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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/docview.cpp
3 // Purpose: Document/view classes
4 // Author: Julian Smart
5 // Modified by: Vadim Zeitlin
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #if wxUSE_DOC_VIEW_ARCHITECTURE
28
29 #include "wx/docview.h"
30
31 #ifndef WX_PRECOMP
32 #include "wx/list.h"
33 #include "wx/string.h"
34 #include "wx/utils.h"
35 #include "wx/app.h"
36 #include "wx/dc.h"
37 #include "wx/dialog.h"
38 #include "wx/menu.h"
39 #include "wx/filedlg.h"
40 #include "wx/intl.h"
41 #include "wx/log.h"
42 #include "wx/msgdlg.h"
43 #include "wx/mdi.h"
44 #include "wx/choicdlg.h"
45 #endif
46
47 #if wxUSE_PRINTING_ARCHITECTURE
48 #include "wx/prntbase.h"
49 #include "wx/printdlg.h"
50 #endif
51
52 #include "wx/confbase.h"
53 #include "wx/filename.h"
54 #include "wx/file.h"
55 #include "wx/ffile.h"
56 #include "wx/cmdproc.h"
57 #include "wx/tokenzr.h"
58 #include "wx/filename.h"
59 #include "wx/stdpaths.h"
60 #include "wx/vector.h"
61 #include "wx/scopedarray.h"
62 #include "wx/scopedptr.h"
63 #include "wx/except.h"
64
65 #if wxUSE_STD_IOSTREAM
66 #include "wx/ioswrap.h"
67 #include "wx/beforestd.h"
68 #if wxUSE_IOSTREAMH
69 #include <fstream.h>
70 #else
71 #include <fstream>
72 #endif
73 #include "wx/afterstd.h"
74 #else
75 #include "wx/wfstream.h"
76 #endif
77
78 typedef wxVector<wxDocTemplate *> wxDocTemplates;
79
80 // ----------------------------------------------------------------------------
81 // wxWidgets macros
82 // ----------------------------------------------------------------------------
83
84 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
85 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
86 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
87 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
88 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
89 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
90
91 #if wxUSE_PRINTING_ARCHITECTURE
92 IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
93 #endif
94
95 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
96
97 // ============================================================================
98 // implementation
99 // ============================================================================
100
101 // ----------------------------------------------------------------------------
102 // private helpers
103 // ----------------------------------------------------------------------------
104
105 namespace
106 {
107
108 wxString FindExtension(const wxString& path)
109 {
110 wxString ext;
111 wxFileName::SplitPath(path, NULL, NULL, &ext);
112
113 // VZ: extensions are considered not case sensitive - is this really a good
114 // idea?
115 return ext.MakeLower();
116 }
117
118 // return the string used for the MRU list items in the menu
119 //
120 // NB: the index n is 0-based, as usual, but the strings start from 1
121 wxString GetMRUEntryLabel(int n, const wxString& path)
122 {
123 // we need to quote '&' characters which are used for mnemonics
124 wxString pathInMenu(path);
125 pathInMenu.Replace("&", "&&");
126
127 return wxString::Format("&%d %s", n + 1, pathInMenu);
128 }
129
130 } // anonymous namespace
131
132 // ----------------------------------------------------------------------------
133 // Definition of wxDocument
134 // ----------------------------------------------------------------------------
135
136 wxDocument::wxDocument(wxDocument *parent)
137 {
138 m_documentModified = false;
139 m_documentParent = parent;
140 m_documentTemplate = NULL;
141 m_commandProcessor = NULL;
142 m_savedYet = false;
143 }
144
145 bool wxDocument::DeleteContents()
146 {
147 return true;
148 }
149
150 wxDocument::~wxDocument()
151 {
152 DeleteContents();
153
154 delete m_commandProcessor;
155
156 if (GetDocumentManager())
157 GetDocumentManager()->RemoveDocument(this);
158
159 // Not safe to do here, since it'll invoke virtual view functions
160 // expecting to see valid derived objects: and by the time we get here,
161 // we've called destructors higher up.
162 //DeleteAllViews();
163 }
164
165 bool wxDocument::Close()
166 {
167 if ( !OnSaveModified() )
168 return false;
169
170 return OnCloseDocument();
171 }
172
173 bool wxDocument::OnCloseDocument()
174 {
175 // Tell all views that we're about to close
176 NotifyClosing();
177 DeleteContents();
178 Modify(false);
179 return true;
180 }
181
182 // Note that this implicitly deletes the document when the last view is
183 // deleted.
184 bool wxDocument::DeleteAllViews()
185 {
186 wxDocManager* manager = GetDocumentManager();
187
188 // first check if all views agree to be closed
189 const wxList::iterator end = m_documentViews.end();
190 for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
191 {
192 wxView *view = (wxView *)*i;
193 if ( !view->Close() )
194 return false;
195 }
196
197 // all views agreed to close, now do close them
198 if ( m_documentViews.empty() )
199 {
200 // normally the document would be implicitly deleted when the last view
201 // is, but if don't have any views, do it here instead
202 if ( manager && manager->GetDocuments().Member(this) )
203 delete this;
204 }
205 else // have views
206 {
207 // as we delete elements we iterate over, don't use the usual "from
208 // begin to end" loop
209 for ( ;; )
210 {
211 wxView *view = (wxView *)*m_documentViews.begin();
212
213 bool isLastOne = m_documentViews.size() == 1;
214
215 // this always deletes the node implicitly and if this is the last
216 // view also deletes this object itself (also implicitly, great),
217 // so we can't test for m_documentViews.empty() after calling this!
218 delete view;
219
220 if ( isLastOne )
221 break;
222 }
223 }
224
225 return true;
226 }
227
228 wxView *wxDocument::GetFirstView() const
229 {
230 if ( m_documentViews.empty() )
231 return NULL;
232
233 return static_cast<wxView *>(m_documentViews.GetFirst()->GetData());
234 }
235
236 wxDocManager *wxDocument::GetDocumentManager() const
237 {
238 return m_documentTemplate ? m_documentTemplate->GetDocumentManager() : NULL;
239 }
240
241 bool wxDocument::OnNewDocument()
242 {
243 // notice that there is no need to neither reset nor even check the
244 // modified flag here as the document itself is a new object (this is only
245 // called from CreateDocument()) and so it shouldn't be saved anyhow even
246 // if it is modified -- this could happen if the user code creates
247 // documents pre-filled with some user-entered (and which hence must not be
248 // lost) information
249
250 SetDocumentSaved(false);
251
252 const wxString name = GetDocumentManager()->MakeNewDocumentName();
253 SetTitle(name);
254 SetFilename(name, true);
255
256 return true;
257 }
258
259 bool wxDocument::Save()
260 {
261 if ( AlreadySaved() )
262 return true;
263
264 if ( m_documentFile.empty() || !m_savedYet )
265 return SaveAs();
266
267 return OnSaveDocument(m_documentFile);
268 }
269
270 bool wxDocument::SaveAs()
271 {
272 wxDocTemplate *docTemplate = GetDocumentTemplate();
273 if (!docTemplate)
274 return false;
275
276 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
277 wxString filter = docTemplate->GetDescription() + wxT(" (") +
278 docTemplate->GetFileFilter() + wxT(")|") +
279 docTemplate->GetFileFilter();
280
281 // Now see if there are some other template with identical view and document
282 // classes, whose filters may also be used.
283 if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
284 {
285 wxList::compatibility_iterator
286 node = docTemplate->GetDocumentManager()->GetTemplates().GetFirst();
287 while (node)
288 {
289 wxDocTemplate *t = (wxDocTemplate*) node->GetData();
290
291 if (t->IsVisible() && t != docTemplate &&
292 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
293 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
294 {
295 // add a '|' to separate this filter from the previous one
296 if ( !filter.empty() )
297 filter << wxT('|');
298
299 filter << t->GetDescription()
300 << wxT(" (") << t->GetFileFilter() << wxT(") |")
301 << t->GetFileFilter();
302 }
303
304 node = node->GetNext();
305 }
306 }
307 #else
308 wxString filter = docTemplate->GetFileFilter() ;
309 #endif
310
311 wxString defaultDir = docTemplate->GetDirectory();
312 if ( defaultDir.empty() )
313 {
314 defaultDir = wxPathOnly(GetFilename());
315 if ( defaultDir.empty() )
316 defaultDir = GetDocumentManager()->GetLastDirectory();
317 }
318
319 wxString fileName = wxFileSelector(_("Save As"),
320 defaultDir,
321 wxFileNameFromPath(GetFilename()),
322 docTemplate->GetDefaultExtension(),
323 filter,
324 wxFD_SAVE | wxFD_OVERWRITE_PROMPT,
325 GetDocumentWindow());
326
327 if (fileName.empty())
328 return false; // cancelled by user
329
330 wxString ext;
331 wxFileName::SplitPath(fileName, NULL, NULL, &ext);
332
333 if (ext.empty())
334 {
335 fileName += wxT(".");
336 fileName += docTemplate->GetDefaultExtension();
337 }
338
339 // Files that were not saved correctly are not added to the FileHistory.
340 if (!OnSaveDocument(fileName))
341 return false;
342
343 SetTitle(wxFileNameFromPath(fileName));
344 SetFilename(fileName, true); // will call OnChangeFileName automatically
345
346 // A file that doesn't use the default extension of its document template
347 // cannot be opened via the FileHistory, so we do not add it.
348 if (docTemplate->FileMatchesTemplate(fileName))
349 {
350 GetDocumentManager()->AddFileToHistory(fileName);
351 }
352 //else: the user will probably not be able to open the file again, so we
353 // could warn about the wrong file-extension here
354
355 return true;
356 }
357
358 bool wxDocument::OnSaveDocument(const wxString& file)
359 {
360 if ( !file )
361 return false;
362
363 if ( !DoSaveDocument(file) )
364 return false;
365
366 Modify(false);
367 SetFilename(file);
368 SetDocumentSaved(true);
369 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
370 wxFileName fn(file) ;
371 fn.MacSetDefaultTypeAndCreator() ;
372 #endif
373 return true;
374 }
375
376 bool wxDocument::OnOpenDocument(const wxString& file)
377 {
378 // notice that there is no need to check the modified flag here for the
379 // reasons explained in OnNewDocument()
380
381 if ( !DoOpenDocument(file) )
382 return false;
383
384 SetFilename(file, true);
385
386 // stretching the logic a little this does make sense because the document
387 // had been saved into the file we just loaded it from, it just could have
388 // happened during a previous program execution, it's just that the name of
389 // this method is a bit unfortunate, it should probably have been called
390 // HasAssociatedFileName()
391 SetDocumentSaved(true);
392
393 UpdateAllViews();
394
395 return true;
396 }
397
398 #if wxUSE_STD_IOSTREAM
399 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
400 #else
401 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
402 #endif
403 {
404 return stream;
405 }
406
407 #if wxUSE_STD_IOSTREAM
408 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
409 #else
410 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
411 #endif
412 {
413 return stream;
414 }
415
416 bool wxDocument::Revert()
417 {
418 return false;
419 }
420
421
422 // Get title, or filename if no title, else unnamed
423 #if WXWIN_COMPATIBILITY_2_8
424 bool wxDocument::GetPrintableName(wxString& buf) const
425 {
426 // this function can not only be overridden by the user code but also
427 // called by it so we need to ensure that we return the same thing as
428 // GetUserReadableName() but we can't call it because this would result in
429 // an infinite recursion, hence we use the helper DoGetUserReadableName()
430 buf = DoGetUserReadableName();
431
432 return true;
433 }
434 #endif // WXWIN_COMPATIBILITY_2_8
435
436 wxString wxDocument::GetUserReadableName() const
437 {
438 #if WXWIN_COMPATIBILITY_2_8
439 // we need to call the old virtual function to ensure that the overridden
440 // version of it is still called
441 wxString name;
442 if ( GetPrintableName(name) )
443 return name;
444 #endif // WXWIN_COMPATIBILITY_2_8
445
446 return DoGetUserReadableName();
447 }
448
449 wxString wxDocument::DoGetUserReadableName() const
450 {
451 if ( !m_documentTitle.empty() )
452 return m_documentTitle;
453
454 if ( !m_documentFile.empty() )
455 return wxFileNameFromPath(m_documentFile);
456
457 return _("unnamed");
458 }
459
460 wxWindow *wxDocument::GetDocumentWindow() const
461 {
462 wxView * const view = GetFirstView();
463
464 return view ? view->GetFrame() : wxTheApp->GetTopWindow();
465 }
466
467 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
468 {
469 return new wxCommandProcessor;
470 }
471
472 // true if safe to close
473 bool wxDocument::OnSaveModified()
474 {
475 if ( IsModified() )
476 {
477 switch ( wxMessageBox
478 (
479 wxString::Format
480 (
481 _("Do you want to save changes to %s?"),
482 GetUserReadableName()
483 ),
484 wxTheApp->GetAppDisplayName(),
485 wxYES_NO | wxCANCEL | wxICON_QUESTION | wxCENTRE
486 ) )
487 {
488 case wxNO:
489 Modify(false);
490 break;
491
492 case wxYES:
493 return Save();
494
495 case wxCANCEL:
496 return false;
497 }
498 }
499
500 return true;
501 }
502
503 bool wxDocument::Draw(wxDC& WXUNUSED(context))
504 {
505 return true;
506 }
507
508 bool wxDocument::AddView(wxView *view)
509 {
510 if ( !m_documentViews.Member(view) )
511 {
512 m_documentViews.Append(view);
513 OnChangedViewList();
514 }
515 return true;
516 }
517
518 bool wxDocument::RemoveView(wxView *view)
519 {
520 (void)m_documentViews.DeleteObject(view);
521 OnChangedViewList();
522 return true;
523 }
524
525 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
526 {
527 return GetDocumentTemplate()->CreateView(this, flags) != NULL;
528 }
529
530 // Called after a view is added or removed.
531 // The default implementation deletes the document if
532 // there are no more views.
533 void wxDocument::OnChangedViewList()
534 {
535 if ( m_documentViews.empty() && OnSaveModified() )
536 delete this;
537 }
538
539 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
540 {
541 wxList::compatibility_iterator node = m_documentViews.GetFirst();
542 while (node)
543 {
544 wxView *view = (wxView *)node->GetData();
545 if (view != sender)
546 view->OnUpdate(sender, hint);
547 node = node->GetNext();
548 }
549 }
550
551 void wxDocument::NotifyClosing()
552 {
553 wxList::compatibility_iterator node = m_documentViews.GetFirst();
554 while (node)
555 {
556 wxView *view = (wxView *)node->GetData();
557 view->OnClosingDocument();
558 node = node->GetNext();
559 }
560 }
561
562 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
563 {
564 m_documentFile = filename;
565 OnChangeFilename(notifyViews);
566 }
567
568 void wxDocument::OnChangeFilename(bool notifyViews)
569 {
570 if ( notifyViews )
571 {
572 // Notify the views that the filename has changed
573 wxList::compatibility_iterator node = m_documentViews.GetFirst();
574 while (node)
575 {
576 wxView *view = (wxView *)node->GetData();
577 view->OnChangeFilename();
578 node = node->GetNext();
579 }
580 }
581 }
582
583 bool wxDocument::DoSaveDocument(const wxString& file)
584 {
585 #if wxUSE_STD_IOSTREAM
586 wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
587 if ( !store )
588 #else
589 wxFileOutputStream store(file);
590 if ( store.GetLastError() != wxSTREAM_NO_ERROR )
591 #endif
592 {
593 wxLogError(_("File \"%s\" could not be opened for writing."), file);
594 return false;
595 }
596
597 if (!SaveObject(store))
598 {
599 wxLogError(_("Failed to save document to the file \"%s\"."), file);
600 return false;
601 }
602
603 return true;
604 }
605
606 bool wxDocument::DoOpenDocument(const wxString& file)
607 {
608 #if wxUSE_STD_IOSTREAM
609 wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
610 if ( !store )
611 #else
612 wxFileInputStream store(file);
613 if (store.GetLastError() != wxSTREAM_NO_ERROR || !store.IsOk())
614 #endif
615 {
616 wxLogError(_("File \"%s\" could not be opened for reading."), file);
617 return false;
618 }
619
620 #if wxUSE_STD_IOSTREAM
621 LoadObject(store);
622 if ( !store )
623 #else
624 int res = LoadObject(store).GetLastError();
625 if ( res != wxSTREAM_NO_ERROR && res != wxSTREAM_EOF )
626 #endif
627 {
628 wxLogError(_("Failed to read document from the file \"%s\"."), file);
629 return false;
630 }
631
632 return true;
633 }
634
635
636 // ----------------------------------------------------------------------------
637 // Document view
638 // ----------------------------------------------------------------------------
639
640 wxView::wxView()
641 {
642 m_viewDocument = NULL;
643
644 m_viewFrame = NULL;
645
646 m_docChildFrame = NULL;
647 }
648
649 wxView::~wxView()
650 {
651 GetDocumentManager()->ActivateView(this, false);
652
653 // reset our frame view first, before removing it from the document as
654 // SetView(NULL) is a simple call while RemoveView() may result in user
655 // code being executed and this user code can, for example, show a message
656 // box which would result in an activation event for m_docChildFrame and so
657 // could reactivate the view being destroyed -- unless we reset it first
658 if ( m_docChildFrame && m_docChildFrame->GetView() == this )
659 {
660 // prevent it from doing anything with us
661 m_docChildFrame->SetView(NULL);
662
663 // it doesn't make sense to leave the frame alive if its associated
664 // view doesn't exist any more so unconditionally close it as well
665 //
666 // notice that we only get here if m_docChildFrame is non-NULL in the
667 // first place and it will be always NULL if we're deleted because our
668 // frame was closed, so this only catches the case of directly deleting
669 // the view, as it happens if its creation fails in wxDocTemplate::
670 // CreateView() for example
671 m_docChildFrame->GetWindow()->Destroy();
672 }
673
674 if ( m_viewDocument )
675 m_viewDocument->RemoveView(this);
676 }
677
678 void wxView::SetDocChildFrame(wxDocChildFrameAnyBase *docChildFrame)
679 {
680 SetFrame(docChildFrame ? docChildFrame->GetWindow() : NULL);
681 m_docChildFrame = docChildFrame;
682 }
683
684 bool wxView::TryBefore(wxEvent& event)
685 {
686 wxDocument * const doc = GetDocument();
687 return doc && doc->ProcessEventHere(event);
688 }
689
690 void wxView::OnActivateView(bool WXUNUSED(activate),
691 wxView *WXUNUSED(activeView),
692 wxView *WXUNUSED(deactiveView))
693 {
694 }
695
696 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
697 {
698 OnDraw(dc);
699 }
700
701 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
702 {
703 }
704
705 void wxView::OnChangeFilename()
706 {
707 // GetFrame can return wxWindow rather than wxTopLevelWindow due to
708 // generic MDI implementation so use SetLabel rather than SetTitle.
709 // It should cause SetTitle() for top level windows.
710 wxWindow *win = GetFrame();
711 if (!win) return;
712
713 wxDocument *doc = GetDocument();
714 if (!doc) return;
715
716 win->SetLabel(doc->GetUserReadableName());
717 }
718
719 void wxView::SetDocument(wxDocument *doc)
720 {
721 m_viewDocument = doc;
722 if (doc)
723 doc->AddView(this);
724 }
725
726 bool wxView::Close(bool deleteWindow)
727 {
728 return OnClose(deleteWindow);
729 }
730
731 void wxView::Activate(bool activate)
732 {
733 if (GetDocument() && GetDocumentManager())
734 {
735 OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
736 GetDocumentManager()->ActivateView(this, activate);
737 }
738 }
739
740 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
741 {
742 return GetDocument() ? GetDocument()->Close() : true;
743 }
744
745 #if wxUSE_PRINTING_ARCHITECTURE
746 wxPrintout *wxView::OnCreatePrintout()
747 {
748 return new wxDocPrintout(this);
749 }
750 #endif // wxUSE_PRINTING_ARCHITECTURE
751
752 // ----------------------------------------------------------------------------
753 // wxDocTemplate
754 // ----------------------------------------------------------------------------
755
756 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
757 const wxString& descr,
758 const wxString& filter,
759 const wxString& dir,
760 const wxString& ext,
761 const wxString& docTypeName,
762 const wxString& viewTypeName,
763 wxClassInfo *docClassInfo,
764 wxClassInfo *viewClassInfo,
765 long flags)
766 {
767 m_documentManager = manager;
768 m_description = descr;
769 m_directory = dir;
770 m_defaultExt = ext;
771 m_fileFilter = filter;
772 m_flags = flags;
773 m_docTypeName = docTypeName;
774 m_viewTypeName = viewTypeName;
775 m_documentManager->AssociateTemplate(this);
776
777 m_docClassInfo = docClassInfo;
778 m_viewClassInfo = viewClassInfo;
779 }
780
781 wxDocTemplate::~wxDocTemplate()
782 {
783 m_documentManager->DisassociateTemplate(this);
784 }
785
786 // Tries to dynamically construct an object of the right class.
787 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
788 {
789 // InitDocument() is supposed to delete the document object if its
790 // initialization fails so don't use wxScopedPtr<> here: this is fragile
791 // but unavoidable because the default implementation uses CreateView()
792 // which may -- or not -- create a wxView and if it does create it and its
793 // initialization fails then the view destructor will delete the document
794 // (via RemoveView()) and as we can't distinguish between the two cases we
795 // just have to assume that it always deletes it in case of failure
796 wxDocument * const doc = DoCreateDocument();
797
798 return doc && InitDocument(doc, path, flags) ? doc : NULL;
799 }
800
801 bool
802 wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
803 {
804 doc->SetFilename(path);
805 doc->SetDocumentTemplate(this);
806 GetDocumentManager()->AddDocument(doc);
807 doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
808
809 if (doc->OnCreate(path, flags))
810 return true;
811
812 if (GetDocumentManager()->GetDocuments().Member(doc))
813 doc->DeleteAllViews();
814 return false;
815 }
816
817 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
818 {
819 wxScopedPtr<wxView> view(DoCreateView());
820 if ( !view )
821 return NULL;
822
823 view->SetDocument(doc);
824 if ( !view->OnCreate(doc, flags) )
825 return NULL;
826
827 return view.release();
828 }
829
830 // The default (very primitive) format detection: check is the extension is
831 // that of the template
832 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
833 {
834 wxStringTokenizer parser (GetFileFilter(), wxT(";"));
835 wxString anything = wxT ("*");
836 while (parser.HasMoreTokens())
837 {
838 wxString filter = parser.GetNextToken();
839 wxString filterExt = FindExtension (filter);
840 if ( filter.IsSameAs (anything) ||
841 filterExt.IsSameAs (anything) ||
842 filterExt.IsSameAs (FindExtension (path)) )
843 return true;
844 }
845 return GetDefaultExtension().IsSameAs(FindExtension(path));
846 }
847
848 wxDocument *wxDocTemplate::DoCreateDocument()
849 {
850 if (!m_docClassInfo)
851 return NULL;
852
853 return static_cast<wxDocument *>(m_docClassInfo->CreateObject());
854 }
855
856 wxView *wxDocTemplate::DoCreateView()
857 {
858 if (!m_viewClassInfo)
859 return NULL;
860
861 return static_cast<wxView *>(m_viewClassInfo->CreateObject());
862 }
863
864 // ----------------------------------------------------------------------------
865 // wxDocManager
866 // ----------------------------------------------------------------------------
867
868 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
869 EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
870 EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
871 EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
872 EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
873 EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
874 EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
875 EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
876 EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
877 EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
878
879 EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
880 EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateDisableIfNoDoc)
881 EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateDisableIfNoDoc)
882 EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateDisableIfNoDoc)
883 EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
884 EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
885 EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateDisableIfNoDoc)
886 EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
887 EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
888
889 #if wxUSE_PRINTING_ARCHITECTURE
890 EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
891 EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
892
893 EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdateDisableIfNoDoc)
894 EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdateDisableIfNoDoc)
895 #endif
896 END_EVENT_TABLE()
897
898 wxDocManager* wxDocManager::sm_docManager = NULL;
899
900 wxDocManager::wxDocManager(long WXUNUSED(flags), bool initialize)
901 {
902 wxASSERT_MSG( !sm_docManager, "multiple wxDocManagers not allowed" );
903
904 sm_docManager = this;
905
906 m_defaultDocumentNameCounter = 1;
907 m_currentView = NULL;
908 m_maxDocsOpen = INT_MAX;
909 m_fileHistory = NULL;
910 if ( initialize )
911 Initialize();
912 }
913
914 wxDocManager::~wxDocManager()
915 {
916 Clear();
917 delete m_fileHistory;
918 sm_docManager = NULL;
919 }
920
921 // closes the specified document
922 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
923 {
924 if ( !doc->Close() && !force )
925 return false;
926
927 // Implicitly deletes the document when
928 // the last view is deleted
929 doc->DeleteAllViews();
930
931 // Check we're really deleted
932 if (m_docs.Member(doc))
933 delete doc;
934
935 return true;
936 }
937
938 bool wxDocManager::CloseDocuments(bool force)
939 {
940 wxList::compatibility_iterator node = m_docs.GetFirst();
941 while (node)
942 {
943 wxDocument *doc = (wxDocument *)node->GetData();
944 wxList::compatibility_iterator next = node->GetNext();
945
946 if (!CloseDocument(doc, force))
947 return false;
948
949 // This assumes that documents are not connected in
950 // any way, i.e. deleting one document does NOT
951 // delete another.
952 node = next;
953 }
954 return true;
955 }
956
957 bool wxDocManager::Clear(bool force)
958 {
959 if (!CloseDocuments(force))
960 return false;
961
962 m_currentView = NULL;
963
964 wxList::compatibility_iterator node = m_templates.GetFirst();
965 while (node)
966 {
967 wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
968 wxList::compatibility_iterator next = node->GetNext();
969 delete templ;
970 node = next;
971 }
972 return true;
973 }
974
975 bool wxDocManager::Initialize()
976 {
977 m_fileHistory = OnCreateFileHistory();
978 return true;
979 }
980
981 wxString wxDocManager::GetLastDirectory() const
982 {
983 // if we haven't determined the last used directory yet, do it now
984 if ( m_lastDirectory.empty() )
985 {
986 // we're going to modify m_lastDirectory in this const method, so do it
987 // via non-const self pointer instead of const this one
988 wxDocManager * const self = const_cast<wxDocManager *>(this);
989
990 // first try to reuse the directory of the most recently opened file:
991 // this ensures that if the user opens a file, closes the program and
992 // runs it again the "Open file" dialog will open in the directory of
993 // the last file he used
994 wxString lastOpened = GetHistoryFile(0);
995 if ( !lastOpened.empty() )
996 {
997 const wxFileName fn(lastOpened);
998 if ( fn.DirExists() )
999 {
1000 self->m_lastDirectory = fn.GetPath();
1001 }
1002 //else: should we try the next one?
1003 }
1004
1005 // if we don't have any files in the history (yet?), use the
1006 // system-dependent default location for the document files
1007 if ( m_lastDirectory.empty() )
1008 {
1009 self->m_lastDirectory = wxStandardPaths::Get().GetAppDocumentsDir();
1010 }
1011 }
1012
1013 return m_lastDirectory;
1014 }
1015
1016 wxFileHistory *wxDocManager::OnCreateFileHistory()
1017 {
1018 return new wxFileHistory;
1019 }
1020
1021 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
1022 {
1023 wxDocument *doc = GetCurrentDocument();
1024 if (!doc)
1025 return;
1026 if (doc->Close())
1027 {
1028 doc->DeleteAllViews();
1029 if (m_docs.Member(doc))
1030 delete doc;
1031 }
1032 }
1033
1034 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
1035 {
1036 CloseDocuments(false);
1037 }
1038
1039 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
1040 {
1041 CreateNewDocument();
1042 }
1043
1044 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
1045 {
1046 if ( !CreateDocument("") )
1047 {
1048 OnOpenFileFailure();
1049 }
1050 }
1051
1052 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
1053 {
1054 wxDocument *doc = GetCurrentDocument();
1055 if (!doc)
1056 return;
1057 doc->Revert();
1058 }
1059
1060 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
1061 {
1062 wxDocument *doc = GetCurrentDocument();
1063 if (!doc)
1064 return;
1065 doc->Save();
1066 }
1067
1068 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1069 {
1070 wxDocument *doc = GetCurrentDocument();
1071 if (!doc)
1072 return;
1073 doc->SaveAs();
1074 }
1075
1076 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1077 {
1078 #if wxUSE_PRINTING_ARCHITECTURE
1079 wxView *view = GetActiveView();
1080 if (!view)
1081 return;
1082
1083 wxPrintout *printout = view->OnCreatePrintout();
1084 if (printout)
1085 {
1086 wxPrinter printer;
1087 printer.Print(view->GetFrame(), printout, true);
1088
1089 delete printout;
1090 }
1091 #endif // wxUSE_PRINTING_ARCHITECTURE
1092 }
1093
1094 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1095 {
1096 #if wxUSE_PRINTING_ARCHITECTURE
1097 wxView *view = GetActiveView();
1098 if (!view)
1099 return;
1100
1101 wxPrintout *printout = view->OnCreatePrintout();
1102 if (printout)
1103 {
1104 // Pass two printout objects: for preview, and possible printing.
1105 wxPrintPreviewBase *
1106 preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1107 if ( !preview->Ok() )
1108 {
1109 delete preview;
1110 wxLogError(_("Print preview creation failed."));
1111 return;
1112 }
1113
1114 wxPreviewFrame *
1115 frame = new wxPreviewFrame(preview, wxTheApp->GetTopWindow(),
1116 _("Print Preview"));
1117 frame->Centre(wxBOTH);
1118 frame->Initialize();
1119 frame->Show(true);
1120 }
1121 #endif // wxUSE_PRINTING_ARCHITECTURE
1122 }
1123
1124 void wxDocManager::OnUndo(wxCommandEvent& event)
1125 {
1126 wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1127 if ( !cmdproc )
1128 {
1129 event.Skip();
1130 return;
1131 }
1132
1133 cmdproc->Undo();
1134 }
1135
1136 void wxDocManager::OnRedo(wxCommandEvent& event)
1137 {
1138 wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1139 if ( !cmdproc )
1140 {
1141 event.Skip();
1142 return;
1143 }
1144
1145 cmdproc->Redo();
1146 }
1147
1148 // Handlers for UI update commands
1149
1150 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1151 {
1152 // CreateDocument() (which is called from OnFileOpen) may succeed
1153 // only when there is at least a template:
1154 event.Enable( GetTemplates().GetCount()>0 );
1155 }
1156
1157 void wxDocManager::OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event)
1158 {
1159 event.Enable( GetCurrentDocument() != NULL );
1160 }
1161
1162 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1163 {
1164 // CreateDocument() (which is called from OnFileNew) may succeed
1165 // only when there is at least a template:
1166 event.Enable( GetTemplates().GetCount()>0 );
1167 }
1168
1169 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1170 {
1171 wxDocument * const doc = GetCurrentDocument();
1172 event.Enable( doc && !doc->AlreadySaved() );
1173 }
1174
1175 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1176 {
1177 wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1178 if ( !cmdproc )
1179 {
1180 event.Enable(false);
1181 return;
1182 }
1183
1184 event.Enable(cmdproc->CanUndo());
1185 cmdproc->SetMenuStrings();
1186 }
1187
1188 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1189 {
1190 wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1191 if ( !cmdproc )
1192 {
1193 event.Enable(false);
1194 return;
1195 }
1196
1197 event.Enable(cmdproc->CanRedo());
1198 cmdproc->SetMenuStrings();
1199 }
1200
1201 wxView *wxDocManager::GetActiveView() const
1202 {
1203 wxView *view = GetCurrentView();
1204
1205 if ( !view && !m_docs.empty() )
1206 {
1207 // if we have exactly one document, consider its view to be the current
1208 // one
1209 //
1210 // VZ: I'm not exactly sure why is this needed but this is how this
1211 // code used to behave before the bug #9518 was fixed and it seems
1212 // safer to preserve the old logic
1213 wxList::compatibility_iterator node = m_docs.GetFirst();
1214 if ( !node->GetNext() )
1215 {
1216 wxDocument *doc = static_cast<wxDocument *>(node->GetData());
1217 view = doc->GetFirstView();
1218 }
1219 //else: we have more than one document
1220 }
1221
1222 return view;
1223 }
1224
1225 bool wxDocManager::TryBefore(wxEvent& event)
1226 {
1227 wxView * const view = GetActiveView();
1228 return view && view->ProcessEventHere(event);
1229 }
1230
1231 namespace
1232 {
1233
1234 // helper function: return only the visible templates
1235 wxDocTemplates GetVisibleTemplates(const wxList& allTemplates)
1236 {
1237 // select only the visible templates
1238 const size_t totalNumTemplates = allTemplates.GetCount();
1239 wxDocTemplates templates;
1240 if ( totalNumTemplates )
1241 {
1242 templates.reserve(totalNumTemplates);
1243
1244 for ( wxList::const_iterator i = allTemplates.begin(),
1245 end = allTemplates.end();
1246 i != end;
1247 ++i )
1248 {
1249 wxDocTemplate * const temp = (wxDocTemplate *)*i;
1250 if ( temp->IsVisible() )
1251 templates.push_back(temp);
1252 }
1253 }
1254
1255 return templates;
1256 }
1257
1258 } // anonymous namespace
1259
1260 wxDocument *wxDocManager::CreateDocument(const wxString& pathOrig, long flags)
1261 {
1262 // this ought to be const but SelectDocumentType/Path() are not
1263 // const-correct and can't be changed as, being virtual, this risks
1264 // breaking user code overriding them
1265 wxDocTemplates templates(GetVisibleTemplates(m_templates));
1266 const size_t numTemplates = templates.size();
1267 if ( !numTemplates )
1268 {
1269 // no templates can be used, can't create document
1270 return NULL;
1271 }
1272
1273
1274 // normally user should select the template to use but wxDOC_SILENT flag we
1275 // choose one ourselves
1276 wxString path = pathOrig; // may be modified below
1277 wxDocTemplate *temp;
1278 if ( flags & wxDOC_SILENT )
1279 {
1280 wxASSERT_MSG( !path.empty(),
1281 "using empty path with wxDOC_SILENT doesn't make sense" );
1282
1283 temp = FindTemplateForPath(path);
1284 if ( !temp )
1285 {
1286 wxLogWarning(_("The format of file '%s' couldn't be determined."),
1287 path);
1288 }
1289 }
1290 else // not silent, ask the user
1291 {
1292 // for the new file we need just the template, for an existing one we
1293 // need the template and the path, unless it's already specified
1294 if ( (flags & wxDOC_NEW) || !path.empty() )
1295 temp = SelectDocumentType(&templates[0], numTemplates);
1296 else
1297 temp = SelectDocumentPath(&templates[0], numTemplates, path, flags);
1298 }
1299
1300 if ( !temp )
1301 return NULL;
1302
1303 // check whether the document with this path is already opened
1304 if ( !path.empty() )
1305 {
1306 const wxFileName fn(path);
1307 for ( wxList::const_iterator i = m_docs.begin(); i != m_docs.end(); ++i )
1308 {
1309 wxDocument * const doc = (wxDocument*)*i;
1310
1311 if ( fn == doc->GetFilename() )
1312 {
1313 // file already open, just activate it and return
1314 if ( doc->GetFirstView() )
1315 {
1316 ActivateView(doc->GetFirstView());
1317 if ( doc->GetDocumentWindow() )
1318 doc->GetDocumentWindow()->SetFocus();
1319 return doc;
1320 }
1321 }
1322 }
1323 }
1324
1325
1326 // no, we need to create a new document
1327
1328
1329 // if we've reached the max number of docs, close the first one.
1330 if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1331 {
1332 if ( !CloseDocument((wxDocument *)GetDocuments().GetFirst()->GetData()) )
1333 {
1334 // can't open the new document if closing the old one failed
1335 return NULL;
1336 }
1337 }
1338
1339
1340 // do create and initialize the new document finally
1341 wxDocument * const docNew = temp->CreateDocument(path, flags);
1342 if ( !docNew )
1343 return NULL;
1344
1345 docNew->SetDocumentName(temp->GetDocumentName());
1346 docNew->SetDocumentTemplate(temp);
1347
1348 wxTRY
1349 {
1350 // call the appropriate function depending on whether we're creating a
1351 // new file or opening an existing one
1352 if ( !(flags & wxDOC_NEW ? docNew->OnNewDocument()
1353 : docNew->OnOpenDocument(path)) )
1354 {
1355 docNew->DeleteAllViews();
1356 return NULL;
1357 }
1358 }
1359 wxCATCH_ALL( docNew->DeleteAllViews(); throw; )
1360
1361 // add the successfully opened file to MRU, but only if we're going to be
1362 // able to reopen it successfully later which requires the template for
1363 // this document to be retrievable from the file extension
1364 if ( !(flags & wxDOC_NEW) && temp->FileMatchesTemplate(path) )
1365 AddFileToHistory(path);
1366
1367 return docNew;
1368 }
1369
1370 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1371 {
1372 wxDocTemplates templates(GetVisibleTemplates(m_templates));
1373 const size_t numTemplates = templates.size();
1374
1375 if ( numTemplates == 0 )
1376 return NULL;
1377
1378 wxDocTemplate * const
1379 temp = numTemplates == 1 ? templates[0]
1380 : SelectViewType(&templates[0], numTemplates);
1381
1382 if ( !temp )
1383 return NULL;
1384
1385 wxView *view = temp->CreateView(doc, flags);
1386 if ( view )
1387 view->SetViewName(temp->GetViewName());
1388 return view;
1389 }
1390
1391 // Not yet implemented
1392 void
1393 wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1394 {
1395 }
1396
1397 // Not yet implemented
1398 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1399 {
1400 return false;
1401 }
1402
1403 wxDocument *wxDocManager::GetCurrentDocument() const
1404 {
1405 wxView * const view = GetActiveView();
1406 return view ? view->GetDocument() : NULL;
1407 }
1408
1409 wxCommandProcessor *wxDocManager::GetCurrentCommandProcessor() const
1410 {
1411 wxDocument * const doc = GetCurrentDocument();
1412 return doc ? doc->GetCommandProcessor() : NULL;
1413 }
1414
1415 // Make a default name for a new document
1416 #if WXWIN_COMPATIBILITY_2_8
1417 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1418 {
1419 // we consider that this function can only be overridden by the user code,
1420 // not called by it as it only makes sense to call it internally, so we
1421 // don't bother to return anything from here
1422 return false;
1423 }
1424 #endif // WXWIN_COMPATIBILITY_2_8
1425
1426 wxString wxDocManager::MakeNewDocumentName()
1427 {
1428 wxString name;
1429
1430 #if WXWIN_COMPATIBILITY_2_8
1431 if ( !MakeDefaultName(name) )
1432 #endif // WXWIN_COMPATIBILITY_2_8
1433 {
1434 name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1435 m_defaultDocumentNameCounter++;
1436 }
1437
1438 return name;
1439 }
1440
1441 // Make a frame title (override this to do something different)
1442 // If docName is empty, a document is not currently active.
1443 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1444 {
1445 wxString appName = wxTheApp->GetAppDisplayName();
1446 wxString title;
1447 if (!doc)
1448 title = appName;
1449 else
1450 {
1451 wxString docName = doc->GetUserReadableName();
1452 title = docName + wxString(_(" - ")) + appName;
1453 }
1454 return title;
1455 }
1456
1457
1458 // Not yet implemented
1459 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1460 {
1461 return NULL;
1462 }
1463
1464 // File history management
1465 void wxDocManager::AddFileToHistory(const wxString& file)
1466 {
1467 if (m_fileHistory)
1468 m_fileHistory->AddFileToHistory(file);
1469 }
1470
1471 void wxDocManager::RemoveFileFromHistory(size_t i)
1472 {
1473 if (m_fileHistory)
1474 m_fileHistory->RemoveFileFromHistory(i);
1475 }
1476
1477 wxString wxDocManager::GetHistoryFile(size_t i) const
1478 {
1479 wxString histFile;
1480
1481 if (m_fileHistory)
1482 histFile = m_fileHistory->GetHistoryFile(i);
1483
1484 return histFile;
1485 }
1486
1487 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1488 {
1489 if (m_fileHistory)
1490 m_fileHistory->UseMenu(menu);
1491 }
1492
1493 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1494 {
1495 if (m_fileHistory)
1496 m_fileHistory->RemoveMenu(menu);
1497 }
1498
1499 #if wxUSE_CONFIG
1500 void wxDocManager::FileHistoryLoad(const wxConfigBase& config)
1501 {
1502 if (m_fileHistory)
1503 m_fileHistory->Load(config);
1504 }
1505
1506 void wxDocManager::FileHistorySave(wxConfigBase& config)
1507 {
1508 if (m_fileHistory)
1509 m_fileHistory->Save(config);
1510 }
1511 #endif
1512
1513 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1514 {
1515 if (m_fileHistory)
1516 m_fileHistory->AddFilesToMenu(menu);
1517 }
1518
1519 void wxDocManager::FileHistoryAddFilesToMenu()
1520 {
1521 if (m_fileHistory)
1522 m_fileHistory->AddFilesToMenu();
1523 }
1524
1525 size_t wxDocManager::GetHistoryFilesCount() const
1526 {
1527 return m_fileHistory ? m_fileHistory->GetCount() : 0;
1528 }
1529
1530
1531 // Find out the document template via matching in the document file format
1532 // against that of the template
1533 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1534 {
1535 wxDocTemplate *theTemplate = NULL;
1536
1537 // Find the template which this extension corresponds to
1538 for (size_t i = 0; i < m_templates.GetCount(); i++)
1539 {
1540 wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1541 if ( temp->FileMatchesTemplate(path) )
1542 {
1543 theTemplate = temp;
1544 break;
1545 }
1546 }
1547 return theTemplate;
1548 }
1549
1550 // Prompts user to open a file, using file specs in templates.
1551 // Must extend the file selector dialog or implement own; OR
1552 // match the extension to the template extension.
1553
1554 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1555 int noTemplates,
1556 wxString& path,
1557 long WXUNUSED(flags),
1558 bool WXUNUSED(save))
1559 {
1560 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
1561 wxString descrBuf;
1562
1563 for (int i = 0; i < noTemplates; i++)
1564 {
1565 if (templates[i]->IsVisible())
1566 {
1567 // add a '|' to separate this filter from the previous one
1568 if ( !descrBuf.empty() )
1569 descrBuf << wxT('|');
1570
1571 descrBuf << templates[i]->GetDescription()
1572 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1573 << templates[i]->GetFileFilter();
1574 }
1575 }
1576 #else
1577 wxString descrBuf = wxT("*.*");
1578 wxUnusedVar(noTemplates);
1579 #endif
1580
1581 int FilterIndex = -1;
1582
1583 wxString pathTmp = wxFileSelectorEx(_("Open File"),
1584 GetLastDirectory(),
1585 wxEmptyString,
1586 &FilterIndex,
1587 descrBuf);
1588
1589 wxDocTemplate *theTemplate = NULL;
1590 if (!pathTmp.empty())
1591 {
1592 if (!wxFileExists(pathTmp))
1593 {
1594 wxString msgTitle;
1595 if (!wxTheApp->GetAppDisplayName().empty())
1596 msgTitle = wxTheApp->GetAppDisplayName();
1597 else
1598 msgTitle = wxString(_("File error"));
1599
1600 wxMessageBox(_("Sorry, could not open this file."),
1601 msgTitle,
1602 wxOK | wxICON_EXCLAMATION | wxCENTRE);
1603
1604 path = wxEmptyString;
1605 return NULL;
1606 }
1607
1608 SetLastDirectory(wxPathOnly(pathTmp));
1609
1610 path = pathTmp;
1611
1612 // first choose the template using the extension, if this fails (i.e.
1613 // wxFileSelectorEx() didn't fill it), then use the path
1614 if ( FilterIndex != -1 )
1615 theTemplate = templates[FilterIndex];
1616 if ( !theTemplate )
1617 theTemplate = FindTemplateForPath(path);
1618 if ( !theTemplate )
1619 {
1620 // Since we do not add files with non-default extensions to the
1621 // file history this can only happen if the application changes the
1622 // allowed templates in runtime.
1623 wxMessageBox(_("Sorry, the format for this file is unknown."),
1624 _("Open File"),
1625 wxOK | wxICON_EXCLAMATION | wxCENTRE);
1626 }
1627 }
1628 else
1629 {
1630 path.clear();
1631 }
1632
1633 return theTemplate;
1634 }
1635
1636 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1637 int noTemplates, bool sort)
1638 {
1639 wxArrayString strings;
1640 wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1641 int i;
1642 int n = 0;
1643
1644 for (i = 0; i < noTemplates; i++)
1645 {
1646 if (templates[i]->IsVisible())
1647 {
1648 int j;
1649 bool want = true;
1650 for (j = 0; j < n; j++)
1651 {
1652 //filter out NOT unique documents + view combinations
1653 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1654 templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1655 )
1656 want = false;
1657 }
1658
1659 if ( want )
1660 {
1661 strings.Add(templates[i]->m_description);
1662
1663 data[n] = templates[i];
1664 n ++;
1665 }
1666 }
1667 } // for
1668
1669 if (sort)
1670 {
1671 strings.Sort(); // ascending sort
1672 // Yes, this will be slow, but template lists
1673 // are typically short.
1674 int j;
1675 n = strings.Count();
1676 for (i = 0; i < n; i++)
1677 {
1678 for (j = 0; j < noTemplates; j++)
1679 {
1680 if (strings[i] == templates[j]->m_description)
1681 data[i] = templates[j];
1682 }
1683 }
1684 }
1685
1686 wxDocTemplate *theTemplate;
1687
1688 switch ( n )
1689 {
1690 case 0:
1691 // no visible templates, hence nothing to choose from
1692 theTemplate = NULL;
1693 break;
1694
1695 case 1:
1696 // don't propose the user to choose if he has no choice
1697 theTemplate = data[0];
1698 break;
1699
1700 default:
1701 // propose the user to choose one of several
1702 theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1703 (
1704 _("Select a document template"),
1705 _("Templates"),
1706 strings,
1707 (void **)data.get()
1708 );
1709 }
1710
1711 return theTemplate;
1712 }
1713
1714 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1715 int noTemplates, bool sort)
1716 {
1717 wxArrayString strings;
1718 wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1719 int i;
1720 int n = 0;
1721
1722 for (i = 0; i < noTemplates; i++)
1723 {
1724 wxDocTemplate *templ = templates[i];
1725 if ( templ->IsVisible() && !templ->GetViewName().empty() )
1726 {
1727 int j;
1728 bool want = true;
1729 for (j = 0; j < n; j++)
1730 {
1731 //filter out NOT unique views
1732 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1733 want = false;
1734 }
1735
1736 if ( want )
1737 {
1738 strings.Add(templ->m_viewTypeName);
1739 data[n] = templ;
1740 n ++;
1741 }
1742 }
1743 }
1744
1745 if (sort)
1746 {
1747 strings.Sort(); // ascending sort
1748 // Yes, this will be slow, but template lists
1749 // are typically short.
1750 int j;
1751 n = strings.Count();
1752 for (i = 0; i < n; i++)
1753 {
1754 for (j = 0; j < noTemplates; j++)
1755 {
1756 if (strings[i] == templates[j]->m_viewTypeName)
1757 data[i] = templates[j];
1758 }
1759 }
1760 }
1761
1762 wxDocTemplate *theTemplate;
1763
1764 // the same logic as above
1765 switch ( n )
1766 {
1767 case 0:
1768 theTemplate = NULL;
1769 break;
1770
1771 case 1:
1772 theTemplate = data[0];
1773 break;
1774
1775 default:
1776 theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1777 (
1778 _("Select a document view"),
1779 _("Views"),
1780 strings,
1781 (void **)data.get()
1782 );
1783
1784 }
1785
1786 return theTemplate;
1787 }
1788
1789 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1790 {
1791 if (!m_templates.Member(temp))
1792 m_templates.Append(temp);
1793 }
1794
1795 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1796 {
1797 m_templates.DeleteObject(temp);
1798 }
1799
1800 // Add and remove a document from the manager's list
1801 void wxDocManager::AddDocument(wxDocument *doc)
1802 {
1803 if (!m_docs.Member(doc))
1804 m_docs.Append(doc);
1805 }
1806
1807 void wxDocManager::RemoveDocument(wxDocument *doc)
1808 {
1809 m_docs.DeleteObject(doc);
1810 }
1811
1812 // Views or windows should inform the document manager
1813 // when a view is going in or out of focus
1814 void wxDocManager::ActivateView(wxView *view, bool activate)
1815 {
1816 if ( activate )
1817 {
1818 m_currentView = view;
1819 }
1820 else // deactivate
1821 {
1822 if ( m_currentView == view )
1823 {
1824 // don't keep stale pointer
1825 m_currentView = NULL;
1826 }
1827 }
1828 }
1829
1830 // ----------------------------------------------------------------------------
1831 // wxDocChildFrameAnyBase
1832 // ----------------------------------------------------------------------------
1833
1834 bool wxDocChildFrameAnyBase::CloseView(wxCloseEvent& event)
1835 {
1836 if ( m_childView )
1837 {
1838 if ( event.CanVeto() && !m_childView->Close(false) )
1839 {
1840 event.Veto();
1841 return false;
1842 }
1843
1844 m_childView->Activate(false);
1845
1846 // it is important to reset m_childView frame pointer to NULL before
1847 // deleting it because while normally it is the frame which deletes the
1848 // view when it's closed, the view also closes the frame if it is
1849 // deleted directly not by us as indicated by its doc child frame
1850 // pointer still being set
1851 m_childView->SetDocChildFrame(NULL);
1852 delete m_childView;
1853 m_childView = NULL;
1854 }
1855
1856 m_childDocument = NULL;
1857
1858 return true;
1859 }
1860
1861 // ----------------------------------------------------------------------------
1862 // Default parent frame
1863 // ----------------------------------------------------------------------------
1864
1865 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1866 EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1867 EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1868 EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1869 END_EVENT_TABLE()
1870
1871 wxDocParentFrame::wxDocParentFrame()
1872 {
1873 m_docManager = NULL;
1874 }
1875
1876 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1877 wxFrame *frame,
1878 wxWindowID id,
1879 const wxString& title,
1880 const wxPoint& pos,
1881 const wxSize& size,
1882 long style,
1883 const wxString& name)
1884 : wxFrame(frame, id, title, pos, size, style, name)
1885 {
1886 m_docManager = manager;
1887 }
1888
1889 bool wxDocParentFrame::Create(wxDocManager *manager,
1890 wxFrame *frame,
1891 wxWindowID id,
1892 const wxString& title,
1893 const wxPoint& pos,
1894 const wxSize& size,
1895 long style,
1896 const wxString& name)
1897 {
1898 m_docManager = manager;
1899 return base_type::Create(frame, id, title, pos, size, style, name);
1900 }
1901
1902 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1903 {
1904 Close();
1905 }
1906
1907 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1908 {
1909 int n = event.GetId() - wxID_FILE1; // the index in MRU list
1910 wxString filename(m_docManager->GetHistoryFile(n));
1911 if ( filename.empty() )
1912 return;
1913
1914 wxString errMsg; // must contain exactly one "%s" if non-empty
1915 if ( wxFile::Exists(filename) )
1916 {
1917 // try to open it
1918 if ( m_docManager->CreateDocument(filename, wxDOC_SILENT) )
1919 return;
1920
1921 errMsg = _("The file '%s' couldn't be opened.");
1922 }
1923 else // file doesn't exist
1924 {
1925 errMsg = _("The file '%s' doesn't exist and couldn't be opened.");
1926 }
1927
1928
1929 wxASSERT_MSG( !errMsg.empty(), "should have an error message" );
1930
1931 // remove the file which we can't open from the MRU list
1932 m_docManager->RemoveFileFromHistory(n);
1933
1934 // and tell the user about it
1935 wxLogError(errMsg + '\n' +
1936 _("It has been removed from the most recently used files list."),
1937 filename);
1938 }
1939
1940 // Extend event processing to search the view's event table
1941 bool wxDocParentFrame::TryBefore(wxEvent& event)
1942 {
1943 if ( m_docManager && m_docManager->ProcessEventHere(event) )
1944 return true;
1945
1946 return wxFrame::TryBefore(event);
1947 }
1948
1949 // Define the behaviour for the frame closing
1950 // - must delete all frames except for the main one.
1951 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1952 {
1953 if (m_docManager->Clear(!event.CanVeto()))
1954 {
1955 Destroy();
1956 }
1957 else
1958 event.Veto();
1959 }
1960
1961 #if wxUSE_PRINTING_ARCHITECTURE
1962
1963 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1964 : wxPrintout(title)
1965 {
1966 m_printoutView = view;
1967 }
1968
1969 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1970 {
1971 wxDC *dc = GetDC();
1972
1973 // Get the logical pixels per inch of screen and printer
1974 int ppiScreenX, ppiScreenY;
1975 GetPPIScreen(&ppiScreenX, &ppiScreenY);
1976 wxUnusedVar(ppiScreenY);
1977 int ppiPrinterX, ppiPrinterY;
1978 GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1979 wxUnusedVar(ppiPrinterY);
1980
1981 // This scales the DC so that the printout roughly represents the
1982 // the screen scaling. The text point size _should_ be the right size
1983 // but in fact is too small for some reason. This is a detail that will
1984 // need to be addressed at some point but can be fudged for the
1985 // moment.
1986 float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1987
1988 // Now we have to check in case our real page size is reduced
1989 // (e.g. because we're drawing to a print preview memory DC)
1990 int pageWidth, pageHeight;
1991 int w, h;
1992 dc->GetSize(&w, &h);
1993 GetPageSizePixels(&pageWidth, &pageHeight);
1994 wxUnusedVar(pageHeight);
1995
1996 // If printer pageWidth == current DC width, then this doesn't
1997 // change. But w might be the preview bitmap width, so scale down.
1998 float overallScale = scale * (float)(w/(float)pageWidth);
1999 dc->SetUserScale(overallScale, overallScale);
2000
2001 if (m_printoutView)
2002 {
2003 m_printoutView->OnDraw(dc);
2004 }
2005 return true;
2006 }
2007
2008 bool wxDocPrintout::HasPage(int pageNum)
2009 {
2010 return (pageNum == 1);
2011 }
2012
2013 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2014 {
2015 if (!wxPrintout::OnBeginDocument(startPage, endPage))
2016 return false;
2017
2018 return true;
2019 }
2020
2021 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage,
2022 int *selPageFrom, int *selPageTo)
2023 {
2024 *minPage = 1;
2025 *maxPage = 1;
2026 *selPageFrom = 1;
2027 *selPageTo = 1;
2028 }
2029
2030 #endif // wxUSE_PRINTING_ARCHITECTURE
2031
2032 // ----------------------------------------------------------------------------
2033 // File history (a.k.a. MRU, most recently used, files list)
2034 // ----------------------------------------------------------------------------
2035
2036 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2037 {
2038 m_fileMaxFiles = maxFiles;
2039 m_idBase = idBase;
2040 }
2041
2042 void wxFileHistory::AddFileToHistory(const wxString& file)
2043 {
2044 // check if we don't already have this file
2045 const wxFileName fnNew(file);
2046 size_t i,
2047 numFiles = m_fileHistory.size();
2048 for ( i = 0; i < numFiles; i++ )
2049 {
2050 if ( fnNew == m_fileHistory[i] )
2051 {
2052 // we do have it, move it to the top of the history
2053 RemoveFileFromHistory(i);
2054 numFiles--;
2055 break;
2056 }
2057 }
2058
2059 // if we already have a full history, delete the one at the end
2060 if ( numFiles == m_fileMaxFiles )
2061 {
2062 RemoveFileFromHistory(--numFiles);
2063 }
2064
2065 // add a new menu item to all file menus (they will be updated below)
2066 for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2067 node;
2068 node = node->GetNext() )
2069 {
2070 wxMenu * const menu = (wxMenu *)node->GetData();
2071
2072 if ( !numFiles && menu->GetMenuItemCount() )
2073 menu->AppendSeparator();
2074
2075 // label doesn't matter, it will be set below anyhow, but it can't
2076 // be empty (this is supposed to indicate a stock item)
2077 menu->Append(m_idBase + numFiles, " ");
2078 }
2079
2080 // insert the new file in the beginning of the file history
2081 m_fileHistory.insert(m_fileHistory.begin(), file);
2082 numFiles++;
2083
2084 // update the labels in all menus
2085 for ( i = 0; i < numFiles; i++ )
2086 {
2087 // if in same directory just show the filename; otherwise the full path
2088 const wxFileName fnOld(m_fileHistory[i]);
2089
2090 wxString pathInMenu;
2091 if ( fnOld.GetPath() == fnNew.GetPath() )
2092 {
2093 pathInMenu = fnOld.GetFullName();
2094 }
2095 else // file in different directory
2096 {
2097 // absolute path; could also set relative path
2098 pathInMenu = m_fileHistory[i];
2099 }
2100
2101 for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2102 node;
2103 node = node->GetNext() )
2104 {
2105 wxMenu * const menu = (wxMenu *)node->GetData();
2106
2107 menu->SetLabel(m_idBase + i, GetMRUEntryLabel(i, pathInMenu));
2108 }
2109 }
2110 }
2111
2112 void wxFileHistory::RemoveFileFromHistory(size_t i)
2113 {
2114 size_t numFiles = m_fileHistory.size();
2115 wxCHECK_RET( i < numFiles,
2116 wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2117
2118 // delete the element from the array
2119 m_fileHistory.RemoveAt(i);
2120 numFiles--;
2121
2122 for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2123 node;
2124 node = node->GetNext() )
2125 {
2126 wxMenu * const menu = (wxMenu *) node->GetData();
2127
2128 // shift filenames up
2129 for ( size_t j = i; j < numFiles; j++ )
2130 {
2131 menu->SetLabel(m_idBase + j, GetMRUEntryLabel(j, m_fileHistory[j]));
2132 }
2133
2134 // delete the last menu item which is unused now
2135 const wxWindowID lastItemId = m_idBase + numFiles;
2136 if ( menu->FindItem(lastItemId) )
2137 menu->Delete(lastItemId);
2138
2139 // delete the last separator too if no more files are left
2140 if ( m_fileHistory.empty() )
2141 {
2142 const wxMenuItemList::compatibility_iterator
2143 nodeLast = menu->GetMenuItems().GetLast();
2144 if ( nodeLast )
2145 {
2146 wxMenuItem * const lastMenuItem = nodeLast->GetData();
2147 if ( lastMenuItem->IsSeparator() )
2148 menu->Delete(lastMenuItem);
2149 }
2150 //else: menu is empty somehow
2151 }
2152 }
2153 }
2154
2155 void wxFileHistory::UseMenu(wxMenu *menu)
2156 {
2157 if ( !m_fileMenus.Member(menu) )
2158 m_fileMenus.Append(menu);
2159 }
2160
2161 void wxFileHistory::RemoveMenu(wxMenu *menu)
2162 {
2163 m_fileMenus.DeleteObject(menu);
2164 }
2165
2166 #if wxUSE_CONFIG
2167 void wxFileHistory::Load(const wxConfigBase& config)
2168 {
2169 m_fileHistory.Clear();
2170
2171 wxString buf;
2172 buf.Printf(wxT("file%d"), 1);
2173
2174 wxString historyFile;
2175 while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2176 config.Read(buf, &historyFile) && !historyFile.empty())
2177 {
2178 m_fileHistory.Add(historyFile);
2179
2180 buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2181 historyFile = wxEmptyString;
2182 }
2183
2184 AddFilesToMenu();
2185 }
2186
2187 void wxFileHistory::Save(wxConfigBase& config)
2188 {
2189 size_t i;
2190 for (i = 0; i < m_fileMaxFiles; i++)
2191 {
2192 wxString buf;
2193 buf.Printf(wxT("file%d"), (int)i+1);
2194 if (i < m_fileHistory.GetCount())
2195 config.Write(buf, wxString(m_fileHistory[i]));
2196 else
2197 config.Write(buf, wxEmptyString);
2198 }
2199 }
2200 #endif // wxUSE_CONFIG
2201
2202 void wxFileHistory::AddFilesToMenu()
2203 {
2204 if ( m_fileHistory.empty() )
2205 return;
2206
2207 for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2208 node;
2209 node = node->GetNext() )
2210 {
2211 AddFilesToMenu((wxMenu *) node->GetData());
2212 }
2213 }
2214
2215 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2216 {
2217 if ( m_fileHistory.empty() )
2218 return;
2219
2220 if ( menu->GetMenuItemCount() )
2221 menu->AppendSeparator();
2222
2223 for ( size_t i = 0; i < m_fileHistory.GetCount(); i++ )
2224 {
2225 menu->Append(m_idBase + i, GetMRUEntryLabel(i, m_fileHistory[i]));
2226 }
2227 }
2228
2229 // ----------------------------------------------------------------------------
2230 // Permits compatibility with existing file formats and functions that
2231 // manipulate files directly
2232 // ----------------------------------------------------------------------------
2233
2234 #if wxUSE_STD_IOSTREAM
2235
2236 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2237 {
2238 #if wxUSE_FFILE
2239 wxFFile file(filename, wxT("rb"));
2240 #elif wxUSE_FILE
2241 wxFile file(filename, wxFile::read);
2242 #endif
2243 if ( !file.IsOpened() )
2244 return false;
2245
2246 char buf[4096];
2247
2248 size_t nRead;
2249 do
2250 {
2251 nRead = file.Read(buf, WXSIZEOF(buf));
2252 if ( file.Error() )
2253 return false;
2254
2255 stream.write(buf, nRead);
2256 if ( !stream )
2257 return false;
2258 }
2259 while ( !file.Eof() );
2260
2261 return true;
2262 }
2263
2264 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2265 {
2266 #if wxUSE_FFILE
2267 wxFFile file(filename, wxT("wb"));
2268 #elif wxUSE_FILE
2269 wxFile file(filename, wxFile::write);
2270 #endif
2271 if ( !file.IsOpened() )
2272 return false;
2273
2274 char buf[4096];
2275 do
2276 {
2277 stream.read(buf, WXSIZEOF(buf));
2278 if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2279 {
2280 if ( !file.Write(buf, stream.gcount()) )
2281 return false;
2282 }
2283 }
2284 while ( !stream.eof() );
2285
2286 return true;
2287 }
2288
2289 #else // !wxUSE_STD_IOSTREAM
2290
2291 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2292 {
2293 #if wxUSE_FFILE
2294 wxFFile file(filename, wxT("rb"));
2295 #elif wxUSE_FILE
2296 wxFile file(filename, wxFile::read);
2297 #endif
2298 if ( !file.IsOpened() )
2299 return false;
2300
2301 char buf[4096];
2302
2303 size_t nRead;
2304 do
2305 {
2306 nRead = file.Read(buf, WXSIZEOF(buf));
2307 if ( file.Error() )
2308 return false;
2309
2310 stream.Write(buf, nRead);
2311 if ( !stream )
2312 return false;
2313 }
2314 while ( !file.Eof() );
2315
2316 return true;
2317 }
2318
2319 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2320 {
2321 #if wxUSE_FFILE
2322 wxFFile file(filename, wxT("wb"));
2323 #elif wxUSE_FILE
2324 wxFile file(filename, wxFile::write);
2325 #endif
2326 if ( !file.IsOpened() )
2327 return false;
2328
2329 char buf[4096];
2330 for ( ;; )
2331 {
2332 stream.Read(buf, WXSIZEOF(buf));
2333
2334 const size_t nRead = stream.LastRead();
2335 if ( !nRead )
2336 {
2337 if ( stream.Eof() )
2338 break;
2339
2340 return false;
2341 }
2342
2343 if ( !file.Write(buf, nRead) )
2344 return false;
2345 }
2346
2347 return true;
2348 }
2349
2350 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2351
2352 #endif // wxUSE_DOC_VIEW_ARCHITECTURE