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import com.jhlabs.image.GaussianFilter;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.geom.Area;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
*
* @date 05/02/2013
*/
public class Demo extends JPanel {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JFrame f = new JFrame("Test");
f.setContentPane(new Demo());
f.pack();
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
}
private BufferedImage image;
private Image small;
private Point loc;
private int halfScaledSize;
Demo() {
try {
image = ImageIO.read(getClass().getResourceAsStream("koala.jpg"));
small = image.getScaledInstance(
image.getWidth()/2, image.getHeight()/2,
Image.SCALE_SMOOTH);
halfScaledSize = small.getWidth(this) / 8;
loc = new Point(0, 0);
}
catch(Exception e) {
throw new RuntimeException(e);
}
setPreferredSize(new Dimension(small.getWidth(this), small.getHeight(this)));
addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseMoved(MouseEvent e) {
loc.x = e.getX();
loc.y = e.getY();
repaint();
}
});
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(small, 0, 0, this);
int x = loc.x - halfScaledSize;
int y = loc.y - halfScaledSize;
int size = halfScaledSize * 2;
BufferedImage shadow = getShadow(Color.BLACK, size+6, 6);
g.drawImage(shadow, x + 3, y + 3, this);
((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g.setColor(Color.white);
g.fillRoundRect(x, y, size + 6, size + 6, size + 6, size + 6);
g.drawImage(getRenderedImage(image, loc.x * 2, loc.y * 2, size),
x + 3, y + 3, this);
}
private BufferedImage getShadow(Color c, int size, int blur) {
int fix = blur / 2;
BufferedImage result = new BufferedImage(
size, size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = result.createGraphics();
g.setClip(new RoundRectangle2D.Double(
fix, fix, size - blur, size - blur, size - blur, size - blur));
g.setColor(c);
g.fillRect(0, 0, result.getWidth(), result.getHeight());
g.dispose();
GaussianFilter filter = new GaussianFilter(blur);
result = filter.filter(result, result);
return result;
}
private BufferedImage getRenderedImage(
BufferedImage img, int x, int y, int size) {
BufferedImage result = new BufferedImage(
size, size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = result.createGraphics();
g.translate(-x, -y);
g.drawImage(img, 0, 0, null);
g.translate(x, y);
RoundRectangle2D round = new RoundRectangle2D.Double(0, 0, size, size, size, size);
Area clear = new Area(new Rectangle(0, 0, size, size));
clear.subtract(new Area(round));
g.setComposite(AlphaComposite.Clear);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g.fill(clear);
g.dispose();
return result;
}
}
import com.jhlabs.image.GaussianFilter;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
*
* @date 05/02/2013
*/
public class Demo extends JPanel {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JFrame f = new JFrame("Test");
f.setContentPane(new Demo());
f.pack();
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
}
private BufferedImage image;
private Image small;
private Point loc;
private int halfScaledSize;
Demo() {
try {
image = ImageIO.read(getClass().getResourceAsStream("koala.jpg"));
small = image.getScaledInstance(
image.getWidth()/2, image.getHeight()/2,
Image.SCALE_SMOOTH);
halfScaledSize = small.getWidth(this) / 8;
loc = new Point(0, 0);
}
catch(Exception e) {
throw new RuntimeException(e);
}
setPreferredSize(new Dimension(small.getWidth(this), small.getHeight(this)));
addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseMoved(MouseEvent e) {
loc.x = e.getX();
loc.y = e.getY();
repaint();
}
});
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(small, 0, 0, this);
int x = loc.x - halfScaledSize;
int y = loc.y - halfScaledSize;
int size = halfScaledSize * 2;
BufferedImage shadow = getRoundPanel(Color.BLACK, size+10, 10);
g.drawImage(shadow, x + 5, y + 5, this);
g.drawImage(getRoundPanel(Color.WHITE, size+10, 4), x, y, this);
g.drawImage(getRenderedImage(image, loc.x * 2, loc.y * 2, size, 2),
x + 5, y + 5, this);
}
private BufferedImage getRoundPanel(Color c, int size, int blur) {
int fix = blur / 2;
BufferedImage result = new BufferedImage(
size, size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = result.createGraphics();
g.setClip(new RoundRectangle2D.Double(
fix, fix, size - blur, size - blur, size - blur, size - blur));
g.setColor(c);
g.fillRect(0, 0, result.getWidth(), result.getHeight());
g.dispose();
GaussianFilter filter = new GaussianFilter(blur);
result = filter.filter(result, result);
return result;
}
private BufferedImage getRenderedImage(
BufferedImage img, int x, int y, int size, int blur) {
int fix = blur / 2;
BufferedImage result = new BufferedImage(
size, size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = result.createGraphics();
g.setClip(new RoundRectangle2D.Double(
fix, fix, size-blur, size-blur, size-blur, size-blur));
g.translate(-x, -y);
g.drawImage(img, fix, fix, null);
size -= blur * 2;
GaussianFilter filter = new GaussianFilter( blur * 2 );
result = filter.filter(result, result);
g.setClip(new RoundRectangle2D.Double(
blur, blur, size - blur * 2, size - blur * 2, size - blur * 2, size - blur * 2));
g.drawImage(img, fix, fix, null);
g.dispose();
return result;
}
}
for(int i = 0; i < 100; i++){
//double PI = 3.14159;
int dx1,dx2,dy1,dy2;
int sx1,sx2,sy1,sy2;
double r = 50, x = 0, y = Math.abs(50 - i);
x = r * r - y * y;
x = Math.sqrt(x);
dx1 = (int)(300 - x);
sx1 = (int)(50 - x);
dx2 = (int)(300 + x);
sx2 = (int)(50 + x);
dy1 = 100 + i;
sy1 = i;
dy2 = 100 + i + 1;
sy2 = i + 1;
targetGraphics.drawImage(srcImage1, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2, null);
}
targetGraphics.fillOval(300, 200, 100, 100);