Initial tmix skeleton — model layer + basic UI

PulseModel: stable PulseDevice objects keyed by PA index, updated
in-place via postEvent reconciliation. No bulk rebuilds. Three signals:
deviceAdded, deviceRemoved (device changed handled per-device via
volumeChanged/muteChanged/nameChanged).

MixerWindow: four-tab layout (Output/Input/Playback/Recording), adds
and removes individual DeviceWidgets in response to model signals.

Builds and links cleanly against TQt3/TDE + libpulse.

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

1 files changed, 40 insertions, 0 deletions

diff --git a/src/model/pulsedevice.h b/src/model/pulsedevice.h
new file mode 100644
index 0000000..fbdf985
--- /dev/null
+++ b/src/model/pulsedevice.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#include <pulse/pulseaudio.h>
+#include "audiodevice.h"
+
+class PulseDevice : public AudioDevice
+{
+    TQ_OBJECT
+
+public:
+    PulseDevice( AudioDevice::Category cat, uint32_t paIndex, TQObject *parent = 0 );
+    ~PulseDevice() {}
+
+    TQString     name()     const { return m_name; }
+    Category    category() const { return m_category; }
+    int         volume()   const { return m_volume; }
+    bool        muted()    const { return m_muted; }
+    uint32_t    paIndex()  const { return m_paIndex; }
+
+    void setVolume( int v );
+    void setMuted( bool m );
+
+    // Called by PulseModel when PA reports an update — updates in place and emits signals.
+    void update( const TQString &name, int volume, bool muted );
+
+    TQWidget *createWidget( TQWidget *parent );
+
+    // PA context needed to write volume back — set once by PulseModel after construction.
+    void setPAContext( pa_context *ctx, pa_threaded_mainloop *mainloop );
+
+private:
+    AudioDevice::Category  m_category;
+    uint32_t               m_paIndex;
+    TQString                m_name;
+    int                    m_volume;   // 0-100
+    bool                   m_muted;
+
+    pa_context            *m_context;
+    pa_threaded_mainloop  *m_mainloop;
+};