Merge of trunk into blender 2.5:

svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r12987:17416

Issues:
* GHOST/X11 had conflicting changes. Some code was added in 2.5, which was
  later added in trunk also, but reverted partially, specifically revision
  16683. I have left out this reversion in the 2.5 branch since I think it is
  needed there.
  http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=16683
* Scons had various conflicting changes, I decided to go with trunk version
  for everything except priorities and some library renaming.
* In creator.c, there were various fixes and fixes for fixes related to the -w
  -W and -p options. In 2.5 -w and -W is not coded yet, and -p is done
  differently. Since this is changed so much, and I don't think those fixes
  would be needed in 2.5, I've left them out.
* Also in creator.c: there was code for a python bugfix where the screen was not
  initialized when running with -P. The code that initializes the screen there
  I had to disable, that can't work in 2.5 anymore but left it commented as a
  reminder.

Further I had to disable some new function calls. using src/ and python/, as
was done already in this branch, disabled function calls:
* bpath.c: error reporting
* BME_conversions.c: editmesh conversion functions.
* SHD_dynamic: disabled almost completely, there is no python/.
* KX_PythonInit.cpp and Ketsji/ build files: Mathutils is not there, disabled.
* text.c: clipboard copy call.
* object.c: OB_SUPPORT_MATERIAL.
* DerivedMesh.c and subsurf_ccg, stipple_quarttone.

Still to be done:
* Go over files and functions that were moved to a different location but could
  still use changes that were done in trunk.

1 files changed, 125 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_graph.h b/source/blender/blenlib/BLI_graph.h
new file mode 100644
index 00000000000..160c2e04cf5
--- /dev/null
+++ b/source/blender/blenlib/BLI_graph.h
@@ -0,0 +1,125 @@
+#ifndef BLI_GRAPH_H_
+#define BLI_GRAPH_H_
+
+#include "DNA_listBase.h"
+
+struct BGraph;
+struct BNode;
+struct BArc;
+
+struct RadialArc;
+
+typedef void (*FreeArc)(struct BArc*);
+typedef void (*FreeNode)(struct BNode*);
+typedef void (*RadialSymmetry)(struct BNode* root_node, struct RadialArc* ring, int total);
+typedef void (*AxialSymmetry)(struct BNode* root_node, struct BNode* node1, struct BNode* node2, struct BArc* arc1, struct BArc* arc2);
+
+/* IF YOU MODIFY THOSE TYPES, YOU NEED TO UPDATE ALL THOSE THAT "INHERIT" FROM THEM
+ * 
+ * RigGraph, ReebGraph
+ * 
+ * */
+
+typedef struct BGraph {
+	ListBase	arcs;
+	ListBase	nodes;
+	
+	float length;
+	
+	/* function pointer to deal with custom fonctionnality */
+	FreeArc			free_arc;
+	FreeNode		free_node;
+	RadialSymmetry	radial_symmetry;
+	AxialSymmetry	axial_symmetry;
+} BGraph;
+
+typedef struct BNode {
+	void *next, *prev;
+	float p[3];
+	int flag;
+
+	int degree;
+	struct BArc **arcs;
+	
+	int subgraph_index;
+
+	int symmetry_level;
+	int symmetry_flag;
+	float symmetry_axis[3];
+} BNode;
+
+typedef struct BArc {
+	void *next, *prev;
+	struct BNode *head, *tail;
+	int flag;
+
+	float length;
+
+	int symmetry_level;
+	int symmetry_group;
+	int symmetry_flag;
+} BArc;
+
+/* Helper structure for radial symmetry */
+typedef struct RadialArc
+{
+	struct BArc *arc; 
+	float n[3]; /* normalized vector joining the nodes of the arc */
+} RadialArc;
+
+BNode *BLI_otherNode(BArc *arc, BNode *node);
+
+void BLI_freeNode(BGraph *graph, BNode *node);
+void BLI_removeNode(BGraph *graph, BNode *node);
+
+void BLI_removeArc(BGraph *graph, BArc *arc);
+
+void BLI_flagNodes(BGraph *graph, int flag);
+void BLI_flagArcs(BGraph *graph, int flag);
+
+int BLI_hasAdjacencyList(BGraph *rg);
+void BLI_buildAdjacencyList(BGraph *rg);
+void BLI_rebuildAdjacencyList(BGraph* rg);
+void BLI_rebuildAdjacencyListForNode(BGraph* rg, BNode *node);
+void BLI_freeAdjacencyList(BGraph *rg);
+
+int BLI_FlagSubgraphs(BGraph *graph);
+void BLI_ReflagSubgraph(BGraph *graph, int old_subgraph, int new_subgraph);
+
+#define SHAPE_RADIX 10 /* each shape level is encoded this base */
+
+int BLI_subtreeShape(BGraph *graph, BNode *node, BArc *rootArc, int include_root);
+float BLI_subtreeLength(BNode *node);
+void BLI_calcGraphLength(BGraph *graph);
+
+void BLI_replaceNode(BGraph *graph, BNode *node_src, BNode *node_replaced);
+void BLI_replaceNodeInArc(BGraph *graph, BArc *arc, BNode *node_src, BNode *node_replaced);
+void BLI_removeDoubleNodes(BGraph *graph, float limit);
+BNode * BLI_FindNodeByPosition(BGraph *graph, float *p, float limit);
+
+BArc * BLI_findConnectedArc(BGraph *graph, BArc *arc, BNode *v);
+
+int	BLI_isGraphCyclic(BGraph *graph);
+
+/*------------ Symmetry handling ------------*/
+void BLI_markdownSymmetry(BGraph *graph, BNode *root_node, float limit);
+
+void BLI_mirrorAlongAxis(float v[3], float center[3], float axis[3]);
+
+/* BNode symmetry flags */
+#define SYM_TOPOLOGICAL	1
+#define SYM_PHYSICAL	2
+
+/* the following two are exclusive */
+#define SYM_AXIAL		4
+#define SYM_RADIAL		8
+
+/* BArc symmetry flags
+ * 
+ * axial symetry sides */
+#define SYM_SIDE_POSITIVE		1
+#define SYM_SIDE_NEGATIVE		2
+/* Anything higher is the order in radial symmetry */
+#define SYM_SIDE_RADIAL			3
+
+#endif /*BLI_GRAPH_H_*/