Image Transparency issue - Help me out ....

[tomcruise]

Hi,

I want to create a transparent RGBImage on the background image(this is not transparent). and i want to draw other non-transparent image on top of RGBImage using RGBImage drawImage method. how can i do this ? i want a final image from that RGNImage getImage() method so that i can draw it on canvas.

like

RGBimage rgbImage= new RGBImage(200,235);
rgbImage.setcolor(0xaa, 0xff, 0xff,0xff) // 0xaa is the transparency value

rgbImage.fillRect(0, 0, 220, 235); // fill entire image with the specified colour

//Draw non transparent Top Images on the transparent image
rgbImage.drawImage(sprite1, 10, 120, Graphics.TOP | Graphics.LEFT);
rgbImage.setClip(90,150,10,10);
rgbImage.drawImage(sprite2, 90, 150, Graphics.TOP | Graphics.LEFT);
rgbImage.setClip(0,0,220,235);
rgbImage.drawImage(sprite3, 10, 30, Graphics.TOP | Graphics.LEFT);

finalImage = rgbImage.getImage();

this is what i want to to use. How can i do this. I want to make a RGBImage Class.

prompt response would be appriciated !

currently what i'm doing is to create an mutable image then get the graphics object of that mutable image then i draw images using that graphics object on top of that image. then i change the alpha pixsels of that mutable image and then i create an image using RGB array. but this makes everything transparent. but i want top images non transparent. please help me out with this


Thanks,
Tom cruise
California, USA

[tomcruise]

is anyone there to answer ?????

[rdrincon]

Hello there

According to what I understood... all you need to do is using the game api of the MIDP 2.0 specification

So have a look at the following classes:

• GameCanvas ( a subclass of Canvas with game-related features)
• Sprite (for animated sprites)
• LayerManager (for managing Sprites and TiledLayers)

You can create one Sprite out of one image (whatever the method you use for that is)
Create a LayerManager and then add every Sprite to the LayerManayer as an independient layer... in this way you can manipulate every image separatedly.

There is plenty of documentation in the MIDP 2.0 API.

Besides, here's a complete example that uses the game API.

http://www.forum.nokia.com/info/sw.n..._0_en.zip.html

Hope this helps


:Ruben