Material: Change slider's color to grey when not enabled

When Slider was not enabled it would look exactly the same as when
enabled.

[ChangeLog][Controls][Material] Add visual distinction between an
enabled and not enabled slider.

Task-number: QTBUG-70768
Change-Id: If0d7e5adc19d8bc22a810cb2ba4e57b657ab48d4
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/imports/controls/material/qquickmaterialstyle.cpp b/src/imports/controls/material/qquickmaterialstyle.cpp
index 77a65927..35afeb00 100644
--- a/src/imports/controls/material/qquickmaterialstyle.cpp
+++ b/src/imports/controls/material/qquickmaterialstyle.cpp
@@ -422,6 +422,8 @@ static const QRgb rippleColorLight = 0x10000000;
 static const QRgb rippleColorDark = 0x20FFFFFF;
 static const QRgb spinBoxDisabledIconColorLight = 0xFFCCCCCC;
 static const QRgb spinBoxDisabledIconColorDark = 0xFF666666;
+static const QRgb sliderDisabledColorLight = 0xFF9E9E9E;
+static const QRgb sliderDisabledColorDark = 0xFF616161;
 
 static QQuickMaterialStyle::Theme effectiveTheme(QQuickMaterialStyle::Theme theme)
 {
@@ -1037,6 +1039,11 @@ QColor QQuickMaterialStyle::spinBoxDisabledIconColor() const
     return QColor::fromRgba(m_theme == Light ? spinBoxDisabledIconColorLight : spinBoxDisabledIconColorDark);
 }
 
+QColor QQuickMaterialStyle::sliderDisabledColor() const
+{
+    return QColor::fromRgba(m_theme == Light ? sliderDisabledColorLight : sliderDisabledColorDark);
+}
+
 QColor QQuickMaterialStyle::color(QQuickMaterialStyle::Color color, QQuickMaterialStyle::Shade shade) const
 {
     int count = sizeof(colors) / sizeof(colors[0]);