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Drawing multiple small gif images

Posted on 2001-06-27
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Last Modified: 2006-11-17
I have a drawing area (JPanel) in wich I want to place gif images which are chosen from a toolbox.
This way I want to make it possible to draw a layout of a modelrailway.
the image are 15*15 pixels.
Now I can load the image I select from the toolbox with
toolkit.createImage(JDrawArea.class.getResource(railTB.selButton.tag));
I can draw this image to the panel, but with the next image the previuos one disappears.
I know in Delphi you have to draw to a canvas.
I like to know the trick for JAVA.
a little example would be welcome.

Thanks
Rob Nieuwland
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Question by:rnieuwl
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4 Comments
 

Expert Comment

by:SimonSay
ID: 6233067
could you post your code here? Without that, it is hard to say what's wrong.
0
 

Author Comment

by:rnieuwl
ID: 6235233
 public void paint(Graphics g) {
    super.paint(g);
    if (bi != null) {g.drawImage(bi,x,y,this); }
  }


  void this_mouseClicked(MouseEvent e) {
    bi = toolkit.createImage(JDrawArea.class.getResource(railTB.selButton.tag));
  }

A little simple but at least I thought this would paint an image to my drawarea (extends jpanel)

It only draws this image after that the paint method has drawn the image and another repaint occures.

But when I select another image to be put beside it, the old one disappears.
Not what i had in mind.

so perhaps someone can tell me how this should be done

thanks already
Rob
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LVL 5

Expert Comment

by:vemul
ID: 7616514
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
- To be PAQ'ed and points refunded
Please leave any comments here within the next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

vemul
Cleanup Volunteer
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Accepted Solution

by:
modulo earned 0 total points
ID: 7639822
Finalized as proposed

modulo

Community Support Moderator
Experts Exchange
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