/////////////////////////////////////////////////////////////////////////////// Name:        wxedit.cpp// Author:      Robert Roebling// Created:     04/07/02// Copyright://///////////////////////////////////////////////////////////////////////////// For compilers that support precompilation#include "wx/wxprec.h"#ifdef __BORLANDC__    #pragma hdrstop#endif#include "wx/filename.h"#include "wx/config.h"// Include private headers#include "wxedit.h"//------------------------------------------------------------------------------// constants//------------------------------------------------------------------------------#define HISTORY_ENTRIES 3//------------------------------------------------------------------------------// MyFrame//------------------------------------------------------------------------------BEGIN_EVENT_TABLE(MyFrame,wxFrame)    EVT_MENU(ID_ABOUT, MyFrame::OnAbout)    EVT_MENU(ID_NEW, MyFrame::OnNew)    EVT_MENU(ID_OPEN, MyFrame::OnOpen)    EVT_MENU(ID_SAVE, MyFrame::OnSave)    EVT_MENU(ID_SAVEAS, MyFrame::OnSaveAs)    EVT_MENU(ID_QUIT, MyFrame::OnQuit)    EVT_MENU(ID_COPY, MyFrame::OnCopy)    EVT_MENU(ID_CUT, MyFrame::OnCut)    EVT_MENU(ID_PASTE, MyFrame::OnPaste)    EVT_MENU(ID_DELETE, MyFrame::OnDelete)    EVT_MENU_RANGE(ID_LAST_1, ID_LAST_3, MyFrame::OnLastFiles)    EVT_CLOSE(MyFrame::OnCloseWindow)    EVT_UPDATE_UI(wxID_ANY,MyFrame::OnUpdateUI)END_EVENT_TABLE()MyFrame::MyFrame( wxWindow *parent, wxWindowID id, const wxString &title,    const wxPoint &position, const wxSize& size, long style ) :    wxFrame( parent, id, title, position, size, style ){    // Create menu and status bar.    CreateMyMenuBar();#if wxUSE_STATUSBAR    CreateStatusBar(1);    SetStatusText( _T("Welcome to wxEdit!") );#endif // wxUSE_STATUSBAR    // Create edit control. Since it is the only    // control in the frame, it will be resized    // to file it out.    m_text = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE );    // Read .ini file for file history etc.    wxConfig *conf = (wxConfig*) wxConfig::Get();    int entries = 0;    conf->Read( _T("/History/Count"), &entries );    for (int i = 0; i < entries; i++)    {        wxString tmp;        tmp.Printf( _T("/History/File%d"), (int)i );        wxString res;        conf->Read( tmp, &res );        if (!res.empty())            AddToHistory( res );    }}void MyFrame::MakeHistory(){    wxMenuBar *mb = GetMenuBar();    wxASSERT( mb );    int max = m_history.GetCount();    if (max > HISTORY_ENTRIES)        max = HISTORY_ENTRIES;    for (int i = 0; i < max; i++)    {        wxMenu *menu = NULL;        mb->FindItem( ID_LAST_1 + i, &menu );        wxASSERT( menu );        wxFileName fname( m_history[(size_t)i] );        menu->SetLabel( ID_LAST_1 + i, fname.GetFullName() );    }}void MyFrame::AddToHistory( const wxString &fname ){    // Fill menu with history index    int index = m_history.Index( fname );    if (index != wxNOT_FOUND)        m_history.RemoveAt( (size_t) index );    m_history.Insert( fname, 0 );    // Update menu    MakeHistory();}void MyFrame::CreateMyMenuBar(){    wxMenu *file_menu = new wxMenu;    file_menu->Append( ID_ABOUT, _T("About..."), _T("Program info") );    file_menu->AppendSeparator();    file_menu->Append( ID_NEW, _T("New..."), _T("New text") );    file_menu->Append( ID_OPEN, _T("Open..."), _T("Open text") );    file_menu->Append( ID_SAVE, _T("Save"), _T("Save text") );    file_menu->Append( ID_SAVEAS, _T("Save as..."), _T("Save text as...") );    file_menu->AppendSeparator();    file_menu->Append( ID_QUIT, _T("Quit..."), _T("Quit program") );    wxMenu *edit_menu = new wxMenu;    edit_menu->Append( ID_COPY, _T("Copy") );    edit_menu->Append( ID_CUT, _T("Cut") );    edit_menu->Append( ID_PASTE, _T("Paste") );    edit_menu->AppendSeparator();    edit_menu->Append( ID_DELETE, _T("Delete") );    wxMenu *history_menu = new wxMenu;    history_menu->Append( ID_LAST_1, _T("No file.") );    history_menu->Append( ID_LAST_2, _T("No file.") );    history_menu->Append( ID_LAST_3, _T("No file.") );    wxMenuBar *menu_bar = new wxMenuBar();    menu_bar->Append( file_menu, _T("&File") );    menu_bar->Append( edit_menu, _T("&Edit") );    menu_bar->Append( history_menu, _T("&History") );    SetMenuBar( menu_bar );}void MyFrame::OnCopy( wxCommandEvent& WXUNUSED(event) ){}void MyFrame::OnCut( wxCommandEvent& WXUNUSED(event) ){}void MyFrame::OnPaste( wxCommandEvent& WXUNUSED(event) ){}void MyFrame::OnDelete( wxCommandEvent& WXUNUSED(event) ){}void MyFrame::OnLastFiles( wxCommandEvent &event ){    if (!Discard()) return;    if (!m_filename.empty())        AddToHistory( m_filename );    size_t index = event.GetId() - ID_LAST_1;    if( index < m_history.GetCount() )    {        m_filename = m_history[index];        m_text->Clear();        m_text->LoadFile( m_filename );#if wxUSE_STATUSBAR        SetStatusText( m_filename );#endif // wxUSE_STATUSBAR    }    else    {        wxMessageBox(            _T("This entry is empty. It should be filled once you will start opening."),            _T("Empty entry"),            wxOK | wxICON_INFORMATION,            this        );    }}void MyFrame::OnNew( wxCommandEvent& WXUNUSED(event) ){    if (!Discard()) return;    m_text->Clear();    if (!m_filename.empty())        AddToHistory( m_filename );    m_filename = wxEmptyString;#if wxUSE_STATUSBAR    SetStatusText( wxEmptyString );#endif // wxUSE_STATUSBAR}void MyFrame::OnOpen( wxCommandEvent& WXUNUSED(event) ){#if wxUSE_FILEDLG    if (!Discard()) return;    wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,        _T("Text file (*.txt)|*.txt|Any file (*)|*"),        wxFD_OPEN|wxFD_FILE_MUST_EXIST );    if (dialog.ShowModal() == wxID_OK)    {        m_text->Clear();#ifdef __WXX11__        // requires wxUSE_UNIV_TEXTCTRL to be set to 0#if 0        wxFileName fname( dialog.GetPath() );        if ((fname.GetExt() == _T("cpp")) ||            (fname.GetExt() == _T("c")) ||            (fname.GetExt() == _T("h")) ||            (fname.GetExt() == _T("cxx")) ||            (fname.GetExt() == _T("hxx")))        {            m_text->SetLanguage( wxSOURCE_LANG_CPP );        }        else        if (fname.GetExt() == _T("py"))        {            m_text->SetLanguage( wxSOURCE_LANG_PYTHON );        }        else        if ((fname.GetExt() == _T("pl")) ||            (fname.GetExt() == _T("pm")))        {            m_text->SetLanguage( wxSOURCE_LANG_PYTHON );        }        else        {            m_text->SetLanguage( wxSOURCE_LANG_NONE );        }#endif#endif        m_filename = dialog.GetPath();        m_text->LoadFile( m_filename );#if wxUSE_STATUSBAR        SetStatusText( m_filename );#endif // wxUSE_STATUSBAR    }#endif // wxUSE_FILEDLG}void MyFrame::OnSave( wxCommandEvent& WXUNUSED(event) ){    Save();}void MyFrame::OnSaveAs( wxCommandEvent& WXUNUSED(event) ){#if wxUSE_FILEDLG    wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,        _T("Text file (*.txt)|*.txt|Any file (*)|*"),        wxFD_SAVE|wxFD_OVERWRITE_PROMPT );    if (dialog.ShowModal() == wxID_OK)    {        m_filename = dialog.GetPath();        m_text->SaveFile( m_filename );#if wxUSE_STATUSBAR        SetStatusText( m_filename );#endif // wxUSE_STATUSBAR    }#endif // wxUSE_FILEDLG}void MyFrame::OnAbout( wxCommandEvent& WXUNUSED(event) ){    wxMessageDialog dialog( this, _T("Welcome to wxEdit\n(C)opyright Robert Roebling"),        _T("About wxEdit"), wxOK|wxICON_INFORMATION );    dialog.ShowModal();}void MyFrame::OnQuit( wxCommandEvent& WXUNUSED(event) ){     Close( true );}bool MyFrame::Save(){    wxCommandEvent event;    if (m_filename.empty())        OnSaveAs( event );    else        m_text->SaveFile( m_filename );   return true;}bool MyFrame::Discard(){    if (m_text->IsModified())    {        wxMessageDialog dialog( this, _T("Text has been\nmodified! Save?"),            _T("wxEdit"), wxYES_NO|wxCANCEL|wxICON_EXCLAMATION );        int ret = dialog.ShowModal();        if (ret == wxID_CANCEL)            return false;        if (ret == wxID_YES)        {            if (!Save())                return false;        }    }    return true;}void MyFrame::OnUpdateUI( wxUpdateUIEvent &event ){    switch (event.GetId())    {        case ID_COPY:            event.Enable( false );            break;        case ID_CUT:            event.Enable( false );            break;        case ID_PASTE:            event.Enable( false );            break;        case ID_DELETE:#ifdef __WXUNIVERSAL__            event.Enable( m_text->HasSelection() );#else            {              long selFrom, selTo;              m_text->GetSelection(& selFrom, & selTo);              event.Enable( selFrom != selTo );            }#endif            break;        default:            break;    }}void MyFrame::OnCloseWindow( wxCloseEvent& WXUNUSED(event) ){    // Save changes?    if (!Discard()) return;    // Add current to history    if (!m_filename.empty())        AddToHistory( m_filename );    // Write .ini file    wxConfig *conf = (wxConfig*) wxConfig::Get();    int max = HISTORY_ENTRIES;    if (m_history.GetCount() < (size_t)max)        max = m_history.GetCount();    conf->Write( _T("/History/Count"), max );    for (int i = 0; i < max; i++)    {        wxString tmp;        tmp.Printf( _T("/History/File%d"), (int)i );        conf->Write( tmp, m_history[(size_t)i] );    }    // Flush and delete config    delete wxConfig::Set( NULL );    // Finally destroy window and quit    Destroy();}//------------------------------------------------------------------------------// MyApp//------------------------------------------------------------------------------IMPLEMENT_APP(MyApp)bool MyApp::OnInit(){    SetVendorName(_T("Free world"));    SetAppName(_T("wxEdit"));    MyFrame *frame = new MyFrame( NULL, wxID_ANY, _T("wxEdit"), wxPoint(20,20), wxSize(500,340) );    frame->Show( true );    return true;}int MyApp::OnExit(){    return 0;}