Change Details

Part of GSoC 2021 project : UV Editor Improvements - T88990 This is a **work in progress** patch to add Edge selection support for the UV editor - T76545 Changes made so far : * Add UV edge selection flag - MLOOPUV_EDGESEL * Selected UV edges are now drawn similar to how edges are drawn in mesh edit mode. * Refactor UV selection functions to use UV edge flag wherever required. * Functions for UV selection checks and flushing selection state. * Edge selection support for UV operators : * Mouse select * Box select * Circle select * Lasso select * (De)Select All * Invert selection * Select more/less * Select split * Select pinned * Loop select * Edge ring select * Rip tool * Hide selected * Reveal hidden * New operator for setting UV select mode and flushing selections based on select and sticky mode * Undo for UV select mode * Add small penalty while searching for the nearest UV edge. Ensures that other edges sharing the same location in UV space will be selected in successive attempts. * Restore BMLoopUV.select_edge boolean in Python API Design limitations : * Changing sticky modes without changing the UV select mode can cause invalid selection states. This is a known limitation present previous Blender versions as well. Issues fixed so far : * T76343 * T78757 * T65836 * T26676 * T79148

This patch adds edge selection support for UV editing (refer T76545). Developed as a part of GSoC 2021 project - UV Editor Improvements. Previously, edge selection simply selected vertices, which resulted in other edges between selected vertices to be also selected. Selections in the UV editor always flushed down to vertices and this caused multiple issues such as T76343, T78757 and T26676. This patch fixes this by adding edge selection support for all UV operators and support for flushing selections between vertices and edges. Changing UV select modes is now done using a separate operator, which also handles select mode flushing and undo for UV select modes. Drawing of selected UV edges is also updated to match the edit-mesh display in the 3D viewport. Notes on technical changes made in this patch: * Restored the MLOOPUV_EDGESEL flag (removed in rB9fa29fe7652a). * Added support for flushing selection between vertices and edges. * Added edge support for UV selection checks * Restored the BMLoopUV.select_edge boolean in the Python API * New operator to handle updating UV select modes and flushing TODOs added with this patch: * Edge support for UV shortest path operator (currently this is done using vertex path logic and selection flushing) * Change the default UV editor theme color instead of reducing contrast with edge-select. * Proper UV element selections for Reveal Hidden operator

Part of GSoC 2021 project : UV Editor Improvements - T88990This patch adds edge selection support for UV editing (refer T76545). This is a **work in progress** patch to add Edge selection support for theDeveloped as a part of GSoC 2021 project - UV eEditor - T76545Improvements. Changes made so far :Previously, edge selection simply selected vertices, which resulted in * Add UV edge selection flag - MLOOPUV_EDGESEL * Selected UV edges are now drawn similar to how edges are drawn in mesh edit mode. * Refactor UV selection functions to use UV edge flag wherever required. * Functions for UV selection checks and flushing selection state. * Edge selection support for UV operators : * Mouse select * Box select * Circle select * Lasso select * (De)Select All * Invert selection * Select more/less * Select splitother edges between selected vertices to be also selected. Selections in the UV editor always flushed down to vertices and this * Scaused multiple issues such as T76343, T78757 and T26676. This patch fixes this by adding edge select pinnedion support for all UV * Loopoperators and support for flushing selecttions between vertices and * Edge ring selectedges. Changing UV select modes is now done using a separate operator, which * Rip toolalso handles select mode flushing and undo for UV select modes. * Hide selectedDrawing of selected UV edges is also updated to match the edit-mesh * Reveal hiddendisplay in the 3D viewport. Notes on technical changes made in this patch: * New operator for setting UV select mode and flushing selections based on select and sticky mode* Restored the MLOOPUV_EDGESEL flag (removed in rB9fa29fe7652a). * Undo* Added support for UVflushing select modetion between vertices and edges. * Add small penalty while searching for the nearest UV edge. Ensures that other edges sharing the same location in UV space will be selected in successive attempts.ed edge support for UV selection checks * Restored the BMLoopUV.select_edge boolean in Python API Design limitations :the Python API * Changing sticky modes without changing the UV select mode can cause invalid selection states. This is a known limitation present previous Blender versions as well.New operator to handle updating UV select modes and flushing Issues fixed so far : * T76343 * T78757TODOs added with this patch: * T65836* Edge support for UV shortest path operator (currently this is done using vertex path logic and selection flushing) * T26676* Change the default UV editor theme color instead of reducing contrast with edge-select. * T79148* Proper UV element selections for Reveal Hidden operator