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Implement simple Drop, doesn't work under wxMSW (?)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58261 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2009-01-21 14:02:44 +00:00
parent 51c9c13c05
commit a653c966d4
1 changed files with 163 additions and 12 deletions
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175
src/generic/datavgen.cpp
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@ -486,18 +486,13 @@ public:
void Collapse( unsigned int row ) { OnCollapsing( row ); }
bool IsExpanded( unsigned int row ) const;
bool EnableDragSource( const wxDataFormat &format )
{
m_dragFormat = format;
m_dragEnabled = format != wxDF_INVALID;
return true;
}
bool EnableDropTarget( const wxDataFormat &format )
{
m_dropFormat = format;
m_dropEnabled = format != wxDF_INVALID;
return true;
}
bool EnableDragSource( const wxDataFormat &format );
bool EnableDropTarget( const wxDataFormat &format );
wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
void OnLeave();
private:
wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
@ -1136,6 +1131,51 @@ wxDataViewIconTextRenderer::GetValueFromEditorCtrl(wxControl* WXUNUSED(editor),
return false;
}
//-----------------------------------------------------------------------------
// wxDataViewDropTarget
//-----------------------------------------------------------------------------
class wxDataViewDropTarget: public wxDropTarget
{
public:
wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
wxDropTarget( obj )
{
m_win = win;
}
virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
{
wxDataFormat format = GetMatchingPair();
if (format == wxDF_INVALID)
return wxDragNone;
return m_win->OnDragOver( format, x, y, def);
}
virtual bool OnDrop( wxCoord x, wxCoord y )
{
wxDataFormat format = GetMatchingPair();
if (format == wxDF_INVALID)
return false;
return m_win->OnDrop( format, x, y );
}
virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
{
wxDataFormat format = GetMatchingPair();
if (format == wxDF_INVALID)
return wxDragNone;
if (!GetData())
return wxDragNone;
return m_win->OnData( format, x, y, def );
}
virtual void OnLeave()
{ m_win->OnLeave(); }
wxDataViewMainWindow *m_win;
};
//-----------------------------------------------------------------------------
// wxDataViewRenameTimer
//-----------------------------------------------------------------------------
@ -1227,6 +1267,117 @@ wxDataViewMainWindow::~wxDataViewMainWindow()
delete m_renameTimer;
}
bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
{
m_dragFormat = format;
m_dragEnabled = format != wxDF_INVALID;
return true;
}
bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
{
m_dropFormat = format;
m_dropEnabled = format != wxDF_INVALID;
if (m_dropEnabled)
SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
return true;
}
wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def )
{
int xx = x;
int yy = y;
m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
unsigned int row = GetLineAt( yy );
if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
return wxDragNone;
wxDataViewItem item = GetItemByRow( row );
wxDataViewModel *model = GetOwner()->GetModel();
wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
event.SetEventObject( m_owner );
event.SetItem( item );
event.SetModel( model );
event.SetDataFormat( format );
if (!m_owner->HandleWindowEvent( event ))
return wxDragNone;
if (!event.IsAllowed())
return wxDragNone;
return def;
}
bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
{
int xx = x;
int yy = y;
m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
unsigned int row = GetLineAt( yy );
if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
return false;
wxDataViewItem item = GetItemByRow( row );
wxDataViewModel *model = GetOwner()->GetModel();
wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
event.SetEventObject( m_owner );
event.SetItem( item );
event.SetModel( model );
event.SetDataFormat( format );
if (!m_owner->HandleWindowEvent( event ))
return false;
if (!event.IsAllowed())
return false;
return true;
}
wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def )
{
int xx = x;
int yy = y;
m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
unsigned int row = GetLineAt( yy );
if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
return wxDragNone;
wxDataViewItem item = GetItemByRow( row );
wxDataViewModel *model = GetOwner()->GetModel();
wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
event.SetEventObject( m_owner );
event.SetItem( item );
event.SetModel( model );
event.SetDataFormat( format );
event.SetDataSize( obj->GetSize() );
event.SetDataBuffer( obj->GetData() );
if (!m_owner->HandleWindowEvent( event ))
return wxDragNone;
if (!event.IsAllowed())
return wxDragNone;
return def;
}
void wxDataViewMainWindow::OnLeave()
{
}
void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
wxDataViewModel *model = GetOwner()->GetModel();