General particle bug fixes + few small goodies

The goodies:
* Curves can be used as normal dynamic effectors too with 
  the new "curve" field shape.
* Group visualization has optional duplication counts for
  each object in the specified group.
* Object & group visualizations, which are done without
  taking the dupliobject's global position into account
  (unless the whole group is used). This is much nicer than
  the previous behavior, but I added a "Use Global Location"
  option for those who want to use it the old way.
* The active particle system's particles are now drawn a 
  with theme coloured outline instead of pure white.
* Added object aligned velocity factors (buttons categorized
  and re-organized too).

Bug fixes:
* Absorption didn't work as the ui toggle button was forgotten.
* Some other force field ui tweaks.
* Crash after adding children and changing trails count.
* Display types "cross" and "axis" crashed.
* Particles weren't drawn with correct coloring.
* Billboards didn't update properly in viewport to camera
  location changes.
* Particle rotation wasn't recreated correctly from point cache.
* Changing particles amount crashed sometimes.
* Some files with child hair crashed on loading.
* Compiler warning fixes.
* Adding boids crashed on frame 1;

1 files changed, 76 insertions, 0 deletions

diff --git a/source/blender/editors/physics/particle_object.c b/source/blender/editors/physics/particle_object.c
index cef630b6711..1dc08a162b7 100644
--- a/source/blender/editors/physics/particle_object.c
+++ b/source/blender/editors/physics/particle_object.c
@@ -348,6 +348,82 @@ void PARTICLE_OT_target_move_down(wmOperatorType *ot)
 	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
 }
 
+/************************ move up particle dupliweight operator *********************/
+
+static int dupliob_move_up_exec(bContext *C, wmOperator *op)
+{
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= ptr.data;
+	ParticleSettings *part;
+	ParticleDupliWeight *dw;
+
+	if(!psys)
+		return OPERATOR_CANCELLED;
+
+	part = psys->part;
+	for(dw=part->dupliweights.first; dw; dw=dw->next) {
+		if(dw->flag & PART_DUPLIW_CURRENT && dw->prev) {
+			BLI_remlink(&part->dupliweights, dw);
+			BLI_insertlink(&part->dupliweights, dw->prev->prev, dw);
+
+			WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, NULL);
+			break;
+		}
+	}
+	
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_dupliob_move_up(wmOperatorType *ot)
+{
+	ot->name= "Move Up Dupli Object";
+	ot->idname= "PARTICLE_OT_dupliob_move_up";
+	ot->description= "Move dupli object up in the list.";
+	
+	ot->exec= dupliob_move_up_exec;
+	
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/************************ move down particle dupliweight operator *********************/
+
+static int dupliob_move_down_exec(bContext *C, wmOperator *op)
+{
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= ptr.data;
+	ParticleSettings *part;
+	ParticleDupliWeight *dw;
+
+	if(!psys)
+		return OPERATOR_CANCELLED;
+
+	part = psys->part;
+	for(dw=part->dupliweights.first; dw; dw=dw->next) {
+		if(dw->flag & PART_DUPLIW_CURRENT && dw->next) {
+			BLI_remlink(&part->dupliweights, dw);
+			BLI_insertlink(&part->dupliweights, dw->next, dw);
+
+			WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, NULL);
+			break;
+		}
+	}
+	
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_dupliob_move_down(wmOperatorType *ot)
+{
+	ot->name= "Move Down Dupli Object";
+	ot->idname= "PARTICLE_OT_dupliob_move_down";
+	ot->description= "Move dupli object down in the list.";
+	
+	ot->exec= dupliob_move_down_exec;
+	
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
 /************************ connect/disconnect hair operators *********************/
 
 static void disconnect_hair(Scene *scene, Object *ob, ParticleSystem *psys)