From 65758a9a20807b3ee6ae470f76b4fe3d0cb382f6 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brechtvanlommel@pandora.be>
Date: Tue, 11 Dec 2007 15:03:45 +0000
Subject: Bugfixes for: - Disabled particle modifiers in particle mode. -
 Particle col option without material.

---
 source/blender/src/buttons_editing.c |  7 +++++--
 source/blender/src/buttons_object.c  | 19 ++++++++++++++++++-
 source/blender/src/editparticle.c    | 20 +++++++++++++-------
 3 files changed, 36 insertions(+), 10 deletions(-)

(limited to 'source/blender/src')

diff --git a/source/blender/src/buttons_editing.c b/source/blender/src/buttons_editing.c
index ba648d3f4ad..2a14609dc40 100644
--- a/source/blender/src/buttons_editing.c
+++ b/source/blender/src/buttons_editing.c
@@ -1643,10 +1643,13 @@ static void modifiers_psysEnable(void *ob_v, void *md_v)
 {
 	ParticleSystemModifierData *psmd = (ParticleSystemModifierData*) md_v;
 
-	if(psmd->modifier.mode & eModifierMode_Realtime)
+	if(psmd->modifier.mode & eModifierMode_Realtime) {
 		psmd->psys->flag |= PSYS_ENABLED;
-	else
+	}
+	else {
 		psmd->psys->flag &= ~PSYS_ENABLED;
+		PE_free_particle_edit(psmd->psys);
+	}
 }
 
 static void draw_modifier(uiBlock *block, Object *ob, ModifierData *md, int *xco, int *yco, int index, int cageIndex, int lastCageIndex)
diff --git a/source/blender/src/buttons_object.c b/source/blender/src/buttons_object.c
index e0190ab474f..8d29e044142 100644
--- a/source/blender/src/buttons_object.c
+++ b/source/blender/src/buttons_object.c
@@ -2853,6 +2853,23 @@ void do_effects_panels(unsigned short event)
 			allqueue(REDRAWOOPS, 0);
 		}
 		break;
+	case B_PART_ENABLE:
+		if(psys) {
+			ParticleSystemModifierData *psmd= psys_get_modifier(ob, psys);
+			if(psys->flag & PSYS_ENABLED) {
+				psmd->modifier.mode |= eModifierMode_Realtime;
+			}
+			else {
+				psmd->modifier.mode &= ~eModifierMode_Realtime;
+				PE_free_particle_edit(psys);
+			}
+
+			DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
+			allqueue(REDRAWVIEW3D, 0);
+			allqueue(REDRAWBUTSOBJECT, 0);
+			allqueue(REDRAWBUTSEDIT, 0);
+		}
+		break;
 	case B_PART_RECALC:
 	case B_PART_RECALC_CHILD:
 		if(psys){
@@ -4200,7 +4217,7 @@ static void object_panel_particle_system(Object *ob)
 	butx=0;
 	buty-=5;
 	
-	uiDefButBitI(block, TOG, PSYS_ENABLED, B_PART_REDRAW, "Enabled",	 0,(buty-=buth),100,buth, &psys->flag, 0, 0, 0, 0, "Sets particle system to be calculated and shown");
+	uiDefButBitI(block, TOG, PSYS_ENABLED, B_PART_ENABLE, "Enabled",	 0,(buty-=buth),100,buth, &psys->flag, 0, 0, 0, 0, "Sets particle system to be calculated and shown");
 
 	if(part->type == PART_HAIR){
 		if(psys->flag & PSYS_EDITED)
diff --git a/source/blender/src/editparticle.c b/source/blender/src/editparticle.c
index bb88e9624bf..3611efed995 100644
--- a/source/blender/src/editparticle.c
+++ b/source/blender/src/editparticle.c
@@ -155,9 +155,12 @@ void PE_change_act(void *ob_v, void *act_v)
 	if(act>=0){
 		if((psys=BLI_findlink(&ob->particlesystem,act))) {
 			psys->flag |= PSYS_CURRENT;
-			if(G.f & G_PARTICLEEDIT && !psys->edit)
-				PE_create_particle_edit(ob, psys);
-			PE_recalc_world_cos(ob, psys);
+
+			if(psys->flag & PSYS_ENABLED) {
+				if(G.f & G_PARTICLEEDIT && !psys->edit)
+					PE_create_particle_edit(ob, psys);
+				PE_recalc_world_cos(ob, psys);
+			}
 		}
 	}
 }
@@ -182,7 +185,7 @@ ParticleSystem *PE_get_current(Object *ob)
 		psys->flag |= PSYS_CURRENT;
 	}
 
-	if(psys && ob == OBACT && (G.f & G_PARTICLEEDIT))
+	if(psys && (psys->flag & PSYS_ENABLED) && ob == OBACT && (G.f & G_PARTICLEEDIT))
 		if(psys->part->type == PART_HAIR && psys->flag & PSYS_EDITED)
 			if(psys->edit == NULL)
 				PE_create_particle_edit(ob, psys);
@@ -1098,9 +1101,11 @@ void PE_set_particle_edit(void)
 
 	if((G.f & G_PARTICLEEDIT)==0){
 		if(psys && psys->part->type == PART_HAIR && psys->flag & PSYS_EDITED) {
-			if(psys->edit==0)
-				PE_create_particle_edit(ob, psys);
-			PE_recalc_world_cos(ob, psys);
+			if(psys->flag & PSYS_ENABLED) {
+				if(psys->edit==0)
+					PE_create_particle_edit(ob, psys);
+				PE_recalc_world_cos(ob, psys);
+			}
 		}
 
 		G.f |= G_PARTICLEEDIT;
@@ -2582,6 +2587,7 @@ int PE_brush_particles(void)
 				if(pset->brushtype == PE_BRUSH_ADD && (pset->flag & PE_X_MIRROR))
 					PE_mirror_x(1);
 				PE_recalc_world_cos(ob,psys);
+				psys_free_path_cache(psys);
 				DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 			}
 			else
-- 
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