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New eventb based Drag interface for wxDataViewCtrl

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58236 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2009-01-19 22:27:06 +00:00
parent 304a807af9
commit 15cac64f75
5 changed files with 141 additions and 66 deletions
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85
samples/dataview/dataview.cpp
View File

@@ -378,38 +378,6 @@ public:
return count;
}
// DnD
virtual bool IsDraggable( const wxDataViewItem &item )
{
// only drag items
return (!IsContainer(item));
}
virtual size_t GetDragDataSize( const wxDataViewItem &item, const wxDataFormat &WXUNUSED(format) )
{
wxPrintf( "GetDragDataSize\n" );
MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
wxString data;
data += node->m_title; data += wxT(" ");
data += node->m_artist;
return strlen( data.utf8_str() ) + 1;
}
virtual bool GetDragData( const wxDataViewItem &item, const wxDataFormat &WXUNUSED(format),
void* dest, size_t WXUNUSED(size) )
{
wxPrintf( "GetDragData\n" );
MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
wxString data;
data += node->m_title; data += wxT(" ");
data += node->m_artist;
wxCharBuffer buffer( data.utf8_str() );
memcpy( dest, buffer, strlen(buffer)+1 );
return true;
}
wxDataViewItem GetNinthItem()
{
return wxDataViewItem( m_ninth );
@@ -700,6 +668,11 @@ public:
void OnRightClick( wxMouseEvent &event );
void OnGoto( wxCommandEvent &event);
void OnAddMany( wxCommandEvent &event);
// DnD
void OnDraggable( wxDataViewEvent &event );
void OnGetDragDataSize( wxDataViewEvent &event );
void OnGetDragData( wxDataViewEvent &event );
private:
wxDataViewCtrl* m_musicCtrl;
@@ -795,6 +768,10 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_DATAVIEW_COLUMN_SORTED(ID_MUSIC_CTRL, MyFrame::OnSorted)
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_RIGHT_UP(MyFrame::OnRightClick)
END_EVENT_TABLE()
@@ -833,6 +810,8 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
m_music_model = new MyMusicModel;
m_musicCtrl->AssociateModel( m_music_model.get() );
m_musicCtrl->EnableDragSource( wxDF_TEXT );
wxDataViewTextRenderer *tr = new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_INERT );
wxDataViewColumn *column0 = new wxDataViewColumn( wxT("title"), tr, 0, 200, wxALIGN_LEFT,
@@ -1175,9 +1154,47 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
wxAboutDialogInfo info;
info.SetName(_("DataView sample"));
info.SetDescription(_("This sample demonstrates the dataview control handling"));
info.SetCopyright(_T("(C) 2007 Robert Roebling"));
info.SetDescription(_("This sample demonstrates wxDataViewCtrl"));
info.SetCopyright(_T("(C) 2007-2009 Robert Roebling"));
wxAboutBox(info);
}
void MyFrame::OnDraggable( wxDataViewEvent &event )
{
// 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)
{
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 );
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();
}