From ba5880aa7352e36effea7e3a16148245fbc84f0b Mon Sep 17 00:00:00 2001
From: Andrea Weikert <elubie@gmx.net>
Date: Thu, 15 Jun 2006 11:23:51 +0000
Subject: [PATCH] === preview icons === - changed preview type of halo
 materials - halo materials are also shown with alpha=255 like in preview
 window

---
 source/blender/src/interface_icons.c | 23 ++++++++++++++++-------
 source/blender/src/previewrender.c   |  7 ++++++-
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/source/blender/src/interface_icons.c b/source/blender/src/interface_icons.c
index dd131a61011..9d759b7aa6d 100644
--- a/source/blender/src/interface_icons.c
+++ b/source/blender/src/interface_icons.c
@@ -716,6 +716,15 @@ static void icon_from_image(Image *img, RenderInfo *ri)
 	}
 }
 
+static void set_alpha(char* cp, int sizex, int sizey, char alpha) 
+{
+	int x,y;
+	for(y=0; y<sizey; y++) {
+		for(x=0; x<sizex; x++, cp+=4) {
+			cp[3]= alpha;
+		}
+	}
+}
 
 /* only called when icon has changed */
 /* only call with valid pointer from BIF_icon_draw */
@@ -743,13 +752,13 @@ static void icon_set_image(ID *id, DrawInfo *di)
 		/* world is rendered with alpha=0, so it wasn't displayed 
 		   this could be render option for sky to, for later */
 		if (GS(id->name) == ID_WO) { 
-			char* cp= (char *)(ri.rect);
-			int x,y;
-			for(y=0; y<ri.pr_recty; y++) {
-				for(x=0; x<ri.pr_rectx; x++, cp+=4) {
-					cp[3]= 255;
-				}
-			}
+			set_alpha( (char*) ri.rect, ri.pr_rectx, ri.pr_recty, 255);
+		} 
+		else if (GS(id->name) == ID_MA) {
+			Material* mat = (Material*)id;
+			if (mat->mode & MA_HALO) {
+				set_alpha( (char*) ri.rect, ri.pr_rectx, ri.pr_recty, 255);
+			} 
 		}
 	}
 
diff --git a/source/blender/src/previewrender.c b/source/blender/src/previewrender.c
index 44ce6b2333d..3cffc37d454 100644
--- a/source/blender/src/previewrender.c
+++ b/source/blender/src/previewrender.c
@@ -292,7 +292,12 @@ static Scene *preview_prepare_scene(RenderInfo *ri, int id_type, ID *id, int pr_
 
 				
 				if(pr_method==PR_ICON_RENDER) {
-					sce->lay= 1<<MA_SPHERE_A;
+					if (mat->mode & MA_HALO) {
+						sce->lay= 1<<MA_FLAT;
+					} 
+					else {
+						sce->lay= 1<<MA_SPHERE_A;
+					}
 				}
 				else {
 					sce->lay= 1<<mat->pr_type;