Create a devicewidget based on streamwidget.

This will become the base for Output and Input device tabs (as the streamwidget will have a different UI)

src/devicewidget.cc

@@ -0,0 +1,96 @@
+/***
+  This file is part of pavucontrol.
+
+  Copyright 2006-2008 Lennart Poettering
+  Copyright 2009 Colin Guthrie
+
+  pavucontrol is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 2 of the License, or
+  (at your option) any later version.
+
+  pavucontrol is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with pavucontrol. If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "devicewidget.h"
+
+/*** DeviceWidget ***/
+DeviceWidget::DeviceWidget(BaseObjectType* cobject, const Glib::RefPtr<Gnome::Glade::Xml>& x) :
+    MinimalStreamWidget(cobject, x)  {
+
+    x->get_widget("lockToggleButton", lockToggleButton);
+    x->get_widget("muteToggleButton", muteToggleButton);
+
+    muteToggleButton->signal_clicked().connect(sigc::mem_fun(*this, &DeviceWidget::onMuteToggleButton));
+
+    for (unsigned i = 0; i < PA_CHANNELS_MAX; i++)
+        channelWidgets[i] = NULL;
+}
+
+void DeviceWidget::setChannelMap(const pa_channel_map &m, bool can_decibel) {
+    channelMap = m;
+
+    for (int i = 0; i < m.channels; i++) {
+        ChannelWidget *cw = channelWidgets[i] = ChannelWidget::create();
+        cw->beepDevice = beepDevice;
+        cw->channel = i;
+        cw->can_decibel = can_decibel;
+        cw->streamWidget = this;
+        char text[64];
+        snprintf(text, sizeof(text), "<b>%s</b>", pa_channel_position_to_pretty_string(m.map[i]));
+        cw->channelLabel->set_markup(text);
+        channelsVBox->pack_start(*cw, false, false, 0);
+    }
+
+    lockToggleButton->set_sensitive(m.channels > 1);
+}
+
+void DeviceWidget::setVolume(const pa_cvolume &v, bool force) {
+    g_assert(v.channels == channelMap.channels);
+
+    volume = v;
+
+    if (timeoutConnection.empty() || force) { /* do not update the volume when a volume change is still in flux */
+        for (int i = 0; i < volume.channels; i++)
+            channelWidgets[i]->setVolume(volume.values[i]);
+    }
+}
+
+void DeviceWidget::updateChannelVolume(int channel, pa_volume_t v) {
+    pa_cvolume n;
+    g_assert(channel < volume.channels);
+
+    n = volume;
+    if (lockToggleButton->get_active()) {
+        for (int i = 0; i < n.channels; i++)
+            n.values[i] = v;
+    } else
+        n.values[channel] = v;
+
+    setVolume(n, true);
+
+    if (timeoutConnection.empty())
+        timeoutConnection = Glib::signal_timeout().connect(sigc::mem_fun(*this, &DeviceWidget::timeoutEvent), 100);
+}
+
+void DeviceWidget::onMuteToggleButton() {
+
+    lockToggleButton->set_sensitive(!muteToggleButton->get_active());
+
+    for (int i = 0; i < channelMap.channels; i++)
+        channelWidgets[i]->set_sensitive(!muteToggleButton->get_active());
+}
+
+bool DeviceWidget::timeoutEvent() {
+    executeVolumeUpdate();
+    return false;
+}
+
+void DeviceWidget::executeVolumeUpdate() {
+}

src/devicewidget.h

@@ -0,0 +1,54 @@
+/***
+  This file is part of pavucontrol.
+
+  Copyright 2006-2008 Lennart Poettering
+  Copyright 2009 Colin Guthrie
+
+  pavucontrol is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 2 of the License, or
+  (at your option) any later version.
+
+  pavucontrol is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with pavucontrol. If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifndef devicewidget_h
+#define devicewidget_h
+
+#include "pavucontrol.h"
+
+#include "minimalstreamwidget.h"
+
+class ChannelWidget;
+
+class DeviceWidget : public MinimalStreamWidget {
+public:
+    DeviceWidget(BaseObjectType* cobject, const Glib::RefPtr<Gnome::Glade::Xml>& x);
+
+    void setChannelMap(const pa_channel_map &m, bool can_decibel);
+    void setVolume(const pa_cvolume &volume, bool force = false);
+    virtual void updateChannelVolume(int channel, pa_volume_t v);
+
+    Gtk::ToggleButton *lockToggleButton, *muteToggleButton;
+
+    pa_channel_map channelMap;
+    pa_cvolume volume;
+
+    ChannelWidget *channelWidgets[PA_CHANNELS_MAX];
+
+    virtual void onMuteToggleButton();
+
+    sigc::connection timeoutConnection;
+
+    bool timeoutEvent();
+
+    virtual void executeVolumeUpdate();
+};
+
+#endif