Recording popup, level meters, UX polish

- Recording tray icon opens popup (mics + active recording streams)
- Recording stream level meters forward from parent source signal
- RecordingTray subclass for single-click (no double-click needed)
- Context menu Set Default Output/Input shows checkmark when active
- Last DeviceWidget in each row hides its right separator
- Popup horizontal layout, configurable content (output/mic/apps)
- Single-click tray, right-click menu for Open Mixer
- Desktop file, icon, CMake install rules
- Window bring-to-front across workspaces (KWin::forceActiveWindow)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 16 insertions, 2 deletions

diff --git a/src/ui/devicewidget.cpp b/src/ui/devicewidget.cpp
index e6401d2..22e2995 100644
--- a/src/ui/devicewidget.cpp
+++ b/src/ui/devicewidget.cpp
@@ -17,6 +17,7 @@
 #include <kled.h>
 #include <kiconloader.h>
 #include <tdeglobal.h>
+#include <tdeconfig.h>
 #include <kstandarddirs.h>
 #include <tdepopupmenu.h>
 #include <tdelocale.h>
@@ -287,6 +288,17 @@ void DeviceWidget::onDeviceName( const TQString &name )
     static_cast<VerticalLabel*>(m_label)->setText( name );
 }
 
+void DeviceWidget::wheelEvent( TQWheelEvent *e )
+{
+    TDEConfig *cfg = TDEGlobal::config();
+    cfg->setGroup("General");
+    int step  = cfg->readNumEntry("ScrollStep", 5);
+    int delta = e->delta() > 0 ? step : -step;
+    int vol   = TQMAX( 0, TQMIN( 100, m_device->volume() + delta ) );
+    m_device->setVolume( vol );
+    e->accept();
+}
+
 void DeviceWidget::contextMenuEvent( TQContextMenuEvent *e )
 {
     TDEPopupMenu menu( this );
@@ -300,11 +312,13 @@ void DeviceWidget::contextMenuEvent( TQContextMenuEvent *e )
 
         if ( cat == AudioDevice::Output ) {
             menu.insertSeparator();
-            menu.insertItem( i18n("Set as Default Output"), this, TQ_SLOT(onSetDefault()) );
+            int id = menu.insertItem( i18n("Set as Default Output"), this, TQ_SLOT(onSetDefault()) );
+            menu.setItemChecked( id, m_model->defaultOutput() == m_device );
 
         } else if ( cat == AudioDevice::Input ) {
             menu.insertSeparator();
-            menu.insertItem( i18n("Set as Default Input"), this, TQ_SLOT(onSetDefault()) );
+            int id = menu.insertItem( i18n("Set as Default Input"), this, TQ_SLOT(onSetDefault()) );
+            menu.setItemChecked( id, m_model->defaultInput() == m_device );
 
         } else if ( cat == AudioDevice::Playback ) {
             TQPtrList<AudioDevice> sinks = m_model->devices( AudioDevice::Output );