1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wxedit.cpp
3 // Author: Robert Roebling
4 // Created: 04/07/02
5 // Copyright:
6 /////////////////////////////////////////////////////////////////////////////
7
8 // For compilers that support precompilation
9 #include "wx/wxprec.h"
10
11 #ifdef __BORLANDC__
12 #pragma hdrstop
13 #endif
14
15 #include "wx/filename.h"
16 #include "wx/config.h"
17
18 // Include private headers
19 #include "wxedit.h"
20
21 //------------------------------------------------------------------------------
22 // constants
23 //------------------------------------------------------------------------------
24
25 #define HISTORY_ENTRIES 3
26
27 //------------------------------------------------------------------------------
28 // MyFrame
29 //------------------------------------------------------------------------------
30
BEGIN_EVENT_TABLE(MyFrame,wxFrame)31 BEGIN_EVENT_TABLE(MyFrame,wxFrame)
32 EVT_MENU(ID_ABOUT, MyFrame::OnAbout)
33
34 EVT_MENU(ID_NEW, MyFrame::OnNew)
35 EVT_MENU(ID_OPEN, MyFrame::OnOpen)
36 EVT_MENU(ID_SAVE, MyFrame::OnSave)
37 EVT_MENU(ID_SAVEAS, MyFrame::OnSaveAs)
38 EVT_MENU(ID_QUIT, MyFrame::OnQuit)
39
40 EVT_MENU(ID_COPY, MyFrame::OnCopy)
41 EVT_MENU(ID_CUT, MyFrame::OnCut)
42 EVT_MENU(ID_PASTE, MyFrame::OnPaste)
43 EVT_MENU(ID_DELETE, MyFrame::OnDelete)
44
45 EVT_MENU_RANGE(ID_LAST_1, ID_LAST_3, MyFrame::OnLastFiles)
46
47 EVT_CLOSE(MyFrame::OnCloseWindow)
48 EVT_UPDATE_UI(wxID_ANY,MyFrame::OnUpdateUI)
49 END_EVENT_TABLE()
50
51 MyFrame::MyFrame( wxWindow *parent, wxWindowID id, const wxString &title,
52 const wxPoint &position, const wxSize& size, long style ) :
53 wxFrame( parent, id, title, position, size, style )
54 {
55 // Create menu and status bar.
56 CreateMyMenuBar();
57 #if wxUSE_STATUSBAR
58 CreateStatusBar(1);
59 SetStatusText( _T("Welcome to wxEdit!") );
60 #endif // wxUSE_STATUSBAR
61
62 // Create edit control. Since it is the only
63 // control in the frame, it will be resized
64 // to file it out.
65 m_text = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE );
66
67 // Read .ini file for file history etc.
68 wxConfig *conf = (wxConfig*) wxConfig::Get();
69
70 int entries = 0;
71 conf->Read( _T("/History/Count"), &entries );
72
73 for (int i = 0; i < entries; i++)
74 {
75 wxString tmp;
76 tmp.Printf( _T("/History/File%d"), (int)i );
77
78 wxString res;
79 conf->Read( tmp, &res );
80
81 if (!res.empty())
82 AddToHistory( res );
83 }
84 }
85
MakeHistory()86 void MyFrame::MakeHistory()
87 {
88 wxMenuBar *mb = GetMenuBar();
89
90 wxASSERT( mb );
91
92 int max = m_history.GetCount();
93 if (max > HISTORY_ENTRIES)
94 max = HISTORY_ENTRIES;
95
96 for (int i = 0; i < max; i++)
97 {
98 wxMenu *menu = NULL;
99 mb->FindItem( ID_LAST_1 + i, &menu );
100 wxASSERT( menu );
101
102 wxFileName fname( m_history[(size_t)i] );
103 menu->SetLabel( ID_LAST_1 + i, fname.GetFullName() );
104 }
105 }
106
AddToHistory(const wxString & fname)107 void MyFrame::AddToHistory( const wxString &fname )
108 {
109 // Fill menu with history index
110 int index = m_history.Index( fname );
111
112 if (index != wxNOT_FOUND)
113 m_history.RemoveAt( (size_t) index );
114
115 m_history.Insert( fname, 0 );
116
117 // Update menu
118 MakeHistory();
119 }
120
CreateMyMenuBar()121 void MyFrame::CreateMyMenuBar()
122 {
123 wxMenu *file_menu = new wxMenu;
124 file_menu->Append( ID_ABOUT, _T("About..."), _T("Program info") );
125 file_menu->AppendSeparator();
126 file_menu->Append( ID_NEW, _T("New..."), _T("New text") );
127 file_menu->Append( ID_OPEN, _T("Open..."), _T("Open text") );
128 file_menu->Append( ID_SAVE, _T("Save"), _T("Save text") );
129 file_menu->Append( ID_SAVEAS, _T("Save as..."), _T("Save text as...") );
130 file_menu->AppendSeparator();
131 file_menu->Append( ID_QUIT, _T("Quit..."), _T("Quit program") );
132
133 wxMenu *edit_menu = new wxMenu;
134 edit_menu->Append( ID_COPY, _T("Copy") );
135 edit_menu->Append( ID_CUT, _T("Cut") );
136 edit_menu->Append( ID_PASTE, _T("Paste") );
137 edit_menu->AppendSeparator();
138 edit_menu->Append( ID_DELETE, _T("Delete") );
139
140 wxMenu *history_menu = new wxMenu;
141 history_menu->Append( ID_LAST_1, _T("No file.") );
142 history_menu->Append( ID_LAST_2, _T("No file.") );
143 history_menu->Append( ID_LAST_3, _T("No file.") );
144
145 wxMenuBar *menu_bar = new wxMenuBar();
146 menu_bar->Append( file_menu, _T("&File") );
147 menu_bar->Append( edit_menu, _T("&Edit") );
148 menu_bar->Append( history_menu, _T("&History") );
149
150 SetMenuBar( menu_bar );
151 }
152
OnCopy(wxCommandEvent & WXUNUSED (event))153 void MyFrame::OnCopy( wxCommandEvent& WXUNUSED(event) )
154 {
155 }
156
OnCut(wxCommandEvent & WXUNUSED (event))157 void MyFrame::OnCut( wxCommandEvent& WXUNUSED(event) )
158 {
159 }
160
OnPaste(wxCommandEvent & WXUNUSED (event))161 void MyFrame::OnPaste( wxCommandEvent& WXUNUSED(event) )
162 {
163 }
164
OnDelete(wxCommandEvent & WXUNUSED (event))165 void MyFrame::OnDelete( wxCommandEvent& WXUNUSED(event) )
166 {
167 }
168
OnLastFiles(wxCommandEvent & event)169 void MyFrame::OnLastFiles( wxCommandEvent &event )
170 {
171 if (!Discard()) return;
172
173 if (!m_filename.empty())
174 AddToHistory( m_filename );
175
176 size_t index = event.GetId() - ID_LAST_1;
177
178 if( index < m_history.GetCount() )
179 {
180 m_filename = m_history[index];
181
182 m_text->Clear();
183 m_text->LoadFile( m_filename );
184
185 #if wxUSE_STATUSBAR
186 SetStatusText( m_filename );
187 #endif // wxUSE_STATUSBAR
188 }
189 else
190 {
191 wxMessageBox(
192 _T("This entry is empty. It should be filled once you will start opening."),
193 _T("Empty entry"),
194 wxOK | wxICON_INFORMATION,
195 this
196 );
197 }
198 }
199
OnNew(wxCommandEvent & WXUNUSED (event))200 void MyFrame::OnNew( wxCommandEvent& WXUNUSED(event) )
201 {
202 if (!Discard()) return;
203
204 m_text->Clear();
205
206 if (!m_filename.empty())
207 AddToHistory( m_filename );
208
209 m_filename = wxEmptyString;
210
211 #if wxUSE_STATUSBAR
212 SetStatusText( wxEmptyString );
213 #endif // wxUSE_STATUSBAR
214 }
215
OnOpen(wxCommandEvent & WXUNUSED (event))216 void MyFrame::OnOpen( wxCommandEvent& WXUNUSED(event) )
217 {
218 #if wxUSE_FILEDLG
219 if (!Discard()) return;
220
221 wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,
222 _T("Text file (*.txt)|*.txt|Any file (*)|*"),
223 wxFD_OPEN|wxFD_FILE_MUST_EXIST );
224 if (dialog.ShowModal() == wxID_OK)
225 {
226 m_text->Clear();
227
228 #ifdef __WXX11__
229 // requires wxUSE_UNIV_TEXTCTRL to be set to 0
230 #if 0
231 wxFileName fname( dialog.GetPath() );
232 if ((fname.GetExt() == _T("cpp")) ||
233 (fname.GetExt() == _T("c")) ||
234 (fname.GetExt() == _T("h")) ||
235 (fname.GetExt() == _T("cxx")) ||
236 (fname.GetExt() == _T("hxx")))
237 {
238 m_text->SetLanguage( wxSOURCE_LANG_CPP );
239 }
240 else
241 if (fname.GetExt() == _T("py"))
242 {
243 m_text->SetLanguage( wxSOURCE_LANG_PYTHON );
244 }
245 else
246 if ((fname.GetExt() == _T("pl")) ||
247 (fname.GetExt() == _T("pm")))
248 {
249 m_text->SetLanguage( wxSOURCE_LANG_PYTHON );
250 }
251 else
252 {
253 m_text->SetLanguage( wxSOURCE_LANG_NONE );
254 }
255 #endif
256 #endif
257
258 m_filename = dialog.GetPath();
259 m_text->LoadFile( m_filename );
260
261 #if wxUSE_STATUSBAR
262 SetStatusText( m_filename );
263 #endif // wxUSE_STATUSBAR
264 }
265 #endif // wxUSE_FILEDLG
266 }
267
OnSave(wxCommandEvent & WXUNUSED (event))268 void MyFrame::OnSave( wxCommandEvent& WXUNUSED(event) )
269 {
270 Save();
271 }
272
OnSaveAs(wxCommandEvent & WXUNUSED (event))273 void MyFrame::OnSaveAs( wxCommandEvent& WXUNUSED(event) )
274 {
275 #if wxUSE_FILEDLG
276 wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,
277 _T("Text file (*.txt)|*.txt|Any file (*)|*"),
278 wxFD_SAVE|wxFD_OVERWRITE_PROMPT );
279 if (dialog.ShowModal() == wxID_OK)
280 {
281 m_filename = dialog.GetPath();
282 m_text->SaveFile( m_filename );
283
284 #if wxUSE_STATUSBAR
285 SetStatusText( m_filename );
286 #endif // wxUSE_STATUSBAR
287 }
288 #endif // wxUSE_FILEDLG
289 }
290
OnAbout(wxCommandEvent & WXUNUSED (event))291 void MyFrame::OnAbout( wxCommandEvent& WXUNUSED(event) )
292 {
293 wxMessageDialog dialog( this, _T("Welcome to wxEdit\n(C)opyright Robert Roebling"),
294 _T("About wxEdit"), wxOK|wxICON_INFORMATION );
295 dialog.ShowModal();
296 }
297
OnQuit(wxCommandEvent & WXUNUSED (event))298 void MyFrame::OnQuit( wxCommandEvent& WXUNUSED(event) )
299 {
300 Close( true );
301 }
302
Save()303 bool MyFrame::Save()
304 {
305 wxCommandEvent event;
306
307 if (m_filename.empty())
308 OnSaveAs( event );
309 else
310 m_text->SaveFile( m_filename );
311
312 return true;
313 }
314
Discard()315 bool MyFrame::Discard()
316 {
317 if (m_text->IsModified())
318 {
319 wxMessageDialog dialog( this, _T("Text has been\nmodified! Save?"),
320 _T("wxEdit"), wxYES_NO|wxCANCEL|wxICON_EXCLAMATION );
321
322 int ret = dialog.ShowModal();
323
324 if (ret == wxID_CANCEL)
325 return false;
326
327 if (ret == wxID_YES)
328 {
329 if (!Save())
330 return false;
331 }
332 }
333
334 return true;
335 }
336
OnUpdateUI(wxUpdateUIEvent & event)337 void MyFrame::OnUpdateUI( wxUpdateUIEvent &event )
338 {
339 switch (event.GetId())
340 {
341 case ID_COPY:
342 event.Enable( false );
343 break;
344 case ID_CUT:
345 event.Enable( false );
346 break;
347 case ID_PASTE:
348 event.Enable( false );
349 break;
350 case ID_DELETE:
351 #ifdef __WXUNIVERSAL__
352 event.Enable( m_text->HasSelection() );
353 #else
354 {
355 long selFrom, selTo;
356 m_text->GetSelection(& selFrom, & selTo);
357 event.Enable( selFrom != selTo );
358 }
359 #endif
360 break;
361 default:
362 break;
363 }
364 }
365
OnCloseWindow(wxCloseEvent & WXUNUSED (event))366 void MyFrame::OnCloseWindow( wxCloseEvent& WXUNUSED(event) )
367 {
368 // Save changes?
369 if (!Discard()) return;
370
371 // Add current to history
372 if (!m_filename.empty())
373 AddToHistory( m_filename );
374
375 // Write .ini file
376 wxConfig *conf = (wxConfig*) wxConfig::Get();
377
378 int max = HISTORY_ENTRIES;
379 if (m_history.GetCount() < (size_t)max)
380 max = m_history.GetCount();
381
382 conf->Write( _T("/History/Count"), max );
383
384 for (int i = 0; i < max; i++)
385 {
386 wxString tmp;
387 tmp.Printf( _T("/History/File%d"), (int)i );
388
389 conf->Write( tmp, m_history[(size_t)i] );
390 }
391
392 // Flush and delete config
393 delete wxConfig::Set( NULL );
394
395 // Finally destroy window and quit
396 Destroy();
397 }
398
399 //------------------------------------------------------------------------------
400 // MyApp
401 //------------------------------------------------------------------------------
402
IMPLEMENT_APP(MyApp)403 IMPLEMENT_APP(MyApp)
404
405 bool MyApp::OnInit()
406 {
407 SetVendorName(_T("Free world"));
408 SetAppName(_T("wxEdit"));
409
410 MyFrame *frame = new MyFrame( NULL, wxID_ANY, _T("wxEdit"), wxPoint(20,20), wxSize(500,340) );
411 frame->Show( true );
412
413 return true;
414 }
415
OnExit()416 int MyApp::OnExit()
417 {
418 return 0;
419 }
420