Long live Qt 4.5!

1 files changed, 115 insertions, 0 deletions

diff --git a/doc/src/snippets/phonon/samplebackend/main.cpp b/doc/src/snippets/phonon/samplebackend/main.cpp
new file mode 100644
index 0000000..724ef5c
--- /dev/null
+++ b/doc/src/snippets/phonon/samplebackend/main.cpp
@@ -0,0 +1,115 @@
+//! [snippet]
+QObject *Backend::createObject(BackendInterface::Class c, QObject *parent, const QList<QVariant> &args)
+{
+    switch (c) {
+    case MediaObjectClass:
+        return new MediaObject(parent);
+    case VolumeFaderEffectClass:
+        return new VolumeFaderEffect(parent);
+    case AudioOutputClass:
+        return new AudioOutput(parent);
+    case AudioDataOutputClass:
+        return new AudioDataOutput(parent);
+    case VisualizationClass:
+        return new Visualization(parent);
+    case VideoDataOutputClass:
+        return new VideoDataOutput(parent);
+    case EffectClass:
+        return new Effect(args[0].toInt(), parent);
+    case VideoWidgetClass:
+        return new VideoWidget(qobject_cast<QWidget *>(parent));
+    }
+    return 0;
+}
+
+QSet<int> Backend::objectDescriptionIndexes(ObjectDescriptionType type) const
+{
+    QSet<int> set;
+    switch(type)
+    {
+    case Phonon::AudioOutputDeviceType:
+        // use AudioDeviceEnumerator to list ALSA and OSS devices
+        set << 10000 << 10001;
+        break;
+    case Phonon::AudioCaptureDeviceType:
+        set << 20000 << 20001;
+        break;
+    case Phonon::VideoOutputDeviceType:
+        break;
+    case Phonon::VideoCaptureDeviceType:
+        set << 30000 << 30001;
+        break;
+    case Phonon::VisualizationType:
+    case Phonon::AudioCodecType:
+    case Phonon::VideoCodecType:
+    case Phonon::ContainerFormatType:
+        break;
+    case Phonon::EffectType:
+        set << 0x7F000001;
+        break;
+    }
+    return set;
+}
+
+QHash<QByteArray, QVariant> Backend::objectDescriptionProperties(ObjectDescriptionType type, int index) const
+{
+    QHash<QByteArray, QVariant> ret;
+    switch (type) {
+    case Phonon::AudioOutputDeviceType:
+        switch (index) {
+        case 10000:
+            ret.insert("name", QLatin1String("internal Soundcard"));
+            break;
+        case 10001:
+            ret.insert("name", QLatin1String("USB Headset"));
+            ret.insert("icon", KIcon("usb-headset"));
+            ret.insert("available", false);
+            break;
+        }
+        break;
+    case Phonon::AudioCaptureDeviceType:
+        switch (index) {
+        case 20000:
+            ret.insert("name", QLatin1String("Soundcard"));
+            ret.insert("description", QLatin1String("first description"));
+            break;
+        case 20001:
+            ret.insert("name", QLatin1String("DV"));
+            ret.insert("description", QLatin1String("second description"));
+            break;
+        }
+        break;
+    case Phonon::VideoOutputDeviceType:
+        break;
+    case Phonon::VideoCaptureDeviceType:
+        switch (index) {
+        case 30000:
+            ret.insert("name", QLatin1String("USB Webcam"));
+            ret.insert("description", QLatin1String("first description"));
+            break;
+        case 30001:
+            ret.insert("name", QLatin1String("DV"));
+            ret.insert("description", QLatin1String("second description"));
+            break;
+        }
+        break;
+    case Phonon::VisualizationType:
+        break;
+    case Phonon::AudioCodecType:
+        break;
+    case Phonon::VideoCodecType:
+        break;
+    case Phonon::ContainerFormatType:
+        break;
+    case Phonon::EffectType:
+        switch (index) {
+        case 0x7F000001:
+            ret.insert("name", QLatin1String("Delay"));
+            ret.insert("description", QLatin1String("Simple delay effect with time, feedback and level controls."));
+            break;
+        }
+        break;
+    }
+    return ret;
+}
+//! [snippet]