code cleanup: add WM_gesture_lasso_path_to_array, move mouse path to array conversion there.

2 files changed, 39 insertions, 0 deletions

diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h
index f3872cb9594..3bbd5583aa5 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -259,6 +259,7 @@ int			WM_gesture_lines_cancel(struct bContext *C, struct wmOperator *op);
 int			WM_gesture_lasso_invoke(struct bContext *C, struct wmOperator *op, struct wmEvent *event);
 int			WM_gesture_lasso_modal(struct bContext *C, struct wmOperator *op, struct wmEvent *event);
 int			WM_gesture_lasso_cancel(struct bContext *C, struct wmOperator *op);
+int       (*WM_gesture_lasso_path_to_array(struct bContext *C, struct wmOperator *op, int *mcords_tot))[2];
 int			WM_gesture_straightline_invoke(struct bContext *C, struct wmOperator *op, struct wmEvent *event);
 int			WM_gesture_straightline_modal(struct bContext *C, struct wmOperator *op, struct wmEvent *event);
 int			WM_gesture_straightline_cancel(struct bContext *C, struct wmOperator *op);
diff --git a/source/blender/windowmanager/intern/wm_operators.c b/source/blender/windowmanager/intern/wm_operators.c
index 27c4a38c131..c18625c0168 100644
--- a/source/blender/windowmanager/intern/wm_operators.c
+++ b/source/blender/windowmanager/intern/wm_operators.c
@@ -2789,6 +2789,44 @@ int WM_gesture_lines_cancel(bContext *C, wmOperator *op)
 	return OPERATOR_CANCELLED;
 }
 
+/**
+ * helper function, we may want to add options for conversion to view space
+ *
+ * caller must free.
+ */
+int (*WM_gesture_lasso_path_to_array(bContext *UNUSED(C), wmOperator *op, int *mcords_tot))[2]
+{
+	PropertyRNA *prop = RNA_struct_find_property(op->ptr, "path");
+	int (*mcords)[2] = NULL;
+	BLI_assert(prop != NULL);
+
+	if (prop) {
+		const int len = RNA_property_collection_length(op->ptr, prop);
+
+		if (len) {
+			int i = 0;
+			mcords = MEM_mallocN(sizeof(int) * 2 * len, __func__);
+
+			RNA_PROP_BEGIN(op->ptr, itemptr, prop)
+			{
+				float loc[2];
+
+				RNA_float_get_array(&itemptr, "loc", loc);
+				mcords[i][0] = (int)loc[0];
+				mcords[i][1] = (int)loc[1];
+				i++;
+			}
+			RNA_PROP_END;
+		}
+		*mcords_tot = len;
+	}
+	else {
+		*mcords_tot = 0;
+	}
+
+	return mcords;
+}
+
 #if 0
 /* template to copy from */