X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/aa61d3525370a9b9fa8c797d9b7f89d96994db5f..e5ef1cae0f424be0bffbd651cb10052dfb208396:/src/msw/choice.cpp?ds=inline diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp index 6319f4ae2e..7b73e6f6f1 100644 --- a/src/msw/choice.cpp +++ b/src/msw/choice.cpp @@ -26,8 +26,9 @@ #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" @@ -69,7 +70,7 @@ wxBEGIN_FLAGS( wxChoiceStyle ) 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 ) @@ -85,7 +86,7 @@ wxEND_HANDLERS_TABLE() 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 @@ -152,11 +153,26 @@ bool wxChoice::CreateAndInit(wxWindow *parent, } // 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, @@ -210,61 +226,56 @@ WXDWORD wxChoice::MSWGetStyle(long style, WXDWORD *exstyle) const 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() ) @@ -273,10 +284,8 @@ void wxChoice::Delete(unsigned int n) InvalidateBestSize(); } -void wxChoice::Clear() +void wxChoice::DoClear() { - Free(); - SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0); if ( !IsFrozen() ) @@ -285,18 +294,6 @@ void wxChoice::Clear() InvalidateBestSize(); } -void wxChoice::Free() -{ - if ( HasClientObjectData() ) - { - unsigned int count = GetCount(); - for ( unsigned int n = 0; n < count; n++ ) - { - delete GetClientObject(n); - } - } -} - // ---------------------------------------------------------------------------- // selection // ---------------------------------------------------------------------------- @@ -367,7 +364,7 @@ int wxChoice::FindString(const wxString& s, bool bCase) const 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; } @@ -381,25 +378,22 @@ void wxChoice::SetString(unsigned int n, const wxString& s) // 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(); } @@ -453,16 +447,6 @@ void* wxChoice::DoGetItemClientData(unsigned int n) const 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 // ---------------------------------------------------------------------------- @@ -506,6 +490,51 @@ void wxChoice::DoSetSize(int x, int y, { 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); @@ -568,26 +597,6 @@ void wxChoice::DoSetSize(int x, int y, } 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 } @@ -694,6 +703,13 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) // 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: @@ -723,10 +739,7 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) if ( n > -1 ) { event.SetString(GetStringSelection()); - if ( HasClientObjectData() ) - event.SetClientObject( GetClientObject(n) ); - else if ( HasClientUntypedData() ) - event.SetClientData( GetClientData(n) ); + InitCommandEventWithItems(event, n); } ProcessCommand(event);