1 files changed, 87 insertions, 0 deletions

diff --git a/source/blender/editors/space_logic/logic_buttons.c b/source/blender/editors/space_logic/logic_buttons.c
index e159af65c74..9ee170b90d8 100644
--- a/source/blender/editors/space_logic/logic_buttons.c
+++ b/source/blender/editors/space_logic/logic_buttons.c
@@ -56,6 +56,7 @@
 #include "BIF_glutil.h"
 
 #include "RNA_access.h"
+#include "RNA_define.h"
 
 #include "WM_api.h"
 #include "WM_types.h"
@@ -64,6 +65,7 @@
 #include "UI_resources.h"
 #include "UI_view2d.h"
 
+#include "interface_intern.h"
 #include "logic_intern.h"
 
 #if 0
@@ -143,5 +145,90 @@ void LOGIC_OT_properties(wmOperatorType *ot)
 	ot->flag= 0;
 }
 
+/* Remove Logic Bricks Connections */
+/* ********************** Cut Link operator ***************** */
 
+#define LINK_RESOL 12
+static int cut_links_intersect(uiLinkLine *line, float mcoords[][2], int tot)
+{
+	float coord_array[LINK_RESOL+1][2];
+	int i, b;
+	rcti rectlink;
+
+	rectlink.xmin= (int) (line->from->x1 + line->from->x2) / 2;
+	rectlink.ymin= (int) (line->from->y1 + line->from->y2) / 2;
+	rectlink.xmax= (int) (line->to->x1 + line->to->x2) / 2;
+	rectlink.ymax= (int) (line->to->y1 + line->to->y2) / 2;
+
+	if(ui_link_bezier_points(&rectlink, coord_array, LINK_RESOL)){
+		for(i=0; i<tot-1; i++)
+			for(b=0; b<LINK_RESOL-1; b++)
+				if(isect_line_line_v2(mcoords[i], mcoords[i+1], coord_array[b], coord_array[b+1]) > 0)
+					return 1;
+	}
+	return 0;
+}
+
+static int cut_links_exec(bContext *C, wmOperator *op)
+{
+	ARegion *ar= CTX_wm_region(C);
+	float mcoords[256][2];
+	int i= 0;
+	
+	RNA_BEGIN(op->ptr, itemptr, "path") {
+		float loc[2];
+		
+		RNA_float_get_array(&itemptr, "loc", loc);
+		UI_view2d_region_to_view(&ar->v2d, (short)loc[0], (short)loc[1], 
+								 &mcoords[i][0], &mcoords[i][1]);
+		i++;
+		if(i>= 256) break;
+	}
+	RNA_END;
+
+	if (i>1) {
+		uiBlock *block;
+		uiLinkLine *line, *nline;
+		uiBut *but;
+		for(block= ar->uiblocks.first; block; block= block->next)
+		{
+			but= block->buttons.first;
+			while(but) {
+				if(but->type==LINK && but->link) {
+					for(line= but->link->lines.first; line; line= nline) {
+						nline= line->next;
+
+						if(cut_links_intersect(line, mcoords, i)) {
+							ui_delete_linkline(line, but);
+						}
+					}
+				}
+				but= but->next;
+			}
+		}
+		return OPERATOR_FINISHED;
+	}	
+	return OPERATOR_CANCELLED|OPERATOR_PASS_THROUGH;
+}
 
+void LOGIC_OT_links_cut(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+	
+	ot->name= "Cut links";
+	ot->idname= "LOGIC_OT_links_cut";
+	
+	ot->invoke= WM_gesture_lines_invoke;
+	ot->modal= WM_gesture_lines_modal;
+	ot->exec= cut_links_exec;
+	
+	ot->poll= ED_operator_logic_active;
+	
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+	
+	prop= RNA_def_property(ot->srna, "path", PROP_COLLECTION, PROP_NONE);
+	RNA_def_property_struct_runtime(prop, &RNA_OperatorMousePath);
+	/* internal */
+	RNA_def_int(ot->srna, "cursor", BC_KNIFECURSOR, 0, INT_MAX, "Cursor", "", 0, INT_MAX);
+}
\ No newline at end of file