X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1c4a764c984ba8e482e5d808fd1c762aeb5b535a..2b813b73cd79cfb4d275e9628811f379e8c5ee39:/src/msw/textctrl.cpp diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp index b764620b40..86ec3d7af8 100644 --- a/src/msw/textctrl.cpp +++ b/src/msw/textctrl.cpp @@ -1,438 +1,607 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 #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 -#if USE_CLIPBOARD -#include "wx/app.h" -#include "wx/clipbrd.h" +#include "wx/module.h" + +#if wxUSE_CLIPBOARD + #include "wx/clipbrd.h" #endif +#include "wx/textfile.h" + +#include + #include "wx/msw/private.h" -#include +#include #include -#include "fstream.h" - #include -#include -#if defined(__BORLANDC__) && !defined(__WIN32__) -#include + +#if wxUSE_IOSTREAMH +# include #else -#ifndef __GNUWIN32__ -#include +# include #endif -#define farmalloc malloc -#define farfree free + +#if wxUSE_RICHEDIT && !defined(__GNUWIN32_OLD__) + #include #endif -#include -#include +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- -#if defined(__WIN95__) && !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; + + // 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 +// ---------------------------------------------------------------------------- -#if !USE_SHARED_LIBRARY 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 -// Text item -wxTextCtrl::wxTextCtrl(void) -#ifndef NO_TEXT_WINDOW_STREAM - :streambuf() -#endif +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// creation +// ---------------------------------------------------------------------------- + +wxTextCtrl::wxTextCtrl() { - m_fileName = ""; - m_isRich = FALSE; +#if wxUSE_RICHEDIT + m_isRich = FALSE; +#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); + // base initialization + if ( !CreateBase(parent, id, pos, size, style, validator, name) ) + return FALSE; - m_windowStyle = style; + if ( parent ) + parent->AddChild(this); - // Should this be taken from the system colours? -// SetBackgroundColour(wxColour(255, 255, 255)); + // translate wxWin style flags to MSW ones, checking for consistency while + // doing it + long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP /* | 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)") ); - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); + msStyle |= ES_MULTILINE | ES_WANTRETURN; + if ((m_windowStyle & wxTE_NO_VSCROLL) == 0) + msStyle |= WS_VSCROLL; + m_windowStyle |= wxTE_PROCESS_ENTER; + } + else + msStyle |= ES_AUTOHSCROLL; - SetForegroundColour(parent->GetDefaultForegroundColour()) ; + if (m_windowStyle & wxHSCROLL) + msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); - if ( id == -1 ) - m_windowId = (int)NewControlId(); - else - m_windowId = id; + if (m_windowStyle & wxTE_READONLY) + msStyle |= ES_READONLY; - int x = pos.x; - int y = pos.y; - int width = size.x; - int height = size.y; + if (m_windowStyle & wxTE_PASSWORD) // hidden input + msStyle |= ES_PASSWORD; -#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_AUTO_SCROLL) + 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; + // we always want the characters and the arrows + m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; - 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 - - // 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 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; - m_hWnd = (WXHWND)edit; + // do create the control - either an EDIT or RICHEDIT + wxString windowClass = wxT("EDIT"); -#if defined(__WIN95__) - if (m_isRich) - { - // Have to enable events - ::SendMessage(edit, EM_SETEVENTMASK, 0, ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); - } +#if wxUSE_RICHEDIT + 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")); + + 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); +#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 // 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.c_str(), + 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(GetHwnd()); + m_useCtl3D = TRUE; + } #endif - SubclassWin(GetHWND()); +#if wxUSE_RICHEDIT + if (m_isRich) + { + // Have to enable events + ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, + ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); + } +#endif - if ( parent->GetFont() && parent->GetFont()->Ok() ) - { - SetFont(* parent->GetFont()); - } - else - { - SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); - } + SubclassWin(GetHWND()); - 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 != "") - SetWindowText(edit, (const char *)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) -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 + wxChar buf[256]; -#ifndef __WIN32__ - GetClassName((HWND) hWnd, buf, 256); -#else -#ifdef UNICODE - GetClassNameW((HWND) hWnd, buf, 256); -#else - GetClassNameA((HWND) hWnd, buf, 256); -#endif -#endif + GetClassName(hWnd, buf, WXSIZEOF(buf)); - wxString str(buf); - str.UpperCase(); - - if (str == "EDIT") - m_isRich = FALSE; - else - m_isRich = TRUE; - - if (style & ES_MULTILINE) - m_windowStyle |= wxTE_MULTILINE; - if (style & ES_PASSWORD) - m_windowStyle |= wxTE_PASSWORD; - if (style & ES_READONLY) - m_windowStyle |= wxTE_READONLY; - if (style & ES_WANTRETURN) - m_windowStyle |= wxTE_PROCESS_ENTER; + if ( wxStricmp(buf, wxT("EDIT")) == 0 ) + m_isRich = FALSE; + else + m_isRich = TRUE; +#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(void) +void wxTextCtrl::SetupColours() { - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetDefaultForegroundColour()); + wxColour bkgndColour; +// if (IsEditable() || (m_windowStyle & wxTE_MULTILINE)) + bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW); +// else +// bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE); + + SetBackgroundColour(bkgndColour); + SetForegroundColour(GetParent()->GetForegroundColour()); } -wxString wxTextCtrl::GetValue(void) 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; -} +// ---------------------------------------------------------------------------- +// set/get the controls text +// ---------------------------------------------------------------------------- -void wxTextCtrl::SetValue(const wxString& value) +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 ++; + 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; } - tmp[j] = 0; - SetWindowText((HWND) GetHWND(), tmp); - delete[] tmp; - } - else - SetWindowText((HWND) GetHWND(), (const char *)value); +#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::SetSize(int x, int y, int width, int height, int sizeFlags) +void wxTextCtrl::SetValue(const wxString& value) { - int currentX, currentY; - GetPosition(¤tX, ¤tY); - int x1 = x; - int y1 = y; - int w1 = width; - int h1 = height; + // 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); - if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - x1 = currentX; - if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - y1 = currentY; + SetWindowText(GetHwnd(), valueDos.c_str()); - AdjustForParentClientOrigin(x1, y1, sizeFlags); + // for compatibility with the GTK and because it is more logical, we + // move the cursor to the end of the text after SetValue() - int cx; // button font dimensions - int cy; + // GRG, Jun/2000: Changed this back after a lot of discussion + // in the lists. wxWindows 2.2 will have a set of flags to + // customize this behaviour. + //SetInsertionPointEnd(); - wxGetCharSize(GetHWND(), &cx, &cy,GetFont()); + AdjustSpaceLimit(); + } +} - int control_width, control_height, control_x, control_y; +void wxTextCtrl::WriteText(const wxString& value) +{ + wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); - // If we're prepared to use the existing size, then... - if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO)) - { - GetSize(&w1, &h1); - } + SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); - // Deal with default size (using -1 values) - if (w1<=0) - w1 = DEFAULT_ITEM_WIDTH; + AdjustSpaceLimit(); +} - control_x = x1; - control_y = y1; - control_width = w1; - control_height = h1; +void wxTextCtrl::AppendText(const wxString& text) +{ + SetInsertionPointEnd(); + WriteText(text); +} - // Calculations may have made text size too small - if (control_height <= 0) - control_height = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); +void wxTextCtrl::Clear() +{ + SetWindowText(GetHwnd(), wxT("")); +} - if (control_width <= 0) - control_width = DEFAULT_ITEM_WIDTH; +// ---------------------------------------------------------------------------- +// Clipboard operations +// ---------------------------------------------------------------------------- - MoveWindow((HWND) GetHWND(), (int)control_x, (int)control_y, - (int)control_width, (int)control_height, TRUE); +void wxTextCtrl::Copy() +{ + if (CanCopy()) + { + HWND hWnd = GetHwnd(); + SendMessage(hWnd, WM_COPY, 0, 0L); + } } -// Clipboard operations -void wxTextCtrl::Copy(void) +void wxTextCtrl::Cut() +{ + if (CanCut()) + { + HWND hWnd = GetHwnd(); + SendMessage(hWnd, WM_CUT, 0, 0L); + } +} + +void wxTextCtrl::Paste() { - HWND hWnd = (HWND) GetHWND(); - SendMessage(hWnd, WM_COPY, 0, 0L); + if (CanPaste()) + { + HWND hWnd = GetHwnd(); + SendMessage(hWnd, WM_PASTE, 0, 0L); + } } -void wxTextCtrl::Cut(void) +bool wxTextCtrl::CanCopy() const { - HWND hWnd = (HWND) GetHWND(); - SendMessage(hWnd, WM_CUT, 0, 0L); + // Can copy if there's a selection + long from, to; + GetSelection(& from, & to); + return (from != to) ; } -void wxTextCtrl::Paste(void) +bool wxTextCtrl::CanCut() const { - HWND hWnd = (HWND) GetHWND(); - SendMessage(hWnd, WM_PASTE, 0, 0L); + // Can cut if there's a selection + long from, to; + GetSelection(& from, & to); + return (from != to) && (IsEditable()); } +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 = (HWND) GetHWND(); - SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); + HWND hWnd = GetHwnd(); + SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); } void wxTextCtrl::SetInsertionPoint(long pos) { - HWND hWnd = (HWND) GetHWND(); + 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); +#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 // 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 wxChar *nothing = _T(""); + SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); } -void wxTextCtrl::SetInsertionPointEnd(void) +void wxTextCtrl::SetInsertionPointEnd() { - long pos = GetLastPosition(); - SetInsertionPoint(pos); + long pos = GetLastPosition(); + SetInsertionPoint(pos); } -long wxTextCtrl::GetInsertionPoint(void) const +long wxTextCtrl::GetInsertionPoint() const { -#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; - } +#if wxUSE_RICHEDIT + 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((HWND) GetHWND(), EM_GETSEL, 0, 0L); - return Pos&0xFFFF; + DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); + return Pos & 0xFFFF; } -long wxTextCtrl::GetLastPosition(void) const +long wxTextCtrl::GetLastPosition() const { - HWND hWnd = (HWND) GetHWND(); + HWND hWnd = GetHwnd(); // Will always return a number > 0 (according to docs) int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)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); @@ -440,12 +609,50 @@ long wxTextCtrl::GetLastPosition(void) 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) { - HWND hWnd = (HWND) GetHWND(); +#if wxUSE_CLIPBOARD + HWND hWnd = GetHwnd(); long fromChar = from; long toChar = to; - + // Set selection and remove it #ifdef __WIN32__ SendMessage(hWnd, EM_SETSEL, fromChar, toChar); @@ -455,18 +662,21 @@ 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); +#else + wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0."); +#endif } void wxTextCtrl::Remove(long from, long to) { - HWND hWnd = (HWND) GetHWND(); + HWND hWnd = GetHwnd(); long fromChar = from; long toChar = to; - + // Cut all selected text #ifdef __WIN32__ SendMessage(hWnd, EM_SETSEL, fromChar, toChar); @@ -478,18 +688,18 @@ void wxTextCtrl::Remove(long from, long to) void wxTextCtrl::SetSelection(long from, long to) { - HWND hWnd = (HWND) GetHWND(); + 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; toChar = -1; } - + #ifdef __WIN32__ SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar); SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); @@ -501,164 +711,82 @@ void wxTextCtrl::SetSelection(long from, long to) bool wxTextCtrl::LoadFile(const wxString& file) { - if (!FileExists(WXSTRINGCAST file)) - return FALSE; - - m_fileName = file; - - Clear(); - - ifstream input(WXSTRINGCAST file, ios::nocreate | 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... - - 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; - - ofstream output((char*) (const char*) theFile); - if (output.bad()) - return FALSE; - - // 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; - - // Convert \r\n to just \n - while (*pstr) - { - if (*pstr != '\r') - output << *pstr; - pstr++; - } - - farfree(tmp_buffer); - SendMessage((HWND) 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 ( wxTextCtrlBase::LoadFile(file) ) { - if (text[i] == '\n') - { - newtext[j] = '\r'; - j ++; - } - newtext[j] = text[i]; - i ++; - j ++; + // update the size limit if needed + AdjustSpaceLimit(); + + return TRUE; } - newtext[j] = 0; - SendMessage((HWND) GetHWND(), EM_REPLACESEL, 0, (LPARAM)newtext); - delete[] newtext; -} -void wxTextCtrl::Clear(void) -{ -// SendMessage((HWND) GetHWND(), WM_SETTEXT, 0, (LPARAM)""); - SetWindowText((HWND) GetHWND(), ""); + return FALSE; } -bool wxTextCtrl::IsModified(void) const +bool wxTextCtrl::IsModified() const { - return (SendMessage((HWND) GetHWND(), EM_GETMODIFY, 0, 0) != 0); + 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(); + 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); } -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); + 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) { - 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: @@ -674,401 +802,459 @@ 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); } 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); + int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); return len; } 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 = len; + len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); + buf[len] = 0; + + str.UngetWriteBuf(len); + + return str; +} + +// ---------------------------------------------------------------------------- +// Undo/redo +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Undo() +{ + if (CanUndo()) + { + ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); + } } -/* - * Text item - */ - +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); +} + +// ---------------------------------------------------------------------------- +// 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]); - } + // 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) +void wxTextCtrl::OnChar(wxKeyEvent& event) { - // 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); -#else - return c!=EOF ? c : 0; // this should make everybody happy -#endif + 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; + } -/* 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; -*/ + // no, we didn't process it + event.Skip(); } -//========================================================================= -// called then "endl" is output (gcc) or then explicit sync is done (Borland) -//========================================================================= -int wxTextCtrl::sync(void) +bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { - // 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; -*/ + 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 + AdjustSpaceLimit(); + 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; } -//========================================================================= -// Should not be called by a "ostream". Used by a "istream" -//========================================================================= -int wxTextCtrl::underflow(void) +WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, + WXUINT message, + WXWPARAM wParam, + WXLPARAM lParam) { - return EOF; +#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 -wxTextCtrl& wxTextCtrl::operator<<(const wxString& s) + 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 + +void wxTextCtrl::AdjustSpaceLimit() { - WriteText(s); - return *this; +#ifndef __WIN16__ + unsigned int len = ::GetWindowTextLength(GetHwnd()), + limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); + if ( len >= limit ) + { + limit = len + 0x8000; // 32Kb + +#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 } -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); - - if ( GetEventHandler()->ProcessEvent(event) ) - return; - } - - event.Skip(); + event.Enable( CanRedo() ); } -long wxTextCtrl::MSWGetDlgCode() +// ---------------------------------------------------------------------------- +// colour setting for the rich edit controls +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +// Watcom C++ doesn't define this +#ifndef SCF_ALL +#define SCF_ALL 0x0004 +#endif + +bool wxTextCtrl::SetBackgroundColour(const wxColour& colour) { - long lRc = DLGC_WANTCHARS | DLGC_WANTARROWS; - if ( m_windowStyle & wxPROCESS_ENTER ) - lRc |= DLGC_WANTMESSAGE; - else if ( m_windowStyle & wxTE_MULTILINE ) - lRc |= DLGC_WANTMESSAGE; + 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 lRc; + return TRUE; } -void wxTextCtrl::OnEraseBackground(wxEraseEvent& event) +bool wxTextCtrl::SetForegroundColour(const wxColour& colour) { - if ( m_windowStyle & wxTE_MULTILINE ) + if ( !wxTextCtrlBase::SetForegroundColour(colour) ) + { + // colour didn't really change + return FALSE; + } + + if ( IsRich() ) { - // 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); - - ::FillRect ((HDC) event.GetDC()->GetHDC(), &rect, hBrush); - ::DeleteObject(hBrush); - ::SetMapMode((HDC) event.GetDC()->GetHDC(), mode); -*/ + // 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); } -// wxWindow::OnEraseBackground(event); + + return TRUE; } -bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) +#endif // wxUSE_RICHEDIT + +// ---------------------------------------------------------------------------- +// wxRichEditModule +// ---------------------------------------------------------------------------- + +#if wxUSE_RICHEDIT + +bool wxRichEditModule::OnInit() { -/* - // 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; + // don't do anything - we will load it when needed + return TRUE; } +void wxRichEditModule::OnExit() +{ + if ( ms_hRichEdit ) + { + FreeLibrary(ms_hRichEdit); + } +} -// For Rich Edit controls. Do we need it? -#if 0 -#if defined(__WIN95__) -bool wxTextCtrl::MSWNotify(WXWPARAM wParam, WXLPARAM lParam) +/* static */ +bool wxRichEditModule::Load(int version) { - 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; + 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 -#endif + +#endif // wxUSE_RICHEDIT