Prepare for replacing Qt::Appearance with Qt::ColorScheme

Based on discussions in the 6.5 API review, where we concluded that
'appearance' is too general. Instead, we follow the CSS standard
and use the term 'color scheme'.

This patch is a first step, only introducing the new API, so that
submodules can port over. The next step will be to remove the old
API and transition the docs and platform themes.

Pick-to: 6.5
Change-Id: I43cdb6bb1ccb49c535c06b1897821467fd83ca60
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gui/kernel/qstylehints.h b/src/gui/kernel/qstylehints.h
index 779bed67d8..cae5a64f85 100644
--- a/src/gui/kernel/qstylehints.h
+++ b/src/gui/kernel/qstylehints.h
@@ -53,6 +53,7 @@ class Q_GUI_EXPORT QStyleHints : public QObject
                FINAL)
     Q_PROPERTY(int touchDoubleTapDistance READ touchDoubleTapDistance STORED false CONSTANT FINAL)
     Q_PROPERTY(Qt::Appearance appearance READ appearance NOTIFY appearanceChanged FINAL)
+    Q_PROPERTY(Qt::ColorScheme colorScheme READ colorScheme NOTIFY colorSchemeChanged FINAL)
 
 public:
     void setMouseDoubleClickInterval(int mouseDoubleClickInterval);
@@ -94,6 +95,7 @@ public:
     void setMouseQuickSelectionThreshold(int threshold);
     int mouseQuickSelectionThreshold() const;
     Qt::Appearance appearance() const;
+    Qt::ColorScheme colorScheme() const;
 
 Q_SIGNALS:
     void cursorFlashTimeChanged(int cursorFlashTime);
@@ -108,6 +110,7 @@ Q_SIGNALS:
     void wheelScrollLinesChanged(int scrollLines);
     void mouseQuickSelectionThresholdChanged(int threshold);
     void appearanceChanged(Qt::Appearance appearance);
+    void colorSchemeChanged(Qt::ColorScheme colorScheme);
 
 private:
     friend class QGuiApplication;