Various fixes and clean-ups for media items:

- Hovering over the video now makes the seek bar visible
- The size of the video item is no longer changed when the video
finishes playing
- Media errors are now handled by the mediaItem and displayed for the
user

- Code clean-up

src/domain/UBGraphicsItemDelegate.h

@@ -296,6 +296,8 @@ class UBGraphicsItemDelegate : public QObject
         void setUBFlags(UBGraphicsFlags pf);
         void setUBFlag(UBGraphicsFlags pf, bool set = true);
 
+        virtual void showToolBar() {}
+
     signals:
         void showOnDisplayChanged(bool shown);
         void lockChanged(bool locked);

src/domain/UBGraphicsMediaItem.cpp

@@ -80,19 +80,12 @@ UBGraphicsMediaItem::UBGraphicsMediaItem(const QUrl& pMediaFileUrl, QGraphicsIte
     setFlag(ItemIsMovable, true);
     setFlag(ItemSendsGeometryChanges, true);
 
-    setAcceptHoverEvents(true);
-
     connect(mMediaObject, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)),
             Delegate(), SLOT(mediaStatusChanged(QMediaPlayer::MediaStatus)));
 
     connect(mMediaObject, SIGNAL(stateChanged(QMediaPlayer::State)),
             Delegate(), SLOT(mediaStateChanged(QMediaPlayer::State)));
 
-    /*
-    connect(mMediaObject, static_cast<void(QMediaPlayer::*)(QMediaPlayer::Error)>(&QMediaPlayer::error),
-            Delegate(), &UBGraphicsMediaItemDelegate::mediaError);
-            */
-
     connect(mMediaObject, SIGNAL(positionChanged(qint64)),
             Delegate(), SLOT(updateTicker(qint64)));
 
@@ -104,6 +97,9 @@ UBGraphicsMediaItem::UBGraphicsMediaItem(const QUrl& pMediaFileUrl, QGraphicsIte
 
     connect(mMediaObject, SIGNAL(videoAvailableChanged(bool)),
             this, SLOT(hasMediaChanged(bool)));
+
+    connect(mMediaObject, static_cast<void(QMediaPlayer::*)(QMediaPlayer::Error)>(&QMediaPlayer::error),
+            this, &UBGraphicsMediaItem::mediaError);
 }
 
 UBGraphicsAudioItem::UBGraphicsAudioItem(const QUrl &pMediaFileUrl, QGraphicsItem *parent)
@@ -133,11 +129,13 @@ UBGraphicsVideoItem::UBGraphicsVideoItem(const QUrl &pMediaFileUrl, QGraphicsIte
     setMinimumSize(QSize(320, 240));
     setSize(320, 240);
 
-
     connect(mVideoItem, SIGNAL(nativeSizeChanged(QSizeF)),
             this, SLOT(videoSizeChanged(QSizeF)));
 
     haveLinkedImage = true;
+
+    setAcceptHoverEvents(true);
+
     update();
 }
 
@@ -179,8 +177,7 @@ QVariant UBGraphicsMediaItem::itemChange(GraphicsItemChange change, const QVaria
         return QGraphicsRectItem::itemChange(change, newValue);
     }
 
-    else
-        return QGraphicsRectItem::itemChange(change, value);
+    return QGraphicsRectItem::itemChange(change, value);
 }
 
 void UBGraphicsMediaItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
@@ -293,8 +290,7 @@ void UBGraphicsMediaItem::setMute(bool bMute)
 
 void UBGraphicsMediaItem::hasMediaChanged(bool hasMedia)
 {
-    if(hasMedia && mMediaObject->isSeekable())
-    {
+    if(hasMedia && mMediaObject->isSeekable()) {
         mMediaObject->setPosition(mInitialPos);
 
         UBGraphicsMediaItemDelegate *med = dynamic_cast<UBGraphicsMediaItemDelegate *>(Delegate());
@@ -345,7 +341,6 @@ void UBGraphicsMediaItem::stop()
 
 void UBGraphicsMediaItem::togglePlayPause()
 {
-
     if (mMediaObject->state() == QMediaPlayer::StoppedState)
         mMediaObject->play();
 
@@ -374,10 +369,12 @@ void UBGraphicsMediaItem::togglePlayPause()
         mMediaObject->setMedia(mediaFileUrl());
         mMediaObject->play();
     }
+}
 
-    if (mMediaObject->error())
-        qDebug() << "Error appeared." << mMediaObject->errorString();
-
+void UBGraphicsMediaItem::mediaError(QMediaPlayer::Error errorCode)
+{
+    if (errorCode != QMediaPlayer::NoError)
+        UBApplication::showMessage(mMediaObject->errorString());
 }
 
 void UBGraphicsMediaItem::copyItemParameters(UBItem *copy) const
@@ -403,14 +400,11 @@ void UBGraphicsMediaItem::copyItemParameters(UBItem *copy) const
 
 void UBGraphicsMediaItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
 {
-    if (Delegate())
-    {
+    if (Delegate()) {
         Delegate()->mousePressEvent(event);
-        if (parentItem() && UBGraphicsGroupContainerItem::Type == parentItem()->type())
-        {
+        if (parentItem() && UBGraphicsGroupContainerItem::Type == parentItem()->type()) {
             UBGraphicsGroupContainerItem *group = qgraphicsitem_cast<UBGraphicsGroupContainerItem*>(parentItem());
-            if (group)
-            {
+            if (group) {
                 QGraphicsItem *curItem = group->getCurrentItem();
                 if (curItem && this != curItem)
                     group->deselectCurrentItem();
@@ -418,7 +412,6 @@ void UBGraphicsMediaItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
                 this->setSelected(true);
                 Delegate()->positionHandles();
             }
-
         }
     }
 
@@ -504,7 +497,34 @@ void UBGraphicsVideoItem::setSize(int width, int height)
 
 void UBGraphicsVideoItem::videoSizeChanged(QSizeF newSize)
 {
-    this->setSize(newSize.width(), newSize.height());
+    /* Depending on the platform, video size information becomes available
+     * at different times (either when the file is loaded, or when playback
+     * begins), so this slot is needed to resize the video item as soon as
+     * the information is available.
+     */
+
+
+    // Don't resize the video item when playback has finished
+    if (mMediaObject->mediaStatus() != QMediaPlayer::EndOfMedia)
+        this->setSize(newSize.width(), newSize.height());
 }
 
 
+
+void UBGraphicsVideoItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+    // Display the seek bar
+    Delegate()->showToolBar();
+    QGraphicsRectItem::hoverEnterEvent(event);
+}
+
+void UBGraphicsVideoItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
+{
+    Delegate()->showToolBar();
+    QGraphicsRectItem::hoverMoveEvent(event);
+}
+
+void UBGraphicsVideoItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+    QGraphicsRectItem::hoverLeaveEvent(event);
+}

src/domain/UBGraphicsMediaItem.h

@@ -117,6 +117,9 @@ public slots:
     virtual void stop();
     virtual void togglePlayPause();
 
+protected slots:
+    void mediaError(QMediaPlayer::Error errorCode);
+
 protected:
 
     virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
@@ -177,6 +180,10 @@ public slots:
 protected:
 
     QGraphicsVideoItem *mVideoItem;
+
+    virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+    virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
+    virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
 };
 
 

src/domain/UBGraphicsMediaItemDelegate.cpp

@@ -71,6 +71,18 @@ bool UBGraphicsMediaItemDelegate::mousePressEvent(QGraphicsSceneMouseEvent *even
     return UBGraphicsItemDelegate::mousePressEvent(event);
 }
 
+/**
+ * @brief Show the toolbar (play/pause, seek, mute).
+ *
+ * The toolbar then auto-hides after a set amount of time.
+ */
+void UBGraphicsMediaItemDelegate::showToolBar()
+{
+    mToolBarItem->show();
+    if (mToolBarShowTimer)
+        mToolBarShowTimer->start();
+}
+
 void UBGraphicsMediaItemDelegate::hideToolBar()
 {
     mToolBarItem->hide();
@@ -108,11 +120,10 @@ void UBGraphicsMediaItemDelegate::buildButtons()
         mToolBarItem->setShifting(false);
 
         if (!mToolBarShowTimer) {
-
             if (delegated()->hasLinkedImage()) {
                 mToolBarShowTimer = new QTimer();
-                connect(mToolBarShowTimer, SIGNAL(timeout()), this, SLOT(hideToolBar()));
                 mToolBarShowTimer->setInterval(m_iToolBarShowingInterval);
+                connect(mToolBarShowTimer, SIGNAL(timeout()), this, SLOT(hideToolBar()));
             }
         }
 
@@ -181,13 +192,6 @@ void UBGraphicsMediaItemDelegate::remove(bool canUndo)
     if (delegated())
         delegated()->stop();
 
-    /*
-    if (delegated()->videoItem()) {
-        UBGraphicsScene* scene = dynamic_cast<UBGraphicsScene*>(mDelegated->scene());
-        scene->removeItem(delegated()->videoItem());
-    }
-    */
-
     UBGraphicsItemDelegate::remove(canUndo);
 }
 
@@ -232,15 +236,6 @@ void UBGraphicsMediaItemDelegate::mediaStateChanged(QMediaPlayer::State state)
     updatePlayPauseState();
 }
 
-void UBGraphicsMediaItemDelegate::mediaError(QMediaPlayer::Error error)
-{
-    // Possible errors are NoError, ResourceError, FormatError, NetworkError, AccessDeniedError,
-    // ServiceMissingError
-    Q_UNUSED(error);
-
-    qDebug() << "Error appeared.";// << mMedia->errorString();
-}
-
 
 void UBGraphicsMediaItemDelegate::updatePlayPauseState()
 {
@@ -253,9 +248,6 @@ void UBGraphicsMediaItemDelegate::updatePlayPauseState()
 
 void UBGraphicsMediaItemDelegate::updateTicker(qint64 time)
 {
-    // TODO: duration() getter for UBGMediaItem
-    // make sure that all delegate()->mediaObject() calls are removed. 'tis dirty.
-
     mMediaControl->totalTimeChanged(delegated()->mediaDuration());
     mMediaControl->updateTicker(time);
 }
@@ -270,7 +262,6 @@ void UBGraphicsMediaItemDelegate::showHide(bool show)
 {
     QVariant showFlag = QVariant(show ? UBItemLayerType::Object : UBItemLayerType::Control);
     showHideRecurs(showFlag, mDelegated);
-    // TODO: call showHideRecurs on the videoItem too (from UBGMI?)
     mDelegated->update();
 
     emit showOnDisplayChanged(show);

src/domain/UBGraphicsMediaItemDelegate.h

@@ -50,6 +50,8 @@ class UBGraphicsMediaItemDelegate :  public UBGraphicsItemDelegate
 
         bool mousePressEvent(QGraphicsSceneMouseEvent* event);
 
+        void showToolBar();
+
     public slots:
 
         void toggleMute();
@@ -58,7 +60,6 @@ class UBGraphicsMediaItemDelegate :  public UBGraphicsItemDelegate
 
         void mediaStatusChanged(QMediaPlayer::MediaStatus status);
         void mediaStateChanged(QMediaPlayer::State state);
-        void mediaError(QMediaPlayer::Error error);
 
     protected slots: