X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7d8268a1d64de58aab194e4d8ae800c755990aad..12bb29f5432174ecbd65549bda832d70d34a98ae:/src/msw/combobox.cpp?ds=sidebyside diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp index c8ccafc1a5..d98241f0c4 100644 --- a/src/msw/combobox.cpp +++ b/src/msw/combobox.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: msw/combobox.cpp +// Name: src/msw/combobox.cpp // Purpose: wxComboBox class // Author: Julian Smart // Modified by: @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma implementation "combobox.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -30,23 +26,27 @@ #if wxUSE_COMBOBOX +#include "wx/combobox.h" + #ifndef WX_PRECOMP + #include "wx/msw/wrapcctl.h" // include "properly" #include "wx/settings.h" #include "wx/log.h" - // for wxEVT_COMMAND_TEXT_ENTER + // for wxEVT_TEXT_ENTER #include "wx/textctrl.h" + #include "wx/app.h" + #include "wx/brush.h" #endif -#include "wx/app.h" -#include "wx/combobox.h" -#include "wx/brush.h" #include "wx/clipbrd.h" +#include "wx/wupdlock.h" #include "wx/msw/private.h" +#if wxUSE_UXTHEME + #include "wx/msw/uxtheme.h" +#endif + #if wxUSE_TOOLTIPS - #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__) - #include - #endif #include "wx/tooltip.h" #endif // wxUSE_TOOLTIPS @@ -54,69 +54,6 @@ // 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 - BEGIN_EVENT_TABLE(wxComboBox, wxControl) EVT_MENU(wxID_CUT, wxComboBox::OnCut) EVT_MENU(wxID_COPY, wxComboBox::OnCopy) @@ -155,6 +92,36 @@ static WNDPROC gs_wndprocEdit = (WNDPROC)NULL; // implementation // ============================================================================ +namespace +{ + +// Check if the given message should be forwarded from the edit control which +// is part of the combobox to wxComboBox itself. All messages generating the +// events that the code using wxComboBox could be interested in must be +// forwarded. +bool ShouldForwardFromEditToCombo(UINT message) +{ + switch ( message ) + { + case WM_KEYUP: + case WM_KEYDOWN: + case WM_CHAR: + case WM_SYSCHAR: + case WM_SYSKEYDOWN: + case WM_SYSKEYUP: + case WM_SETFOCUS: + case WM_KILLFOCUS: + case WM_CUT: + case WM_COPY: + case WM_PASTE: + return true; + } + + return false; +} + +} // anonymous namespace + // ---------------------------------------------------------------------------- // wnd proc for subclassed edit control // ---------------------------------------------------------------------------- @@ -167,69 +134,34 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd, HWND hwndCombo = ::GetParent(hWnd); wxWindow *win = wxFindWinFromHandle((WXHWND)hwndCombo); - switch ( message ) + if ( ShouldForwardFromEditToCombo(message) ) { - // forward some messages to the combobox to generate the appropriate - // wxEvents from them - case WM_KEYUP: - case WM_KEYDOWN: - case WM_CHAR: - case WM_SETFOCUS: - case WM_KILLFOCUS: + wxComboBox *combo = wxDynamicCast(win, wxComboBox); + if ( !combo ) + { + // we can get WM_KILLFOCUS while our parent is already half + // destroyed and hence doesn't look like a combobx any + // longer, check for it to avoid bogus assert failures + if ( !win->IsBeingDeleted() ) { - wxComboBox *combo = wxDynamicCast(win, wxComboBox); - if ( !combo ) - { - // we can get WM_KILLFOCUS while our parent is already half - // destroyed and hence doesn't look like a combobx any - // longer, check for it to avoid bogus assert failures - if ( !win->IsBeingDeleted() ) - { - wxFAIL_MSG( _T("should have combo as parent") ); - } - } - else if ( combo->MSWProcessEditMsg(message, wParam, lParam) ) - { - // handled by parent - return 0; - } + wxFAIL_MSG( wxT("should have combo as parent") ); } - break; - - case WM_GETDLGCODE: - { - wxCHECK_MSG( win, 0, _T("should have a parent") ); - - if ( win->GetWindowStyle() & wxPROCESS_ENTER ) - { - // need to return a custom dlg code or we'll never get it - return DLGC_WANTMESSAGE; - } - } - break; - - // deal with tooltips here -#if wxUSE_TOOLTIPS && defined(TTN_NEEDTEXT) - case WM_NOTIFY: - { - wxCHECK_MSG( win, 0, _T("should have a parent") ); + } + else if ( combo->MSWProcessEditMsg(message, wParam, lParam) ) + { + // handled by parent + return 0; + } + } + else if ( message == WM_GETDLGCODE ) + { + wxCHECK_MSG( win, 0, wxT("should have a parent") ); - NMHDR* hdr = (NMHDR *)lParam; - if ( hdr->code == TTN_NEEDTEXT ) - { - wxToolTip *tooltip = win->GetToolTip(); - if ( tooltip ) - { - TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam; - ttt->lpszText = (wxChar *)tooltip->GetTip().c_str(); - } - - // processed - return 0; - } - } - break; -#endif // wxUSE_TOOLTIPS + if ( win->GetWindowStyle() & wxTE_PROCESS_ENTER ) + { + // need to return a custom dlg code or we'll never get it + return DLGC_WANTMESSAGE; + } } return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam); @@ -241,18 +173,50 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd, 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) + // TODO: 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 ) { - case CB_SETCURSEL: - // Selection was set with SetSelection. Update the value too. - if ((int)wParam > GetCount()) - m_value = wxEmptyString; - else - m_value = GetString(wParam); - m_selectionOld = -1; - break; + case WM_SIZE: + // wxStaticBox can generate this message, when modifying the control's style. + // This causes the content of the combobox to be selected, for some reason. + case WM_STYLECHANGED: + { + // combobox selection sometimes spontaneously changes when its + // size changes, restore it to the old value if necessary + if ( !GetEditHWNDIfAvailable() ) + break; + + long fromOld, toOld; + GetSelection(&fromOld, &toOld); + + // if an editable combobox has a not empty text not from the + // list, it tries to autocomplete it from the list when it is + // resized, but we don't want this to happen as it doesn't seem + // to make any sense, so we forcefully restore the old text + wxString textOld; + if ( !HasFlag(wxCB_READONLY) && GetCurrentSelection() == -1 ) + textOld = GetValue(); + + // eliminate flickering during following hacks + wxWindowUpdateLocker lock(this); + + WXLRESULT result = wxChoice::MSWWindowProc(nMsg, wParam, lParam); + + if ( !textOld.empty() && GetValue() != textOld ) + SetLabel(textOld); + + long fromNew, toNew; + GetSelection(&fromNew, &toNew); + + if ( fromOld != fromNew || toOld != toNew ) + { + SetSelection(fromOld, toOld); + } + + return result; + } } return wxChoice::MSWWindowProc(nMsg, wParam, lParam); @@ -267,10 +231,16 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) // when Enter is pressed if ( wParam == VK_RETURN ) { - wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); - InitCommandEvent(event); + if (SendMessage(GetHwnd(), CB_GETDROPPEDSTATE, 0, 0)) + return false; + + wxCommandEvent event(wxEVT_TEXT_ENTER, m_windowId); + + const int sel = GetSelection(); + event.SetInt(sel); event.SetString(GetValue()); - event.SetInt(GetSelection()); + InitCommandEventWithItems(event, sel); + if ( ProcessCommand(event) ) { // don't let the event through to the native control @@ -279,116 +249,171 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) return true; } } + // fall through, WM_CHAR is one of the message we should forward. - return HandleChar(wParam, lParam, true /* isASCII */); - - case WM_KEYDOWN: - return HandleKeyDown(wParam, lParam); - - case WM_KEYUP: - return HandleKeyUp(wParam, lParam); - - case WM_SETFOCUS: - return HandleSetFocus((WXHWND)wParam); - - case WM_KILLFOCUS: - return HandleKillFocus((WXHWND)wParam); + default: + if ( ShouldForwardFromEditToCombo(msg) ) + { + // For all the messages forward from the edit control the + // result is not used. + WXLRESULT result; + return MSWHandleMessage(&result, msg, wParam, lParam); + } } return false; } -bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) +bool wxComboBox::MSWCommand(WXUINT param, WXWORD id) { - wxString value; int sel = -1; + wxString value; + switch ( param ) { - case CBN_SELCHANGE: - sel = GetSelection(); - - // 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 ) + case CBN_DROPDOWN: + // remember the last selection, just as wxChoice does + m_lastAcceptedSelection = GetCurrentSelection(); { - 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); + wxCommandEvent event(wxEVT_COMBOBOX_DROPDOWN, GetId()); event.SetEventObject(this); - event.SetString(m_value); ProcessCommand(event); } - else // no valid selection - { - m_selectionOld = sel; + break; - // hence no EVT_TEXT neither - break; + case CBN_CLOSEUP: + // Do the same thing as in wxChoice but using different event type. + if ( m_pendingSelection != wxID_NONE ) + { + SendSelectionChangedEvent(wxEVT_COMBOBOX); + m_pendingSelection = wxID_NONE; } + { + wxCommandEvent event(wxEVT_COMBOBOX_CLOSEUP, GetId()); + event.SetEventObject(this); + ProcessCommand(event); + } + break; + + case CBN_SELENDOK: +#ifndef __SMARTPHONE__ + // we need to reset this to prevent the selection from being undone + // by wxChoice, see wxChoice::MSWCommand() and comments there + m_lastAcceptedSelection = wxID_NONE; +#endif - // fall through: for compability with wxGTK, also send the text + // set these variables so that they could be also fixed in + // CBN_EDITCHANGE below + sel = GetSelection(); + value = GetStringSelection(); + + // this string is going to become the new combobox value soon but + // we need it to be done right now, otherwise the event handler + // could get a wrong value when it calls our GetValue() + ::SetWindowText(GetHwnd(), value.t_str()); + + SendSelectionChangedEvent(wxEVT_COMBOBOX); + + // fall through: for compatibility with wxGTK, also send the text // update event when the selection changes (this also seems more // logical as the text does change) case CBN_EDITCHANGE: + if ( m_allowTextEvents ) { - wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId()); + wxCommandEvent event(wxEVT_TEXT, GetId()); - // if sel != -1, value was initialized above (and we can't use - // GetValue() here as it would return the old selection and we - // want the new one) + // if sel != -1, value was already initialized above if ( sel == -1 ) { - m_value = wxGetWindowText(GetHwnd()); - m_selectionOld = -1; - } - else // we're synthesizing text updated event from sel change - { - // 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); - } + value = wxGetWindowText(GetHwnd()); } - event.SetString(m_value); - event.SetEventObject(this); + event.SetString(value); + InitCommandEventWithItems(event, sel); + ProcessCommand(event); } break; + + default: + return wxChoice::MSWCommand(param, id); } - // there is no return value for the CBN_ notifications, so always return - // false from here to pass the message to DefWindowProc() - return false; + // skip wxChoice version as it would generate its own events for + // CBN_SELENDOK and also interfere with our handling of CBN_DROPDOWN + return true; } -WXHWND wxComboBox::GetEditHWND() const +bool wxComboBox::MSWShouldPreProcessMessage(WXMSG *pMsg) { - // this function should not be called for wxCB_READONLY controls, it is - // the callers responsability to check this - wxASSERT_MSG( !(GetWindowStyle() & wxCB_READONLY), - _T("read-only combobox doesn't have any edit control") ); - - POINT pt; - pt.x = pt.y = 4; - HWND hwndEdit = ::ChildWindowFromPoint(GetHwnd(), pt); - if ( !hwndEdit || hwndEdit == GetHwnd() ) + // prevent command accelerators from stealing editing + // hotkeys when we have the focus + if (wxIsCtrlDown()) { - wxFAIL_MSG(_T("not read only combobox without edit control?")); + WPARAM vkey = pMsg->wParam; + + switch (vkey) + { + case 'C': + case 'V': + case 'X': + case VK_INSERT: + case VK_DELETE: + case VK_HOME: + case VK_END: + return false; + } } - return (WXHWND)hwndEdit; + return wxChoice::MSWShouldPreProcessMessage(pMsg); +} + +WXHWND wxComboBox::GetEditHWNDIfAvailable() const +{ + // FIXME-VC6: Only VC6 needs this guard, see WINVER definition in + // include/wx/msw/wrapwin.h +#if defined(WINVER) && WINVER >= 0x0500 + WinStruct info; + if ( MSWGetComboBoxInfo(&info) ) + return info.hwndItem; +#endif // WINVER >= 0x0500 + + if (HasFlag(wxCB_SIMPLE)) + { + POINT pt; + pt.x = pt.y = 4; + return (WXHWND) ::ChildWindowFromPoint(GetHwnd(), pt); + } + + // notice that a slightly safer alternative could be to use FindWindowEx() + // but it's not available under WinCE so just take the first child for now + // to keep one version of the code for all platforms and fix it later if + // problems are discovered + + // we assume that the only child of the combobox is the edit window + return (WXHWND)::GetWindow(GetHwnd(), GW_CHILD); +} + +WXHWND wxComboBox::GetEditHWND() const +{ + // this function should not be called for wxCB_READONLY controls, it is + // the callers responsibility to check this + wxASSERT_MSG( !HasFlag(wxCB_READONLY), + wxT("read-only combobox doesn't have any edit control") ); + + WXHWND hWndEdit = GetEditHWNDIfAvailable(); + wxASSERT_MSG( hWndEdit, wxT("combobox without edit control?") ); + + return hWndEdit; +} + +wxWindow *wxComboBox::GetEditableWindow() +{ + wxASSERT_MSG( !HasFlag(wxCB_READONLY), + wxT("read-only combobox doesn't have any edit control") ); + + return this; } // ---------------------------------------------------------------------------- @@ -424,8 +449,7 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id, // edit control, we must subclass it as well if ( !(style & wxCB_READONLY) ) { - gs_wndprocEdit = wxSetWindowProc((HWND)GetEditHWND(), - wxComboEditWndProc); + gs_wndprocEdit = wxSetWindowProc((HWND)GetEditHWND(), wxComboEditWndProc); } // and finally, show the control @@ -456,6 +480,11 @@ WXDWORD wxComboBox::MSWGetStyle(long style, WXDWORD *exstyle) const (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle ); + // usually WS_TABSTOP is added by wxControl::MSWGetStyle() but as we're + // created hidden (see Create() above), it is not done for us but we still + // want to have this style + msStyle |= WS_TABSTOP; + // remove the style always added by wxChoice msStyle &= ~CBS_DROPDOWNLIST; @@ -480,224 +509,50 @@ WXDWORD wxComboBox::MSWGetStyle(long style, WXDWORD *exstyle) const // wxComboBox text control-like methods // ---------------------------------------------------------------------------- +wxString wxComboBox::GetValue() const +{ + return HasFlag(wxCB_READONLY) ? GetStringSelection() + : wxTextEntry::GetValue(); +} + void wxComboBox::SetValue(const wxString& value) { if ( HasFlag(wxCB_READONLY) ) SetStringSelection(value); else - SetWindowText(GetHwnd(), value.c_str()); - - m_value = value; - m_selectionOld = GetSelection(); + wxTextEntry::SetValue(value); } -// Clipboard operations -void wxComboBox::Copy() +void wxComboBox::Clear() { - SendMessage(GetHwnd(), WM_COPY, 0, 0L); + wxChoice::Clear(); + if ( !HasFlag(wxCB_READONLY) ) + wxTextEntry::Clear(); } -void wxComboBox::Cut() +bool wxComboBox::ContainsHWND(WXHWND hWnd) const { - SendMessage(GetHwnd(), WM_CUT, 0, 0L); + return hWnd == GetEditHWNDIfAvailable(); } -void wxComboBox::Paste() +void wxComboBox::GetSelection(long *from, long *to) const { - SendMessage(GetHwnd(), WM_PASTE, 0, 0L); -} - -void wxComboBox::Undo() -{ - if (CanUndo()) + if ( !HasFlag(wxCB_READONLY) ) { - HWND hEditWnd = (HWND) GetEditHWND() ; - if ( hEditWnd ) - ::SendMessage(hEditWnd, EM_UNDO, 0, 0); + wxTextEntry::GetSelection(from, to); } -} - -void wxComboBox::Redo() -{ - if (CanUndo()) + else // text selection doesn't make sense for read only comboboxes { - // Same as Undo, since Undo undoes the undo, i.e. a redo. - HWND hEditWnd = (HWND) GetEditHWND() ; - if ( hEditWnd ) - ::SendMessage(hEditWnd, EM_UNDO, 0, 0); + if ( from ) + *from = -1; + if ( to ) + *to = -1; } } -void wxComboBox::SelectAll() -{ - SetSelection(0, GetLastPosition()); -} - -bool wxComboBox::CanUndo() const -{ - HWND hEditWnd = (HWND) GetEditHWND() ; - if ( hEditWnd ) - return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0; - else - return false; -} - -bool wxComboBox::CanRedo() const -{ - HWND hEditWnd = (HWND) GetEditHWND() ; - if ( hEditWnd ) - return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0; - else - return false; -} - -bool wxComboBox::HasSelection() const -{ - long from, to; - GetSelection(&from, &to); - return from != to; -} - -bool wxComboBox::CanCopy() const -{ - // Can copy if there's a selection - return HasSelection(); -} - -bool wxComboBox::CanCut() const -{ - return CanCopy() && IsEditable(); -} - -bool wxComboBox::CanPaste() const -{ - if ( !IsEditable() ) - return false; - - // Standard edit control: check for straight text on clipboard - if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) - return false; - - bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0; - ::CloseClipboard(); - - return isTextAvailable; -} - bool wxComboBox::IsEditable() const { - return !HasFlag(wxCB_READONLY); -} - -void wxComboBox::SetEditable(bool WXUNUSED(editable)) -{ - // Can't implement in MSW? -// HWND hWnd = GetHwnd(); -// SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); -} - -void wxComboBox::SetInsertionPoint(long pos) -{ - if ( GetWindowStyle() & wxCB_READONLY ) - return; - -#ifdef __WIN32__ - HWND hWnd = GetHwnd(); - ::SendMessage(hWnd, CB_SETEDITSEL, 0, MAKELPARAM(pos, pos)); - HWND hEditWnd = (HWND) GetEditHWND() ; - if ( hEditWnd ) - { - // 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) wxEmptyString); - } -#endif // __WIN32__ -} - -void wxComboBox::SetInsertionPointEnd() -{ - // setting insertion point doesn't make sense for read only comboboxes - if ( !(GetWindowStyle() & wxCB_READONLY) ) - { - wxTextPos pos = GetLastPosition(); - SetInsertionPoint(pos); - } -} - -long wxComboBox::GetInsertionPoint() const -{ -#ifdef __WIN32__ - DWORD Pos=(DWORD)SendMessage(GetHwnd(), CB_GETEDITSEL, 0, 0L); - return Pos&0xFFFF; -#else - return 0; -#endif -} - -wxTextPos wxComboBox::GetLastPosition() const -{ - HWND hEditWnd = (HWND) GetEditHWND(); - - // Get number of characters in the last (only) line. We'll add this to the character - // index for the last line, 1st position. - wxTextPos lineLength = (wxTextPos)SendMessage(hEditWnd, EM_LINELENGTH, (WPARAM) 0, (LPARAM)0L); - - return lineLength; -} - -void wxComboBox::Replace(long from, long to, const wxString& value) -{ -#if wxUSE_CLIPBOARD - Remove(from, to); - - // Now replace with 'value', by pasting. - wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0); - - // Paste into edit control - SendMessage(GetHwnd(), WM_PASTE, (WPARAM)0, (LPARAM)0L); -#endif -} - -void wxComboBox::Remove(long from, long to) -{ - // Set selection and remove it - SetSelection(from, to); - SendMessage(GetHwnd(), WM_CUT, (WPARAM)0, (LPARAM)0); -} - -void wxComboBox::SetSelection(long from, long to) -{ - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - // if from and to are both -1, it means - // (in wxWidgets) that all text should be selected. - // This translates into Windows convention - if ((from == -1) && (to == -1)) - { - fromChar = 0; - toChar = -1; - } - - if ( SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)) == CB_ERR ) - { - wxLogDebug(_T("CB_SETEDITSEL failed")); - } -} - -void wxComboBox::GetSelection(long* from, long* to) const -{ - DWORD dwStart, dwEnd; - ::SendMessage(GetHwnd(), CB_GETEDITSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd); - - *from = dwStart; - *to = dwEnd; -} - -int wxComboBox::GetSelection() const -{ - return wxChoice::GetSelection(); + return !HasFlag(wxCB_READONLY) && wxTextEntry::IsEditable(); } // ---------------------------------------------------------------------------- @@ -731,15 +586,12 @@ void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event)) void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event)) { - long from, to; - GetSelection(& from, & to); - if (from != -1 && to != -1) - Remove(from, to); + RemoveSelection(); } void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event)) { - SetSelection(-1, -1); + SelectAll(); } void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event) @@ -759,23 +611,68 @@ void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event) void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event) { - event.Enable( CanUndo() ); + event.Enable( IsEditable() && CanUndo() ); } void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event) { - event.Enable( CanRedo() ); + event.Enable( IsEditable() && CanRedo() ); } void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event) { - event.Enable(HasSelection() && IsEditable()) ; + event.Enable(IsEditable() && HasSelection()); } void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event) { - event.Enable(GetLastPosition() > 0); + event.Enable(IsEditable() && !wxTextEntry::IsEmpty()); } -#endif // wxUSE_COMBOBOX +#if wxUSE_TOOLTIPS + +void wxComboBox::DoSetToolTip(wxToolTip *tip) +{ + wxChoice::DoSetToolTip(tip); + + if ( tip && !HasFlag(wxCB_READONLY) ) + tip->AddOtherWindow(GetEditHWND()); +} + +#endif // wxUSE_TOOLTIPS + +#if wxUSE_UXTHEME +bool wxComboBox::SetHint(const wxString& hintOrig) +{ + wxString hint(hintOrig); + if ( wxUxThemeEngine::GetIfActive() ) + { + // under XP (but not Vista) there is a bug in cue banners + // implementation for combobox edit control: the first character is + // partially chopped off, so prepend a space to make it fully visible + hint.insert(0, " "); + } + + return wxTextEntry::SetHint(hint); +} + +#endif // wxUSE_UXTHEME + +wxSize wxComboBox::DoGetSizeFromTextSize(int xlen, int ylen) const +{ + wxSize tsize( wxChoice::DoGetSizeFromTextSize(xlen, ylen) ); + + if ( !HasFlag(wxCB_READONLY) ) + { + // Add the margins we have previously set + wxPoint marg( GetMargins() ); + marg.x = wxMax(0, marg.x); + marg.y = wxMax(0, marg.y); + tsize.IncBy( marg ); + } + + return tsize; +} + +#endif // wxUSE_COMBOBOX