Grease Pencil py-api

* new/remove for GPencil frames/strokes/
* add/pop for points
* clear for frame/layer & grease_pencil
* copy for frame

+ fix for free_gpencil_frames() not clearing the active frame 

1 files changed, 29 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_main_api.c b/source/blender/makesrna/intern/rna_main_api.c
index f5c59aa583a..cd9b3965713 100644
--- a/source/blender/makesrna/intern/rna_main_api.c
+++ b/source/blender/makesrna/intern/rna_main_api.c
@@ -71,6 +71,7 @@
 #include "BKE_speaker.h"
 #include "BKE_movieclip.h"
 #include "BKE_mask.h"
+#include "BKE_gpencil.h"
 
 #include "DNA_armature_types.h"
 #include "DNA_camera_types.h"
@@ -92,6 +93,7 @@
 #include "DNA_node_types.h"
 #include "DNA_movieclip_types.h"
 #include "DNA_mask_types.h"
+#include "DNA_gpencil_types.h"
 
 #include "ED_screen.h"
 
@@ -561,6 +563,19 @@ static void rna_Main_masks_remove(Main *bmain, Mask *mask)
 	/* XXX python now has invalid pointer? */
 }
 
+static void rna_Main_grease_pencil_remove(Main *bmain, ReportList *reports, bGPdata *gpd)
+{
+	if (ID_REAL_USERS(gpd) <= 0) {
+		BKE_gpencil_free(gpd);
+		BKE_libblock_free(&bmain->gpencil, gpd);
+	}
+	else
+		BKE_reportf(reports, RPT_ERROR, "Grease Pencil \"%s\" must have zero users to be removed, found %d",
+		            gpd->id.name + 2, ID_REAL_USERS(gpd));
+
+	/* XXX python now has invalid pointer? */
+}
+
 /* tag functions, all the same */
 static void rna_Main_cameras_tag(Main *bmain, int value) { tag_main_lb(&bmain->camera, value); }
 static void rna_Main_scenes_tag(Main *bmain, int value) { tag_main_lb(&bmain->scene, value); }
@@ -1509,6 +1524,20 @@ void RNA_def_main_gpencil(BlenderRNA *brna, PropertyRNA *cprop)
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
 	RNA_def_property_flag(parm, PROP_REQUIRED);
 
+	func = RNA_def_function(srna, "new", "gpencil_data_addnew");
+	RNA_def_function_flag(func, FUNC_NO_SELF);
+	parm = RNA_def_string(func, "name", "GreasePencil", 0, "", "New name for the datablock");
+	RNA_def_property_flag(parm, PROP_REQUIRED);
+	/* return type */
+	parm = RNA_def_pointer(func, "grease_pencil", "GreasePencil", "", "New grease pencil datablock");
+	RNA_def_function_return(func, parm);
+
+	func = RNA_def_function(srna, "remove", "rna_Main_grease_pencil_remove");
+	RNA_def_function_flag(func, FUNC_USE_REPORTS);
+	RNA_def_function_ui_description(func, "Remove a grease pencil instance from the current blendfile");
+	parm = RNA_def_pointer(func, "grease_pencil", "GreasePencil", "", "Grease Pencil to remove");
+	RNA_def_property_flag(parm, PROP_REQUIRED | PROP_NEVER_NULL);
+
 	prop = RNA_def_property(srna, "is_updated", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
 	RNA_def_property_boolean_funcs(prop, "rna_Main_gpencil_is_updated_get", NULL);