X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/35821d8fe021a3aa3c59b50ad2c897616bf25da5..1d6560d796aefb5dbdf217109767b1054c68c291:/src/msw/combobox.cpp diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp index cb069d9cfd..73c6852660 100644 --- a/src/msw/combobox.cpp +++ b/src/msw/combobox.cpp @@ -17,7 +17,7 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "combobox.h" #endif @@ -53,7 +53,65 @@ // wxWin macros // ---------------------------------------------------------------------------- +#if wxUSE_EXTENDED_RTTI +WX_DEFINE_FLAGS( wxComboBoxStyle ) + +wxBEGIN_FLAGS( wxComboBoxStyle ) + // new style border flags, we put them first to + // use them for streaming out + wxFLAGS_MEMBER(wxBORDER_SIMPLE) + wxFLAGS_MEMBER(wxBORDER_SUNKEN) + wxFLAGS_MEMBER(wxBORDER_DOUBLE) + wxFLAGS_MEMBER(wxBORDER_RAISED) + wxFLAGS_MEMBER(wxBORDER_STATIC) + wxFLAGS_MEMBER(wxBORDER_NONE) + + // old style border flags + wxFLAGS_MEMBER(wxSIMPLE_BORDER) + wxFLAGS_MEMBER(wxSUNKEN_BORDER) + wxFLAGS_MEMBER(wxDOUBLE_BORDER) + wxFLAGS_MEMBER(wxRAISED_BORDER) + wxFLAGS_MEMBER(wxSTATIC_BORDER) + wxFLAGS_MEMBER(wxBORDER) + + // standard window styles + wxFLAGS_MEMBER(wxTAB_TRAVERSAL) + wxFLAGS_MEMBER(wxCLIP_CHILDREN) + wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW) + wxFLAGS_MEMBER(wxWANTS_CHARS) + wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE) + wxFLAGS_MEMBER(wxALWAYS_SHOW_SB ) + wxFLAGS_MEMBER(wxVSCROLL) + wxFLAGS_MEMBER(wxHSCROLL) + + wxFLAGS_MEMBER(wxCB_SIMPLE) + wxFLAGS_MEMBER(wxCB_SORT) + wxFLAGS_MEMBER(wxCB_READONLY) + wxFLAGS_MEMBER(wxCB_DROPDOWN) + +wxEND_FLAGS( wxComboBoxStyle ) + +IMPLEMENT_DYNAMIC_CLASS_XTI(wxComboBox, wxControl,"wx/combobox.h") + +wxBEGIN_PROPERTIES_TABLE(wxComboBox) + wxEVENT_PROPERTY( Select , wxEVT_COMMAND_COMBOBOX_SELECTED , wxCommandEvent ) + wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent ) + + // TODO DELEGATES + wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY( Value ,wxString, SetValue, GetValue, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY( Selection ,int, SetSelection, GetSelection, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY_FLAGS( WindowStyle , wxComboBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style +wxEND_PROPERTIES_TABLE() + +wxBEGIN_HANDLERS_TABLE(wxComboBox) +wxEND_HANDLERS_TABLE() + +wxCONSTRUCTOR_5( wxComboBox , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size ) +#else IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl) +#endif // ---------------------------------------------------------------------------- // function prototypes @@ -69,7 +127,7 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd, // --------------------------------------------------------------------------- // the pointer to standard radio button wnd proc -static WXFARPROC gs_wndprocEdit = (WXFARPROC)NULL; +static WNDPROC gs_wndprocEdit = (WNDPROC)NULL; // ============================================================================ // implementation @@ -155,11 +213,12 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd, return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam); } -WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor), - WXUINT WXUNUSED(message), - WXWPARAM WXUNUSED(wParam), - WXLPARAM WXUNUSED(lParam) - ) +WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, + WXHWND WXUNUSED(pWnd), + WXUINT WXUNUSED(nCtlColor), + WXUINT WXUNUSED(message), + WXWPARAM WXUNUSED(wParam), + WXLPARAM WXUNUSED(lParam)) { HDC hdc = (HDC)pDC; wxColour colBack = GetBackgroundColour(); @@ -176,9 +235,39 @@ WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSE } // ---------------------------------------------------------------------------- -// wxComboBox +// wxComboBox callbacks // ---------------------------------------------------------------------------- +WXLRESULT wxComboBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + // handle WM_CTLCOLOR messages from our EDIT control to be able to set its + // colour correctly (to be the same as our own one) + switch ( nMsg ) + { + // we have to handle both: one for the normal case and the other for + // wxCB_READONLY + case WM_CTLCOLOREDIT: + case WM_CTLCOLORSTATIC: + WXWORD nCtlColor; + WXHDC hdc; + WXHWND hwnd; + UnpackCtlColor(wParam, lParam, &nCtlColor, &hdc, &hwnd); + + return (WXLRESULT)OnCtlColor(hdc, hwnd, nCtlColor, nMsg, wParam, lParam); + + case CB_SETCURSEL: + // Selection was set with SetSelection. Update the value too. + if ((int)wParam > GetCount()) + m_value = wxEmptyString; + else + m_value = GetString(wParam); + break; + + } + + return wxChoice::MSWWindowProc(nMsg, wParam, lParam); +} + bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) { switch ( msg ) @@ -195,7 +284,7 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) ProcessCommand(event); } - return HandleChar(wParam, lParam, TRUE /* isASCII */); + return HandleChar(wParam, lParam, true /* isASCII */); case WM_KEYDOWN: return HandleKeyDown(wParam, lParam); @@ -210,7 +299,7 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) return HandleKillFocus((WXHWND)wParam); } - return FALSE; + return false; } bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) @@ -221,18 +310,30 @@ bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { case CBN_SELCHANGE: sel = GetSelection(); - if ( sel > -1 ) + + // somehow we get 2 CBN_SELCHANGE events with the same index when + // the user selects an item in the combobox -- ignore duplicates + if ( sel > -1 && sel != m_selectionOld ) { - value = GetString(sel); + m_selectionOld = sel; + + // GetValue() would still return the old value from here but + // according to the docs we should return the new value if the + // user calls it in his event handler, so update internal + // m_value + m_value = GetString(sel); wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId()); event.SetInt(sel); event.SetEventObject(this); - event.SetString(value); + event.SetString(m_value); ProcessCommand(event); } - else + else // no valid selection { + m_selectionOld = sel; + + // hence no EVT_TEXT neither break; } @@ -249,17 +350,21 @@ bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) // want the new one) if ( sel == -1 ) { - value = GetValue(); + m_value = wxGetWindowText(GetHwnd()); } else // we're synthesizing text updated event from sel change { - // we need to do this because the user code expects - // wxComboBox::GetValue() to return the new value from - // "text updated" handler but it hadn't been updated yet - SetValue(value); + // We need to retrieve the current selection because the + // user may have changed it in the previous handler (for + // CBN_SELCHANGE above). + sel = GetSelection(); + if ( sel > -1 ) + { + m_value = GetString(sel); + } } - event.SetString(value); + event.SetString(m_value); event.SetEventObject(this); ProcessCommand(event); } @@ -267,8 +372,8 @@ bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) } // there is no return value for the CBN_ notifications, so always return - // FALSE from here to pass the message to DefWindowProc() - return FALSE; + // false from here to pass the message to DefWindowProc() + return false; } WXHWND wxComboBox::GetEditHWND() const @@ -289,6 +394,10 @@ WXHWND wxComboBox::GetEditHWND() const return (WXHWND)hwndEdit; } +// ---------------------------------------------------------------------------- +// wxComboBox creation +// ---------------------------------------------------------------------------- + bool wxComboBox::Create(wxWindow *parent, wxWindowID id, const wxString& value, const wxPoint& pos, @@ -301,76 +410,88 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id, // 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; - - // first create wxWin object - if ( !CreateControl(parent, id, pos, size, style, validator, name) ) - return FALSE; - - // get the right style - long msStyle = WS_TABSTOP | WS_VSCROLL | WS_HSCROLL | - CBS_AUTOHSCROLL | CBS_NOINTEGRALHEIGHT /* | WS_CLIPSIBLINGS */; - if ( style & wxCB_READONLY ) - msStyle |= CBS_DROPDOWNLIST; - else if ( style & wxCB_SIMPLE ) - msStyle |= CBS_SIMPLE; // A list (shown always) and edit control - else - msStyle |= CBS_DROPDOWN; + m_isShown = false; - if ( style & wxCB_SORT ) - msStyle |= CBS_SORT; + if ( !CreateAndInit(parent, id, pos, size, n, choices, style, + validator, name) ) + return false; - if ( style & wxCLIP_SIBLINGS ) - msStyle |= WS_CLIPSIBLINGS; - - - // and now create the MSW control - if ( !MSWCreateControl(_T("COMBOBOX"), msStyle) ) - return FALSE; - - // A choice/combobox normally has a white background (or other, depending - // on global settings) rather than inheriting the parent's background colour. - SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); - - for ( int i = 0; i < n; i++ ) - { - Append(choices[i]); - } - - if ( !value.IsEmpty() ) - { + // 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); - } - - // do this after appending the values to the combobox so that autosizing - // works correctly - SetSize(pos.x, pos.y, size.x, size.y); // 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 = (WXFARPROC)::SetWindowLong - ( - (HWND)GetEditHWND(), - GWL_WNDPROC, - (LPARAM)wxComboEditWndProc - ); + gs_wndprocEdit = wxSetWindowProc((HWND)GetEditHWND(), + wxComboEditWndProc); } // and finally, show the control - Show(TRUE); + Show(true); + + return true; +} + +bool wxComboBox::Create(wxWindow *parent, wxWindowID id, + const wxString& value, + const wxPoint& pos, + const wxSize& size, + const wxArrayString& choices, + long style, + const wxValidator& validator, + const wxString& name) +{ + wxCArrayString chs(choices); + return Create(parent, id, value, pos, size, chs.GetCount(), + chs.GetStrings(), style, validator, name); +} + +WXDWORD wxComboBox::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + // we never have an external border + WXDWORD msStyle = wxChoice::MSWGetStyle + ( + (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle + ); + + // remove the style always added by wxChoice + msStyle &= ~CBS_DROPDOWNLIST; - return TRUE; + if ( style & wxCB_READONLY ) + msStyle |= CBS_DROPDOWNLIST; +#ifndef __WXWINCE__ + else if ( style & wxCB_SIMPLE ) + msStyle |= CBS_SIMPLE; // A list (shown always) and edit control +#endif + else + msStyle |= CBS_DROPDOWN; + + // there is no reason to not always use CBS_AUTOHSCROLL, so do use it + msStyle |= CBS_AUTOHSCROLL; + + // NB: we used to also add CBS_NOINTEGRALHEIGHT here but why? + + return msStyle; } +// ---------------------------------------------------------------------------- +// wxComboBox text control-like methods +// ---------------------------------------------------------------------------- + void wxComboBox::SetValue(const wxString& value) { if ( HasFlag(wxCB_READONLY) ) SetStringSelection(value); else SetWindowText(GetHwnd(), value.c_str()); + + m_value = value; + m_selectionOld = GetSelection(); } // Clipboard operations @@ -410,7 +531,7 @@ void wxComboBox::SetInsertionPoint(long pos) // 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)_T("")); + SendMessage(hEditWnd, EM_REPLACESEL, 0, (LPARAM) wxEmptyString); } #endif // __WIN32__ } @@ -472,7 +593,7 @@ void wxComboBox::SetSelection(long from, long to) long fromChar = from; long toChar = to; // if from and to are both -1, it means - // (in wxWindows) that all text should be selected. + // (in wxWidgets) that all text should be selected. // This translates into Windows convention if ((from == -1) && (to == -1)) { @@ -480,18 +601,11 @@ void wxComboBox::SetSelection(long from, long to) toChar = -1; } - if ( -#ifdef __WIN32__ - SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)) -#else // Win16 - SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar) -#endif - == CB_ERR ) + if ( SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)) == CB_ERR ) { wxLogDebug(_T("CB_SETEDITSEL failed")); } } -#endif - // wxUSE_COMBOBOX +#endif // wxUSE_COMBOBOX