From 62ac943e3108ad5f70cd5349cd5f1cef98138313 Mon Sep 17 00:00:00 2001
From: Andrew Hale <TrumanBlending@gmail.com>
Date: Fri, 20 Jan 2012 02:10:09 +0000
Subject: - Added functions to remove mesh vertices, edges and faces. These
 functions remove a specified number of elements from the end of their
 respective arrays. For example, removing two vertices removes the last two
 vertices of the mesh. - Minor fixes to descriptions of add edge and add face
 functions.

---
 source/blender/editors/mesh/mesh_data.c | 85 +++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)

(limited to 'source/blender/editors/mesh')

diff --git a/source/blender/editors/mesh/mesh_data.c b/source/blender/editors/mesh/mesh_data.c
index e40c806fd17..7f599fb3458 100644
--- a/source/blender/editors/mesh/mesh_data.c
+++ b/source/blender/editors/mesh/mesh_data.c
@@ -695,6 +695,49 @@ static void mesh_add_faces(Mesh *mesh, int len)
 	mesh->totface= totface;
 }
 
+static void mesh_remove_verts(Mesh *mesh, int len)
+{
+	CustomData vdata;
+	int totvert;
+
+	if(len == 0)
+		return;
+
+	totvert= mesh->totvert - len;
+	CustomData_free_elem(&mesh->vdata, totvert, len);
+
+	/* set final vertex list size */
+	mesh->totvert= totvert;
+}
+
+static void mesh_remove_edges(Mesh *mesh, int len)
+{
+	CustomData edata;
+	int totedge;
+
+	if(len == 0)
+		return;
+
+	totedge= mesh->totedge - len;
+	CustomData_free_elem(&mesh->edata, totedge, len);
+
+	mesh->totedge= totedge;
+}
+
+static void mesh_remove_faces(Mesh *mesh, int len)
+{
+	CustomData fdata;
+	int totface;
+
+	if(len == 0)
+		return;
+
+	totface= mesh->totface - len;	/* new face count */
+	CustomData_free_elem(&mesh->fdata, totface, len);
+
+	mesh->totface= totface;
+}
+
 /*
 void ED_mesh_geometry_add(Mesh *mesh, ReportList *reports, int verts, int edges, int faces)
 {
@@ -742,6 +785,48 @@ void ED_mesh_vertices_add(Mesh *mesh, ReportList *reports, int count)
 	mesh_add_verts(mesh, count);
 }
 
+void ED_mesh_faces_remove(Mesh *mesh, ReportList *reports, int count)
+{
+	if(mesh->edit_mesh) {
+		BKE_report(reports, RPT_ERROR, "Can't remove faces in edit mode");
+		return;
+	}
+	else if(count > mesh->totface) {
+		BKE_report(reports, RPT_ERROR, "Can't remove more faces than the mesh contains");
+		return;
+	}
+
+	mesh_remove_faces(mesh, count);
+}
+
+void ED_mesh_edges_remove(Mesh *mesh, ReportList *reports, int count)
+{
+	if(mesh->edit_mesh) {
+		BKE_report(reports, RPT_ERROR, "Can't remove edges in edit mode");
+		return;
+	}
+	else if(count > mesh->totedge) {
+		BKE_report(reports, RPT_ERROR, "Can't remove more edges than the mesh contains");
+		return;
+	}
+
+	mesh_remove_edges(mesh, count);
+}
+
+void ED_mesh_vertices_remove(Mesh *mesh, ReportList *reports, int count)
+{
+	if(mesh->edit_mesh) {
+		BKE_report(reports, RPT_ERROR, "Can't remove vertices in edit mode");
+		return;
+	}
+	else if(count > mesh->totvert) {
+		BKE_report(reports, RPT_ERROR, "Can't remove more vertices than the mesh contains");
+		return;
+	}
+
+	mesh_remove_verts(mesh, count);
+}
+
 void ED_mesh_calc_normals(Mesh *me)
 {
 	mesh_calc_normals(me->mvert, me->totvert, me->mface, me->totface, NULL);
-- 
cgit v1.2.3