Fix [#21694] text input box last character not editable

Font kerning needs to be set in order to get accurate results out of BLF_width(). 
Would be nice if this was more automatic, I've added it to a few other places that 
seem like they need this though it's a little unclear due to the globals etc. Also 
some other minor tweaks when editing text fields.

1 files changed, 12 insertions, 2 deletions

diff --git a/source/blender/editors/interface/interface_style.c b/source/blender/editors/interface/interface_style.c
index ae149cad480..aaebdf5693a 100644
--- a/source/blender/editors/interface/interface_style.c
+++ b/source/blender/editors/interface/interface_style.c
@@ -237,9 +237,19 @@ void uiStyleFontDrawRotated(uiFontStyle *fs, rcti *rect, char *str)
 int UI_GetStringWidth(char *str)
 {
 	uiStyle *style= U.uistyles.first;
+	uiFontStyle *fstyle= &style->widget;
+	int width;
 	
-	uiStyleFontSet(&style->widget);
-	return BLF_width(str);	
+	if (fstyle->kerning==1)	/* for BLF_width */
+		BLF_enable(BLF_KERNING_DEFAULT);
+	
+	uiStyleFontSet(fstyle);
+	width= BLF_width(str);	
+	
+	if (fstyle->kerning==1)
+		BLF_disable(BLF_KERNING_DEFAULT);
+	
+	return width;
 }
 
 /* temporarily, does widget font */