How to load a picture into Swing application and draw on top of it?

Asked Oct 22 '15 at 12:14

Active Oct 22 '15 at 13:31

Viewed 37 times

I need to add a picture (see below) and change the colors of the cells dynamically (it will depends on a dynamic content of JTable).

I was thinking to load this picture as a background of a new JTable, however in this case it's difficult to fit JTable's cells to the cells in the picture.

Another idea is to load image icons of blue colored squares into each cell of JTable, and then dynamically change these image icons by another ones.

So, what is a good solution for this kind of problems?

edited Oct 22 '15 at 13:31

Jad Chahine

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asked Oct 22 '15 at 12:14

Klausos Klausos

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`TableCellRenderer` is intended for this. – trashgod Oct 22 '15 at 12:21
@trashgod: So you would use TableCellRenderer in order to load image icons of blue colored squares into each cell of JTable, and then dynamically change these image icons by another ones? – Klausos Klausos Oct 22 '15 at 12:25
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No need to load a blue icon, just set the background color of your TableCellRenderer to blue. – Guillaume Polet Oct 22 '15 at 13:33
An alternative is to draw the image on a JPanel using the paintComponent method, and draw the rectangles in the new color. – Gilbert Le Blanc Oct 22 '15 at 15:36
Or implement `Icon`, for [example](http://stackoverflow.com/a/2834484/230513). – trashgod Oct 22 '15 at 18:28

How to load a picture into Swing application and draw on top of it?

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