Commit: 5604a3d31ddb01c6856f9e85c87111e155137984
Author: Bastien Montagne
Date: Fri Nov 7 10:24:11 2014 +0100
Branches: master
https://developer.blender.org/rB5604a3d31ddb01c6856f9e85c87111e155137984
Fix T42531: Setting 'Undo' steps to '1' causes weirdness.
Do not allow '1' value here, it's useless.
Thanks to Campbell for suggested solution here!
===================================================================
M source/blender/makesrna/intern/rna_userdef.c
===================================================================
diff --git a/source/blender/makesrna/intern/rna_userdef.c
b/source/blender/makesrna/intern/rna_userdef.c
index a23c3ea..ab82c5a 100644
--- a/source/blender/makesrna/intern/rna_userdef.c
+++ b/source/blender/makesrna/intern/rna_userdef.c
@@ -209,6 +209,14 @@ static void rna_userdef_gl_use_16bit_textures(Main *bmain,
Scene *scene, Pointer
rna_userdef_update(bmain, scene, ptr);
}
+static void rna_userdef_undo_steps_set(PointerRNA *ptr, int value)
+{
+ UserDef *userdef = (UserDef *)ptr->data;
+
+ /* Do not allow 1 undo steps, useless and breaks undo/redo process (see
T42531). */
+ userdef->undosteps = (value == 1) ? 2 : value;
+}
+
static void rna_userdef_select_mouse_set(PointerRNA *ptr, int value)
{
UserDef *userdef = (UserDef *)ptr->data;
@@ -3465,6 +3473,7 @@ static void rna_def_userdef_edit(BlenderRNA *brna)
prop = RNA_def_property(srna, "undo_steps", PROP_INT, PROP_NONE);
RNA_def_property_int_sdna(prop, NULL, "undosteps");
RNA_def_property_range(prop, 0, 64);
+ RNA_def_property_int_funcs(prop, NULL, "rna_userdef_undo_steps_set",
NULL);
RNA_def_property_ui_text(prop, "Undo Steps", "Number of undo steps
available (smaller values conserve memory)");
prop = RNA_def_property(srna, "undo_memory_limit", PROP_INT, PROP_NONE);
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