Point cache editing:

- Baked point caches for particles, cloth and softbody can now be edited in particle mode.
	* This overwrites the old cloth/sb cache editmode editing.
	* The type of editable system is chosen from a menu.
	* For particles the current particle system and it's current cache are used.
- Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later.
- All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair.
- Code is not yet optimized for speed, so editing might be slow sometimes.

Known issues:
- Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this?
- As "particle mode" is not only for particles any more some other name would be in place?
- Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading.
- Direct editing of point velocities is not yet implemented, but will be in the future.

Other changes:
- Hair editing doesn't require a "make editable" button press any more.
- Multiple caches in single particle system disables changing emission properties.
- Unified ui code for all point cache panels.
	* Defined in buttons_particle.py and imported for cloth, smoke & softbody.
- Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.)
- Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality.

Bug fixes:
- Unlinking particle settings crashed.
- Deleting the active object with particles in the scene crashed.
- Softbody didn't write point caches correctly on save.

1 files changed, 4 insertions, 46 deletions

diff --git a/source/blender/blenkernel/BKE_particle.h b/source/blender/blenkernel/BKE_particle.h
index cf02efc34ac..e24114cd219 100644
--- a/source/blender/blenkernel/BKE_particle.h
+++ b/source/blender/blenkernel/BKE_particle.h
@@ -109,46 +109,10 @@ typedef struct ParticleCacheKey{
 	float vel[3];
 	float rot[4];
 	float col[3];
+	float time;
 	int steps;
 } ParticleCacheKey;
 
-typedef struct ParticleEditKey{
-	float *co;
-	float *vel;
-	float *rot;
-	float *time;
-
-	float world_co[3];
-	float length;
-	short flag;
-} ParticleEditKey;
-
-typedef struct ParticleUndo {
-	struct ParticleUndo *next, *prev;
-	struct ParticleEditKey **keys;
-	struct KDTree *emitter_field;
-	struct ParticleData *particles;
-	float *emitter_cosnos;
-	int totpart, totkeys;
-	char name[64];
-} ParticleUndo;
-
-typedef struct ParticleEdit {
-	ListBase undo;
-	struct ParticleUndo *curundo;
-
-	ParticleEditKey **keys;
-	int totkeys;
-
-	int *mirror_cache;
-
-	struct KDTree *emitter_field;
-	float *emitter_cosnos;
-
-	char sel_col[3];
-	char nosel_col[3];
-} ParticleEdit;
-
 typedef struct ParticleThreadContext {
 	/* shared */
 	struct Scene *scene;
@@ -240,7 +204,7 @@ int psys_check_enabled(struct Object *ob, struct ParticleSystem *psys);
 void psys_free_boid_rules(struct ListBase *list);
 void psys_free_settings(struct ParticleSettings *part);
 void free_child_path_cache(struct ParticleSystem *psys);
-void psys_free_path_cache(struct ParticleSystem *psys);
+void psys_free_path_cache(struct ParticleSystem *psys, struct PTCacheEdit *edit);
 void free_hair(struct ParticleSystem *psys, int softbody);
 void free_keyed_keys(struct ParticleSystem *psys);
 void psys_free(struct Object * ob, struct ParticleSystem * psys);
@@ -271,9 +235,9 @@ void psys_reset(struct ParticleSystem *psys, int mode);
 
 void psys_find_parents(struct Object *ob, struct ParticleSystemModifierData *psmd, struct ParticleSystem *psys);
 
-void psys_cache_paths(struct Scene *scene, struct Object *ob, struct ParticleSystem *psys, float cfra, int editupdate);
+void psys_cache_paths(struct Scene *scene, struct Object *ob, struct ParticleSystem *psys, float cfra);
+void psys_cache_edit_paths(struct Scene *scene, struct Object *ob, struct PTCacheEdit *edit, float cfra);
 void psys_cache_child_paths(struct Scene *scene, struct Object *ob, struct ParticleSystem *psys, float cfra, int editupdate);
-void psys_update_world_cos(struct Object *ob, struct ParticleSystem *psys);
 int do_guide(struct Scene *scene, struct ParticleKey *state, int pa_num, float time, struct ListBase *lb);
 float psys_get_size(struct Object *ob, struct Material *ma, struct ParticleSystemModifierData *psmd, struct IpoCurve *icu_size, struct ParticleSystem *psys, struct ParticleSettings *part, struct ParticleData *pa, float *vg_size);
 float psys_get_timestep(struct ParticleSettings *part);
@@ -359,12 +323,6 @@ void reset_particle(struct Scene *scene, struct ParticleData *pa, struct Particl
 #define PSYS_EC_PARTICLE	4
 #define PSYS_EC_REACTOR		8
 
-/* ParticleEditKey->flag */
-#define PEK_SELECT		1
-#define PEK_TO_SELECT	2
-#define PEK_TAG			4
-#define PEK_HIDE		8
-
 /* index_dmcache */
 #define DMCACHE_NOTFOUND	-1
 #define DMCACHE_ISCHILD		-2