Implemented the drag and drop from the teacherbar to the board

src/board/UBBoardView.cpp

@@ -47,6 +47,7 @@
 #include "document/UBDocumentProxy.h"
 
 #include "customWidgets/UBDraggableLabel.h"
+#include "customWidgets/UBDraggableMedia.h"
 
 #include "core/memcheck.h"
 
@@ -727,7 +728,7 @@ void
 UBBoardView::dropEvent (QDropEvent *event)
 {
     qDebug() << event->source();
-    if(!event->source() || dynamic_cast<UBThumbnailWidget *>(event->source()) || dynamic_cast<QWebView*>(event->source()) || dynamic_cast<UBDraggableMediaPlayer *>(event->source()) || dynamic_cast<UBDraggableLabel *>(event->source()))
+    if(!event->source() || dynamic_cast<UBThumbnailWidget *>(event->source()) || dynamic_cast<QWebView*>(event->source()) || dynamic_cast<UBDraggableMediaPlayer *>(event->source()) || dynamic_cast<UBDraggableLabel *>(event->source()) || dynamic_cast<UBDraggableMedia *>(event->source()))
     {
         mController->processMimeData (event->mimeData (), mapToScene (event->pos ()));
         event->acceptProposedAction ();

src/customWidgets/UBDraggableMedia.cpp

@@ -0,0 +1,42 @@
+#include <QApplication>
+#include <QUrl>
+
+#include "UBDraggableMedia.h"
+
+UBDraggableMedia::UBDraggableMedia(eMediaType type, QWidget *parent, const char *name):UBMediaWidget(type, parent, name)
+{
+
+}
+
+UBDraggableMedia::~UBDraggableMedia()
+{
+
+}
+
+void UBDraggableMedia::mousePressEvent(QMouseEvent* ev)
+{
+    if(Qt::LeftButton == ev->button()){
+        mDragStartPos = ev->pos();
+    }
+}
+
+void UBDraggableMedia::mouseMoveEvent(QMouseEvent* ev)
+{
+    if(!(ev->buttons() & Qt::LeftButton)){
+        return;
+    }
+    if((ev->pos() - mDragStartPos).manhattanLength() < QApplication::startDragDistance()){
+        return;
+    }
+    QDrag *drag = new QDrag(this);
+    QMimeData *mimeData = new QMimeData;
+
+    QList<QUrl> urls;
+    urls << QUrl(mFilePath);
+    mimeData->setText(mFilePath);
+    mimeData->setUrls(urls);
+
+    drag->setMimeData(mimeData);
+
+    Qt::DropAction dropAction = drag->exec(Qt::CopyAction | Qt::MoveAction);
+}

src/customWidgets/UBDraggableMedia.h

@@ -0,0 +1,19 @@
+#ifndef UBDRAGGABLEMEDIA_H
+#define UBDRAGGABLEMEDIA_H
+
+#include "UBMediaWidget.h"
+
+class UBDraggableMedia : public UBMediaWidget
+{
+public:
+    UBDraggableMedia(eMediaType type = eMediaType_Video, QWidget* parent=0, const char* name="UBDraggableMedia");
+    ~UBDraggableMedia();
+protected:
+    void mousePressEvent(QMouseEvent* ev);
+    void mouseMoveEvent(QMouseEvent* ev);
+
+private:
+    QPoint mDragStartPos;
+};
+
+#endif // UBDRAGGABLEMEDIA_H

src/customWidgets/UBMediaWidget.h

@@ -72,6 +72,8 @@ public:
 protected:
     void resizeEvent(QResizeEvent* ev);
     void showEvent(QShowEvent* event);
+    /** The current media file path */
+    QString mFilePath;
 
 private slots:
     void onPlayStopClicked();
@@ -85,8 +87,6 @@ private:
     void createMediaPlayer();
     void adaptSizeToVideo();
 
-    /** The current media file path */
-    QString mFilePath;
     /** The current media type */
     eMediaType mType;
     /** The media object */

src/customWidgets/customWidgets.pri

@@ -2,8 +2,10 @@
 HEADERS      += src/customWidgets/UBWidgetList.h \
     src/customWidgets/UBDraggableLabel.h \
     src/customWidgets/UBMediaWidget.h \
-    src/customWidgets/UBGlobals.h
+    src/customWidgets/UBGlobals.h \
+    src/customWidgets/UBDraggableMedia.h
                 
 SOURCES      += src/customWidgets/UBWidgetList.cpp \
     src/customWidgets/UBDraggableLabel.cpp \
-    src/customWidgets/UBMediaWidget.cpp
+    src/customWidgets/UBMediaWidget.cpp \
+    src/customWidgets/UBDraggableMedia.cpp

src/gui/UBTeacherBarPreviewWidget.cpp

@@ -316,17 +316,13 @@ void UBTeacherBarPreviewWidget::generateMedias()
         foreach(QString mediaUrl, *mpDataMgr->mediaUrls()){
             QString mimeType = UBFileSystemUtils::mimeTypeFromFileName(mediaUrl);
             if(mimeType.contains("image")){
-                QPixmap pix = QPixmap(mediaUrl);
+                mpTmpLabel = new UBDraggableLabel();
-                QLabel* label = new QLabel();
+                mpTmpLabel->loadImage(mediaUrl);
-                pix.scaledToWidth(label->width());
+                mStoredWidgets << mpTmpLabel;
-                label->resize(pix.width(), pix.height());
+                mpContentContainer->addWidget(mpTmpLabel);
-                label->setPixmap(pix);
-                label->setScaledContents(true);
-                mStoredWidgets << label;
-                mpContentContainer->addWidget(label);
             }
             else if(mimeType.contains("video") || mimeType.contains("audio")){
-                UBMediaWidget* mediaPlayer = new UBMediaWidget(mimeType.contains("audio")?eMediaType_Audio:eMediaType_Video);
+                UBDraggableMedia* mediaPlayer = new UBDraggableMedia(mimeType.contains("audio")?eMediaType_Audio:eMediaType_Video);
                 mediaPlayer->setFile(mediaUrl);
                 mStoredWidgets << mediaPlayer;
                 mpContentContainer->addWidget(mediaPlayer);
@@ -365,13 +361,3 @@ void UBTeacherBarPreviewWidget::showEvent(QShowEvent* ev)
     updateFields();
 }
 
-// -----------------------------------------------------------------------------------------------------
-UBDraggableMedia::UBDraggableMedia(eMediaType type, QWidget *parent, const char *name):UBMediaWidget(type, parent, name)
-{
-
-}
-
-UBDraggableMedia::~UBDraggableMedia()
-{
-
-}

src/gui/UBTeacherBarPreviewWidget.h

@@ -9,6 +9,8 @@
 #include "core/UBPersistenceManager.h"
 #include "customWidgets/UBWidgetList.h"
 #include "customWidgets/UBMediaWidget.h"
+#include "customWidgets/UBDraggableMedia.h"
+#include "customWidgets/UBDraggableLabel.h"
 #include "UBTeacherBarDataMgr.h"
 
 class UBTeacherBarPreviewMedia : public QWidget
@@ -57,14 +59,6 @@ public:
     ~UBTBPreviewSeparator();
 };
 
-class UBDraggableMedia : public UBMediaWidget
-{
-public:
-    UBDraggableMedia(eMediaType type = eMediaType_Video, QWidget* parent=0, const char* name="UBDraggableMedia");
-    ~UBDraggableMedia();
-
-};
-
 class UBTeacherBarPreviewWidget : public QWidget
 {
     Q_OBJECT
@@ -125,6 +119,8 @@ private:
     QTextEdit* mpTmpComment;
     /** A temporary media object */
     UBDraggableMedia* mTmpMedia;
+    /** A temporary label object */
+    UBDraggableLabel* mpTmpLabel;
 };
 
 #endif // UBTEACHERBARPREVIEWWIDGET_H

src/gui/UBTeacherBarWidget.cpp

@@ -170,7 +170,9 @@ void UBTeacherBarWidget::onTBStateChanged(eTeacherBarState state)
     case eTeacherBarState_PagePreview:
         saveContent();
         mpPreview->clearFields();
-        //mpPreview->updateFields();
+        if(mpPreview->isVisible()){
+            mpPreview->updateFields();
+        }
         mpStackWidget->setCurrentWidget(mpPreview);
         break;
     }