Mega Code Archive
Line2D Float
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import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.geom.Line2D;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class SliderControlPaintLine extends JFrame {
DrawingCanvas canvas = new DrawingCanvas();
JSlider slider1, slider2, slider3, slider4, slider5, slider6, slider7, slider8;
double transX = 0.0;
double transY = 0.0;
double rotateTheta = 0.0;
double rotateX = 150.0;
double rotateY = 150.0;
double scaleX = 1.0;
double scaleY = 1.0;
float width = 1.0f;
public SliderControlPaintLine() {
JPanel controlPanel = new JPanel();
controlPanel.setLayout(new GridLayout(3, 3));
getContentPane().add(controlPanel, BorderLayout.NORTH);
JLabel label1 = new JLabel("Translate(dx,dy): ");
JLabel label2 = new JLabel("Rotate(Theta,ox,oy): ");
JLabel label3 = new JLabel("Scale(sx,sy)x10E-2:");
controlPanel.add(label1);
slider1 = createSlider(controlPanel, JSlider.HORIZONTAL, 0, 300, 150, 100, 50);
slider2 = createSlider(controlPanel, JSlider.HORIZONTAL, 0, 300, 150, 100, 50);
controlPanel.add(label2);
slider3 = createSlider(controlPanel, JSlider.HORIZONTAL, 0, 360, 0, 90, 45);
JPanel subPanel = new JPanel();
subPanel.setLayout(new GridLayout(1, 2));
slider4 = createSlider(subPanel, JSlider.HORIZONTAL, 0, 300, 150, 150, 50);
slider5 = createSlider(subPanel, JSlider.HORIZONTAL, 0, 300, 150, 150, 50);
controlPanel.add(subPanel);
controlPanel.add(label3);
slider6 = createSlider(controlPanel, JSlider.HORIZONTAL, 0, 200, 100, 100, 10);
slider7 = createSlider(controlPanel, JSlider.HORIZONTAL, 0, 200, 100, 100, 10);
JPanel widthPanel = new JPanel();
JLabel label4 = new JLabel("Width Control:", JLabel.RIGHT);
slider8 = createSlider(widthPanel, JSlider.HORIZONTAL, 0, 200, 100, 100, 10);
slider8.addChangeListener(new SliderListener());
widthPanel.setLayout(new GridLayout(1, 2));
widthPanel.add(label4);
widthPanel.add(slider8);
getContentPane().add(widthPanel, BorderLayout.SOUTH);
getContentPane().add(canvas);
setSize(500,500);
setVisible(true);
}
public static void main(String arg[]) {
new SliderControlPaintLine();
}
public JSlider createSlider(JPanel panel, int orientation, int minimumValue, int maximumValue,
int initValue, int majorTickSpacing, int minorTickSpacing) {
JSlider slider = new JSlider(orientation, minimumValue, maximumValue, initValue);
slider.setPaintTicks(true);
slider.setMajorTickSpacing(majorTickSpacing);
slider.setMinorTickSpacing(minorTickSpacing);
slider.setPaintLabels(true);
slider.addChangeListener(new SliderListener());
panel.add(slider);
return slider;
}
class SliderListener implements ChangeListener {
public void stateChanged(ChangeEvent e) {
JSlider tempSlider = (JSlider) e.getSource();
if (tempSlider.equals(slider1)) {
transX = slider1.getValue() - 150.0;
canvas.repaint();
} else if (tempSlider.equals(slider2)) {
transY = slider2.getValue() - 150.0;
canvas.repaint();
} else if (tempSlider.equals(slider3)) {
rotateTheta = slider3.getValue() * Math.PI / 180;
canvas.repaint();
} else if (tempSlider.equals(slider4)) {
rotateX = slider4.getValue();
canvas.repaint();
} else if (tempSlider.equals(slider5)) {
rotateY = slider5.getValue();
canvas.repaint();
} else if (tempSlider.equals(slider6)) {
if (slider6.getValue() != 0.0) {
scaleX = slider6.getValue() / 100.0;
canvas.repaint();
}
} else if (tempSlider.equals(slider7)) {
if (slider7.getValue() != 0.0) {
scaleY = slider7.getValue() / 100.0;
canvas.repaint();
}
} else if (tempSlider.equals(slider8)) {
width = slider8.getValue();
canvas.repaint();
}
}
}
class DrawingCanvas extends Canvas {
public DrawingCanvas() {
setSize(300, 300);
}
public void paint(Graphics g) {
Graphics2D g2D = (Graphics2D) g;
g2D.translate(transX, transY);
g2D.rotate(rotateTheta, rotateX, rotateY);
g2D.scale(scaleX, scaleY);
BasicStroke stroke = new BasicStroke(width);
g2D.setStroke(stroke);
Line2D line1 = new Line2D.Float(100f, 200f, 200f, 200f);
g2D.draw(line1);
}
}
}
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