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This program demonstrates the effect of the various rendering hints.
/*
This program is a part of the companion code for Core Java 8th ed.
(http://horstmann.com/corejava)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.Insets;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ButtonGroup;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
/**
* This program demonstrates the effect of the various rendering hints.
*
* @version 1.10 2007-08-16
* @author Cay Horstmann
*/
public class RenderQualityTest {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new RenderQualityTestFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
}
/**
* This frame contains buttons to set rendering hints and an image that is drawn
* with the selected hints.
*/
class RenderQualityTestFrame extends JFrame {
public RenderQualityTestFrame() {
setTitle("RenderQualityTest");
setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
buttonBox = new JPanel();
buttonBox.setLayout(new GridBagLayout());
hints = new RenderingHints(null);
makeButtons("KEY_ANTIALIASING", "VALUE_ANTIALIAS_OFF", "VALUE_ANTIALIAS_ON");
makeButtons("KEY_TEXT_ANTIALIASING", "VALUE_TEXT_ANTIALIAS_OFF", "VALUE_TEXT_ANTIALIAS_ON");
makeButtons("KEY_FRACTIONALMETRICS", "VALUE_FRACTIONALMETRICS_OFF",
"VALUE_FRACTIONALMETRICS_ON");
makeButtons("KEY_RENDERING", "VALUE_RENDER_SPEED", "VALUE_RENDER_QUALITY");
makeButtons("KEY_STROKE_CONTROL", "VALUE_STROKE_PURE", "VALUE_STROKE_NORMALIZE");
canvas = new RenderQualityComponent();
canvas.setRenderingHints(hints);
add(canvas, BorderLayout.CENTER);
add(buttonBox, BorderLayout.NORTH);
}
/**
* Makes a set of buttons for a rendering hint key and values
*
* @param key
* the key name
* @param value1
* the name of the first value for the key
* @param value2
* the name of the second value for the key
*/
void makeButtons(String key, String value1, String value2) {
try {
final RenderingHints.Key k = (RenderingHints.Key) RenderingHints.class.getField(key)
.get(null);
final Object v1 = RenderingHints.class.getField(value1).get(null);
final Object v2 = RenderingHints.class.getField(value2).get(null);
JLabel label = new JLabel(key);
buttonBox.add(label, new GBC(0, r).setAnchor(GBC.WEST));
ButtonGroup group = new ButtonGroup();
JRadioButton b1 = new JRadioButton(value1, true);
buttonBox.add(b1, new GBC(1, r).setAnchor(GBC.WEST));
group.add(b1);
b1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
hints.put(k, v1);
canvas.setRenderingHints(hints);
}
});
JRadioButton b2 = new JRadioButton(value2, false);
buttonBox.add(b2, new GBC(2, r).setAnchor(GBC.WEST));
group.add(b2);
b2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
hints.put(k, v2);
canvas.setRenderingHints(hints);
}
});
hints.put(k, v1);
r++;
} catch (Exception e) {
e.printStackTrace();
}
}
private RenderQualityComponent canvas;
private JPanel buttonBox;
private RenderingHints hints;
private int r;
private static final int DEFAULT_WIDTH = 750;
private static final int DEFAULT_HEIGHT = 300;
}
/**
* This component produces a drawing that shows the effect of rendering hints.
*/
class RenderQualityComponent extends JComponent {
public RenderQualityComponent() {
try {
image = ImageIO.read(new File("face.gif"));
} catch (IOException e) {
e.printStackTrace();
}
}
public void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHints(hints);
g2.draw(new Ellipse2D.Double(10, 10, 60, 50));
g2.setFont(new Font("Serif", Font.ITALIC, 40));
g2.drawString("Hello", 75, 50);
g2.draw(new Rectangle2D.Double(200, 10, 40, 40));
g2.draw(new Line2D.Double(201, 11, 239, 49));
g2.drawImage(image, 250, 10, 100, 100, null);
}
/**
* Sets the hints and repaints.
*
* @param h
* the rendering hints
*/
public void setRenderingHints(RenderingHints h) {
hints = h;
repaint();
}
private RenderingHints hints = new RenderingHints(null);
private Image image;
}
/*
* This program is a part of the companion code for Core Java 8th ed.
* (http://horstmann.com/corejava)
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* This program 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 for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* GBC - A convenience class to tame the GridBagLayout
*
* Copyright (C) 2002 Cay S. Horstmann (http://horstmann.com)
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This program 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 for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* This class simplifies the use of the GridBagConstraints class.
*/
class GBC extends GridBagConstraints {
/**
* Constructs a GBC with a given gridx and gridy position and all other grid
* bag constraint values set to the default.
*
* @param gridx
* the gridx position
* @param gridy
* the gridy position
*/
public GBC(int gridx, int gridy) {
this.gridx = gridx;
this.gridy = gridy;
}
/**
* Constructs a GBC with given gridx, gridy, gridwidth, gridheight and all
* other grid bag constraint values set to the default.
*
* @param gridx
* the gridx position
* @param gridy
* the gridy position
* @param gridwidth
* the cell span in x-direction
* @param gridheight
* the cell span in y-direction
*/
public GBC(int gridx, int gridy, int gridwidth, int gridheight) {
this.gridx = gridx;
this.gridy = gridy;
this.gridwidth = gridwidth;
this.gridheight = gridheight;
}
/**
* Sets the anchor.
*
* @param anchor
* the anchor value
* @return this object for further modification
*/
public GBC setAnchor(int anchor) {
this.anchor = anchor;
return this;
}
/**
* Sets the fill direction.
*
* @param fill
* the fill direction
* @return this object for further modification
*/
public GBC setFill(int fill) {
this.fill = fill;
return this;
}
/**
* Sets the cell weights.
*
* @param weightx
* the cell weight in x-direction
* @param weighty
* the cell weight in y-direction
* @return this object for further modification
*/
public GBC setWeight(double weightx, double weighty) {
this.weightx = weightx;
this.weighty = weighty;
return this;
}
/**
* Sets the insets of this cell.
*
* @param distance
* the spacing to use in all directions
* @return this object for further modification
*/
public GBC setInsets(int distance) {
this.insets = new Insets(distance, distance, distance, distance);
return this;
}
/**
* Sets the insets of this cell.
*
* @param top
* the spacing to use on top
* @param left
* the spacing to use to the left
* @param bottom
* the spacing to use on the bottom
* @param right
* the spacing to use to the right
* @return this object for further modification
*/
public GBC setInsets(int top, int left, int bottom, int right) {
this.insets = new Insets(top, left, bottom, right);
return this;
}
/**
* Sets the internal padding
*
* @param ipadx
* the internal padding in x-direction
* @param ipady
* the internal padding in y-direction
* @return this object for further modification
*/
public GBC setIpad(int ipadx, int ipady) {
this.ipadx = ipadx;
this.ipady = ipady;
return this;
}
}
