Is there a 'setpixel' for image objects?

[savago]

Friends


I had googled around and it seems that starting from PyS60 1.2 there is a new function for image objects ('getpixel') that returns pixels values from one image in a given coordinate.

I was wondering if there is an equivalente 'setpixel' function to change/add pixels in an image object? If not, is there a way to create an image with a given dimension (say, 640 x 480) and fill in the pixel values of it?

It would be nice to being able to set whole lines and/or columns at just 1 function call too!
:-)


Best regards


Savago

[Jan Rune Johansen]

You can load an image into canvas. And use the point() method to "setpixel"...

Something like this:

x = 10
y = 10
color = 0x000000
appuifw.app.body.point((x, y), color)

[Jan Rune Johansen]

I actually have a little example of the point method here that i used for a test:

import e32
import appuifw
import graphics

fullscreen = 1
x = 10
y = 10
color = 0xFFFFFF
bg_color = 0x000000

def exit():
	global fullscreen
	fullscreen = 0


appuifw.app.screen = 'full'
canvas = appuifw.Canvas()
appuifw.app.body = canvas

canvas.clear(bg_color) 

appuifw.app.exit_key_handler= exit

while fullscreen:
	appuifw.app.body.point((x, y), color)
	e32.ao_sleep(0.5)

[savago]

Dear Jan Rune Johansen

Thanks a lot for your message. I will test the code and report back later.

The only problem that I can see with this approach is that its a bit cpu intensive (i.e. for a typical display of 320x240 pixels it will require 76800 functions calls to fill in an image of the same size).

Is there a way to fill one row or column with *just* 1 function call? Or even better, present one array with all raw pixel data (say RGB, RGB, etc..) and fill in the canvas/image object at once?

Best regards


Savago