Button to Image
3 отговора
123 прегледа
Button to Image
От скоро се занимавам с Java и искам да попитам как мога, ако примерно имам един JButton да го взема като JPG image или просто някакъв image. Мога ли въобще да го направиа и ако да, мога ли да взема и JFrame като JPG.
Re: Button to Image
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import javax.swing.JButton;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class Main {
public static void main(String[] args) {
try {
paintToJpeg();
} catch (Exception e) {
e.printStackTrace();
}
}
private static void paintToJpeg() throws IOException {
BufferedImage image= new BufferedImage(200,100, BufferedImage.TYPE_INT_RGB);
Graphics g=image.getGraphics();
OutputStream out = new FileOutputStream("c:/temp/test.jpg");
JButton button = new JButton("Test");
button.setSize(200, 100);
button.paint(g);
JPEGImageEncoder encoder= JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close();
}
}
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import javax.swing.JButton;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class Main {
public static void main(String[] args) {
try {
paintToJpeg();
} catch (Exception e) {
e.printStackTrace();
}
}
private static void paintToJpeg() throws IOException {
BufferedImage image= new BufferedImage(200,100, BufferedImage.TYPE_INT_RGB);
Graphics g=image.getGraphics();
OutputStream out = new FileOutputStream("c:/temp/test.jpg");
JButton button = new JButton("Test");
button.setSize(200, 100);
button.paint(g);
JPEGImageEncoder encoder= JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close();
}
}
Re: Button to Image
Mersi, mnogo mi pomogna
Imam oshte edin vapros.
Opitvam se da prihvana onclick na buton primeno taka
void jButton1_actionPerformed(ActionEvent e) {...}
No w obrabotkata vikam metod kojto iavno moje da throw-ne exception i polu4avam slednata greshka:
must be caught or declared to be thrown at line 59 (59:11)
Prepraviam fukciqta s koqto otabotwam onclick-a na
void jButton1_actionPerformed(ActionEvent e) throws Exception{...}
oba4e tazi funkciq se izvikva ot abstraktnia metod
public void actionPerformed(ActionEvent e) {
adaptee.jButton1_actionPerformed(e);
}
koito ne moje da throw-va exception zashtoto e taka definiran v abstractnia klas.
Kakto da pravia?
Imam oshte edin vapros.
Opitvam se da prihvana onclick na buton primeno taka
void jButton1_actionPerformed(ActionEvent e) {...}
No w obrabotkata vikam metod kojto iavno moje da throw-ne exception i polu4avam slednata greshka:
must be caught or declared to be thrown at line 59 (59:11)
Prepraviam fukciqta s koqto otabotwam onclick-a na
void jButton1_actionPerformed(ActionEvent e) throws Exception{...}
oba4e tazi funkciq se izvikva ot abstraktnia metod
public void actionPerformed(ActionEvent e) {
adaptee.jButton1_actionPerformed(e);
}
koito ne moje da throw-va exception zashtoto e taka definiran v abstractnia klas.
Kakto da pravia?
Re: Button to Image
void jButton1_actionPerformed(ActionEvent e) {
try{
//пишеш си кода
}catch(Exception e){
// обработваш си грешката
}
}
Понякога съм толкова добра,
че цялата изтръпвам и боли ме...
try{
//пишеш си кода
}catch(Exception e){
// обработваш си грешката
}
}
Понякога съм толкова добра,
че цялата изтръпвам и боли ме...