void wxComboBox::SetLayoutDirection(wxLayoutDirection dir)
{
// Edit field and drop-down list must be handled explicitly.
// Edit field is a special EDIT control (e.g. it always returns null
// extended style flags), so its layout direction should be set using the
// same extended flag as for ordinary window but reset simply with
// alignment flags.
if ( !HasFlag(wxCB_READONLY) )
{
if ( dir == wxLayout_RightToLeft )
{
wxUpdateLayoutDirection(GetEditHWND(), dir);
}
else
{
LONG_PTR style = ::GetWindowLongPtr(GetEditHWND(), GWL_STYLE);
if ( !(style & ES_CENTER) )
{
style &= ~ES_RIGHT;
::SetWindowLongPtr(GetEditHWND(), GWL_STYLE, style);
}
}
}
// Layout for the drop-down list also must be set explicitly.
WinStruct<COMBOBOXINFO> info;
if ( ::GetComboBoxInfo(GetHwnd(), &info) )
{
wxUpdateLayoutDirection(info.hwndList, dir);
}
wxChoice::SetLayoutDirection(dir);
}
void wxComboBox::DoSetToolTip(wxToolTip *tip)
{
wxChoice::DoSetToolTip(tip);
if ( tip && !HasFlag(wxCB_READONLY) )
tip->AddOtherWindow(GetEditHWND());
}
void wxComboBox::Undo()
{
if (CanUndo())
{
HWND hEditWnd = (HWND) GetEditHWND() ;
if ( hEditWnd )
::SendMessage(hEditWnd, EM_UNDO, 0, 0);
}
}
wxTextPos wxComboBox::GetLastPosition() const
{
HWND hEditWnd = (HWND) GetEditHWND();
// Get number of characters in the last (only) line. We'll add this to the character
// index for the last line, 1st position.
wxTextPos lineLength = (wxTextPos)SendMessage(hEditWnd, EM_LINELENGTH, (WPARAM) 0, (LPARAM)0L);
return lineLength;
}
void wxComboBox::Redo()
{
if (CanUndo())
{
// Same as Undo, since Undo undoes the undo, i.e. a redo.
HWND hEditWnd = (HWND) GetEditHWND() ;
if ( hEditWnd )
::SendMessage(hEditWnd, EM_UNDO, 0, 0);
}
}
bool wxComboBox::CanRedo() const
{
if (!IsEditable())
return false;
HWND hEditWnd = (HWND) GetEditHWND() ;
if ( hEditWnd )
return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
else
return false;
}
void wxTextEntry::WriteText(const wxString& text)
{
wxString newText = wxGetWindowText(GetEditHWND());
long from, to;
GetSelection(&from, &to);
if (from > to){
long swp = to;
to = from;
from = swp;
}
// Compose the new Text by replacing the selection of the old text
newText.replace(from, to - from, text);
// Set control to the new text
::WinSetWindowText(GetEditHwnd(), text.c_str());
}
void wxComboBox::SetInsertionPoint(long pos)
{
if ( GetWindowStyle() & wxCB_READONLY )
return;
#ifdef __WIN32__
HWND hWnd = GetHwnd();
::SendMessage(hWnd, CB_SETEDITSEL, 0, MAKELPARAM(pos, pos));
HWND hEditWnd = (HWND) GetEditHWND() ;
if ( hEditWnd )
{
// Scroll insertion point into view
SendMessage(hEditWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
// Why is this necessary? (Copied from wxTextCtrl::SetInsertionPoint)
SendMessage(hEditWnd, EM_REPLACESEL, 0, (LPARAM) wxEmptyString);
}
#endif // __WIN32__
}
bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
const wxString& value,
const wxPoint& pos,
const wxSize& size,
int n, const wxString choices[],
long style,
const wxValidator& validator,
const wxString& name)
{
// pretend that wxComboBox is hidden while it is positioned and resized and
// show it only right before leaving this method because otherwise there is
// some noticeable flicker while the control rearranges itself
m_isShown = false;
if ( !CreateAndInit(parent, id, pos, size, n, choices, style,
validator, name) )
return false;
// we shouldn't call SetValue() for an empty string because this would
// (correctly) result in an assert with a read only combobox and is useless
// for the other ones anyhow
if ( !value.empty() )
SetValue(value);
// a (not read only) combobox is, in fact, 2 controls: the combobox itself
// and an edit control inside it and if we want to catch events from this
// edit control, we must subclass it as well
if ( !(style & wxCB_READONLY) )
{
gs_wndprocEdit = wxSetWindowProc((HWND)GetEditHWND(),
wxComboEditWndProc);
}
// and finally, show the control
Show(true);
return true;
}
wxString wxTextEntry::DoGetValue() const
{
return wxGetWindowText(GetEditHWND());
}
