X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fa40e7a17559c9328be4e0202c9c87dc7adb562e..34eeb223b428c2e9ec90d88348e7e62dfeb1cb65:/src/common/textcmn.cpp diff --git a/src/common/textcmn.cpp b/src/common/textcmn.cpp index 0ce243a141..6f53679d6b 100644 --- a/src/common/textcmn.cpp +++ b/src/common/textcmn.cpp @@ -1,21 +1,18 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: common/textcmn.cpp +// Name: src/common/textcmn.cpp // Purpose: implementation of platform-independent functions of wxTextCtrl // Author: Julian Smart // Modified by: // Created: 13.07.99 // RCS-ID: $Id$ -// Copyright: (c) wxWindows team -// Licence: wxWindows license +// Copyright: (c) wxWidgets team +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ -#ifdef __GNUG__ - #pragma implementation "textctrlbase.h" -#endif - + // for compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -23,10 +20,17 @@ #pragma hdrstop #endif +#ifndef WX_PRECOMP + #include "wx/event.h" +#endif // WX_PRECOMP + +#if wxUSE_TEXTCTRL + +#include "wx/textctrl.h" + #ifndef WX_PRECOMP #include "wx/intl.h" #include "wx/log.h" - #include "wx/textctrl.h" #endif // WX_PRECOMP #include "wx/ffile.h" @@ -43,38 +47,158 @@ // implementation // ============================================================================ +IMPLEMENT_DYNAMIC_CLASS(wxTextUrlEvent, wxCommandEvent) + +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_MAXLEN) + +IMPLEMENT_ABSTRACT_CLASS(wxTextCtrlBase, wxControl) + // ---------------------------------------------------------------------------- -// ctor +// style functions - not implemented here // ---------------------------------------------------------------------------- -wxTextCtrlBase::wxTextCtrlBase() +wxTextAttr::wxTextAttr(const wxColour& colText, + const wxColour& colBack, + const wxFont& font, + wxTextAttrAlignment alignment) + : m_colText(colText), m_colBack(colBack), m_font(font), m_textAlignment(alignment) { -#ifndef NO_TEXT_WINDOW_STREAM - #if wxUSE_IOSTREAMH - if (allocate()) - setp(base(),ebuf()); - #else - m_streambuf=new char[64]; - setp(m_streambuf,m_streambuf+64); - #endif //wxUSE_IOSTREAMH -#endif // NO_TEXT_WINDOW_STREAM + m_flags = 0; + m_leftIndent = 0; + m_leftSubIndent = 0; + m_rightIndent = 0; + if (m_colText.Ok()) m_flags |= wxTEXT_ATTR_TEXT_COLOUR; + if (m_colBack.Ok()) m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; + if (m_font.Ok()) m_flags |= wxTEXT_ATTR_FONT; + if (alignment != wxTEXT_ALIGNMENT_DEFAULT) + m_flags |= wxTEXT_ATTR_ALIGNMENT; } -wxTextCtrlBase::~wxTextCtrlBase() +void wxTextAttr::Init() { -#ifndef NO_TEXT_WINDOW_STREAM -#if !wxUSE_IOSTREAMH - delete m_streambuf; -#endif -#endif + m_textAlignment = wxTEXT_ALIGNMENT_DEFAULT; + m_flags = 0; + m_leftIndent = 0; + m_leftSubIndent = 0; + m_rightIndent = 0; +} + +/* static */ +wxTextAttr wxTextAttr::Combine(const wxTextAttr& attr, + const wxTextAttr& attrDef, + const wxTextCtrlBase *text) +{ + wxFont font = attr.GetFont(); + if ( !font.Ok() ) + { + font = attrDef.GetFont(); + + if ( text && !font.Ok() ) + font = text->GetFont(); + } + + wxColour colFg = attr.GetTextColour(); + if ( !colFg.Ok() ) + { + colFg = attrDef.GetTextColour(); + + if ( text && !colFg.Ok() ) + colFg = text->GetForegroundColour(); + } + + wxColour colBg = attr.GetBackgroundColour(); + if ( !colBg.Ok() ) + { + colBg = attrDef.GetBackgroundColour(); + + if ( text && !colBg.Ok() ) + colBg = text->GetBackgroundColour(); + } + + wxTextAttr newAttr(colFg, colBg, font); + + if (attr.HasAlignment()) + newAttr.SetAlignment(attr.GetAlignment()); + else if (attrDef.HasAlignment()) + newAttr.SetAlignment(attrDef.GetAlignment()); + + if (attr.HasTabs()) + newAttr.SetTabs(attr.GetTabs()); + else if (attrDef.HasTabs()) + newAttr.SetTabs(attrDef.GetTabs()); + + if (attr.HasLeftIndent()) + newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent()); + else if (attrDef.HasLeftIndent()) + newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent()); + + if (attr.HasRightIndent()) + newAttr.SetRightIndent(attr.GetRightIndent()); + else if (attrDef.HasRightIndent()) + newAttr.SetRightIndent(attrDef.GetRightIndent()); + + return newAttr; +} + +void wxTextAttr::operator= (const wxTextAttr& attr) +{ + m_font = attr.m_font; + m_colText = attr.m_colText; + m_colBack = attr.m_colBack; + m_textAlignment = attr.m_textAlignment; + m_leftIndent = attr.m_leftIndent; + m_leftSubIndent = attr.m_leftSubIndent; + m_rightIndent = attr.m_rightIndent; + m_tabs = attr.m_tabs; + m_flags = attr.m_flags; +} + + +// apply styling to text range +bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end), + const wxTextAttr& WXUNUSED(style)) +{ + // to be implemented in derived TextCtrl classes + return false; +} + +// get the styling at the given position +bool wxTextCtrlBase::GetStyle(long WXUNUSED(position), wxTextAttr& WXUNUSED(style)) +{ + // to be implemented in derived TextCtrl classes + return false; +} + +// change default text attributes +bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr& style) +{ + // keep the old attributes if the new style doesn't specify them unless the + // new style is empty - then reset m_defaultStyle (as there is no other way + // to do it) + if ( style.IsDefault() ) + m_defaultStyle = style; + else + m_defaultStyle = wxTextAttr::Combine(style, m_defaultStyle, this); + + return true; +} + +// get default text attributes +const wxTextAttr& wxTextCtrlBase::GetDefaultStyle() const +{ + return m_defaultStyle; } // ---------------------------------------------------------------------------- // file IO functions // ---------------------------------------------------------------------------- -bool wxTextCtrlBase::LoadFile(const wxString& filename) +bool wxTextCtrlBase::DoLoadFile(const wxString& filename, int WXUNUSED(fileType)) { +#if wxUSE_FFILE wxFFile file(filename); if ( file.IsOpened() ) { @@ -87,40 +211,49 @@ bool wxTextCtrlBase::LoadFile(const wxString& filename) m_filename = filename; - return TRUE; + return true; } } wxLogError(_("File couldn't be loaded.")); +#endif // wxUSE_FFILE - return FALSE; + return false; } -bool wxTextCtrlBase::SaveFile(const wxString& filename) +bool wxTextCtrlBase::SaveFile(const wxString& filename, int fileType) { - wxString filenameToUse = filename.IsEmpty() ? m_filename : filename; - if ( !filenameToUse ) + wxString filenameToUse = filename.empty() ? m_filename : filename; + if ( filenameToUse.empty() ) { // what kind of message to give? is it an error or a program bug? wxLogDebug(wxT("Can't save textctrl to file without filename.")); - return FALSE; + return false; } - wxFFile file(filename, "w"); + return DoSaveFile(filenameToUse, fileType); +} + +bool wxTextCtrlBase::DoSaveFile(const wxString& filename, int WXUNUSED(fileType)) +{ +#if wxUSE_FFILE + wxFFile file(filename, _T("w")); if ( file.IsOpened() && file.Write(GetValue()) ) { + // if it worked, save for future calls + m_filename = filename; + // it's not modified any longer DiscardEdits(); - m_filename = filename; - - return TRUE; + return true; } +#endif // wxUSE_FFILE wxLogError(_("The text couldn't be saved.")); - return FALSE; + return false; } // ---------------------------------------------------------------------------- @@ -174,36 +307,247 @@ wxTextCtrl& wxTextCtrlBase::operator<<(const wxChar c) // streambuf methods implementation // ---------------------------------------------------------------------------- -#ifndef NO_TEXT_WINDOW_STREAM +#if wxHAS_TEXT_WINDOW_STREAM -int wxTextCtrlBase::overflow( int WXUNUSED(c) ) +int wxTextCtrlBase::overflow(int c) { - 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; + AppendText((wxChar)c); + + // return something different from EOF + return 0; } -int wxTextCtrlBase::sync() +#endif // wxHAS_TEXT_WINDOW_STREAM + +// ---------------------------------------------------------------------------- +// clipboard stuff +// ---------------------------------------------------------------------------- + +bool wxTextCtrlBase::CanCopy() const { - 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; + // can copy if there's a selection + long from, to; + GetSelection(&from, &to); + return from != to; +} + +bool wxTextCtrlBase::CanCut() const +{ + // can cut if there's a selection and if we're not read only + return CanCopy() && IsEditable(); +} + +bool wxTextCtrlBase::CanPaste() const +{ + // can paste if we are not read only + return IsEditable(); +} + +// ---------------------------------------------------------------------------- +// emulating key presses +// ---------------------------------------------------------------------------- + +#ifdef __WIN32__ +// the generic version is unused in wxMSW +bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& WXUNUSED(event)) +{ + return false; +} +#else // !__WIN32__ +bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& event) +{ + wxChar ch = 0; + int keycode = event.GetKeyCode(); + switch ( keycode ) + { + case WXK_NUMPAD0: + case WXK_NUMPAD1: + case WXK_NUMPAD2: + case WXK_NUMPAD3: + case WXK_NUMPAD4: + case WXK_NUMPAD5: + case WXK_NUMPAD6: + case WXK_NUMPAD7: + case WXK_NUMPAD8: + case WXK_NUMPAD9: + ch = (wxChar)(_T('0') + keycode - WXK_NUMPAD0); + break; + + case WXK_MULTIPLY: + case WXK_NUMPAD_MULTIPLY: + ch = _T('*'); + break; + + case WXK_ADD: + case WXK_NUMPAD_ADD: + ch = _T('+'); + break; + + case WXK_SUBTRACT: + case WXK_NUMPAD_SUBTRACT: + ch = _T('-'); + break; + + case WXK_DECIMAL: + case WXK_NUMPAD_DECIMAL: + ch = _T('.'); + break; + + case WXK_DIVIDE: + case WXK_NUMPAD_DIVIDE: + ch = _T('/'); + break; + + case WXK_DELETE: + case WXK_NUMPAD_DELETE: + // delete the character at cursor + { + const long pos = GetInsertionPoint(); + if ( pos < GetLastPosition() ) + Remove(pos, pos + 1); + } + break; + + case WXK_BACK: + // delete the character before the cursor + { + const long pos = GetInsertionPoint(); + if ( pos > 0 ) + Remove(pos - 1, pos); + } + break; + + default: +#if wxUSE_UNICODE + if ( event.GetUnicodeKey() ) + { + ch = event.GetUnicodeKey(); + } + else +#endif + if ( keycode < 256 && keycode >= 0 && wxIsprint(keycode) ) + { + // FIXME this is not going to work for non letters... + if ( !event.ShiftDown() ) + { + keycode = wxTolower(keycode); + } + + ch = (wxChar)keycode; + } + else + { + ch = _T('\0'); + } + } + + if ( ch ) + { + WriteText(ch); + + return true; + } + + return false; +} +#endif // !__WIN32__ + +// ---------------------------------------------------------------------------- +// selection and ranges +// ---------------------------------------------------------------------------- + +void wxTextCtrlBase::SelectAll() +{ + SetSelection(0, GetLastPosition()); } -int wxTextCtrlBase::underflow() +wxString wxTextCtrlBase::GetStringSelection() const { - return EOF; + long from, to; + GetSelection(&from, &to); + + return GetRange(from, to); } -#endif // NO_TEXT_WINDOW_STREAM +wxString wxTextCtrlBase::GetRange(long from, long to) const +{ + wxString sel; + if ( from < to ) + { + sel = GetValue().Mid(from, to - from); + } + + return sel; +} + +// do the window-specific processing after processing the update event +void wxTextCtrlBase::DoUpdateWindowUI(wxUpdateUIEvent& event) +{ + // call inherited, but skip the wxControl's version, and call directly the + // wxWindow's one instead, because the only reason why we are overriding this + // function is that we want to use SetValue() instead of wxControl::SetLabel() + wxWindowBase::DoUpdateWindowUI(event); + + // update text + if ( event.GetSetText() ) + { + if ( event.GetText() != GetValue() ) + SetValue(event.GetText()); + } +} + +// ---------------------------------------------------------------------------- +// hit testing +// ---------------------------------------------------------------------------- + +wxTextCtrlHitTestResult +wxTextCtrlBase::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const +{ + // implement in terms of the other overload as the native ports typically + // can get the position and not (x, y) pair directly (although wxUniv + // directly gets x and y -- and so overrides this method as well) + long pos; + wxTextCtrlHitTestResult rc = HitTest(pt, &pos); + + if ( rc != wxTE_HT_UNKNOWN ) + { + PositionToXY(pos, x, y); + } + + return rc; +} + +wxTextCtrlHitTestResult +wxTextCtrlBase::HitTest(const wxPoint& WXUNUSED(pt), + long * WXUNUSED(pos)) const +{ + // not implemented + return wxTE_HT_UNKNOWN; +} + +// ---------------------------------------------------------------------------- +// events +// ---------------------------------------------------------------------------- + +void wxTextCtrlBase::SendTextUpdatedEvent() +{ + wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId()); + + // do not do this as it could be very inefficient if the text control + // contains a lot of text and we're not using ref-counted wxString + // implementation -- instead, event.GetString() will query the control for + // its current text if needed + //event.SetString(GetValue()); + + event.SetEventObject(this); + GetEventHandler()->ProcessEvent(event); +} + +#else // !wxUSE_TEXTCTRL + +// define this one even if !wxUSE_TEXTCTRL because it is also used by other +// controls (wxComboBox and wxSpinCtrl) + +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED) +#endif // wxUSE_TEXTCTRL/!wxUSE_TEXTCTRL