Bugfix:

Material buttons: "Strands" menu closed after each button usage. Should
remain open until ENTER or ESC pressed or mouse leaves menu.

1 files changed, 5 insertions, 4 deletions

diff --git a/source/blender/src/buttons_shading.c b/source/blender/src/buttons_shading.c
index 59b0cbbb2f2..891820d63a8 100644
--- a/source/blender/src/buttons_shading.c
+++ b/source/blender/src/buttons_shading.c
@@ -3411,10 +3411,11 @@ static uiBlock *strand_menu(void *mat_v)
 	uiDefBut(block, LABEL, 0, "", 0, 0, 250, 100, NULL,  0, 0, 0, 0, "");
 	
 	uiBlockBeginAlign(block);
-	uiDefButBitI(block, TOG, MA_TANGENT_STR, B_MATPRV,	"Use Tangent Shading",	10,70,230,20, &(ma->mode), 0, 0, 0, 0, "Uses direction of strands as normal for tangent-shading");
-	uiDefButF(block, NUMSLI, B_MATPRV, "Start ",	10, 50, 230,20,   &ma->strand_sta, 0.25, 20.0, 2, 0, "Start size of strands in pixels");
-	uiDefButF(block, NUMSLI, B_MATPRV, "End ",		10, 30, 230,20,  &ma->strand_end, 0.25, 10.0, 2, 0, "End size of strands in pixels");
-	uiDefButF(block, NUMSLI, B_MATPRV, "Shape ",	10, 10, 230,20,  &ma->strand_ease, -0.9, 0.9, 2, 0, "Shape of strands, positive value makes it rounder, negative makes it spiky");
+					/* event return 0, to prevent menu to close */
+	uiDefButBitI(block, TOG, MA_TANGENT_STR, 0,	"Use Tangent Shading",	10,70,230,20, &(ma->mode), 0, 0, 0, 0, "Uses direction of strands as normal for tangent-shading");
+	uiDefButF(block, NUMSLI, 0, "Start ",	10, 50, 230,20,   &ma->strand_sta, 0.25, 20.0, 2, 0, "Start size of strands in pixels");
+	uiDefButF(block, NUMSLI, 0, "End ",		10, 30, 230,20,  &ma->strand_end, 0.25, 10.0, 2, 0, "End size of strands in pixels");
+	uiDefButF(block, NUMSLI, 0, "Shape ",	10, 10, 230,20,  &ma->strand_ease, -0.9, 0.9, 2, 0, "Shape of strands, positive value makes it rounder, negative makes it spiky");
 
 	uiBlockSetDirection(block, UI_TOP);