X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f68586e51b20dccee3fd5645aeaca7cc8ff298c2..dbc38199c0d74ba6cddeced769765a2e445e380d:/src/msw/textctrl.cpp?ds=sidebyside diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index 3f00865a4c..eb7c59e6ec 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: textctrl.cpp +// Name: msw/textctrl.cpp // Purpose: wxTextCtrl // Author: Julian Smart // Modified by: @@ -28,16 +28,21 @@ #pragma hdrstop #endif +#if wxUSE_TEXTCTRL + #ifndef WX_PRECOMP #include "wx/textctrl.h" #include "wx/settings.h" #include "wx/brush.h" #include "wx/utils.h" + #include "wx/intl.h" #include "wx/log.h" + #include "wx/app.h" #endif +#include "wx/module.h" + #if wxUSE_CLIPBOARD - #include "wx/app.h" #include "wx/clipbrd.h" #endif @@ -51,17 +56,88 @@ #include #include -#if wxUSE_IOSTREAMH -# include -#else -# include +#if wxUSE_RICHEDIT && (!defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)) + #include #endif -#if wxUSE_RICHEDIT && (!defined(__GNUWIN32__) || defined(wxUSE_NORLANDER_HEADERS)) - #include +// old mingw32 doesn't define this +#ifndef CFM_CHARSET + #define CFM_CHARSET 0x08000000 +#endif // CFM_CHARSET + +#ifndef CFM_BACKCOLOR + #define CFM_BACKCOLOR 0x04000000 +#endif + +// cygwin does not have these defined for richedit +#ifndef ENM_LINK + #define ENM_LINK 0x04000000 +#endif + +#ifndef EM_AUTOURLDETECT + #define EM_AUTOURLDETECT (WM_USER + 91) +#endif + +#ifndef EN_LINK + #define EN_LINK 0x070b + + typedef struct _enlink + { + NMHDR nmhdr; + UINT msg; + WPARAM wParam; + LPARAM lParam; + CHARRANGE chrg; + } ENLINK; +#endif // ENLINK + +#ifndef SF_UNICODE + #define SF_UNICODE 0x0010 +#endif + +// Watcom C++ doesn't define this +#ifndef SCF_ALL +#define SCF_ALL 0x0004 #endif -#if !USE_SHARED_LIBRARY +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb); + +#endif // wxUSE_RICHEDIT + +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +// this module initializes RichEdit DLL(s) if needed +class wxRichEditModule : public wxModule +{ +public: + virtual bool OnInit(); + virtual void OnExit(); + + // load the richedit DLL of at least of required version + static bool Load(int version = 1); + +private: + // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs + static HINSTANCE ms_hRichEdit[2]; + + DECLARE_DYNAMIC_CLASS(wxRichEditModule) +}; + +HINSTANCE wxRichEditModule::ms_hRichEdit[2] = { NULL, NULL }; + +IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule) + +#endif // wxUSE_RICHEDIT // ---------------------------------------------------------------------------- // event tables and other macros @@ -84,10 +160,11 @@ BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste) EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo) EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo) +#ifdef __WIN16__ + EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground) +#endif END_EVENT_TABLE() -#endif // USE_SHARED_LIBRARY - // ============================================================================ // implementation // ============================================================================ @@ -96,10 +173,10 @@ END_EVENT_TABLE() // creation // ---------------------------------------------------------------------------- -wxTextCtrl::wxTextCtrl() +void wxTextCtrl::Init() { #if wxUSE_RICHEDIT - m_isRich = FALSE; + m_verRichEdit = 0; #endif } @@ -115,133 +192,163 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, if ( !CreateBase(parent, id, pos, size, style, validator, name) ) return FALSE; - // Validator was set in CreateBase - //SetValidator(validator); if ( parent ) parent->AddChild(this); - // set colours - SetupColours(); - // translate wxWin style flags to MSW ones, checking for consistency while // doing it - long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; + long msStyle = ES_LEFT | WS_TABSTOP; + + if ( m_windowStyle & wxCLIP_SIBLINGS ) + msStyle |= WS_CLIPSIBLINGS; + if ( m_windowStyle & wxTE_MULTILINE ) { wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), - wxT("wxTE_PROCESS_ENTER style is ignored for multiline " - "text controls (they always process it)") ); + wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") ); msStyle |= ES_MULTILINE | ES_WANTRETURN; if ((m_windowStyle & wxTE_NO_VSCROLL) == 0) msStyle |= WS_VSCROLL; m_windowStyle |= wxTE_PROCESS_ENTER; } - else + else // !multiline + { + // there is really no reason to not have this style for single line + // text controls msStyle |= ES_AUTOHSCROLL; + } - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); + if ( m_windowStyle & wxHSCROLL ) + msStyle |= WS_HSCROLL | ES_AUTOHSCROLL; - if (m_windowStyle & wxTE_READONLY) + if ( m_windowStyle & wxTE_READONLY ) msStyle |= ES_READONLY; - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); - if (m_windowStyle & wxTE_PASSWORD) // hidden input + if ( m_windowStyle & wxTE_PASSWORD ) msStyle |= ES_PASSWORD; - // we always want the characters and the arrows - m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; - - // we may have several different cases: - // 1. normal case: both TAB and ENTER are used for dialog navigation - // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next - // control in the dialog - // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation - // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to - // the next control - if ( m_windowStyle & wxTE_PROCESS_ENTER ) - m_lDlgCode |= DLGC_WANTMESSAGE; - if ( m_windowStyle & wxTE_PROCESS_TAB ) - m_lDlgCode |= DLGC_WANTTAB; + if ( m_windowStyle & wxTE_AUTO_SCROLL ) + msStyle |= ES_AUTOHSCROLL; + + if ( m_windowStyle & wxTE_NOHIDESEL ) + msStyle |= ES_NOHIDESEL; // do create the control - either an EDIT or RICHEDIT - const wxChar *windowClass = wxT("EDIT"); + wxString windowClass = wxT("EDIT"); #if wxUSE_RICHEDIT - if ( m_windowStyle & wxTE_RICH ) + if ( m_windowStyle & wxTE_AUTO_URL ) { - msStyle |= ES_AUTOVSCROLL; - m_isRich = TRUE; - windowClass = wxT("RICHEDIT"); + // automatic URL detection only works in RichEdit 2.0+ + m_windowStyle |= wxTE_RICH2; } - else - m_isRich = FALSE; -#endif - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); - - // Even with extended styles, need to combine with WS_BORDER for them to - // look right. - if ( want3D || wxStyleHasBorder(m_windowStyle) ) - msStyle |= WS_BORDER; - - // NB: don't use pos and size as CreateWindowEx arguments because they - // might be -1 in which case we should use the default values (and - // SetSize called below takes care of it) - m_hWnd = (WXHWND)::CreateWindowEx(exStyle, - windowClass, - NULL, - msStyle, - 0, 0, 0, 0, - GetHwndOf(parent), - (HMENU)m_windowId, - wxGetInstance(), - NULL); - - wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") ); - -#if wxUSE_CTL3D - if ( want3D ) + if ( m_windowStyle & wxTE_RICH2 ) { - Ctl3dSubclassCtl(GetHwnd()); - m_useCtl3D = TRUE; + // using richedit 2.0 implies using wxTE_RICH + m_windowStyle |= wxTE_RICH; } -#endif -#if wxUSE_RICHEDIT - if (m_isRich) + // we need to load the richedit DLL before creating the rich edit control + if ( m_windowStyle & wxTE_RICH ) { - // Have to enable events - ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, - ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); - } -#endif + static bool s_errorGiven = FALSE;// MT-FIXME + + // Which version do we need? Use 1.0 by default because it is much more + // like the the standard EDIT or 2.0 if explicitly requested, but use + // only 2.0 in Unicode mode as 1.0 doesn't support Unicode at all + // + // TODO: RichEdit 3.0 is apparently capable of emulating RichEdit 1.0 + // (and thus EDIT) much better than RichEdit 2.0 so we probably + // should use 3.0 if available as it is the best of both worlds - + // but as I can't test it right now I don't do it (VZ) +#if wxUSE_UNICODE + const int verRichEdit = 2; +#else // !wxUSE_UNICODE + int verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1; +#endif // wxUSE_UNICODE/!wxUSE_UNICODE + + // only give the error msg once if the DLL can't be loaded + if ( !s_errorGiven ) + { + // try to load the RichEdit DLL (will do nothing if already done) + if ( !wxRichEditModule::Load(verRichEdit) ) + { +#if !wxUSE_UNICODE + // try another version? + verRichEdit = 3 - verRichEdit; // 1 <-> 2 + + if ( !wxRichEditModule::Load(verRichEdit) ) +#endif // wxUSE_UNICODE + { + wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll")); + + s_errorGiven = TRUE; + } + } + } - SubclassWin(GetHWND()); + // have we managed to load any richedit version? + if ( !s_errorGiven ) + { + msStyle |= ES_AUTOVSCROLL; - // set font, position, size and initial value - wxFont& fontParent = parent->GetFont(); - if ( fontParent.Ok() ) + m_verRichEdit = verRichEdit; + if ( m_verRichEdit == 1 ) + { + windowClass = wxT("RICHEDIT"); + } + else + { +#ifndef RICHEDIT_CLASS + wxString RICHEDIT_CLASS; + RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), m_verRichEdit); +#if wxUSE_UNICODE + RICHEDIT_CLASS += _T('W'); +#else // ANSI + RICHEDIT_CLASS += _T('A'); +#endif // Unicode/ANSI +#endif // !RICHEDIT_CLASS + + windowClass = RICHEDIT_CLASS; + } + } + } +#endif // wxUSE_RICHEDIT + + // we need to turn '\n's into "\r\n"s for the multiline controls + wxString valueWin; + if ( m_windowStyle & wxTE_MULTILINE ) { - SetFont(fontParent); + valueWin = wxTextFile::Translate(value, wxTextFileType_Dos); } - else + else // single line { - SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); + valueWin = value; } - // Causes a crash for Symantec C++ and WIN32 for some reason -#if !(defined(__SC__) && defined(__WIN32__)) - if ( !value.IsEmpty() ) + if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) ) + return FALSE; + + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); + +#if wxUSE_RICHEDIT + if ( IsRich() ) { - SetValue(value); - } -#endif + // have to enable events manually + LPARAM mask = ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE; - SetSize(pos.x, pos.y, size.x, size.y); + if ( m_windowStyle & wxTE_AUTO_URL ) + { + mask |= ENM_LINK; + + ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0); + } + + ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask); + } +#endif // wxUSE_RICHEDIT return TRUE; } @@ -249,38 +356,39 @@ 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; -} - -void wxTextCtrl::SetupColours() -{ - // FIXME why is bg colour not inherited from parent? - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetForegroundColour()); + 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; } // ---------------------------------------------------------------------------- @@ -289,26 +397,253 @@ void wxTextCtrl::SetupColours() wxString wxTextCtrl::GetValue() const { - return wxGetWindowText(GetHWND()); + // range 0..-1 is special for GetRange() and means to retrieve all text + return GetRange(0, -1); +} + +wxString wxTextCtrl::GetRange(long from, long to) const +{ + wxString str; + + if ( from >= to && to != -1 ) + { + // nothing to retrieve + return str; + } + +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + int len = GetWindowTextLength(GetHwnd()); + if ( len > from ) + { + // alloc one extra WORD as needed by the control + wxChar *p = str.GetWriteBuf(++len); + + TEXTRANGE textRange; + textRange.chrg.cpMin = from; + textRange.chrg.cpMax = to == -1 ? len : to; + textRange.lpstrText = p; + + (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange); + + if ( m_verRichEdit > 1 ) + { + // RichEdit 2.0 uses just CR ('\r') for the newlines which is + // neither Unix nor Windows style - convert it to something + // reasonable + for ( ; *p; p++ ) + { + if ( *p == _T('\r') ) + *p = _T('\n'); + } + } + + str.UngetWriteBuf(); + + if ( m_verRichEdit == 1 ) + { + // convert to the canonical form - see comment below + str = wxTextFile::Translate(str, wxTextFileType_Unix); + } + } + //else: no text at all, leave the string empty + } + else +#endif // wxUSE_RICHEDIT + { + // retrieve all text + str = wxGetWindowText(GetHWND()); + + // need only a range? + if ( from < to ) + { + str = str.Mid(from, to - from); + } + + // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the + // canonical one (same one as above) for consistency with the other kinds + // of controls and, more importantly, with the other ports + str = wxTextFile::Translate(str, wxTextFileType_Unix); + } + + return str; } void wxTextCtrl::SetValue(const wxString& value) { - wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + // if the text is long enough, it's faster to just set it instead of first + // comparing it with the old one (chances are that it will be different + // anyhow, this comparison is there to avoid flicker for small single-line + // edit controls mostly) + if ( (value.length() > 0x400) || (value != GetValue()) ) + { + DoWriteText(value, FALSE /* not selection only */); + + // mark the control as being not dirty - we changed its text, not the + // user + DiscardEdits(); - if ( valueDos != GetValue() ) + // for compatibility, don't move the cursor when doing SetValue() + SetInsertionPoint(0); + } +} + +#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU) + +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 ) { - SetWindowText(GetHwnd(), valueDos); + *wbuf++ = *wpc++; - AdjustSpaceLimit(); + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); + } + + *(const wchar_t **)dwCookie = wpc; + + return 0; +} + +extern long wxEncodingToCodepage(wxFontEncoding encoding); // from utils.cpp + +#if wxUSE_UNICODE_MSLU +bool wxTextCtrl::StreamIn(const wxString& value, + wxFontEncoding WXUNUSED(encoding), + bool selectionOnly) +{ + const wchar_t *wpc = value.c_str(); +#else // !wxUSE_UNICODE_MSLU +bool wxTextCtrl::StreamIn(const wxString& value, + wxFontEncoding encoding, + bool selectionOnly) +{ + // 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); + +#if wxUSE_WCHAR_T + wxWCharBuffer wchBuf(len); +#else + wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t)); +#endif + + if ( !::MultiByteToWideChar(codepage, 0, value, -1, + (wchar_t *)(const wchar_t *)wchBuf, 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 | + (selectionOnly ? SFF_SELECTION : 0), + (LPARAM)&eds) || eds.dwError ) + { + wxLogLastError(_T("EM_STREAMIN")); + } + +#if !wxUSE_WCHAR_T + free(wchBuf); +#endif // !wxUSE_WCHAR_T + + return TRUE; } +#endif // wxUSE_RICHEDIT + void wxTextCtrl::WriteText(const wxString& value) { - wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + DoWriteText(value); +} + +void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly) +{ + wxString valueDos; + if ( m_windowStyle & wxTE_MULTILINE ) + valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + else + valueDos = value; + +#if wxUSE_RICHEDIT + // there are several complications with the rich edit controls here + bool done = FALSE; + if ( IsRich() ) + { + // 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, selectionOnly); + } +#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, selectionOnly); + } + } + } +#endif // !wxUSE_UNICODE + } + + if ( !done ) +#endif // wxUSE_RICHEDIT + { + if ( !selectionOnly ) + { + SetSelection(-1, -1); + } - SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); + ::SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); + } AdjustSpaceLimit(); } @@ -316,12 +651,13 @@ void wxTextCtrl::WriteText(const wxString& value) void wxTextCtrl::AppendText(const wxString& text) { SetInsertionPointEnd(); + WriteText(text); } void wxTextCtrl::Clear() { - SetWindowText(GetHwnd(), wxT("")); + ::SetWindowText(GetHwnd(), wxT("")); } // ---------------------------------------------------------------------------- @@ -332,8 +668,7 @@ void wxTextCtrl::Copy() { if (CanCopy()) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_COPY, 0, 0L); + ::SendMessage(GetHwnd(), WM_COPY, 0, 0L); } } @@ -341,8 +676,7 @@ void wxTextCtrl::Cut() { if (CanCut()) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_CUT, 0, 0L); + ::SendMessage(GetHwnd(), WM_CUT, 0, 0L); } } @@ -350,8 +684,7 @@ void wxTextCtrl::Paste() { if (CanPaste()) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_PASTE, 0, 0L); + ::SendMessage(GetHwnd(), WM_PASTE, 0, 0L); } } @@ -359,37 +692,35 @@ bool wxTextCtrl::CanCopy() const { // Can copy if there's a selection long from, to; - GetSelection(& from, & to); - return (from != to); + GetSelection(&from, &to); + return from != to; } bool wxTextCtrl::CanCut() const { - // Can cut if there's a selection - long from, to; - GetSelection(& from, & to); - return (from != to); + return CanCopy() && IsEditable(); } 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; } @@ -406,41 +737,32 @@ void wxTextCtrl::SetEditable(bool editable) void wxTextCtrl::SetInsertionPoint(long pos) { - HWND hWnd = GetHwnd(); -#ifdef __WIN32__ + DoSetSelection(pos, pos); +} + +void wxTextCtrl::SetInsertionPointEnd() +{ + long pos; + #if wxUSE_RICHEDIT - if ( m_isRich) + if ( m_verRichEdit == 1 ) { - CHARRANGE range; - range.cpMin = pos; - range.cpMax = pos; - SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + // we don't have to waste time calling GetLastPosition() in this case + pos = -1; } - else + else // !RichEdit 1.0 #endif // wxUSE_RICHEDIT { - SendMessage(hWnd, EM_SETSEL, pos, pos); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + pos = GetLastPosition(); } -#else // Win16 - SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos)); -#endif // Win32/16 - - static const char *nothing = ""; - SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); -} -void wxTextCtrl::SetInsertionPointEnd() -{ - long pos = GetLastPosition(); SetInsertionPoint(pos); } long wxTextCtrl::GetInsertionPoint() const { #if wxUSE_RICHEDIT - if (m_isRich) + if ( IsRich() ) { CHARRANGE range; range.cpMin = 0; @@ -448,7 +770,7 @@ 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; @@ -456,19 +778,12 @@ long wxTextCtrl::GetInsertionPoint() const long wxTextCtrl::GetLastPosition() const { - HWND hWnd = GetHwnd(); - - // Will always return a number > 0 (according to docs) - int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); + int numLines = GetNumberOfLines(); + long posStartLastLine = XYToPosition(0, numLines - 1); - // This gets the char index for the _beginning_ of the last line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); + long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine); - // Get number of characters in the last line. We'll add this to the character - // index for the last line, 1st position. - int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L); - - return (long)(charIndex + lineLength); + return posStartLastLine + lenLastLine; } // If the return values from and to are the same, there is no @@ -476,99 +791,99 @@ 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; - - return; } -#endif - DWORD dwStart, dwEnd; - WPARAM wParam = (WPARAM) (DWORD*) & dwStart; // receives starting position - LPARAM lParam = (LPARAM) (DWORD*) & dwEnd; // receives ending position - - ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); + else +#endif // !wxUSE_RICHEDIT + { + DWORD dwStart, dwEnd; + ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd); - *from = dwStart; - *to = dwEnd; + *from = dwStart; + *to = dwEnd; + } } bool wxTextCtrl::IsEditable() const { long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); - return ((style & ES_READONLY) == 0); + return (style & ES_READONLY) == 0; } // ---------------------------------------------------------------------------- -// Editing +// selection // ---------------------------------------------------------------------------- -void wxTextCtrl::Replace(long from, long to, const wxString& value) +void wxTextCtrl::SetSelection(long from, long to) { -#if wxUSE_CLIPBOARD - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - - // Set selection and remove it -#ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, fromChar, toChar); -#else - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); -#endif - SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); - - // Now replace with 'value', by pasting. - wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0); + // 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; + } - // Paste into edit control - SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); -#else - wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0."); -#endif + DoSetSelection(from, to); } -void wxTextCtrl::Remove(long from, long to) +void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret) { HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - // Cut all selected text #ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, fromChar, toChar); -#else - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); -#endif - SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); -} - -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; + SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); } +#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) @@ -586,7 +901,7 @@ bool wxTextCtrl::LoadFile(const wxString& file) bool wxTextCtrl::IsModified() const { - return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0); + return SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0; } // Makes 'unmodified' @@ -602,11 +917,10 @@ int wxTextCtrl::GetNumberOfLines() const long wxTextCtrl::XYToPosition(long x, long y) const { - HWND hWnd = GetHwnd(); - // This gets the char index for the _beginning_ of this line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0); - return (long)(x + charIndex); + long charIndex = SendMessage(GetHwnd(), EM_LINEINDEX, (WPARAM)y, (LPARAM)0); + + return charIndex + x; } bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const @@ -614,15 +928,17 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const HWND hWnd = GetHwnd(); // This gets the line number containing the character - int lineNo; + long lineNo; #if wxUSE_RICHEDIT - if ( m_isRich ) + if ( IsRich() ) { - lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); + lineNo = SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); } else #endif // wxUSE_RICHEDIT - lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); + { + lineNo = SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); + } if ( lineNo == -1 ) { @@ -631,7 +947,7 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const } // This gets the char index for the _beginning_ of this line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); + long charIndex = SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); if ( charIndex == -1 ) { return FALSE; @@ -639,9 +955,9 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const // The X position must therefore be the different between pos and charIndex if ( x ) - *x = (long)(pos - charIndex); + *x = pos - charIndex; if ( y ) - *y = (long)lineNo; + *y = lineNo; return TRUE; } @@ -671,28 +987,43 @@ void wxTextCtrl::ShowPosition(long pos) (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll); } +long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const +{ + return ::SendMessage(GetHwnd(), EM_LINELENGTH, (WPARAM)pos, 0); +} + int wxTextCtrl::GetLineLength(long lineNo) const { - long charIndex = XYToPosition(0, lineNo); - int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); - return len; + long pos = XYToPosition(0, lineNo); + + return GetLengthOfLineContainingPos(pos); } wxString wxTextCtrl::GetLineText(long lineNo) const { size_t len = (size_t)GetLineLength(lineNo) + 1; - char *buf = (char *)malloc(len); - *(WORD *)buf = len; - int noChars = (int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); - buf[noChars] = 0; - wxString str(buf); + // there must be at least enough place for the length WORD in the + // buffer + len += sizeof(WORD); - free(buf); + wxString str; + wxChar *buf = str.GetWriteBuf(len); + + *(WORD *)buf = (WORD)len; + len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); + buf[len] = 0; + + str.UngetWriteBuf(len); return str; } +void wxTextCtrl::SetMaxLength(unsigned long len) +{ + ::SendMessage(GetHwnd(), EM_LIMITTEXT, len, 0); +} + // ---------------------------------------------------------------------------- // Undo/redo // ---------------------------------------------------------------------------- @@ -716,12 +1047,12 @@ void wxTextCtrl::Redo() bool wxTextCtrl::CanUndo() const { - return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); + return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0; } bool wxTextCtrl::CanRedo() const { - return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); + return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0; } // ---------------------------------------------------------------------------- @@ -743,28 +1074,50 @@ void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) } } -WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, - WXLPARAM lParam) +// ---------------------------------------------------------------------------- +// kbd input processing +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg) { -#if wxUSE_CTL3D - if ( m_useCtl3D ) + MSG *msg = (MSG *)pMsg; + + // check for our special keys here: if we don't do it and the parent frame + // uses them as accelerators, they wouldn't work at all, so we disable + // usual preprocessing for them + if ( msg->message == WM_KEYDOWN ) { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; + WORD vkey = (WORD) msg->wParam; + if ( (HIWORD(msg->lParam) & KF_ALTDOWN) == KF_ALTDOWN ) + { + if ( vkey == VK_BACK ) + return FALSE; + } + else // no Alt + { + if ( wxIsCtrlDown() ) + { + switch ( vkey ) + { + case 'C': + case 'V': + case 'X': + case VK_INSERT: + case VK_DELETE: + case VK_HOME: + case VK_END: + return FALSE; + } + } + else if ( wxIsShiftDown() ) + { + if ( vkey == VK_INSERT || vkey == VK_DELETE ) + return FALSE; + } + } } -#endif - - HDC hdc = (HDC)pDC; - SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT - : OPAQUE); - - ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); - - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); + return wxControl::MSWShouldPreProcessMessage(pMsg); } void wxTextCtrl::OnChar(wxKeyEvent& event) @@ -775,7 +1128,8 @@ void wxTextCtrl::OnChar(wxKeyEvent& event) if ( !(m_windowStyle & wxTE_MULTILINE) ) { wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); - event.SetEventObject( this ); + InitCommandEvent(event); + event.SetString(GetValue()); if ( GetEventHandler()->ProcessEvent(event) ) return; } @@ -788,33 +1142,48 @@ void wxTextCtrl::OnChar(wxKeyEvent& event) // ourselves the fact that we got here means that the user code // decided to skip processing of this TAB - probably to let it // do its default job. - // - // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is - // handled by Windows { wxNavigationKeyEvent eventNav; eventNav.SetDirection(!event.ShiftDown()); - eventNav.SetWindowChange(FALSE); + eventNav.SetWindowChange(event.ControlDown()); eventNav.SetEventObject(this); - if ( GetEventHandler()->ProcessEvent(eventNav) ) + if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) ) return; } break; - - default: - event.Skip(); - return; } - // don't just call event.Skip() because this will cause TABs and ENTERs - // be passed upwards and we don't always want this - instead process it - // right here - - // FIXME + // no, we didn't process it event.Skip(); } +long wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + // we always want the characters and the arrows + if ( nMsg == WM_GETDLGCODE ) + { + // we always want the chars and the arrows + long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; + + // we may have several different cases: + // 1. normal case: both TAB and ENTER are used for dialog navigation + // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next + // control in the dialog + // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation + // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to + // the next control + if ( m_windowStyle & wxTE_PROCESS_ENTER ) + lDlgCode |= DLGC_WANTMESSAGE; + if ( m_windowStyle & wxTE_PROCESS_TAB ) + lDlgCode |= DLGC_WANTTAB; + + return lDlgCode; + } + + return wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam); +} + bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { switch (param) @@ -823,8 +1192,8 @@ bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) case EN_KILLFOCUS: { wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS - : wxEVT_SET_FOCUS, - m_windowId); + : wxEVT_SET_FOCUS, + m_windowId); event.SetEventObject( this ); GetEventHandler()->ProcessEvent(event); } @@ -833,24 +1202,29 @@ bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) case EN_CHANGE: { wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId); - wxString val(GetValue()); - if ( !val.IsNull() ) - event.m_commandString = WXSTRINGCAST val; - event.SetEventObject( this ); + InitCommandEvent(event); + event.SetString(GetValue()); ProcessCommand(event); } break; - case EN_ERRSPACE: + case EN_MAXTEXT: // the text size limit has been hit - increase it - AdjustSpaceLimit(); + if ( !AdjustSpaceLimit() ) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId); + InitCommandEvent(event); + event.SetString(GetValue()); + ProcessCommand(event); + } break; // the other notification messages are not processed case EN_UPDATE: - case EN_MAXTEXT: + case EN_ERRSPACE: case EN_HSCROLL: case EN_VSCROLL: + return FALSE; default: return FALSE; } @@ -859,25 +1233,124 @@ bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) return TRUE; } -void wxTextCtrl::AdjustSpaceLimit() +WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor), +#if wxUSE_CTL3D + WXUINT message, + WXWPARAM wParam, + WXLPARAM lParam +#else + WXUINT WXUNUSED(message), + WXWPARAM WXUNUSED(wParam), + WXLPARAM WXUNUSED(lParam) +#endif + ) +{ +#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() && (GetWindowStyle() & wxTE_MULTILINE) == 0) + colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE); + + ::SetBkColor(hdc, wxColourToRGB(colBack)); + ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour())); + + wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID); + + return (WXHBRUSH)brush->GetResourceHandle(); +} + +// In WIN16, need to override normal erasing because +// Ctl3D doesn't use the wxWindows background colour. +#ifdef __WIN16__ +void wxTextCtrl::OnEraseBackground(wxEraseEvent& event) +{ + wxColour col(m_backgroundColour); + +#if wxUSE_CTL3D + if (m_useCtl3D) + col = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW); +#endif + + RECT rect; + ::GetClientRect(GetHwnd(), &rect); + + COLORREF ref = wxColourToRGB(col); + HBRUSH hBrush = ::CreateSolidBrush(ref); + if ( !hBrush ) + wxLogLastError(wxT("CreateSolidBrush")); + + HDC hdc = (HDC)event.GetDC()->GetHDC(); + + int mode = ::SetMapMode(hdc, MM_TEXT); + + ::FillRect(hdc, &rect, hBrush); + ::DeleteObject(hBrush); + ::SetMapMode(hdc, mode); + +} +#endif // Win16 + +bool wxTextCtrl::AdjustSpaceLimit() { #ifndef __WIN16__ - unsigned int len = ::GetWindowTextLength(GetHwnd()), - limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); - if ( len > limit ) + unsigned int limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); + + // HACK: we try to automatically extend the limit for the amount of text + // to allow (interactively) entering more than 64Kb of text under + // Win9x but we shouldn't reset the text limit which was previously + // set explicitly with SetMaxLength() + // + // we could solve this by storing the limit we set in wxTextCtrl but + // to save space we prefer to simply test here the actual limit + // value: we consider that SetMaxLength() can only be called for + // values < 32Kb + if ( limit < 0x8000 ) + { + // we've got more text than limit set by SetMaxLength() + return FALSE; + } + + unsigned int len = ::GetWindowTextLength(GetHwnd()); + if ( len >= limit ) { limit = len + 0x8000; // 32Kb #if wxUSE_RICHEDIT - if ( m_isRich || limit > 0xffff ) -#else - if ( limit > 0xffff ) -#endif - ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit); + if ( IsRich() ) + { + // as a nice side effect, this also allows passing limit > 64Kb + ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit); + } else +#endif // wxUSE_RICHEDIT + { + if ( limit > 0xffff ) + { + // this will set it to a platform-dependent maximum (much more + // than 64Kb under NT) + limit = 0; + } + ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); + } } -#endif +#endif // !Win16 + + // we changed the limit + return TRUE; } bool wxTextCtrl::AcceptsFocus() const @@ -896,7 +1369,7 @@ wxSize wxTextCtrl::DoGetBestSize() const int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); if ( m_windowStyle & wxTE_MULTILINE ) { - hText *= wxMin(GetNumberOfLines(), 5); + hText *= wxMax(GetNumberOfLines(), 5); } //else: for single line control everything is ok @@ -907,27 +1380,27 @@ wxSize wxTextCtrl::DoGetBestSize() const // standard handlers for standard edit menu events // ---------------------------------------------------------------------------- -void wxTextCtrl::OnCut(wxCommandEvent& event) +void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event)) { Cut(); } -void wxTextCtrl::OnCopy(wxCommandEvent& event) +void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event)) { Copy(); } -void wxTextCtrl::OnPaste(wxCommandEvent& event) +void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event)) { Paste(); } -void wxTextCtrl::OnUndo(wxCommandEvent& event) +void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event)) { Undo(); } -void wxTextCtrl::OnRedo(wxCommandEvent& event) +void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event)) { Redo(); } @@ -957,3 +1430,317 @@ void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) event.Enable( CanRedo() ); } +// the rest of the file only deals with the rich edit controls +#if wxUSE_RICHEDIT + +// ---------------------------------------------------------------------------- +// EN_LINK processing +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::MSWOnNotify(int WXUNUSED(idCtrl), WXLPARAM lParam, WXLPARAM *result) +{ + NMHDR *hdr = (NMHDR* )lParam; + if ( hdr->code == EN_LINK ) + { + ENLINK *enlink = (ENLINK *)hdr; + + switch ( enlink->msg ) + { + case WM_SETCURSOR: + // ok, so it is hardcoded - do we really nee to customize it? + ::SetCursor(GetHcursorOf(wxCursor(wxCURSOR_HAND))); + *result = TRUE; + break; + + case WM_MOUSEMOVE: + case WM_LBUTTONDOWN: + case WM_LBUTTONUP: + case WM_LBUTTONDBLCLK: + case WM_RBUTTONDOWN: + case WM_RBUTTONUP: + case WM_RBUTTONDBLCLK: + // send a mouse event + { + static const wxEventType eventsMouse[] = + { + wxEVT_MOTION, + wxEVT_LEFT_DOWN, + wxEVT_LEFT_UP, + wxEVT_LEFT_DCLICK, + wxEVT_RIGHT_DOWN, + wxEVT_RIGHT_UP, + wxEVT_RIGHT_DCLICK, + }; + + // the event ids are consecutive + wxMouseEvent + evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]); + + InitMouseEvent(evtMouse, + GET_X_LPARAM(enlink->lParam), + GET_Y_LPARAM(enlink->lParam), + enlink->wParam); + + wxTextUrlEvent event(m_windowId, evtMouse, + enlink->chrg.cpMin, + enlink->chrg.cpMax); + + InitCommandEvent(event); + + *result = ProcessCommand(event); + } + break; + } + + return TRUE; + } + + // not processed + return FALSE; +} + +// ---------------------------------------------------------------------------- +// colour setting for the rich edit controls +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::SetBackgroundColour(const wxColour& colour) +{ + if ( !wxTextCtrlBase::SetBackgroundColour(colour) ) + { + // colour didn't really change + return FALSE; + } + + if ( IsRich() ) + { + // rich edit doesn't use WM_CTLCOLOR, hence we need to send + // EM_SETBKGNDCOLOR additionally + ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour)); + } + + return TRUE; +} + +bool wxTextCtrl::SetForegroundColour(const wxColour& colour) +{ + if ( !wxTextCtrlBase::SetForegroundColour(colour) ) + { + // colour didn't really change + return FALSE; + } + + if ( IsRich() ) + { + // change the colour of everything + CHARFORMAT cf; + wxZeroMemory(cf); + cf.cbSize = sizeof(cf); + cf.dwMask = CFM_COLOR; + cf.crTextColor = wxColourToRGB(colour); + ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf); + } + + return TRUE; +} + +// ---------------------------------------------------------------------------- +// styling support for rich edit controls +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) +{ + if ( !IsRich() ) + { + // can't do it with normal text control + return FALSE; + } + + // the richedit 1.0 doesn't handle setting background colour, so don't + // even try to do anything if it's the only thing we want to change + if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() ) + { + // nothing to do: return TRUE if there was really nothing to do and + // FALSE if we failed to set bg colour + return !style.HasBackgroundColour(); + } + + // order the range if needed + if ( start > end ) + { + long tmp = start; + start = end; + end = tmp; + } + + // we can only change the format of the selection, so select the range we + // want and restore the old selection later + long startOld, endOld; + GetSelection(&startOld, &endOld); + + // but do we really have to change the selection? + bool changeSel = start != startOld || end != endOld; + + if ( changeSel ) + { + DoSetSelection(start, end, FALSE /* don't scroll caret into view */); + } + + // initialize CHARFORMAT struct +#if wxUSE_RICHEDIT2 + CHARFORMAT2 cf; +#else + CHARFORMAT cf; +#endif + + wxZeroMemory(cf); + + // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple + // CHARFORMAT in that case +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit == 1 ) + { + // this is the only thing the control is going to grok + cf.cbSize = sizeof(CHARFORMAT); + } + else +#endif + { + // CHARFORMAT or CHARFORMAT2 + cf.cbSize = sizeof(cf); + } + + 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; + + // fill in data from LOGFONT but recalculate lfHeight because we need + // the real height in twips and not the negative number which + // wxFillLogFont() returns (this is correct in general and works with + // the Windows font mapper, but not here) + LOGFONT lf; + wxFillLogFont(&lf, &style.GetFont()); + cf.yHeight = 20*style.GetFont().GetPointSize(); // 1 pt = 20 twips + cf.bCharSet = lf.lfCharSet; + cf.bPitchAndFamily = lf.lfPitchAndFamily; + wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) ); + + // also deal with underline/italic/bold attributes: note that we must + // always set CFM_ITALIC &c bits in dwMask, even if we don't set the + // style to allow clearing it + if ( lf.lfItalic ) + { + cf.dwEffects |= CFE_ITALIC; + } + + if ( lf.lfWeight == FW_BOLD ) + { + cf.dwEffects |= CFE_BOLD; + } + + if ( lf.lfUnderline ) + { + cf.dwEffects |= CFE_UNDERLINE; + } + + // strikeout fonts are not supported by wxWindows + } + + if ( style.HasTextColour() ) + { + cf.dwMask |= CFM_COLOR; + cf.crTextColor = wxColourToRGB(style.GetTextColour()); + } + +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit != 1 && style.HasBackgroundColour() ) + { + cf.dwMask |= CFM_BACKCOLOR; + cf.crBackColor = wxColourToRGB(style.GetBackgroundColour()); + } +#endif // wxUSE_RICHEDIT2 + + // do format the selection + bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, + SCF_SELECTION, (LPARAM)&cf) != 0; + if ( !ok ) + { + wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed")); + } + + if ( changeSel ) + { + // restore the original selection + DoSetSelection(startOld, endOld, FALSE); + } + + return ok; +} + +// ---------------------------------------------------------------------------- +// wxRichEditModule +// ---------------------------------------------------------------------------- + +bool wxRichEditModule::OnInit() +{ + // don't do anything - we will load it when needed + return TRUE; +} + +void wxRichEditModule::OnExit() +{ + for ( int i = 0; i < WXSIZEOF(ms_hRichEdit); i++ ) + { + if ( ms_hRichEdit[i] ) + { + ::FreeLibrary(ms_hRichEdit[i]); + } + } +} + +/* static */ +bool wxRichEditModule::Load(int version) +{ + // we don't support loading richedit 3.0 as I don't know how to distinguish + // it from 2.0 anyhow + wxCHECK_MSG( version == 1 || version == 2, FALSE, + _T("incorrect richedit control version requested") ); + + // make it the index in the array + version--; + + if ( ms_hRichEdit[version] == (HINSTANCE)-1 ) + { + // we had already tried to load it and failed + return FALSE; + } + + if ( ms_hRichEdit[version] ) + { + // we've already got this one + return TRUE; + } + + wxString dllname = version ? _T("riched20") : _T("riched32"); + dllname += _T(".dll"); + + ms_hRichEdit[version] = ::LoadLibrary(dllname); + + if ( !ms_hRichEdit[version] ) + { + wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str()); + + ms_hRichEdit[version] = (HINSTANCE)-1; + + return FALSE; + } + + return TRUE; +} + +#endif // wxUSE_RICHEDIT + +#endif // wxUSE_TEXTCTRL