Julian Eisel
23d2e77a54
Part of T98560. See https://wiki.blender.org/wiki/Source/Interface/Views Adds all the basic functionality needed for grid views. They display items in a grid of rows and columns, typically with a preview image and a label underneath. Think of the main region in the Asset Browser. Current features: - Active item - Notifier listening (also added this to the tree view) - Performance: Skip adding buttons that are not scrolled into view (solves performance problems for big asset libraries, for example). - Custom item size - Preview items (items that draw a preview with a label underneath) - Margins between items scale so the entire region width is filled with column, rather than leaving a big empty block at the right if there's not enough space for another column (like the File and current Asset Browser does it). - "Data-View Item" theme colors. Not shown in the UI yet. No user visible changes expected since the grid views aren't used for anything yet. This was developed as part of a rewrite of the Asset Browser UI (`asset-browser-grid-view` branch), see T95653. There's no reason to keep this part in a branch, continuing development in master makes things easier. Grid and tree views have a lot of very similar code, so I'm planning to unify them to a degree. I kept things separate for the start to first find out how much and what exactly makes sense to override.
Sphinx Warnings
: WARNING: Could not obtain image size. :scale: option is ignored.
Note the preview is not accurate and warnings may not indicate real issues.
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