X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fbc535ff084f61ec376f339c515d96d74065c18b..81c9effa8462662263c3b4eac2cfae1ef5caae2c:/src/msw/textctrl.cpp diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index d9ae39cc62..cee29ac19e 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -1,673 +1,1027 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: textctrl.cpp +// Name: msw/textctrl.cpp // Purpose: wxTextCtrl // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + #ifdef __GNUG__ -#pragma implementation "textctrl.h" + #pragma implementation "textctrl.h" #endif +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif +#if wxUSE_TEXTCTRL + #ifndef WX_PRECOMP -#include "wx/textctrl.h" -#include "wx/settings.h" + #include "wx/textctrl.h" + #include "wx/settings.h" + #include "wx/brush.h" + #include "wx/utils.h" + #include "wx/intl.h" + #include "wx/log.h" + #include "wx/app.h" #endif +#include "wx/module.h" + #if wxUSE_CLIPBOARD -#include "wx/app.h" -#include "wx/clipbrd.h" + #include "wx/clipbrd.h" #endif +#include "wx/textfile.h" + +#include + #include "wx/msw/private.h" -#include +#include #include +#include -#if wxUSE_IOSTREAMH -#include -#else -#include -# ifdef _MSC_VER - using namespace std; -# endif +#if wxUSE_RICHEDIT && (!defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)) + #include #endif -#include -#include -#if defined(__BORLANDC__) && !defined(__WIN32__) -#include -#else -#ifndef __GNUWIN32__ -#include +// old mingw32 doesn't define this +#ifndef CFM_CHARSET + #define CFM_CHARSET 0x08000000 +#endif // CFM_CHARSET + +#ifndef CFM_BACKCOLOR + #define CFM_BACKCOLOR 0x04000000 #endif -#define farmalloc malloc -#define farfree free + +// cygwin does not have these defined for richedit +#ifndef ENM_LINK + #define ENM_LINK 0x04000000 #endif -#include -#include +#ifndef EM_AUTOURLDETECT + #define EM_AUTOURLDETECT (WM_USER + 91) +#endif + +#ifndef EN_LINK + #define EN_LINK 0x070b + + typedef struct _enlink + { + NMHDR nmhdr; + UINT msg; + WPARAM wParam; + LPARAM lParam; + CHARRANGE chrg; + } ENLINK; +#endif // ENLINK + +#ifndef SF_UNICODE + #define SF_UNICODE 0x0010 +#endif -#if defined(__WIN95__) && !defined(__GNUWIN32__) -#include +// Watcom C++ doesn't define this +#ifndef SCF_ALL +#define SCF_ALL 0x0004 #endif -#if !USE_SHARED_LIBRARY +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb); + +#endif // wxUSE_RICHEDIT + +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +// this module initializes RichEdit DLL(s) if needed +class wxRichEditModule : public wxModule +{ +public: + virtual bool OnInit(); + virtual void OnExit(); + + // load the richedit DLL of at least of required version + static bool Load(int version = 1); + +private: + // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs + static HINSTANCE ms_hRichEdit[2]; + + DECLARE_DYNAMIC_CLASS(wxRichEditModule) +}; + +HINSTANCE wxRichEditModule::ms_hRichEdit[2] = { NULL, NULL }; + +IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule) + +#endif // wxUSE_RICHEDIT + +// ---------------------------------------------------------------------------- +// event tables and other macros +// ---------------------------------------------------------------------------- + IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl) BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) - EVT_CHAR(wxTextCtrl::OnChar) - EVT_DROP_FILES(wxTextCtrl::OnDropFiles) - EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground) + EVT_CHAR(wxTextCtrl::OnChar) + EVT_DROP_FILES(wxTextCtrl::OnDropFiles) + + 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_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut) + EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy) + EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste) + EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo) + EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo) +#ifdef __WIN16__ + EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground) +#endif END_EVENT_TABLE() -#endif +// ============================================================================ +// implementation +// ============================================================================ -// Text item -wxTextCtrl::wxTextCtrl(void) -#ifndef NO_TEXT_WINDOW_STREAM - :streambuf() -#endif +// ---------------------------------------------------------------------------- +// creation +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Init() { - m_fileName = ""; - m_isRich = FALSE; +#if wxUSE_RICHEDIT + m_verRichEdit = 0; +#endif } bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, - const wxString& value, - const wxPoint& pos, - const wxSize& size, long style, - const wxValidator& validator, - const wxString& name) + const wxString& value, + const wxPoint& pos, + const wxSize& size, + long style, + const wxValidator& validator, + const wxString& name) { - m_fileName = ""; - SetName(name); - SetValidator(validator); - if (parent) parent->AddChild(this); - - m_windowStyle = style; + // base initialization + if ( !CreateBase(parent, id, pos, size, style, validator, name) ) + return FALSE; - // Should this be taken from the system colours? -// SetBackgroundColour(wxColour(255, 255, 255)); + if ( parent ) + parent->AddChild(this); - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); + // translate wxWin style flags to MSW ones + WXDWORD msStyle = MSWGetCreateWindowFlags(); - SetForegroundColour(parent->GetForegroundColour()) ; + // do create the control - either an EDIT or RICHEDIT + wxString windowClass = wxT("EDIT"); - if ( id == -1 ) - m_windowId = (int)NewControlId(); - else - m_windowId = id; +#if wxUSE_RICHEDIT + if ( m_windowStyle & wxTE_AUTO_URL ) + { + // automatic URL detection only works in RichEdit 2.0+ + m_windowStyle |= wxTE_RICH2; + } - int x = pos.x; - int y = pos.y; - int width = size.x; - int height = size.y; + if ( m_windowStyle & wxTE_RICH2 ) + { + // using richedit 2.0 implies using wxTE_RICH + m_windowStyle |= wxTE_RICH; + } -#ifdef __WIN32__ - WXHGLOBAL m_globalHandle = 0; -#else - // Obscure method from the MS Developer's Network Disk for - // using global memory instead of the local heap, which - // runs out far too soon. Solves the problem with - // failing to appear. - - // Doesn't seem to work for Win95, so removing. - m_globalHandle=0; -// if ((wxGetOsVersion() != wxWINDOWS_NT) && (wxGetOsVersion() != wxWIN95)) -// m_globalHandle = (WXHGLOBAL) GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, -// 256L); -#endif - long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; - if (m_windowStyle & wxTE_MULTILINE) - msStyle |= ES_MULTILINE | ES_WANTRETURN | WS_VSCROLL ; // WS_BORDER - else - msStyle |= ES_AUTOHSCROLL ; - - if (m_windowStyle & wxTE_READONLY) - msStyle |= ES_READONLY; - - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL) ; - if (m_windowStyle & wxTE_PASSWORD) // hidden input - msStyle |= ES_PASSWORD; - - char *windowClass = "EDIT"; -#if defined(__WIN95__) - if ( m_windowStyle & wxTE_MULTILINE ) -#else - if ( FALSE ) -#endif - { - msStyle |= ES_AUTOVSCROLL; - m_isRich = TRUE; - windowClass = "RichEdit" ; - } - else - m_isRich = FALSE; - - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; - - // If we're in Win95, and we want a simple 2D border, - // then make it an EDIT control instead. -#if defined(__WIN95__) - if (m_windowStyle & wxSIMPLE_BORDER) - { - windowClass = "EDIT"; - m_isRich = FALSE; - } -#endif + // we need to load the richedit DLL before creating the rich edit control + if ( m_windowStyle & wxTE_RICH ) + { + static bool s_errorGiven = FALSE;// MT-FIXME + + // Which version do we need? Use 1.0 by default because it is much more + // like the the standard EDIT or 2.0 if explicitly requested, but use + // only 2.0 in Unicode mode as 1.0 doesn't support Unicode at all + // + // TODO: RichEdit 3.0 is apparently capable of emulating RichEdit 1.0 + // (and thus EDIT) much better than RichEdit 2.0 so we probably + // should use 3.0 if available as it is the best of both worlds - + // but as I can't test it right now I don't do it (VZ) +#if wxUSE_UNICODE + const int verRichEdit = 2; +#else // !wxUSE_UNICODE + int verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1; +#endif // wxUSE_UNICODE/!wxUSE_UNICODE + + // only give the error msg once if the DLL can't be loaded + if ( !s_errorGiven ) + { + // try to load the RichEdit DLL (will do nothing if already done) + if ( !wxRichEditModule::Load(verRichEdit) ) + { +#if !wxUSE_UNICODE + // try another version? + verRichEdit = 3 - verRichEdit; // 1 <-> 2 + + if ( !wxRichEditModule::Load(verRichEdit) ) +#endif // wxUSE_UNICODE + { + wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll")); + + s_errorGiven = TRUE; + } + } + } + + // have we managed to load any richedit version? + if ( !s_errorGiven ) + { + msStyle |= ES_AUTOVSCROLL; + + m_verRichEdit = verRichEdit; + if ( m_verRichEdit == 1 ) + { + windowClass = wxT("RICHEDIT"); + } + else + { +#ifndef RICHEDIT_CLASS + wxString RICHEDIT_CLASS; + RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), m_verRichEdit); +#if wxUSE_UNICODE + RICHEDIT_CLASS += _T('W'); +#else // ANSI + RICHEDIT_CLASS += _T('A'); +#endif // Unicode/ANSI +#endif // !RICHEDIT_CLASS + + windowClass = RICHEDIT_CLASS; + } + } + } +#endif // wxUSE_RICHEDIT - // Even with extended styles, need to combine with WS_BORDER - // for them to look right. - if (want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER) || - (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER)) - msStyle |= WS_BORDER; - - HWND edit = CreateWindowEx(exStyle, windowClass, NULL, - msStyle, - 0, 0, 0, 0, (HWND) ((wxWindow*)parent)->GetHWND(), (HMENU)m_windowId, - m_globalHandle ? (HINSTANCE) m_globalHandle : wxGetInstance(), NULL); - -#if CTL3D - if ( want3D ) - { - Ctl3dSubclassCtl(edit); - m_useCtl3D = TRUE; - } -#endif + // we need to turn '\n's into "\r\n"s for the multiline controls + wxString valueWin; + if ( m_windowStyle & wxTE_MULTILINE ) + { + valueWin = wxTextFile::Translate(value, wxTextFileType_Dos); + } + else // single line + { + valueWin = value; + } - m_hWnd = (WXHWND)edit; + if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) ) + return FALSE; -#if defined(__WIN95__) - if (m_isRich) - { - // Have to enable events - ::SendMessage(edit, EM_SETEVENTMASK, 0, ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); - } -#endif + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); - SubclassWin(GetHWND()); +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + // have to enable events manually + LPARAM mask = ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE; - if ( parent->GetFont() && parent->GetFont()->Ok() ) - { - SetFont(* parent->GetFont()); - } - else - { - SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); - } + if ( m_windowStyle & wxTE_AUTO_URL ) + { + mask |= ENM_LINK; - SetSize(x, y, width, height); + ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0); + } - // Causes a crash for Symantec C++ and WIN32 for some reason -#if !(defined(__SC__) && defined(__WIN32__)) - if (value != "") - SetWindowText(edit, (const char *)value); -#endif + ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask); + } +#endif // wxUSE_RICHEDIT - return TRUE; + return TRUE; } // Make sure the window style (etc.) reflects the HWND style (roughly) -void wxTextCtrl::AdoptAttributesFromHWND(void) +void wxTextCtrl::AdoptAttributesFromHWND() { - wxWindow::AdoptAttributesFromHWND(); + wxWindow::AdoptAttributesFromHWND(); - HWND hWnd = (HWND) GetHWND(); - long style = GetWindowLong((HWND) hWnd, GWL_STYLE); + HWND hWnd = GetHwnd(); + long style = ::GetWindowLong(hWnd, GWL_STYLE); - char buf[256]; + // retrieve the style to see whether this is an edit or richedit ctrl +#if wxUSE_RICHEDIT + wxString classname = wxGetWindowClass(GetHWND()); -#ifndef __WIN32__ - GetClassName((HWND) hWnd, buf, 256); -#else -#ifdef UNICODE - GetClassNameW((HWND) hWnd, buf, 256); -#else - GetClassNameA((HWND) hWnd, buf, 256); -#endif -#endif + if ( classname.IsSameAs(_T("EDIT"), FALSE /* no case */) ) + { + m_verRichEdit = 0; + } + else // rich edit? + { + wxChar c; + if ( wxSscanf(classname, _T("RichEdit%d0%c"), &m_verRichEdit, &c) != 2 ) + { + wxLogDebug(_T("Unknown edit control '%s'."), classname.c_str()); + + 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; +} + +WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + // default border for the text controls is the sunken one + if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT ) + { + style |= wxBORDER_SUNKEN; + } + + long msStyle = wxControl::MSWGetStyle(style, exstyle); + + // default styles + msStyle |= ES_LEFT; + + if ( style & wxTE_MULTILINE ) + { + wxASSERT_MSG( !(style & wxTE_PROCESS_ENTER), + wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") ); + + msStyle |= ES_MULTILINE | ES_WANTRETURN; + if ( !(style & wxTE_NO_VSCROLL) ) + msStyle |= WS_VSCROLL; + + style |= wxTE_PROCESS_ENTER; + } + else // !multiline + { + // there is really no reason to not have this style for single line + // text controls + msStyle |= ES_AUTOHSCROLL; + } + + if ( style & wxHSCROLL ) + msStyle |= WS_HSCROLL | ES_AUTOHSCROLL; + + if ( style & wxTE_READONLY ) + msStyle |= ES_READONLY; + + if ( style & wxTE_PASSWORD ) + msStyle |= ES_PASSWORD; - wxString str(buf); - str.UpperCase(); + if ( style & wxTE_AUTO_SCROLL ) + msStyle |= ES_AUTOHSCROLL; - if (str == "EDIT") - m_isRich = FALSE; - else - m_isRich = TRUE; + if ( style & wxTE_NOHIDESEL ) + msStyle |= ES_NOHIDESEL; - 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; + return msStyle; } -void wxTextCtrl::SetupColours(void) +void wxTextCtrl::SetWindowStyleFlag(long style) { - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetForegroundColour()); +#if wxUSE_RICHEDIT + // we have to deal with some styles separately because they can't be + // changed by simply calling SetWindowLong(GWL_STYLE) but can be changed + // using richedit-specific EM_SETOPTIONS + if ( IsRich() && + ((style & wxTE_NOHIDESEL) != (GetWindowStyle() & wxTE_NOHIDESEL)) ) + { + bool set = (style & wxTE_NOHIDESEL) != 0; + + ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND, + set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL); + } +#endif // wxUSE_RICHEDIT + + wxControl::SetWindowStyleFlag(style); } -wxString wxTextCtrl::GetValue(void) const +// ---------------------------------------------------------------------------- +// set/get the controls text +// ---------------------------------------------------------------------------- + +wxString wxTextCtrl::GetValue() const { - int length = GetWindowTextLength((HWND) GetHWND()); - char *s = new char[length+1]; - GetWindowText((HWND) GetHWND(), s, length+1); - wxString str(s); - delete[] s; - return str; + // range 0..-1 is special for GetRange() and means to retrieve all text + return GetRange(0, -1); +} + +wxString wxTextCtrl::GetRange(long from, long to) const +{ + wxString str; + + if ( from >= to && to != -1 ) + { + // nothing to retrieve + return str; + } + +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + int len = GetWindowTextLength(GetHwnd()); + if ( len > from ) + { + // alloc one extra WORD as needed by the control + wxChar *p = str.GetWriteBuf(++len); + + TEXTRANGE textRange; + textRange.chrg.cpMin = from; + textRange.chrg.cpMax = to == -1 ? len : to; + textRange.lpstrText = p; + + (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange); + + if ( m_verRichEdit > 1 ) + { + // RichEdit 2.0 uses just CR ('\r') for the newlines which is + // neither Unix nor Windows style - convert it to something + // reasonable + for ( ; *p; p++ ) + { + if ( *p == _T('\r') ) + *p = _T('\n'); + } + } + + str.UngetWriteBuf(); + + if ( m_verRichEdit == 1 ) + { + // convert to the canonical form - see comment below + str = wxTextFile::Translate(str, wxTextFileType_Unix); + } + } + //else: no text at all, leave the string empty + } + else +#endif // wxUSE_RICHEDIT + { + // retrieve all text + str = wxGetWindowText(GetHWND()); + + // need only a range? + if ( from < to ) + { + str = str.Mid(from, to - from); + } + + // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the + // canonical one (same one as above) for consistency with the other kinds + // of controls and, more importantly, with the other ports + str = wxTextFile::Translate(str, wxTextFileType_Unix); + } + + return str; } void wxTextCtrl::SetValue(const wxString& value) { - // If newlines are denoted by just 10, must stick 13 in front. - int singletons = 0; - int len = value.Length(); - int i; - for (i = 0; i < len; i ++) - { - if ((i > 0) && (value[i] == 10) && (value[i-1] != 13)) - singletons ++; - } - if (singletons > 0) - { - char *tmp = new char[len + singletons + 1]; - int j = 0; - for (i = 0; i < len; i ++) - { - if ((i > 0) && (value[i] == 10) && (value[i-1] != 13)) - { - tmp[j] = 13; - j ++; - } - tmp[j] = value[i]; - j ++; - } - tmp[j] = 0; - SetWindowText((HWND) GetHWND(), tmp); - delete[] tmp; - } - else - SetWindowText((HWND) GetHWND(), (const char *)value); -} - -void wxTextCtrl::SetSize(int x, int y, int width, int height, int sizeFlags) -{ - int currentX, currentY; - GetPosition(¤tX, ¤tY); - int x1 = x; - int y1 = y; - int w1 = width; - int h1 = height; - - if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - x1 = currentX; - if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - y1 = currentY; - - AdjustForParentClientOrigin(x1, y1, sizeFlags); - - int cx; // button font dimensions - int cy; - - wxGetCharSize(GetHWND(), &cx, &cy,GetFont()); - - int control_width, control_height, control_x, control_y; - - // If we're prepared to use the existing size, then... - if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO)) - { - GetSize(&w1, &h1); - } - - // Deal with default size (using -1 values) - if (w1<=0) - w1 = DEFAULT_ITEM_WIDTH; - - control_x = x1; - control_y = y1; - control_width = w1; - control_height = h1; - - // Calculations may have made text size too small - if (control_height <= 0) - control_height = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); - - if (control_width <= 0) - control_width = DEFAULT_ITEM_WIDTH; - - MoveWindow((HWND) GetHWND(), (int)control_x, (int)control_y, - (int)control_width, (int)control_height, TRUE); + // if the text is long enough, it's faster to just set it instead of first + // comparing it with the old one (chances are that it will be different + // anyhow, this comparison is there to avoid flicker for small single-line + // edit controls mostly) + if ( (value.length() > 0x400) || (value != GetValue()) ) + { + DoWriteText(value, FALSE /* not selection only */); + + // mark the control as being not dirty - we changed its text, not the + // user + DiscardEdits(); + + // for compatibility, don't move the cursor when doing SetValue() + SetInsertionPoint(0); + } } -// Clipboard operations -void wxTextCtrl::Copy(void) +#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU) + +DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb) { - HWND hWnd = (HWND) GetHWND(); - SendMessage(hWnd, WM_COPY, 0, 0L); + *pcb = 0; + + wchar_t *wbuf = (wchar_t *)buf; + const wchar_t *wpc = *(const wchar_t **)dwCookie; + while ( cb && *wpc ) + { + *wbuf++ = *wpc++; + + cb -= sizeof(wchar_t); + (*pcb) += sizeof(wchar_t); + } + + *(const wchar_t **)dwCookie = wpc; + + return 0; } -void wxTextCtrl::Cut(void) +extern long wxEncodingToCodepage(wxFontEncoding encoding); // from utils.cpp + +#if wxUSE_UNICODE_MSLU +bool wxTextCtrl::StreamIn(const wxString& value, + wxFontEncoding WXUNUSED(encoding), + bool selectionOnly) { - HWND hWnd = (HWND) GetHWND(); - SendMessage(hWnd, WM_CUT, 0, 0L); + const wchar_t *wpc = value.c_str(); +#else // !wxUSE_UNICODE_MSLU +bool wxTextCtrl::StreamIn(const wxString& value, + wxFontEncoding encoding, + bool selectionOnly) +{ + // we have to use EM_STREAMIN to force richedit control 2.0+ to show any + // text in the non default charset - otherwise it thinks it knows better + // than we do and always shows it in the default one + + // first get the Windows code page for this encoding + long codepage = wxEncodingToCodepage(encoding); + if ( codepage == -1 ) + { + // unknown encoding + return FALSE; + } + + // next translate to Unicode using this code page + int len = ::MultiByteToWideChar(codepage, 0, value, -1, NULL, 0); + +#if wxUSE_WCHAR_T + wxWCharBuffer wchBuf(len); +#else + wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t)); +#endif + + if ( !::MultiByteToWideChar(codepage, 0, value, -1, + (wchar_t *)(const wchar_t *)wchBuf, len) ) + { + wxLogLastError(_T("MultiByteToWideChar")); + } + + // finally, stream it in the control + const wchar_t *wpc = wchBuf; +#endif // wxUSE_UNICODE_MSLU + + EDITSTREAM eds; + wxZeroMemory(eds); + eds.dwCookie = (DWORD)&wpc; + // the cast below is needed for broken (very) old mingw32 headers + eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn; + + if ( !::SendMessage(GetHwnd(), EM_STREAMIN, + SF_TEXT | + SF_UNICODE | + (selectionOnly ? SFF_SELECTION : 0), + (LPARAM)&eds) || eds.dwError ) + { + wxLogLastError(_T("EM_STREAMIN")); + } + +#if !wxUSE_WCHAR_T + free(wchBuf); +#endif // !wxUSE_WCHAR_T + + return TRUE; } -void wxTextCtrl::Paste(void) +#endif // wxUSE_RICHEDIT + +void wxTextCtrl::WriteText(const wxString& value) { - HWND hWnd = (HWND) GetHWND(); - SendMessage(hWnd, WM_PASTE, 0, 0L); + DoWriteText(value); } -void wxTextCtrl::SetEditable(bool editable) +void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly) { - HWND hWnd = (HWND) GetHWND(); - SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); + wxString valueDos; + if ( m_windowStyle & wxTE_MULTILINE ) + valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); + else + valueDos = value; + +#if wxUSE_RICHEDIT + // there are several complications with the rich edit controls here + bool done = FALSE; + if ( IsRich() ) + { + // first, ensure that the new text will be in the default style + if ( !m_defaultStyle.IsDefault() ) + { + long start, end; + GetSelection(&start, &end); + SetStyle(start, end, m_defaultStyle); + } + +#if wxUSE_UNICODE_MSLU + // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x, + // but EM_STREAMIN works + if ( wxUsingUnicowsDll() && GetRichVersion() > 1 ) + { + done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly); + } +#endif // wxUSE_UNICODE_MSLU + +#if !wxUSE_UNICODE + // next check if the text we're inserting must be shown in a non + // default charset -- this only works for RichEdit > 1.0 + if ( GetRichVersion() > 1 ) + { + wxFont font = m_defaultStyle.GetFont(); + if ( !font.Ok() ) + font = GetFont(); + + if ( font.Ok() ) + { + wxFontEncoding encoding = font.GetEncoding(); + if ( encoding != wxFONTENCODING_SYSTEM ) + { + done = StreamIn(valueDos, encoding, selectionOnly); + } + } + } +#endif // !wxUSE_UNICODE + } + + if ( !done ) +#endif // wxUSE_RICHEDIT + { + if ( !selectionOnly ) + { + SetSelection(-1, -1); + } + + ::SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); + } + + AdjustSpaceLimit(); } -void wxTextCtrl::SetInsertionPoint(long pos) +void wxTextCtrl::AppendText(const wxString& text) { - HWND hWnd = (HWND) GetHWND(); -#ifdef __WIN32__ -#if defined(__WIN95__) - if ( m_isRich) - { - CHARRANGE range; - range.cpMin = pos; - range.cpMax = pos; - SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); - } - else -#endif - { - SendMessage(hWnd, EM_SETSEL, pos, pos); - SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); - } -#else - SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos)); -#endif - char *nothing = ""; - SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); + SetInsertionPointEnd(); + + WriteText(text); } -void wxTextCtrl::SetInsertionPointEnd(void) +void wxTextCtrl::Clear() { - long pos = GetLastPosition(); - SetInsertionPoint(pos); + ::SetWindowText(GetHwnd(), wxT("")); } -long wxTextCtrl::GetInsertionPoint(void) const +#ifdef __WIN32__ + +bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event) { -#if defined(__WIN95__) - if (m_isRich) - { - CHARRANGE range; - range.cpMin = 0; - range.cpMax = 0; - SendMessage((HWND) GetHWND(), EM_EXGETSEL, 0, (LPARAM) &range); - return range.cpMin; - } -#endif + SetFocus(); + + size_t lenOld = GetValue().length(); + + wxUint32 code = event.GetRawKeyCode(); + ::keybd_event(code, 0, 0 /* key press */, NULL); + ::keybd_event(code, 0, KEYEVENTF_KEYUP, NULL); - DWORD Pos=(DWORD)SendMessage((HWND) GetHWND(), EM_GETSEL, 0, 0L); - return Pos&0xFFFF; + // 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; } -long wxTextCtrl::GetLastPosition(void) const +#endif // __WIN32__ + +// ---------------------------------------------------------------------------- +// Clipboard operations +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Copy() { - HWND hWnd = (HWND) GetHWND(); + if (CanCopy()) + { + ::SendMessage(GetHwnd(), WM_COPY, 0, 0L); + } +} - // Will always return a number > 0 (according to docs) - int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); +void wxTextCtrl::Cut() +{ + if (CanCut()) + { + ::SendMessage(GetHwnd(), WM_CUT, 0, 0L); + } +} - // This gets the char index for the _beginning_ of the last line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); - - // 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); +void wxTextCtrl::Paste() +{ + if (CanPaste()) + { + ::SendMessage(GetHwnd(), WM_PASTE, 0, 0L); + } +} - return (long)(charIndex + lineLength); +bool wxTextCtrl::CanCopy() const +{ + // Can copy if there's a selection + long from, to; + GetSelection(&from, &to); + return from != to; } -void wxTextCtrl::Replace(long from, long to, const wxString& value) +bool wxTextCtrl::CanCut() const { - HWND hWnd = (HWND) GetHWND(); - long fromChar = from; - long toChar = to; - - // Set selection and remove it -#ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, fromChar, toChar); -#else - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); -#endif - SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); + return CanCopy() && IsEditable(); +} + +bool wxTextCtrl::CanPaste() const +{ + if ( !IsEditable() ) + return FALSE; + +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + UINT cf = 0; // 0 == any format + + return ::SendMessage(GetHwnd(), EM_CANPASTE, cf, 0) != 0; + } +#endif // wxUSE_RICHEDIT + + // Standard edit control: check for straight text on clipboard + if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) + return FALSE; - // Now replace with 'value', by pasting. - wxSetClipboardData(wxDF_TEXT, (wxObject *) (const char *)value, 0, 0); + bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0; + ::CloseClipboard(); - // Paste into edit control - SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); + return isTextAvailable; } -void wxTextCtrl::Remove(long from, long to) +// ---------------------------------------------------------------------------- +// Accessors +// ---------------------------------------------------------------------------- + +void wxTextCtrl::SetEditable(bool editable) { - HWND hWnd = (HWND) GetHWND(); - long fromChar = from; - long toChar = to; - - // Cut all selected text -#ifdef __WIN32__ - SendMessage(hWnd, EM_SETSEL, fromChar, toChar); -#else - SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); -#endif - SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); + HWND hWnd = GetHwnd(); + SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); } -void wxTextCtrl::SetSelection(long from, long to) +void wxTextCtrl::SetInsertionPoint(long pos) { - HWND hWnd = (HWND) GetHWND(); - long fromChar = from; - long toChar = to; - // if from and to are both -1, it means - // (in wxWindows) that all text should be selected. - // This translates into Windows convention - if ((from == -1) && (to == -1)) + DoSetSelection(pos, pos); +} + +void wxTextCtrl::SetInsertionPointEnd() +{ + long pos; + +#if wxUSE_RICHEDIT + if ( m_verRichEdit == 1 ) { - fromChar = 0; - toChar = -1; + // we don't have to waste time calling GetLastPosition() in this case + pos = -1; } - -#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 + else // !RichEdit 1.0 +#endif // wxUSE_RICHEDIT + { + pos = GetLastPosition(); + } + + SetInsertionPoint(pos); } -bool wxTextCtrl::LoadFile(const wxString& file) +long wxTextCtrl::GetInsertionPoint() const { - if (!FileExists(WXSTRINGCAST file)) - return FALSE; +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + CHARRANGE range; + range.cpMin = 0; + range.cpMax = 0; + SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); + return range.cpMin; + } +#endif // wxUSE_RICHEDIT - m_fileName = file; + DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); + return Pos & 0xFFFF; +} - Clear(); +long wxTextCtrl::GetLastPosition() const +{ + int numLines = GetNumberOfLines(); + long posStartLastLine = XYToPosition(0, numLines - 1); -// ifstream input(WXSTRINGCAST file, ios::nocreate | ios::in); - ifstream input(WXSTRINGCAST file, ios::in); + long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine); - if (!input.bad()) - { - // Previously a SETSEL/REPLACESEL call-pair were done to insert - // line by line into the control. Apart from being very slow this - // was limited to 32K of text by the external interface presenting - // positions as signed shorts. Now load in one chunk... - // Note use of 'farmalloc' as in Borland 3.1 'size_t' is 16-bits... + return posStartLastLine + lenLastLine; +} - struct stat stat_buf; - if (stat(file, &stat_buf) < 0) - return FALSE; -// char *tmp_buffer = (char*)farmalloc(stat_buf.st_size+1); - // This may need to be a bigger buffer than the file size suggests, - // if it's a UNIX file. Give it an extra 1000 just in case. - char *tmp_buffer = (char*)farmalloc((size_t)(stat_buf.st_size+1+1000)); - long no_lines = 0; - long pos = 0; - while (!input.eof() && input.peek() != EOF) - { - input.getline(wxBuffer, 500); - int len = strlen(wxBuffer); - wxBuffer[len] = 13; - wxBuffer[len+1] = 10; - wxBuffer[len+2] = 0; - strcpy(tmp_buffer+pos, wxBuffer); - pos += strlen(wxBuffer); - no_lines++; - } - -// SendMessage((HWND) GetHWND(), WM_SETTEXT, 0, (LPARAM)tmp_buffer); - SetWindowText((HWND) GetHWND(), tmp_buffer); - SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L); - farfree(tmp_buffer); - - return TRUE; - } - return FALSE; -} - -// If file is null, try saved file name first -// Returns TRUE if succeeds. -bool wxTextCtrl::SaveFile(const wxString& file) -{ - wxString theFile(file); - if (theFile == "") - theFile = m_fileName; - if (theFile == "") - return FALSE; - m_fileName = theFile; +// If the return values from and to are the same, there is no +// selection. +void wxTextCtrl::GetSelection(long* from, long* to) const +{ +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + CHARRANGE charRange; + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange); - ofstream output((char*) (const char*) theFile); - if (output.bad()) - return FALSE; + *from = charRange.cpMin; + *to = charRange.cpMax; + } + else +#endif // !wxUSE_RICHEDIT + { + DWORD dwStart, dwEnd; + ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd); - // This will only save 64K max - unsigned long nbytes = SendMessage((HWND) GetHWND(), WM_GETTEXTLENGTH, 0, 0); - char *tmp_buffer = (char*)farmalloc((size_t)(nbytes+1)); - SendMessage((HWND) GetHWND(), WM_GETTEXT, (WPARAM)(nbytes+1), (LPARAM)tmp_buffer); - char *pstr = tmp_buffer; + *from = dwStart; + *to = dwEnd; + } +} - // Convert \r\n to just \n - while (*pstr) - { - if (*pstr != '\r') - output << *pstr; - pstr++; - } +bool wxTextCtrl::IsEditable() const +{ + // strangely enough, we may be called before the control is created: our + // own Create() calls MSWGetStyle() which calls AcceptsFocus() which calls + // us + if ( !m_hWnd ) + return TRUE; - farfree(tmp_buffer); - SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L); + long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); - return TRUE; + return (style & ES_READONLY) == 0; } -void wxTextCtrl::WriteText(const wxString& text) +// ---------------------------------------------------------------------------- +// selection +// ---------------------------------------------------------------------------- + +void wxTextCtrl::SetSelection(long from, long to) { - // Covert \n to \r\n - int len = text.Length(); - char *newtext = new char[(len*2)+1]; - int i = 0; - int j = 0; - while (i < len) + // if from and to are both -1, it means (in wxWindows) that all text should + // be selected - translate into Windows convention + if ( (from == -1) && (to == -1) ) { - if (text[i] == '\n') - { - newtext[j] = '\r'; - j ++; - } - newtext[j] = text[i]; - i ++; - j ++; + from = 0; + to = -1; } - newtext[j] = 0; - SendMessage((HWND) GetHWND(), EM_REPLACESEL, 0, (LPARAM)newtext); - delete[] newtext; + + DoSetSelection(from, to); } -void wxTextCtrl::Clear(void) +void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret) { -// SendMessage((HWND) GetHWND(), WM_SETTEXT, 0, (LPARAM)""); - SetWindowText((HWND) GetHWND(), ""); + HWND hWnd = GetHwnd(); + +#ifdef __WIN32__ +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + CHARRANGE range; + range.cpMin = from; + range.cpMax = to; + SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); + } + else +#endif // wxUSE_RICHEDIT + { + SendMessage(hWnd, EM_SETSEL, (WPARAM)from, (LPARAM)to); + } + + if ( scrollCaret ) + { + SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); + } +#else // Win16 + // WPARAM is 0: selection is scrolled into view + SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(from, to)); +#endif // Win32/16 } -bool wxTextCtrl::IsModified(void) const +// ---------------------------------------------------------------------------- +// Editing +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Replace(long from, long to, const wxString& value) { - return (SendMessage((HWND) GetHWND(), EM_GETMODIFY, 0, 0) != 0); + // Set selection and remove it + DoSetSelection(from, to, FALSE /* don't scroll caret into view */); + + SendMessage(GetHwnd(), EM_REPLACESEL, +#ifdef __WIN32__ + TRUE, +#else + FALSE, +#endif + (LPARAM)value.c_str()); +} + +void wxTextCtrl::Remove(long from, long to) +{ + Replace(from, to, _T("")); +} + +bool wxTextCtrl::LoadFile(const wxString& file) +{ + if ( wxTextCtrlBase::LoadFile(file) ) + { + // update the size limit if needed + AdjustSpaceLimit(); + + return TRUE; + } + + return FALSE; +} + +bool wxTextCtrl::IsModified() const +{ + return SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0; } // Makes 'unmodified' -void wxTextCtrl::DiscardEdits(void) +void wxTextCtrl::DiscardEdits() { - SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L); + SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); } -/* - * Some of the following functions are yet to be implemented - * - */ - -int wxTextCtrl::GetNumberOfLines(void) const +int wxTextCtrl::GetNumberOfLines() const { - return (int)SendMessage((HWND) GetHWND(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); + return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); } long wxTextCtrl::XYToPosition(long x, long y) const { - HWND hWnd = (HWND) GetHWND(); - // This gets the char index for the _beginning_ of this line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0); - return (long)(x + charIndex); + long charIndex = SendMessage(GetHwnd(), EM_LINEINDEX, (WPARAM)y, (LPARAM)0); + + return charIndex + x; } -void wxTextCtrl::PositionToXY(long pos, long *x, long *y) const +bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const { - HWND hWnd = (HWND) GetHWND(); + HWND hWnd = GetHwnd(); // This gets the line number containing the character - int lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0); + long lineNo; +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + lineNo = SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); + } + else +#endif // wxUSE_RICHEDIT + { + lineNo = SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); + } + + if ( lineNo == -1 ) + { + // no such line + return FALSE; + } + // This gets the char index for the _beginning_ of this line - int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); + long charIndex = SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); + if ( charIndex == -1 ) + { + return FALSE; + } + // The X position must therefore be the different between pos and charIndex - *x = (long)(pos - charIndex); - *y = (long)lineNo; + if ( x ) + *x = pos - charIndex; + if ( y ) + *y = lineNo; + + return TRUE; } void wxTextCtrl::ShowPosition(long pos) { - HWND hWnd = (HWND) GetHWND(); + 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: @@ -683,401 +1037,766 @@ void wxTextCtrl::ShowPosition(long pos) int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L); int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L); - - int linesToScroll = specifiedLineLineNo - currentLineLineNo; -/* - wxDebugMsg("Caret line: %d; Current visible line: %d; Specified line: %d; lines to scroll: %d\n", - currentLineLineNo1, currentLineLineNo, specifiedLineLineNo, linesToScroll); -*/ + int linesToScroll = specifiedLineLineNo - currentLineLineNo; if (linesToScroll != 0) - (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)MAKELPARAM(linesToScroll, 0)); + (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll); +} + +long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const +{ + return ::SendMessage(GetHwnd(), EM_LINELENGTH, (WPARAM)pos, 0); } int wxTextCtrl::GetLineLength(long lineNo) const { - long charIndex = XYToPosition(0, lineNo); - HWND hWnd = (HWND) GetHWND(); - int len = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0); - return len; + long pos = XYToPosition(0, lineNo); + + return GetLengthOfLineContainingPos(pos); } wxString wxTextCtrl::GetLineText(long lineNo) const { - HWND hWnd = (HWND) GetHWND(); - *(WORD *)wxBuffer = 512; - int noChars = (int)SendMessage(hWnd, EM_GETLINE, (WPARAM)lineNo, (LPARAM)wxBuffer); - wxBuffer[noChars] = 0; - return wxString(wxBuffer); + 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; + wxChar *buf = str.GetWriteBuf(len); + + *(WORD *)buf = (WORD)len; + len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); + buf[len] = 0; + + str.UngetWriteBuf(len); + + return str; +} + +void wxTextCtrl::SetMaxLength(unsigned long len) +{ + ::SendMessage(GetHwnd(), EM_LIMITTEXT, len, 0); +} + +// ---------------------------------------------------------------------------- +// Undo/redo +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Undo() +{ + if (CanUndo()) + { + ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + } +} + +void wxTextCtrl::Redo() +{ + if (CanRedo()) + { + // Same as Undo, since Undo undoes the undo, i.e. a redo. + ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + } +} + +bool wxTextCtrl::CanUndo() const +{ + return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0; +} + +bool wxTextCtrl::CanRedo() const +{ + return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0; } -/* - * Text item - */ - +// ---------------------------------------------------------------------------- +// implemenation details +// ---------------------------------------------------------------------------- + void wxTextCtrl::Command(wxCommandEvent & event) { - SetValue (event.GetString()); - ProcessCommand (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]); - } -} - -// The streambuf code was partly taken from chapter 3 by Jerry Schwarz of -// AT&T's "C++ Lanuage System Release 3.0 Library Manual" - Stein Somers - -//========================================================================= -// Called then the buffer is full (gcc 2.6.3) -// or when "endl" is output (Borland 4.5) -//========================================================================= -// Class declaration using multiple inheritance doesn't work properly for -// Borland. See note in wb_text.h. -#ifndef NO_TEXT_WINDOW_STREAM -int wxTextCtrl::overflow(int c) -{ - // Make sure there is a holding area - if ( allocate()==EOF ) - { - wxError("Streambuf allocation failed","Internal error"); - return EOF; - } - - // Verify that there are no characters in get area - if ( gptr() && gptr() < egptr() ) - { - wxError("Who's trespassing my get area?","Internal error"); - return EOF; - } - - // Reset get area - setg(0,0,0); - - // Make sure there is a put area - if ( ! pptr() ) - { -/* This doesn't seem to be fatal so comment out error message */ -// wxError("Put area not opened","Internal error"); - setp( base(), base() ); - } - - // Determine how many characters have been inserted but no consumed - int plen = pptr() - pbase(); - - // Now Jerry relies on the fact that the buffer is at least 2 chars - // long, but the holding area "may be as small as 1" ??? - // And we need an additional \0, so let's keep this inefficient but - // safe copy. - - // If c!=EOF, it is a character that must also be comsumed - int xtra = c==EOF? 0 : 1; - - // Write temporary C-string to wxTextWindow - { - char *txt = new char[plen+xtra+1]; - memcpy(txt, pbase(), plen); - txt[plen] = (char)c; // append c - txt[plen+xtra] = '\0'; // append '\0' or overwrite c - // If the put area already contained \0, output will be truncated there - WriteText(txt); - delete[] txt; - } - - // Reset put area - setp(pbase(), epptr()); - -#if defined(__WATCOMC__) - return __NOT_EOF; -#elif defined(zapeof) // HP-UX (all cfront based?) - return zapeof(c); + // By default, load the first file into the text window. + if (event.GetNumberOfFiles() > 0) + { + LoadFile(event.GetFiles()[0]); + } +} + +// ---------------------------------------------------------------------------- +// kbd input processing +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg) +{ + MSG *msg = (MSG *)pMsg; + + // check for our special keys here: if we don't do it and the parent frame + // uses them as accelerators, they wouldn't work at all, so we disable + // usual preprocessing for them + if ( msg->message == WM_KEYDOWN ) + { + WORD vkey = (WORD) msg->wParam; + if ( (HIWORD(msg->lParam) & KF_ALTDOWN) == KF_ALTDOWN ) + { + if ( vkey == VK_BACK ) + return FALSE; + } + else // no Alt + { + if ( wxIsCtrlDown() ) + { + switch ( vkey ) + { + case 'C': + case 'V': + case 'X': + case VK_INSERT: + case VK_DELETE: + case VK_HOME: + case VK_END: + return FALSE; + } + } + else if ( wxIsShiftDown() ) + { + if ( vkey == VK_INSERT || vkey == VK_DELETE ) + return FALSE; + } + } + } + + return wxControl::MSWShouldPreProcessMessage(pMsg); +} + +void wxTextCtrl::OnChar(wxKeyEvent& event) +{ + switch ( event.KeyCode() ) + { + case WXK_RETURN: + if ( !(m_windowStyle & wxTE_MULTILINE) ) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); + InitCommandEvent(event); + event.SetString(GetValue()); + if ( GetEventHandler()->ProcessEvent(event) ) + return; + } + //else: multiline controls need Enter for themselves + + break; + + case WXK_TAB: + // always produce navigation event - even if we process TAB + // ourselves the fact that we got here means that the user code + // decided to skip processing of this TAB - probably to let it + // do its default job. + { + wxNavigationKeyEvent eventNav; + eventNav.SetDirection(!event.ShiftDown()); + eventNav.SetWindowChange(event.ControlDown()); + eventNav.SetEventObject(this); + + if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) ) + return; + } + break; + } + + // no, we didn't process it + event.Skip(); +} + +long wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + // we always want the characters and the arrows + if ( nMsg == WM_GETDLGCODE ) + { + // we always want the chars and the arrows + long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; + + // we may have several different cases: + // 1. normal case: both TAB and ENTER are used for dialog navigation + // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next + // control in the dialog + // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation + // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to + // the next control + if ( m_windowStyle & wxTE_PROCESS_ENTER ) + lDlgCode |= DLGC_WANTMESSAGE; + if ( m_windowStyle & wxTE_PROCESS_TAB ) + lDlgCode |= DLGC_WANTTAB; + + return lDlgCode; + } + + return wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam); +} + +bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) +{ + switch (param) + { + 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); + InitCommandEvent(event); + event.SetString(GetValue()); + ProcessCommand(event); + } + break; + + case EN_MAXTEXT: + // the text size limit has been hit - increase it + if ( !AdjustSpaceLimit() ) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId); + InitCommandEvent(event); + event.SetString(GetValue()); + ProcessCommand(event); + } + break; + + // the other notification messages are not processed + case EN_UPDATE: + case EN_ERRSPACE: + case EN_HSCROLL: + case EN_VSCROLL: + return FALSE; + default: + return FALSE; + } + + // processed + return TRUE; +} + +WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor), +#if wxUSE_CTL3D + WXUINT message, + WXWPARAM wParam, + WXLPARAM lParam #else - return c!=EOF ? c : 0; // this should make everybody happy + WXUINT WXUNUSED(message), + WXWPARAM WXUNUSED(wParam), + WXLPARAM WXUNUSED(lParam) #endif + ) +{ +#if wxUSE_CTL3D + if ( m_useCtl3D ) + { + HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); + return (WXHBRUSH) hbrush; + } +#endif // wxUSE_CTL3D + + HDC hdc = (HDC)pDC; + if (GetParent()->GetTransparentBackground()) + SetBkMode(hdc, TRANSPARENT); + else + SetBkMode(hdc, OPAQUE); + + wxColour colBack = GetBackgroundColour(); -/* OLD CODE - int len = pptr() - pbase(); - char *txt = new char[len+1]; - strncpy(txt, pbase(), len); - txt[len] = '\0'; - (*this) << txt; - setp(pbase(), epptr()); - delete[] txt; - return EOF; -*/ -} - -//========================================================================= -// called then "endl" is output (gcc) or then explicit sync is done (Borland) -//========================================================================= -int wxTextCtrl::sync(void) -{ - // Verify that there are no characters in get area - if ( gptr() && gptr() < egptr() ) - { - wxError("Who's trespassing my get area?","Internal error"); - return EOF; - } - - if ( pptr() && pptr() > pbase() ) return overflow(EOF); - - return 0; -/* OLD CODE - int len = pptr() - pbase(); - char *txt = new char[len+1]; - strncpy(txt, pbase(), len); - txt[len] = '\0'; - (*this) << txt; - setp(pbase(), epptr()); - delete[] txt; - return 0; -*/ -} - -//========================================================================= -// Should not be called by a "ostream". Used by a "istream" -//========================================================================= -int wxTextCtrl::underflow(void) -{ - return EOF; + if (!IsEnabled() && (GetWindowStyle() & wxTE_MULTILINE) == 0) + colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE); + + ::SetBkColor(hdc, wxColourToRGB(colBack)); + ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour())); + + wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID); + + return (WXHBRUSH)brush->GetResourceHandle(); } + +// In WIN16, need to override normal erasing because +// Ctl3D doesn't use the wxWindows background colour. +#ifdef __WIN16__ +void wxTextCtrl::OnEraseBackground(wxEraseEvent& event) +{ + wxColour col(m_backgroundColour); + +#if wxUSE_CTL3D + if (m_useCtl3D) + col = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW); #endif -wxTextCtrl& wxTextCtrl::operator<<(const wxString& s) + RECT rect; + ::GetClientRect(GetHwnd(), &rect); + + COLORREF ref = wxColourToRGB(col); + HBRUSH hBrush = ::CreateSolidBrush(ref); + if ( !hBrush ) + wxLogLastError(wxT("CreateSolidBrush")); + + HDC hdc = (HDC)event.GetDC()->GetHDC(); + + int mode = ::SetMapMode(hdc, MM_TEXT); + + ::FillRect(hdc, &rect, hBrush); + ::DeleteObject(hBrush); + ::SetMapMode(hdc, mode); + +} +#endif // Win16 + +bool wxTextCtrl::AdjustSpaceLimit() { - WriteText(s); - return *this; +#ifndef __WIN16__ + unsigned int limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); + + // HACK: we try to automatically extend the limit for the amount of text + // to allow (interactively) entering more than 64Kb of text under + // Win9x but we shouldn't reset the text limit which was previously + // set explicitly with SetMaxLength() + // + // we could solve this by storing the limit we set in wxTextCtrl but + // to save space we prefer to simply test here the actual limit + // value: we consider that SetMaxLength() can only be called for + // values < 32Kb + if ( limit < 0x8000 ) + { + // we've got more text than limit set by SetMaxLength() + return FALSE; + } + + unsigned int len = ::GetWindowTextLength(GetHwnd()); + if ( len >= limit ) + { + limit = len + 0x8000; // 32Kb + +#if wxUSE_RICHEDIT + if ( IsRich() ) + { + // as a nice side effect, this also allows passing limit > 64Kb + ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit); + } + else +#endif // wxUSE_RICHEDIT + { + if ( limit > 0xffff ) + { + // this will set it to a platform-dependent maximum (much more + // than 64Kb under NT) + limit = 0; + } + + ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); + } + } +#endif // !Win16 + + // we changed the limit + return TRUE; } -wxTextCtrl& wxTextCtrl::operator<<(float f) +bool wxTextCtrl::AcceptsFocus() const { - wxString str; - str.Printf("%.2f", f); - WriteText(str); - return *this; + // we don't want focus if we can't be edited + return IsEditable() && wxControl::AcceptsFocus(); } -wxTextCtrl& wxTextCtrl::operator<<(double d) +wxSize wxTextCtrl::DoGetBestSize() const { - wxString str; - str.Printf("%.2f", d); - WriteText(str); - return *this; + int cx, cy; + wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); + + int wText = DEFAULT_ITEM_WIDTH; + + int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); + if ( m_windowStyle & wxTE_MULTILINE ) + { + hText *= wxMax(GetNumberOfLines(), 5); + } + //else: for single line control everything is ok + + return wxSize(wText, hText); } -wxTextCtrl& wxTextCtrl::operator<<(int i) +// ---------------------------------------------------------------------------- +// standard handlers for standard edit menu events +// ---------------------------------------------------------------------------- + +void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event)) { - wxString str; - str.Printf("%d", i); - WriteText(str); - return *this; + Cut(); } -wxTextCtrl& wxTextCtrl::operator<<(long i) +void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event)) { - wxString str; - str.Printf("%ld", i); - WriteText(str); - return *this; + Copy(); } -wxTextCtrl& wxTextCtrl::operator<<(const char c) +void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event)) { - char buf[2]; + Paste(); +} - buf[0] = c; - buf[1] = 0; - WriteText(buf); - return *this; +void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event)) +{ + Undo(); } -WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, WXLPARAM lParam) +void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event)) { -#if CTL3D - if ( m_useCtl3D ) - { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; - } -#endif + Redo(); +} - if (GetParent()->GetTransparentBackground()) - SetBkMode((HDC) pDC, TRANSPARENT); - else - SetBkMode((HDC) pDC, OPAQUE); +void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) +{ + event.Enable( CanCut() ); +} - ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); +void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) +{ + event.Enable( CanCopy() ); +} - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); +void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) +{ + event.Enable( CanPaste() ); +} - // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush - // has a zero usage count. - // NOT NOW - will be cleaned up at end of app. -// backgroundBrush->RealizeResource(); - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); +void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) +{ + event.Enable( CanUndo() ); } -void wxTextCtrl::OnChar(wxKeyEvent& event) +void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) { - if ( (event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER)) - { - wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); - event.SetEventObject( this ); - if ( GetEventHandler()->ProcessEvent(event) ) - return; - } - else if ( event.KeyCode() == WXK_TAB ) { - wxNavigationKeyEvent event; - event.SetDirection(!(::GetKeyState(VK_SHIFT) & 0x100)); - event.SetWindowChange(FALSE); - event.SetEventObject(this); + event.Enable( CanRedo() ); +} - if ( GetEventHandler()->ProcessEvent(event) ) - return; - } +// the rest of the file only deals with the rich edit controls +#if wxUSE_RICHEDIT - event.Skip(); -} +// ---------------------------------------------------------------------------- +// EN_LINK processing +// ---------------------------------------------------------------------------- -long wxTextCtrl::MSWGetDlgCode() +bool wxTextCtrl::MSWOnNotify(int WXUNUSED(idCtrl), WXLPARAM lParam, WXLPARAM *result) { - long lRc = DLGC_WANTCHARS | DLGC_WANTARROWS; - if ( m_windowStyle & wxPROCESS_ENTER ) - lRc |= DLGC_WANTMESSAGE; - else if ( m_windowStyle & wxTE_MULTILINE ) - lRc |= DLGC_WANTMESSAGE; + NMHDR *hdr = (NMHDR* )lParam; + if ( hdr->code == EN_LINK ) + { + ENLINK *enlink = (ENLINK *)hdr; + + switch ( enlink->msg ) + { + case WM_SETCURSOR: + // ok, so it is hardcoded - do we really nee to customize it? + ::SetCursor(GetHcursorOf(wxCursor(wxCURSOR_HAND))); + *result = TRUE; + break; + case WM_MOUSEMOVE: + case WM_LBUTTONDOWN: + case WM_LBUTTONUP: + case WM_LBUTTONDBLCLK: + case WM_RBUTTONDOWN: + case WM_RBUTTONUP: + case WM_RBUTTONDBLCLK: + // send a mouse event + { + static const wxEventType eventsMouse[] = + { + wxEVT_MOTION, + wxEVT_LEFT_DOWN, + wxEVT_LEFT_UP, + wxEVT_LEFT_DCLICK, + wxEVT_RIGHT_DOWN, + wxEVT_RIGHT_UP, + wxEVT_RIGHT_DCLICK, + }; + + // the event ids are consecutive + wxMouseEvent + evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]); + + InitMouseEvent(evtMouse, + GET_X_LPARAM(enlink->lParam), + GET_Y_LPARAM(enlink->lParam), + enlink->wParam); + + wxTextUrlEvent event(m_windowId, evtMouse, + enlink->chrg.cpMin, + enlink->chrg.cpMax); + + InitCommandEvent(event); + + *result = ProcessCommand(event); + } + break; + } + + return TRUE; + } - return lRc; + // not processed + return FALSE; } -void wxTextCtrl::OnEraseBackground(wxEraseEvent& event) +// ---------------------------------------------------------------------------- +// colour setting for the rich edit controls +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::SetBackgroundColour(const wxColour& colour) { - if ( m_windowStyle & wxTE_MULTILINE ) + if ( !wxTextCtrlBase::SetBackgroundColour(colour) ) { - // No flicker - only problem is we probably can't change the background - Default(); -/* - RECT rect; - ::GetClientRect((HWND) GetHWND(), &rect); - - HBRUSH hBrush = ::CreateSolidBrush(PALETTERGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - int mode = ::SetMapMode((HDC) event.GetDC()->GetHDC(), MM_TEXT); + // colour didn't really change + return FALSE; + } - ::FillRect ((HDC) event.GetDC()->GetHDC(), &rect, hBrush); - ::DeleteObject(hBrush); - ::SetMapMode((HDC) event.GetDC()->GetHDC(), mode); -*/ + if ( IsRich() ) + { + // rich edit doesn't use WM_CTLCOLOR, hence we need to send + // EM_SETBKGNDCOLOR additionally + ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour)); } -// wxWindow::OnEraseBackground(event); + + return TRUE; } -bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) +bool wxTextCtrl::SetForegroundColour(const wxColour& colour) { -/* - // Debugging - wxDebugMsg("Edit control %d: ", (int)id); - switch (param) - { - case EN_SETFOCUS: - wxDebugMsg("EN_SETFOCUS\n"); - break; - case EN_KILLFOCUS: - wxDebugMsg("EN_KILLFOCUS\n"); - break; - case EN_CHANGE: - wxDebugMsg("EN_CHANGE\n"); - break; - case EN_UPDATE: - wxDebugMsg("EN_UPDATE\n"); - break; - case EN_ERRSPACE: - wxDebugMsg("EN_ERRSPACE\n"); - break; - case EN_MAXTEXT: - wxDebugMsg("EN_MAXTEXT\n"); - break; - case EN_HSCROLL: - wxDebugMsg("EN_HSCROLL\n"); - break; - case EN_VSCROLL: - wxDebugMsg("EN_VSCROLL\n"); - break; - default: - wxDebugMsg("Unknown EDIT notification\n"); - break; - } -*/ - switch (param) - { - case EN_SETFOCUS: - case EN_KILLFOCUS: - { - wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS - : wxEVT_SET_FOCUS, - m_windowId); - event.SetEventObject( this ); - 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; - - // the other notification messages are not processed - case EN_UPDATE: - case EN_ERRSPACE: - case EN_MAXTEXT: - case EN_HSCROLL: - case EN_VSCROLL: - default: - return FALSE; - } - - // processed - return TRUE; -} - - -// For Rich Edit controls. Do we need it? -#if 0 -#if defined(__WIN95__) -bool wxTextCtrl::MSWNotify(WXWPARAM wParam, WXLPARAM lParam) -{ - wxCommandEvent event(0, m_windowId); - int eventType = 0; - NMHDR *hdr1 = (NMHDR *) lParam; - switch ( hdr1->code ) - { - // Insert case code here - default : - return wxControl::MSWNotify(wParam, lParam); - break; - } - - event.SetEventObject( this ); - event.SetEventType(eventType); - - if ( !ProcessEvent(event) ) - return FALSE; - - return TRUE; + if ( !wxTextCtrlBase::SetForegroundColour(colour) ) + { + // colour didn't really change + return FALSE; + } + + if ( IsRich() ) + { + // change the colour of everything + CHARFORMAT cf; + wxZeroMemory(cf); + cf.cbSize = sizeof(cf); + cf.dwMask = CFM_COLOR; + cf.crTextColor = wxColourToRGB(colour); + ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf); + } + + return TRUE; } + +// ---------------------------------------------------------------------------- +// styling support for rich edit controls +// ---------------------------------------------------------------------------- + +bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style) +{ + if ( !IsRich() ) + { + // can't do it with normal text control + return FALSE; + } + + // the richedit 1.0 doesn't handle setting background colour, so don't + // even try to do anything if it's the only thing we want to change + if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() ) + { + // nothing to do: return TRUE if there was really nothing to do and + // FALSE if we failed to set bg colour + return !style.HasBackgroundColour(); + } + + // order the range if needed + if ( start > end ) + { + long tmp = start; + start = end; + end = tmp; + } + + // we can only change the format of the selection, so select the range we + // want and restore the old selection later + long startOld, endOld; + GetSelection(&startOld, &endOld); + + // but do we really have to change the selection? + bool changeSel = start != startOld || end != endOld; + + if ( changeSel ) + { + DoSetSelection(start, end, FALSE /* don't scroll caret into view */); + } + + // initialize CHARFORMAT struct +#if wxUSE_RICHEDIT2 + CHARFORMAT2 cf; +#else + CHARFORMAT cf; #endif + + wxZeroMemory(cf); + + // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple + // CHARFORMAT in that case +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit == 1 ) + { + // this is the only thing the control is going to grok + cf.cbSize = sizeof(CHARFORMAT); + } + else #endif + { + // CHARFORMAT or CHARFORMAT2 + cf.cbSize = sizeof(cf); + } + + if ( style.HasFont() ) + { + // VZ: CFM_CHARSET doesn't seem to do anything at all in RichEdit 2.0 + // but using it doesn't seem to hurt neither so leaving it for now + + cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET | + CFM_ITALIC | CFM_BOLD | CFM_UNDERLINE; + + // fill in data from LOGFONT but recalculate lfHeight because we need + // the real height in twips and not the negative number which + // wxFillLogFont() returns (this is correct in general and works with + // the Windows font mapper, but not here) + LOGFONT lf; + wxFillLogFont(&lf, &style.GetFont()); + cf.yHeight = 20*style.GetFont().GetPointSize(); // 1 pt = 20 twips + cf.bCharSet = lf.lfCharSet; + cf.bPitchAndFamily = lf.lfPitchAndFamily; + wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) ); + + // also deal with underline/italic/bold attributes: note that we must + // always set CFM_ITALIC &c bits in dwMask, even if we don't set the + // style to allow clearing it + if ( lf.lfItalic ) + { + cf.dwEffects |= CFE_ITALIC; + } + + if ( lf.lfWeight == FW_BOLD ) + { + cf.dwEffects |= CFE_BOLD; + } + + if ( lf.lfUnderline ) + { + cf.dwEffects |= CFE_UNDERLINE; + } + + // strikeout fonts are not supported by wxWindows + } + + if ( style.HasTextColour() ) + { + cf.dwMask |= CFM_COLOR; + cf.crTextColor = wxColourToRGB(style.GetTextColour()); + } + +#if wxUSE_RICHEDIT2 + if ( m_verRichEdit != 1 && style.HasBackgroundColour() ) + { + cf.dwMask |= CFM_BACKCOLOR; + cf.crBackColor = wxColourToRGB(style.GetBackgroundColour()); + } +#endif // wxUSE_RICHEDIT2 + + // do format the selection + bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, + SCF_SELECTION, (LPARAM)&cf) != 0; + if ( !ok ) + { + wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed")); + } + + if ( changeSel ) + { + // restore the original selection + DoSetSelection(startOld, endOld, FALSE); + } + + return ok; +} + +// ---------------------------------------------------------------------------- +// wxRichEditModule +// ---------------------------------------------------------------------------- + +bool wxRichEditModule::OnInit() +{ + // don't do anything - we will load it when needed + return TRUE; +} + +void wxRichEditModule::OnExit() +{ + for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ ) + { + if ( ms_hRichEdit[i] ) + { + ::FreeLibrary(ms_hRichEdit[i]); + } + } +} + +/* static */ +bool wxRichEditModule::Load(int version) +{ + // we don't support loading richedit 3.0 as I don't know how to distinguish + // it from 2.0 anyhow + wxCHECK_MSG( version == 1 || version == 2, FALSE, + _T("incorrect richedit control version requested") ); + + // make it the index in the array + version--; + + if ( ms_hRichEdit[version] == (HINSTANCE)-1 ) + { + // we had already tried to load it and failed + return FALSE; + } + + if ( ms_hRichEdit[version] ) + { + // we've already got this one + return TRUE; + } + + wxString dllname = version ? _T("riched20") : _T("riched32"); + dllname += _T(".dll"); + + ms_hRichEdit[version] = ::LoadLibrary(dllname); + + if ( !ms_hRichEdit[version] ) + { + wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str()); + + ms_hRichEdit[version] = (HINSTANCE)-1; + + return FALSE; + } + + return TRUE; +} + +#endif // wxUSE_RICHEDIT +#endif // wxUSE_TEXTCTRL