X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a1b82138efe9aacda4e0ad7ce4b1551d624524c4..2c755d9bbf4c786a03cf6193c630fc986a69f802:/src/msw/textctrl.cpp diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index 0a3471b403..8ffbfce0c1 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -1,22 +1,18 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: textctrl.cpp +// Name: src/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__ - #pragma implementation "textctrl.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- @@ -28,16 +24,25 @@ #pragma hdrstop #endif +#if wxUSE_TEXTCTRL && !(defined(__SMARTPHONE__) && defined(__WXWINCE__)) + #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" + #include "wx/math.h" + #include "wx/module.h" + #include "wx/wxcrtvararg.h" #endif +#include "wx/sysopt.h" + #if wxUSE_CLIPBOARD - #include "wx/app.h" #include "wx/clipbrd.h" #endif @@ -46,47 +51,228 @@ #include #include "wx/msw/private.h" +#include "wx/msw/winundef.h" +#include "wx/msw/mslu.h" #include #include + +#ifndef __WXWINCE__ #include +#endif -#if wxUSE_IOSTREAMH -# include -#else -# include +#if wxUSE_RICHEDIT + +#if wxUSE_INKEDIT +#include "wx/dynlib.h" #endif -#if wxUSE_RICHEDIT && !defined(__GNUWIN32__) +// 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 +#endif // wxUSE_RICHEDIT + +#include "wx/msw/missing.h" + +#if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT + +// dummy value used for m_dropTarget, different from any valid pointer value +// (which are all even under Windows) and NULL +static wxDropTarget * + wxRICHTEXT_DEFAULT_DROPTARGET = reinterpret_cast(1); + +#endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT + +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +// 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(); + + // load the richedit DLL for the specified version of rich edit + static bool Load(Version version); + +#if wxUSE_INKEDIT + // load the InkEdit library + static bool LoadInkEdit(); +#endif + +private: + // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs + static HINSTANCE ms_hRichEdit[Version_Max]; + +#if wxUSE_INKEDIT + static wxDynamicLibrary ms_inkEditLib; + static bool ms_inkEditLibLoadAttemped; +#endif + + DECLARE_DYNAMIC_CLASS(wxRichEditModule) +}; + +HINSTANCE wxRichEditModule::ms_hRichEdit[Version_Max] = { NULL, NULL, NULL }; + +#if wxUSE_INKEDIT +wxDynamicLibrary wxRichEditModule::ms_inkEditLib; +bool wxRichEditModule::ms_inkEditLibLoadAttemped = false; +#endif + +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 || m_count == -2, + wxT("wrong initial m_updatesCount value") ); + + if (m_count != -2) + m_count = 0; + //else: we don't want to count how many update events we get as we're going + // to ignore all of them + } + + ~UpdatesCountFilter() + { + m_count = -1; + } + + // return true if an event has been received + bool GotUpdate() const + { + return m_count == 1; + } + +private: + int& m_count; + + wxDECLARE_NO_COPY_CLASS(UpdatesCountFilter); +}; // ---------------------------------------------------------------------------- // event tables and other macros // ---------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl) +#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_CHARWRAP) + 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, wxTextCtrlBase) +#endif + -BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) +BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase) EVT_CHAR(wxTextCtrl::OnChar) + EVT_KEY_DOWN(wxTextCtrl::OnKeyDown) 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) -END_EVENT_TABLE() + EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete) + EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll) -#endif // USE_SHARED_LIBRARY + EVT_SET_FOCUS(wxTextCtrl::OnSetFocus) +END_EVENT_TABLE() // ============================================================================ // implementation @@ -96,14 +282,36 @@ END_EVENT_TABLE() // creation // ---------------------------------------------------------------------------- -wxTextCtrl::wxTextCtrl() +void wxTextCtrl::Init() { #if wxUSE_RICHEDIT - m_isRich = FALSE; + m_verRichEdit = 0; +#endif // wxUSE_RICHEDIT + +#if wxUSE_INKEDIT && wxUSE_RICHEDIT + m_isInkEdit = 0; #endif + + m_privateContextMenu = NULL; + m_updatesCount = -1; + m_isNativeCaretShown = true; +} + +wxTextCtrl::~wxTextCtrl() +{ +#if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT + if ( m_dropTarget == wxRICHTEXT_DEFAULT_DROPTARGET ) + { + // don't try to destroy this dummy pointer in the base class dtor + m_dropTarget = NULL; + } +#endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT + + delete m_privateContextMenu; } -bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, +bool wxTextCtrl::Create(wxWindow *parent, + wxWindowID id, const wxString& value, const wxPoint& pos, const wxSize& size, @@ -112,818 +320,2530 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, const wxString& name) { // base initialization - if ( !CreateBase(parent, id, pos, size, style, name) ) - return FALSE; + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return false; - SetValidator(validator); - if ( parent ) - parent->AddChild(this); + if ( !MSWCreateText(value, pos, size) ) + return false; - // 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 ) +#if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT + if ( IsRich() ) { - 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 | WS_VSCROLL; - m_windowStyle |= wxTE_PROCESS_ENTER; + // rich text controls have a default associated drop target which + // allows them to receive (rich) text dropped on them, which is nice, + // but prevents us from associating a user-defined drop target with + // them as we need to unregister the old one first + // + // to make it work, we set m_dropTarget to this special value initially + // and check for it in our SetDropTarget() + m_dropTarget = wxRICHTEXT_DEFAULT_DROPTARGET; } - else - msStyle |= ES_AUTOHSCROLL; +#endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT - if (m_windowStyle & wxTE_READONLY) - msStyle |= ES_READONLY; + return true; +} - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); - if (m_windowStyle & wxTE_PASSWORD) // hidden input - msStyle |= ES_PASSWORD; +// returns true if the platform should explicitly apply a theme border +bool wxTextCtrl::CanApplyThemeBorder() const +{ +#ifdef __WXWINCE__ + return false; +#else + // Standard text control already handles theming + return ((GetWindowStyle() & (wxTE_RICH|wxTE_RICH2)) != 0); +#endif +} - // 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; +bool wxTextCtrl::MSWCreateText(const wxString& value, + const wxPoint& pos, + const wxSize& size) +{ + // 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 defined(__POCKETPC__) || defined(__SMARTPHONE__) + // A control that capitalizes the first letter + if ( HasFlag(wxTE_CAPITALIZE) ) + windowClass = wxT("CAPEDIT"); +#endif #if wxUSE_RICHEDIT - // multiline edit controls are RICHEDITs except for those which have a - // simple border (VZ: why??) - if ( (m_windowStyle & wxTE_MULTILINE) && - !(m_windowStyle & wxSIMPLE_BORDER) ) + 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); + if ( m_windowStyle & wxTE_RICH2 ) + { + // using richedit 2.0 implies using wxTE_RICH + m_windowStyle |= wxTE_RICH; + } - // Even with extended styles, need to combine with WS_BORDER for them to - // look right. - if ( want3D || wxStyleHasBorder(m_windowStyle) ) - msStyle |= WS_BORDER; + // we need to load the richedit DLL before creating the rich edit control + if ( m_windowStyle & wxTE_RICH ) + { + // 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 + +#if wxUSE_UNICODE + m_verRichEdit = 2; +#else // !wxUSE_UNICODE + m_verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1; +#endif // wxUSE_UNICODE/!wxUSE_UNICODE + +#if wxUSE_INKEDIT + // First test if we can load an ink edit control. Normally, all edit + // controls will be made ink edit controls if a tablet environment is + // found (or if msw.inkedit != 0 and the InkEd.dll is present). + // However, an application can veto ink edit controls by either specifying + // msw.inkedit = 0 or by removing wxTE_RICH[2] from the style. + // + if ((wxSystemSettings::HasFeature(wxSYS_TABLET_PRESENT) || wxSystemOptions::GetOptionInt(wxT("msw.inkedit")) != 0) && + !(wxSystemOptions::HasOption(wxT("msw.inkedit")) && wxSystemOptions::GetOptionInt(wxT("msw.inkedit")) == 0)) + { + if (wxRichEditModule::LoadInkEdit()) + { + windowClass = INKEDIT_CLASS; - // 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); +#if wxUSE_INKEDIT && wxUSE_RICHEDIT + m_isInkEdit = 1; +#endif - wxCHECK_MSG( m_hWnd, FALSE, _T("Failed to create text ctrl") ); + // Fake rich text version for other calls + m_verRichEdit = 2; + } + } +#endif -#if wxUSE_CTL3D - if ( want3D ) - { - Ctl3dSubclassCtl(GetHwnd()); - m_useCtl3D = TRUE; +#if wxUSE_INKEDIT + if (!IsInkEdit()) +#endif // wxUSE_INKEDIT + { + if ( m_verRichEdit == 2 ) + { + if ( wxRichEditModule::Load(wxRichEditModule::Version_41) ) + { + // yes, class name for version 4.1 really is 5.0 + windowClass = wxT("RICHEDIT50W"); + } + else if ( wxRichEditModule::Load(wxRichEditModule::Version_2or3) ) + { + windowClass = wxT("RichEdit20") +#if wxUSE_UNICODE + wxT("W"); +#else // ANSI + wxT("A"); +#endif // Unicode/ANSI + } + else // failed to load msftedit.dll and riched20.dll + { + m_verRichEdit = 1; + } + } + + if ( m_verRichEdit == 1 ) + { + if ( wxRichEditModule::Load(wxRichEditModule::Version_1) ) + { + windowClass = wxT("RICHEDIT"); + } + else // failed to load any richedit control DLL + { + // 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; + } + + m_verRichEdit = 0; + } + } + } // !useInkEdit } -#endif +#endif // wxUSE_RICHEDIT -#if wxUSE_RICHEDIT - if (m_isRich) + // we need to turn '\n's into "\r\n"s for the multiline controls + wxString valueWin; + if ( m_windowStyle & wxTE_MULTILINE ) { - // Have to enable events - ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, - ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); + valueWin = wxTextFile::Translate(value, wxTextFileType_Dos); } -#endif + else // single line + { + valueWin = value; + } + + // suppress events sent during control creation: we're called either from + // the ctor and then we shouldn't generate any events for compatibility + // with the other ports, or from SetWindowStyleFlag() and then we shouldn't + // generate the events because our text doesn't really change, the fact + // that we (sometimes) need to recreate the control is just an + // implementation detail + m_updatesCount = -2; + + if ( !MSWCreateControl(windowClass.wx_str(), msStyle, pos, size, valueWin) ) + return false; - SubclassWin(GetHWND()); + m_updatesCount = -1; - // set font, position, size and initial value - wxFont& fontParent = parent->GetFont(); - if ( fontParent.Ok() ) +#if wxUSE_RICHEDIT + if (IsRich()) { - SetFont(fontParent); +#if wxUSE_INKEDIT + if (IsInkEdit()) + { + // Pass IEM_InsertText (0) as wParam, in order to have the ink always + // converted to text. + ::SendMessage(GetHwnd(), EM_SETINKINSERTMODE, 0, 0); + + // Make sure the mouse can be used for input + ::SendMessage(GetHwnd(), EM_SETUSEMOUSEFORINPUT, 1, 0); + } +#endif + + // 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 && !IsInkEdit()) + { + // 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 + SetInitialSize(size); + } + else if ( m_windowStyle & wxTE_AUTO_URL ) + { + mask |= ENM_LINK; + + ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0); + } + + ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask); } else +#endif // wxUSE_RICHEDIT + if ( HasFlag(wxTE_MULTILINE) && HasFlag(wxTE_READONLY) ) { - SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); + // non-rich read-only multiline controls have grey background by + // default under MSW but this is not always appropriate, so forcefully + // reset the background colour to normal default + // + // this is not ideal but, after a long discussion on wx-dev (see + // http://thread.gmane.org/gmane.comp.lib.wxwidgets.devel/116360/) it + // was finally deemed to be the best behaviour by default (and ideally + // we'd have a way to change this, see #11521) + SetBackgroundColour(GetClassDefaultAttributes().colBg); } - // Causes a crash for Symantec C++ and WIN32 for some reason -#if !(defined(__SC__) && defined(__WIN32__)) - if ( !value.IsEmpty() ) - { - SetValue(value); - } +#ifndef __WXWINCE__ + // Without this, if we pass the size in the constructor and then don't change it, + // the themed borders will be drawn incorrectly. + SetWindowPos(GetHwnd(), NULL, 0, 0, 0, 0, + SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE| + SWP_FRAMECHANGED); #endif - SetSize(pos.x, pos.y, size.x, size.y); - - return TRUE; + return true; } // 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(wxT("EDIT"), false /* no case */) ) + { + m_verRichEdit = 0; + } + else // rich edit? + { + wxChar c; + if ( wxSscanf(classname, wxT("RichEdit%d0%c"), &m_verRichEdit, &c) != 2 ) + { + wxLogDebug(wxT("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()); -} - -// ---------------------------------------------------------------------------- -// set/get the controls text -// ---------------------------------------------------------------------------- + long msStyle = wxControl::MSWGetStyle(style, exstyle); -wxString wxTextCtrl::GetValue() const -{ - return wxGetWindowText(GetHWND()); -} + // styles which we always add by default + if ( style & wxTE_MULTILINE ) + { + 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 + // + // 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; + } -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... -void wxTextCtrl::Clear() -{ - SetWindowText(GetHwnd(), _T("")); + return msStyle; } -// ---------------------------------------------------------------------------- -// Clipboard operations -// ---------------------------------------------------------------------------- - -void wxTextCtrl::Copy() +void wxTextCtrl::SetWindowStyleFlag(long style) { - if (CanCopy()) + // changing the alignment of the control dynamically works under Win2003 + // (but not older Windows version: it seems to work under some versions of + // XP but not other ones, and we have no way to determine it so be + // conservative here) and only for plain EDIT controls (not RICH ones) and + // we have to recreate the control to make it always work + if ( IsRich() || wxGetWinVersion() < wxWinVersion_2003 ) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_COPY, 0, 0L); - } -} + const long alignMask = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT; + if ( (style & alignMask) != (GetWindowStyle() & alignMask) ) + { + const wxString value = GetValue(); + const wxPoint pos = GetPosition(); + const wxSize size = GetSize(); + + // delete the old window + HWND hwnd = GetHwnd(); + DissociateHandle(); + ::DestroyWindow(hwnd); + + // create the new one with the updated flags + m_windowStyle = style; + MSWCreateText(value, pos, size); + + // and make sure it has the same attributes as before + if ( m_hasFont ) + { + // calling SetFont(m_font) would do nothing as the code would + // notice that the font didn't change, so force it to believe + // that it did + wxFont font = m_font; + m_font = wxNullFont; + SetFont(font); + } -void wxTextCtrl::Cut() -{ - if (CanCut()) - { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_CUT, 0, 0L); - } -} + if ( m_hasFgCol ) + { + wxColour colFg = m_foregroundColour; + m_foregroundColour = wxNullColour; + SetForegroundColour(colFg); + } -void wxTextCtrl::Paste() -{ - if (CanPaste()) - { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, WM_PASTE, 0, 0L); - } -} + if ( m_hasBgCol ) + { + wxColour colBg = m_backgroundColour; + m_backgroundColour = wxNullColour; + SetBackgroundColour(colBg); + } -bool wxTextCtrl::CanCopy() const -{ - // Can copy if there's a selection - long from, to; - GetSelection(& from, & to); - return (from != to); -} + // note that text styles are lost but this is probably not a big + // problem: if you use styles, you probably don't use nor change + // alignment flags anyhow -bool wxTextCtrl::CanCut() const -{ - // Can cut if there's a selection - long from, to; - GetSelection(& from, & to); - return (from != to); -} + return; + } + } -bool wxTextCtrl::CanPaste() const -{ #if wxUSE_RICHEDIT - if (m_isRich) + // 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)) ) { - int dataFormat = 0; // 0 == any format - return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0); - } -#endif - if (!IsEditable()) - return FALSE; + bool set = (style & wxTE_NOHIDESEL) != 0; - // Standard edit control: check for straight text on clipboard - bool isTextAvailable = FALSE; - if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) - { - isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); - ::CloseClipboard(); + ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND, + set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL); } +#endif // wxUSE_RICHEDIT - return isTextAvailable; + wxControl::SetWindowStyleFlag(style); } // ---------------------------------------------------------------------------- -// Accessors +// set/get the controls text // ---------------------------------------------------------------------------- -void wxTextCtrl::SetEditable(bool editable) +bool wxTextCtrl::IsEmpty() const { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); + // this is an optimization for multiline controls containing a lot of text + if ( IsMultiLine() && GetNumberOfLines() != 1 ) + return false; + + return wxTextCtrlBase::IsEmpty(); } -void wxTextCtrl::SetInsertionPoint(long pos) +wxString wxTextCtrl::GetValue() const { - HWND hWnd = GetHwnd(); -#ifdef __WIN32__ + // range 0..-1 is special for GetRange() and means to retrieve all text + return GetRange(0, -1); +} + +wxString wxTextCtrl::GetRange(long from, long to) const +{ + wxString str; + + if ( from >= to && to != -1 ) + { + // nothing to retrieve + return str; + } + #if wxUSE_RICHEDIT - if ( m_isRich) + if ( IsRich() ) { - CHARRANGE range; - range.cpMin = pos; - range.cpMax = pos; - SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + 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 wxUSE_INTL + if ( encoding == wxFONTENCODING_SYSTEM ) + { + encoding = wxLocale::GetSystemEncoding(); + } +#endif // wxUSE_INTL + + 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); + } + } + + // 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 == wxT('\r') ) + *p = wxT('\n'); + } + } + } + + 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 { - SendMessage(hWnd, EM_SETSEL, pos, pos); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + // retrieve all text: wxTextEntry method works even for multiline + // controls and must be used for single line ones to account for hints + str = wxTextEntry::GetValue(); + + // 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); } -#else // Win16 - SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos)); -#endif // Win32/16 - static const char *nothing = ""; - SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); + return str; } -void wxTextCtrl::SetInsertionPointEnd() +void wxTextCtrl::DoSetValue(const wxString& value, int flags) { - long pos = GetLastPosition(); - SetInsertionPoint(pos); -} + // 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 != DoGetValue()) ) + { + DoWriteText(value, flags /* doesn't include SelectionOnly here */); -long wxTextCtrl::GetInsertionPoint() const -{ -#if wxUSE_RICHEDIT - if (m_isRich) + // mark the control as being not dirty - we changed its text, not the + // user + DiscardEdits(); + + // for compatibility, don't move the cursor when doing SetValue() + SetInsertionPoint(0); + } + else // same text { - CHARRANGE range; - range.cpMin = 0; - range.cpMax = 0; - SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); - return range.cpMin; + // still reset the modified flag even if the value didn't really change + // because now it comes from the program and not the user (and do it + // before generating the event so that the event handler could get the + // expected value from IsModified()) + DiscardEdits(); + + // still send an event for consistency + if (flags & SetValue_SendEvent) + SendUpdateEvent(); } -#endif - - DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); - return Pos & 0xFFFF; } -long wxTextCtrl::GetLastPosition() const -{ - HWND hWnd = GetHwnd(); - - // Will always return a number > 0 (according to docs) - int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); +#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU) - // This gets the char index for the _beginning_ of the last line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); +// TODO: using memcpy() would improve performance a lot for big amounts of text - // 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); +DWORD CALLBACK +wxRichEditStreamIn(DWORD_PTR dwCookie, BYTE *buf, LONG cb, LONG *pcb) +{ + *pcb = 0; - return (long)(charIndex + lineLength); -} + const wchar_t ** const ppws = (const wchar_t **)dwCookie; -// 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) + wchar_t *wbuf = (wchar_t *)buf; + const wchar_t *wpc = *ppws; + while ( cb && *wpc ) { - CHARRANGE charRange; - ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange); - - *from = charRange.cpMin; - *to = charRange.cpMax; + *wbuf++ = *wpc++; - return; + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); } -#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); + *ppws = wpc; - *from = dwStart; - *to = dwEnd; + return 0; } -bool wxTextCtrl::IsEditable() const +// helper struct used to pass parameters from wxTextCtrl to wxRichEditStreamOut +struct wxStreamOutData { - long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); + wchar_t *wpc; + size_t len; +}; - return ((style & ES_READONLY) == 0); -} +DWORD CALLBACK +wxRichEditStreamOut(DWORD_PTR dwCookie, BYTE *buf, LONG cb, LONG *pcb) +{ + *pcb = 0; -// ---------------------------------------------------------------------------- -// Editing -// ---------------------------------------------------------------------------- + wxStreamOutData *data = (wxStreamOutData *)dwCookie; -void wxTextCtrl::Replace(long from, long to, const wxString& value) -{ -#if wxUSE_CLIPBOARD - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; + const wchar_t *wbuf = (const wchar_t *)buf; + wchar_t *wpc = data->wpc; + while ( cb ) + { + wchar_t wch = *wbuf++; - // 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); + // turn "\r\n" into "\n" on the fly + if ( wch != L'\r' ) + *wpc++ = wch; + else + data->len--; - // Now replace with 'value', by pasting. - wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0); + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); + } - // 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 + data->wpc = wpc; + + return 0; } -void wxTextCtrl::Remove(long from, long to) -{ - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; - // Cut all selected text -#ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, fromChar, toChar); +#if wxUSE_UNICODE_MSLU + #define UNUSED_IF_MSLU(param) #else - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); + #define UNUSED_IF_MSLU(param) param #endif - SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); -} -void wxTextCtrl::SetSelection(long from, long to) +bool +wxTextCtrl::StreamIn(const wxString& value, + wxFontEncoding UNUSED_IF_MSLU(encoding), + bool selectionOnly) { - HWND hWnd = GetHwnd(); - long fromChar = from; - long toChar = to; +#if wxUSE_UNICODE_MSLU + const wchar_t *wpc = value.c_str(); +#else // !wxUSE_UNICODE_MSLU + wxCSConv conv(encoding); - // 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)) - { - fromChar = 0; - toChar = -1; - } + const size_t len = conv.MB2WC(NULL, value.mb_str(), value.length()); -#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 (len == wxCONV_FAILED) + return false; -bool wxTextCtrl::LoadFile(const wxString& file) -{ - if ( wxTextCtrlBase::LoadFile(file) ) - { - // update the size limit if needed - AdjustSpaceLimit(); + wxWCharBuffer wchBuf(len); // allocates one extra character + wchar_t *wpc = wchBuf.data(); - return TRUE; - } + conv.MB2WC(wpc, value.mb_str(), len + 1); +#endif // wxUSE_UNICODE_MSLU - return FALSE; -} + // finally, stream it in the control + EDITSTREAM eds; + wxZeroMemory(eds); + eds.dwCookie = (DWORD_PTR)&wpc; + // the cast below is needed for broken (very) old mingw32 headers + eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn; -bool wxTextCtrl::IsModified() const -{ - return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0); -} + // same problem as in DoWriteText(): we can get multiple events here + UpdatesCountFilter ucf(m_updatesCount); -// Makes 'unmodified' -void wxTextCtrl::DiscardEdits() -{ - SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); -} + ::SendMessage(GetHwnd(), EM_STREAMIN, + SF_TEXT | + SF_UNICODE | + (selectionOnly ? SFF_SELECTION : 0), + (LPARAM)&eds); -int wxTextCtrl::GetNumberOfLines() const -{ - return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); -} + // It's okay for EN_UPDATE to not be sent if the selection is empty and + // the text is empty, otherwise warn the programmer about it. + wxASSERT_MSG( ucf.GotUpdate() || ( !HasSelection() && value.empty() ), + wxT("EM_STREAMIN didn't send EN_UPDATE?") ); -long wxTextCtrl::XYToPosition(long x, long y) const -{ - HWND hWnd = GetHwnd(); + if ( eds.dwError ) + { + wxLogLastError(wxT("EM_STREAMIN")); + } - // 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_WCHAR_T + free(wchBuf); +#endif // !wxUSE_WCHAR_T + + return true; } -void wxTextCtrl::PositionToXY(long pos, long *x, long *y) const +#if !wxUSE_UNICODE_MSLU + +wxString +wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const { - HWND hWnd = GetHwnd(); + wxString out; - // This gets the line number containing the character - int lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0); - // This gets the char index for the _beginning_ of this line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); - // The X position must therefore be the different between pos and charIndex - *x = (long)(pos - charIndex); - *y = (long)lineNo; -} + const int len = GetWindowTextLength(GetHwnd()); -void wxTextCtrl::ShowPosition(long pos) -{ - HWND hWnd = 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 - // 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. + wxStreamOutData data; + data.wpc = wpc; + data.len = len; - // 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); + EDITSTREAM eds; + wxZeroMemory(eds); + eds.dwCookie = (DWORD)&data; + eds.pfnCallback = wxRichEditStreamOut; - int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L); + ::SendMessage + ( + GetHwnd(), + EM_STREAMOUT, + SF_TEXT | SF_UNICODE | (selectionOnly ? SFF_SELECTION : 0), + (LPARAM)&eds + ); - int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L); + if ( eds.dwError ) + { + wxLogLastError(wxT("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 != wxCONV_FAILED && lenNeeded++ ) + { + conv.WC2MB(wxStringBuffer(out, lenNeeded), wchBuf, lenNeeded); + } + } - int linesToScroll = specifiedLineLineNo - currentLineLineNo; +#if !wxUSE_WCHAR_T + free(wchBuf); +#endif // !wxUSE_WCHAR_T - if (linesToScroll != 0) - (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll); + return out; } -int wxTextCtrl::GetLineLength(long lineNo) const +#endif // !wxUSE_UNICODE_MSLU + +#endif // wxUSE_RICHEDIT + +void wxTextCtrl::WriteText(const wxString& value) { - long charIndex = XYToPosition(0, lineNo); - int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); - return len; + DoWriteText(value); } -wxString wxTextCtrl::GetLineText(long lineNo) const +void wxTextCtrl::DoWriteText(const wxString& value, int flags) { - size_t len = (size_t)GetLineLength(lineNo) + 1; - char *buf = (char *)malloc(len); - *(WORD *)buf = len; - int noChars = (int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); - buf[noChars] = 0; - - wxString str(buf); + bool selectionOnly = (flags & SetValue_SelectionOnly) != 0; + wxString valueDos; + if ( m_windowStyle & wxTE_MULTILINE ) + valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + else + valueDos = value; - free(buf); +#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 + } - return str; + 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 + if ( !(flags & SetValue_SendEvent) ) + m_updatesCount = -2; // suppress any update event + + UpdatesCountFilter ucf(m_updatesCount); + + ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT, + // EM_REPLACESEL takes 1 to indicate the operation should be redoable + selectionOnly ? 1 : 0, (LPARAM)valueDos.wx_str()); + + if ( !ucf.GotUpdate() && (flags & SetValue_SendEvent) ) + { + SendUpdateEvent(); + } + } } -// ---------------------------------------------------------------------------- -// Undo/redo -// ---------------------------------------------------------------------------- - -void wxTextCtrl::Undo() +void wxTextCtrl::AppendText(const wxString& text) { - if (CanUndo()) + wxTextEntry::AppendText(text); + +#if wxUSE_RICHEDIT + // don't do this if we're frozen, saves some time + if ( !IsFrozen() && IsMultiLine() && GetRichVersion() > 1 ) { - ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + // 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::Redo() +void wxTextCtrl::Clear() { - if (CanRedo()) + ::SetWindowText(GetHwnd(), wxEmptyString); + + if ( IsMultiLine() && !IsRich() ) { - // Same as Undo, since Undo undoes the undo, i.e. a redo. - ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + // 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 + SendUpdateEvent(); } } -bool wxTextCtrl::CanUndo() const -{ - return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); -} +#ifdef __WIN32__ -bool wxTextCtrl::CanRedo() const +bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event) { - return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); + 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__ + // ---------------------------------------------------------------------------- -// implemenation details +// Accessors // ---------------------------------------------------------------------------- -void wxTextCtrl::Command(wxCommandEvent & event) -{ - SetValue(event.GetString()); - ProcessCommand (event); -} - -void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) +void wxTextCtrl::SetInsertionPointEnd() { - // By default, load the first file into the text window. - if (event.GetNumberOfFiles() > 0) + // 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) + const wxTextPos lastPosition = GetLastPosition(); + if ( GetInsertionPoint() == lastPosition ) { - LoadFile(event.GetFiles()[0]); + return; } + + SetInsertionPoint(lastPosition); } -WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, - WXLPARAM lParam) +long wxTextCtrl::GetInsertionPoint() const { -#if wxUSE_CTL3D - if ( m_useCtl3D ) +#if wxUSE_RICHEDIT + if ( IsRich() ) { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; + CHARRANGE range; + range.cpMin = 0; + range.cpMax = 0; + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); + return range.cpMin; } -#endif - - HDC hdc = (HDC)pDC; - SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT - : OPAQUE); - - ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); - - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); +#endif // wxUSE_RICHEDIT - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); + return wxTextEntry::GetInsertionPoint(); } -void wxTextCtrl::OnChar(wxKeyEvent& event) +wxTextPos wxTextCtrl::GetLastPosition() const { - switch ( event.KeyCode() ) + if ( IsMultiLine() ) { - 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 - - 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. - // - // 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); + int numLines = GetNumberOfLines(); + long posStartLastLine = XYToPosition(0, numLines - 1); - if ( GetEventHandler()->ProcessEvent(eventNav) ) - return; - } - break; + long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine); - default: - event.Skip(); - return; + return posStartLastLine + lenLastLine; } - // don't just call event.Skip() because this will cause TABs and ENTERs - // be passed upwards and we don't always want this - instead process it - // right here - - // FIXME - event.Skip(); + return wxTextEntry::GetLastPosition(); } -bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) +// If the return values from and to are the same, there is no +// selection. +void wxTextCtrl::GetSelection(long *from, long *to) const { - switch (param) +#if wxUSE_RICHEDIT + if ( IsRich() ) { - 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: - { - 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; - - case EN_ERRSPACE: - // the text size limit has been hit - increase it - AdjustSpaceLimit(); - break; + CHARRANGE charRange; + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange); - // the other notification messages are not processed - case EN_UPDATE: - case EN_MAXTEXT: - case EN_HSCROLL: - case EN_VSCROLL: - default: - return FALSE; + *from = charRange.cpMin; + *to = charRange.cpMax; + } + else +#endif // !wxUSE_RICHEDIT + { + wxTextEntry::GetSelection(from, to); } - - // processed - return TRUE; } -void wxTextCtrl::AdjustSpaceLimit() +// ---------------------------------------------------------------------------- +// selection +// ---------------------------------------------------------------------------- + +void wxTextCtrl::DoSetSelection(long from, long to, int flags) { -#ifndef __WIN16__ - unsigned int len = ::GetWindowTextLength(GetHwnd()), - limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); - if ( len > limit ) + HWND hWnd = GetHwnd(); + +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + // if from and to are both -1, it means (in wxWidgets) that all text + // should be selected, translate this into Windows convention + if ( (from == -1) && (to == -1) ) + { + from = 0; + } + + CHARRANGE range; + range.cpMin = from; + range.cpMax = to; + ::SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM)&range); + } + else +#endif // wxUSE_RICHEDIT { - limit = len + 0x8000; // 32Kb + wxTextEntry::DoSetSelection(from, to, flags); + } + if ( (flags & SetSel_Scroll) && !IsFrozen() ) + { #if wxUSE_RICHEDIT - if ( m_isRich || limit > 0xffff ) -#else - if ( limit > 0xffff ) -#endif - ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit); - else - ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); + // 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 + long style = 0; + if ( GetRichVersion() > 1 ) + { + if ( !HasFlag(wxTE_NOHIDESEL) ) + { + // setting ECO_NOHIDESEL also sets WS_VISIBLE and possibly + // others, remember the style so we can reset it later if needed + style = ::GetWindowLong(GetHwnd(), GWL_STYLE); + ::SendMessage(GetHwnd(), EM_SETOPTIONS, + ECOOP_OR, ECO_NOHIDESEL); + } + //else: everything is already ok + } +#endif // wxUSE_RICHEDIT + + ::SendMessage(hWnd, EM_SCROLLCARET, 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); + if ( style != ::GetWindowLong(GetHwnd(), GWL_STYLE) ) + ::SetWindowLong(GetHwnd(), GWL_STYLE, style); + } +#endif // wxUSE_RICHEDIT } -#endif } -bool wxTextCtrl::AcceptsFocus() const -{ - // we don't want focus if we can't be edited - return IsEditable() && wxControl::AcceptsFocus(); -} +// ---------------------------------------------------------------------------- +// Working with files +// ---------------------------------------------------------------------------- -wxSize wxTextCtrl::DoGetBestSize() +bool wxTextCtrl::DoLoadFile(const wxString& file, int fileType) { - 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 ) + if ( wxTextCtrlBase::DoLoadFile(file, fileType) ) { - hText *= wxMin(GetNumberOfLines(), 5); + // update the size limit if needed + AdjustSpaceLimit(); + + return true; } - //else: for single line control everything is ok - return wxSize(wText, hText); + return false; } // ---------------------------------------------------------------------------- -// standard handlers for standard edit menu events +// dirty status // ---------------------------------------------------------------------------- -void wxTextCtrl::OnCut(wxCommandEvent& event) +bool wxTextCtrl::IsModified() const { - Cut(); + return ::SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0; } -void wxTextCtrl::OnCopy(wxCommandEvent& event) +void wxTextCtrl::MarkDirty() { - Copy(); + ::SendMessage(GetHwnd(), EM_SETMODIFY, TRUE, 0); } -void wxTextCtrl::OnPaste(wxCommandEvent& event) +void wxTextCtrl::DiscardEdits() { - Paste(); + ::SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0); } -void wxTextCtrl::OnUndo(wxCommandEvent& event) -{ - Undo(); -} +// ---------------------------------------------------------------------------- +// Positions <-> coords +// ---------------------------------------------------------------------------- -void wxTextCtrl::OnRedo(wxCommandEvent& event) +int wxTextCtrl::GetNumberOfLines() const { - Redo(); + return (int)::SendMessage(GetHwnd(), EM_GETLINECOUNT, 0, 0); } -void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) +long wxTextCtrl::XYToPosition(long x, long y) const { - event.Enable( CanCut() ); -} + // This gets the char index for the _beginning_ of this line + long charIndex = ::SendMessage(GetHwnd(), EM_LINEINDEX, y, 0); -void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) -{ - event.Enable( CanCopy() ); + return charIndex + x; } -void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) +bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const { - event.Enable( CanPaste() ); -} + HWND hWnd = GetHwnd(); -void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) -{ - event.Enable( CanUndo() ); + // This gets the line number containing the character + long lineNo; +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + lineNo = ::SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, pos); + } + else +#endif // wxUSE_RICHEDIT + { + lineNo = ::SendMessage(hWnd, EM_LINEFROMCHAR, 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, lineNo, 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::OnUpdateRedo(wxUpdateUIEvent& event) +wxTextCtrlHitTestResult +wxTextCtrl::HitTest(const wxPoint& pt, long *posOut) const { - event.Enable( CanRedo() ); -} + // 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); + } + } + + 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(); + + // 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, -1, 0L); + + int currentLineLineNo = (int)::SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, 0, 0); + + int specifiedLineLineNo = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, pos, 0); + + int linesToScroll = specifiedLineLineNo - currentLineLineNo; + + if (linesToScroll != 0) + ::SendMessage(hWnd, EM_LINESCROLL, 0, linesToScroll); +} + +long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const +{ + return ::SendMessage(GetHwnd(), EM_LINELENGTH, 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] == wxT('\r') && buf[len - 1] == wxT('\n') ) + { + // richedit 1.0 uses "\r\n" as line terminator, so remove "\r" + // here and "\n" below + buf[len - 2] = wxT('\n'); + len--; + } + else if ( buf[len - 1] == wxT('\r') ) + { + // richedit 2.0+ uses only "\r", replace it with "\n" + buf[len - 1] = wxT('\n'); + } + } +#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] == wxT('\n') ) + { + 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 + { + wxTextEntry::SetMaxLength(len); + } +} + +// ---------------------------------------------------------------------------- +// Undo/redo +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Redo() +{ +#if wxUSE_RICHEDIT + if ( GetRichVersion() > 1 ) + { + ::SendMessage(GetHwnd(), EM_REDO, 0, 0); + return; + } +#endif // wxUSE_RICHEDIT + + wxTextEntry::Redo(); +} + +bool wxTextCtrl::CanRedo() const +{ +#if wxUSE_RICHEDIT + if ( GetRichVersion() > 1 ) + return ::SendMessage(GetHwnd(), EM_CANREDO, 0, 0) != 0; +#endif // wxUSE_RICHEDIT + + return wxTextEntry::CanRedo(); +} + +// ---------------------------------------------------------------------------- +// 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/shown 2 times before) + return false; + } + + m_isNativeCaretShown = show; + } + + return true; +} + +// ---------------------------------------------------------------------------- +// implementation 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* msg) +{ + // 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 ) + { + const WPARAM vkey = msg->wParam; + if ( HIWORD(msg->lParam) & KF_ALTDOWN ) + { + // Alt-Backspace is accelerator for "Undo" + 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( wxT("how many modifiers have we got?") ); + // fall through + + case 0: + if ( IsMultiLine() && vkey == VK_RETURN ) + return false; + // fall through + 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(msg); +} + +void wxTextCtrl::OnChar(wxKeyEvent& event) +{ + switch ( event.GetKeyCode() ) + { + case WXK_RETURN: + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); + InitCommandEvent(event); + event.SetString(GetValue()); + if ( HandleWindowEvent(event) ) + if ( !HasFlag(wxTE_MULTILINE) ) + return; + //else: multiline controls need Enter for themselves + } + break; + + 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(); +} + +void wxTextCtrl::OnKeyDown(wxKeyEvent& event) +{ + // richedit control doesn't send WM_PASTE, WM_CUT and WM_COPY messages + // when Ctrl-V, X or C is pressed and this prevents wxClipboardTextEvent + // from working. So we work around it by intercepting these shortcuts + // ourselves and emitting clipboard events (which richedit will handle, + // so everything works as before, including pasting of rich text): + if ( event.GetModifiers() == wxMOD_CONTROL && IsRich() ) + { + switch ( event.GetKeyCode() ) + { + case 'C': + Copy(); + return; + case 'X': + Cut(); + return; + case 'V': + Paste(); + return; + default: + 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); + + switch ( nMsg ) + { + case 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: both TAB and ENTER are used for navigation + // 2. ctrl wants TAB for itself: ENTER is used to pass to + // the next control in the dialog + // 3. ctrl wants ENTER for itself: TAB is used for dialog + // navigation + // 4. ctrl wants both TAB and ENTER: Ctrl-ENTER is used to + // go to the next control (we need some way to do it) + + // multiline controls should always get ENTER for themselves + 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 in the disabled 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; + } + } + break; + +#if wxUSE_MENUS + case WM_SETCURSOR: + // rich text controls seem to have a bug and don't change the + // cursor to the standard arrow one from the I-beam cursor usually + // used by them even when a popup menu is shown (this works fine + // for plain EDIT controls though), so explicitly work around this + if ( IsRich() ) + { + extern wxMenu *wxCurrentPopupMenu; + if ( wxCurrentPopupMenu && + wxCurrentPopupMenu->GetInvokingWindow() == this ) + ::SetCursor(GetHcursorOf(*wxSTANDARD_CURSOR)); + } +#endif // wxUSE_MENUS + } + + 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; + + default: + wxFAIL_MSG( wxT("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; + + case -2: + // the control was updated programmatically and we do NOT want to + // send events + return false; + } + + return SendTextUpdatedEvent(); +} + +bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) +{ + switch ( param ) + { + 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 (or, in + // the case of EN_{SET/KILL}FOCUS were already handled at WM_SET/ + // KILLFOCUS level) + default: + return false; + } + + // processed + return true; +} + +WXHBRUSH wxTextCtrl::MSWControlColor(WXHDC hDC, WXHWND hWnd) +{ + if ( !IsEnabled() && !HasFlag(wxTE_MULTILINE) ) + return MSWControlColorDisabled(hDC); + + return wxTextCtrlBase::MSWControlColor(hDC, hWnd); +} + +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; + +} + +bool wxTextCtrl::AdjustSpaceLimit() +{ + unsigned int limit; + if ( HasSpaceLimit(&limit) ) + return false; + + unsigned int len = ::GetWindowTextLength(GetHwnd()); + if ( len >= limit ) + { + // increment in 32Kb chunks + SetMaxLength(len + 0x8000); + } + + // we changed the limit + return true; +} + +bool wxTextCtrl::AcceptsFocusFromKeyboard() 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 = cy; + if ( m_windowStyle & wxTE_MULTILINE ) + { + 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); +} + +// ---------------------------------------------------------------------------- +// 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)) +{ + RemoveSelection(); +} + +void wxTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event)) +{ + SelectAll(); +} + +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) +{ + event.Enable( HasSelection() && IsEditable() ); +} + +void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event) +{ + event.Enable( !IsEmpty() ); +} + +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& event) +{ + // be sure the caret remains invisible if the user had hidden it + if ( !m_isNativeCaretShown ) + { + ::HideCaret(GetHwnd()); + } + + event.Skip(); +} + +// 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) +{ + 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); +} + +#if wxUSE_DRAG_AND_DROP + +void wxTextCtrl::SetDropTarget(wxDropTarget *dropTarget) +{ + if ( m_dropTarget == wxRICHTEXT_DEFAULT_DROPTARGET ) + { + // get rid of the built-in drop target + ::RevokeDragDrop(GetHwnd()); + m_dropTarget = NULL; + } + + wxTextCtrlBase::SetDropTarget(dropTarget); +} + +#endif // wxUSE_DRAG_AND_DROP + +// ---------------------------------------------------------------------------- +// colour setting for the rich edit controls +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::SetBackgroundColour(const wxColour& colour) +{ + if ( !wxTextCtrlBase::SetBackgroundColour(colour) ) + { + // colour didn't really change + return false; + } + + if ( IsRich() ) + { + // rich edit doesn't use WM_CTLCOLOR, hence we need to send + // EM_SETBKGNDCOLOR additionally + ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour)); + } + + return true; +} + +bool wxTextCtrl::SetForegroundColour(const wxColour& colour) +{ + if ( !wxTextCtrlBase::SetForegroundColour(colour) ) + { + // colour didn't really change + return false; + } + + if ( IsRich() ) + { + // change the colour of everything + CHARFORMAT cf; + wxZeroMemory(cf); + cf.cbSize = sizeof(cf); + cf.dwMask = CFM_COLOR; + cf.crTextColor = wxColourToRGB(colour); + ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf); + } + + return true; +} + +// ---------------------------------------------------------------------------- +// styling support for rich edit controls +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) +{ + if ( !IsRich() ) + { + // can't do it with normal text control + return false; + } + + // the richedit 1.0 doesn't handle setting background colour, so don't + // even try to do anything if it's the only thing we want to change + if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() && + !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 + 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, SetSel_NoScroll); + } + + // initialize CHARFORMAT struct +#if wxUSE_RICHEDIT2 + CHARFORMAT2 cf; +#else + CHARFORMAT cf; +#endif + + wxZeroMemory(cf); + + // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple + // CHARFORMAT in that case +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit == 1 ) + { + // this is the only thing the control is going to grok + cf.cbSize = sizeof(CHARFORMAT); + } + else +#endif + { + // CHARFORMAT or CHARFORMAT2 + cf.cbSize = sizeof(cf); + } + + if ( style.HasFont() ) + { + // VZ: CFM_CHARSET doesn't seem to do anything at all in RichEdit 2.0 + // but using it doesn't seem to hurt neither so leaving it for now + + cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET | + CFM_ITALIC | CFM_BOLD | CFM_UNDERLINE; + + // fill in data from LOGFONT but recalculate lfHeight because we need + // the real height in twips and not the negative number which + // wxFillLogFont() returns (this is correct in general and works with + // the Windows font mapper, but not here) + + wxFont font(style.GetFont()); + + LOGFONT lf; + wxFillLogFont(&lf, &font); + cf.yHeight = 20*font.GetPointSize(); // 1 pt = 20 twips + cf.bCharSet = lf.lfCharSet; + cf.bPitchAndFamily = lf.lfPitchAndFamily; + wxStrlcpy(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 wxWidgets + } + + if ( style.HasTextColour() ) + { + cf.dwMask |= CFM_COLOR; + cf.crTextColor = wxColourToRGB(style.GetTextColour()); + } + +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit != 1 && style.HasBackgroundColour() ) + { + cf.dwMask |= CFM_BACKCOLOR; + cf.crBackColor = wxColourToRGB(style.GetBackgroundColour()); + } +#endif // wxUSE_RICHEDIT2 + + // do format the selection + bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, + SCF_SELECTION, (LPARAM)&cf) != 0; + if ( !ok ) + { + wxLogDebug(wxT("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 wxUSE_RICHEDIT2 + if ( m_verRichEdit > 1 ) + { + if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft ) + { + // Use RTL paragraphs in RTL mode to get proper layout + pf.dwMask |= PFM_RTLPARA; + pf.wEffects |= PFE_RTLPARA; + } + } +#endif // wxUSE_RICHEDIT2 + + if ( pf.dwMask ) + { + // do format the selection + bool ok = ::SendMessage(GetHwnd(), EM_SETPARAFORMAT, + 0, (LPARAM) &pf) != 0; + if ( !ok ) + { + wxLogDebug(wxT("SendMessage(EM_SETPARAFORMAT, 0) failed")); + } + } + + if ( changeSel ) + { + // restore the original selection + DoSetSelection(startOld, endOld, SetSel_NoScroll); + } + + 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 + 1, SetSel_NoScroll); + } + + // 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, SetSel_NoScroll); + } + + return true; +} + +// ---------------------------------------------------------------------------- +// wxRichEditModule +// ---------------------------------------------------------------------------- + +static const HINSTANCE INVALID_HINSTANCE = (HINSTANCE)-1; + +bool wxRichEditModule::OnInit() +{ + // don't do anything - we will load it when needed + return true; +} + +void wxRichEditModule::OnExit() +{ + for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ ) + { + if ( ms_hRichEdit[i] && ms_hRichEdit[i] != INVALID_HINSTANCE ) + { + ::FreeLibrary(ms_hRichEdit[i]); + ms_hRichEdit[i] = NULL; + } + } +#if wxUSE_INKEDIT + if (ms_inkEditLib.IsLoaded()) + ms_inkEditLib.Unload(); +#endif +} + +/* static */ +bool wxRichEditModule::Load(Version version) +{ + if ( ms_hRichEdit[version] == INVALID_HINSTANCE ) + { + // we had already tried to load it and failed + return false; + } + + if ( ms_hRichEdit[version] ) + { + // we've already got this one + return true; + } + + static const wxChar *const dllnames[] = + { + wxT("riched32"), + wxT("riched20"), + wxT("msftedit"), + }; + + wxCOMPILE_TIME_ASSERT( WXSIZEOF(dllnames) == Version_Max, + RichEditDllNamesVersionsMismatch ); + + ms_hRichEdit[version] = ::LoadLibrary(dllnames[version]); + + if ( !ms_hRichEdit[version] ) + { + ms_hRichEdit[version] = INVALID_HINSTANCE; + + return false; + } + + return true; +} + +#if wxUSE_INKEDIT +// load the InkEdit library +bool wxRichEditModule::LoadInkEdit() +{ + if (ms_inkEditLibLoadAttemped) + return ms_inkEditLib.IsLoaded(); + + ms_inkEditLibLoadAttemped = true; + + wxLogNull logNull; + return ms_inkEditLib.Load(wxT("inked")); +} +#endif // wxUSE_INKEDIT + + +#endif // wxUSE_RICHEDIT +#endif // wxUSE_TEXTCTRL && !(__SMARTPHONE__ && __WXWINCE__)