X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2c738dd87ac62d3283c45f9eeac2341326b4d7dd..e2c922f53f6a8f08e8a82817c75981822dbe9ca1:/src/msw/textctrl.cpp diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index 5cc8e00a82..7dd6a84fcf 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -1,19 +1,19 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: textctrl.cpp +// Name: msw/textctrl.cpp // Purpose: wxTextCtrl // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) Julian Smart +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "textctrl.h" #endif @@ -28,16 +28,22 @@ #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" + #include "wx/menu.h" #endif +#include "wx/module.h" + #if wxUSE_CLIPBOARD - #include "wx/app.h" #include "wx/clipbrd.h" #endif @@ -46,47 +52,159 @@ #include #include "wx/msw/private.h" +#include "wx/msw/winundef.h" #include #include -#include -#if wxUSE_IOSTREAMH -# include -#else -# include +#ifndef __WXWINCE__ +#include #endif -#if wxUSE_RICHEDIT && (!defined(__GNUWIN32__) || defined(wxUSE_NORLANDER_HEADERS)) +#if wxUSE_RICHEDIT + +// old mingw32 has richedit stuff directly in windows.h and doesn't have +// richedit.h at all +#if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__) #include #endif -#if !USE_SHARED_LIBRARY +#include "wx/msw/missing.h" + +#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 // ---------------------------------------------------------------------------- +#if wxUSE_EXTENDED_RTTI +WX_DEFINE_FLAGS( wxTextCtrlStyle ) + +wxBEGIN_FLAGS( wxTextCtrlStyle ) + // 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(wxTE_PROCESS_ENTER) + wxFLAGS_MEMBER(wxTE_PROCESS_TAB) + wxFLAGS_MEMBER(wxTE_MULTILINE) + wxFLAGS_MEMBER(wxTE_PASSWORD) + wxFLAGS_MEMBER(wxTE_READONLY) + wxFLAGS_MEMBER(wxHSCROLL) + wxFLAGS_MEMBER(wxTE_RICH) + wxFLAGS_MEMBER(wxTE_RICH2) + wxFLAGS_MEMBER(wxTE_AUTO_URL) + wxFLAGS_MEMBER(wxTE_NOHIDESEL) + wxFLAGS_MEMBER(wxTE_LEFT) + wxFLAGS_MEMBER(wxTE_CENTRE) + wxFLAGS_MEMBER(wxTE_RIGHT) + wxFLAGS_MEMBER(wxTE_DONTWRAP) + wxFLAGS_MEMBER(wxTE_LINEWRAP) + wxFLAGS_MEMBER(wxTE_WORDWRAP) + +wxEND_FLAGS( wxTextCtrlStyle ) + +IMPLEMENT_DYNAMIC_CLASS_XTI(wxTextCtrl, wxControl,"wx/textctrl.h") + +wxBEGIN_PROPERTIES_TABLE(wxTextCtrl) + wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent ) + wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent ) + + wxPROPERTY( Font , wxFont , SetFont , GetFont ,, 0 /*flags*/ , wxT("Helpstring") , wxT("group") ) + wxPROPERTY( Value , wxString , SetValue, GetValue, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY_FLAGS( WindowStyle , wxTextCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style +wxEND_PROPERTIES_TABLE() + +wxBEGIN_HANDLERS_TABLE(wxTextCtrl) +wxEND_HANDLERS_TABLE() + +wxCONSTRUCTOR_6( wxTextCtrl , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size , long , WindowStyle) +#else IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl) +#endif + BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) EVT_CHAR(wxTextCtrl::OnChar) EVT_DROP_FILES(wxTextCtrl::OnDropFiles) +#if wxUSE_RICHEDIT + EVT_RIGHT_UP(wxTextCtrl::OnRightClick) +#endif + EVT_MENU(wxID_CUT, wxTextCtrl::OnCut) EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy) EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste) EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo) EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo) + EVT_MENU(wxID_CLEAR, wxTextCtrl::OnDelete) + EVT_MENU(wxID_SELECTALL, wxTextCtrl::OnSelectAll) EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut) EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy) EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste) EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo) EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo) -END_EVENT_TABLE() + EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete) + EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll) +#ifdef __WIN16__ + EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground) +#endif -#endif // USE_SHARED_LIBRARY + EVT_SET_FOCUS(wxTextCtrl::OnSetFocus) +END_EVENT_TABLE() // ============================================================================ // implementation @@ -96,11 +214,24 @@ END_EVENT_TABLE() // creation // ---------------------------------------------------------------------------- -wxTextCtrl::wxTextCtrl() +void wxTextCtrl::Init() { #if wxUSE_RICHEDIT - m_isRich = FALSE; -#endif + m_verRichEdit = 0; +#endif // wxUSE_RICHEDIT + + m_privateContextMenu = NULL; + m_suppressNextUpdate = FALSE; + m_isNativeCaretShown = true; +} + +wxTextCtrl::~wxTextCtrl() +{ + if (m_privateContextMenu) + { + delete m_privateContextMenu; + m_privateContextMenu = NULL; + } } bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, @@ -115,132 +246,132 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, if ( !CreateBase(parent, id, pos, size, style, validator, name) ) return FALSE; - 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; - if ( m_windowStyle & wxTE_MULTILINE ) - { - wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), - _T("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 - msStyle |= ES_AUTOHSCROLL; - - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); - - if (m_windowStyle & wxTE_READONLY) - msStyle |= ES_READONLY; - - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); - if (m_windowStyle & wxTE_PASSWORD) // hidden input - 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; + // translate wxWin style flags to MSW ones + WXDWORD msStyle = MSWGetCreateWindowFlags(); // do create the control - either an EDIT or RICHEDIT - const wxChar *windowClass = _T("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 = _T("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, _T("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 - SubclassWin(GetHWND()); + 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; + } + } + } + + // have we managed to load any richedit version? + if ( !s_errorGiven ) + { + 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 - // set font, position, size and initial value - wxFont& fontParent = parent->GetFont(); - if ( fontParent.Ok() ) + // 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); + // enable the events we're interested in: we want to get EN_CHANGE as + // for the normal controls + LPARAM mask = ENM_CHANGE; + + if ( GetRichVersion() == 1 ) + { + // we also need EN_MSGFILTER for richedit 1.0 for the reasons + // explained in its handler + mask |= ENM_MOUSEEVENTS; + } + else if ( m_windowStyle & wxTE_AUTO_URL ) + { + mask |= ENM_LINK; + + ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0); + } + + ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask); } -#endif - - SetSize(pos.x, pos.y, size.x, size.y); +#endif // wxUSE_RICHEDIT return TRUE; } @@ -248,708 +379,2165 @@ 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, _T("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; + if (style & ES_CENTER) + m_windowStyle |= wxTE_CENTRE; + if (style & ES_RIGHT) + m_windowStyle |= wxTE_RIGHT; } -void wxTextCtrl::SetupColours() +WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const { - // FIXME why is bg colour not inherited from parent? - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetForegroundColour()); -} + long msStyle = wxControl::MSWGetStyle(style, exstyle); -// ---------------------------------------------------------------------------- -// set/get the controls text -// ---------------------------------------------------------------------------- + // styles which we alaways add by default + if ( style & wxTE_MULTILINE ) + { + wxASSERT_MSG( !(style & wxTE_PROCESS_ENTER), + wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") ); -wxString wxTextCtrl::GetValue() const -{ - return wxGetWindowText(GetHWND()); -} + msStyle |= ES_MULTILINE | ES_WANTRETURN; + if ( !(style & wxTE_NO_VSCROLL) ) + { + // always adjust the vertical scrollbar automatically if we have it + msStyle |= WS_VSCROLL | ES_AUTOVSCROLL; -void wxTextCtrl::SetValue(const wxString& value) -{ - wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); +#if wxUSE_RICHEDIT + // we have to use this style for the rich edit controls because + // without it the vertical scrollbar never appears at all in + // richedit 3.0 because of our ECO_NOHIDESEL hack (search for it) + if ( style & wxTE_RICH2 ) + { + msStyle |= ES_DISABLENOSCROLL; + } +#endif // wxUSE_RICHEDIT + } - SetWindowText(GetHwnd(), valueDos); + style |= wxTE_PROCESS_ENTER; + } + else // !multiline + { + // there is really no reason to not have this style for single line + // text controls + msStyle |= ES_AUTOHSCROLL; + } - AdjustSpaceLimit(); -} + // note that wxTE_DONTWRAP is the same as wxHSCROLL so if we have a horz + // scrollbar, there is no wrapping -- which makes sense + if ( style & wxTE_DONTWRAP ) + { + // automatically scroll the control horizontally as necessary + msStyle |= WS_HSCROLL; + } -void wxTextCtrl::WriteText(const wxString& value) -{ - wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + if ( style & wxTE_READONLY ) + msStyle |= ES_READONLY; - SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); + if ( style & wxTE_PASSWORD ) + msStyle |= ES_PASSWORD; - AdjustSpaceLimit(); -} + if ( style & wxTE_NOHIDESEL ) + msStyle |= ES_NOHIDESEL; -void wxTextCtrl::AppendText(const wxString& text) -{ - SetInsertionPointEnd(); - WriteText(text); + // note that we can't do do "& wxTE_LEFT" as wxTE_LEFT == 0 + if ( style & wxTE_CENTRE ) + msStyle |= ES_CENTER; + else if ( style & wxTE_RIGHT ) + msStyle |= ES_RIGHT; + else + msStyle |= ES_LEFT; // ES_LEFT is 0 as well but for consistency... + + return msStyle; } -void wxTextCtrl::Clear() +void wxTextCtrl::SetWindowStyleFlag(long style) { - SetWindowText(GetHwnd(), _T("")); +#if wxUSE_RICHEDIT + // we have to deal with some styles separately because they can't be + // changed by simply calling SetWindowLong(GWL_STYLE) but can be changed + // using richedit-specific EM_SETOPTIONS + if ( IsRich() && + ((style & wxTE_NOHIDESEL) != (GetWindowStyle() & wxTE_NOHIDESEL)) ) + { + bool set = (style & wxTE_NOHIDESEL) != 0; + + ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND, + set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL); + } +#endif // wxUSE_RICHEDIT + + wxControl::SetWindowStyleFlag(style); } // ---------------------------------------------------------------------------- -// Clipboard operations +// set/get the controls text // ---------------------------------------------------------------------------- -void wxTextCtrl::Copy() +wxString wxTextCtrl::GetValue() const { - if (CanCopy()) - { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_COPY, 0, 0L); - } + // range 0..-1 is special for GetRange() and means to retrieve all text + return GetRange(0, -1); } -void wxTextCtrl::Cut() +wxString wxTextCtrl::GetRange(long from, long to) const { - if (CanCut()) + wxString str; + + if ( from >= to && to != -1 ) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_CUT, 0, 0L); + // nothing to retrieve + return str; } -} -void wxTextCtrl::Paste() -{ - if (CanPaste()) +#if wxUSE_RICHEDIT + if ( IsRich() ) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_PASTE, 0, 0L); - } -} + int len = GetWindowTextLength(GetHwnd()); + if ( len > from ) + { + if ( to == -1 ) + to = len; + +#if !wxUSE_UNICODE + // we must use EM_STREAMOUT if we don't want to lose all characters + // not representable in the current character set (EM_GETTEXTRANGE + // simply replaces them with question marks...) + if ( GetRichVersion() > 1 ) + { + // we must have some encoding, otherwise any 8bit chars in the + // control are simply *lost* (replaced by '?') + wxFontEncoding encoding = wxFONTENCODING_SYSTEM; + + wxFont font = m_defaultStyle.GetFont(); + if ( !font.Ok() ) + font = GetFont(); + + if ( font.Ok() ) + { + encoding = font.GetEncoding(); + } + + if ( encoding == wxFONTENCODING_SYSTEM ) + { + encoding = wxLocale::GetSystemEncoding(); + } + + if ( encoding == wxFONTENCODING_SYSTEM ) + { + encoding = wxFONTENCODING_ISO8859_1; + } + + str = StreamOut(encoding); + + if ( !str.empty() ) + { + // we have to manually extract the required part, luckily + // this is easy in this case as EOL characters in str are + // just LFs because we remove CRs in wxRichEditStreamOut + str = str.Mid(from, to - from); + } + } -bool wxTextCtrl::CanCopy() const -{ - // Can copy if there's a selection - long from, to; - GetSelection(& from, & to); - return (from != to); -} + // StreamOut() wasn't used or failed, try to do it in normal way + if ( str.empty() ) +#endif // !wxUSE_UNICODE + { + // alloc one extra WORD as needed by the control + wxStringBuffer tmp(str, ++len); + wxChar *p = tmp; + + TEXTRANGE textRange; + textRange.chrg.cpMin = from; + textRange.chrg.cpMax = 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'); + } + } + } -bool wxTextCtrl::CanCut() const -{ - // Can cut if there's a selection - long from, to; - GetSelection(& from, & to); - return (from != to); + 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; } -bool wxTextCtrl::CanPaste() const +void wxTextCtrl::SetValue(const wxString& value) { -#if wxUSE_RICHEDIT - if (m_isRich) + // 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()) ) { - int dataFormat = 0; // 0 == any format - return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0); + DoWriteText(value, FALSE /* not selection only */); + + // for compatibility, don't move the cursor when doing SetValue() + SetInsertionPoint(0); } -#endif - if (!IsEditable()) - return FALSE; - - // Standard edit control: check for straight text on clipboard - bool isTextAvailable = FALSE; - if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) + else // same text { - isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); - ::CloseClipboard(); + // still send an event for consistency + SendUpdateEvent(); } - return isTextAvailable; + // we should reset the modified flag even if the value didn't really change + + // mark the control as being not dirty - we changed its text, not the + // user + DiscardEdits(); } -// ---------------------------------------------------------------------------- -// Accessors -// ---------------------------------------------------------------------------- +#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU) -void wxTextCtrl::SetEditable(bool editable) -{ - HWND hWnd = GetHwnd(); - SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); -} +// TODO: using memcpy() would improve performance a lot for big amounts of text -void wxTextCtrl::SetInsertionPoint(long pos) +DWORD CALLBACK +wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb) { - 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 + *pcb = 0; + + const wchar_t ** const ppws = (const wchar_t **)dwCookie; + + wchar_t *wbuf = (wchar_t *)buf; + const wchar_t *wpc = *ppws; + while ( cb && *wpc ) { - SendMessage(hWnd, EM_SETSEL, pos, pos); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + *wbuf++ = *wpc++; + + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); } -#else // Win16 - SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos)); -#endif // Win32/16 - static const char *nothing = ""; - SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); + *ppws = wpc; + + return 0; } -void wxTextCtrl::SetInsertionPointEnd() +// helper struct used to pass parameters from wxTextCtrl to wxRichEditStreamOut +struct wxStreamOutData { - long pos = GetLastPosition(); - SetInsertionPoint(pos); -} + wchar_t *wpc; + size_t len; +}; -long wxTextCtrl::GetInsertionPoint() const +DWORD CALLBACK +wxRichEditStreamOut(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb) { -#if wxUSE_RICHEDIT - if (m_isRich) + *pcb = 0; + + wxStreamOutData *data = (wxStreamOutData *)dwCookie; + + const wchar_t *wbuf = (const wchar_t *)buf; + wchar_t *wpc = data->wpc; + while ( cb ) { - CHARRANGE range; - range.cpMin = 0; - range.cpMax = 0; - SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); - return range.cpMin; + wchar_t wch = *wbuf++; + + // turn "\r\n" into "\n" on the fly + if ( wch != L'\r' ) + *wpc++ = wch; + else + data->len--; + + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); } -#endif - DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); - return Pos & 0xFFFF; + data->wpc = wpc; + + return 0; } -long wxTextCtrl::GetLastPosition() const + +#if wxUSE_UNICODE_MSLU + #define UNUSED_IF_MSLU(param) +#else + #define UNUSED_IF_MSLU(param) param +#endif + +bool +wxTextCtrl::StreamIn(const wxString& value, + wxFontEncoding UNUSED_IF_MSLU(encoding), + bool selectionOnly) { - HWND hWnd = GetHwnd(); +#if wxUSE_UNICODE_MSLU + const wchar_t *wpc = value.c_str(); +#else // !wxUSE_UNICODE_MSLU + wxCSConv conv(encoding); - // Will always return a number > 0 (according to docs) - int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); + const size_t len = conv.MB2WC(NULL, value, value.length()); - // This gets the char index for the _beginning_ of the last line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); +#if wxUSE_WCHAR_T + wxWCharBuffer wchBuf(len); + wchar_t *wpc = wchBuf.data(); +#else + wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t)); + wchar_t *wpc = wchBuf; +#endif - // 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); + conv.MB2WC(wpc, value, value.length()); +#endif // wxUSE_UNICODE_MSLU - return (long)(charIndex + lineLength); -} + // finally, stream it in the control + EDITSTREAM eds; + wxZeroMemory(eds); + eds.dwCookie = (DWORD)&wpc; + // the cast below is needed for broken (very) old mingw32 headers + eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn; -// If the return values from and to are the same, there is no -// selection. -void wxTextCtrl::GetSelection(long* from, long* to) const -{ -#if wxUSE_RICHEDIT - if (m_isRich) + // we're going to receive 2 EN_CHANGE notifications if we got any selection + // (same problem as in DoWriteText()) + if ( selectionOnly && HasSelection() ) { - CHARRANGE charRange; - ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange); + // so suppress one of them + m_suppressNextUpdate = TRUE; + } - *from = charRange.cpMin; - *to = charRange.cpMax; + ::SendMessage(GetHwnd(), EM_STREAMIN, + SF_TEXT | + SF_UNICODE | + (selectionOnly ? SFF_SELECTION : 0), + (LPARAM)&eds); - return; + if ( eds.dwError ) + { + wxLogLastError(_T("EM_STREAMIN")); } -#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); +#if !wxUSE_WCHAR_T + free(wchBuf); +#endif // !wxUSE_WCHAR_T - *from = dwStart; - *to = dwEnd; + return TRUE; } -bool wxTextCtrl::IsEditable() const +#if !wxUSE_UNICODE_MSLU + +wxString +wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const { - long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); + wxString out; - return ((style & ES_READONLY) == 0); -} + const int len = GetWindowTextLength(GetHwnd()); -// ---------------------------------------------------------------------------- -// Editing -// ---------------------------------------------------------------------------- +#if wxUSE_WCHAR_T + wxWCharBuffer wchBuf(len); + wchar_t *wpc = wchBuf.data(); +#else + wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t)); + wchar_t *wpc = wchBuf; +#endif -void wxTextCtrl::Replace(long from, long to, const wxString& value) + wxStreamOutData data; + data.wpc = wpc; + data.len = len; + + EDITSTREAM eds; + wxZeroMemory(eds); + eds.dwCookie = (DWORD)&data; + eds.pfnCallback = wxRichEditStreamOut; + + ::SendMessage + ( + GetHwnd(), + EM_STREAMOUT, + SF_TEXT | SF_UNICODE | (selectionOnly ? SFF_SELECTION : 0), + (LPARAM)&eds + ); + + if ( eds.dwError ) + { + wxLogLastError(_T("EM_STREAMOUT")); + } + else // streamed out ok + { + // NUL-terminate the string because its length could have been + // decreased by wxRichEditStreamOut + *(wchBuf.data() + data.len) = L'\0'; + + // now convert to the given encoding (this is a possibly lossful + // conversion but what else can we do) + wxCSConv conv(encoding); + size_t lenNeeded = conv.WC2MB(NULL, wchBuf, 0); + if ( lenNeeded++ ) + { + conv.WC2MB(wxStringBuffer(out, lenNeeded), wchBuf, lenNeeded); + } + } + +#if !wxUSE_WCHAR_T + free(wchBuf); +#endif // !wxUSE_WCHAR_T + + return out; +} + +#endif // !wxUSE_UNICODE_MSLU + +#endif // wxUSE_RICHEDIT + +void wxTextCtrl::WriteText(const wxString& value) { -#if wxUSE_CLIPBOARD - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; + DoWriteText(value); +} - // 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); +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 ( wxUsingUnicowsDll() && 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 ) + { + // 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 + done = StreamIn(valueDos, encoding, selectionOnly); + } + } + } +#endif // !wxUSE_UNICODE + } - // Now replace with 'value', by pasting. - wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0); + if ( !done ) +#endif // wxUSE_RICHEDIT + { + // in some cases we get 2 EN_CHANGE notifications after the SendMessage + // call below which is confusing for the client code and so should be + // avoided + // + // these cases are: (a) plain EDIT controls if EM_REPLACESEL is used + // and there is a non empty selection currently and (b) rich text + // controls in any case + if ( +#if wxUSE_RICHEDIT + IsRich() || +#endif // wxUSE_RICHEDIT + (selectionOnly && HasSelection()) ) + { + m_suppressNextUpdate = TRUE; + } - // 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 + ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT, + 0, (LPARAM)valueDos.c_str()); + + // OTOH, non rich text controls don't generate any events at all when + // we use WM_SETTEXT -- have to emulate them here + if ( !selectionOnly +#if wxUSE_RICHEDIT + && !IsRich() +#endif // wxUSE_RICHEDIT + ) + { + // Windows already sends an update event for single-line + // controls. + if ( m_windowStyle & wxTE_MULTILINE ) + SendUpdateEvent(); + } + } + + AdjustSpaceLimit(); } -void wxTextCtrl::Remove(long from, long to) +void wxTextCtrl::AppendText(const wxString& text) { - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; + SetInsertionPointEnd(); - // 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); + WriteText(text); + +#if wxUSE_RICHEDIT + if ( IsMultiLine() && GetRichVersion() > 1 ) + { + // setting the caret to the end and showing it simply doesn't work for + // RichEdit 2.0 -- force it to still do what we want + ::SendMessage(GetHwnd(), EM_LINESCROLL, 0, GetNumberOfLines()); + } +#endif // wxUSE_RICHEDIT } -void wxTextCtrl::SetSelection(long from, long to) +void wxTextCtrl::Clear() { - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; + ::SetWindowText(GetHwnd(), wxEmptyString); - // 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 wxUSE_RICHEDIT + if ( !IsRich() ) +#endif // wxUSE_RICHEDIT { - fromChar = 0; - toChar = -1; + // rich edit controls send EN_UPDATE from WM_SETTEXT handler themselves + // but the normal ones don't -- make Clear() behaviour consistent by + // always sending this event + + // Windows already sends an update event for single-line + // controls. + if ( m_windowStyle & wxTE_MULTILINE ) + SendUpdateEvent(); } +} #ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); -#else - // WPARAM is 0: selection is scrolled into view - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); -#endif + +bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event) +{ + SetFocus(); + + size_t lenOld = GetValue().length(); + + wxUint32 code = event.GetRawKeyCode(); + ::keybd_event(code, 0, 0 /* key press */, 0); + ::keybd_event(code, 0, KEYEVENTF_KEYUP, 0); + + // assume that any alphanumeric key changes the total number of characters + // in the control - this should work in 99% of cases + return GetValue().length() != lenOld; } -bool wxTextCtrl::LoadFile(const wxString& file) +#endif // __WIN32__ + +// ---------------------------------------------------------------------------- +// Clipboard operations +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Copy() { - if ( wxTextCtrlBase::LoadFile(file) ) + if (CanCopy()) { - // update the size limit if needed - AdjustSpaceLimit(); + ::SendMessage(GetHwnd(), WM_COPY, 0, 0L); + } +} - return TRUE; +void wxTextCtrl::Cut() +{ + if (CanCut()) + { + ::SendMessage(GetHwnd(), WM_CUT, 0, 0L); } +} - return FALSE; +void wxTextCtrl::Paste() +{ + if (CanPaste()) + { + ::SendMessage(GetHwnd(), WM_PASTE, 0, 0L); + } } -bool wxTextCtrl::IsModified() const +bool wxTextCtrl::HasSelection() const { - return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0); + long from, to; + GetSelection(&from, &to); + return from != to; } -// Makes 'unmodified' -void wxTextCtrl::DiscardEdits() +bool wxTextCtrl::CanCopy() const { - SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); + // Can copy if there's a selection + return HasSelection(); } -int wxTextCtrl::GetNumberOfLines() const +bool wxTextCtrl::CanCut() const { - return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); + return CanCopy() && IsEditable(); } -long wxTextCtrl::XYToPosition(long x, long y) const +bool wxTextCtrl::CanPaste() const { - HWND hWnd = GetHwnd(); + if ( !IsEditable() ) + return FALSE; - // 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); +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + UINT cf = 0; // 0 == any format + + return ::SendMessage(GetHwnd(), EM_CANPASTE, cf, 0) != 0; + } +#endif // wxUSE_RICHEDIT + + // 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 wxTextCtrl::PositionToXY(long pos, long *x, long *y) const +// ---------------------------------------------------------------------------- +// Accessors +// ---------------------------------------------------------------------------- + +void wxTextCtrl::SetEditable(bool editable) { HWND hWnd = GetHwnd(); + SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); +} + +void wxTextCtrl::SetInsertionPoint(long pos) +{ + DoSetSelection(pos, pos); +} + +void wxTextCtrl::SetInsertionPointEnd() +{ + // we must not do anything if the caret is already there because calling + // SetInsertionPoint() thaws the controls if Freeze() had been called even + // if it doesn't actually move the caret anywhere and so the simple fact of + // doing it results in horrible flicker when appending big amounts of text + // to the control in a few chunks (see DoAddText() test in the text sample) + if ( GetInsertionPoint() == GetLastPosition() ) + return; + + long pos; - // This gets the line number containing the character - int lineNo; #if wxUSE_RICHEDIT - if ( m_isRich ) + if ( m_verRichEdit == 1 ) { - lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); + // we don't have to waste time calling GetLastPosition() in this case + pos = -1; } - else + else // !RichEdit 1.0 #endif // wxUSE_RICHEDIT - lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); + { + pos = GetLastPosition(); + } - if ( lineNo == -1 ) + SetInsertionPoint(pos); +} + +long wxTextCtrl::GetInsertionPoint() const +{ +#if wxUSE_RICHEDIT + if ( IsRich() ) { - // no such line - return FALSE; + CHARRANGE range; + range.cpMin = 0; + range.cpMax = 0; + SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); + return range.cpMin; } +#endif // wxUSE_RICHEDIT - // This gets the char index for the _beginning_ of this line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); - if ( charIndex == -1 ) + DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); + return Pos & 0xFFFF; +} + +long wxTextCtrl::GetLastPosition() const +{ + int numLines = GetNumberOfLines(); + long posStartLastLine = XYToPosition(0, numLines - 1); + + long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine); + + return posStartLastLine + lenLastLine; +} + +// If the return values from and to are the same, there is no +// selection. +void wxTextCtrl::GetSelection(long* from, long* to) const +{ +#if wxUSE_RICHEDIT + if ( IsRich() ) { - return FALSE; + CHARRANGE charRange; + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange); + + *from = charRange.cpMin; + *to = charRange.cpMax; } + else +#endif // !wxUSE_RICHEDIT + { + DWORD dwStart, dwEnd; + ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd); - // The X position must therefore be the different between pos and charIndex - if ( x ) - *x = (long)(pos - charIndex); - if ( y ) - *y = (long)lineNo; + *from = dwStart; + *to = dwEnd; + } +} - return TRUE; +bool wxTextCtrl::IsEditable() const +{ + // strangely enough, we may be called before the control is created: our + // own Create() calls MSWGetStyle() which calls AcceptsFocus() which calls + // us + if ( !m_hWnd ) + return TRUE; + + long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); + + return (style & ES_READONLY) == 0; } -void wxTextCtrl::ShowPosition(long pos) +// ---------------------------------------------------------------------------- +// selection +// ---------------------------------------------------------------------------- + +void wxTextCtrl::SetSelection(long from, long 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) ) + { + from = 0; + to = -1; + } + + DoSetSelection(from, to); +} + +void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret) { HWND hWnd = GetHwnd(); - // To scroll to a position, we pass the number of lines and characters - // to scroll *by*. This means that we need to: - // (1) Find the line position of the current line. - // (2) Find the line position of pos. - // (3) Scroll by (pos - current). - // For now, ignore the horizontal scrolling. +#ifdef __WIN32__ +#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); + } - // Is this where scrolling is relative to - the line containing the caret? - // Or is the first visible line??? Try first visible line. -// int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L); + if ( scrollCaret ) + { +#if wxUSE_RICHEDIT + // richedit 3.0 (i.e. the version living in riched20.dll distributed + // with Windows 2000 and beyond) doesn't honour EM_SCROLLCARET when + // emulating richedit 2.0 unless the control has focus or ECO_NOHIDESEL + // option is set (but it does work ok in richedit 1.0 mode...) + // + // so to make it work we either need to give focus to it here which + // will probably create many problems (dummy focus events; window + // containing the text control being brought to foreground + // unexpectedly; ...) or to temporarily set ECO_NOHIDESEL which may + // create other problems too -- and in fact it does because if we turn + // on/off this style while appending the text to the control, the + // vertical scrollbar never appears in it even if we append tons of + // text and to work around this the only solution I found was to use + // ES_DISABLENOSCROLL + // + // this is very ugly but I don't see any other way to make this work + if ( GetRichVersion() > 1 ) + { + if ( !HasFlag(wxTE_NOHIDESEL) ) + { + ::SendMessage(GetHwnd(), EM_SETOPTIONS, + ECOOP_OR, ECO_NOHIDESEL); + } + //else: everything is already ok + } +#endif // wxUSE_RICHEDIT - int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L); + SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); - int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L); +#if wxUSE_RICHEDIT + // restore ECO_NOHIDESEL if we changed it + if ( GetRichVersion() > 1 && !HasFlag(wxTE_NOHIDESEL) ) + { + ::SendMessage(GetHwnd(), EM_SETOPTIONS, + ECOOP_AND, ~ECO_NOHIDESEL); + } +#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 +} - int linesToScroll = specifiedLineLineNo - currentLineLineNo; +// ---------------------------------------------------------------------------- +// Editing +// ---------------------------------------------------------------------------- - if (linesToScroll != 0) - (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll); +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 */); + + DoWriteText(value, TRUE /* selection only */); +} + +void wxTextCtrl::Remove(long from, long to) +{ + Replace(from, to, wxEmptyString); +} + +bool wxTextCtrl::LoadFile(const wxString& file) +{ + if ( wxTextCtrlBase::LoadFile(file) ) + { + // update the size limit if needed + AdjustSpaceLimit(); + + return TRUE; + } + + return FALSE; +} + +bool wxTextCtrl::IsModified() const +{ + return SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0; +} + +void wxTextCtrl::MarkDirty() +{ + SendMessage(GetHwnd(), EM_SETMODIFY, TRUE, 0L); +} + +void wxTextCtrl::DiscardEdits() +{ + SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); +} + +int wxTextCtrl::GetNumberOfLines() const +{ + return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); +} + +long wxTextCtrl::XYToPosition(long x, long y) const +{ + // This gets the char index for the _beginning_ of this line + long charIndex = SendMessage(GetHwnd(), EM_LINEINDEX, (WPARAM)y, (LPARAM)0); + + return charIndex + x; +} + +bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const +{ + HWND hWnd = GetHwnd(); + + // This gets the line number containing the character + long lineNo; +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + lineNo = SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); + } + else +#endif // wxUSE_RICHEDIT + { + lineNo = SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); + } + + if ( lineNo == -1 ) + { + // no such line + return FALSE; + } + + // This gets the char index for the _beginning_ of this line + long charIndex = SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); + if ( charIndex == -1 ) + { + return FALSE; + } + + // The X position must therefore be the different between pos and charIndex + if ( x ) + *x = pos - charIndex; + if ( y ) + *y = lineNo; + + return TRUE; +} + +void wxTextCtrl::ShowPosition(long pos) +{ + HWND hWnd = GetHwnd(); + + // To scroll to a position, we pass the number of lines and characters + // to scroll *by*. This means that we need to: + // (1) Find the line position of the current line. + // (2) Find the line position of pos. + // (3) Scroll by (pos - current). + // For now, ignore the horizontal scrolling. + + // Is this where scrolling is relative to - the line containing the caret? + // Or is the first visible line??? Try first visible line. +// int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L); + + int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L); + + int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L); + + int linesToScroll = specifiedLineLineNo - currentLineLineNo; + + if (linesToScroll != 0) + (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 pos = XYToPosition(0, lineNo); + + return GetLengthOfLineContainingPos(pos); +} + +wxString wxTextCtrl::GetLineText(long lineNo) const +{ + size_t len = (size_t)GetLineLength(lineNo) + 1; + + // there must be at least enough place for the length WORD in the + // buffer + len += sizeof(WORD); + + wxString str; + { + wxStringBufferLength tmp(str, len); + wxChar *buf = tmp; + + *(WORD *)buf = (WORD)len; + len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); + +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + // remove the '\r' returned by the rich edit control, the user code + // should never see it + if ( buf[len - 2] == _T('\r') && buf[len - 1] == _T('\n') ) + { + buf[len - 2] = _T('\n'); + len--; + } + } +#endif // wxUSE_RICHEDIT + + // remove the '\n' at the end, if any (this is how this function is + // supposed to work according to the docs) + if ( buf[len - 1] == _T('\n') ) + { + len--; + } + + buf[len] = 0; + tmp.SetLength(len); + } + + return str; +} + +void wxTextCtrl::SetMaxLength(unsigned long len) +{ + ::SendMessage(GetHwnd(), EM_LIMITTEXT, len, 0); +} + +// ---------------------------------------------------------------------------- +// Undo/redo +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Undo() +{ + if (CanUndo()) + { + ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + } +} + +void wxTextCtrl::Redo() +{ + if (CanRedo()) + { + // Same as Undo, since Undo undoes the undo, i.e. a redo. + ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + } +} + +bool wxTextCtrl::CanUndo() const +{ + return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0; +} + +bool wxTextCtrl::CanRedo() const +{ + return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0; +} + +// ---------------------------------------------------------------------------- +// caret handling (Windows only) +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::ShowNativeCaret(bool show) +{ + if ( show != m_isNativeCaretShown ) + { + if ( !(show ? ::ShowCaret(GetHwnd()) : ::HideCaret(GetHwnd())) ) + { + // not an error, may simply indicate that it's not shown/hidden + // yet (i.e. it had been hidden/showh 2 times before) + return false; + } + + m_isNativeCaretShown = show; + } + + return true; +} + +// ---------------------------------------------------------------------------- +// implemenation details +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Command(wxCommandEvent & event) +{ + SetValue(event.GetString()); + ProcessCommand (event); +} + +void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) +{ + // By default, load the first file into the text window. + if (event.GetNumberOfFiles() > 0) + { + LoadFile(event.GetFiles()[0]); + } +} + +// ---------------------------------------------------------------------------- +// kbd input processing +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg) +{ + 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 ) + { + WORD vkey = (WORD) msg->wParam; + if ( (HIWORD(msg->lParam) & KF_ALTDOWN) == KF_ALTDOWN ) + { + if ( vkey == VK_BACK ) + return FALSE; + } + else // no Alt + { + // we want to process some Ctrl-foo and Shift-bar but no key + // combinations without either Ctrl or Shift nor with both of them + // pressed + const int ctrl = wxIsCtrlDown(), + shift = wxIsShiftDown(); + switch ( ctrl + shift ) + { + default: + wxFAIL_MSG( _T("how many modifiers have we got?") ); + // fall through + + case 0: + case 2: + break; + + case 1: + // either Ctrl or Shift pressed + if ( ctrl ) + { + switch ( vkey ) + { + case 'C': + case 'V': + case 'X': + case VK_INSERT: + case VK_DELETE: + case VK_HOME: + case VK_END: + return FALSE; + } + } + else // Shift is pressed + { + if ( vkey == VK_INSERT || vkey == VK_DELETE ) + return FALSE; + } + } + } + } + + return wxControl::MSWShouldPreProcessMessage(pMsg); +} + +void wxTextCtrl::OnChar(wxKeyEvent& event) +{ + switch ( event.GetKeyCode() ) + { + case WXK_RETURN: + if ( !(m_windowStyle & wxTE_MULTILINE) ) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); + InitCommandEvent(event); + event.SetString(GetValue()); + if ( GetEventHandler()->ProcessEvent(event) ) + return; + } + //else: multiline controls need Enter for themselves + + break; + + case WXK_TAB: + // always produce navigation event - even if we process TAB + // 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. + { + wxNavigationKeyEvent eventNav; + eventNav.SetDirection(!event.ShiftDown()); + eventNav.SetWindowChange(event.ControlDown()); + eventNav.SetEventObject(this); + + if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) ) + return; + } + break; + } + + // no, we didn't process it + event.Skip(); +} + +long wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + long lRc = wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam); + + if ( nMsg == WM_GETDLGCODE ) + { + // we always want the chars and the arrows: the arrows for navigation + // and the chars because we want Ctrl-C to work even in a read only + // control + long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; + + if ( IsEditable() ) + { + // we may have several different cases: + // 1. normal case: both TAB and ENTER are used for dlg 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 go + // to the next control + + // the multiline edit control should always get for itself + if ( HasFlag(wxTE_PROCESS_ENTER) || HasFlag(wxTE_MULTILINE) ) + lDlgCode |= DLGC_WANTMESSAGE; + + if ( HasFlag(wxTE_PROCESS_TAB) ) + lDlgCode |= DLGC_WANTTAB; + + lRc |= lDlgCode; + } + else // !editable + { + // NB: use "=", not "|=" as the base class version returns the + // same flags is this state as usual (i.e. including + // DLGC_WANTMESSAGE). This is strange (how does it work in the + // native Win32 apps?) but for now live with it. + lRc = lDlgCode; + } + } + + return lRc; +} + +// ---------------------------------------------------------------------------- +// text control event processing +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::SendUpdateEvent() +{ + // is event reporting suspended? + if ( m_suppressNextUpdate ) + { + // do process the next one + m_suppressNextUpdate = FALSE; + + return FALSE; + } + + wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId()); + InitCommandEvent(event); + event.SetString(GetValue()); + + return ProcessCommand(event); +} + +bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) +{ + switch ( param ) + { + case EN_SETFOCUS: + case EN_KILLFOCUS: + { + wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS + : wxEVT_SET_FOCUS, + m_windowId); + event.SetEventObject(this); + GetEventHandler()->ProcessEvent(event); + } + break; + + case EN_CHANGE: + SendUpdateEvent(); + break; + + case EN_MAXTEXT: + // the text size limit has been hit -- try to increase it + if ( !AdjustSpaceLimit() ) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId); + InitCommandEvent(event); + event.SetString(GetValue()); + ProcessCommand(event); + } + break; + + // the other edit notification messages are not processed + default: + return FALSE; + } + + // processed + return TRUE; +} + +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; + 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 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 ( 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 // !Win16 + + // we changed the limit + return TRUE; +} + +bool wxTextCtrl::AcceptsFocus() const +{ + // we don't want focus if we can't be edited unless we're a multiline + // control because then it might be still nice to get focus from keyboard + // to be able to scroll it without mouse + return (IsEditable() || IsMultiLine()) && wxControl::AcceptsFocus(); +} + +wxSize wxTextCtrl::DoGetBestSize() const +{ + int cx, cy; + wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); + + int wText = DEFAULT_ITEM_WIDTH; + + int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); + if ( m_windowStyle & wxTE_MULTILINE ) + { + hText *= wxMax(GetNumberOfLines(), 5); + } + //else: for single line control everything is ok + + return wxSize(wText, hText); +} + +// ---------------------------------------------------------------------------- +// standard handlers for standard edit menu events +// ---------------------------------------------------------------------------- + +void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event)) +{ + Cut(); +} + +void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event)) +{ + Copy(); +} + +void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event)) +{ + Paste(); +} + +void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event)) +{ + Undo(); +} + +void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event)) +{ + Redo(); +} + +void wxTextCtrl::OnDelete(wxCommandEvent& WXUNUSED(event)) +{ + long from, to; + GetSelection(& from, & to); + if (from != -1 && to != -1) + Remove(from, to); +} + +void wxTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event)) +{ + SetSelection(-1, -1); +} + +void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) +{ + event.Enable( CanCut() ); +} + +void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) +{ + event.Enable( CanCopy() ); +} + +void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) +{ + event.Enable( CanPaste() ); +} + +void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) +{ + event.Enable( CanUndo() ); +} + +void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) +{ + event.Enable( CanRedo() ); +} + +void wxTextCtrl::OnUpdateDelete(wxUpdateUIEvent& event) +{ + long from, to; + GetSelection(& from, & to); + event.Enable(from != -1 && to != -1 && from != to && IsEditable()) ; +} + +void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event) +{ + event.Enable(GetLastPosition() > 0); +} + +void wxTextCtrl::OnRightClick(wxMouseEvent& event) +{ +#if wxUSE_RICHEDIT + if (IsRich()) + { + if (!m_privateContextMenu) + { + m_privateContextMenu = new wxMenu; + m_privateContextMenu->Append(wxID_UNDO, _("&Undo")); + m_privateContextMenu->Append(wxID_REDO, _("&Redo")); + m_privateContextMenu->AppendSeparator(); + m_privateContextMenu->Append(wxID_CUT, _("Cu&t")); + m_privateContextMenu->Append(wxID_COPY, _("&Copy")); + m_privateContextMenu->Append(wxID_PASTE, _("&Paste")); + m_privateContextMenu->Append(wxID_CLEAR, _("&Delete")); + m_privateContextMenu->AppendSeparator(); + m_privateContextMenu->Append(wxID_SELECTALL, _("Select &All")); + } + PopupMenu(m_privateContextMenu, event.GetPosition()); + return; + } + else +#endif + event.Skip(); } -int wxTextCtrl::GetLineLength(long lineNo) const +void wxTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event)) { - long charIndex = XYToPosition(0, lineNo); - int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); - return len; + // be sure the caret remains invisible if the user had hidden it + if ( !m_isNativeCaretShown ) + { + ::HideCaret(GetHwnd()); + } } -wxString wxTextCtrl::GetLineText(long lineNo) const +// the rest of the file only deals with the rich edit controls +#if wxUSE_RICHEDIT + +// ---------------------------------------------------------------------------- +// EN_LINK processing +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) { - 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; + NMHDR *hdr = (NMHDR* )lParam; + switch ( hdr->code ) + { + case EN_MSGFILTER: + { + const MSGFILTER *msgf = (MSGFILTER *)lParam; + UINT msg = msgf->msg; + + // this is a bit crazy but richedit 1.0 sends us all mouse + // events _except_ WM_LBUTTONUP (don't ask me why) so we have + // generate the wxWin events for this message manually + // + // NB: in fact, this is still not totally correct as it does + // send us WM_LBUTTONUP if the selection was cleared by the + // last click -- so currently we get 2 events in this case, + // but as I don't see any obvious way to check for this I + // leave this code in place because it's still better than + // not getting left up events at all + if ( msg == WM_LBUTTONUP ) + { + WXUINT flags = msgf->wParam; + int x = GET_X_LPARAM(msgf->lParam), + y = GET_Y_LPARAM(msgf->lParam); + + HandleMouseEvent(msg, x, y, flags); + } + } - wxString str(buf); + // return TRUE to process the event (and FALSE to ignore it) + return TRUE; - free(buf); + case EN_LINK: + { + const 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; + } - return str; + // not processed, leave it to the base class + return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result); } // ---------------------------------------------------------------------------- -// Undo/redo +// colour setting for the rich edit controls // ---------------------------------------------------------------------------- -void wxTextCtrl::Undo() +bool wxTextCtrl::SetBackgroundColour(const wxColour& colour) { - if (CanUndo()) + if ( !wxTextCtrlBase::SetBackgroundColour(colour) ) { - ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + // colour didn't really change + return FALSE; } -} -void wxTextCtrl::Redo() -{ - if (CanRedo()) + if ( IsRich() ) { - // Same as Undo, since Undo undoes the undo, i.e. a redo. - ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + // rich edit doesn't use WM_CTLCOLOR, hence we need to send + // EM_SETBKGNDCOLOR additionally + ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour)); } -} -bool wxTextCtrl::CanUndo() const -{ - return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); + return TRUE; } -bool wxTextCtrl::CanRedo() const +bool wxTextCtrl::SetForegroundColour(const wxColour& colour) { - return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); + 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; } // ---------------------------------------------------------------------------- -// implemenation details +// styling support for rich edit controls // ---------------------------------------------------------------------------- -void wxTextCtrl::Command(wxCommandEvent & event) -{ - SetValue(event.GetString()); - ProcessCommand (event); -} +#if wxUSE_RICHEDIT -void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) +bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) { - // By default, load the first file into the text window. - if (event.GetNumberOfFiles() > 0) + if ( !IsRich() ) { - LoadFile(event.GetFiles()[0]); + // can't do it with normal text control + return FALSE; } -} -WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, - WXLPARAM lParam) -{ -#if wxUSE_CTL3D - if ( m_useCtl3D ) + // 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() && + !style.HasLeftIndent() && !style.HasRightIndent() && !style.HasAlignment() && + !style.HasTabs() ) { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; + // 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 - HDC hdc = (HDC)pDC; - SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT - : OPAQUE); + wxZeroMemory(cf); - ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); + // 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); + } - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); + 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 + } - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); -} + if ( style.HasTextColour() ) + { + cf.dwMask |= CFM_COLOR; + cf.crTextColor = wxColourToRGB(style.GetTextColour()); + } -void wxTextCtrl::OnChar(wxKeyEvent& event) -{ - switch ( event.KeyCode() ) +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit != 1 && style.HasBackgroundColour() ) { - case WXK_RETURN: - if ( !(m_windowStyle & wxTE_MULTILINE) ) - { - wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); - event.SetEventObject( this ); - if ( GetEventHandler()->ProcessEvent(event) ) - return; - } - //else: multiline controls need Enter for themselves + cf.dwMask |= CFM_BACKCOLOR; + cf.crBackColor = wxColourToRGB(style.GetBackgroundColour()); + } +#endif // wxUSE_RICHEDIT2 - break; + // 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")); + } - case WXK_TAB: - // always produce navigation event - even if we process TAB - // 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.SetEventObject(this); + // now do the paragraph formatting + PARAFORMAT2 pf; + wxZeroMemory(pf); + // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple + // PARAFORMAT in that case +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit == 1 ) + { + // this is the only thing the control is going to grok + pf.cbSize = sizeof(PARAFORMAT); + } + else +#endif + { + // PARAFORMAT or PARAFORMAT2 + pf.cbSize = sizeof(pf); + } - if ( GetEventHandler()->ProcessEvent(eventNav) ) - return; - } - break; + if (style.HasAlignment()) + { + pf.dwMask |= PFM_ALIGNMENT; + if (style.GetAlignment() == wxTEXT_ALIGNMENT_RIGHT) + pf.wAlignment = PFA_RIGHT; + else if (style.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE) + pf.wAlignment = PFA_CENTER; + else if (style.GetAlignment() == wxTEXT_ALIGNMENT_JUSTIFIED) + pf.wAlignment = PFA_JUSTIFY; + else + pf.wAlignment = PFA_LEFT; + } - default: - event.Skip(); - return; + if (style.HasLeftIndent()) + { + pf.dwMask |= PFM_STARTINDENT; + + // Convert from 1/10 mm to TWIPS + pf.dxStartIndent = (int) (((double) style.GetLeftIndent()) * mm2twips / 10.0) ; + + // TODO: do we need to specify dxOffset? } - // 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 + if (style.HasRightIndent()) + { + pf.dwMask |= PFM_RIGHTINDENT; - // FIXME - event.Skip(); -} + // Convert from 1/10 mm to TWIPS + pf.dxRightIndent = (int) (((double) style.GetRightIndent()) * mm2twips / 10.0) ; + } -bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) -{ - switch (param) + if (style.HasTabs()) { - case EN_SETFOCUS: - case EN_KILLFOCUS: - { - wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS - : wxEVT_SET_FOCUS, - m_windowId); - event.SetEventObject( this ); - GetEventHandler()->ProcessEvent(event); - } - break; + pf.dwMask |= PFM_TABSTOPS; - 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 ); - ProcessCommand(event); - } - break; + const wxArrayInt& tabs = style.GetTabs(); - case EN_ERRSPACE: - // the text size limit has been hit - increase it - AdjustSpaceLimit(); - break; + pf.cTabCount = wxMin(tabs.GetCount(), MAX_TAB_STOPS); + size_t i; + for (i = 0; i < (size_t) pf.cTabCount; i++) + { + // Convert from 1/10 mm to TWIPS + pf.rgxTabs[i] = (int) (((double) tabs[i]) * mm2twips / 10.0) ; + } + } - // the other notification messages are not processed - case EN_UPDATE: - case EN_MAXTEXT: - case EN_HSCROLL: - case EN_VSCROLL: - default: - return FALSE; + if (pf.dwMask != 0) + { + // do format the selection + bool ok = ::SendMessage(GetHwnd(), EM_SETPARAFORMAT, + 0, (LPARAM) &pf) != 0; + if ( !ok ) + { + wxLogDebug(_T("SendMessage(EM_SETPARAFORMAT, 0) failed")); + } } - // processed + if ( changeSel ) + { + // restore the original selection + DoSetSelection(startOld, endOld, FALSE); + } + + return ok; +} + +bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style) +{ + if ( !wxTextCtrlBase::SetDefaultStyle(style) ) + return FALSE; + + // we have to do this or the style wouldn't apply for the text typed by the + // user + long posLast = GetLastPosition(); + SetStyle(posLast, posLast, m_defaultStyle); + return TRUE; } -void wxTextCtrl::AdjustSpaceLimit() +bool wxTextCtrl::GetStyle(long position, wxTextAttr& style) { -#ifndef __WIN16__ - unsigned int len = ::GetWindowTextLength(GetHwnd()), - limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); - if ( len > limit ) + if ( !IsRich() ) { - limit = len + 0x8000; // 32Kb + // can't do it with normal text control + return FALSE; + } -#if wxUSE_RICHEDIT - if ( m_isRich || limit > 0xffff ) + // initialize CHARFORMAT struct +#if wxUSE_RICHEDIT2 + CHARFORMAT2 cf; #else - if ( limit > 0xffff ) + CHARFORMAT cf; #endif - ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit); - else - ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); + + 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); + } + // 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); -bool wxTextCtrl::AcceptsFocus() const -{ - // we don't want focus if we can't be edited - return IsEditable() && wxControl::AcceptsFocus(); -} + // but do we really have to change the selection? + bool changeSel = position != startOld || position != endOld; -wxSize wxTextCtrl::DoGetBestSize() -{ - int cx, cy; - wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); + if ( changeSel ) + { + DoSetSelection(position, position, FALSE /* don't scroll caret into view */); + } - int wText = DEFAULT_ITEM_WIDTH; + // get the selection formatting + (void) ::SendMessage(GetHwnd(), EM_GETCHARFORMAT, + SCF_SELECTION, (LPARAM)&cf) ; + + LOGFONT lf; + lf.lfHeight = cf.yHeight; + lf.lfWidth = 0; + lf.lfCharSet = ANSI_CHARSET; // FIXME: how to get correct charset? + lf.lfClipPrecision = 0; + lf.lfEscapement = 0; + wxStrcpy(lf.lfFaceName, cf.szFaceName); + if (cf.dwEffects & CFE_ITALIC) + lf.lfItalic = TRUE; + lf.lfOrientation = 0; + lf.lfPitchAndFamily = cf.bPitchAndFamily; + lf.lfQuality = 0; + if (cf.dwEffects & CFE_STRIKEOUT) + lf.lfStrikeOut = TRUE; + if (cf.dwEffects & CFE_UNDERLINE) + lf.lfUnderline = TRUE; + if (cf.dwEffects & CFE_BOLD) + lf.lfWeight = FW_BOLD; + + wxFont font = wxCreateFontFromLogFont(& lf); + if (font.Ok()) + { + style.SetFont(font); + } + style.SetTextColour(wxColour(cf.crTextColor)); - int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); - if ( m_windowStyle & wxTE_MULTILINE ) +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit != 1 ) { - hText *= wxMin(GetNumberOfLines(), 5); + // cf.dwMask |= CFM_BACKCOLOR; + style.SetBackgroundColour(wxColour(cf.crBackColor)); + } +#endif // wxUSE_RICHEDIT2 + + // now get the paragraph formatting + PARAFORMAT2 pf; + wxZeroMemory(pf); + // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple + // PARAFORMAT in that case +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit == 1 ) + { + // this is the only thing the control is going to grok + pf.cbSize = sizeof(PARAFORMAT); + } + else +#endif + { + // PARAFORMAT or PARAFORMAT2 + pf.cbSize = sizeof(pf); } - //else: for single line control everything is ok - return wxSize(wText, hText); + // do format the selection + (void) ::SendMessage(GetHwnd(), EM_GETPARAFORMAT, 0, (LPARAM) &pf) ; + + style.SetLeftIndent( (int) ((double) pf.dxStartIndent * twips2mm * 10.0) ); + style.SetRightIndent( (int) ((double) pf.dxRightIndent * twips2mm * 10.0) ); + + if (pf.wAlignment == PFA_CENTER) + style.SetAlignment(wxTEXT_ALIGNMENT_CENTRE); + else if (pf.wAlignment == PFA_RIGHT) + style.SetAlignment(wxTEXT_ALIGNMENT_RIGHT); + else if (pf.wAlignment == PFA_JUSTIFY) + style.SetAlignment(wxTEXT_ALIGNMENT_JUSTIFIED); + else + style.SetAlignment(wxTEXT_ALIGNMENT_LEFT); + + wxArrayInt tabStops; + size_t i; + for (i = 0; i < (size_t) pf.cTabCount; i++) + { + tabStops[i] = (int) ((double) (pf.rgxTabs[i] & 0xFFFF) * twips2mm * 10.0) ; + } + + if ( changeSel ) + { + // restore the original selection + DoSetSelection(startOld, endOld, FALSE); + } + + return TRUE; } +#endif + // ---------------------------------------------------------------------------- -// standard handlers for standard edit menu events +// wxRichEditModule // ---------------------------------------------------------------------------- -void wxTextCtrl::OnCut(wxCommandEvent& event) +bool wxRichEditModule::OnInit() { - Cut(); + // don't do anything - we will load it when needed + return TRUE; } -void wxTextCtrl::OnCopy(wxCommandEvent& event) +void wxRichEditModule::OnExit() { - Copy(); + for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ ) + { + if ( ms_hRichEdit[i] ) + { + ::FreeLibrary(ms_hRichEdit[i]); + ms_hRichEdit[i] = NULL; + } + } } -void wxTextCtrl::OnPaste(wxCommandEvent& event) +/* static */ +bool wxRichEditModule::Load(int version) { - Paste(); -} + // 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") ); -void wxTextCtrl::OnUndo(wxCommandEvent& event) -{ - Undo(); -} + // make it the index in the array + version--; -void wxTextCtrl::OnRedo(wxCommandEvent& event) -{ - Redo(); -} + if ( ms_hRichEdit[version] == (HINSTANCE)-1 ) + { + // we had already tried to load it and failed + return FALSE; + } -void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) -{ - event.Enable( CanCut() ); -} + if ( ms_hRichEdit[version] ) + { + // we've already got this one + return TRUE; + } -void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) -{ - event.Enable( CanCopy() ); -} + wxString dllname = version ? _T("riched20") : _T("riched32"); + dllname += _T(".dll"); -void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) -{ - event.Enable( CanPaste() ); -} + ms_hRichEdit[version] = ::LoadLibrary(dllname); -void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) -{ - event.Enable( CanUndo() ); -} + if ( !ms_hRichEdit[version] ) + { + wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str()); -void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) -{ - event.Enable( CanRedo() ); + ms_hRichEdit[version] = (HINSTANCE)-1; + + return FALSE; + } + + return TRUE; } +#endif // wxUSE_RICHEDIT + +#endif // wxUSE_TEXTCTRL