Added AudioButton.

mrv2/lib/mrvWidgets/mrvAudioButton.cpp

@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// mrv2
+// Copyright Contributors to the mrv2 Project. All rights reserved.
+
+
+#include <FL/Fl_Menu_Button.H>
+
+#include "mrvCore/mrvI8N.h"
+
+#include "mrvWidgets/mrvAudioButton.h"
+
+#include "mrvFl/mrvCallbacks.h"
+
+#include "mrvApp/mrvApp.h"
+
+namespace mrv
+{
+
+    static void change_audio_track_cb(Fl_Menu_Button* o, void* d)
+    {
+        auto audioButton = static_cast<AudioButton*>(d);
+        int idx = o->value();
+
+        audioButton->current_track(idx);
+
+        clone_and_replace_cb(o, d);
+    }
+
+    AudioButton::AudioButton(int X, int Y, int W, int H, const char* l) :
+        Fl_Button(X, Y, W, H, l)
+    {
+    }
+
+    int AudioButton::current_track() const
+    {
+        return currentTrack;
+    }
+
+    void AudioButton::current_track(int idx)
+    {
+        currentTrack = idx;
+    }
+
+    int AudioButton::handle(int e)
+    {
+        switch (e)
+        {
+        case FL_PUSH:
+            if (Fl::event_button3() && audioTracks.size() > 1)
+            {
+                Fl_Menu_Button menu(0, 0, 0, 0);
+                menu.type(Fl_Menu_Button::POPUP3);
+                menu.clear();
+
+                for (const auto& track : audioTracks)
+                {
+                    menu.add(
+                        track.c_str(), 0, (Fl_Callback*)change_audio_track_cb,
+                        this);
+                }
+                menu.menu_end();
+
+                menu.popup();
+                return 1;
+            }
+            break;
+        }
+        return Fl_Button::handle(e);
+    }
+
+    void AudioButton::clear_tracks()
+    {
+        currentTrack = -1;
+        audioTracks.clear();
+    }
+
+    void AudioButton::add_track(const std::string& name)
+    {
+        audioTracks.push_back(name);
+    }
+
+    void AudioButton::add_track()
+    {
+        char buf[256];
+        unsigned idx = audioTracks.size() + 1;
+        snprintf(buf, 256, _("Track #%d"), idx);
+        add_track(buf);
+    }
+
+} // namespace mrv

mrv2/lib/mrvWidgets/mrvAudioButton.h

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// mrv2
+// Copyright Contributors to the mrv2 Project. All rights reserved.
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include <FL/Fl_Button.H>
+
+namespace mrv
+{
+
+    class AudioButton : public Fl_Button
+    {
+    public:
+        AudioButton(int, int, int, int, const char* = 0);
+        virtual ~AudioButton(){};
+        virtual int handle(int e) override;
+
+        int current_track() const;
+        void current_track(int idx);
+
+        void clear_tracks();
+        void add_track(const std::string& name);
+        void add_track();
+
+    protected:
+        int currentTrack = -1;
+        std::vector<std::string> audioTracks;
+    };
+
+} // namespace mrv