ED_gizmo_library.hh File Reference

#include "DNA_scene_types.h"

Go to the source code of this file.

Generic Gizmos.
This is exposes predefined gizmos for re-use.
enum	{   ED_GIZMO_ARROW_STYLE_NORMAL = 0 , ED_GIZMO_ARROW_STYLE_CROSS = 1 , ED_GIZMO_ARROW_STYLE_BOX = 2 , ED_GIZMO_ARROW_STYLE_CONE = 3 ,   ED_GIZMO_ARROW_STYLE_PLANE = 4 }
enum	{ ED_GIZMO_ARROW_XFORM_FLAG_INVERTED = (1 << 3) , ED_GIZMO_ARROW_XFORM_FLAG_CONSTRAINED = (1 << 4) }
enum	{ ED_GIZMO_ARROW_DRAW_FLAG_STEM = (1 << 0) , ED_GIZMO_ARROW_DRAW_FLAG_ORIGIN = (1 << 1) }
enum	{   ED_GIZMO_CAGE_XFORM_FLAG_TRANSLATE = (1 << 0) , ED_GIZMO_CAGE_XFORM_FLAG_ROTATE = (1 << 1) , ED_GIZMO_CAGE_XFORM_FLAG_SCALE = (1 << 2) , ED_GIZMO_CAGE_XFORM_FLAG_SCALE_UNIFORM = (1 << 3) ,   ED_GIZMO_CAGE_XFORM_FLAG_SCALE_SIGNED = (1 << 4) }
enum	{ ED_GIZMO_CAGE2D_STYLE_BOX = 0 , ED_GIZMO_CAGE2D_STYLE_BOX_TRANSFORM , ED_GIZMO_CAGE2D_STYLE_CIRCLE }
enum	{ ED_GIZMO_CAGE3D_STYLE_BOX = 0 , ED_GIZMO_CAGE3D_STYLE_CIRCLE = 1 }
enum	{ ED_GIZMO_CAGE_DRAW_FLAG_XFORM_CENTER_HANDLE = (1 << 0) }
enum	{   ED_GIZMO_CAGE2D_PART_TRANSLATE = 0 , ED_GIZMO_CAGE2D_PART_SCALE , ED_GIZMO_CAGE2D_PART_SCALE_MIN_X , ED_GIZMO_CAGE2D_PART_SCALE_MAX_X ,   ED_GIZMO_CAGE2D_PART_SCALE_MIN_Y , ED_GIZMO_CAGE2D_PART_SCALE_MAX_Y , ED_GIZMO_CAGE2D_PART_SCALE_MIN_X_MIN_Y , ED_GIZMO_CAGE2D_PART_SCALE_MIN_X_MAX_Y ,   ED_GIZMO_CAGE2D_PART_SCALE_MAX_X_MIN_Y , ED_GIZMO_CAGE2D_PART_SCALE_MAX_X_MAX_Y , ED_GIZMO_CAGE2D_PART_ROTATE }
enum	{   ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MIN_Z = 0 , ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MID_Z , ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MAX_Z , ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MID_Y_MIN_Z ,   ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MID_Y_MID_Z , ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MID_Y_MAX_Z , ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MAX_Y_MIN_Z , ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MAX_Y_MID_Z ,   ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MAX_Y_MAX_Z , ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MIN_Y_MIN_Z , ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MIN_Y_MID_Z , ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MIN_Y_MAX_Z ,   ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MID_Y_MIN_Z , ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MID_Y_MID_Z , ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MID_Y_MAX_Z , ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MAX_Y_MIN_Z ,   ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MAX_Y_MID_Z , ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MAX_Y_MAX_Z , ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MIN_Y_MIN_Z , ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MIN_Y_MID_Z ,   ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MIN_Y_MAX_Z , ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MID_Y_MIN_Z , ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MID_Y_MID_Z , ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MID_Y_MAX_Z ,   ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MIN_Z , ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MID_Z , ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MAX_Z , ED_GIZMO_CAGE3D_PART_TRANSLATE ,   ED_GIZMO_CAGE3D_PART_ROTATE }
enum	{   ED_GIZMO_DIAL_DRAW_FLAG_NOP = 0 , ED_GIZMO_DIAL_DRAW_FLAG_CLIP = (1 << 0) , ED_GIZMO_DIAL_DRAW_FLAG_FILL = (1 << 1) , ED_GIZMO_DIAL_DRAW_FLAG_FILL_SELECT = (1 << 2) ,   ED_GIZMO_DIAL_DRAW_FLAG_ANGLE_MIRROR = (1 << 3) , ED_GIZMO_DIAL_DRAW_FLAG_ANGLE_START_Y = (1 << 4) , ED_GIZMO_DIAL_DRAW_FLAG_ANGLE_VALUE = (1 << 5) }
enum	{ ED_GIZMO_MOVE_DRAW_FLAG_NOP = 0 , ED_GIZMO_MOVE_DRAW_FLAG_FILL = (1 << 0) , ED_GIZMO_MOVE_DRAW_FLAG_FILL_SELECT = (1 << 1) , ED_GIZMO_MOVE_DRAW_FLAG_ALIGN_VIEW = (1 << 2) }
enum	{ ED_GIZMO_MOVE_STYLE_RING_2D = 0 , ED_GIZMO_MOVE_STYLE_CROSS_2D = 1 }
enum	{ ED_GIZMO_BUTTON_SHOW_OUTLINE = (1 << 0) , ED_GIZMO_BUTTON_SHOW_BACKDROP = (1 << 1) , ED_GIZMO_BUTTON_SHOW_HELPLINE = (1 << 2) }
enum	{ ED_GIZMO_PRIMITIVE_STYLE_PLANE = 0 , ED_GIZMO_PRIMITIVE_STYLE_CIRCLE , ED_GIZMO_PRIMITIVE_STYLE_ANNULUS }
void	ED_gizmotypes_arrow_3d ()
void	ED_gizmotypes_button_2d ()
void	ED_gizmotypes_cage_2d ()
void	ED_gizmotypes_cage_3d ()
void	ED_gizmotypes_dial_3d ()
void	ED_gizmotypes_move_3d ()
void	ED_gizmotypes_facemap_3d ()
void	ED_gizmotypes_preselect_3d ()
void	ED_gizmotypes_primitive_3d ()
void	ED_gizmotypes_blank_3d ()
void	ED_gizmotypes_snap_3d ()
void	ED_gizmo_draw_preset_box (const wmGizmo *gz, const float mat[4][4], int select_id)
void	ED_gizmo_draw_preset_arrow (const wmGizmo *gz, const float mat[4][4], int axis, int select_id)
void	ED_gizmo_draw_preset_circle (const wmGizmo *gz, const float mat[4][4], int axis, int select_id)
void	ED_gizmo_arrow3d_set_ui_range (wmGizmo *gz, float min, float max)
void	ED_gizmo_arrow3d_set_range_fac (wmGizmo *gz, float range_fac)
SnapObjectContext *	ED_gizmotypes_snap_3d_context_ensure (Scene *scene, wmGizmo *gz)
void	ED_gizmotypes_snap_3d_flag_set (wmGizmo *gz, int flag)
bool	ED_gizmotypes_snap_3d_is_enabled (const wmGizmo *gz)
void	ED_gizmotypes_snap_3d_data_get (const bContext *C, wmGizmo *gz, float r_loc[3], float r_nor[3], int r_elem_index[3], eSnapMode *r_snap_elem)

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_ARROW_STYLE_NORMAL
ED_GIZMO_ARROW_STYLE_CROSS
ED_GIZMO_ARROW_STYLE_BOX
ED_GIZMO_ARROW_STYLE_CONE
ED_GIZMO_ARROW_STYLE_PLANE

Definition at line 52 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_ARROW_XFORM_FLAG_INVERTED	Inverted offset during interaction - if set it also sets constrained below.
ED_GIZMO_ARROW_XFORM_FLAG_CONSTRAINED	Clamp arrow interaction to property width.

Definition at line 61 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_ARROW_DRAW_FLAG_STEM
ED_GIZMO_ARROW_DRAW_FLAG_ORIGIN

Definition at line 69 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_CAGE_XFORM_FLAG_TRANSLATE
ED_GIZMO_CAGE_XFORM_FLAG_ROTATE
ED_GIZMO_CAGE_XFORM_FLAG_SCALE
ED_GIZMO_CAGE_XFORM_FLAG_SCALE_UNIFORM
ED_GIZMO_CAGE_XFORM_FLAG_SCALE_SIGNED

Definition at line 91 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_CAGE2D_STYLE_BOX	Display the hover region (edge or corner) of the underlying bounding box.
ED_GIZMO_CAGE2D_STYLE_BOX_TRANSFORM	Display the bounding box plus dots on four corners while hovering, usually used for transforming a 2D shape.
ED_GIZMO_CAGE2D_STYLE_CIRCLE	Display the bounding circle while hovering.

Definition at line 100 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_CAGE3D_STYLE_BOX
ED_GIZMO_CAGE3D_STYLE_CIRCLE

Definition at line 112 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_CAGE_DRAW_FLAG_XFORM_CENTER_HANDLE	Draw a central handle (instead of having the entire area selectable) Needed for large rectangles that we don't want to swallow all events.

Definition at line 119 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

wmGizmo.highlight_part

Enumerator
ED_GIZMO_CAGE2D_PART_TRANSLATE
ED_GIZMO_CAGE2D_PART_SCALE
ED_GIZMO_CAGE2D_PART_SCALE_MIN_X
ED_GIZMO_CAGE2D_PART_SCALE_MAX_X
ED_GIZMO_CAGE2D_PART_SCALE_MIN_Y
ED_GIZMO_CAGE2D_PART_SCALE_MAX_Y
ED_GIZMO_CAGE2D_PART_SCALE_MIN_X_MIN_Y
ED_GIZMO_CAGE2D_PART_SCALE_MIN_X_MAX_Y
ED_GIZMO_CAGE2D_PART_SCALE_MAX_X_MIN_Y
ED_GIZMO_CAGE2D_PART_SCALE_MAX_X_MAX_Y
ED_GIZMO_CAGE2D_PART_ROTATE

Definition at line 126 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

wmGizmo.highlight_part

Enumerator
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MID_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MID_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MID_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MAX_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MAX_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MAX_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MIN_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MIN_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MIN_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MID_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MID_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MID_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MAX_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MAX_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MAX_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MIN_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MIN_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MIN_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MID_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MID_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MID_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MIN_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MID_Z
ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MAX_Z
ED_GIZMO_CAGE3D_PART_TRANSLATE
ED_GIZMO_CAGE3D_PART_ROTATE

Definition at line 145 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_DIAL_DRAW_FLAG_NOP
ED_GIZMO_DIAL_DRAW_FLAG_CLIP
ED_GIZMO_DIAL_DRAW_FLAG_FILL
ED_GIZMO_DIAL_DRAW_FLAG_FILL_SELECT
ED_GIZMO_DIAL_DRAW_FLAG_ANGLE_MIRROR
ED_GIZMO_DIAL_DRAW_FLAG_ANGLE_START_Y
ED_GIZMO_DIAL_DRAW_FLAG_ANGLE_VALUE

Definition at line 184 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_MOVE_DRAW_FLAG_NOP
ED_GIZMO_MOVE_DRAW_FLAG_FILL
ED_GIZMO_MOVE_DRAW_FLAG_FILL_SELECT
ED_GIZMO_MOVE_DRAW_FLAG_ALIGN_VIEW

Definition at line 199 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_MOVE_STYLE_RING_2D
ED_GIZMO_MOVE_STYLE_CROSS_2D

Definition at line 207 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_BUTTON_SHOW_OUTLINE
ED_GIZMO_BUTTON_SHOW_BACKDROP
ED_GIZMO_BUTTON_SHOW_HELPLINE	Draw a line from the origin to the offset (similar to an arrow) sometimes needed to show what the button edits.

Definition at line 215 of file ED_gizmo_library.hh.

anonymous enum

anonymous enum

Enumerator
ED_GIZMO_PRIMITIVE_STYLE_PLANE
ED_GIZMO_PRIMITIVE_STYLE_CIRCLE
ED_GIZMO_PRIMITIVE_STYLE_ANNULUS

Definition at line 228 of file ED_gizmo_library.hh.

Function Documentation

ED_gizmo_arrow3d_set_range_fac()

void ED_gizmo_arrow3d_set_range_fac	(	wmGizmo *	gz,
		float	range_fac )

Define a custom factor for arrow min/max distance.

Note

Needs to be called before WM_gizmo_target_property_def_rna!

Definition at line 510 of file arrow3d_gizmo.cc.

References BLI_assert_msg, ArrowGizmo3D::data, GizmoCommonData::range_fac, WM_gizmo_target_property_find(), and WM_gizmo_target_property_is_valid().

Referenced by WIDGETGROUP_camera_refresh(), WIDGETGROUP_forcefield_setup(), and WIDGETGROUP_light_spot_setup().

ED_gizmo_arrow3d_set_ui_range()

void ED_gizmo_arrow3d_set_ui_range	(	wmGizmo *	gz,
		float	min,
		float	max )

Define a custom property UI range.

Note

Needs to be called before WM_gizmo_target_property_def_rna!

Definition at line 496 of file arrow3d_gizmo.cc.

References BLI_assert, BLI_assert_msg, ArrowGizmo3D::data, GizmoCommonData::is_custom_range_set, GizmoCommonData::max, max, GizmoCommonData::min, min, GizmoCommonData::range, WM_gizmo_target_property_find(), and WM_gizmo_target_property_is_valid().

Referenced by WIDGETGROUP_forcefield_setup().

ED_gizmo_draw_preset_arrow()

void ED_gizmo_draw_preset_arrow	(	const wmGizmo *	gz,
		const float	mat[4][4],
		int	axis,
		int	select_id )

Definition at line 81 of file gizmo_library_presets.cc.

References ed_gizmo_draw_preset_geometry(), OB_POSZ, single_axis_convert(), and wm_gizmo_geom_data_arrow.

ED_gizmo_draw_preset_box()

void ED_gizmo_draw_preset_box	(	const wmGizmo *	gz,
		const float	mat[4][4],
		int	select_id )

Definition at line 76 of file gizmo_library_presets.cc.

References ed_gizmo_draw_preset_geometry(), and wm_gizmo_geom_data_cube.

ED_gizmo_draw_preset_circle()

void ED_gizmo_draw_preset_circle	(	const wmGizmo *	gz,
		const float	mat[4][4],
		int	axis,
		int	select_id )

Definition at line 88 of file gizmo_library_presets.cc.

References ed_gizmo_draw_preset_geometry(), OB_POSZ, single_axis_convert(), and wm_gizmo_geom_data_dial.

ED_gizmotypes_arrow_3d()

void ED_gizmotypes_arrow_3d

(

)

Definition at line 579 of file arrow3d_gizmo.cc.

References GIZMO_GT_arrow_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_blank_3d()

void ED_gizmotypes_blank_3d

(

)

Definition at line 52 of file blank3d_gizmo.cc.

References GIZMO_GT_blank_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_button_2d()

void ED_gizmotypes_button_2d

(

)

Definition at line 431 of file button2d_gizmo.cc.

References GIZMO_GT_button_2d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_cage_2d()

void ED_gizmotypes_cage_2d

(

)

Definition at line 1371 of file cage2d_gizmo.cc.

References GIZMO_GT_cage_2d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_cage_3d()

void ED_gizmotypes_cage_3d

(

)

Definition at line 682 of file cage3d_gizmo.cc.

References GIZMO_GT_cage_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_dial_3d()

void ED_gizmotypes_dial_3d

(

)

Definition at line 729 of file dial3d_gizmo.cc.

References GIZMO_GT_dial_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_facemap_3d()

void ED_gizmotypes_facemap_3d

(

)

ED_gizmotypes_move_3d()

void ED_gizmotypes_move_3d

(

)

Definition at line 472 of file move3d_gizmo.cc.

References GIZMO_GT_move_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_preselect_3d()

void ED_gizmotypes_preselect_3d

(

)

Definition at line 487 of file view3d_gizmo_preselect_type.cc.

References GIZMO_GT_mesh_preselect_edgering_3d(), GIZMO_GT_mesh_preselect_elem_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_primitive_3d()

void ED_gizmotypes_primitive_3d

(

)

Definition at line 290 of file primitive3d_gizmo.cc.

References GIZMO_GT_primitive_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_snap_3d()

void ED_gizmotypes_snap_3d

(

)

Definition at line 391 of file snap3d_gizmo.cc.

References GIZMO_GT_snap_3d(), and WM_gizmotype_append().

Referenced by ED_spacetypes_init().

ED_gizmotypes_snap_3d_context_ensure()

SnapObjectContext * ED_gizmotypes_snap_3d_context_ensure	(	Scene *	scene,
		wmGizmo *	gz )

Definition at line 45 of file snap3d_gizmo.cc.

References ED_view3d_cursor_snap_context_ensure().

Referenced by view3d_ruler_item_mousemove().

ED_gizmotypes_snap_3d_data_get()

void ED_gizmotypes_snap_3d_data_get	(	const bContext *	C,
		wmGizmo *	gz,
		float	r_loc[3],
		float	r_nor[3],
		int	r_elem_index[3],
		eSnapMode *	r_snap_elem )

Definition at line 62 of file snap3d_gizmo.cc.

References copy_v3_v3(), copy_v3_v3_int(), CTX_wm_region(), CTX_wm_window(), ED_view3d_cursor_snap_data_get(), ED_view3d_cursor_snap_data_update(), V3DSnapCursorData::elem_index, wmWindow::eventstate, V3DSnapCursorData::loc, V3DSnapCursorData::nor, SnapGizmo3D::snap_state, and V3DSnapCursorData::type_target.

Referenced by gizmo_ruler_modal(), and view3d_ruler_item_mousemove().

ED_gizmotypes_snap_3d_flag_set()

void ED_gizmotypes_snap_3d_flag_set	(	wmGizmo *	gz,
		int	flag )

Definition at line 50 of file snap3d_gizmo.cc.

References flag, and V3DSnapCursorState::flag.

Referenced by WIDGETGROUP_ruler_setup().

ED_gizmotypes_snap_3d_is_enabled()

bool ED_gizmotypes_snap_3d_is_enabled

(

const wmGizmo *

gz

)

Definition at line 56 of file snap3d_gizmo.cc.

References ED_view3d_cursor_snap_data_get(), and V3DSnapCursorData::is_enabled.

Referenced by gizmo_ruler_modal(), view3d_ruler_add_invoke(), and view3d_ruler_item_mousemove().