// wxControl-specific processing after processing the update event
void wxControlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
{
// call inherited
wxWindowBase::DoUpdateWindowUI(event);
// update label
if ( event.GetSetText() )
{
if ( event.GetText() != GetLabel() )
SetLabel(event.GetText());
}
// Unfortunately we don't yet have common base class for
// wxRadioButton, so we handle updates of radiobuttons here.
// TODO: If once wxRadioButtonBase will exist, move this code there.
#if wxUSE_RADIOBTN
if ( event.GetSetChecked() )
{
wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
if ( radiobtn )
radiobtn->SetValue(event.GetChecked());
}
#endif // wxUSE_RADIOBTN
}
bool wxControl::MSWCreateControl(const wxChar *classname,
WXDWORD style,
const wxPoint& pos,
const wxSize& size,
const wxString& label,
WXDWORD exstyle)
{
// if no extended style given, determine it ourselves
if ( exstyle == (WXDWORD)-1 )
{
exstyle = 0;
(void) MSWGetStyle(GetWindowStyle(), &exstyle);
}
// all controls should have this style
style |= WS_CHILD;
// create the control visible if it's currently shown for wxWidgets
if ( m_isShown )
{
style |= WS_VISIBLE;
}
// choose the position for the control: we have a problem with default size
// here as we can't calculate the best size before the control exists
// (DoGetBestSize() may need to use m_hWnd), so just choose the minimal
// possible but non 0 size because 0 window width/height result in problems
// elsewhere
int x = pos.x == wxDefaultCoord ? 0 : pos.x,
y = pos.y == wxDefaultCoord ? 0 : pos.y,
w = size.x == wxDefaultCoord ? 1 : size.x,
h = size.y == wxDefaultCoord ? 1 : size.y;
// ... and adjust it to account for a possible parent frames toolbar
AdjustForParentClientOrigin(x, y);
m_hWnd = (WXHWND)::CreateWindowEx
(
exstyle, // extended style
classname, // the kind of control to create
label.t_str(), // the window name
style, // the window style
x, y, w, h, // the window position and size
GetHwndOf(GetParent()), // parent
(HMENU)wxUIntToPtr(GetId()), // child id
wxGetInstance(), // app instance
NULL // creation parameters
);
if ( !m_hWnd )
{
wxLogLastError(wxString::Format
(
wxT("CreateWindowEx(\"%s\", flags=%08lx, ex=%08lx)"),
classname, style, exstyle
));
return false;
}
#if !wxUSE_UNICODE
// Text labels starting with the character 0xff (which is a valid character
// in many code pages) don't appear correctly as CreateWindowEx() has some
// special treatment for this case, apparently the strings starting with -1
// are not really strings but something called "ordinals". There is no
// documentation about it but the fact is that the label gets mangled or
// not displayed at all if we don't do this, see #9572.
//
// Notice that 0xffff is not a valid Unicode character so the problem
// doesn't arise in Unicode build.
if ( !label.empty() && label[0] == -1 )
::SetWindowText(GetHwnd(), label.t_str());
#endif // !wxUSE_UNICODE
// saving the label in m_labelOrig to return it verbatim
// later in GetLabel()
m_labelOrig = label;
// install wxWidgets window proc for this window
SubclassWin(m_hWnd);
// set up fonts and colours
InheritAttributes();
if ( !m_hasFont )
{
bool setFont = true;
wxFont font = GetDefaultAttributes().font;
// if we set a font for {list,tree}ctrls and the font size is changed in
// the display properties then the font size for these controls doesn't
// automatically adjust when they receive WM_SETTINGCHANGE
// FIXME: replace the dynamic casts with virtual function calls!!
#if wxUSE_LISTCTRL || wxUSE_TREECTRL
bool testFont = false;
#if wxUSE_LISTCTRL
if ( wxDynamicCastThis(wxListCtrl) )
testFont = true;
#endif // wxUSE_LISTCTRL
#if wxUSE_TREECTRL
if ( wxDynamicCastThis(wxTreeCtrl) )
testFont = true;
#endif // wxUSE_TREECTRL
if ( testFont )
{
// not sure if we need to explicitly set the font here for Win95/NT4
// but we definitely can't do it for any newer version
// see wxGetCCDefaultFont() in src/msw/settings.cpp for explanation
// of why this test works
// TODO: test Win95/NT4 to see if this is needed or breaks the
// font resizing as it does on newer versions
if ( font != wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT) )
{
setFont = false;
}
}
#endif // wxUSE_LISTCTRL || wxUSE_TREECTRL
if ( setFont )
{
SetFont(GetDefaultAttributes().font);
}
}
// set the size now if no initial size specified
SetInitialSize(size);
return true;
}
