Todo #22395: Restoring Grease Pencil Editing Mode in DopeSheet Editor

This commit restores some basic functionality for retiming Grease
Pencil sketches. Some of the functionality that existed before still
hasn't been restored (namely snap/mirror tools as well as copy+paste),
though it should be possible to use this for basic retiming and
sketch-frame management again.

- There's still a lot of work required to get this up to the standard
of the rest of the animation editor code, as some of this code was
originally just hacked in based on the old-style code.
- Work is already required to not have to directly access the main db
global to get the list of Grease Pencil datablocks to show, but that
can come along with pending cleanups of the filtering code.

1 files changed, 23 insertions, 0 deletions

diff --git a/source/blender/editors/include/ED_gpencil.h b/source/blender/editors/include/ED_gpencil.h
index 78edcc05586..92c090beb8a 100644
--- a/source/blender/editors/include/ED_gpencil.h
+++ b/source/blender/editors/include/ED_gpencil.h
@@ -29,6 +29,7 @@
 #define ED_GPENCIL_H
 
 struct ListBase;
+struct bContext;
 struct bScreen;
 struct ScrArea;
 struct ARegion;
@@ -80,5 +81,27 @@ void draw_gpencil_view3d_ext(struct Scene *scene, struct View3D *v3d, struct ARe
 
 void gpencil_panel_standard(const struct bContext *C, struct Panel *pa);
 
+/* ----------- Grease-Pencil AnimEdit API ------------------ */
+
+void gplayer_make_cfra_list(struct bGPDlayer *gpl, ListBase *elems, short onlysel);
+
+void deselect_gpencil_layers(void *data, short select_mode);
+
+short is_gplayer_frame_selected(struct bGPDlayer *gpl);
+void set_gplayer_frame_selection(struct bGPDlayer *gpl, short mode);
+void select_gpencil_frames(struct bGPDlayer *gpl, short select_mode);
+void select_gpencil_frame(struct bGPDlayer *gpl, int selx, short select_mode);
+void borderselect_gplayer_frames(struct bGPDlayer *gpl, float min, float max, short select_mode);
+
+void delete_gpencil_layers(void);
+void delete_gplayer_frames(struct bGPDlayer *gpl);
+void duplicate_gplayer_frames(struct bGPDlayer *gpd);
+
+void free_gpcopybuf(void);
+void copy_gpdata(void);
+void paste_gpdata(void);
+
+void snap_gplayer_frames(struct bGPDlayer *gpl, short mode);
+void mirror_gplayer_frames(struct bGPDlayer *gpl, short mode);
 
 #endif /*  ED_GPENCIL_H */