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Diffstat (limited to 'macosx/tkMacOSXScrlbr.c')
-rw-r--r--macosx/tkMacOSXScrlbr.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/macosx/tkMacOSXScrlbr.c b/macosx/tkMacOSXScrlbr.c
index a8018a5..f7f9489 100644
--- a/macosx/tkMacOSXScrlbr.c
+++ b/macosx/tkMacOSXScrlbr.c
@@ -231,17 +231,18 @@ TkpComputeScrollbarGeometry(
* Using code from tkUnixScrlbr.c because Unix scroll bindings are
* driving the display at the script level. All the Mac scrollbar
* has to do is re-draw itself.
+ * There is a difference with Unix however: on macOS later than 10.6
+ * (Snow Leopard) the scrollbars have no arrows at all. This is
+ * handled by having scrollPtr->arrowLength set to zero.
*/
- int width, fieldLength;
+ int fieldLength;
if (scrollPtr->highlightWidth < 0) {
scrollPtr->highlightWidth = 0;
}
scrollPtr->inset = scrollPtr->highlightWidth + scrollPtr->borderWidth;
- width = (scrollPtr->vertical) ? Tk_Width(scrollPtr->tkwin)
- : Tk_Height(scrollPtr->tkwin);
- scrollPtr->arrowLength = width - 2*scrollPtr->inset + 1;
+ scrollPtr->arrowLength = 0;
fieldLength = (scrollPtr->vertical ? Tk_Height(scrollPtr->tkwin)
: Tk_Width(scrollPtr->tkwin))
- 2*(scrollPtr->arrowLength + scrollPtr->inset);