X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/789295bf7bd4b58b0270800fb689fce0786dae15..66b6b04535cf261b7bae7da77332835b242abd04:/src/msw/textctrl.cpp diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index e2d8369a04..794d146e78 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -9,34 +9,48 @@ // 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 #ifndef WX_PRECOMP -#include "wx/textctrl.h" -#include "wx/settings.h" -#include "wx/brush.h" -#include "wx/utils.h" -#include "wx/log.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 #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 @@ -44,190 +58,267 @@ # include #endif -#include -#ifndef __MWERKS__ -#include -#else -#include -#endif -#if defined(__BORLANDC__) && !defined(__WIN32__) -#include -#else -#if !defined(__GNUWIN32__) && !defined(__SALFORDC__) -#include -#endif -#define farmalloc malloc -#define farfree free +#if wxUSE_RICHEDIT && (!defined(__GNUWIN32__) || defined(wxUSE_NORLANDER_HEADERS)) + #include #endif -#include -#include +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- -#if wxUSE_RICHEDIT && !defined(__GNUWIN32__) - #include -#endif +#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; -#if !USE_SHARED_LIBRARY + // 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 +// ---------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl) BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) - 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) + 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) END_EVENT_TABLE() -#endif // USE_SHARED_LIBRARY -// Text item +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// creation +// ---------------------------------------------------------------------------- + wxTextCtrl::wxTextCtrl() -#ifndef NO_TEXT_WINDOW_STREAM - : streambuf() -#endif { #if wxUSE_RICHEDIT - m_isRich = FALSE; + m_isRich = FALSE; #endif } bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, const wxString& value, const wxPoint& pos, - const wxSize& size, long style, + const wxSize& size, + long style, const wxValidator& validator, const wxString& name) { - SetName(name); - SetValidator(validator); - if (parent) parent->AddChild(this); - - m_windowStyle = style; - - // Should this be taken from the system colours? -// SetBackgroundColour(wxColour(255, 255, 255)); - - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - - SetForegroundColour(parent->GetForegroundColour()) ; - - if ( id == -1 ) - m_windowId = (int)NewControlId(); - else - m_windowId = id; + // base initialization + if ( !CreateBase(parent, id, pos, size, style, validator, name) ) + return FALSE; - int x = pos.x; - int y = pos.y; - int width = size.x; - int height = size.y; + if ( parent ) + parent->AddChild(this); - long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; - if (m_windowStyle & wxTE_MULTILINE) - { - wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), - "wxTE_PROCESS_ENTER style is ignored for multiline controls" ); + // translate wxWin style flags to MSW ones, checking for consistency while + // doing it + long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; + if ( m_windowStyle & wxTE_MULTILINE ) + { + wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), + wxT("wxTE_PROCESS_ENTER style is ignored for multiline " + "text controls (they always process it)") ); + + msStyle |= ES_MULTILINE | ES_WANTRETURN; + if ((m_windowStyle & wxTE_NO_VSCROLL) == 0) + msStyle |= WS_VSCROLL; + m_windowStyle |= wxTE_PROCESS_ENTER; + } + else + msStyle |= ES_AUTOHSCROLL; - msStyle |= ES_MULTILINE | ES_WANTRETURN | WS_VSCROLL ; // WS_BORDER - m_windowStyle |= wxTE_PROCESS_ENTER; - } - else - msStyle |= ES_AUTOHSCROLL ; + if (m_windowStyle & wxHSCROLL) + msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); - if (m_windowStyle & wxTE_READONLY) - msStyle |= ES_READONLY; + if (m_windowStyle & wxTE_READONLY) + msStyle |= ES_READONLY; - if (m_windowStyle & wxHSCROLL) - msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL) ; - if (m_windowStyle & wxTE_PASSWORD) // hidden input - msStyle |= ES_PASSWORD; + if (m_windowStyle & wxHSCROLL) + msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); + if (m_windowStyle & wxTE_PASSWORD) // hidden input + msStyle |= ES_PASSWORD; - const char *windowClass = "EDIT"; + // we always want the characters and the arrows + m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; -#if wxUSE_RICHEDIT - if ( m_windowStyle & wxTE_MULTILINE ) - { - msStyle |= ES_AUTOVSCROLL; - m_isRich = TRUE; - windowClass = "RichEdit" ; - } - else - m_isRich = FALSE; -#endif + // we may have several different cases: + // 1. normal case: both TAB and ENTER are used for dialog navigation + // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next + // control in the dialog + // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation + // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to + // the next control + if ( m_windowStyle & wxTE_PROCESS_ENTER ) + m_lDlgCode |= DLGC_WANTMESSAGE; + if ( m_windowStyle & wxTE_PROCESS_TAB ) + m_lDlgCode |= DLGC_WANTTAB; - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; + // do create the control - either an EDIT or RICHEDIT + wxString windowClass = wxT("EDIT"); - // If we're in Win95, and we want a simple 2D border, - // then make it an EDIT control instead. #if wxUSE_RICHEDIT - if (m_windowStyle & wxSIMPLE_BORDER) - { - windowClass = "EDIT"; - m_isRich = FALSE; - } -#endif + if ( m_windowStyle & wxTE_RICH ) + { + 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")); - // Even with extended styles, need to combine with WS_BORDER - // for them to look right. - if ( want3D || wxStyleHasBorder(m_windowStyle) ) - msStyle |= WS_BORDER; + s_errorGiven = TRUE; + } + } - m_hWnd = (WXHWND)::CreateWindowEx(exStyle, windowClass, NULL, - msStyle, - 0, 0, 0, 0, (HWND) ((wxWindow*)parent)->GetHWND(), (HMENU)m_windowId, - wxGetInstance(), NULL); + if ( s_errorGiven ) + { + m_isRich = FALSE; + } + else + { + msStyle |= ES_AUTOVSCROLL; + m_isRich = TRUE; - wxCHECK_MSG( m_hWnd, FALSE, "Failed to create text ctrl" ); + 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 // wxUSE_RICHEDIT + + 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") ); #if wxUSE_CTL3D - if ( want3D ) - { - Ctl3dSubclassCtl((HWND)m_hWnd); - m_useCtl3D = TRUE; - } + if ( want3D ) + { + Ctl3dSubclassCtl(GetHwnd()); + m_useCtl3D = TRUE; + } #endif #if wxUSE_RICHEDIT - if (m_isRich) - { - // Have to enable events - ::SendMessage((HWND)m_hWnd, EM_SETEVENTMASK, 0, - ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); - } + if (m_isRich) + { + // Have to enable events + ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, + ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); + } #endif - SubclassWin(GetHWND()); + SubclassWin(GetHWND()); - if ( parent->GetFont().Ok() && parent->GetFont().Ok() ) - { - SetFont(parent->GetFont()); - } - else - { - SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); - } - - SetSize(x, y, width, height); + // set font, position, size and initial value + wxFont& fontParent = parent->GetFont(); + if ( fontParent.Ok() ) + { + SetFont(fontParent); + } + else + { + SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); + } - // Causes a crash for Symantec C++ and WIN32 for some reason + // Causes a crash for Symantec C++ and WIN32 for some reason #if !(defined(__SC__) && defined(__WIN32__)) - if ( !value.IsEmpty() ) - { - SetValue(value); - } + if ( !value.IsEmpty() ) + { + SetValue(value); + } #endif - return TRUE; + // set colours + SetupColours(); + + SetSize(pos.x, pos.y, size.x, size.y); + + return TRUE; } // Make sure the window style (etc.) reflects the HWND style (roughly) @@ -236,34 +327,19 @@ void wxTextCtrl::AdoptAttributesFromHWND() wxWindow::AdoptAttributesFromHWND(); HWND hWnd = GetHwnd(); - long style = GetWindowLong((HWND) hWnd, GWL_STYLE); + long style = GetWindowLong(hWnd, GWL_STYLE); // retrieve the style to see whether this is an edit or richedit ctrl #if wxUSE_RICHEDIT - char buf[256]; + wxChar buf[256]; -#ifndef __WIN32__ - GetClassName((HWND) hWnd, buf, 256); -#else -#ifdef UNICODE - GetClassNameW((HWND) hWnd, buf, 256); -#else -#ifdef __TWIN32__ - GetClassName((HWND) hWnd, buf, 256); -#else - GetClassNameA((HWND) hWnd, buf, 256); -#endif -#endif -#endif + GetClassName(hWnd, buf, WXSIZEOF(buf)); - wxString str(buf); - str.UpperCase(); - - if (str == "EDIT") + if ( wxStricmp(buf, wxT("EDIT")) == 0 ) m_isRich = FALSE; else m_isRich = TRUE; -#endif +#endif // wxUSE_RICHEDIT if (style & ES_MULTILINE) m_windowStyle |= wxTE_MULTILINE; @@ -277,100 +353,102 @@ void wxTextCtrl::AdoptAttributesFromHWND() void wxTextCtrl::SetupColours() { - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetForegroundColour()); -} + wxColour bkgndColour; + if (IsEditable() || (m_windowStyle & wxTE_MULTILINE)) + bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW); + else + bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE); -wxString wxTextCtrl::GetValue() const -{ - return wxGetWindowText(GetHWND()); + SetBackgroundColour(bkgndColour); + SetForegroundColour(GetParent()->GetForegroundColour()); } -void wxTextCtrl::SetValue(const wxString& value) +// ---------------------------------------------------------------------------- +// set/get the controls text +// ---------------------------------------------------------------------------- + +wxString wxTextCtrl::GetValue() const { - // 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 ++) + // we can't use wxGetWindowText() (i.e. WM_GETTEXT internally) for + // retrieving more than 64Kb under Win9x +#if wxUSE_RICHEDIT + if ( m_isRich ) { - if ((i > 0) && (value[i] == 10) && (value[i-1] != 13)) - { - tmp[j] = 13; - j ++; - } - tmp[j] = value[i]; - j ++; - } - tmp[j] = 0; - SetWindowText(GetHwnd(), tmp); - delete[] tmp; - } - else - SetWindowText(GetHwnd(), (const char *)value); + wxString str; - AdjustSpaceLimit(); -} + int len = GetWindowTextLength(GetHwnd()) + 1; + wxChar *p = str.GetWriteBuf(len); -void wxTextCtrl::DoSetSize(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; + TEXTRANGE textRange; + textRange.chrg.cpMin = 0; + textRange.chrg.cpMax = -1; + textRange.lpstrText = p; - if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - x1 = currentX; - if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - y1 = currentY; + (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange); - AdjustForParentClientOrigin(x1, y1, sizeFlags); + // 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'); + } - int cx; // button font dimensions - int cy; + str.UngetWriteBuf(); - wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont()); + return str; + } +#endif // wxUSE_RICHEDIT - int control_width, control_height, control_x, control_y; + // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the + // same one as above for consitency + wxString str = wxGetWindowText(GetHWND()); - // If we're prepared to use the existing size, then... - if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO)) - { - GetSize(&w1, &h1); - } + return wxTextFile::Translate(str, wxTextFileType_Unix); +} - // Deal with default size (using -1 values) - if (w1<=0) - w1 = DEFAULT_ITEM_WIDTH; +void wxTextCtrl::SetValue(const wxString& value) +{ + // 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); - control_x = x1; - control_y = y1; - control_width = w1; - control_height = h1; + AdjustSpaceLimit(); + } +} - // Calculations may have made text size too small - if (control_height <= 0) - control_height = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); +void wxTextCtrl::WriteText(const wxString& value) +{ + wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); - if (control_width <= 0) - control_width = DEFAULT_ITEM_WIDTH; + SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); - MoveWindow(GetHwnd(), (int)control_x, (int)control_y, - (int)control_width, (int)control_height, TRUE); + AdjustSpaceLimit(); } +void wxTextCtrl::AppendText(const wxString& text) +{ + SetInsertionPointEnd(); + WriteText(text); +} + +void wxTextCtrl::Clear() +{ + SetWindowText(GetHwnd(), wxT("")); +} + +// ---------------------------------------------------------------------------- // Clipboard operations +// ---------------------------------------------------------------------------- + void wxTextCtrl::Copy() { if (CanCopy()) @@ -398,59 +476,111 @@ void wxTextCtrl::Paste() } } +bool wxTextCtrl::CanCopy() const +{ + // Can copy if there's a selection + long from, to; + GetSelection(& 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); +} + +bool wxTextCtrl::CanPaste() const +{ +#if wxUSE_RICHEDIT + if (m_isRich) + { + int dataFormat = 0; // 0 == any format + return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0); + } +#endif + if (!IsEditable()) + return FALSE; + + // Standard edit control: check for straight text on clipboard + bool isTextAvailable = FALSE; + if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) + { + isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); + ::CloseClipboard(); + } + + return isTextAvailable; +} + +// ---------------------------------------------------------------------------- +// Accessors +// ---------------------------------------------------------------------------- + void wxTextCtrl::SetEditable(bool editable) { - HWND hWnd = GetHwnd(); - SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); + bool isEditable = IsEditable(); + + HWND hWnd = GetHwnd(); + SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); + + if (editable != isEditable) + { + SetupColours(); + Refresh(); + } } void wxTextCtrl::SetInsertionPoint(long pos) { - HWND hWnd = GetHwnd(); + HWND hWnd = GetHwnd(); #ifdef __WIN32__ #if wxUSE_RICHEDIT - 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); + 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 // 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 pos = GetLastPosition(); - SetInsertionPoint(pos); + long pos = GetLastPosition(); + SetInsertionPoint(pos); } long wxTextCtrl::GetInsertionPoint() const { #if wxUSE_RICHEDIT - if (m_isRich) - { - CHARRANGE range; - range.cpMin = 0; - range.cpMax = 0; - SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); - return range.cpMin; - } + if (m_isRich) + { + CHARRANGE range; + range.cpMin = 0; + range.cpMax = 0; + SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); + return range.cpMin; + } #endif - DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); - return Pos&0xFFFF; + DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); + return Pos & 0xFFFF; } long wxTextCtrl::GetLastPosition() const @@ -470,6 +600,43 @@ long wxTextCtrl::GetLastPosition() const return (long)(charIndex + lineLength); } +// If the return values from and to are the same, there is no +// selection. +void wxTextCtrl::GetSelection(long* from, long* to) const +{ +#if wxUSE_RICHEDIT + if (m_isRich) + { + CHARRANGE charRange; + ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange); + + *from = charRange.cpMin; + *to = charRange.cpMax; + + return; + } +#endif + DWORD dwStart, dwEnd; + WPARAM wParam = (WPARAM) (DWORD*) & dwStart; // receives starting position + LPARAM lParam = (LPARAM) (DWORD*) & dwEnd; // receives ending position + + ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); + + *from = dwStart; + *to = dwEnd; +} + +bool wxTextCtrl::IsEditable() const +{ + long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); + + return ((style & ES_READONLY) == 0); +} + +// ---------------------------------------------------------------------------- +// Editing +// ---------------------------------------------------------------------------- + void wxTextCtrl::Replace(long from, long to, const wxString& value) { #if wxUSE_CLIPBOARD @@ -486,7 +653,7 @@ void wxTextCtrl::Replace(long from, long to, const wxString& value) SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); // Now replace with 'value', by pasting. - wxSetClipboardData(wxDF_TEXT, (wxObject *) (const char *)value, 0, 0); + wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0); // Paste into edit control SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); @@ -515,9 +682,9 @@ void wxTextCtrl::SetSelection(long from, long to) HWND hWnd = GetHwnd(); long fromChar = from; long toChar = to; - // if from and to are both -1, it means - // (in wxWindows) that all text should be selected. - // This translates into Windows convention + + // 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; @@ -535,136 +702,15 @@ void wxTextCtrl::SetSelection(long from, long to) bool wxTextCtrl::LoadFile(const wxString& file) { - if (!wxFileExists(WXSTRINGCAST file)) - return FALSE; - - m_fileName = file; - - Clear(); - -// ifstream input(WXSTRINGCAST file, ios::nocreate | ios::in); - ifstream input(WXSTRINGCAST file, ios::in); - - 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... - -#ifdef __SALFORDC__ - struct _stat stat_buf; - if (stat((char*) (const char*) file, &stat_buf) < 0) - return FALSE; -#else - struct stat stat_buf; - if (stat(file, &stat_buf) < 0) - return FALSE; -#endif - -// 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++; - } - - SetWindowText(GetHwnd(), tmp_buffer); - SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); - farfree(tmp_buffer); - - // update the size limit if needed - AdjustSpaceLimit(); - - 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; - - ofstream output((char*) (const char*) theFile); - if (output.bad()) - return FALSE; - - // This will only save 64K max - unsigned long nbytes = SendMessage(GetHwnd(), WM_GETTEXTLENGTH, 0, 0); - char *tmp_buffer = (char*)farmalloc((size_t)(nbytes+1)); - SendMessage(GetHwnd(), WM_GETTEXT, (WPARAM)(nbytes+1), (LPARAM)tmp_buffer); - char *pstr = tmp_buffer; - - // Convert \r\n to just \n - while (*pstr) + if ( wxTextCtrlBase::LoadFile(file) ) { - if (*pstr != '\r') - output << *pstr; - pstr++; - } + // update the size limit if needed + AdjustSpaceLimit(); - farfree(tmp_buffer); - SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); - - return TRUE; -} - -void wxTextCtrl::WriteText(const wxString& text) -{ - // 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 (text[i] == '\n') - { - newtext[j] = '\r'; - j ++; - } - newtext[j] = text[i]; - i ++; - j ++; + return TRUE; } - newtext[j] = 0; - SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)newtext); - delete[] newtext; - - AdjustSpaceLimit(); -} - -void wxTextCtrl::AppendText(const wxString& text) -{ - SetInsertionPointEnd(); - WriteText(text); -} -void wxTextCtrl::Clear() -{ - SetWindowText(GetHwnd(), ""); + return FALSE; } bool wxTextCtrl::IsModified() const @@ -675,14 +721,9 @@ bool wxTextCtrl::IsModified() const // Makes 'unmodified' void wxTextCtrl::DiscardEdits() { - SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); + SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); } -/* - * Some of the following functions are yet to be implemented - * - */ - int wxTextCtrl::GetNumberOfLines() const { return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); @@ -697,17 +738,41 @@ long wxTextCtrl::XYToPosition(long x, long y) const return (long)(x + charIndex); } -void wxTextCtrl::PositionToXY(long pos, long *x, long *y) const +bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const { HWND hWnd = GetHwnd(); // This gets the line number containing the character - int lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0); + int lineNo; +#if wxUSE_RICHEDIT + if ( m_isRich ) + { + lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); + } + else +#endif // wxUSE_RICHEDIT + lineNo = (int)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); + 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 = (long)(pos - charIndex); + if ( y ) + *y = (long)lineNo; + + return TRUE; } void wxTextCtrl::ShowPosition(long pos) @@ -738,59 +803,29 @@ void wxTextCtrl::ShowPosition(long pos) int wxTextCtrl::GetLineLength(long lineNo) const { long charIndex = XYToPosition(0, lineNo); - HWND hWnd = GetHwnd(); - int len = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0); + int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); return len; } wxString wxTextCtrl::GetLineText(long lineNo) const { - 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; + char *buf = (char *)malloc(len); + *(WORD *)buf = len; + int noChars = (int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); + buf[noChars] = 0; -bool wxTextCtrl::CanCopy() const -{ - // Can copy if there's a selection - long from, to; - GetSelection(& 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) ; -} + wxString str(buf); -bool wxTextCtrl::CanPaste() const -{ -#if wxUSE_RICHEDIT - if (m_isRich) - { - int dataFormat = 0; // 0 == any format - return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0); - } -#endif - if (!IsEditable()) - return FALSE; + free(buf); - // Standard edit control: check for straight text on clipboard - bool isTextAvailable = FALSE; - if (::OpenClipboard((HWND) wxTheApp->GetTopWindow()->GetHWND())) - { - isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); - ::CloseClipboard(); - } - return isTextAvailable; + return str; } +// ---------------------------------------------------------------------------- // Undo/redo +// ---------------------------------------------------------------------------- + void wxTextCtrl::Undo() { if (CanUndo()) @@ -818,255 +853,23 @@ bool wxTextCtrl::CanRedo() const return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); } -// If the return values from and to are the same, there is no -// selection. -void wxTextCtrl::GetSelection(long* from, long* to) const -{ -#if wxUSE_RICHEDIT - if (m_isRich) - { - CHARRANGE charRange; - ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange); - - *from = charRange.cpMin; - *to = charRange.cpMax; - - return; - } -#endif - DWORD dwStart, dwEnd; - WPARAM wParam = (WPARAM) (DWORD*) & dwStart; // receives starting position - LPARAM lParam = (LPARAM) (DWORD*) & dwEnd; // receives ending position - - ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); - - *from = dwStart; - *to = dwEnd; -} - -bool wxTextCtrl::IsEditable() const -{ - long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); - - return ((style & ES_READONLY) == 0); -} +// ---------------------------------------------------------------------------- +// 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 textctrl.h. -#ifndef NO_TEXT_WINDOW_STREAM -int wxTextCtrl::overflow(int c) -{ - // Make sure there is a holding area - // this is not needed in usage as it automagically allocates - // it, but does someone want to emulate it for safety's sake? -#if wxUSE_IOSTREAMH - if ( allocate()==EOF ) - { - wxLogError("Streambuf allocation failed"); - return EOF; - } -#endif - - // 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"); - -#if wxUSE_IOSTREAMH - setp( base(), base() ); -#else - setp( pbase(), pbase() ); -#endif - } - - // 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 - AppendText(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); -#else - return c!=EOF ? c : 0; // this should make everybody happy -#endif - -/* 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() -{ - // 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() -{ - return EOF; -} -#endif - -wxTextCtrl& wxTextCtrl::operator<<(const wxString& s) -{ - AppendText(s); - return *this; -} - -wxTextCtrl& wxTextCtrl::operator<<(float f) -{ - wxString str; - str.Printf("%.2f", f); - AppendText(str); - return *this; -} - -wxTextCtrl& wxTextCtrl::operator<<(double d) -{ - wxString str; - str.Printf("%.2f", d); - AppendText(str); - return *this; -} - -wxTextCtrl& wxTextCtrl::operator<<(int i) -{ - wxString str; - str.Printf("%d", i); - AppendText(str); - return *this; -} - -wxTextCtrl& wxTextCtrl::operator<<(long i) -{ - wxString str; - str.Printf("%ld", i); - AppendText(str); - return *this; -} - -wxTextCtrl& wxTextCtrl::operator<<(const char c) -{ - char buf[2]; - - buf[0] = c; - buf[1] = 0; - AppendText(buf); - return *this; -} - -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 - - if (GetParent()->GetTransparentBackground()) - SetBkMode((HDC) pDC, TRANSPARENT); - else - SetBkMode((HDC) pDC, OPAQUE); - - ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); - - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); - - // 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(); + // By default, load the first file into the text window. + if (event.GetNumberOfFiles() > 0) + { + LoadFile(event.GetFiles()[0]); + } } void wxTextCtrl::OnChar(wxKeyEvent& event) @@ -1086,57 +889,26 @@ void wxTextCtrl::OnChar(wxKeyEvent& event) break; case WXK_TAB: - // only produce navigation event if we don't process TAB ourself or - // if it's a Shift-Tab keypress (we assume nobody will ever need - // this key combo for himself) - // - // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is - // handled by Windows - if ( event.ShiftDown() || !(m_windowStyle & wxTE_PROCESS_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(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(); } -long wxTextCtrl::MSWGetDlgCode() -{ - // we always want the characters and the arrows - long lRc = 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 ) - lRc |= DLGC_WANTMESSAGE; - if ( m_windowStyle & wxTE_PROCESS_TAB ) - lRc |= DLGC_WANTTAB; - - return lRc; -} - bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { switch (param) @@ -1163,14 +935,14 @@ bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) } 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: @@ -1183,45 +955,61 @@ bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) void wxTextCtrl::AdjustSpaceLimit() { +#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 ( m_isRich || limit > 0xffff ) - ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit); +#if wxUSE_RICHEDIT + if ( m_isRich ) + { + // as a nice side effect, this also allows passing limit > 64Kb + ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit); + } else +#endif // wxUSE_RICHEDIT + { + if ( limit > 0xffff ) + { + // this will set it to a platform-dependent maximum (much more + // than 64Kb under NT) + limit = 0; + } + ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); + } } +#endif // !Win16 } -// For Rich Edit controls. Do we need it? -#if 0 -#if wxUSE_RICHEDIT -bool wxTextCtrl::MSWOnNotify(WXWPARAM wParam, WXLPARAM lParam) +bool wxTextCtrl::AcceptsFocus() const { - wxCommandEvent event(0, m_windowId); - int eventType = 0; - NMHDR *hdr1 = (NMHDR *) lParam; - switch ( hdr1->code ) - { - // Insert case code here - default : - return wxControl::MSWOnNotify(wParam, lParam); - break; - } - - event.SetEventObject( this ); - event.SetEventType(eventType); - - if ( !GetEventHandler()->ProcessEvent(event) ) - return FALSE; + // we don't want focus if we can't be edited + return IsEditable() && wxControl::AcceptsFocus(); +} - return TRUE; +wxSize wxTextCtrl::DoGetBestSize() const +{ + 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 *= wxMin(GetNumberOfLines(), 5); + } + //else: for single line control everything is ok + + return wxSize(wText, hText); } -#endif -#endif + +// ---------------------------------------------------------------------------- +// standard handlers for standard edit menu events +// ---------------------------------------------------------------------------- void wxTextCtrl::OnCut(wxCommandEvent& event) { @@ -1273,3 +1061,68 @@ void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) 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 +