45e6e6f8ab
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44354 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
423 lines
10 KiB
C++
423 lines
10 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wxedit.cpp
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// Author: Robert Roebling
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// Created: 04/07/02
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// Copyright:
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/filename.h"
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#include "wx/config.h"
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// Include private headers
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#include "wxedit.h"
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//------------------------------------------------------------------------------
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// constants
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//------------------------------------------------------------------------------
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#define HISTORY_ENTRIES 3
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//------------------------------------------------------------------------------
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// MyFrame
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//------------------------------------------------------------------------------
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BEGIN_EVENT_TABLE(MyFrame,wxFrame)
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EVT_MENU(ID_ABOUT, MyFrame::OnAbout)
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EVT_MENU(ID_NEW, MyFrame::OnNew)
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EVT_MENU(ID_OPEN, MyFrame::OnOpen)
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EVT_MENU(ID_SAVE, MyFrame::OnSave)
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EVT_MENU(ID_SAVEAS, MyFrame::OnSaveAs)
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EVT_MENU(ID_QUIT, MyFrame::OnQuit)
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EVT_MENU(ID_COPY, MyFrame::OnCopy)
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EVT_MENU(ID_CUT, MyFrame::OnCut)
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EVT_MENU(ID_PASTE, MyFrame::OnPaste)
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EVT_MENU(ID_DELETE, MyFrame::OnDelete)
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EVT_MENU_RANGE(ID_LAST_1, ID_LAST_3, MyFrame::OnLastFiles)
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EVT_CLOSE(MyFrame::OnCloseWindow)
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EVT_UPDATE_UI(wxID_ANY,MyFrame::OnUpdateUI)
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END_EVENT_TABLE()
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MyFrame::MyFrame( wxWindow *parent, wxWindowID id, const wxString &title,
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const wxPoint &position, const wxSize& size, long style ) :
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wxFrame( parent, id, title, position, size, style )
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{
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// Create menu and status bar.
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CreateMyMenuBar();
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#if wxUSE_STATUSBAR
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CreateStatusBar(1);
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SetStatusText( _T("Welcome to wxEdit!") );
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#endif // wxUSE_STATUSBAR
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// Create edit control. Since it is the only
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// control in the frame, it will be resized
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// to file it out.
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m_text = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE );
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// Read .ini file for file history etc.
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wxConfig *conf = (wxConfig*) wxConfig::Get();
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int entries = 0;
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conf->Read( _T("/History/Count"), &entries );
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for (int i = 0; i < entries; i++)
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{
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wxString tmp;
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tmp.Printf( _T("/History/File%d"), (int)i );
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wxString res;
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conf->Read( tmp, &res );
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if (!res.empty())
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AddToHistory( res );
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}
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}
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void MyFrame::MakeHistory()
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{
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wxMenuBar *mb = GetMenuBar();
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wxASSERT( mb );
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int max = m_history.GetCount();
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if (max > HISTORY_ENTRIES)
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max = HISTORY_ENTRIES;
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for (int i = 0; i < max; i++)
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{
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wxMenu *menu = NULL;
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mb->FindItem( ID_LAST_1 + i, &menu );
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wxASSERT( menu );
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wxFileName fname( m_history[(size_t)i] );
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menu->SetLabel( ID_LAST_1 + i, fname.GetFullName() );
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}
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}
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void MyFrame::AddToHistory( const wxString &fname )
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{
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// Fill menu with history index
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int index = m_history.Index( fname );
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if (index != wxNOT_FOUND)
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m_history.RemoveAt( (size_t) index );
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m_history.Insert( fname, 0 );
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// Update menu
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MakeHistory();
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}
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void MyFrame::CreateMyMenuBar()
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{
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wxMenu *file_menu = new wxMenu;
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file_menu->Append( ID_ABOUT, _T("About..."), _T("Program info") );
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file_menu->AppendSeparator();
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file_menu->Append( ID_NEW, _T("New..."), _T("New text") );
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file_menu->Append( ID_OPEN, _T("Open..."), _T("Open text") );
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file_menu->Append( ID_SAVE, _T("Save"), _T("Save text") );
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file_menu->Append( ID_SAVEAS, _T("Save as..."), _T("Save text as...") );
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file_menu->AppendSeparator();
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file_menu->Append( ID_QUIT, _T("Quit..."), _T("Quit program") );
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wxMenu *edit_menu = new wxMenu;
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edit_menu->Append( ID_COPY, _T("Copy") );
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edit_menu->Append( ID_CUT, _T("Cut") );
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edit_menu->Append( ID_PASTE, _T("Paste") );
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edit_menu->AppendSeparator();
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edit_menu->Append( ID_DELETE, _T("Delete") );
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wxMenu *history_menu = new wxMenu;
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history_menu->Append( ID_LAST_1, _T("No file.") );
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history_menu->Append( ID_LAST_2, _T("No file.") );
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history_menu->Append( ID_LAST_3, _T("No file.") );
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wxMenuBar *menu_bar = new wxMenuBar();
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menu_bar->Append( file_menu, _T("&File") );
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menu_bar->Append( edit_menu, _T("&Edit") );
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menu_bar->Append( history_menu, _T("&History") );
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SetMenuBar( menu_bar );
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}
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void MyFrame::OnCopy( wxCommandEvent& WXUNUSED(event) )
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{
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}
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void MyFrame::OnCut( wxCommandEvent& WXUNUSED(event) )
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{
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}
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void MyFrame::OnPaste( wxCommandEvent& WXUNUSED(event) )
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{
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}
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void MyFrame::OnDelete( wxCommandEvent& WXUNUSED(event) )
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{
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}
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void MyFrame::OnLastFiles( wxCommandEvent &event )
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{
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if (!Discard()) return;
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if (!m_filename.empty())
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AddToHistory( m_filename );
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size_t index = event.GetId() - ID_LAST_1;
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if( index < m_history.GetCount() )
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{
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m_filename = m_history[index];
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m_text->Clear();
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m_text->LoadFile( m_filename );
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#if wxUSE_STATUSBAR
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SetStatusText( m_filename );
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#endif // wxUSE_STATUSBAR
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}
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else
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{
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wxMessageBox(
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_T("This entry is empty. It should be filled once you will start opening."),
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_T("Empty entry"),
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wxOK | wxICON_INFORMATION,
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this
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);
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}
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}
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void MyFrame::OnNew( wxCommandEvent& WXUNUSED(event) )
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{
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if (!Discard()) return;
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m_text->Clear();
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if (!m_filename.empty())
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AddToHistory( m_filename );
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m_filename = wxEmptyString;
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#if wxUSE_STATUSBAR
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SetStatusText( wxEmptyString );
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#endif // wxUSE_STATUSBAR
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}
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void MyFrame::OnOpen( wxCommandEvent& WXUNUSED(event) )
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{
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#if wxUSE_FILEDLG
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if (!Discard()) return;
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wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,
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_T("Text file (*.txt)|*.txt|Any file (*)|*"),
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wxFD_OPEN|wxFD_FILE_MUST_EXIST );
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if (dialog.ShowModal() == wxID_OK)
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{
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m_text->Clear();
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#ifdef __WXX11__
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// requires wxUSE_UNIV_TEXTCTRL to be set to 0
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#if 0
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wxFileName fname( dialog.GetPath() );
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if ((fname.GetExt() == _T("cpp")) ||
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(fname.GetExt() == _T("c")) ||
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(fname.GetExt() == _T("h")) ||
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(fname.GetExt() == _T("cxx")) ||
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(fname.GetExt() == _T("hxx")))
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{
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m_text->SetLanguage( wxSOURCE_LANG_CPP );
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}
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else
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if (fname.GetExt() == _T("py"))
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{
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m_text->SetLanguage( wxSOURCE_LANG_PYTHON );
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}
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else
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if ((fname.GetExt() == _T("pl")) ||
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(fname.GetExt() == _T("pm")))
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{
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m_text->SetLanguage( wxSOURCE_LANG_PYTHON );
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}
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else
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{
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m_text->SetLanguage( wxSOURCE_LANG_NONE );
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}
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#endif
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#endif
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m_filename = dialog.GetPath();
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m_text->LoadFile( m_filename );
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#if wxUSE_STATUSBAR
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SetStatusText( m_filename );
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#endif // wxUSE_STATUSBAR
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}
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#endif // wxUSE_FILEDLG
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}
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void MyFrame::OnSave( wxCommandEvent& WXUNUSED(event) )
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{
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Save();
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}
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void MyFrame::OnSaveAs( wxCommandEvent& WXUNUSED(event) )
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{
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#if wxUSE_FILEDLG
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wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,
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_T("Text file (*.txt)|*.txt|Any file (*)|*"),
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wxFD_SAVE|wxFD_OVERWRITE_PROMPT );
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if (dialog.ShowModal() == wxID_OK)
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{
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m_filename = dialog.GetPath();
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m_text->SaveFile( m_filename );
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#if wxUSE_STATUSBAR
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SetStatusText( m_filename );
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#endif // wxUSE_STATUSBAR
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}
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#endif // wxUSE_FILEDLG
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}
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void MyFrame::OnAbout( wxCommandEvent& WXUNUSED(event) )
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{
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wxMessageDialog dialog( this, _T("Welcome to wxEdit\n(C)opyright Robert Roebling"),
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_T("About wxEdit"), wxOK|wxICON_INFORMATION );
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dialog.ShowModal();
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}
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void MyFrame::OnQuit( wxCommandEvent& WXUNUSED(event) )
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{
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Close( true );
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}
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bool MyFrame::Save()
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{
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wxCommandEvent event;
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if (m_filename.empty())
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OnSaveAs( event );
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else
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m_text->SaveFile( m_filename );
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return true;
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}
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bool MyFrame::Discard()
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{
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if (m_text->IsModified())
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{
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wxMessageDialog dialog( this, _T("Text has been\nmodified! Save?"),
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_T("wxEdit"), wxYES_NO|wxCANCEL|wxICON_EXCLAMATION );
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int ret = dialog.ShowModal();
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if (ret == wxID_CANCEL)
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return false;
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if (ret == wxID_YES)
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{
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if (!Save())
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return false;
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}
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}
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return true;
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}
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void MyFrame::OnUpdateUI( wxUpdateUIEvent &event )
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{
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switch (event.GetId())
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{
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case ID_COPY:
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event.Enable( false );
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break;
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case ID_CUT:
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event.Enable( false );
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break;
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case ID_PASTE:
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event.Enable( false );
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break;
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case ID_DELETE:
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#ifdef __WXUNIVERSAL__
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event.Enable( m_text->HasSelection() );
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#else
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{
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long selFrom, selTo;
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m_text->GetSelection(& selFrom, & selTo);
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event.Enable( selFrom != selTo );
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}
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#endif
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break;
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default:
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break;
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}
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}
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void MyFrame::OnCloseWindow( wxCloseEvent& WXUNUSED(event) )
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{
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// Save changes?
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if (!Discard()) return;
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// Add current to history
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if (!m_filename.empty())
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AddToHistory( m_filename );
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// Write .ini file
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wxConfig *conf = (wxConfig*) wxConfig::Get();
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int max = HISTORY_ENTRIES;
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if (m_history.GetCount() < (size_t)max)
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max = m_history.GetCount();
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conf->Write( _T("/History/Count"), max );
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for (int i = 0; i < max; i++)
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{
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wxString tmp;
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tmp.Printf( _T("/History/File%d"), (int)i );
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conf->Write( tmp, m_history[(size_t)i] );
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}
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// Flush and delete config
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delete wxConfig::Set( NULL );
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// Finally destroy window and quit
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Destroy();
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}
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//------------------------------------------------------------------------------
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// MyApp
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//------------------------------------------------------------------------------
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IMPLEMENT_APP(MyApp)
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bool MyApp::OnInit()
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{
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if ( !wxApp::OnInit() )
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return false;
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SetVendorName(_T("Free world"));
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SetAppName(_T("wxEdit"));
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MyFrame *frame = new MyFrame( NULL, wxID_ANY, _T("wxEdit"), wxPoint(20,20), wxSize(500,340) );
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frame->Show( true );
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return true;
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}
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int MyApp::OnExit()
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{
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return 0;
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}
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