Fix T43111: Node Editor (Slider) Draw Glitch

* don't allow Node Editor input max value to be less then min value
* avoid the num slider drawing glitch if softmin equals softmax
* assert if softmax/hardmax is smaller than softmin/hardmin

With this, we sort of allow softmin/hardmin and softmax/hardmax being the same.

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index e672037837a..fa8d2669161 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -2199,6 +2199,10 @@ static void rna_NodeSocketStandard_float_range(PointerRNA *ptr, float *min, floa
 	bNodeSocketValueFloat *dval = sock->default_value;
 	int subtype = sock->typeinfo->subtype;
 	
+	if (dval->max < dval->min) {
+		dval->max = dval->min;
+	}
+	
 	*min = (subtype == PROP_UNSIGNED ? 0.0f : -FLT_MAX);
 	*max = FLT_MAX;
 	*softmin = dval->min;
@@ -2211,6 +2215,10 @@ static void rna_NodeSocketStandard_int_range(PointerRNA *ptr, int *min, int *max
 	bNodeSocketValueInt *dval = sock->default_value;
 	int subtype = sock->typeinfo->subtype;
 	
+	if (dval->max < dval->min) {
+		dval->max = dval->min;
+	}
+	
 	*min = (subtype == PROP_UNSIGNED ? 0 : INT_MIN);
 	*max = INT_MAX;
 	*softmin = dval->min;
@@ -2222,6 +2230,10 @@ static void rna_NodeSocketStandard_vector_range(PointerRNA *ptr, float *min, flo
 	bNodeSocket *sock = ptr->data;
 	bNodeSocketValueVector *dval = sock->default_value;
 	
+	if (dval->max < dval->min) {
+		dval->max = dval->min;
+	}
+	
 	*min = -FLT_MAX;
 	*max = FLT_MAX;
 	*softmin = dval->min;