[vlc-commits] [Git][videolan/vlc][master] qt: use wheel accumulator to handle interface scaling on ctrl+wheel

[Steve Lhomme (@robUx4)]

Steve Lhomme pushed to branch master at VideoLAN / VLC


Commits:
520201ef by Pierre Lamot at 2025-11-14T11:17:19+00:00
qt: use wheel accumulator to handle interface scaling on ctrl+wheel

This avoids scaling changes being spammed with when using touchpad

- - - - -


2 changed files:

- modules/gui/qt/maininterface/interface_window_handler.cpp
- modules/gui/qt/maininterface/interface_window_handler.hpp


Changes:

=====================================
modules/gui/qt/maininterface/interface_window_handler.cpp
=====================================
@@ -161,6 +161,14 @@ InterfaceWindowHandler::InterfaceWindowHandler(qt_intf_t *_p_intf, MainCtx* main
             w->alert(0);
     });
 
+    connect(
+        &m_wheelAccumulator, &WheelToVLCConverter::wheelUpDown,
+        this, [this] (int steps, Qt::KeyboardModifiers modifiers) {
+            if (modifiers != Qt::ControlModifier)
+                return;
+            emit incrementIntfUserScaleFactor(steps > 0);
+    });
+
     m_window->installEventFilter(this);
 }
 
@@ -267,7 +275,7 @@ bool InterfaceWindowHandler::eventFilter(QObject*, QEvent* event)
         QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
         if (wheelEvent->modifiers() == Qt::ControlModifier)
         {
-            emit incrementIntfUserScaleFactor(wheelEvent->angleDelta().y() > 0);
+            m_wheelAccumulator.wheelEvent(wheelEvent);
             wheelEvent->accept();
             return true;
         }


=====================================
modules/gui/qt/maininterface/interface_window_handler.hpp
=====================================
@@ -23,6 +23,7 @@
 #include <QObject>
 #include <QWindow>
 #include <QPointer>
+#include "util/vlchotkeyconverter.hpp"
 
 class MainCtx;
 class InterfaceWindowHandler : public QObject
@@ -86,6 +87,8 @@ protected:
 
     QRect m_interfaceGeometry;
 
+    WheelToVLCConverter m_wheelAccumulator;
+
     static const Qt::Key kc[10]; /* easter eggs */
     int i_kc_offset = 0;
 };



View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/520201efb9b7ad88c197969b8e2b7ded117a5d02

-- 
View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/520201efb9b7ad88c197969b8e2b7ded117a5d02
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