X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6d14cac77d6a33162621dadb318b4548bc711bc0..b5435dccd098ae153c3b7b3b8fca8dd0d763986c:/src/msw/combobox.cpp?ds=sidebyside diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp index 3caa1b324d..e296bf6ca6 100644 --- a/src/msw/combobox.cpp +++ b/src/msw/combobox.cpp @@ -5,7 +5,7 @@ // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem +// Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -25,13 +25,16 @@ #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #if wxUSE_COMBOBOX #ifndef WX_PRECOMP -#include "wx/settings.h" + #include "wx/settings.h" + #include "wx/log.h" + // for wxEVT_COMMAND_TEXT_ENTER + #include "wx/textctrl.h" #endif #include "wx/combobox.h" @@ -40,7 +43,7 @@ #include "wx/msw/private.h" #if wxUSE_TOOLTIPS - #ifndef __GNUWIN32_OLD__ + #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__) #include #endif #include "wx/tooltip.h" @@ -86,20 +89,33 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd, switch ( message ) { - // forward some messages to the combobox + // 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); - wxCHECK_MSG( combo, 0, _T("should have combo as parent") ); - - if ( combo->MSWProcessEditMsg(message, wParam, lParam) ) + 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; + } } break; -#if 0 case WM_GETDLGCODE: { wxCHECK_MSG( win, 0, _T("should have a parent") ); @@ -111,16 +127,15 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd, } } break; -#endif // 0 // deal with tooltips here -#if wxUSE_TOOLTIPS +#if wxUSE_TOOLTIPS && defined(TTN_NEEDTEXT) case WM_NOTIFY: { wxCHECK_MSG( win, 0, _T("should have a parent") ); NMHDR* hdr = (NMHDR *)lParam; - if ( (int)hdr->code == TTN_NEEDTEXT ) + if ( hdr->code == TTN_NEEDTEXT ) { wxToolTip *tooltip = win->GetToolTip(); if ( tooltip ) @@ -140,29 +155,17 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd, return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam); } -WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, - WXWPARAM wParam, - WXLPARAM lParam) +WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor), + WXUINT WXUNUSED(message), + WXWPARAM WXUNUSED(wParam), + WXLPARAM WXUNUSED(lParam) + ) { -#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())); @@ -181,6 +184,17 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) switch ( msg ) { case WM_CHAR: + // for compatibility with wxTextCtrl, generate a special message + // when Enter is pressed + if ( wParam == VK_RETURN ) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); + InitCommandEvent(event); + event.SetString(GetValue()); + event.SetInt(GetSelection()); + ProcessCommand(event); + } + return HandleChar(wParam, lParam, TRUE /* isASCII */); case WM_KEYDOWN: @@ -188,6 +202,12 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) case WM_KEYUP: return HandleKeyUp(wParam, lParam); + + case WM_SETFOCUS: + return HandleSetFocus((WXHWND)wParam); + + case WM_KILLFOCUS: + return HandleKillFocus((WXHWND)wParam); } return FALSE; @@ -195,23 +215,51 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam) bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { + wxString value; + int sel = -1; switch ( param ) { case CBN_SELCHANGE: - if (GetSelection() > -1) + sel = GetSelection(); + if ( sel > -1 ) { + value = GetString(sel); + wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId()); - event.SetInt(GetSelection()); + event.SetInt(sel); event.SetEventObject(this); - event.SetString(GetStringSelection()); + event.SetString(value); ProcessCommand(event); } - break; + else + { + break; + } + + // fall through: for compability 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: { wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId()); - event.SetString(GetValue()); + + // 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 = GetValue(); + } + 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); + } + + event.SetString(value); event.SetEventObject(this); ProcessCommand(event); } @@ -250,6 +298,11 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id, const wxValidator& validator, const wxString& name) { + // 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; @@ -259,23 +312,27 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id, CBS_AUTOHSCROLL | CBS_NOINTEGRALHEIGHT /* | WS_CLIPSIBLINGS */; 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; if ( style & wxCB_SORT ) msStyle |= CBS_SORT; + if ( style & wxCLIP_SIBLINGS ) + msStyle |= WS_CLIPSIBLINGS; + + // and now create the MSW control if ( !MSWCreateControl(_T("COMBOBOX"), msStyle) ) return FALSE; - SetSize(pos.x, pos.y, size.x, size.y); - // 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++ ) { @@ -287,6 +344,10 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id, 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 @@ -300,64 +361,37 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id, ); } + // and finally, show the control + Show(TRUE); + return TRUE; } -// TODO: update and clear all this horrible mess (VZ) - void wxComboBox::SetValue(const wxString& value) { - // If newlines are denoted by just 10, must stick 13 in front. - int singletons = 0; - int len = value.Length(); - int i; - for (i = 0; i < len; i ++) - { - if ((i > 0) && (value[i] == 10) && (value[i-1] != 13)) - singletons ++; - } - if (singletons > 0) - { - wxChar *tmp = new wxChar[len + singletons + 1]; - int j = 0; - for (i = 0; i < len; i ++) - { - if ((i > 0) && (value[i] == 10) && (value[i-1] != 13)) - { - tmp[j] = 13; - j ++; - } - tmp[j] = value[i]; - j ++; - } - tmp[j] = 0; - SetWindowText(GetHwnd(), tmp); - delete[] tmp; - } - else - SetWindowText(GetHwnd(), value); + if ( HasFlag(wxCB_READONLY) ) + SetStringSelection(value); + else + SetWindowText(GetHwnd(), value.c_str()); } // Clipboard operations void wxComboBox::Copy() { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_COPY, 0, 0L); + SendMessage(GetHwnd(), WM_COPY, 0, 0L); } void wxComboBox::Cut() { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_CUT, 0, 0L); + SendMessage(GetHwnd(), WM_CUT, 0, 0L); } void wxComboBox::Paste() { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_PASTE, 0, 0L); + SendMessage(GetHwnd(), WM_PASTE, 0, 0L); } -void wxComboBox::SetEditable(bool editable) +void wxComboBox::SetEditable(bool WXUNUSED(editable)) { // Can't implement in MSW? // HWND hWnd = GetHwnd(); @@ -378,7 +412,7 @@ 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__ } @@ -417,39 +451,21 @@ long wxComboBox::GetLastPosition() const void wxComboBox::Replace(long from, long to, const wxString& value) { #if wxUSE_CLIPBOARD - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - - // Set selection and remove it -#ifdef __WIN32__ - SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar); -#else - SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); -#endif - SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); + Remove(from, to); // Now replace with 'value', by pasting. wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0); // Paste into edit control - SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); + SendMessage(GetHwnd(), WM_PASTE, (WPARAM)0, (LPARAM)0L); #endif } void wxComboBox::Remove(long from, long to) { - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - - // Cut all selected text -#ifdef __WIN32__ - SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar); -#else - SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); -#endif - SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); + // Set selection and remove it + SetSelection(from, to); + SendMessage(GetHwnd(), WM_CUT, (WPARAM)0, (LPARAM)0); } void wxComboBox::SetSelection(long from, long to) @@ -466,56 +482,16 @@ void wxComboBox::SetSelection(long from, long to) toChar = -1; } + if ( #ifdef __WIN32__ - SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar); -// SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); -#else - // WPARAM is 0: selection is scrolled into view - SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); + SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)) +#else // Win16 + SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar) #endif -} - -void wxComboBox::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; - - int cx, cy; - wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); - - // what should the height of the drop down list be? we choose 10 items by - // default and also 10 items max (if we always use n, the list will never - // have vertical scrollbar) - int n = GetCount(); - if ( !n || (n > 10) ) - n = 10; - - height = (n + 1)* EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); - - wxControl::DoMoveWindow(x, y, width, height); -} - -wxSize wxComboBox::DoGetBestSize() const -{ - // the choice calculates the horz size correctly, but not the vertical - // component: correct it - wxSize size = wxChoice::DoGetBestSize(); - - int cx, cy; - wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); - size.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); - - return size; + == CB_ERR ) + { + wxLogDebug(_T("CB_SETEDITSEL failed")); + } } #endif