cbRender) { |
| renderHint = cbRender.isSelected() ? |
| RenderingHints.VALUE_RENDER_QUALITY : |
| RenderingHints.VALUE_RENDER_SPEED; |
| } |
| |
| gradientPanel.updatePaint(); |
| } |
| } |
| |
| private static class EnumComboBoxModel<E extends Enum<E>> |
| extends AbstractListModel |
| implements ComboBoxModel |
| { |
| private E selected = null; |
| private List<E> list; |
| |
| public EnumComboBoxModel(Class<E> en) { |
| EnumSet<E> ens = EnumSet.allOf(en); |
| list = new ArrayList<E>(ens); |
| selected = list.get(0); |
| } |
| |
| public int getSize() { |
| return list.size(); |
| } |
| |
| public E getElementAt(int index) { |
| return list.get(index); |
| } |
| |
| public void setSelectedItem(Object anItem) { |
| selected = (E)anItem; |
| this.fireContentsChanged(this, 0, getSize()); |
| } |
| |
| public E getSelectedItem() { |
| return selected; |
| } |
| } |
| |
| public static void main(String[] args) { |
| final JFrame frame = new JFrame("Multistop Gradient Demo"); |
| frame.addWindowListener(new WindowAdapter() { |
| public void windowClosing(WindowEvent e) { |
| frame.dispose(); |
| } |
| }); |
| frame.add(new MultiGradientTest()); |
| frame.pack(); |
| frame.setLocationRelativeTo(null); |
| frame.setVisible(true); |
| } |
| } |