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Add drop hint

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58278 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2009-01-21 18:20:51 +00:00
parent a90280fe1a
commit 9deec11183
1 changed files with 43 additions and 1 deletions
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44
src/generic/datavgen.cpp
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@ -489,6 +489,7 @@ public:
bool EnableDragSource( const wxDataFormat &format );
bool EnableDropTarget( const wxDataFormat &format );
void RemoveDropHint();
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 );
@ -529,6 +530,8 @@ private:
bool m_dropEnabled;
wxDataFormat m_dropFormat;
bool m_dropHint;
unsigned int m_dropHintLine;
// for double click logic
unsigned int m_lineLastClicked,
@ -1240,6 +1243,8 @@ wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID i
m_dragEnabled = false;
m_dropEnabled = false;
m_dropHint = false;
m_dropHintLine = (unsigned int) -1;
m_hasFocus = false;
@ -1286,6 +1291,16 @@ bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
return true;
}
void wxDataViewMainWindow::RemoveDropHint()
{
if (m_dropHint)
{
m_dropHint = false;
RefreshRow( m_dropHintLine );
m_dropHintLine = (unsigned int) -1;
}
}
wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def )
{
int xx = x;
@ -1294,7 +1309,10 @@ wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x, w
unsigned int row = GetLineAt( yy );
if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
{
RemoveDropHint();
return wxDragNone;
}
wxDataViewItem item = GetItemByRow( row );
@ -1306,16 +1324,31 @@ wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x, w
event.SetModel( model );
event.SetDataFormat( format );
if (!m_owner->HandleWindowEvent( event ))
{
RemoveDropHint();
return wxDragNone;
}
if (!event.IsAllowed())
{
RemoveDropHint();
return wxDragNone;
}
if (m_dropHint && (row != m_dropHintLine))
RefreshRow( m_dropHintLine );
m_dropHint = true;
m_dropHintLine = row;
RefreshRow( row );
return def;
}
bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
{
RemoveDropHint();
int xx = x;
int yy = y;
m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
@ -1338,7 +1371,7 @@ bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
if (!event.IsAllowed())
return false;
return true;
}
@ -1376,6 +1409,7 @@ wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoo
void wxDataViewMainWindow::OnLeave()
{
RemoveDropHint();
}
void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
@ -1495,6 +1529,14 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
);
}
}
if (m_dropHint)
{
wxRect rect( x_start, GetLineStart( m_dropHintLine ), x_last, GetLineHeight( m_dropHintLine ) );
dc.SetPen( *wxBLACK_PEN );
dc.SetBrush( *wxTRANSPARENT_BRUSH );
dc.DrawRectangle( rect );
}
wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
if (!expander)