bmesh py api:

added per loop UV layer access

source/blender/python/bmesh/CMakeLists.txt

@@ -35,12 +35,14 @@ set(SRC
 	bmesh_py_api.c
 	bmesh_py_types.c
 	bmesh_py_types_customdata.c
+	bmesh_py_types_meshdata.c
 	bmesh_py_types_select.c
 	bmesh_py_utils.c
 
 	bmesh_py_api.h
 	bmesh_py_types.h
 	bmesh_py_types_customdata.h
+	bmesh_py_types_meshdata.h
 	bmesh_py_types_select.h
 	bmesh_py_utils.h
 )

source/blender/python/bmesh/bmesh_py_api.c

@@ -36,6 +36,7 @@
 #include "bmesh_py_types.h"
 #include "bmesh_py_types_select.h"
 #include "bmesh_py_types_customdata.h"
+#include "bmesh_py_types_meshdata.h"
 
 #include "bmesh_py_utils.h"
 
@@ -133,6 +134,7 @@ PyObject *BPyInit_bmesh(void)
 	BPy_BM_init_types();
 	BPy_BM_init_types_select();
 	BPy_BM_init_types_customdata();
+	BPy_BM_init_types_meshdata();
 
 	mod = PyModule_Create(&BPy_BM_module_def);
 

source/blender/python/bmesh/bmesh_py_types.c

@@ -47,6 +47,7 @@
 #include "bmesh_py_types.h" /* own include */
 #include "bmesh_py_types_select.h"
 #include "bmesh_py_types_customdata.h"
+#include "bmesh_py_types_meshdata.h"
 
 /* Common Flags
  * ************ */
@@ -2770,6 +2771,7 @@ PyObject *BPyInit_bmesh_types(void)
 #define mod_type_add(s, t) \
 	PyModule_AddObject(s, t.tp_name, (PyObject *)&t); Py_INCREF((PyObject *)&t)
 
+	/* bmesh_py_types.c */
 	mod_type_add(submodule, BPy_BMesh_Type);
 	mod_type_add(submodule, BPy_BMVert_Type);
 	mod_type_add(submodule, BPy_BMEdge_Type);
@@ -2781,11 +2783,15 @@ PyObject *BPyInit_bmesh_types(void)
 	mod_type_add(submodule, BPy_BMFaceSeq_Type);
 	mod_type_add(submodule, BPy_BMLoopSeq_Type);
 	mod_type_add(submodule, BPy_BMIter_Type);
+	/* bmesh_py_types_select.c */
 	mod_type_add(submodule, BPy_BMEditSelSeq_Type);
 	mod_type_add(submodule, BPy_BMEditSelIter_Type);
+	/* bmesh_py_types_customdata.c */
 	mod_type_add(submodule, BPy_BMLayerAccess_Type);
 	mod_type_add(submodule, BPy_BMLayerCollection_Type);
 	mod_type_add(submodule, BPy_BMLayerItem_Type);
+	/* bmesh_py_types_meshdata.c */
+	mod_type_add(submodule, BPy_BMLoopUV_Type);
 
 #undef mod_type_add
 

source/blender/python/bmesh/bmesh_py_types_customdata.c

@@ -39,6 +39,7 @@
 
 #include "bmesh_py_types.h"
 #include "bmesh_py_types_customdata.h"
+#include "bmesh_py_types_meshdata.h"
 
 #include "../mathutils/mathutils.h"
 
@@ -649,8 +650,7 @@ PyObject *BPy_BMLayerItem_GetItem(BPy_BMElem *py_ele, BPy_BMLayerItem *py_layer)
 		}
 		case CD_MLOOPUV:
 		{
-			ret = Py_NotImplemented; /* TODO */
+			ret = BPy_BMLoopUV_CreatePyObject(value);
-			Py_INCREF(ret);
 			break;
 		}
 		case CD_MLOOPCOL:

source/blender/python/bmesh/bmesh_py_types_meshdata.c

@@ -0,0 +1,132 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2012 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Campbell Barton
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/python/bmesh/bmesh_py_types_meshdata.c
+ *  \ingroup pybmesh
+ *
+ * This file defines customdata types which can't be accessed as primitive
+ * python types such as MDeformVert, MLoopUV, MTexPoly
+ */
+
+#include <Python.h>
+
+#include "../mathutils/mathutils.h"
+
+#include "DNA_meshdata_types.h"
+
+#include "BLI_utildefines.h"
+#include "BLI_math_vector.h"
+
+/* Mesh Loop UV
+ * ************ */
+
+typedef struct BPy_BMLoopUV {
+	PyObject_VAR_HEAD
+	MLoopUV *data;
+} BPy_BMLoopUV;
+
+static PyObject *bpy_bmloopuv_uv_get(BPy_BMLoopUV *self, void *UNUSED(closure))
+{
+	return Vector_CreatePyObject(self->data->uv, 2, Py_WRAP, NULL);
+}
+
+static int bpy_bmloopuv_uv_set(BPy_BMLoopUV *self, PyObject *value, void *UNUSED(closure))
+{
+	float tvec[2];
+	if (mathutils_array_parse(tvec, 2, 2, value, "BMLoop.uv") != -1) {
+		copy_v2_v2(self->data->uv, tvec);
+		return 0;
+	}
+	else {
+		return -1;
+	}
+}
+
+static PyObject *bpy_bmloopuv_flag_get(BPy_BMLoopUV *self, void *flag_p)
+{
+	const int flag = GET_INT_FROM_POINTER(flag_p);
+	return PyBool_FromLong(self->data->flag & flag);
+}
+
+static int bpy_bmloopuv_flag_set(BPy_BMLoopUV *self, PyObject *value, void *flag_p)
+{
+	const int flag = GET_INT_FROM_POINTER(flag_p);
+
+	switch (PyLong_AsLong(value)) {
+		case TRUE:
+			self->data->flag |= flag;
+			return 0;
+		case FALSE:
+			self->data->flag &= ~flag;
+			return 0;
+		default:
+			PyErr_SetString(PyExc_TypeError,
+			                "expected a boolean type 0/1");
+			return -1;
+	}
+}
+
+static PyGetSetDef bpy_bmloopuv_getseters[] = {
+    /* attributes match rna_def_mloopuv  */
+    {(char *)"uv",          (getter)bpy_bmloopuv_uv_get,   (setter)bpy_bmloopuv_uv_set,   (char *)NULL, NULL},
+    {(char *)"pin_uv",      (getter)bpy_bmloopuv_flag_get, (setter)bpy_bmloopuv_flag_set, (char *)NULL, (void *)MLOOPUV_PINNED},
+    {(char *)"select",      (getter)bpy_bmloopuv_flag_get, (setter)bpy_bmloopuv_flag_set, (char *)NULL, (void *)MLOOPUV_VERTSEL},
+    {(char *)"select_edge", (getter)bpy_bmloopuv_flag_get, (setter)bpy_bmloopuv_flag_set, (char *)NULL, (void *)MLOOPUV_EDGESEL},
+
+    {NULL, NULL, NULL, NULL, NULL} /* Sentinel */
+};
+
+PyTypeObject BPy_BMLoopUV_Type = {{{0}}}; /* bm.loops.layers.uv.active */
+
+static void bm_init_types_bmloopuv(void)
+{
+	BPy_BMLoopUV_Type.tp_basicsize = sizeof(BPy_BMLoopUV);
+
+	BPy_BMLoopUV_Type.tp_name = "BMLoopUV";
+
+	BPy_BMLoopUV_Type.tp_doc = NULL; // todo
+
+	BPy_BMLoopUV_Type.tp_getset = bpy_bmloopuv_getseters;
+
+	BPy_BMLoopUV_Type.tp_flags = Py_TPFLAGS_DEFAULT;
+
+	PyType_Ready(&BPy_BMLoopUV_Type);
+}
+
+PyObject *BPy_BMLoopUV_CreatePyObject(struct MLoopUV *data)
+{
+	BPy_BMLoopUV *self = PyObject_New(BPy_BMLoopUV, &BPy_BMLoopUV_Type);
+	self->data = data;
+	return (PyObject *)self;
+}
+
+/* --- End Mesh Loop UV --- */
+
+
+/* call to init all types */
+void BPy_BM_init_types_meshdata(void)
+{
+	bm_init_types_bmloopuv();
+}

source/blender/python/bmesh/bmesh_py_types_meshdata.h

@@ -0,0 +1,41 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2012 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Campbell Barton
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/python/bmesh/bmesh_py_types_meshdata.h
+ *  \ingroup pybmesh
+ */
+
+#ifndef __BMESH_PY_TYPES_MESHDATA_H__
+#define __BMESH_PY_TYPES_MESHDATA_H__
+
+extern PyTypeObject BPy_BMLoopUV_Type;
+
+struct MLoopUV;
+
+PyObject *BPy_BMLoopUV_CreatePyObject(struct MLoopUV *data);
+
+void BPy_BM_init_types_meshdata(void);
+
+#endif /* __BMESH_PY_TYPES_MESHDATA_H__ */