Add Source Toolbar

[jp9000]

Description

Adds a toolbar that allows quick and easy modification of most common/essential source properties or media controls without having to open a separate properties window:

Motivation and Context

Originally the reason why the context bar was created was to allow us a space to add media controls for the media source (play/pause/stop/seek). However, It didn't really have much use outside of media controls; it felt sort of like wasted space. So, I added quick access to essential properties/buttons specific for each main source type that OBS comes with. This turned out to be pretty useful and a little bit of a boost to user experience (in my humble opinion).

The source toolbar can be hidden via the view menu if the user would prefer not to have extra space used.

How Has This Been Tested?

Tested with all the various sources while making it. Primarily just tested on Windows though, will try to get some testing on macOS and Linux.

Types of changes

• New feature (non-breaking change which adds functionality)

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.

[exeldro]

I would like to see the extra widget per source available in struct obs_source_info so that I can set a custom widget in sources added via plugin.
Something like:
void *(*toolbar_widget)(void *data);

[cg2121]

There are alignment issues in the context bar

[WizardCM]

On Ubuntu, due to the default UI font, the section for the source name feels very cramped. It doesn't fit the default "Screen Capture (XSHM)" source name.

The custom field for the text source on Ubuntu works correctly if there's only 1 line of text. More than one line causes the field to disappear completely. Not sure if this is intended.

With the "Window Capture (Xcomposite)" source on Ubuntu, an extra entry appears in the source toolbar that doesn't appear in the Properties window - "[Device not connected or not available]".

Overall, this seems to work great on both Ubuntu and Windows 10.

[jp9000]

The multi-line thing is intended. It's not possible to edit a multi-line string on the context bar, and having a multi-line edit box in the context bar causes a lot of problems with layout and text selection anyway. The device not connected thing is intended as well.

[mufunyo]

The multi-line thing is intended. It's not possible to edit a multi-line string on the context bar, and having a multi-line edit box in the context bar causes a lot of problems with layout and text selection anyway.

In that case I would replace the text box with a button reading "Edit multi-line text" or "Edit paragraph".

[SuslikV]

Two custom styles (themeID=refreshIconSmall and themeID2=contextBarButton) to single widget introduces inconvenience to design OBS themes. I couldn't believe that making Browser Refresh button of two custom styles was the simplest solution.

Please, avoid this is in the future. Give to the each element name and thus everything can be customized with QWidget#name header. Even here the Browser's button has its own name: <widget class="QPushButton" name="refresh">