button image draw problem

[kevin shang]

as the video show , button image gone when move the background container widget.

image formart is png, how to fix this?

20170525_172552.mp4

[kevin shang]

change the image formart to gif, the problem still exist.

I'm using ugfx2.7 git,  on ubuntu16.04x64, X driver(for on SDL driver, the main windows not show up)

Edited May 26, 2017 by kevin shang

[inmarket]

Part 1: workaround...

After moving the container do a gwinRedraw on your lightbulb.

Part 2: fix...

It is difficult to tell exactly what is going on without suitable source code. Please write the smallest program you can that demonstrates this problem, attach it in a zip to this forum topic and we will try and work out what is going on. I suspect it is either related to a partial redraw optimisation or alternatively the move code (which is not well tested as it is a less commonly performed operation)

[kevin shang]

there is no the problem on moving a image widget, which just on moving a button widget with image custom draw.

 

what i am doing is: place a container window and place some button widget as it's child, then move the container, 

widgets with normal draw are work fine ,only the button with image draw not work well.

Edited May 26, 2017 by kevin shang

[kevin shang]

problem fixed, it's my fault, change the img in other place.

[Joel Bodenmann]

Glad to hear that you managed to track down and fix the issue  

And: Welcome to the µGFX community!