QMacStyle: Fix QSlider appearance on Yosemite

First, we adjust the min and max positions, which HITheme has been
unable to render properly for years. This involves separating the
knob and track rendering. Also, on Yosemite, the tickmarks-less
slider shows a blue progress fill in the track, on the knob's left
side. Finaly, and this is valid for all versions, the tickmarks are
being drawn before the knob (or the whole slider for OS X versions
before 10.10)

Change-Id: I6fce2e298a80858a18fd9fe1e799b65265a8aefd
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/widgets/styles/qmacstyle_mac_p_p.h b/src/widgets/styles/qmacstyle_mac_p_p.h
index 1c5e7b5c45..f36ba2c190 100644
--- a/src/widgets/styles/qmacstyle_mac_p_p.h
+++ b/src/widgets/styles/qmacstyle_mac_p_p.h
@@ -127,7 +127,9 @@ enum QCocoaWidgetKind {
     QCocoaComboBox,     // Editable QComboBox
     QCocoaPopupButton,  // Non-editable QComboBox
     QCocoaPushButton,
-    QCocoaRadioButton
+    QCocoaRadioButton,
+    QCocoaHorizontalSlider,
+    QCocoaVerticalSlider
 };
 
 typedef QPair<QCocoaWidgetKind, QAquaWidgetSize> QCocoaWidget;