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Simplified event based Drag API for wxDataViewCtrl

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58238 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2009-01-20 11:58:52 +00:00
parent 8c33ee2549
commit 591cc82deb
5 changed files with 68 additions and 86 deletions
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49
samples/dataview/dataview.cpp
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@@ -669,10 +669,7 @@ public:
void OnGoto( wxCommandEvent &event);
void OnAddMany( wxCommandEvent &event);
// DnD
void OnDraggable( wxDataViewEvent &event );
void OnGetDragDataSize( wxDataViewEvent &event );
void OnGetDragData( wxDataViewEvent &event );
void OnBeginDrag( wxDataViewEvent &event );
private:
wxDataViewCtrl* m_musicCtrl;
@@ -769,9 +766,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_DATAVIEW_ITEM_CONTEXT_MENU(ID_MUSIC_CTRL, MyFrame::OnContextMenu)
EVT_DATAVIEW_ITEM_DRAGGABLE( ID_MUSIC_CTRL, MyFrame::OnDraggable )
EVT_DATAVIEW_ITEM_GET_DRAG_DATA_SIZE( ID_MUSIC_CTRL, MyFrame::OnGetDragDataSize )
EVT_DATAVIEW_ITEM_GET_DRAG_DATA( ID_MUSIC_CTRL, MyFrame::OnGetDragData )
EVT_DATAVIEW_ITEM_BEGIN_DRAG( ID_MUSIC_CTRL, MyFrame::OnBeginDrag )
EVT_RIGHT_UP(MyFrame::OnRightClick)
END_EVENT_TABLE()
@@ -1160,41 +1155,19 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
wxAboutBox(info);
}
void MyFrame::OnDraggable( wxDataViewEvent &event )
void MyFrame::OnBeginDrag( wxDataViewEvent &event )
{
wxDataViewItem item( event.GetItem() );
// only allow drags for item, not containers
event.SetDraggable( !m_music_model->IsContainer( event.GetItem() ) );
}
void MyFrame::OnGetDragDataSize( wxDataViewEvent &event )
{
if (event.GetDataFormat() == wxDF_TEXT)
if (m_music_model->IsContainer( item ) )
{
wxDataViewItem item( event.GetItem() );
MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
wxTextDataObject obj;
obj.SetText( node->m_artist );
size_t size = obj.GetDataSize( wxDF_TEXT );
event.SetDragDataSize( size );
event.Veto();
return;
}
event.Skip();
}
void MyFrame::OnGetDragData( wxDataViewEvent &event )
{
if (event.GetDataFormat() == wxDF_TEXT)
{
wxDataViewItem item( event.GetItem() );
MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
wxTextDataObject obj;
obj.SetText( node->m_artist );
obj.GetDataHere( wxDF_TEXT, event.GetDragDataBuffer() );
return;
}
event.Skip();
MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
wxTextDataObject *obj = new wxTextDataObject;
obj->SetText( node->m_title );
event.SetDataObject( obj );
}