Developer Documentation
QtBaseViewerDragDrop.cc
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44 
45 
46 //=============================================================================
47 //
48 // CLASS QtBaseViewer - IMPLEMENTATION
49 //
50 //=============================================================================
51 
52 
53 //== INCLUDES =================================================================
54 
55 #include "QtBaseViewer.hh"
56 #include <QDrag>
57 #include <QMimeData>
58 
59 //== NAMESPACES ===============================================================
60 
61 namespace ACG {
62 namespace QtWidgets {
63 
64 
65 //== IMPLEMENTATION ==========================================================
66 
68 {
69  QString view;
70  encodeView(view);
71 
72  QDrag * drag = new QDrag( this );
73  QMimeData * mime_data = new QMimeData();
74 
75  mime_data->setText( view );
76  drag->setMimeData( mime_data );
77  drag->start();
78 }
79 
80 
81 void QtBaseViewer::glDragEnterEvent(QDragEnterEvent* _event)
82 {
83  if ( externalDrag_ ) {
84  emit dragEnterEvent(_event);
85  } else {
86  if ( _event->mimeData()->hasFormat("text/plain") )
87  _event->acceptProposedAction();
88  }
89 }
90 
91 
92 void QtBaseViewer::glDropEvent(QDropEvent* _event)
93 {
94  if ( externalDrag_ ) {
95  emit dropEvent( _event );
96  } else {
97  if ( _event->source() != this )
98  {
99  QString view( _event->mimeData()->text() );
100  decodeView(view);
101  _event->acceptProposedAction();
102  }
103  }
104 }
105 
106 //=============================================================================
107 } // namespace QtWidgets
108 } // namespace ACG
109 //=============================================================================
void dropEvent(QDropEvent *_event)
Namespace providing different geometric functions concerning angles.
void dragEnterEvent(QDragEnterEvent *_event)
virtual void startDrag()
drag & drop for modelview copying
void encodeView(QString &_view)
convert current view to text representation
virtual void glDropEvent(QDropEvent *_event)
drag & drop for modelview copying
bool decodeView(const QString &_view)
virtual void glDragEnterEvent(QDragEnterEvent *_event)
drag & drop for modelview copying