[Solved] editorhost COnOffButton not working

Developer VSTGUI
#1

Hello

I am new to this so I apologize if I am doing something wrong.

I created a blank plugin (no xml file). I then right click to enter the editor (I use the editorhost app provided). I added a text field (CTextLabel).

I then wanted to add a COnOffButton to represents a toggle with 2 values. I added a bitmap which is 50x100 big (contains the 2 state of the toggle) and it looks like this:
Control_AudioSwitch_50x100.png
But it doesn’t get rendered as can be seen on this screenshot:

Screen Shot 2018-03-12 at 11.31.43.jpg
Screen Shot 2018-03-12 at 11.31.43.jpg806×631 96.7 KB

If I click “Edit” and then click on the toggle, nothing really happens.

I looked at the source code for COnOffButton and it looks like it is expecting a bitmap with the 2 images…

What am I doing wrong?

Thanks for the help.
Yan

#2

Hi,
please save the xml file first, then add the xml file to your cmake or Xcode project and rebuild. After that it hopefully should work.

Cheers
Arne

#3

I followed your suggestion and it does not work. It is still the same issue.

When looking at the xml file, it does seem “right” to me:

...
 <view background-offset="0, 0" bitmap="Control_AudioSwitch_50x100" class="COnOffButton" control-tag="Root::Param_AudioSwitch" default-value="0" max-value="1" min-value="0" mouse-enabled="true" opacity="1" origin="130, 120" size="50, 50" transparent="false" wants-focus="true" wheel-inc-value="0.1"/>
...
 <bitmap name="Control_AudioSwitch_50x100" path="Control_AudioSwitch_50x100.png"/>
...

Yan

#4

I think the bitmap have to be next to the xml file to be found.

#5

It is. Both files are in the SAME folder. Exactly like in the again example…

Yan

#6

Do you have the following output in the debugger console ?

*** Bitmap 'Control_AudioSwitch_50x100.png' not found.
#7

No, it just get loaded fine. No error message.

Yan

#8

Hmm, then I don’t know. It’s working here, just checked it without any problems.
What happens if you use another view type, another bitmap ?
As last resort, you have to use the debugger and see why it’s not drawing the bitmap.

#9

I found out what the problem is: when looking at the helloworld_with_VSTGUI project now provided with SDK 3.6.9 I saw that there was the same file with different names: background.png, background_2x.png, background_3x.png which led me to believe that somehow the name of the bitmap contains the resolution…

Renaming my image from Control_AudioSwitch_50x100.png to Control_AudioSwitch.png fixed the problem…

I am very unclear how and when the _2x, _3x extension is being used and would definitely love to get some info on that…

Yan

#10

Ah OK, you’ve found a bug.
The bitmap name should be checked for the pattern _?.??x.png. But the check is not strict enough. I’ll fix this.
The pattern is used to decode the scale factor of a bitmap for HiDPI usage.

Cheers
Arne