[java] Drawing
Author
Hello everybody!!
Wich class you guys use to draw and manipulate images (jpg,gif)...?
My paint method is not working, I don't know why...
First thing that you have to do is load the file in to an Image or BufferedImage.
And then when I actually want to draw something to lets say a frame I do this:
Now... haven't tested this code, but thats the general idea ;)
[Edited by - H_o_p_s on March 16, 2005 2:54:09 PM]
java.net.URL url = getClass().getClassLoader().getResource(FILENAME); java.awt.image.BufferedImage BufferedImage TEMP ImageIO.read(url);java.awt.image.BufferedImage BufferedImage MY_IMAGE = MYFRAME.getGraphicsConfiguration().createCompatibleImage(TEMP.getWidth(),TEMP.getHeight(), TEMP.getColorModel().getTransparency());Graphics2D g = MY_IMAGE.createGraphics();g.drawImage(TEMP,0,0,null);g.dispose();And then when I actually want to draw something to lets say a frame I do this:
public class PicTest { static int WIDTH = 400; static int HEIGHT= 300; public JFrame f; public BufferStrategy strategy; public Graphics2D g; public void init() { f = new JFrame("MY TITLE"); f.setBounds(0,0,WIDTH,HEIGHT); f.setIgnoreRepaint(true); strategy = f.createBufferStrategy(2); g = (Graphics2D)strategy.getDrawGraphics(); //LOAD SOME GRAPHICS INTO BUFFERED IMAGES WITH THE ABOVE FUNCTION } public void Main_Loop() { while (true) { //UPDATE GRAPHICS //DRAW WHAT YOU WANT WITH: //g.drawImage(MY_IMAGE, X, Y, null); strategy.show(); Thread.yeild(); } } public static void main(String[] args) { PicTest p = new PicTest(); p.init(); p.Main_Loop(); }}Now... haven't tested this code, but thats the general idea ;)
[Edited by - H_o_p_s on March 16, 2005 2:54:09 PM]
Author
Thanks for the hint H_o_p_s!
I solved my problem...
I was making a mistake about setting the ContentPane into the JFrame, but now the things are all rigth...I hope so!
About your code, I couldn´t get the meaning of the method setIgnoreRepaint(true)
Why is it used??
So long!! Bye bye!!
Usually in none intensive applications that you want to have a contolled way of representing images you would just overwrite the paint() method. Since we are using a bufferStrategy it is not needed. BufferStrategy handles are repaints now.
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