/////////////////////////////////////////////////////////////////////////////
-// Name: textctrl.cpp
+// Name: msw/textctrl.cpp
// Purpose: wxTextCtrl
// Author: Julian Smart
// Modified by:
#pragma hdrstop
#endif
+#if wxUSE_TEXTCTRL
+
#ifndef WX_PRECOMP
#include "wx/textctrl.h"
#include "wx/settings.h"
#include "wx/app.h"
#endif
+#include "wx/module.h"
+
#if wxUSE_CLIPBOARD
#include "wx/clipbrd.h"
#endif
#include <stdlib.h>
#include <sys/types.h>
-#if wxUSE_IOSTREAMH
-# include <fstream.h>
-#else
-# include <fstream>
+#if wxUSE_RICHEDIT && (!defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__))
+ #include <richedit.h>
#endif
-#if wxUSE_RICHEDIT
- #include <richedit.h>
+// old mingw32 doesn't define this
+#ifndef CFM_CHARSET
+ #define CFM_CHARSET 0x08000000
+#endif // CFM_CHARSET
+
+#ifndef CFM_BACKCOLOR
+ #define CFM_BACKCOLOR 0x04000000
+#endif
+
+// cygwin does not have these defined for richedit
+#ifndef ENM_LINK
+ #define ENM_LINK 0x04000000
+#endif
+
+#ifndef EM_AUTOURLDETECT
+ #define EM_AUTOURLDETECT (WM_USER + 91)
+#endif
+
+#ifndef EN_LINK
+ #define EN_LINK 0x070b
+
+ typedef struct _enlink
+ {
+ NMHDR nmhdr;
+ UINT msg;
+ WPARAM wParam;
+ LPARAM lParam;
+ CHARRANGE chrg;
+ } ENLINK;
+#endif // ENLINK
+
+#ifndef SF_UNICODE
+ #define SF_UNICODE 0x0010
#endif
-#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 if needed
+class wxRichEditModule : public wxModule
+{
+public:
+ virtual bool OnInit();
+ virtual void OnExit();
+
+ // get the version currently loaded, -1 if none
+ static int GetLoadedVersion() { return ms_verRichEdit; }
+
+ // load the richedit DLL of at least of required version
+ static bool Load(int version = 1);
+
+private:
+ // the handle to richedit DLL and the version of the DLL loaded
+ static HINSTANCE ms_hRichEdit;
+
+ // the DLL version loaded or -1 if none
+ static int ms_verRichEdit;
+
+ DECLARE_DYNAMIC_CLASS(wxRichEditModule)
+};
+
+HINSTANCE wxRichEditModule::ms_hRichEdit = (HINSTANCE)NULL;
+int wxRichEditModule::ms_verRichEdit = -1;
+
+IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
+
+#endif // wxUSE_RICHEDIT
// ----------------------------------------------------------------------------
// event tables and other macros
EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
+#ifdef __WIN16__
+ EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
+#endif
END_EVENT_TABLE()
-#endif // USE_SHARED_LIBRARY
-
// ============================================================================
// implementation
// ============================================================================
// creation
// ----------------------------------------------------------------------------
-wxTextCtrl::wxTextCtrl()
+void wxTextCtrl::Init()
{
#if wxUSE_RICHEDIT
- m_isRich = FALSE;
+ m_verRichEdit = 0;
#endif
}
if ( parent )
parent->AddChild(this);
- // set colours
- SetupColours();
-
// translate wxWin style flags to MSW ones, checking for consistency while
// doing it
- long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP;
+ long msStyle = ES_LEFT | WS_TABSTOP;
+
+ if ( m_windowStyle & wxCLIP_SIBLINGS )
+ msStyle |= WS_CLIPSIBLINGS;
+
if ( m_windowStyle & wxTE_MULTILINE )
{
wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER),
- wxT("wxTE_PROCESS_ENTER style is ignored for multiline "
- "text controls (they always process it)") );
+ wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") );
msStyle |= ES_MULTILINE | ES_WANTRETURN;
if ((m_windowStyle & wxTE_NO_VSCROLL) == 0)
msStyle |= WS_VSCROLL;
m_windowStyle |= wxTE_PROCESS_ENTER;
}
- else
+ else // !multiline
+ {
+ // there is really no reason to not have this style for single line
+ // text controls
msStyle |= ES_AUTOHSCROLL;
+ }
- if (m_windowStyle & wxHSCROLL)
- msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL);
+ if ( m_windowStyle & wxHSCROLL )
+ msStyle |= WS_HSCROLL | ES_AUTOHSCROLL;
- if (m_windowStyle & wxTE_READONLY)
+ if ( m_windowStyle & wxTE_READONLY )
msStyle |= ES_READONLY;
- if (m_windowStyle & wxHSCROLL)
- msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL);
- if (m_windowStyle & wxTE_PASSWORD) // hidden input
+ if ( m_windowStyle & wxTE_PASSWORD )
msStyle |= ES_PASSWORD;
+ if ( m_windowStyle & wxTE_AUTO_SCROLL )
+ msStyle |= ES_AUTOHSCROLL;
+
+ if ( m_windowStyle & wxTE_NOHIDESEL )
+ msStyle |= ES_NOHIDESEL;
+
// we always want the characters and the arrows
m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
m_lDlgCode |= DLGC_WANTTAB;
// do create the control - either an EDIT or RICHEDIT
- const wxChar *windowClass = wxT("EDIT");
+ wxString windowClass = wxT("EDIT");
#if wxUSE_RICHEDIT
if ( m_windowStyle & wxTE_RICH )
{
// first try to load the RichEdit DLL (will do nothing if already
// done)
- if ( !wxTheApp->InitRichEdit() )
+ if ( !wxRichEditModule::Load() )
{
- wxLogError(_("Impossible to create a rich edit control, "
- "using simple text control instead."));
+ wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll"));
s_errorGiven = TRUE;
}
}
- if ( s_errorGiven )
- {
- m_isRich = FALSE;
- }
- else
+ if ( !s_errorGiven )
{
msStyle |= ES_AUTOVSCROLL;
- m_isRich = TRUE;
- windowClass = wxT("RICHEDIT");
+
+ m_verRichEdit = wxRichEditModule::GetLoadedVersion();
+ 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;
+ }
}
}
- else
- m_isRich = FALSE;
-#endif
-
- bool want3D;
- WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
-
- // Even with extended styles, need to combine with WS_BORDER for them to
- // look right.
- if ( want3D || wxStyleHasBorder(m_windowStyle) )
- msStyle |= WS_BORDER;
-
- // NB: don't use pos and size as CreateWindowEx arguments because they
- // might be -1 in which case we should use the default values (and
- // SetSize called below takes care of it)
- m_hWnd = (WXHWND)::CreateWindowEx(exStyle,
- windowClass,
- NULL,
- msStyle,
- 0, 0, 0, 0,
- GetHwndOf(parent),
- (HMENU)m_windowId,
- wxGetInstance(),
- NULL);
-
- wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") );
+#endif // wxUSE_RICHEDIT
-#if wxUSE_CTL3D
- if ( want3D )
+ // we need to turn '\n's into "\r\n"s for the multiline controls
+ wxString valueWin;
+ if ( m_windowStyle & wxTE_MULTILINE )
{
- Ctl3dSubclassCtl(GetHwnd());
- m_useCtl3D = TRUE;
+ valueWin = wxTextFile::Translate(value, wxTextFileType_Dos);
}
-#endif
-
-#if wxUSE_RICHEDIT
- if (m_isRich)
+ else // single line
{
- // Have to enable events
- ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0,
- ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE);
+ valueWin = value;
}
-#endif
- SubclassWin(GetHWND());
+ if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) )
+ return FALSE;
- // set font, position, size and initial value
- wxFont& fontParent = parent->GetFont();
- if ( fontParent.Ok() )
- {
- SetFont(fontParent);
- }
- else
- {
- SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT));
- }
+ SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
- // Causes a crash for Symantec C++ and WIN32 for some reason
-#if !(defined(__SC__) && defined(__WIN32__))
- if ( !value.IsEmpty() )
+#if wxUSE_RICHEDIT
+ if ( IsRich() )
{
- SetValue(value);
- }
-#endif
+ // have to enable events manually
+ LPARAM mask = ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE;
+
+ if ( m_windowStyle & wxTE_AUTO_URL )
+ {
+ mask |= ENM_LINK;
+
+ ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0);
+ }
- SetSize(pos.x, pos.y, size.x, size.y);
+ ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask);
+ }
+#endif // wxUSE_RICHEDIT
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(_T("EDIT"), FALSE /* no case */) )
+ {
+ m_verRichEdit = 0;
+ }
+ else // rich edit?
+ {
+ wxChar c;
+ if ( wxSscanf(classname, _T("RichEdit%d0%c"), &m_verRichEdit, &c) != 2 )
+ {
+ wxLogDebug(_T("Unknown edit control '%s'."), classname.c_str());
- if ( wxStricmp(buf, wxT("EDIT")) == 0 )
- m_isRich = FALSE;
- else
- m_isRich = TRUE;
+ m_verRichEdit = 0;
+ }
+ }
#endif // wxUSE_RICHEDIT
- if (style & ES_MULTILINE)
- m_windowStyle |= wxTE_MULTILINE;
- if (style & ES_PASSWORD)
- m_windowStyle |= wxTE_PASSWORD;
- if (style & ES_READONLY)
- m_windowStyle |= wxTE_READONLY;
- if (style & ES_WANTRETURN)
- m_windowStyle |= wxTE_PROCESS_ENTER;
-}
-
-void wxTextCtrl::SetupColours()
-{
- // FIXME why is bg colour not inherited from parent?
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(GetParent()->GetForegroundColour());
+ if (style & ES_MULTILINE)
+ m_windowStyle |= wxTE_MULTILINE;
+ if (style & ES_PASSWORD)
+ m_windowStyle |= wxTE_PASSWORD;
+ if (style & ES_READONLY)
+ m_windowStyle |= wxTE_READONLY;
+ if (style & ES_WANTRETURN)
+ m_windowStyle |= wxTE_PROCESS_ENTER;
}
// ----------------------------------------------------------------------------
wxString wxTextCtrl::GetValue() const
{
- return wxGetWindowText(GetHWND());
+ // we can't use wxGetWindowText() (i.e. WM_GETTEXT internally) for
+ // retrieving more than 64Kb under Win9x
+#if wxUSE_RICHEDIT
+ if ( IsRich() )
+ {
+ wxString str;
+
+ int len = GetWindowTextLength(GetHwnd());
+ if ( len )
+ {
+ // alloc one extra WORD as needed by the control
+ wxChar *p = str.GetWriteBuf(++len);
+
+ TEXTRANGE textRange;
+ textRange.chrg.cpMin = 0;
+ textRange.chrg.cpMax = -1;
+ textRange.lpstrText = p;
+
+ (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
+
+ // believe it or not, but EM_GETTEXTRANGE uses just CR ('\r') for
+ // the newlines which is neither Unix nor Windows style (Win95 with
+ // riched20.dll shows this behaviour) - convert it to something
+ // reasonable
+ for ( ; *p; p++ )
+ {
+ if ( *p == _T('\r') )
+ *p = _T('\n');
+ }
+
+ str.UngetWriteBuf();
+ }
+ //else: no text at all, leave the string empty
+
+ return str;
+ }
+#endif // wxUSE_RICHEDIT
+
+ // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
+ // same one as above for consitency
+ wxString str = wxGetWindowText(GetHWND());
+
+ return wxTextFile::Translate(str, wxTextFileType_Unix);
}
void wxTextCtrl::SetValue(const wxString& value)
{
- wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
+ // if the text is long enough, it's faster to just set it instead of first
+ // comparing it with the old one (chances are that it will be different
+ // anyhow, this comparison is there to avoid flicker for small single-line
+ // edit controls mostly)
+ if ( (value.length() > 0x400) || (value != GetValue()) )
+ {
+ // it is simpler to do this but it could be more efficient to reproduce
+ // WriteText() logic here
+ Clear();
- if ( valueDos != GetValue() )
+ WriteText(value);
+
+ // for compatibility, don't move the cursor when doing SetValue()
+ SetInsertionPoint(0);
+ }
+}
+
+#if wxUSE_RICHEDIT && !wxUSE_UNICODE
+
+DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
+{
+ *pcb = 0;
+
+ wchar_t *wbuf = (wchar_t *)buf;
+ const wchar_t *wpc = *(const wchar_t **)dwCookie;
+ while ( cb && *wpc )
{
- SetWindowText(GetHwnd(), valueDos);
+ *wbuf++ = *wpc++;
- AdjustSpaceLimit();
+ cb -= sizeof(wchar_t);
+ (*pcb) += sizeof(wchar_t);
}
+
+ *(const wchar_t **)dwCookie = wpc;
+
+ return 0;
}
+extern long wxEncodingToCodepage(wxFontEncoding encoding); // from strconv.cpp
+
+bool wxTextCtrl::StreamIn(const wxString& value, wxFontEncoding encoding)
+{
+ // 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);
+ wxWCharBuffer wchBuf(len);
+ if ( !::MultiByteToWideChar(codepage, 0, value, -1,
+ (wchar_t *)wchBuf.data(), len) )
+ {
+ wxLogLastError(_T("MultiByteToWideChar"));
+ }
+
+ // finally, stream it in the control
+ const wchar_t *wpc = wchBuf;
+
+ 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 | SFF_SELECTION,
+ (LPARAM)&eds) || eds.dwError )
+ {
+ wxLogLastError(_T("EM_STREAMIN"));
+
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+#endif // wxUSE_RICHEDIT
+
void wxTextCtrl::WriteText(const wxString& value)
{
wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
- SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());
+#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
+ // 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);
+ }
+ }
+ }
+#endif // !wxUSE_UNICODE
+ }
+
+ if ( !done )
+#endif // wxUSE_RICHEDIT
+ {
+ ::SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());
+ }
AdjustSpaceLimit();
}
void wxTextCtrl::AppendText(const wxString& text)
{
SetInsertionPointEnd();
+
WriteText(text);
}
void wxTextCtrl::Clear()
{
- SetWindowText(GetHwnd(), wxT(""));
+ ::SetWindowText(GetHwnd(), wxT(""));
}
// ----------------------------------------------------------------------------
// Can copy if there's a selection
long from, to;
GetSelection(& from, & to);
- return (from != to);
+ return (from != to) ;
}
bool wxTextCtrl::CanCut() const
// Can cut if there's a selection
long from, to;
GetSelection(& from, & to);
- return (from != to);
+ return (from != to) && (IsEditable());
}
bool wxTextCtrl::CanPaste() const
{
+ if ( !IsEditable() )
+ return FALSE;
+
#if wxUSE_RICHEDIT
- if (m_isRich)
+ if ( IsRich() )
{
- int dataFormat = 0; // 0 == any format
- return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0);
+ UINT cf = 0; // 0 == any format
+
+ return ::SendMessage(GetHwnd(), EM_CANPASTE, cf, 0) != 0;
}
-#endif
- if (!IsEditable())
- return FALSE;
+#endif // wxUSE_RICHEDIT
// Standard edit control: check for straight text on clipboard
- bool isTextAvailable = FALSE;
- if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
- {
- isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0);
- ::CloseClipboard();
- }
+ if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
+ return FALSE;
+
+ bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0;
+ ::CloseClipboard();
return isTextAvailable;
}
void wxTextCtrl::SetInsertionPoint(long pos)
{
- HWND hWnd = GetHwnd();
-#ifdef __WIN32__
+ SetSelection(pos, pos);
+
#if wxUSE_RICHEDIT
- if ( m_isRich)
+ if ( !IsRich() )
+#endif
{
- CHARRANGE range;
- range.cpMin = pos;
- range.cpMax = pos;
- SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range);
- SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
+ static const wxChar *nothing = _T("");
+ SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)nothing);
}
- else
-#endif // wxUSE_RICHEDIT
- {
- SendMessage(hWnd, EM_SETSEL, pos, pos);
- SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
- }
-#else // Win16
- SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos));
-#endif // Win32/16
-
- static const char *nothing = "";
- SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
}
void wxTextCtrl::SetInsertionPointEnd()
long wxTextCtrl::GetInsertionPoint() const
{
#if wxUSE_RICHEDIT
- if (m_isRich)
+ if ( IsRich() )
{
CHARRANGE range;
range.cpMin = 0;
SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
return range.cpMin;
}
-#endif
+#endif // wxUSE_RICHEDIT
DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
return Pos & 0xFFFF;
void wxTextCtrl::GetSelection(long* from, long* to) const
{
#if wxUSE_RICHEDIT
- if (m_isRich)
+ if ( IsRich() )
{
CHARRANGE charRange;
- ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange);
+ ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange);
*from = charRange.cpMin;
*to = charRange.cpMax;
+ }
+ else
+#endif // !wxUSE_RICHEDIT
+ {
+ DWORD dwStart, dwEnd;
+ ::SendMessage(GetHwnd(), EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
- return;
+ *from = dwStart;
+ *to = dwEnd;
}
-#endif
- DWORD dwStart, dwEnd;
- WPARAM wParam = (WPARAM) (DWORD*) & dwStart; // receives starting position
- LPARAM lParam = (LPARAM) (DWORD*) & dwEnd; // receives ending position
+}
+
+wxString wxTextCtrl::GetStringSelection() const
+{
+ // the base class version works correctly for the rich text controls
+ // because there the lines are terminated with just '\r' which means that
+ // the string length is not changed in the result of the translations doen
+ // in GetValue() but for the normal ones when we replace "\r\n" with '\n'
+ // we break the indices
+#if wxUSE_RICHEDIT
+ if ( IsRich() )
+ return wxTextCtrlBase::GetStringSelection();
+#endif // wxUSE_RICHEDIT
+
+ long from, to;
+ GetSelection(&from, &to);
- ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam);
+ wxString str;
+ if ( from < to )
+ {
+ str = wxGetWindowText(GetHWND()).Mid(from, to - from);
- *from = dwStart;
- *to = dwEnd;
+ // and now that we have the correct selection, convert it to the
+ // correct format
+ str = wxTextFile::Translate(str, wxTextFileType_Unix);
+ }
+
+ return str;
}
bool wxTextCtrl::IsEditable() const
}
// ----------------------------------------------------------------------------
-// Editing
+// selection
// ----------------------------------------------------------------------------
-void wxTextCtrl::Replace(long from, long to, const wxString& value)
+void wxTextCtrl::SetSelection(long from, long to)
{
-#if wxUSE_CLIPBOARD
+ DoSetSelection(from, to);
+}
+
+void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)
+{
+ // if from and to are both -1, it means (in wxWindows) that all text should
+ // be selected - translate into Windows convention
+ if ( (from == -1) && (to == -1) )
+ {
+ from = 0;
+ to = -1;
+ }
+
HWND hWnd = GetHwnd();
- long fromChar = from;
- long toChar = to;
- // Set selection and remove it
#ifdef __WIN32__
- SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
-#else
- SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
-#endif
- SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
-
- // Now replace with 'value', by pasting.
- wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0);
+#if 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);
+ }
- // 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
+ 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
}
-void wxTextCtrl::Remove(long from, long to)
+// ----------------------------------------------------------------------------
+// Editing
+// ----------------------------------------------------------------------------
+
+void wxTextCtrl::Replace(long from, long to, const wxString& value)
{
- HWND hWnd = GetHwnd();
- long fromChar = from;
- long toChar = to;
+ // Set selection and remove it
+ DoSetSelection(from, to, FALSE);
- // Cut all selected text
+ SendMessage(GetHwnd(), EM_REPLACESEL,
#ifdef __WIN32__
- SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
+ TRUE,
#else
- SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
+ FALSE,
#endif
- SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
+ (LPARAM)value.c_str());
}
-void wxTextCtrl::SetSelection(long from, long to)
+void wxTextCtrl::Remove(long from, long to)
{
- HWND hWnd = GetHwnd();
- long fromChar = from;
- long toChar = to;
-
- // if from and to are both -1, it means (in wxWindows) that all text should
- // be selected. Translate into Windows convention
- if ((from == -1) && (to == -1))
- {
- fromChar = 0;
- toChar = -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
+ Replace(from, to, _T(""));
}
bool wxTextCtrl::LoadFile(const wxString& file)
// This gets the line number containing the character
int lineNo;
#if wxUSE_RICHEDIT
- if ( m_isRich )
+ if ( IsRich() )
{
lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos);
}
wxString wxTextCtrl::GetLineText(long lineNo) const
{
size_t len = (size_t)GetLineLength(lineNo) + 1;
- char *buf = (char *)malloc(len);
- *(WORD *)buf = len;
- int noChars = (int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
- buf[noChars] = 0;
- wxString str(buf);
+ // there must be at least enough place for the length WORD in the
+ // buffer
+ len += sizeof(WORD);
+
+ wxString str;
+ wxChar *buf = str.GetWriteBuf(len);
- free(buf);
+ *(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
// ----------------------------------------------------------------------------
}
}
+// ----------------------------------------------------------------------------
+// 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 = 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() )
if ( !(m_windowStyle & wxTE_MULTILINE) )
{
wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
- event.SetEventObject( this );
+ InitCommandEvent(event);
+ event.SetString(GetValue());
if ( GetEventHandler()->ProcessEvent(event) )
return;
}
// ourselves the fact that we got here means that the user code
// decided to skip processing of this TAB - probably to let it
// do its default job.
- //
- // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is
- // handled by Windows
{
wxNavigationKeyEvent eventNav;
eventNav.SetDirection(!event.ShiftDown());
- eventNav.SetWindowChange(FALSE);
+ eventNav.SetWindowChange(event.ControlDown());
eventNav.SetEventObject(this);
- if ( GetEventHandler()->ProcessEvent(eventNav) )
+ if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
return;
}
break;
-
- default:
- event.Skip();
- return;
}
- // don't just call event.Skip() because this will cause TABs and ENTERs
- // be passed upwards and we don't always want this - instead process it
- // right here
-
- // FIXME
+ // no, we didn't process it
event.Skip();
}
case EN_KILLFOCUS:
{
wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
- : wxEVT_SET_FOCUS,
- m_windowId);
+ : wxEVT_SET_FOCUS,
+ m_windowId);
event.SetEventObject( this );
GetEventHandler()->ProcessEvent(event);
}
case EN_CHANGE:
{
wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
- wxString val(GetValue());
- if ( !val.IsNull() )
- event.m_commandString = WXSTRINGCAST val;
- event.SetEventObject( this );
+ InitCommandEvent(event);
+ event.SetString(GetValue());
ProcessCommand(event);
}
break;
- case EN_ERRSPACE:
+ case EN_MAXTEXT:
// the text size limit has been hit - increase it
- AdjustSpaceLimit();
+ if ( !AdjustSpaceLimit() )
+ {
+ wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId);
+ InitCommandEvent(event);
+ event.SetString(GetValue());
+ ProcessCommand(event);
+ }
break;
// the other notification messages are not processed
case EN_UPDATE:
- case EN_MAXTEXT:
+ case EN_ERRSPACE:
case EN_HSCROLL:
case EN_VSCROLL:
+ return FALSE;
default:
return FALSE;
}
return TRUE;
}
-void wxTextCtrl::AdjustSpaceLimit()
+WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
+#if wxUSE_CTL3D
+ WXUINT message,
+ WXWPARAM wParam,
+ WXLPARAM lParam
+#else
+ WXUINT WXUNUSED(message),
+ WXWPARAM WXUNUSED(wParam),
+ WXLPARAM WXUNUSED(lParam)
+#endif
+ )
+{
+#if wxUSE_CTL3D
+ if ( m_useCtl3D )
+ {
+ HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
+ return (WXHBRUSH) hbrush;
+ }
+#endif // wxUSE_CTL3D
+
+ HDC hdc = (HDC)pDC;
+ if (GetParent()->GetTransparentBackground())
+ SetBkMode(hdc, TRANSPARENT);
+ else
+ SetBkMode(hdc, OPAQUE);
+
+ wxColour colBack = GetBackgroundColour();
+
+ if (!IsEnabled() && (GetWindowStyle() & wxTE_MULTILINE) == 0)
+ colBack = wxSystemSettings::GetSystemColour(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::GetSystemColour(wxSYS_COLOUR_WINDOW);
+#endif
+
+ RECT rect;
+ ::GetClientRect(GetHwnd(), &rect);
+
+ COLORREF ref = PALETTERGB(col.Red(),
+ col.Green(),
+ col.Blue());
+ HBRUSH hBrush = ::CreateSolidBrush(ref);
+ if ( !hBrush )
+ wxLogLastError(wxT("CreateSolidBrush"));
+
+ HDC hdc = (HDC)event.GetDC()->GetHDC();
+
+ int mode = ::SetMapMode(hdc, MM_TEXT);
+
+ ::FillRect(hdc, &rect, hBrush);
+ ::DeleteObject(hBrush);
+ ::SetMapMode(hdc, mode);
+
+}
+#endif // Win16
+
+bool wxTextCtrl::AdjustSpaceLimit()
{
#ifndef __WIN16__
- unsigned int len = ::GetWindowTextLength(GetHwnd()),
- limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
- if ( len > limit )
+ unsigned int limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
+
+ // HACK: we try to automatically extend the limit for the amount of text
+ // to allow (interactively) entering more than 64Kb of text under
+ // Win9x but we shouldn't reset the text limit which was previously
+ // set explicitly with SetMaxLength()
+ //
+ // we could solve this by storing the limit we set in wxTextCtrl but
+ // to save space we prefer to simply test here the actual limit
+ // value: we consider that SetMaxLength() can only be called for
+ // values < 32Kb
+ if ( limit < 0x8000 )
+ {
+ // we've got more text than limit set by SetMaxLength()
+ return FALSE;
+ }
+
+ unsigned int len = ::GetWindowTextLength(GetHwnd());
+ if ( len >= limit )
{
limit = len + 0x8000; // 32Kb
#if wxUSE_RICHEDIT
- if ( m_isRich || limit > 0xffff )
-#else
- if ( limit > 0xffff )
-#endif
- ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit);
+ if ( IsRich() )
+ {
+ // as a nice side effect, this also allows passing limit > 64Kb
+ ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit);
+ }
else
+#endif // wxUSE_RICHEDIT
+ {
+ if ( limit > 0xffff )
+ {
+ // this will set it to a platform-dependent maximum (much more
+ // than 64Kb under NT)
+ limit = 0;
+ }
+
::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0);
+ }
}
-#endif
+#endif // !Win16
+
+ // we changed the limit
+ return TRUE;
}
bool wxTextCtrl::AcceptsFocus() const
int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
if ( m_windowStyle & wxTE_MULTILINE )
{
- hText *= wxMin(GetNumberOfLines(), 5);
+ hText *= wxMax(GetNumberOfLines(), 5);
}
//else: for single line control everything is ok
// standard handlers for standard edit menu events
// ----------------------------------------------------------------------------
-void wxTextCtrl::OnCut(wxCommandEvent& event)
+void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
{
Cut();
}
-void wxTextCtrl::OnCopy(wxCommandEvent& event)
+void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
{
Copy();
}
-void wxTextCtrl::OnPaste(wxCommandEvent& event)
+void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
{
Paste();
}
-void wxTextCtrl::OnUndo(wxCommandEvent& event)
+void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
{
Undo();
}
-void wxTextCtrl::OnRedo(wxCommandEvent& event)
+void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
{
Redo();
}
event.Enable( CanRedo() );
}
+// the rest of the file only deals with the rich edit controls
+#if wxUSE_RICHEDIT
+
+// ----------------------------------------------------------------------------
+// EN_LINK processing
+// ----------------------------------------------------------------------------
+
+bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
+{
+ NMHDR *hdr = (NMHDR* )lParam;
+ if ( hdr->code == EN_LINK )
+ {
+ ENLINK *enlink = (ENLINK *)hdr;
+
+ switch ( enlink->msg )
+ {
+ case WM_SETCURSOR:
+ // ok, so it is hardcoded - do we really nee to customize it?
+ ::SetCursor(GetHcursorOf(wxCursor(wxCURSOR_HAND)));
+ *result = TRUE;
+ break;
+
+ case WM_MOUSEMOVE:
+ case WM_LBUTTONDOWN:
+ case WM_LBUTTONUP:
+ case WM_LBUTTONDBLCLK:
+ case WM_RBUTTONDOWN:
+ case WM_RBUTTONUP:
+ case WM_RBUTTONDBLCLK:
+ // send a mouse event
+ {
+ static const wxEventType eventsMouse[] =
+ {
+ wxEVT_MOTION,
+ wxEVT_LEFT_DOWN,
+ wxEVT_LEFT_UP,
+ wxEVT_LEFT_DCLICK,
+ wxEVT_RIGHT_DOWN,
+ wxEVT_RIGHT_UP,
+ wxEVT_RIGHT_DCLICK,
+ };
+
+ // the event ids are consecutive
+ wxMouseEvent
+ evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]);
+
+ InitMouseEvent(evtMouse,
+ GET_X_LPARAM(enlink->lParam),
+ GET_Y_LPARAM(enlink->lParam),
+ enlink->wParam);
+
+ wxTextUrlEvent event(m_windowId, evtMouse,
+ enlink->chrg.cpMin,
+ enlink->chrg.cpMax);
+
+ InitCommandEvent(event);
+
+ *result = ProcessCommand(event);
+ }
+ break;
+ }
+
+ return TRUE;
+ }
+
+ // not processed
+ return FALSE;
+}
+
+// ----------------------------------------------------------------------------
+// colour setting for the rich edit controls
+// ----------------------------------------------------------------------------
+
+// Watcom C++ doesn't define this
+#ifndef SCF_ALL
+#define SCF_ALL 0x0004
+#endif
+
+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 rich text control doesn't handle setting background colour, so don't
+ // even try if it's the only thing we want to change
+ if ( wxRichEditModule::GetLoadedVersion() < 2 &&
+ !style.HasFont() && !style.HasTextColour() )
+ {
+ // 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);
+ }
+
+ // initialize CHARFORMAT struct
+#if wxUSE_RICHEDIT2
+ CHARFORMAT2 cf;
+#else
+ CHARFORMAT cf;
+#endif
+ wxZeroMemory(cf);
+ 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 ( wxRichEditModule::GetLoadedVersion() > 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()
+{
+ if ( ms_hRichEdit )
+ {
+ FreeLibrary(ms_hRichEdit);
+ }
+}
+
+/* static */
+bool wxRichEditModule::Load(int version)
+{
+ wxCHECK_MSG( version >= 1 && version <= 3, FALSE,
+ _T("incorrect richedit control version requested") );
+
+ if ( version <= ms_verRichEdit )
+ {
+ // we've already got this or better
+ return TRUE;
+ }
+
+ if ( ms_hRichEdit )
+ {
+ ::FreeLibrary(ms_hRichEdit);
+ }
+
+ // always try load riched20.dll first - like this we won't have to reload
+ // it later if we're first asked for RE 1 and then for RE 2 or 3
+ wxString dllname = _T("riched20.dll");
+ ms_hRichEdit = ::LoadLibrary(dllname);
+ ms_verRichEdit = 2; // no way to tell if it's 2 or 3, assume 2
+
+ if ( !ms_hRichEdit && (version == 1) )
+ {
+ // fall back to RE 1
+ dllname = _T("riched32.dll");
+ ms_hRichEdit = ::LoadLibrary(dllname);
+ ms_verRichEdit = 1;
+ }
+
+ if ( !ms_hRichEdit )
+ {
+ wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str());
+
+ ms_verRichEdit = -1;
+
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+#endif // wxUSE_RICHEDIT
+
+#endif // wxUSE_TEXTCTRL
projects / wxWidgets.git / blobdiff