GP: New Cutter, Constraints and Segment selection

This commit groups a set of new tools that were tested in grease pencil object branch before moving to master. We decide to do all the development in a separated branch because it could break master during days or weeks before the new tools were ready to deploy.

The commit includes:

- New Cutter tool to trim strokes and help cleaning up drawings.

- New set of constraints and guides to draw different types of shapes. All the credits for this development goes to Charlie Jolly (@charlie), thanks for your help!

- Segment selection mode to select strokes between intersections.

- New operator to change strokes cap mode.

- New option to display only keyframed frames. This option is very important when fill strokes with color.

- Multiple small fixes and tweaks.

Thanks to @pepeland and @mendio for their ideas, tests, reviews and support.

Note: Still pending the final icons for Cutter in Toolbar and Segment Selection in Topbar. @billreynish could help us here?

1 files changed, 17 insertions, 1 deletions

diff --git a/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py b/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py
index 18dff12185f..8f4a2ca1c84 100644
--- a/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py
+++ b/release/scripts/startup/bl_ui/space_toolsystem_toolbar.py
@@ -1078,6 +1078,16 @@ class _defs_gpencil_paint:
         )
 
     @ToolDef.from_fn
+    def cutter():
+        return dict(
+            text="Cutter",
+            icon="ops.gpencil.stroke_cutter",
+            cursor='KNIFE',
+            widget=None,
+            keymap=(),
+        )
+
+    @ToolDef.from_fn
     def line():
         return dict(
             text="Line",
@@ -1141,7 +1151,7 @@ class _defs_gpencil_edit:
     @ToolDef.from_fn
     def select():
         def draw_settings(context, layout, tool):
-            pass
+            layout.prop(context.tool_settings.gpencil_sculpt, "intersection_threshold")
         return dict(
             text="Select",
             icon="ops.generic.select",
@@ -1155,6 +1165,7 @@ class _defs_gpencil_edit:
         def draw_settings(context, layout, tool):
             props = tool.operator_properties("gpencil.select_box")
             layout.prop(props, "mode", expand=True)
+            layout.prop(context.tool_settings.gpencil_sculpt, "intersection_threshold")
         return dict(
             text="Select Box",
             icon="ops.generic.select_box",
@@ -1168,6 +1179,7 @@ class _defs_gpencil_edit:
         def draw_settings(context, layout, tool):
             props = tool.operator_properties("gpencil.select_lasso")
             layout.prop(props, "mode", expand=True)
+            layout.prop(context.tool_settings.gpencil_sculpt, "intersection_threshold")
         return dict(
             text="Select Lasso",
             icon="ops.generic.select_lasso",
@@ -1178,11 +1190,14 @@ class _defs_gpencil_edit:
 
     @ToolDef.from_fn
     def circle_select():
+        def draw_settings(context, layout, tool):
+            layout.prop(context.tool_settings.gpencil_sculpt, "intersection_threshold")
         return dict(
             text="Select Circle",
             icon="ops.generic.select_circle",
             widget=None,
             keymap=(),
+            draw_settings=draw_settings,
         )
 
     @ToolDef.from_fn
@@ -1629,6 +1644,7 @@ class VIEW3D_PT_tools_active(ToolSelectPanelHelper, Panel):
             _defs_view3d_generic.cursor,
             None,
             _defs_gpencil_paint.generate_from_brushes,
+            _defs_gpencil_paint.cutter,
             None,
             _defs_gpencil_paint.line,
             _defs_gpencil_paint.arc,