Curves: New tools for curves sculpt mode.

This commit contains various new features for curves sculpt mode
that have been developed in parallel.

* Selection:
  * Operator to select points/curves randomly.
  * Operator to select endpoints of curves.
  * Operator to grow/shrink an existing selection.
* New Brushes:
  * Pinch: Moves points towards the brush center.
  * Smooth: Makes individual curves straight without changing the root
    or tip position.
  * Puff: Makes curves stand up, aligning them with the surface normal.
  * Density: Add or remove curves to achieve a certain density defined
    by a minimum distance value.
  * Slide: Move root points on the surface.

Differential Revision: https://developer.blender.org/D15134

1 files changed, 50 insertions, 0 deletions

diff --git a/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py b/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py
index 5831aa52cc1..9f7ca89b8c9 100644
--- a/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py
+++ b/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py
@@ -2377,6 +2377,51 @@ class _defs_curves_sculpt:
             data_block='GROW_SHRINK'
         )
 
+    @ToolDef.from_fn
+    def pinch():
+        return dict(
+            idname="builtin_brush.pinch",
+            label="Pinch",
+            icon="ops.curves.sculpt_pinch",
+            data_block='PINCH'
+        )
+
+    @ToolDef.from_fn
+    def smooth():
+        return dict(
+            idname="builtin_brush.smooth",
+            label="Smooth",
+            icon="ops.curves.sculpt_smooth",
+            data_block='SMOOTH'
+        )
+
+    @ToolDef.from_fn
+    def puff():
+        return dict(
+            idname="builtin_brush.puff",
+            label="Puff",
+            icon="ops.curves.sculpt_puff",
+            data_block='PUFF'
+        )
+
+    @ToolDef.from_fn
+    def density():
+        return dict(
+            idname="builtin_brush.density",
+            label="Density",
+            icon="ops.curves.sculpt_density",
+            data_block="DENSITY"
+        )
+
+    @ToolDef.from_fn
+    def slide():
+        return dict(
+            idname="builtin_brush.slide",
+            label="Slide",
+            icon="ops.curves.sculpt_slide",
+            data_block="SLIDE"
+        )
+
 
 class _defs_gpencil_vertex:
 
@@ -3140,6 +3185,11 @@ class VIEW3D_PT_tools_active(ToolSelectPanelHelper, Panel):
             _defs_curves_sculpt.delete,
             _defs_curves_sculpt.snake_hook,
             _defs_curves_sculpt.grow_shrink,
+            _defs_curves_sculpt.pinch,
+            _defs_curves_sculpt.smooth,
+            _defs_curves_sculpt.puff,
+            _defs_curves_sculpt.density,
+            _defs_curves_sculpt.slide,
             None,
             *_tools_annotate,
         ],