Nevertheless this has proved bothersome when working with many items at once and when one wants to operate not on the item contents but on its organization and features. The active item is the one where filters/GEGL ops are applied to, as well as most direct pixel modification (painting in particular).Ĭurrently the selection is a 1-1 equivalent to the active item. Similarly to linked items, all transform tools can work on layer groups, and no filter/GEGL operation work on layer groups. This concept of group is different from the concept of "groups" in other software (which are closer to GIMP's "link" concept) since GIMP groups involves forcing stack positions next to each others for items in the same group (consequently a render and/or organization change). Items of a same types can be grouped into "groups", represented by a "folder" icon in the relevant dock. Other software have similar concepts of linked layers and allow several such sets ("groups" in Blender, Inkscape, Scribus is the closer concept…). Only a given set of linked items at a time can be created, which means that if you want to operate on a different set of items, you have to first unlink the previous set. It has been raised that linked items is a volatile concept. In particular links have no influence on filters and GEGL operations. What "operations" means is still fuzzy, but as of today, it seems to involve only all the transform tools (even though the docs seems to make it only an example): Move, Rotate, Scale, Shear, Perspective, Flip and Unified Transform tools. If you click between the eye icon and the layer thumbnail, you get a chain icon, which enables you to group layers for operations on multiple layers (for example with the Move tool or a transform tool). This influences the stack order of layers.Īs of today, the "selected" and "active" layer are the same concept since it is not possible to select several layers at once. Layer "groups" layers can be organized in groups and subgroups. The "active" layer only 1 layer at a time is considered active. Multi-selection is limited to a single item type at once. The "selected" layers visual selection on the layer dock, identified by a different color of the selected items. Links can apply across various item types (layers, paths, etc.). The "linked" items several items can be "linked" together, as identified by the chain icon next to the layer name. Several concepts have been raised, allowing to interact with layers: This workgroup proposes to extend the current behavior to allow multi-layer selection, but also to define properly all concepts allowing layer interaction. In particular it is not possible to select multiple layers. Current layer list has always exactly 1 layer selected.
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