void ContentBoxCtrol::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxSize clientSize = GetClientSize();
wxAutoBufferedPaintDC dc(this);
// the update rectangle
wxRect rectUpdate = GetUpdateClientRect();
// fill it with background colour
dc.SetBackground(GetBackgroundColour());
dc.Clear();
// the bounding rectangle of the current line
wxRect rectLine;
rectLine.width = clientSize.x;
// iterate over all visible lines
const size_t lineMax = GetVisibleEnd();
for ( size_t line = GetVisibleRowsBegin(); line < lineMax; line++ )
{
const wxCoord hLine = OnGetLineHeight(line);
rectLine.height = hLine;
// and draw the ones which intersect the update rect
if ( rectLine.Intersects(rectUpdate) )
{
// don't allow drawing outside of the lines rectangle
wxDCClipper clip(dc, rectLine);
wxRect rect = rectLine;
OnDrawBackground(dc, rect, line);
OnDrawSeparator(dc, rect, line);
rect.Deflate(m_ptMargins.x, m_ptMargins.y);
OnDrawItem(dc, rect, line);
}
else // no intersection
{
if ( rectLine.GetTop() > rectUpdate.GetBottom() )
{
// we are already below the update rect, no need to continue
// further
break;
}
//else: the next line may intersect the update rect
}
rectLine.y += hLine;
}
}
bool wxVListBox::DoSetCurrent(int current)
{
wxASSERT_MSG( current == wxNOT_FOUND ||
(current >= 0 && (size_t)current < GetItemCount()),
wxT("wxVListBox::DoSetCurrent(): invalid item index") );
if ( current == m_current )
{
// nothing to do
return false;
}
if ( m_current != wxNOT_FOUND )
RefreshRow(m_current);
m_current = current;
if ( m_current != wxNOT_FOUND )
{
// if the line is not visible at all, we scroll it into view but we
// don't need to refresh it -- it will be redrawn anyhow
if ( !IsVisible(m_current) )
{
ScrollToRow(m_current);
}
else // line is at least partly visible
{
// it is, indeed, only partly visible, so scroll it into view to
// make it entirely visible
// BUT scrolling down when m_current is first visible makes it
// completely hidden, so that is even worse
while ( (size_t)m_current + 1 == GetVisibleRowsEnd() &&
(size_t)m_current != GetVisibleRowsBegin() &&
ScrollToRow(GetVisibleBegin() + 1) ) ;
// but in any case refresh it as even if it was only partly visible
// before we need to redraw it entirely as its background changed
RefreshRow(m_current);
}
}
return true;
}
// -------------------------------------------------------------------------------- //
void guAlListBox::ReloadItems( bool reset )
{
wxArrayInt Selection;
int FirstVisible = GetVisibleRowsBegin();
if( reset )
SetSelection( -1 );
else
Selection = GetSelectedItems( false );
m_Items->Empty();
GetItemsList();
m_Items->Insert( new guAlbumItem( 0, wxString::Format( wxT( "%s (%lu)" ), _( "All" ), m_Items->Count() ) ), 0 );
SetItemCount( m_Items->Count() );
if( !reset )
{
SetSelectedItems( Selection );
ScrollToRow( FirstVisible );
}
RefreshAll();
}
void ContentBoxCtrol::OnKeyDown(wxKeyEvent& event)
{
// flags for DoHandleItemClick()
int flags = ItemClick_Kbd;
int current;
switch ( event.GetKeyCode() )
{
case WXK_HOME:
current = 0;
break;
case WXK_END:
current = GetRowCount() - 1;
break;
case WXK_DOWN:
if ( m_current == (int)GetRowCount() - 1 )
return;
current = m_current + 1;
break;
case WXK_UP:
if ( m_current == wxNOT_FOUND )
current = GetRowCount() - 1;
else if ( m_current != 0 )
current = m_current - 1;
else // m_current == 0
return;
break;
case WXK_PAGEDOWN:
PageDown();
current = GetVisibleRowsBegin();
break;
case WXK_PAGEUP:
if ( m_current == (int)GetVisibleRowsBegin() )
{
PageUp();
}
current = GetVisibleRowsBegin();
break;
case WXK_SPACE:
// hack: pressing space should work like a mouse click rather than
// like a keyboard arrow press, so trick DoHandleItemClick() in
// thinking we were clicked
flags &= ~ItemClick_Kbd;
current = m_current;
break;
#if (LENMUS_PLATFORM_WIN32 == 1)
case WXK_TAB:
// Since we are using wxWANTS_CHARS we need to send navigation
// events for the tabs on MSW
{
wxNavigationKeyEvent ne;
ne.SetDirection(!event.ShiftDown());
ne.SetCurrentFocus(this);
ne.SetEventObject(this);
GetParent()->GetEventHandler()->ProcessEvent(ne);
}
// fall through to default
#endif
default:
event.Skip(); //continue processing the event
current = 0; // just to silent the stupid compiler warnings
wxUnusedVar(current);
return;
}
if ( event.ShiftDown() )
flags |= ItemClick_Shift;
if ( event.ControlDown() )
flags |= ItemClick_Ctrl;
DoHandleItemClick(current, flags);
}