#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
#if wxUSE_CLIPBOARD
- #include "wx/app.h"
#include "wx/clipbrd.h"
#endif
#include <richedit.h>
#endif
-#if !USE_SHARED_LIBRARY
+// ----------------------------------------------------------------------------
+// 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_REDO, wxTextCtrl::OnUpdateRedo)
END_EVENT_TABLE()
-#endif // USE_SHARED_LIBRARY
// ============================================================================
// implementation
if ( !CreateBase(parent, id, pos, size, style, validator, name) )
return FALSE;
- // Validator was set in CreateBase
- //SetValidator(validator);
if ( parent )
parent->AddChild(this);
{
wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER),
wxT("wxTE_PROCESS_ENTER style is ignored for multiline "
- "text controls (they always process it)") );
+ "text controls (they always process it)") );
msStyle |= ES_MULTILINE | ES_WANTRETURN;
if ((m_windowStyle & wxTE_NO_VSCROLL) == 0)
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 )
{
- msStyle |= ES_AUTOVSCROLL;
- m_isRich = TRUE;
- windowClass = wxT("RICHEDIT");
+ static bool s_errorGiven = FALSE; // MT-FIXME
+
+ // only give the error msg once if the DLL can't be loaded
+ if ( !s_errorGiven )
+ {
+ // first try to load the RichEdit DLL (will do nothing if already
+ // done)
+ if ( !wxRichEditModule::Load() )
+ {
+ 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
+ {
+ msStyle |= ES_AUTOVSCROLL;
+ m_isRich = TRUE;
+
+ int ver = wxRichEditModule::GetLoadedVersion();
+ if ( ver == 1 )
+ {
+ windowClass = wxT("RICHEDIT");
+ }
+ else
+ {
+#ifndef RICHEDIT_CLASS
+ wxString RICHEDIT_CLASS;
+ RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), ver);
+#ifdef 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
+#endif // wxUSE_RICHEDIT
bool want3D;
WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
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 ( m_isRich )
+ {
+ wxString str;
+
+ int len = GetWindowTextLength(GetHwnd()) + 1;
+ 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();
+
+ 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()) )
+ {
+ wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
- SetWindowText(GetHwnd(), valueDos);
+ SetWindowText(GetHwnd(), valueDos);
- AdjustSpaceLimit();
+ AdjustSpaceLimit();
+ }
}
void wxTextCtrl::WriteText(const wxString& value)
}
}
-WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
- WXUINT message, WXWPARAM wParam,
- WXLPARAM lParam)
-{
-#if wxUSE_CTL3D
- if ( m_useCtl3D )
- {
- HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
- return (WXHBRUSH) hbrush;
- }
-#endif
-
- HDC hdc = (HDC)pDC;
- SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT
- : OPAQUE);
-
- ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
- ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
-
- wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
-
- return (WXHBRUSH) backgroundBrush->GetResourceHandle();
-}
-
void wxTextCtrl::OnChar(wxKeyEvent& event)
{
switch ( event.KeyCode() )
}
break;
- case EN_ERRSPACE:
+ case EN_MAXTEXT:
// the text size limit has been hit - increase it
AdjustSpaceLimit();
break;
// the other notification messages are not processed
case EN_UPDATE:
- case EN_MAXTEXT:
+ case EN_ERRSPACE:
case EN_HSCROLL:
case EN_VSCROLL:
default:
#ifndef __WIN16__
unsigned int len = ::GetWindowTextLength(GetHwnd()),
limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
- if ( len > limit )
+ 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 ( m_isRich )
+ {
+ // as a nice side effect, this also allows passing limit > 64Kb
+ ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit);
+ }
else
+#endif // wxUSE_RICHEDIT
+ {
+ if ( limit > 0xffff )
+ {
+ // this will set it to a platform-dependent maximum (much more
+ // than 64Kb under NT)
+ limit = 0;
+ }
+
::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0);
+ }
}
-#endif
+#endif // !Win16
}
bool wxTextCtrl::AcceptsFocus() const
return IsEditable() && wxControl::AcceptsFocus();
}
-wxSize wxTextCtrl::DoGetBestSize()
+wxSize wxTextCtrl::DoGetBestSize() const
{
int cx, cy;
wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
event.Enable( CanRedo() );
}
+// ----------------------------------------------------------------------------
+// wxRichEditModule
+// ----------------------------------------------------------------------------
+
+#if wxUSE_RICHEDIT
+
+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
+
projects / wxWidgets.git / blobdiff