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authorculler <culler>2019-06-29 18:28:48 (GMT)
committerculler <culler>2019-06-29 18:28:48 (GMT)
commitfc77051b61693815b705692a1a84b09bc138c782 (patch)
treefd1b65c865a4ac04455a5c4ac1b96b4ebf150668 /macosx/tkMacOSXScrlbr.c
parentffd1fafe9e6704cfa4eedd0e469c7461176c00bc (diff)
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Adjust minimum thumb size
Diffstat (limited to 'macosx/tkMacOSXScrlbr.c')
-rw-r--r--macosx/tkMacOSXScrlbr.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/macosx/tkMacOSXScrlbr.c b/macosx/tkMacOSXScrlbr.c
index 06fb2b7..c0fd704 100644
--- a/macosx/tkMacOSXScrlbr.c
+++ b/macosx/tkMacOSXScrlbr.c
@@ -25,7 +25,7 @@
* always easy to grab with the mouse).
*/
-#define MIN_SLIDER_LENGTH 8
+#define MIN_SLIDER_LENGTH 18
#define MIN_GAP 4
/*
@@ -161,7 +161,14 @@ TkpCreateScrollbar(
*--------------------------------------------------------------
*/
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
+#if MAC_OS_X_VERSION_MAX_ALLOWED > 1080
+
+/*
+ * This stand-alone drawing function is used on macOS 10.9 and newer because
+ * the HIToolbox does not draw the scrollbar thumb at the expected size on
+ * those systems. The thumb is drawn too large, causing a mouse click on the
+ * thumb to be interpreted as a mouse click in the trough.
+ */
static void drawMacScrollbar(
TkScrollbar *scrollPtr,
@@ -170,11 +177,8 @@ static void drawMacScrollbar(
{
MacDrawable *macWin = (MacDrawable *) Tk_WindowId(scrollPtr->tkwin);
NSView *view = TkMacOSXDrawableView(macWin);
- NSColorSpace *deviceRGB = [NSColorSpace deviceRGBColorSpace];
CGPathRef path;
CGPoint inner[2], outer[2];
- NSColor *troughColor, *thumbColor;
- CGFloat *rgba;
CGRect troughBounds = msPtr->info.bounds, thumbBounds;
troughBounds.origin.y = [view bounds].size.height -
(troughBounds.origin.y + troughBounds.size.height);
@@ -296,7 +300,7 @@ TkpDisplayScrollbar(
HIThemeDrawTrack(&msPtr->info, 0, dc.context,
kHIThemeOrientationNormal);
} else {
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
+#if MAC_OS_X_VERSION_MAX_ALLOWED > 1080
/*
* Switch back to NSView coordinates and draw a modern scrollbar.