// Modified by: Vadim Zeitlin to derive from wxChoiceBase
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
#pragma hdrstop
#endif
+#if wxUSE_CHOICE
+
#ifndef WX_PRECOMP
#include "wx/choice.h"
#include "wx/utils.h"
#include "wx/msw/private.h"
- IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
// ============================================================================
// implementation
// A choice/combobox normally has a white background (or other, depending
// on global settings) rather than inheriting the parent's background colour.
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
+ SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
for ( int i = 0; i < n; i++ )
{
return n;
}
+int wxChoice::DoInsert(const wxString& item, int pos)
+{
+ wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
+ wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
+
+ int n = (int)SendMessage(GetHwnd(), CB_INSERTSTRING, pos, (LONG)item.c_str());
+ if ( n == CB_ERR )
+ {
+ wxLogLastError(wxT("SendMessage(CB_INSERTSTRING)"));
+ }
+
+ return n;
+}
+
void wxChoice::Delete(int n)
{
wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
#endif // Watcom/!Watcom
}
-void wxChoice::SetString(int WXUNUSED(n), const wxString& WXUNUSED(s))
+void wxChoice::SetString(int n, const wxString& s)
{
- wxFAIL_MSG(wxT("not implemented"));
+ wxCHECK_RET( n >= 0 && n < GetCount(),
+ wxT("invalid item index in wxChoice::SetString") );
-#if 0 // should do this, but no Insert() so far
- Delete(n);
- Insert(n + 1, s);
-#endif
+ // we have to delete and add back the string as there is no way to change a
+ // string in place
+
+ // we need to preserve the client data
+ void *data;
+ if ( m_clientDataItemsType != wxClientData_None )
+ {
+ data = DoGetItemClientData(n);
+ }
+ else // no client data
+ {
+ data = NULL;
+ }
+
+ ::SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);
+ ::SendMessage(GetHwnd(), CB_INSERTSTRING, n, (LPARAM)s.c_str() );
+
+ if ( data )
+ {
+ DoSetItemClientData(n, data);
+ }
+ //else: it's already NULL by default
}
wxString wxChoice::GetString(int n) const
{
- size_t len = (size_t)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0);
+ int len = (int)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0);
+
wxString str;
- if (len) {
- if ( ::SendMessage(GetHwnd(), CB_GETLBTEXT, n,
- (LPARAM)str.GetWriteBuf(len)) == CB_ERR ) {
+ if ( len != CB_ERR && len > 0 )
+ {
+ if ( ::SendMessage
+ (
+ GetHwnd(),
+ CB_GETLBTEXT,
+ n,
+ (LPARAM)(wxChar *)wxStringBuffer(str, len)
+ ) == CB_ERR )
+ {
wxLogLastError(wxT("SendMessage(CB_GETLBTEXT)"));
}
+
str.UngetWriteBuf();
}
void wxChoice::DoSetItemClientData( int n, void* clientData )
{
- if ( SendMessage(GetHwnd(), CB_SETITEMDATA, n, (LPARAM)clientData) == CB_ERR )
+ if ( ::SendMessage(GetHwnd(), CB_SETITEMDATA,
+ n, (LPARAM)clientData) == CB_ERR )
{
wxLogLastError(wxT("CB_SETITEMDATA"));
}
// wxMSW specific helpers
// ----------------------------------------------------------------------------
+void wxChoice::DoMoveWindow(int x, int y, int width, int height)
+{
+ // here is why this is necessary: if the width is negative, the combobox
+ // window proc makes the window of the size width*height instead of
+ // interpreting height in the usual manner (meaning the height of the drop
+ // down list - usually the height specified in the call to MoveWindow()
+ // will not change the height of combo box per se)
+ //
+ // this behaviour is not documented anywhere, but this is just how it is
+ // here (NT 4.4) and, anyhow, the check shouldn't hurt - however without
+ // the check, constraints/sizers using combos may break the height
+ // constraint will have not at all the same value as expected
+ if ( width < 0 )
+ return;
+
+ wxControl::DoMoveWindow(x, y, width, height);
+}
+
void wxChoice::DoSetSize(int x, int y,
int width, int WXUNUSED(height),
int sizeFlags)
// wxWindows interpretation is different; also, getting the size returns
// the _displayed_ size (NOT the drop down menu size) so
// setting-getting-setting size would not work.
+
wxControl::DoSetSize(x, y, width, -1, sizeFlags);
}
}
WXHBRUSH wxChoice::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
-#if wxUSE_CTL3D
- WXUINT message,
- WXWPARAM wParam,
- WXLPARAM lParam
-#else
WXUINT WXUNUSED(message),
WXWPARAM WXUNUSED(wParam),
WXLPARAM WXUNUSED(lParam)
-#endif
)
{
-#if wxUSE_CTL3D
- if ( m_useCtl3D )
- {
- HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
- return (WXHBRUSH) hbrush;
- }
-#endif // wxUSE_CTL3D
-
HDC hdc = (HDC)pDC;
- if (GetParent()->GetTransparentBackground())
- SetBkMode(hdc, TRANSPARENT);
- else
- SetBkMode(hdc, OPAQUE);
-
wxColour colBack = GetBackgroundColour();
if (!IsEnabled())
- colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
+ colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
::SetBkColor(hdc, wxColourToRGB(colBack));
::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
return (WXHBRUSH)brush->GetResourceHandle();
}
-
+#endif // wxUSE_CHOICE
projects / wxWidgets.git / blobdiff