Draw rotated text

[smabres]

Hi everyone, I am Sergio from Argentina, I and writing a Business Intelligence module in J2ME, that I call BI Mobile, I am planning to do alerts list, pie chart, lines and bars charts horizontal and vertical.
I have finished Pie Chart it works fine, alerts list fine too, but while writing line charts I found that I need to draw 90 degrees rotates text for the X axis labels. Does eny one know how to g.drawString rotated?
Thanks so much for any help you can give me
Sergio

[bogdan.galiceanu]

Hi Sergio,

What you could do is this:
-Create a blank image
-Create an instance of that image's Graphics class (using getGraphics() method) and write the text on it using the drawString(...) method
-Show that image using the drawRegion(...) method, specifying the rotation parameter as, for example, Sprite.TRANS_ROT90

Here's the code I used for the canvas. You can adapt it to suit your needs.

import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.Sprite;

public class MyCanvas extends Canvas {
    
    public void paint(Graphics g) {
        String s="java";
        Image img=Image.createImage(50,50);
        Graphics gr=img.getGraphics();
        gr.drawString(s, 0, 0, Graphics.TOP|Graphics.LEFT);
        g.drawRegion(img, 0, 0, 50, 50, Sprite.TRANS_ROT90, 0, 0, Graphics.TOP|Graphics.LEFT);
    }
    
}

[smabres]

Dear Bogdan thanks so much it is just what I needed; I have been programming for enterprise apps. for more than 20 year I never thought I was going to use a Sprite, your idea is great, I wish I could show you the Line Graph final image.
Thanks so mucho for your help
Sergio