edu.mines.jtk.bench.AwtBench Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of edu-mines-jtk Show documentation
Show all versions of edu-mines-jtk Show documentation
Java packages for science and engineering
The newest version!
/****************************************************************************
Copyright 2004, Colorado School of Mines and others.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
****************************************************************************/
package edu.mines.jtk.bench;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.*;
//import edu.mines.jtk.util.Stopwatch;
/**
* AWT/Swing workbench.
* @author Dave Hale, Colorado School of Mines
* @version 2004.11.14
*/
public class AwtBench {
public static void main(String[] args) {
testImage();
//benchPrimitives();
}
public static void testImage() {
Dimension panelSize = new Dimension(600,600);
ImagePanel panel = new ImagePanel();
panel.setSize(panelSize);
panel.setPreferredSize(panelSize);
panel.setBackground(Color.WHITE);
BufferedImage image = panel.paintToImage(300,3);
writeToPng(image,"ImageAWT.png");
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(panel);
frame.pack();
frame.setVisible(true);
}
private static class ImagePanel extends JPanel {
private static final long serialVersionUID = 1L;
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D)g;
int width = getWidth();
int height = getHeight();
g2d.setColor(Color.RED);
for (int i=0; i<3; ++i)
g2d.drawLine(0,0,i*(width-1)/2,height-1);
for (int i=0; i<2; ++i)
g2d.drawLine(0,0,width-1,i*(height-1)/2);
g2d.setColor(Color.BLACK);
Font font = new Font("SansSerif",Font.PLAIN,18);
g2d.setFont(font);
FontMetrics fm = g2d.getFontMetrics();
int fontAscent = fm.getAscent();
int fontHeight = fm.getHeight();
int x = width/2;
int y = height/2;
g2d.drawLine(x,0,x,y);
y += fontAscent;
int sw = fm.stringWidth("Goodbye");
g2d.drawString("Goodbye",x-sw/2,y);
y += fontHeight;
sw = fm.stringWidth("Hello");
g2d.drawString("Hello",x-sw/2,y);
y += fontHeight;
String message = "abcdefghijklmnopqrstuvwxyz0123456789";
sw = fm.stringWidth(message);
g2d.drawString(message,x-sw/2,y);
}
public BufferedImage paintToImage(double dpi, double winches) {
int wpixels = getWidth();
int hpixels = getHeight();
double scale = dpi*winches/wpixels;
int wimage = (int)(scale*(wpixels-1)+1.5);
int himage = (int)(scale*(hpixels-1)+1.5);
int type = BufferedImage.TYPE_INT_RGB;
BufferedImage bi = new BufferedImage(wimage,himage,type);
Graphics2D g2d = (Graphics2D)bi.getGraphics();
g2d.setRenderingHint(
RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
Color fg = getForeground();
g2d.setColor(getBackground());
g2d.fillRect(0,0,wimage,himage);
g2d.setColor(fg);
g2d.scale(scale,scale);
paintComponent(g2d);
g2d.dispose();
return bi;
}
}
private static void writeToPng(BufferedImage image, String fileName) {
try {
File file = new File(fileName);
ImageIO.write(image,"png",file);
} catch (IOException ioe) {
throw new RuntimeException(ioe);
}
}
/*
private static class DGraphics {
public DGraphics(Graphics2D g2d, double dpi) {
_g2d = g2d;
_xushift = 0.5;
_yushift = 0.5;
_xuscale = dpi/72.0;
_yuscale = dpi/72.0;
_xdshift = 0.0;
_ydshift = 0.0;
_xdscale = 72.0/dpi;
_ydscale = 72.0/dpi;
}
public void translate(double x, double y) {
_g2d.translate(x,y);
}
public void scale(double s) {
_g2d.scale(s,s);
}
public void drawLine(double x1, double y1, double x2, double y2) {
_g2d.drawLine(x(x1),y(y1),x(x2),y(y2));
}
public int x(double xu) {
return (int)(_xushift+_xuscale*xu);
}
public int y(double yu) {
return (int)(_yushift+_yuscale*yu);
}
public double x(int xd) {
return _xdscale*(xd-_xdshift);
}
public double y(int yd) {
return _ydscale*(yd-_ydshift);
}
private double _xushift,_xuscale,_yushift,_yuscale;
private double _xdshift,_xdscale,_ydshift,_ydscale;
Graphics2D _g2d;
}
*/
/*
private static void benchPrimitives() {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new MyPanel());
frame.setSize(new Dimension(800,800));
frame.setVisible(true);
}
*/
/*
private static class MyPanel extends JPanel {
private static final long serialVersionUID = 1L;
private MyPanel() {
_n = 1000;
_x = new int[_n];
_y = new int[_n];
}
public void setBounds(int x, int y, int width, int height) {
super.setBounds(x,y,width,height);
System.out.println("setBounds: width="+width+" height="+height);
Random random = new Random();
for (int i=0; i<_n; ++i) {
_x[i] = (int)(width*random.nextDouble());
_y[i] = (int)(height*random.nextDouble());
}
}
public void paint(Graphics g) {
super.paint(g);
Stopwatch sw = new Stopwatch();
int ndraw,rate;
double maxtime = 1.0;
// Lines.
System.out.print("Drawing lines: ");
sw.restart();
for (ndraw=0; sw.time()© 2015 - 2025 Weber Informatics LLC | Privacy Policy