X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bc00e7155e50add264599856a39e0ceb2db19541..8b0df0e13811685c7fe998e21cca5000d740caf0:/src/msw/textctrl.cpp diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index 0676f10f0d..f2c219fba4 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -5,18 +5,14 @@ // 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__ - #pragma implementation "textctrl.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- @@ -28,6 +24,8 @@ #pragma hdrstop #endif +#if wxUSE_TEXTCTRL && !(defined(__SMARTPHONE__) && defined(__WXWINCE__)) + #ifndef WX_PRECOMP #include "wx/textctrl.h" #include "wx/settings.h" @@ -36,6 +34,8 @@ #include "wx/intl.h" #include "wx/log.h" #include "wx/app.h" + #include "wx/menu.h" + #include "wx/math.h" #endif #include "wx/module.h" @@ -49,25 +49,26 @@ #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_OLD__) || defined(__CYGWIN10__)) +#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 -// old mingw32 doesn't define this -#ifndef CFM_CHARSET - #define CFM_CHARSET 0x08000000 -#endif // CFM_CHARSET +#include "wx/msw/missing.h" + +#endif // wxUSE_RICHEDIT // ---------------------------------------------------------------------------- // private classes @@ -75,60 +76,166 @@ #if wxUSE_RICHEDIT -// this module initializes RichEdit DLL if needed +// this module initializes RichEdit DLL(s) if needed class wxRichEditModule : public wxModule { public: + enum Version + { + Version_1, // riched32.dll + Version_2or3, // both use riched20.dll + Version_41, // msftedit.dll (XP SP1 and Windows 2003) + Version_Max + }; + virtual bool OnInit(); virtual void OnExit(); - // get the version currently loaded, -1 if none - static int GetLoadedVersion() { return ms_verRichEdit; } - - // load the richedit DLL of at least of required version - static bool Load(int version = 1); + // load the richedit DLL for the specified version of rich edit + static bool Load(Version version); private: - // the handle to richedit DLL and the version of the DLL loaded - static HINSTANCE ms_hRichEdit; - - // the DLL version loaded or -1 if none - static int ms_verRichEdit; + // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs + static HINSTANCE ms_hRichEdit[Version_Max]; DECLARE_DYNAMIC_CLASS(wxRichEditModule) }; -HINSTANCE wxRichEditModule::ms_hRichEdit = (HINSTANCE)NULL; -int wxRichEditModule::ms_verRichEdit = -1; +HINSTANCE wxRichEditModule::ms_hRichEdit[Version_Max] = { NULL, NULL, NULL }; IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule) #endif // wxUSE_RICHEDIT +// a small class used to set m_updatesCount to 0 (to filter duplicate events if +// necessary) and to reset it back to -1 afterwards +class UpdatesCountFilter +{ +public: + UpdatesCountFilter(int& count) + : m_count(count) + { + wxASSERT_MSG( m_count == -1, _T("wrong initial m_updatesCount value") ); + + m_count = 0; + } + + ~UpdatesCountFilter() + { + m_count = -1; + } + + // return true if an event has been received + bool GotUpdate() const + { + return m_count == 1; + } + +private: + int& m_count; + + DECLARE_NO_COPY_CLASS(UpdatesCountFilter) +}; + // ---------------------------------------------------------------------------- // 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 , EMPTY_MACROVALUE, 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 , EMPTY_MACROVALUE , 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_CONTEXT_MENU(wxTextCtrl::OnContextMenu) +#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) -#ifdef __WIN16__ - EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground) -#endif + EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete) + EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll) + + EVT_SET_FOCUS(wxTextCtrl::OnSetFocus) END_EVENT_TABLE() // ============================================================================ @@ -139,11 +246,20 @@ 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_updatesCount = -1; + m_isNativeCaretShown = true; +} + +wxTextCtrl::~wxTextCtrl() +{ + delete m_privateContextMenu; } bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, @@ -154,225 +270,283 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, const wxValidator& validator, const wxString& name) { +#ifdef __WXWINCE__ + if ((style & wxBORDER_MASK) == 0) + style |= wxBORDER_SIMPLE; +#endif + // base initialization - if ( !CreateBase(parent, id, pos, size, style, validator, name) ) - return FALSE; + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return false; - if ( parent ) - parent->AddChild(this); + // translate wxWin style flags to MSW ones + WXDWORD msStyle = MSWGetCreateWindowFlags(); - // translate wxWin style flags to MSW ones, checking for consistency while - // doing it - long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; + // do create the control - either an EDIT or RICHEDIT + wxString windowClass = wxT("EDIT"); - if ( m_windowStyle & wxCLIP_SIBLINGS ) - msStyle |= WS_CLIPSIBLINGS; +#if defined(__POCKETPC__) || defined(__SMARTPHONE__) + // A control that capitalizes the first letter + if (style & wxTE_CAPITALIZE) + windowClass = wxT("CAPEDIT"); +#endif - if ( m_windowStyle & wxTE_MULTILINE ) +#if wxUSE_RICHEDIT + if ( m_windowStyle & wxTE_AUTO_URL ) { - wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), - 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; + // automatic URL detection only works in RichEdit 2.0+ + m_windowStyle |= wxTE_RICH2; } - else - msStyle |= ES_AUTOHSCROLL; - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); - - if (m_windowStyle & wxTE_READONLY) - msStyle |= ES_READONLY; - - if (m_windowStyle & wxTE_PASSWORD) // hidden input - msStyle |= ES_PASSWORD; - - if (m_windowStyle & wxTE_AUTO_SCROLL) - msStyle |= ES_AUTOHSCROLL; - - - // 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; - - // do create the control - either an EDIT or RICHEDIT - wxString windowClass = wxT("EDIT"); + if ( m_windowStyle & wxTE_RICH2 ) + { + // using richedit 2.0 implies using wxTE_RICH + m_windowStyle |= wxTE_RICH; + } -#if wxUSE_RICHEDIT + // we need to load the richedit DLL before creating the rich edit control if ( m_windowStyle & wxTE_RICH ) { - static bool s_errorGiven = FALSE; // MT-FIXME + // versions 2.0, 3.0 and 4.1 of rich edit are mostly compatible with + // each other but not with version 1.0, so we have separate flags for + // the version 1.0 and the others (and so m_verRichEdit may be 0 (plain + // EDIT control), 1 for version 1.0 or 2 for any higher version) + // + // notice that 1.0 has no Unicode support at all so in Unicode build we + // must use another version - // only give the error msg once if the DLL can't be loaded - if ( !s_errorGiven ) +#if wxUSE_UNICODE + m_verRichEdit = 2; +#else // !wxUSE_UNICODE + m_verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1; +#endif // wxUSE_UNICODE/!wxUSE_UNICODE + + if ( m_verRichEdit == 2 ) { - // first try to load the RichEdit DLL (will do nothing if already - // done) - if ( !wxRichEditModule::Load() ) + if ( wxRichEditModule::Load(wxRichEditModule::Version_41) ) { - wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll")); - - s_errorGiven = TRUE; + // yes, class name for version 4.1 really is 5.0 + windowClass = _T("RICHEDIT50W"); + } + else if ( wxRichEditModule::Load(wxRichEditModule::Version_2or3) ) + { + windowClass = _T("RichEdit20") +#if wxUSE_UNICODE + _T("W"); +#else // ANSI + _T("A"); +#endif // Unicode/ANSI + } + else // failed to load msftedit.dll and riched20.dll + { + m_verRichEdit = 1; } } - if ( s_errorGiven ) + if ( m_verRichEdit == 1 ) { - m_isRich = FALSE; - } - else - { - msStyle |= ES_AUTOVSCROLL; - m_isRich = TRUE; - - int ver = wxRichEditModule::GetLoadedVersion(); - if ( ver == 1 ) + if ( wxRichEditModule::Load(wxRichEditModule::Version_1) ) { - windowClass = wxT("RICHEDIT"); + windowClass = _T("RICHEDIT"); } - else + else // failed to load any richedit control DLL { -#ifndef RICHEDIT_CLASS - wxString RICHEDIT_CLASS; - RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), ver); -#if wxUSE_UNICODE - RICHEDIT_CLASS += _T('W'); -#else // ANSI - RICHEDIT_CLASS += _T('A'); -#endif // Unicode/ANSI -#endif // !RICHEDIT_CLASS + // only give the error msg once if the DLL can't be loaded + static bool s_errorGiven = false; // MT ok as only used by GUI + + if ( !s_errorGiven ) + { + wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll")); + + s_errorGiven = true; + } - windowClass = RICHEDIT_CLASS; + m_verRichEdit = 0; } } } - else - m_isRich = FALSE; #endif // wxUSE_RICHEDIT - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); + // we need to turn '\n's into "\r\n"s for the multiline controls + wxString valueWin; + if ( m_windowStyle & wxTE_MULTILINE ) + { + valueWin = wxTextFile::Translate(value, wxTextFileType_Dos); + } + else // single line + { + valueWin = value; + } + + if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) ) + return false; - // Even with extended styles, need to combine with WS_BORDER for them to - // look right. - if ( want3D || wxStyleHasBorder(m_windowStyle) ) - msStyle |= WS_BORDER; +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + // enable the events we're interested in: we want to get EN_CHANGE as + // for the normal controls + LPARAM mask = ENM_CHANGE; - // 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.c_str(), - NULL, - msStyle, - 0, 0, 0, 0, - GetHwndOf(parent), - (HMENU)m_windowId, - wxGetInstance(), - NULL); + if ( GetRichVersion() == 1 ) + { + // we also need EN_MSGFILTER for richedit 1.0 for the reasons + // explained in its handler + mask |= ENM_MOUSEEVENTS; + + // we also need to force the appearance of the vertical scrollbar + // initially as otherwise the control doesn't refresh correctly + // after resize: but once the vertical scrollbar had been shown + // (even if it's subsequently hidden) it does + // + // this is clearly a bug and for now it has been only noticed under + // Windows XP, so if we're sure it works correctly under other + // systems we could do this only for XP + SetSize(-1, 1); // 1 is small enough to force vert scrollbar + SetSize(size); + } + else if ( m_windowStyle & wxTE_AUTO_URL ) + { + mask |= ENM_LINK; - wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") ); + ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0); + } -#if wxUSE_CTL3D - if ( want3D ) - { - Ctl3dSubclassCtl(GetHwnd()); - m_useCtl3D = TRUE; + ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask); } -#endif +#endif // wxUSE_RICHEDIT + + return true; +} + +// Make sure the window style (etc.) reflects the HWND style (roughly) +void wxTextCtrl::AdoptAttributesFromHWND() +{ + wxWindow::AdoptAttributesFromHWND(); + HWND hWnd = GetHwnd(); + long style = ::GetWindowLong(hWnd, GWL_STYLE); + + // retrieve the style to see whether this is an edit or richedit ctrl #if wxUSE_RICHEDIT - if (m_isRich) + wxString classname = wxGetWindowClass(GetHWND()); + + if ( classname.IsSameAs(_T("EDIT"), false /* no case */) ) { - // Have to enable events - ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, - ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); + m_verRichEdit = 0; } -#endif + 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()); - SubclassWin(GetHWND()); + m_verRichEdit = 0; + } + } +#endif // wxUSE_RICHEDIT - // set font, position, size and initial value - wxFont& fontParent = parent->GetFont(); - if ( fontParent.Ok() ) + 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; +} + +WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + long msStyle = wxControl::MSWGetStyle(style, exstyle); + + // styles which we alaways add by default + if ( style & wxTE_MULTILINE ) { - SetFont(fontParent); + wxASSERT_MSG( !(style & wxTE_PROCESS_ENTER), + wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") ); + + 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; + +#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 + } + + style |= wxTE_PROCESS_ENTER; } - else + else // !multiline { - SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); + // there is really no reason to not have this style for single line + // text controls + msStyle |= ES_AUTOHSCROLL; } - // Causes a crash for Symantec C++ and WIN32 for some reason -#if !(defined(__SC__) && defined(__WIN32__)) - if ( !value.IsEmpty() ) + // 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 ) { - SetValue(value); + // automatically scroll the control horizontally as necessary + // + // NB: ES_AUTOHSCROLL is needed for richedit controls or they don't + // show horz scrollbar at all, even in spite of WS_HSCROLL, and as + // it doesn't seem to do any harm for plain edit controls, add it + // always + msStyle |= WS_HSCROLL | ES_AUTOHSCROLL; } -#endif - // set colours - SetupColours(); + if ( style & wxTE_READONLY ) + msStyle |= ES_READONLY; - SetSize(pos.x, pos.y, size.x, size.y); + if ( style & wxTE_PASSWORD ) + msStyle |= ES_PASSWORD; - return TRUE; -} + if ( style & wxTE_NOHIDESEL ) + msStyle |= ES_NOHIDESEL; -// Make sure the window style (etc.) reflects the HWND style (roughly) -void wxTextCtrl::AdoptAttributesFromHWND() -{ - wxWindow::AdoptAttributesFromHWND(); + // 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... - HWND hWnd = GetHwnd(); - long style = GetWindowLong(hWnd, GWL_STYLE); + return msStyle; +} - // retrieve the style to see whether this is an edit or richedit ctrl +void wxTextCtrl::SetWindowStyleFlag(long style) +{ #if wxUSE_RICHEDIT - wxChar buf[256]; - - GetClassName(hWnd, buf, WXSIZEOF(buf)); + // 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; - if ( wxStricmp(buf, wxT("EDIT")) == 0 ) - m_isRich = FALSE; - else - m_isRich = TRUE; + ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND, + set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL); + } #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() -{ - wxColour bkgndColour; -// if (IsEditable() || (m_windowStyle & wxTE_MULTILINE)) - bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW); -// else -// bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE); - - SetBackgroundColour(bkgndColour); - SetForegroundColour(GetParent()->GetForegroundColour()); + wxControl::SetWindowStyleFlag(style); } // ---------------------------------------------------------------------------- @@ -381,49 +555,125 @@ void wxTextCtrl::SetupColours() wxString wxTextCtrl::GetValue() const { - // we can't use wxGetWindowText() (i.e. WM_GETTEXT internally) for - // retrieving more than 64Kb under Win9x -#if wxUSE_RICHEDIT - if ( m_isRich ) + // 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 ) { - wxString str; + // nothing to retrieve + return str; + } +#if wxUSE_RICHEDIT + if ( IsRich() ) + { int len = GetWindowTextLength(GetHwnd()); - if ( len ) + if ( len > from ) { - // alloc one extra WORD as needed by the control - wxChar *p = str.GetWriteBuf(++len); - - TEXTRANGE textRange; - textRange.chrg.cpMin = 0; - textRange.chrg.cpMax = -1; - textRange.lpstrText = p; - - (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange); + 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); + } + } - // believe it or not, but EM_GETTEXTRANGE uses just CR ('\r') for - // the newlines which is neither Unix nor Windows style (Win95 with - // riched20.dll shows this behaviour) - convert it to something - // reasonable - for ( ; *p; p++ ) + // StreamOut() wasn't used or failed, try to do it in normal way + if ( str.empty() ) +#endif // !wxUSE_UNICODE { - if ( *p == _T('\r') ) - *p = _T('\n'); + // 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'); + } + } } - 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 - - return str; } + else #endif // wxUSE_RICHEDIT + { + // retrieve all text + str = wxGetWindowText(GetHWND()); - // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the - // same one as above for consitency - wxString 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 wxTextFile::Translate(str, wxTextFileType_Unix); + return str; } void wxTextCtrl::SetValue(const wxString& value) @@ -434,53 +684,347 @@ void wxTextCtrl::SetValue(const wxString& value) // edit controls mostly) if ( (value.length() > 0x400) || (value != GetValue()) ) { - wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + DoWriteText(value, false /* not selection only */); - SetWindowText(GetHwnd(), valueDos.c_str()); + // for compatibility, don't move the cursor when doing SetValue() + SetInsertionPoint(0); + } + else // same text + { + // still send an event for consistency + SendUpdateEvent(); + } - // for compatibility with the GTK and because it is more logical, we - // move the cursor to the end of the text after SetValue() + // we should reset the modified flag even if the value didn't really change - // GRG, Jun/2000: Changed this back after a lot of discussion - // in the lists. wxWindows 2.2 will have a set of flags to - // customize this behaviour. - //SetInsertionPointEnd(); + // mark the control as being not dirty - we changed its text, not the + // user + DiscardEdits(); +} - AdjustSpaceLimit(); +#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU) + +// TODO: using memcpy() would improve performance a lot for big amounts of text + +DWORD CALLBACK +wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb) +{ + *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 ) + { + *wbuf++ = *wpc++; + + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); } + + *ppws = wpc; + + return 0; } -void wxTextCtrl::WriteText(const wxString& value) +// helper struct used to pass parameters from wxTextCtrl to wxRichEditStreamOut +struct wxStreamOutData { - wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + wchar_t *wpc; + size_t len; +}; -#if wxUSE_RICHEDIT - // ensure that the new text will be in the default style - if ( IsRich() && - (m_defaultStyle.HasFont() || m_defaultStyle.HasTextColour()) ) +DWORD CALLBACK +wxRichEditStreamOut(DWORD_PTR dwCookie, BYTE *buf, LONG cb, LONG *pcb) +{ + *pcb = 0; + + wxStreamOutData *data = (wxStreamOutData *)dwCookie; + + const wchar_t *wbuf = (const wchar_t *)buf; + wchar_t *wpc = data->wpc; + while ( cb ) { - long start, end; - GetSelection(&start, &end); - SetStyle(start, end, m_defaultStyle ); + 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); } + + data->wpc = wpc; + + return 0; +} + + +#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) +{ +#if wxUSE_UNICODE_MSLU + const wchar_t *wpc = value.c_str(); +#else // !wxUSE_UNICODE_MSLU + wxCSConv conv(encoding); + + const size_t len = conv.MB2WC(NULL, value, value.length()); + +#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 + + conv.MB2WC(wpc, value, value.length()); +#endif // wxUSE_UNICODE_MSLU + + // 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; + + // same problem as in DoWriteText(): we can get multiple events here + UpdatesCountFilter ucf(m_updatesCount); + + ::SendMessage(GetHwnd(), EM_STREAMIN, + SF_TEXT | + SF_UNICODE | + (selectionOnly ? SFF_SELECTION : 0), + (LPARAM)&eds); + + wxASSERT_MSG( ucf.GotUpdate(), _T("EM_STREAMIN didn't send EN_UPDATE?") ); + + if ( eds.dwError ) + { + wxLogLastError(_T("EM_STREAMIN")); + } + +#if !wxUSE_WCHAR_T + free(wchBuf); +#endif // !wxUSE_WCHAR_T + + return true; +} + +#if !wxUSE_UNICODE_MSLU + +wxString +wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const +{ + wxString out; + + const int len = GetWindowTextLength(GetHwnd()); + +#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 + + 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 - SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); +void wxTextCtrl::WriteText(const wxString& value) +{ + 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; - AdjustSpaceLimit(); +#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 + } + + if ( !done ) +#endif // wxUSE_RICHEDIT + { + // in some cases we get 2 EN_CHANGE notifications after the SendMessage + // call (this happens for plain EDITs with EM_REPLACESEL and under some + // -- undetermined -- conditions with rich edit) and sometimes we don't + // get any events at all (plain EDIT with WM_SETTEXT), so ensure that + // we generate exactly one of them by ignoring all but the first one in + // SendUpdateEvent() and generating one ourselves if we hadn't got any + // notifications from Windows + UpdatesCountFilter ucf(m_updatesCount); + + ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT, + 0, (LPARAM)valueDos.c_str()); + + if ( !ucf.GotUpdate() ) + { + SendUpdateEvent(); + } + } } void wxTextCtrl::AppendText(const wxString& text) { SetInsertionPointEnd(); + WriteText(text); + +#if wxUSE_RICHEDIT + // don't do this if we're frozen, saves some time + if ( !IsFrozen() && 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::Clear() { - SetWindowText(GetHwnd(), wxT("")); + ::SetWindowText(GetHwnd(), wxEmptyString); + +#if wxUSE_RICHEDIT + if ( !IsRich() ) +#endif // wxUSE_RICHEDIT + { + // 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__ + +bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event) +{ + SetFocus(); + + size_t lenOld = GetValue().length(); + + wxUint32 code = event.GetRawKeyCode(); + ::keybd_event((BYTE)code, 0, 0 /* key press */, 0); + ::keybd_event((BYTE)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; } +#endif // __WIN32__ + // ---------------------------------------------------------------------------- // Clipboard operations // ---------------------------------------------------------------------------- @@ -489,8 +1033,7 @@ void wxTextCtrl::Copy() { if (CanCopy()) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_COPY, 0, 0L); + ::SendMessage(GetHwnd(), WM_COPY, 0, 0L); } } @@ -498,8 +1041,7 @@ void wxTextCtrl::Cut() { if (CanCut()) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_CUT, 0, 0L); + ::SendMessage(GetHwnd(), WM_CUT, 0, 0L); } } @@ -507,46 +1049,48 @@ void wxTextCtrl::Paste() { if (CanPaste()) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_PASTE, 0, 0L); + ::SendMessage(GetHwnd(), WM_PASTE, 0, 0L); } } +bool wxTextCtrl::HasSelection() const +{ + long from, to; + GetSelection(&from, &to); + return from != to; +} + bool wxTextCtrl::CanCopy() const { // Can copy if there's a selection - long from, to; - GetSelection(& from, & to); - return (from != to) ; + return HasSelection(); } bool wxTextCtrl::CanCut() const { - // Can cut if there's a selection - long from, to; - GetSelection(& from, & to); - return (from != to) && (IsEditable()); + 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; } @@ -558,74 +1102,68 @@ bool wxTextCtrl::CanPaste() const void wxTextCtrl::SetEditable(bool editable) { HWND hWnd = GetHwnd(); - SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); + ::SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); } void wxTextCtrl::SetInsertionPoint(long pos) { - HWND hWnd = GetHwnd(); -#ifdef __WIN32__ + 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; + #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 wxChar *nothing = _T(""); - 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; range.cpMax = 0; - SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); return range.cpMin; } -#endif +#endif // wxUSE_RICHEDIT - DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); + DWORD Pos = (DWORD)::SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); return Pos & 0xFFFF; } -long wxTextCtrl::GetLastPosition() const +wxTextPos 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 @@ -633,22 +1171,19 @@ long wxTextCtrl::GetLastPosition() const void wxTextCtrl::GetSelection(long* from, long* to) const { #if wxUSE_RICHEDIT - if (m_isRich) + if ( IsRich() ) { CHARRANGE charRange; - ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange); + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange); *from = charRange.cpMin; *to = charRange.cpMax; } else -#endif // rich/!rich +#endif // !wxUSE_RICHEDIT { DWORD dwStart, dwEnd; - WPARAM wParam = (WPARAM) &dwStart; // receives starting position - LPARAM lParam = (LPARAM) &dwEnd; // receives ending position - - ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); + ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd); *from = dwStart; *to = dwEnd; @@ -657,78 +1192,99 @@ void wxTextCtrl::GetSelection(long* from, long* to) const 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); + return (style & ES_READONLY) == 0; } // ---------------------------------------------------------------------------- -// Editing +// selection // ---------------------------------------------------------------------------- -void wxTextCtrl::Replace(long from, long to, const wxString& value) -{ -#if wxUSE_CLIPBOARD - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - - // Set selection and remove it -#ifdef __WIN32__ - SendMessage(hWnd, 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); - - // 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 -} - -void wxTextCtrl::Remove(long from, long to) +void wxTextCtrl::SetSelection(long from, long to) { - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; + // if from and to are both -1, it means (in wxWidgets) that all text should + // be selected - translate into Windows convention + if ( (from == -1) && (to == -1) ) + { + from = 0; + to = -1; + } - // 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); + DoSetSelection(from, to); } -void wxTextCtrl::SetSelection(long from, long to) +void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret) { HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = 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 wxUSE_RICHEDIT + if ( IsRich() ) + { + CHARRANGE range; + range.cpMin = from; + range.cpMax = to; + ::SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); + } + else +#endif // wxUSE_RICHEDIT { - fromChar = 0; - toChar = -1; + ::SendMessage(hWnd, EM_SETSEL, (WPARAM)from, (LPARAM)to); } -#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 + if ( scrollCaret && !IsFrozen() ) + { +#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 + + ::SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + +#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 + } } +// ---------------------------------------------------------------------------- +// Working with files +// ---------------------------------------------------------------------------- + bool wxTextCtrl::LoadFile(const wxString& file) { if ( wxTextCtrlBase::LoadFile(file) ) @@ -736,35 +1292,59 @@ bool wxTextCtrl::LoadFile(const wxString& file) // update the size limit if needed AdjustSpaceLimit(); - return TRUE; + return true; } - return FALSE; + return false; +} + +// ---------------------------------------------------------------------------- +// 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 */); + + DoWriteText(value, true /* selection only */); +} + +void wxTextCtrl::Remove(long from, long to) +{ + Replace(from, to, wxEmptyString); } bool wxTextCtrl::IsModified() const { - return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0); + return ::SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0; +} + +void wxTextCtrl::MarkDirty() +{ + ::SendMessage(GetHwnd(), EM_SETMODIFY, TRUE, 0L); } -// Makes 'unmodified' void wxTextCtrl::DiscardEdits() { - SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); + ::SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); } int wxTextCtrl::GetNumberOfLines() const { - return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); + return (int)::SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); } +// ---------------------------------------------------------------------------- +// Positions <-> coords +// ---------------------------------------------------------------------------- + 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 @@ -772,38 +1352,130 @@ 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 ) { // no such line - return FALSE; + return false; } // 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; + return false; } // 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; +} + +wxTextCtrlHitTestResult +wxTextCtrl::HitTest(const wxPoint& pt, long *posOut) const +{ + // first get the position from Windows + LPARAM lParam; + +#if wxUSE_RICHEDIT + POINTL ptl; + if ( IsRich() ) + { + // for rich edit controls the position is passed iva the struct fields + ptl.x = pt.x; + ptl.y = pt.y; + lParam = (LPARAM)&ptl; + } + else +#endif // wxUSE_RICHEDIT + { + // for the plain ones, we are limited to 16 bit positions which are + // combined in a single 32 bit value + lParam = MAKELPARAM(pt.x, pt.y); + } + + LRESULT pos = ::SendMessage(GetHwnd(), EM_CHARFROMPOS, 0, lParam); + + if ( pos == -1 ) + { + // this seems to indicate an error... + return wxTE_HT_UNKNOWN; + } + +#if wxUSE_RICHEDIT + if ( !IsRich() ) +#endif // wxUSE_RICHEDIT + { + // for plain EDIT controls the higher word contains something else + pos = LOWORD(pos); + } + + + // next determine where it is relatively to our point: EM_CHARFROMPOS + // always returns the closest character but we need to be more precise, so + // double check that we really are where it pretends + POINTL ptReal; + +#if wxUSE_RICHEDIT + // FIXME: we need to distinguish between richedit 2 and 3 here somehow but + // we don't know how to do it + if ( IsRich() ) + { + ::SendMessage(GetHwnd(), EM_POSFROMCHAR, (WPARAM)&ptReal, pos); + } + else +#endif // wxUSE_RICHEDIT + { + LRESULT lRc = ::SendMessage(GetHwnd(), EM_POSFROMCHAR, pos, 0); + + if ( lRc == -1 ) + { + // this is apparently returned when pos corresponds to the last + // position + ptReal.x = + ptReal.y = 0; + } + else + { + ptReal.x = LOWORD(lRc); + ptReal.y = HIWORD(lRc); + } + } - return TRUE; + wxTextCtrlHitTestResult rc; + + if ( pt.y > ptReal.y + GetCharHeight() ) + rc = wxTE_HT_BELOW; + else if ( pt.x > ptReal.x + GetCharWidth() ) + rc = wxTE_HT_BEYOND; + else + rc = wxTE_HT_ON_TEXT; + + if ( posOut ) + *posOut = pos; + + return rc; } +// ---------------------------------------------------------------------------- +// +// ---------------------------------------------------------------------------- + void wxTextCtrl::ShowPosition(long pos) { HWND hWnd = GetHwnd(); @@ -817,23 +1489,28 @@ void wxTextCtrl::ShowPosition(long pos) // 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 currentLineLineNo1 = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L); - int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (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 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); + (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 @@ -845,17 +1522,61 @@ wxString wxTextCtrl::GetLineText(long lineNo) const len += sizeof(WORD); wxString str; - wxChar *buf = str.GetWriteBuf(len); + { + 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 - *(WORD *)buf = (WORD)len; - len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); - buf[len] = 0; + // 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--; + } - str.UngetWriteBuf(len); + buf[len] = 0; + tmp.SetLength(len); + } return str; } +void wxTextCtrl::SetMaxLength(unsigned long len) +{ +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, len ? len : 0x7fffffff); + } + else +#endif // wxUSE_RICHEDIT + { + if ( len >= 0xffff ) + { + // this will set it to a platform-dependent maximum (much more + // than 64Kb under NT) + len = 0; + } + + ::SendMessage(GetHwnd(), EM_LIMITTEXT, len, 0); + } +} + // ---------------------------------------------------------------------------- // Undo/redo // ---------------------------------------------------------------------------- @@ -872,6 +1593,11 @@ void wxTextCtrl::Redo() { if (CanRedo()) { +#if wxUSE_RICHEDIT + if (GetRichVersion() > 1) + ::SendMessage(GetHwnd(), EM_REDO, 0, 0); + else +#endif // Same as Undo, since Undo undoes the undo, i.e. a redo. ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); } @@ -879,12 +1605,38 @@ 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); +#if wxUSE_RICHEDIT + if (GetRichVersion() > 1) + return ::SendMessage(GetHwnd(), EM_CANREDO, 0, 0) != 0; + else +#endif + 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; } // ---------------------------------------------------------------------------- @@ -906,12 +1658,76 @@ void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) } } +// ---------------------------------------------------------------------------- +// 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.KeyCode() ) + switch ( event.GetKeyCode() ) { case WXK_RETURN: - if ( !(m_windowStyle & wxTE_MULTILINE) ) + if ( !HasFlag(wxTE_MULTILINE) ) { wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); InitCommandEvent(event); @@ -923,193 +1739,234 @@ void wxTextCtrl::OnChar(wxKeyEvent& event) 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); + case WXK_TAB: + // ok, so this is getting absolutely ridiculous but I don't see + // any other way to fix this bug: when a multiline text control is + // inside a wxFrame, we need to generate the navigation event as + // otherwise nothing happens at all, but when the same control is + // created inside a dialog, IsDialogMessage() *does* switch focus + // all by itself and so if we do it here as well, it is advanced + // twice and goes to the next control... to prevent this from + // happening we're doing this ugly check, the logic being that if + // we don't have focus then it had been already changed to the next + // control + // + // the right thing to do would, of course, be to understand what + // the hell is IsDialogMessage() doing but this is beyond my feeble + // forces at the moment unfortunately + if ( !(m_windowStyle & wxTE_PROCESS_TAB)) + { + if ( FindFocus() == this ) + { + int flags = 0; + if (!event.ShiftDown()) + flags |= wxNavigationKeyEvent::IsForward ; + if (event.ControlDown()) + flags |= wxNavigationKeyEvent::WinChange ; + if (Navigate(flags)) + return; + } + } + else + { + // Insert tab since calling the default Windows handler + // doesn't seem to do it + WriteText(wxT("\t")); + return; + } + break; + } + + // no, we didn't process it + event.Skip(); +} + +WXLRESULT wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + WXLRESULT 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() +{ + switch ( m_updatesCount ) + { + case 0: + // remember that we've got an update + m_updatesCount++; + break; + + case 1: + // we had already sent one event since the last control modification + return false; - if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) ) - return; - } + default: + wxFAIL_MSG( _T("unexpected wxTextCtrl::m_updatesCount value") ); + // fall through + + case -1: + // we hadn't updated the control ourselves, this event comes from + // the user, don't need to ignore it nor update the count break; } - // no, we didn't process it - event.Skip(); + wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId()); + InitCommandEvent(event); + + return ProcessCommand(event); } bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { - switch (param) + switch ( param ) { case EN_SETFOCUS: case EN_KILLFOCUS: { wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS - : wxEVT_SET_FOCUS, - m_windowId); - event.SetEventObject( this ); + : 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_UPDATED, m_windowId); + wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId); InitCommandEvent(event); event.SetString(GetValue()); ProcessCommand(event); } break; - case EN_MAXTEXT: - // the text size limit has been hit - increase it - AdjustSpaceLimit(); - break; - - // the other notification messages are not processed - case EN_UPDATE: - case EN_ERRSPACE: - case EN_HSCROLL: - case EN_VSCROLL: - return FALSE; + // the other edit notification messages are not processed default: - return FALSE; + return false; } // processed - return TRUE; + 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 - ) +WXHBRUSH wxTextCtrl::MSWControlColor(WXHDC hDC, WXHWND hWnd) { -#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::GetSystemColour(wxSYS_COLOUR_3DFACE); - - ::SetBkColor(hdc, wxColourToRGB(colBack)); - ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour())); - - wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID); + if ( !IsEnabled() && !HasFlag(wxTE_MULTILINE) ) + return MSWControlColorDisabled(hDC); - return (WXHBRUSH)brush->GetResourceHandle(); + return wxTextCtrlBase::MSWControlColor(hDC, hWnd); } -// 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::GetSystemColour(wxSYS_COLOUR_WINDOW); -#endif - - RECT rect; - ::GetClientRect(GetHwnd(), &rect); - - COLORREF ref = PALETTERGB(col.Red(), - col.Green(), - col.Blue()); - 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); +bool wxTextCtrl::HasSpaceLimit(unsigned int *len) const +{ + // 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() + // + // Unfortunately there is no EM_GETLIMITTEXTSETBYUSER and so we don't + // know the limit we set (if any). 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 small values while EN_MAXTEXT is only sent + // for large values (in practice the default limit seems to be 30000 + // but make it smaller just to be on the safe side) + *len = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); + return *len < 10001; } -#endif -void wxTextCtrl::AdjustSpaceLimit() +bool wxTextCtrl::AdjustSpaceLimit() { -#ifndef __WIN16__ - unsigned int len = ::GetWindowTextLength(GetHwnd()), - limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); + unsigned int limit; + if ( HasSpaceLimit(&limit) ) + return false; + + unsigned int len = ::GetWindowTextLength(GetHwnd()); if ( len >= limit ) { - limit = len + 0x8000; // 32Kb - -#if wxUSE_RICHEDIT - if ( m_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); - } + // increment in 32Kb chunks + SetMaxLength(len + 0x8000); } -#endif // !Win16 + + // we changed the limit + return true; } bool wxTextCtrl::AcceptsFocus() const { - // we don't want focus if we can't be edited - return IsEditable() && wxControl::AcceptsFocus(); + // 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()); + wxGetCharSize(GetHWND(), &cx, &cy, GetFont()); int wText = DEFAULT_ITEM_WIDTH; - int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); + int hText = cy; if ( m_windowStyle & wxTE_MULTILINE ) { - hText *= wxMax(GetNumberOfLines(), 5); + hText *= wxMax(wxMin(GetNumberOfLines(), 10), 2); } //else: for single line control everything is ok + // we have to add the adjustments for the control height only once, not + // once per line, so do it after multiplication above + hText += EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy) - cy; + return wxSize(wText, hText); } @@ -1142,6 +1999,19 @@ 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() ); @@ -1167,24 +2037,183 @@ 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::OnContextMenu(wxContextMenuEvent& 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); + return; + } + else +#endif + event.Skip(); +} + +void wxTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event)) +{ + // be sure the caret remains invisible if the user had hidden it + if ( !m_isNativeCaretShown ) + { + ::HideCaret(GetHwnd()); + } +} + +// ---------------------------------------------------------------------------- +// Default colors for MSW text control +// +// Set default background color to the native white instead of +// the default wxSYS_COLOUR_BTNFACE (is triggered with wxNullColour). +// ---------------------------------------------------------------------------- + +wxVisualAttributes wxTextCtrl::GetDefaultAttributes() const +{ + wxVisualAttributes attrs; + attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT); + attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT); + attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW); //white + + return attrs; +} + // the rest of the file only deals with the rich edit controls #if wxUSE_RICHEDIT // ---------------------------------------------------------------------------- -// colour setting for the rich edit controls +// EN_LINK processing // ---------------------------------------------------------------------------- -// Watcom C++ doesn't define this -#ifndef SCF_ALL -#define SCF_ALL 0x0004 -#endif +bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) +{ + 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); + } + } + + // return true to process the event (and false to ignore it) + return true; + + 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? + { + wxCursor cur(wxCURSOR_HAND); + ::SetCursor(GetHcursorOf(cur)); + *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, leave it to the base class + return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result); +} + +// ---------------------------------------------------------------------------- +// colour setting for the rich edit controls +// ---------------------------------------------------------------------------- bool wxTextCtrl::SetBackgroundColour(const wxColour& colour) { if ( !wxTextCtrlBase::SetBackgroundColour(colour) ) { // colour didn't really change - return FALSE; + return false; } if ( IsRich() ) @@ -1194,7 +2223,7 @@ bool wxTextCtrl::SetBackgroundColour(const wxColour& colour) ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour)); } - return TRUE; + return true; } bool wxTextCtrl::SetForegroundColour(const wxColour& colour) @@ -1202,7 +2231,7 @@ bool wxTextCtrl::SetForegroundColour(const wxColour& colour) if ( !wxTextCtrlBase::SetForegroundColour(colour) ) { // colour didn't really change - return FALSE; + return false; } if ( IsRich() ) @@ -1216,28 +2245,31 @@ bool wxTextCtrl::SetForegroundColour(const wxColour& colour) ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf); } - return TRUE; + return true; } // ---------------------------------------------------------------------------- // styling support for rich edit controls // ---------------------------------------------------------------------------- +#if wxUSE_RICHEDIT + bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) { if ( !IsRich() ) { // can't do it with normal text control - return FALSE; + return false; } - // the rich text control doesn't handle setting background colour, so don't - // even try if it's the only thing we want to change - if ( wxRichEditModule::GetLoadedVersion() < 2 && - !style.HasFont() && !style.HasTextColour() ) + // 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() ) { - // nothing to do: return TRUE if there was really nothing to do and - // FALSE if we failed to set bg colour + // nothing to do: return true if there was really nothing to do and + // false if we failed to set bg colour return !style.HasBackgroundColour(); } @@ -1258,7 +2290,9 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) bool changeSel = start != startOld || end != endOld; if ( changeSel ) - SendMessage(GetHwnd(), EM_SETSEL, (WPARAM) start, (LPARAM) end); + { + DoSetSelection(start, end, false /* don't scroll caret into view */); + } // initialize CHARFORMAT struct #if wxUSE_RICHEDIT2 @@ -1266,12 +2300,31 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) #else CHARFORMAT cf; #endif + wxZeroMemory(cf); - cf.cbSize = sizeof(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() ) { - cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET; + // 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 @@ -1284,26 +2337,25 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) cf.bPitchAndFamily = lf.lfPitchAndFamily; wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) ); - // also deal with underline/italic/bold attributes + // 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.dwMask |= CFM_ITALIC; cf.dwEffects |= CFE_ITALIC; } if ( lf.lfWeight == FW_BOLD ) { - cf.dwMask |= CFM_BOLD; cf.dwEffects |= CFE_BOLD; } if ( lf.lfUnderline ) { - cf.dwMask |= CFM_UNDERLINE; cf.dwEffects |= CFE_UNDERLINE; } - // strikeout fonts are not supported by wxWindows + // strikeout fonts are not supported by wxWidgets } if ( style.HasTextColour() ) @@ -1313,16 +2365,13 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) } #if wxUSE_RICHEDIT2 -#ifndef CFM_BACKCOLOR -#define CFM_BACKCOLOR 0x04000000 -#endif - - if ( wxRichEditModule::GetLoadedVersion() > 1 && style.HasBackgroundColour() ) + if ( m_verRichEdit != 1 && style.HasBackgroundColour() ) { cf.dwMask |= CFM_BACKCOLOR; cf.crBackColor = wxColourToRGB(style.GetBackgroundColour()); } -#endif +#endif // wxUSE_RICHEDIT2 + // do format the selection bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM)&cf) != 0; @@ -1331,75 +2380,315 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed")); } + // 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 (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; + } + + if (style.HasLeftIndent()) + { + pf.dwMask |= PFM_STARTINDENT | PFM_OFFSET; + + // Convert from 1/10 mm to TWIPS + pf.dxStartIndent = (int) (((double) style.GetLeftIndent()) * mm2twips / 10.0) ; + pf.dxOffset = (int) (((double) style.GetLeftSubIndent()) * mm2twips / 10.0) ; + } + + if (style.HasRightIndent()) + { + pf.dwMask |= PFM_RIGHTINDENT; + + // Convert from 1/10 mm to TWIPS + pf.dxRightIndent = (int) (((double) style.GetRightIndent()) * mm2twips / 10.0) ; + } + + if (style.HasTabs()) + { + pf.dwMask |= PFM_TABSTOPS; + + const wxArrayInt& tabs = style.GetTabs(); + + pf.cTabCount = (SHORT)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) ; + } + } + + 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")); + } + } + if ( changeSel ) { // restore the original selection - SendMessage(GetHwnd(), EM_SETSEL, (WPARAM)startOld, (LPARAM)endOld); + DoSetSelection(startOld, endOld, false); } return ok; } +bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style) +{ + if ( !wxTextCtrlBase::SetDefaultStyle(style) ) + return false; + + if ( IsEditable() ) + { + // we have to do this or the style wouldn't apply for the text typed by + // the user + wxTextPos posLast = GetLastPosition(); + SetStyle(posLast, posLast, m_defaultStyle); + } + + return true; +} + +bool wxTextCtrl::GetStyle(long position, wxTextAttr& style) +{ + if ( !IsRich() ) + { + // can't do it with normal text control + return false; + } + + // 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); + } + // 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 = position != startOld || position != endOld; + + if ( changeSel ) + { + DoSetSelection(position, position, false /* don't scroll caret into view */); + } + + // 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); + + //NOTE: we _MUST_ set each of these values to _something_ since we + //do not call wxZeroMemory on the LOGFONT lf + if (cf.dwEffects & CFE_ITALIC) + lf.lfItalic = TRUE; + else + lf.lfItalic = FALSE; + + lf.lfOrientation = 0; + lf.lfPitchAndFamily = cf.bPitchAndFamily; + lf.lfQuality = 0; + + if (cf.dwEffects & CFE_STRIKEOUT) + lf.lfStrikeOut = TRUE; + else + lf.lfStrikeOut = FALSE; + + if (cf.dwEffects & CFE_UNDERLINE) + lf.lfUnderline = TRUE; + else + lf.lfUnderline = FALSE; + + if (cf.dwEffects & CFE_BOLD) + lf.lfWeight = FW_BOLD; + else + lf.lfWeight = FW_NORMAL; + + wxFont font = wxCreateFontFromLogFont(& lf); + if (font.Ok()) + { + style.SetFont(font); + } + style.SetTextColour(wxColour(cf.crTextColor)); + +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit != 1 ) + { + // 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); + } + + // do format the selection + (void) ::SendMessage(GetHwnd(), EM_GETPARAFORMAT, 0, (LPARAM) &pf) ; + + style.SetLeftIndent( (int) ((double) pf.dxStartIndent * twips2mm * 10.0), (int) ((double) pf.dxOffset * 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.Add( (int) ((double) (pf.rgxTabs[i] & 0xFFFF) * twips2mm * 10.0) ); + } + + if ( changeSel ) + { + // restore the original selection + DoSetSelection(startOld, endOld, false); + } + + return true; +} + +#endif + // ---------------------------------------------------------------------------- // wxRichEditModule // ---------------------------------------------------------------------------- +static const HINSTANCE INVALID_HINSTANCE = (HINSTANCE)-1; + bool wxRichEditModule::OnInit() { // don't do anything - we will load it when needed - return TRUE; + return true; } void wxRichEditModule::OnExit() { - if ( ms_hRichEdit ) + for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ ) { - FreeLibrary(ms_hRichEdit); + if ( ms_hRichEdit[i] && ms_hRichEdit[i] != INVALID_HINSTANCE ) + { + ::FreeLibrary(ms_hRichEdit[i]); + ms_hRichEdit[i] = NULL; + } } } /* static */ -bool wxRichEditModule::Load(int version) +bool wxRichEditModule::Load(Version version) { - wxCHECK_MSG( version >= 1 && version <= 3, FALSE, - _T("incorrect richedit control version requested") ); - - if ( version <= ms_verRichEdit ) + if ( ms_hRichEdit[version] == INVALID_HINSTANCE ) { - // we've already got this or better - return TRUE; + // we had already tried to load it and failed + return false; } - if ( ms_hRichEdit ) + if ( ms_hRichEdit[version] ) { - ::FreeLibrary(ms_hRichEdit); + // we've already got this one + return true; } - // always try load riched20.dll first - like this we won't have to reload - // it later if we're first asked for RE 1 and then for RE 2 or 3 - wxString dllname = _T("riched20.dll"); - ms_hRichEdit = ::LoadLibrary(dllname); - ms_verRichEdit = 2; // no way to tell if it's 2 or 3, assume 2 - - if ( !ms_hRichEdit && (version == 1) ) + static const wxChar *dllnames[] = { - // fall back to RE 1 - dllname = _T("riched32.dll"); - ms_hRichEdit = ::LoadLibrary(dllname); - ms_verRichEdit = 1; - } + _T("riched32"), + _T("riched20"), + _T("msftedit"), + }; - if ( !ms_hRichEdit ) - { - wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str()); + wxCOMPILE_TIME_ASSERT( WXSIZEOF(dllnames) == Version_Max, + RichEditDllNamesVersionsMismatch ); - ms_verRichEdit = -1; + ms_hRichEdit[version] = ::LoadLibrary(dllnames[version]); + + if ( !ms_hRichEdit[version] ) + { + ms_hRichEdit[version] = INVALID_HINSTANCE; - return FALSE; + return false; } - return TRUE; + return true; } #endif // wxUSE_RICHEDIT +#endif // wxUSE_TEXTCTRL && !(__SMARTPHONE__ && __WXWINCE__)