X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/184144794d383a1ddd6167443f6c22a3281aa96c..cf31a1d7b60feddf23cc30259c6d909d4736ca56:/src/msw/textctrl.cpp diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index 7d13ae10f4..c1511e337f 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -91,6 +91,20 @@ } ENLINK; #endif // ENLINK +#ifndef SF_UNICODE + #define SF_UNICODE 0x0010 +#endif + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb); + +#endif // wxUSE_RICHEDIT + // ---------------------------------------------------------------------------- // private classes // ---------------------------------------------------------------------------- @@ -161,10 +175,10 @@ END_EVENT_TABLE() // creation // ---------------------------------------------------------------------------- -wxTextCtrl::wxTextCtrl() +void wxTextCtrl::Init() { #if wxUSE_RICHEDIT - m_isRich = FALSE; + m_verRichEdit = 0; #endif } @@ -258,22 +272,12 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, } } - if ( s_errorGiven ) - { - m_isRich = FALSE; - } - else + if ( !s_errorGiven ) { msStyle |= ES_AUTOVSCROLL; - // Experimental: this seems to help with the scroll problem. See messages from Jekabs Andrushaitis - // wx-dev list, entitled "[wx-dev] wxMSW-EVT_KEY_DOWN and wxMSW-wxTextCtrl" and "[wx-dev] TextCtrl (RichEdit)" - // Unfortunately, showing the selection in blue when the control doesn't have - // the focus is non-standard behaviour, and we need to find another workaround. - //msStyle |= ES_NOHIDESEL ; - m_isRich = TRUE; - - int ver = wxRichEditModule::GetLoadedVersion(); - if ( ver == 1 ) + + m_verRichEdit = wxRichEditModule::GetLoadedVersion(); + if ( m_verRichEdit == 1 ) { windowClass = wxT("RICHEDIT"); } @@ -281,7 +285,7 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, { #ifndef RICHEDIT_CLASS wxString RICHEDIT_CLASS; - RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), ver); + RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), m_verRichEdit); #if wxUSE_UNICODE RICHEDIT_CLASS += _T('W'); #else // ANSI @@ -293,8 +297,6 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, } } } - else - m_isRich = FALSE; #endif // wxUSE_RICHEDIT // we need to turn '\n's into "\r\n"s for the multiline controls @@ -314,7 +316,7 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); #if wxUSE_RICHEDIT - if (m_isRich) + if ( IsRich() ) { // have to enable events manually LPARAM mask = ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE; @@ -336,31 +338,39 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, // Make sure the window style (etc.) reflects the HWND style (roughly) void wxTextCtrl::AdoptAttributesFromHWND() { - wxWindow::AdoptAttributesFromHWND(); + wxWindow::AdoptAttributesFromHWND(); - HWND hWnd = GetHwnd(); - long style = GetWindowLong(hWnd, GWL_STYLE); + HWND hWnd = GetHwnd(); + long style = ::GetWindowLong(hWnd, GWL_STYLE); - // retrieve the style to see whether this is an edit or richedit ctrl + // retrieve the style to see whether this is an edit or richedit ctrl #if wxUSE_RICHEDIT - wxChar buf[256]; + wxString classname = wxGetWindowClass(GetHWND()); - GetClassName(hWnd, buf, WXSIZEOF(buf)); + if ( classname.IsSameAs(_T("EDIT"), FALSE /* no case */) ) + { + m_verRichEdit = 0; + } + else // rich edit? + { + wxChar c; + if ( wxSscanf(classname, _T("RichEdit%d0%c"), &m_verRichEdit, &c) != 2 ) + { + wxLogDebug(_T("Unknown edit control '%s'."), classname.c_str()); - if ( wxStricmp(buf, wxT("EDIT")) == 0 ) - m_isRich = FALSE; - else - m_isRich = TRUE; + m_verRichEdit = 0; + } + } #endif // wxUSE_RICHEDIT - if (style & ES_MULTILINE) - m_windowStyle |= wxTE_MULTILINE; - if (style & ES_PASSWORD) - m_windowStyle |= wxTE_PASSWORD; - if (style & ES_READONLY) - m_windowStyle |= wxTE_READONLY; - if (style & ES_WANTRETURN) - m_windowStyle |= wxTE_PROCESS_ENTER; + if (style & ES_MULTILINE) + m_windowStyle |= wxTE_MULTILINE; + if (style & ES_PASSWORD) + m_windowStyle |= wxTE_PASSWORD; + if (style & ES_READONLY) + m_windowStyle |= wxTE_READONLY; + if (style & ES_WANTRETURN) + m_windowStyle |= wxTE_PROCESS_ENTER; } // ---------------------------------------------------------------------------- @@ -372,7 +382,7 @@ wxString wxTextCtrl::GetValue() const // we can't use wxGetWindowText() (i.e. WM_GETTEXT internally) for // retrieving more than 64Kb under Win9x #if wxUSE_RICHEDIT - if ( m_isRich ) + if ( IsRich() ) { wxString str; @@ -422,38 +432,148 @@ void wxTextCtrl::SetValue(const wxString& value) // edit controls mostly) if ( (value.length() > 0x400) || (value != GetValue()) ) { - wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + // it is simpler to do this but it could be more efficient to reproduce + // WriteText() logic here + Clear(); + + WriteText(value); - SetWindowText(GetHwnd(), valueDos.c_str()); + // mark the control as being not dirty - we changed its text, not the + // user + DiscardEdits(); - // for compatibility with the GTK and because it is more logical, we - // move the cursor to the end of the text after SetValue() + // for compatibility, don't move the cursor when doing SetValue() + SetInsertionPoint(0); + } +} - // GRG, Jun/2000: Changed this back after a lot of discussion - // in the lists. wxWindows 2.2 will have a set of flags to - // customize this behaviour. - //SetInsertionPointEnd(); +#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU) - AdjustSpaceLimit(); +DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb) +{ + *pcb = 0; + + wchar_t *wbuf = (wchar_t *)buf; + const wchar_t *wpc = *(const wchar_t **)dwCookie; + while ( cb && *wpc ) + { + *wbuf++ = *wpc++; + + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); } + + *(const wchar_t **)dwCookie = wpc; + + return 0; } +extern long wxEncodingToCodepage(wxFontEncoding encoding); // from strconv.cpp + +#if wxUSE_UNICODE_MSLU +bool wxTextCtrl::StreamIn(const wxString& value, wxFontEncoding WXUNUSED(encoding)) +{ + const wchar_t *wpc = value.c_str(); +#else +bool wxTextCtrl::StreamIn(const wxString& value, wxFontEncoding encoding) +{ + // we have to use EM_STREAMIN to force richedit control 2.0+ to show any + // text in the non default charset - otherwise it thinks it knows better + // than we do and always shows it in the default one + + // first get the Windows code page for this encoding + long codepage = wxEncodingToCodepage(encoding); + if ( codepage == -1 ) + { + // unknown encoding + return FALSE; + } + + // next translate to Unicode using this code page + int len = ::MultiByteToWideChar(codepage, 0, value, -1, NULL, 0); + wxWCharBuffer wchBuf(len); + if ( !::MultiByteToWideChar(codepage, 0, value, -1, + (wchar_t *)wchBuf.data(), len) ) + { + wxLogLastError(_T("MultiByteToWideChar")); + } + + // finally, stream it in the control + const wchar_t *wpc = wchBuf; +#endif // wxUSE_UNICODE_MSLU + + EDITSTREAM eds; + wxZeroMemory(eds); + eds.dwCookie = (DWORD)&wpc; + // the cast below is needed for broken (very) old mingw32 headers + eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn; + + if ( !::SendMessage(GetHwnd(), EM_STREAMIN, + SF_TEXT | SF_UNICODE | SFF_SELECTION, + (LPARAM)&eds) || eds.dwError ) + { + wxLogLastError(_T("EM_STREAMIN")); + + return FALSE; + } + + return TRUE; +} + +#endif // wxUSE_RICHEDIT + void wxTextCtrl::WriteText(const wxString& value) { wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); #if wxUSE_RICHEDIT - // ensure that the new text will be in the default style - if ( IsRich() && - (m_defaultStyle.HasFont() || m_defaultStyle.HasTextColour()) ) + // there are several complications with the rich edit controls here + bool done = FALSE; + if ( IsRich() ) { - long start, end; - GetSelection(&start, &end); - SetStyle(start, end, m_defaultStyle ); + // first, ensure that the new text will be in the default style + if ( !m_defaultStyle.IsDefault() ) + { + long start, end; + GetSelection(&start, &end); + SetStyle(start, end, m_defaultStyle); + } + +#if wxUSE_UNICODE_MSLU + // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x, + // but EM_STREAMIN works + if ( wxGetOsVersion() == wxWIN95 && GetRichVersion() > 1 ) + { + done = StreamIn(valueDos, wxFONTENCODING_SYSTEM); + } +#endif // wxUSE_UNICODE_MSLU + +#if !wxUSE_UNICODE + // next check if the text we're inserting must be shown in a non + // default charset -- this only works for RichEdit > 1.0 + if ( GetRichVersion() > 1 ) + { + wxFont font = m_defaultStyle.GetFont(); + if ( !font.Ok() ) + font = GetFont(); + + if ( font.Ok() ) + { + wxFontEncoding encoding = font.GetEncoding(); + if ( encoding != wxFONTENCODING_SYSTEM ) + { + done = StreamIn(valueDos, encoding); + } + } + } +#endif // !wxUSE_UNICODE } -#endif // wxUSE_RICHEDIT - SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); + if ( !done ) +#endif // wxUSE_RICHEDIT + { + ::SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); + } AdjustSpaceLimit(); } @@ -461,12 +581,13 @@ void wxTextCtrl::WriteText(const wxString& value) void wxTextCtrl::AppendText(const wxString& text) { SetInsertionPointEnd(); + WriteText(text); } void wxTextCtrl::Clear() { - SetWindowText(GetHwnd(), wxT("")); + ::SetWindowText(GetHwnd(), wxT("")); } // ---------------------------------------------------------------------------- @@ -518,23 +639,24 @@ bool wxTextCtrl::CanCut() const bool wxTextCtrl::CanPaste() const { + if ( !IsEditable() ) + return FALSE; + #if wxUSE_RICHEDIT - if (m_isRich) + if ( IsRich() ) { - int dataFormat = 0; // 0 == any format - return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0); + UINT cf = 0; // 0 == any format + + return ::SendMessage(GetHwnd(), EM_CANPASTE, cf, 0) != 0; } -#endif - if (!IsEditable()) - return FALSE; +#endif // wxUSE_RICHEDIT // Standard edit control: check for straight text on clipboard - bool isTextAvailable = FALSE; - if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) - { - isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); - ::CloseClipboard(); - } + if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) + return FALSE; + + bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0; + ::CloseClipboard(); return isTextAvailable; } @@ -551,34 +673,7 @@ void wxTextCtrl::SetEditable(bool editable) void wxTextCtrl::SetInsertionPoint(long pos) { - HWND hWnd = GetHwnd(); -#ifdef __WIN32__ -#if wxUSE_RICHEDIT - if ( m_isRich) - { - CHARRANGE range; - range.cpMin = pos; - range.cpMax = pos; - SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); - } - else -#endif // wxUSE_RICHEDIT - { - SendMessage(hWnd, EM_SETSEL, pos, pos); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); - } -#else // Win16 - SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos)); -#endif // Win32/16 - -#if wxUSE_RICHEDIT - if ( !m_isRich) -#endif - { - static const wxChar *nothing = _T(""); - SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); - } + SetSelection(pos, pos); } void wxTextCtrl::SetInsertionPointEnd() @@ -590,7 +685,7 @@ void wxTextCtrl::SetInsertionPointEnd() long wxTextCtrl::GetInsertionPoint() const { #if wxUSE_RICHEDIT - if (m_isRich) + if ( IsRich() ) { CHARRANGE range; range.cpMin = 0; @@ -598,7 +693,7 @@ long wxTextCtrl::GetInsertionPoint() const SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); return range.cpMin; } -#endif +#endif // wxUSE_RICHEDIT DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); return Pos & 0xFFFF; @@ -626,29 +721,26 @@ long wxTextCtrl::GetLastPosition() const void wxTextCtrl::GetSelection(long* from, long* to) const { #if wxUSE_RICHEDIT - if (m_isRich) + if ( IsRich() ) { CHARRANGE charRange; - ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange); + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange); *from = charRange.cpMin; *to = charRange.cpMax; } else -#endif // rich/!rich +#endif // !wxUSE_RICHEDIT { DWORD dwStart, dwEnd; - WPARAM wParam = (WPARAM) &dwStart; // receives starting position - LPARAM lParam = (LPARAM) &dwEnd; // receives ending position - - ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); + ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd); *from = dwStart; *to = dwEnd; } } -wxString wxTextCtrl::GetSelection() const +wxString wxTextCtrl::GetStringSelection() const { // the base class version works correctly for the rich text controls // because there the lines are terminated with just '\r' which means that @@ -656,8 +748,8 @@ wxString wxTextCtrl::GetSelection() const // in GetValue() but for the normal ones when we replace "\r\n" with '\n' // we break the indices #if wxUSE_RICHEDIT - if ( m_isRich ) - return wxTextCtrlBase::GetSelection(); + if ( IsRich() ) + return wxTextCtrlBase::GetStringSelection(); #endif // wxUSE_RICHEDIT long from, to; @@ -684,62 +776,106 @@ bool wxTextCtrl::IsEditable() const } // ---------------------------------------------------------------------------- -// Editing +// selection // ---------------------------------------------------------------------------- -void wxTextCtrl::Replace(long from, long to, const wxString& value) +void wxTextCtrl::SetSelection(long from, long to) { - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - - // Set selection and remove it -#ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, fromChar, toChar); - SendMessage(hWnd, EM_REPLACESEL, (WPARAM)TRUE, (LPARAM)value.c_str()); -#else - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); - SendMessage(hWnd, EM_REPLACESEL, (WPARAM)0, (LPARAM)value.c_str()); -#endif + DoSetSelection(from, to); } -void wxTextCtrl::Remove(long from, long to) +void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret) { + // if from and to are both -1, it means (in wxWindows) that all text should + // be selected - translate into Windows convention + if ( (from == -1) && (to == -1) ) + { + from = 0; + to = -1; + } + HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - // Cut all selected text #ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, fromChar, toChar); - SendMessage(hWnd, EM_REPLACESEL, (WPARAM)TRUE, (LPARAM)""); -#else - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); - SendMessage(hWnd, EM_REPLACESEL, (WPARAM)0, (LPARAM)""); -#endif -} - -void wxTextCtrl::SetSelection(long from, long to) -{ - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + CHARRANGE range; + range.cpMin = from; + range.cpMax = to; + SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); + } + else +#endif // wxUSE_RICHEDIT + { + SendMessage(hWnd, EM_SETSEL, (WPARAM)from, (LPARAM)to); + } - // if from and to are both -1, it means (in wxWindows) that all text should - // be selected. Translate into Windows convention - if ((from == -1) && (to == -1)) + if ( scrollCaret ) { - fromChar = 0; - toChar = -1; +#if wxUSE_RICHEDIT + // EM_SCROLLCARET doesn't work for me with the richedit controls + // unless it has focus although I don't see any mention of it in the + // docs - this is the only workaround I found. Of course it's not + // perfect as it adds the dummy focus set/kill events but it's still + // better than nothing + HWND hwndFocusOld; + if ( IsRich() ) + { + hwndFocusOld = ::GetFocus(); + if ( hwndFocusOld == GetHwnd() ) + { + // don't change focus + hwndFocusOld = 0; + } + + if ( hwndFocusOld ) + { + ::SetFocus(GetHwnd()); + } + } + else // not rich + { + hwndFocusOld = 0; + } +#endif // wxUSE_RICHEDIT + + SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + +#if wxUSE_RICHEDIT + if ( hwndFocusOld ) + { + ::SetFocus(hwndFocusOld); + } +#endif // wxUSE_RICHEDIT } +#else // Win16 + // WPARAM is 0: selection is scrolled into view + SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(from, to)); +#endif // Win32/16 +} + +// ---------------------------------------------------------------------------- +// Editing +// ---------------------------------------------------------------------------- +void wxTextCtrl::Replace(long from, long to, const wxString& value) +{ + // Set selection and remove it + DoSetSelection(from, to, FALSE /* don't scroll caret into view */); + + SendMessage(GetHwnd(), EM_REPLACESEL, #ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + TRUE, #else - // WPARAM is 0: selection is scrolled into view - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); + FALSE, #endif + (LPARAM)value.c_str()); +} + +void wxTextCtrl::Remove(long from, long to) +{ + Replace(from, to, _T("")); } bool wxTextCtrl::LoadFile(const wxString& file) @@ -787,7 +923,7 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const // This gets the line number containing the character int lineNo; #if wxUSE_RICHEDIT - if ( m_isRich ) + if ( IsRich() ) { lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); } @@ -1127,7 +1263,7 @@ void wxTextCtrl::OnEraseBackground(wxEraseEvent& event) ::SetMapMode(hdc, mode); } -#endif +#endif // Win16 bool wxTextCtrl::AdjustSpaceLimit() { @@ -1155,7 +1291,7 @@ bool wxTextCtrl::AdjustSpaceLimit() limit = len + 0x8000; // 32Kb #if wxUSE_RICHEDIT - if ( m_isRich ) + if ( IsRich() ) { // as a nice side effect, this also allows passing limit > 64Kb ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit); @@ -1413,7 +1549,9 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) bool changeSel = start != startOld || end != endOld; if ( changeSel ) - SendMessage(GetHwnd(), EM_SETSEL, (WPARAM) start, (LPARAM) end); + { + DoSetSelection(start, end, FALSE /* don't scroll caret into view */); + } // initialize CHARFORMAT struct #if wxUSE_RICHEDIT2 @@ -1426,6 +1564,9 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) if ( style.HasFont() ) { + // VZ: CFM_CHARSET doesn't seem to do anything at all in RichEdit 2.0 + // but using it doesn't seem to hurt neither so leaving it for now + cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET | CFM_ITALIC | CFM_BOLD | CFM_UNDERLINE; @@ -1486,7 +1627,7 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) if ( changeSel ) { // restore the original selection - SendMessage(GetHwnd(), EM_SETSEL, (WPARAM)startOld, (LPARAM)endOld); + DoSetSelection(startOld, endOld, FALSE); } return ok;