There is a separator between the text preview and the options, simply drag it to make the preview larger or smaller as you want.

For reference, I did some digging for this 2 days ago.

1. This code says that the view should be a 3:1 stretch

   obs-studio/UI/window-basic-properties.cpp

   Lines 111 to 112 in 95020dd

   	windowSplitter->setStretchFactor(0, 3);
   	windowSplitter->setStretchFactor(1, 1);

2. However, no matter how tall you open the Properties window, the properties section always has the exact same height
3. I think this is due to the Preview requesting a full stretch without the parent view knowing how tall it is properly.

If I completely remove the stretch factor & preview->sizePolicy it behaves better, but still not 3:1 or anything useful.

I don't believe this is new to 27.2 though.

Ah, sorry, I see what you mean now, the size is not being saved. Can you confirm if this is new to 27.2 or if you experienced this in previous versions?

For reference, I did some digging for this 2 days ago.

1. This code says that the view should be a 3:1 stretch

   obs-studio/UI/window-basic-properties.cpp

   Lines 111 to 112 in 95020dd

   	windowSplitter->setStretchFactor(0, 3);
   	windowSplitter->setStretchFactor(1, 1);

2. However, no matter how tall you open the Properties window, the properties section always has the exact same height
3. I think this is due to the Preview requesting a full stretch without the parent view knowing how tall it is properly.

If I completely remove the stretch factor & preview->sizePolicy it behaves better, but still not 3:1 or anything useful.

I don't believe this is new to 27.2 though.

Thanks for your reply.
It would also be nice if the default ratio was adjusted to a 1:1 instead of 3:1.

In my opinion the ratio should be highly dependent on the size of the preview section. If the source is wider than it is tall, then the properties should take up more space (as is the case with the text source). For sources that are tall but also have a lot of properties, I think 1:1 or 2:1 would be best.

And I thought we were usually working on the editing area, and the preview window was sufficient with a small window.

Hey there! I'm new to the project and would like to try and tackle this issue. Lines 111-112 seemed to have moved from obs-studio/UI/window-basic-properties.cpp in the master branch. Any advice on where to start looking, or should this issue be resolved in the releases/27.2 branch?

@ebot102 That is due to the merging of #6088, I expect the code to look at is not in the Properties window at all, but rather something deep in https://github.com/obsproject/obs-studio/blob/master/UI/qt-display.cpp where it adapts its size to the content regardless of the container it's in.

So I see where it is resizing the content in https://github.com/obsproject/obs-studio/blob/master/UI/qt-display.cpp (lines 213-216)

if (isVisible() && display) {
		QSize size = GetPixelSize(this);
		obs_display_resize(display, size.width(), size.height());
	}

However, the only place I have been able to find that the scaling ratios are set is in https://github.com/obsproject/obs-studio/blob/master/UI/forms/OBSBasicProperties.ui under the "propertiesFrame" tag. Is this the correct place to edit the ratio for text boxes, or is this defining the scaling ratios for the parent container?

Fixed by #6671