qmediaplayer: added command-line switch for initial volume

Initial volume can be set using the following switch:
    -volume <level>
where 0.0 <= level <= 1.0

3 files changed, 46 insertions, 35 deletions

diff --git a/demos/qmediaplayer/main.cpp b/demos/qmediaplayer/main.cpp
index 02c579b..9f15e43 100644
--- a/demos/qmediaplayer/main.cpp
+++ b/demos/qmediaplayer/main.cpp
@@ -42,6 +42,8 @@
 #include <QtGui>
 #include "mediaplayer.h"
 
+const qreal DefaultVolume = -1.0;
+
 int main (int argc, char *argv[])
 {
     Q_INIT_RESOURCE(mediaplayer);
@@ -50,36 +52,38 @@ int main (int argc, char *argv[])
     app.setOrganizationName("Qt");
     app.setQuitOnLastWindowClosed(true);
 
-    bool hasSmallScreen =
+    QString fileName;
+    qreal volume = DefaultVolume;
+    bool smallScreen = false;
 #ifdef Q_OS_SYMBIAN
-        /* On Symbian, we always want fullscreen. One reason is that it's not
-         * possible to launch any demos from the fluidlauncher due to a
-         * limitation in the emulator. */
-        true
-#else
-        false
+    smallScreen = true;
 #endif
-    ;
-
-    QString fileString;
-    const QStringList args(app.arguments());
-    /* We have a minor problem here, we accept two arguments, both are
-     * optional:
-     * - A file name
-     * - the option "-small-screen", so let's try to cope with that.
-     */
-    for (int i = 0; i < args.count(); ++i) {
-        const QString &at = args.at(i);
 
-        if (at == QLatin1String("-small-screen"))
-            hasSmallScreen = true;
-        else if (i > 0) // We don't want the app name.
-            fileString = at;
+    QStringList args(app.arguments());
+    args.removeFirst(); // remove name of executable
+    while (!args.empty()) {
+        const QString &arg = args.first();
+        if (QLatin1String("-small-screen") == arg || QLatin1String("--small-screen") == arg) {
+            smallScreen = true;
+        } else if (QLatin1String("-volume") == arg || QLatin1String("--volume") == arg) {
+            if (!args.empty()) {
+                args.removeFirst();
+                volume = qMax(qMin(args.first().toFloat(), float(1.0)), float(0.0));
+            }
+        } else if (fileName.isNull()) {
+            fileName = arg;
+        }
+        args.removeFirst();
     }
 
-    MediaPlayer player(fileString, hasSmallScreen);
+    MediaPlayer player;
+    player.setSmallScreen(smallScreen);
+    if (DefaultVolume != volume)
+        player.setVolume(volume);
+    if (!fileName.isNull())
+        player.setFile(fileName);
 
-    if (hasSmallScreen)
+    if (smallScreen)
         player.showMaximized();
     else
         player.show();
diff --git a/demos/qmediaplayer/mediaplayer.cpp b/demos/qmediaplayer/mediaplayer.cpp
index 97a8e35..76beb0c 100644
--- a/demos/qmediaplayer/mediaplayer.cpp
+++ b/demos/qmediaplayer/mediaplayer.cpp
@@ -152,12 +152,10 @@ void MediaVideoWidget::dragEnterEvent(QDragEnterEvent *e) {
 }
 
 
-MediaPlayer::MediaPlayer(const QString &filePath,
-                         const bool hasSmallScreen) :
+MediaPlayer::MediaPlayer() :
         playButton(0), nextEffect(0), settingsDialog(0), ui(0),
             m_AudioOutput(Phonon::VideoCategory),
-            m_videoWidget(new MediaVideoWidget(this)),
-            m_hasSmallScreen(hasSmallScreen)
+            m_videoWidget(new MediaVideoWidget(this))
 {
     setWindowTitle(tr("Media Player"));
     setContextMenuPolicy(Qt::CustomContextMenu);
@@ -346,8 +344,6 @@ MediaPlayer::MediaPlayer(const QString &filePath,
     m_audioOutputPath = Phonon::createPath(&m_MediaObject, &m_AudioOutput);
     Phonon::createPath(&m_MediaObject, m_videoWidget);
 
-    if (!filePath.isEmpty())
-        setFile(filePath);
     resize(minimumSizeHint());
 }
 
@@ -358,7 +354,7 @@ void MediaPlayer::stateChanged(Phonon::State newstate, Phonon::State oldstate)
     if (oldstate == Phonon::LoadingState) {
         QRect videoHintRect = QRect(QPoint(0, 0), m_videoWindow.sizeHint());
         QRect newVideoRect = QApplication::desktop()->screenGeometry().intersected(videoHintRect);
-        if (!m_hasSmallScreen) {
+        if (!m_smallScreen) {
             if (m_MediaObject.hasVideo()) {
                 // Flush event que so that sizeHint takes the
                 // recently shown/hidden m_videoWindow into account:
@@ -466,6 +462,16 @@ void MediaPlayer::initSettingsDialog()
 
 }
 
+void MediaPlayer::setVolume(qreal volume)
+{
+    m_AudioOutput.setVolume(volume);
+}
+
+void MediaPlayer::setSmallScreen(bool smallScreen)
+{
+    m_smallScreen = smallScreen;
+}
+
 void MediaPlayer::effectChanged()
 {
     int currentIndex = ui->audioEffectsCombo->currentIndex();
@@ -685,7 +691,7 @@ bool MediaPlayer::playPauseForDialog()
     // If we're running on a small screen, we want to pause the video when
     // popping up dialogs. We neither want to tamper with the state if the
     // user has paused.
-    if (m_hasSmallScreen && m_MediaObject.hasVideo()) {
+    if (m_smallScreen && m_MediaObject.hasVideo()) {
         if (Phonon::PlayingState == m_MediaObject.state()) {
             m_MediaObject.pause();
             return true;
diff --git a/demos/qmediaplayer/mediaplayer.h b/demos/qmediaplayer/mediaplayer.h
index d6ae58b..73450fe 100644
--- a/demos/qmediaplayer/mediaplayer.h
+++ b/demos/qmediaplayer/mediaplayer.h
@@ -104,8 +104,7 @@ class MediaPlayer :
 {
     Q_OBJECT
 public:
-    MediaPlayer(const QString &,
-                const bool hasSmallScreen);
+    MediaPlayer();
 
     void dragEnterEvent(QDragEnterEvent *e);
     void dragMoveEvent(QDragMoveEvent *e);
@@ -115,6 +114,8 @@ public:
     void setLocation(const QString &location);
     void initVideoWindow();
     void initSettingsDialog();
+    void setVolume(qreal volume);
+    void setSmallScreen(bool smallScreen);
 
 public slots:
     void openFile();
@@ -171,7 +172,7 @@ private:
     Phonon::AudioOutput m_AudioOutput;
     MediaVideoWidget *m_videoWidget;
     Phonon::Path m_audioOutputPath;
-    const bool m_hasSmallScreen;
+    bool m_smallScreen;
 };
 
 #endif //MEDIAPLAYER_H