Animated img's in python?

[JimmPooJimmPoo]

Hi,

I wrote my first app: nCoin v0.57
nCoin is an App that can toss a coin for something.

so here are my questions:
1.
Is it possible to show an animated img while the coin is "spinning" in the phone?

2.
how to flip the coin through pressing the Joistick?


Try it:
Download:
http://www.mediafire.com/?dmyhw0y4aws

- Latest Python and megapymodulepack must be installed.
- This is unsigned so you must self-sign or have a hacked phone.

[JimmPooJimmPoo]

nobody an Idea?

I only want to show a *.gif image in python...

[bogdan.galiceanu]

1) As far as I know it isn't possible to display animated gif files (you can only display the first frame of it). So maybe you can have a few different images and display them in a fast sequence so it would look like the coin is spinning.

2) You can bind the joystick (selection) button to the canvas so that when it's pressed, call a function that "flips" the coin.

[JimmPooJimmPoo]

thx for ur reply
so u mean extract the gif images to a few different images?
and then? i used this code to show one image:

scr=topwindow.TopWindow()
inf=graphics.Image.open("Path to file...")
scr.add_image(inf,(0,0,240,320))
scr.show()

but when I add this a again to view a second img,
for a little second, the background image of my app is shown.
there is no smoothly transition of the images...

u know a better code, to view a few images in fast sequence?

[Rafael T.]

Hi,

I wrote my first app: nCoin v0.57
nCoin is an App that can toss a coin for something.

so here are my questions:
1.
Is it possible to show an animated img while the coin is "spinning" in the phone?

2.
how to flip the coin through pressing the Joistick?

I just tested a script with an animated .gif and it didn't worked. The image stays still. But, as Bogdan said, you can display them in sequence so it will look like a spin.


To call the function for flipping the coin, you can use canvas.bind, as Bogdan also told you. For example:

import e32, appuifw, graphics
import key_codes

path = 'E:\\Python\\comeback.gif'
img = graphics.Image.open(path)

def coin_flip():

    # handle the flip here ...

def handle_redraw(rect):
    canvas.blit(img)

canvas = appuifw.Canvas(event_callback = None, redraw_callback = handle_redraw)
appuifw.app.body = canvas
appuifw.app.body = 'full'

canvas.bind(key_codes.EKeySelect, coin_flip)

app_lock = e32.Ao_lock()
app_lock.wait()

Hope it helps,

Rafael.

[Rafael T.]

thx for ur reply
so u mean extract the gif images to a few different images?
and then? i used this code to show one image:

scr=topwindow.TopWindow()
inf=graphics.Image.open("Path to file...")
scr.add_image(inf,(0,0,240,320))
scr.show()

but when I add this a again to view a second img,
for a little second, the background image of my app is shown.
there is no smoothly transition of the images...

u know a better code, to view a few images in fast sequence?

Sorry for the old reply below, we posted almost at the same time

I'm curious about something:

Why are you using topwindow module? This code you passed us is displaying the image in the whole screen. For this, you can simplify and use appuifw.Canvas()

For the animation being smooth, I recommend you to do many images and change them just a little bit at a time so it won't do any "rude" movement

So, take a look at the code I provided you on the post below. It uses the appuifw.Canvas(). I recommend you to use this because you'll avoid things like displaying the background when changing the images of your animation, as you will draw directly on the application's background


Hope it helps,

Rafael.