#if wxUSE_CHOICE && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
+#include "wx/choice.h"
+
#ifndef WX_PRECOMP
- #include "wx/choice.h"
#include "wx/utils.h"
#include "wx/log.h"
#include "wx/brush.h"
wxEND_FLAGS( wxChoiceStyle )
-IMPLEMENT_DYNAMIC_CLASS_XTI(wxChoice, wxControl,"wx/choice.h")
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxChoice, wxControlWithItems,"wx/choice.h")
wxBEGIN_PROPERTIES_TABLE(wxChoice)
wxEVENT_PROPERTY( Select , wxEVT_COMMAND_CHOICE_SELECTED , wxCommandEvent )
wxCONSTRUCTOR_4( wxChoice , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size )
#else
-IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems)
#endif
/*
TODO PROPERTIES
}
// and now we may finally size the control properly (if needed)
- SetBestSize(size);
+ SetInitialSize(size);
return true;
}
+void wxChoice::SetLabel(const wxString& label)
+{
+ if ( FindString(label) == wxNOT_FOUND )
+ {
+ // unless we explicitly do this here, CB_GETCURSEL will continue to
+ // return the index of the previously selected item which will result
+ // in wrongly replacing the value being set now with the previously
+ // value if the user simply opens and closes (without selecting
+ // anything) the combobox popup
+ SetSelection(-1);
+ }
+
+ wxChoiceBase::SetLabel(label);
+}
+
bool wxChoice::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
wxChoice::~wxChoice()
{
- Free();
+ Clear();
}
// ----------------------------------------------------------------------------
// adding/deleting items to/from the list
// ----------------------------------------------------------------------------
-int wxChoice::DoAppend(const wxString& item)
+int wxChoice::DoInsertItems(const wxArrayStringsAdapter& items,
+ unsigned int pos,
+ void **clientData, wxClientDataType type)
{
- int n = (int)SendMessage(GetHwnd(), CB_ADDSTRING, 0, (LPARAM)item.c_str());
- if ( n == CB_ERR )
- {
- wxLogLastError(wxT("SendMessage(CB_ADDSTRING)"));
- }
- else // ok
- {
- // we need to refresh our size in order to have enough space for the
- // newly added items
- if ( !IsFrozen() )
- UpdateVisibleHeight();
- }
+ MSWAllocStorage(items, CB_INITSTORAGE);
- InvalidateBestSize();
- return n;
-}
+ const bool append = pos == GetCount();
-int wxChoice::DoInsert(const wxString& item, unsigned int pos)
-{
- wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
- wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
+ // use CB_ADDSTRING when appending at the end to make sure the control is
+ // resorted if it has wxCB_SORT style
+ const unsigned msg = append ? CB_ADDSTRING : CB_INSERTSTRING;
- int n = (int)SendMessage(GetHwnd(), CB_INSERTSTRING, pos, (LPARAM)item.c_str());
- if ( n == CB_ERR )
- {
- wxLogLastError(wxT("SendMessage(CB_INSERTSTRING)"));
- }
- else // ok
+ if ( append )
+ pos = 0;
+
+ int n = wxNOT_FOUND;
+ const unsigned numItems = items.GetCount();
+ for ( unsigned i = 0; i < numItems; ++i )
{
- if ( !IsFrozen() )
- UpdateVisibleHeight();
+ n = MSWInsertOrAppendItem(pos, items[i], msg);
+ if ( n == wxNOT_FOUND )
+ return n;
+
+ if ( !append )
+ pos++;
+
+ AssignNewItemClientData(n, clientData, i, type);
}
+ // we need to refresh our size in order to have enough space for the
+ // newly added items
+ if ( !IsFrozen() )
+ UpdateVisibleHeight();
+
InvalidateBestSize();
+
return n;
}
-void wxChoice::Delete(unsigned int n)
+void wxChoice::DoDeleteOneItem(unsigned int n)
{
wxCHECK_RET( IsValid(n), wxT("invalid item index in wxChoice::Delete") );
- if ( HasClientObjectData() )
- {
- delete GetClientObject(n);
- }
-
SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);
if ( !IsFrozen() )
InvalidateBestSize();
}
-void wxChoice::Clear()
+void wxChoice::DoClear()
{
- Free();
-
SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0);
if ( !IsFrozen() )
InvalidateBestSize();
}
-void wxChoice::Free()
-{
- if ( HasClientObjectData() )
- {
- unsigned int count = GetCount();
- for ( unsigned int n = 0; n < count; n++ )
- {
- delete GetClientObject(n);
- }
- }
-}
-
// ----------------------------------------------------------------------------
// selection
// ----------------------------------------------------------------------------
else
{
int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT,
- (WPARAM)-1, (LPARAM)s.c_str());
+ (WPARAM)-1, (LPARAM)s.wx_str());
return pos == LB_ERR ? wxNOT_FOUND : pos;
}
// 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;
- }
+ // we need to preserve the client data manually
+ void *oldData = NULL;
+ wxClientData *oldObjData = NULL;
+ if ( HasClientUntypedData() )
+ oldData = GetClientData(n);
+ else if ( HasClientObjectData() )
+ oldObjData = GetClientObject(n);
::SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);
- ::SendMessage(GetHwnd(), CB_INSERTSTRING, n, (LPARAM)s.c_str() );
+ ::SendMessage(GetHwnd(), CB_INSERTSTRING, n, (LPARAM)s.wx_str() );
- if ( data )
- {
- DoSetItemClientData(n, data);
- }
- //else: it's already NULL by default
+ // restore the client data
+ if ( oldData )
+ SetClientData(n, oldData);
+ else if ( oldObjData )
+ SetClientObject(n, oldObjData);
InvalidateBestSize();
}
return (void *)rc;
}
-void wxChoice::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
-{
- DoSetItemClientData(n, clientData);
-}
-
-wxClientData* wxChoice::DoGetItemClientObject(unsigned int n) const
-{
- return (wxClientData *)DoGetItemClientData(n);
-}
-
// ----------------------------------------------------------------------------
// wxMSW specific helpers
// ----------------------------------------------------------------------------
{
int heightOrig = height;
+ // the height which we must pass to Windows should be the total height of
+ // the control including the drop down list while the height given to us
+ // is, of course, just the height of the permanently visible part of it
+ if ( height != wxDefaultCoord )
+ {
+ // don't make the drop down list too tall, arbitrarily limit it to 40
+ // items max and also don't leave it empty
+ size_t nItems = GetCount();
+ if ( !nItems )
+ nItems = 9;
+ else if ( nItems > 24 )
+ nItems = 24;
+
+ // add space for the drop down list
+ const int hItem = SendMessage(GetHwnd(), CB_GETITEMHEIGHT, 0, 0);
+ height += hItem*(nItems + 1);
+ }
+ else
+ {
+ // We cannot pass wxDefaultCoord as height to wxControl. wxControl uses
+ // wxGetWindowRect() to determine the current height of the combobox,
+ // and then again sets the combobox's height to that value. Unfortunately,
+ // wxGetWindowRect doesn't include the dropdown list's height (at least
+ // on Win2K), so this would result in a combobox with dropdown height of
+ // 1 pixel. We have to determine the default height ourselves and call
+ // wxControl with that value instead.
+ int w, h;
+ RECT r;
+ DoGetSize(&w, &h);
+ if (::SendMessage(GetHwnd(), CB_GETDROPPEDCONTROLRECT, 0, (LPARAM) &r) != 0)
+ {
+ height = h + r.bottom - r.top;
+ }
+ }
+
+ wxControl::DoSetSize(x, y, width, height, sizeFlags);
+
+ // If we're storing a pending size, make sure we store
+ // the original size for reporting back to the app.
+ if (m_pendingSize != wxDefaultSize)
+ m_pendingSize = wxSize(width, heightOrig);
+
+ // This solution works on XP, but causes choice/combobox lists to be
+ // too short on W2K and earlier.
+#if 0
int widthCurrent, heightCurrent;
DoGetSize(&widthCurrent, &heightCurrent);
{
// don't make the drop down list too tall, arbitrarily limit it to 40
// items max and also don't leave it empty
- size_t nItems = GetCount();
+ unsigned int nItems = GetCount();
if ( !nItems )
nItems = 9;
else if ( nItems > 24 )
}
wxControl::DoSetSize(x, y, width, height, sizeFlags);
-
- // I'm commenting this out since the code appears to make choices
- // and comboxes too high when they have associated sizers. I'm sure this
- // is not the end of the story, which is why I'm leaving it #if'ed out for
- // now. JACS.
-#if 0
- // if the height specified for the visible part of the control is
- // different from the current one, we need to change it separately
- // as it is not affected by normal WM_SETSIZE
- if ( height != wxDefaultCoord )
- {
- const int delta = heightOrig - GetSize().y;
- if ( delta )
- {
- int h = ::SendMessage(GetHwnd(), CB_GETITEMHEIGHT, (WPARAM)-1, 0);
- SendMessage(GetHwnd(), CB_SETITEMHEIGHT, (WPARAM)-1, h + delta);
- }
- }
-#else
- wxUnusedVar(heightOrig);
#endif
}
// need to reset the selection back to it if it's eventually
// cancelled by user
m_lastAcceptedSelection = GetCurrentSelection();
+ if ( m_lastAcceptedSelection == -1 )
+ {
+ // no current selection so no need to restore it later (this
+ // happens when opening a combobox containing text not from its
+ // list of items and we shouldn't erase this text)
+ m_lastAcceptedSelection = wxID_NONE;
+ }
break;
case CBN_CLOSEUP:
if ( n > -1 )
{
event.SetString(GetStringSelection());
- if ( HasClientObjectData() )
- event.SetClientObject( GetClientObject(n) );
- else if ( HasClientUntypedData() )
- event.SetClientData( GetClientData(n) );
+ InitCommandEventWithItems(event, n);
}
ProcessCommand(event);
projects / wxWidgets.git / blobdiff