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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: docview.h
3 // Purpose: Doc/View classes
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 01/02/97
7 // RCS-ID: $Id$
8 // Copyright: (c)
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_DOCH__
13 #define _WX_DOCH__
14
15 #if defined(__GNUG__) && !defined(__APPLE__)
16 #pragma interface "docview.h"
17 #endif
18
19 #include "wx/defs.h"
20
21 #if wxUSE_DOC_VIEW_ARCHITECTURE
22
23 #include "wx/list.h"
24 #include "wx/cmndata.h"
25 #include "wx/string.h"
26 #include "wx/frame.h"
27
28 #if wxUSE_PRINTING_ARCHITECTURE
29 #include "wx/print.h"
30 #endif
31
32 class WXDLLEXPORT wxWindow;
33 class WXDLLEXPORT wxDocument;
34 class WXDLLEXPORT wxView;
35 class WXDLLEXPORT wxDocTemplate;
36 class WXDLLEXPORT wxDocManager;
37 class WXDLLEXPORT wxPrintInfo;
38 class WXDLLEXPORT wxCommandProcessor;
39 class WXDLLEXPORT wxFileHistory;
40 class WXDLLEXPORT wxConfigBase;
41
42 #if wxUSE_STD_IOSTREAM
43 #include "wx/ioswrap.h"
44 #else
45 #include "wx/stream.h"
46 #endif
47
48 // Document manager flags
49 enum
50 {
51 wxDOC_SDI = 1,
52 wxDOC_MDI,
53 wxDOC_NEW,
54 wxDOC_SILENT,
55 wxDEFAULT_DOCMAN_FLAGS = wxDOC_SDI
56 };
57
58 // Document template flags
59 enum
60 {
61 wxTEMPLATE_VISIBLE = 1,
62 wxTEMPLATE_INVISIBLE,
63 wxDEFAULT_TEMPLATE_FLAGS = wxTEMPLATE_VISIBLE
64 };
65
66 #define wxMAX_FILE_HISTORY 9
67
68 class WXDLLEXPORT wxDocument : public wxEvtHandler
69 {
70 public:
71 wxDocument(wxDocument *parent = (wxDocument *) NULL);
72 ~wxDocument();
73
74 // accessors
75 void SetFilename(const wxString& filename, bool notifyViews = FALSE);
76 wxString GetFilename() const { return m_documentFile; }
77
78 void SetTitle(const wxString& title) { m_documentTitle = title; };
79 wxString GetTitle() const { return m_documentTitle; }
80
81 void SetDocumentName(const wxString& name) { m_documentTypeName = name; };
82 wxString GetDocumentName() const { return m_documentTypeName; }
83
84 bool GetDocumentSaved() const { return m_savedYet; }
85 void SetDocumentSaved(bool saved = TRUE) { m_savedYet = saved; }
86
87 virtual bool Close();
88 virtual bool Save();
89 virtual bool SaveAs();
90 virtual bool Revert();
91
92 #if wxUSE_STD_IOSTREAM
93 virtual wxSTD ostream& SaveObject(wxSTD ostream& stream);
94 virtual wxSTD istream& LoadObject(wxSTD istream& stream);
95 #else
96 virtual wxOutputStream& SaveObject(wxOutputStream& stream);
97 virtual wxInputStream& LoadObject(wxInputStream& stream);
98 #endif
99
100 // Called by wxWindows
101 virtual bool OnSaveDocument(const wxString& filename);
102 virtual bool OnOpenDocument(const wxString& filename);
103 virtual bool OnNewDocument();
104 virtual bool OnCloseDocument();
105
106 // Prompts for saving if about to close a modified document. Returns TRUE
107 // if ok to close the document (may have saved in the meantime, or set
108 // modified to FALSE)
109 virtual bool OnSaveModified();
110
111 // Called by framework if created automatically by the default document
112 // manager: gives document a chance to initialise and (usually) create a
113 // view
114 virtual bool OnCreate(const wxString& path, long flags);
115
116 // By default, creates a base wxCommandProcessor.
117 virtual wxCommandProcessor *OnCreateCommandProcessor();
118 virtual wxCommandProcessor *GetCommandProcessor() const { return m_commandProcessor; }
119 virtual void SetCommandProcessor(wxCommandProcessor *proc) { m_commandProcessor = proc; }
120
121 // Called after a view is added or removed. The default implementation
122 // deletes the document if this is there are no more views.
123 virtual void OnChangedViewList();
124
125 virtual bool DeleteContents();
126
127 virtual bool Draw(wxDC&);
128 virtual bool IsModified() const { return m_documentModified; }
129 virtual void Modify(bool mod) { m_documentModified = mod; }
130
131 virtual bool AddView(wxView *view);
132 virtual bool RemoveView(wxView *view);
133 wxList& GetViews() const { return (wxList&) m_documentViews; }
134 wxView *GetFirstView() const;
135
136 virtual void UpdateAllViews(wxView *sender = (wxView *) NULL, wxObject *hint = (wxObject *) NULL);
137 virtual void NotifyClosing();
138
139 // Remove all views (because we're closing the document)
140 virtual bool DeleteAllViews();
141
142 // Other stuff
143 virtual wxDocManager *GetDocumentManager() const;
144 virtual wxDocTemplate *GetDocumentTemplate() const { return m_documentTemplate; }
145 virtual void SetDocumentTemplate(wxDocTemplate *temp) { m_documentTemplate = temp; }
146
147 // Get title, or filename if no title, else [unnamed]
148 virtual bool GetPrintableName(wxString& buf) const;
149
150 // Returns a window that can be used as a parent for document-related
151 // dialogs. Override if necessary.
152 virtual wxWindow *GetDocumentWindow() const;
153
154 protected:
155 wxList m_documentViews;
156 wxString m_documentFile;
157 wxString m_documentTitle;
158 wxString m_documentTypeName;
159 wxDocTemplate* m_documentTemplate;
160 bool m_documentModified;
161 wxDocument* m_documentParent;
162 wxCommandProcessor* m_commandProcessor;
163 bool m_savedYet;
164
165 private:
166 DECLARE_ABSTRACT_CLASS(wxDocument)
167 DECLARE_NO_COPY_CLASS(wxDocument)
168 };
169
170 class WXDLLEXPORT wxView: public wxEvtHandler
171 {
172 public:
173 // wxView(wxDocument *doc = (wxDocument *) NULL);
174 wxView();
175 ~wxView();
176
177 wxDocument *GetDocument() const { return m_viewDocument; }
178 virtual void SetDocument(wxDocument *doc);
179
180 wxString GetViewName() const { return m_viewTypeName; }
181 void SetViewName(const wxString& name) { m_viewTypeName = name; };
182
183 wxWindow *GetFrame() const { return m_viewFrame ; }
184 void SetFrame(wxWindow *frame) { m_viewFrame = frame; }
185
186 virtual void OnActivateView(bool activate, wxView *activeView, wxView *deactiveView);
187 virtual void OnDraw(wxDC *dc) = 0;
188 virtual void OnPrint(wxDC *dc, wxObject *info);
189 virtual void OnUpdate(wxView *sender, wxObject *hint = (wxObject *) NULL);
190 virtual void OnClosingDocument() {};
191 virtual void OnChangeFilename();
192
193 // Called by framework if created automatically by the default document
194 // manager class: gives view a chance to initialise
195 virtual bool OnCreate(wxDocument *WXUNUSED(doc), long WXUNUSED(flags)) { return TRUE; };
196
197 // Checks if the view is the last one for the document; if so, asks user
198 // to confirm save data (if modified). If ok, deletes itself and returns
199 // TRUE.
200 virtual bool Close(bool deleteWindow = TRUE);
201
202 // Override to do cleanup/veto close
203 virtual bool OnClose(bool deleteWindow);
204
205 #if WXWIN_COMPATIBILITY
206 // Defeat compiler warning
207 bool OnClose() { return wxEvtHandler::OnClose(); }
208 #endif
209
210 // Extend event processing to search the document's event table
211 virtual bool ProcessEvent(wxEvent& event);
212
213 // A view's window can call this to notify the view it is (in)active.
214 // The function then notifies the document manager.
215 virtual void Activate(bool activate);
216
217 wxDocManager *GetDocumentManager() const
218 { return m_viewDocument->GetDocumentManager(); }
219
220 #if wxUSE_PRINTING_ARCHITECTURE
221 virtual wxPrintout *OnCreatePrintout();
222 #endif
223
224 protected:
225 wxDocument* m_viewDocument;
226 wxString m_viewTypeName;
227 wxWindow* m_viewFrame;
228
229 private:
230 DECLARE_ABSTRACT_CLASS(wxView)
231 DECLARE_NO_COPY_CLASS(wxView)
232 };
233
234 // Represents user interface (and other) properties of documents and views
235 class WXDLLEXPORT wxDocTemplate: public wxObject
236 {
237
238 friend class WXDLLEXPORT wxDocManager;
239
240 public:
241 // Associate document and view types. They're for identifying what view is
242 // associated with what template/document type
243 wxDocTemplate(wxDocManager *manager,
244 const wxString& descr,
245 const wxString& filter,
246 const wxString& dir,
247 const wxString& ext,
248 const wxString& docTypeName,
249 const wxString& viewTypeName,
250 wxClassInfo *docClassInfo = (wxClassInfo *) NULL,
251 wxClassInfo *viewClassInfo = (wxClassInfo *)NULL,
252 long flags = wxDEFAULT_TEMPLATE_FLAGS);
253
254 ~wxDocTemplate();
255
256 // By default, these two member functions dynamically creates document and
257 // view using dynamic instance construction. Override these if you need a
258 // different method of construction.
259 virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
260 virtual wxView *CreateView(wxDocument *doc, long flags = 0);
261
262 wxString GetDefaultExtension() const { return m_defaultExt; };
263 wxString GetDescription() const { return m_description; }
264 wxString GetDirectory() const { return m_directory; };
265 wxDocManager *GetDocumentManager() const { return m_documentManager; }
266 void SetDocumentManager(wxDocManager *manager) { m_documentManager = manager; }
267 wxString GetFileFilter() const { return m_fileFilter; };
268 long GetFlags() const { return m_flags; };
269 virtual wxString GetViewName() const { return m_viewTypeName; }
270 virtual wxString GetDocumentName() const { return m_docTypeName; }
271
272 void SetFileFilter(const wxString& filter) { m_fileFilter = filter; };
273 void SetDirectory(const wxString& dir) { m_directory = dir; };
274 void SetDescription(const wxString& descr) { m_description = descr; };
275 void SetDefaultExtension(const wxString& ext) { m_defaultExt = ext; };
276 void SetFlags(long flags) { m_flags = flags; };
277
278 bool IsVisible() const { return ((m_flags & wxTEMPLATE_VISIBLE) == wxTEMPLATE_VISIBLE); }
279
280 virtual bool FileMatchesTemplate(const wxString& path);
281
282 protected:
283 long m_flags;
284 wxString m_fileFilter;
285 wxString m_directory;
286 wxString m_description;
287 wxString m_defaultExt;
288 wxString m_docTypeName;
289 wxString m_viewTypeName;
290 wxDocManager* m_documentManager;
291
292 // For dynamic creation of appropriate instances.
293 wxClassInfo* m_docClassInfo;
294 wxClassInfo* m_viewClassInfo;
295
296 private:
297 DECLARE_CLASS(wxDocTemplate)
298 DECLARE_NO_COPY_CLASS(wxDocTemplate)
299 };
300
301 // One object of this class may be created in an application, to manage all
302 // the templates and documents.
303 class WXDLLEXPORT wxDocManager: public wxEvtHandler
304 {
305 DECLARE_DYNAMIC_CLASS(wxDocManager)
306
307 public:
308 wxDocManager(long flags = wxDEFAULT_DOCMAN_FLAGS, bool initialize = TRUE);
309 ~wxDocManager();
310
311 virtual bool Initialize();
312
313 // Handlers for common user commands
314 void OnFileClose(wxCommandEvent& event);
315 void OnFileCloseAll(wxCommandEvent& event);
316 void OnFileNew(wxCommandEvent& event);
317 void OnFileOpen(wxCommandEvent& event);
318 void OnFileRevert(wxCommandEvent& event);
319 void OnFileSave(wxCommandEvent& event);
320 void OnFileSaveAs(wxCommandEvent& event);
321 void OnPrint(wxCommandEvent& event);
322 void OnPrintSetup(wxCommandEvent& event);
323 void OnPreview(wxCommandEvent& event);
324 void OnUndo(wxCommandEvent& event);
325 void OnRedo(wxCommandEvent& event);
326
327 // Handlers for UI update commands
328 void OnUpdateFileOpen(wxUpdateUIEvent& event);
329 void OnUpdateFileClose(wxUpdateUIEvent& event);
330 void OnUpdateFileRevert(wxUpdateUIEvent& event);
331 void OnUpdateFileNew(wxUpdateUIEvent& event);
332 void OnUpdateFileSave(wxUpdateUIEvent& event);
333 void OnUpdateFileSaveAs(wxUpdateUIEvent& event);
334 void OnUpdateUndo(wxUpdateUIEvent& event);
335 void OnUpdateRedo(wxUpdateUIEvent& event);
336
337 void OnUpdatePrint(wxUpdateUIEvent& event);
338 void OnUpdatePrintSetup(wxUpdateUIEvent& event);
339 void OnUpdatePreview(wxUpdateUIEvent& event);
340
341 // Extend event processing to search the view's event table
342 virtual bool ProcessEvent(wxEvent& event);
343
344 // called when file format detection didn't work, can be overridden to do
345 // something in this case
346 virtual void OnOpenFileFailure() { }
347
348 virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
349 virtual wxView *CreateView(wxDocument *doc, long flags = 0);
350 virtual void DeleteTemplate(wxDocTemplate *temp, long flags = 0);
351 virtual bool FlushDoc(wxDocument *doc);
352 virtual wxDocTemplate *MatchTemplate(const wxString& path);
353 virtual wxDocTemplate *SelectDocumentPath(wxDocTemplate **templates,
354 int noTemplates, wxString& path, long flags, bool save = FALSE);
355 virtual wxDocTemplate *SelectDocumentType(wxDocTemplate **templates,
356 int noTemplates, bool sort = FALSE);
357 virtual wxDocTemplate *SelectViewType(wxDocTemplate **templates,
358 int noTemplates, bool sort = FALSE);
359 virtual wxDocTemplate *FindTemplateForPath(const wxString& path);
360
361 void AssociateTemplate(wxDocTemplate *temp);
362 void DisassociateTemplate(wxDocTemplate *temp);
363
364 wxDocument *GetCurrentDocument() const;
365
366 void SetMaxDocsOpen(int n) { m_maxDocsOpen = n; }
367 int GetMaxDocsOpen() const { return m_maxDocsOpen; }
368
369 // Add and remove a document from the manager's list
370 void AddDocument(wxDocument *doc);
371 void RemoveDocument(wxDocument *doc);
372
373 // closes all currently open documents
374 bool CloseDocuments(bool force = TRUE);
375
376 // Clear remaining documents and templates
377 bool Clear(bool force = TRUE);
378
379 // Views or windows should inform the document manager
380 // when a view is going in or out of focus
381 virtual void ActivateView(wxView *view, bool activate = TRUE, bool deleting = FALSE);
382 virtual wxView *GetCurrentView() const;
383
384 wxList& GetDocuments() { return m_docs; }
385 wxList& GetTemplates() { return m_templates; }
386
387 // Make a default document name
388 virtual bool MakeDefaultName(wxString& buf);
389
390 // Make a frame title (override this to do something different)
391 virtual wxString MakeFrameTitle(wxDocument* doc);
392
393 virtual wxFileHistory *OnCreateFileHistory();
394 virtual wxFileHistory *GetFileHistory() const { return m_fileHistory; }
395
396 // File history management
397 virtual void AddFileToHistory(const wxString& file);
398 virtual void RemoveFileFromHistory(int i);
399 virtual int GetNoHistoryFiles() const;
400 virtual wxString GetHistoryFile(int i) const;
401 virtual void FileHistoryUseMenu(wxMenu *menu);
402 virtual void FileHistoryRemoveMenu(wxMenu *menu);
403 #if wxUSE_CONFIG
404 virtual void FileHistoryLoad(wxConfigBase& config);
405 virtual void FileHistorySave(wxConfigBase& config);
406 #endif // wxUSE_CONFIG
407
408 virtual void FileHistoryAddFilesToMenu();
409 virtual void FileHistoryAddFilesToMenu(wxMenu* menu);
410
411 inline wxString GetLastDirectory() const { return m_lastDirectory; }
412 inline void SetLastDirectory(const wxString& dir) { m_lastDirectory = dir; }
413
414 // Get the current document manager
415 static wxDocManager* GetDocumentManager() { return sm_docManager; }
416
417 protected:
418 long m_flags;
419 int m_defaultDocumentNameCounter;
420 int m_maxDocsOpen;
421 wxList m_docs;
422 wxList m_templates;
423 wxView* m_currentView;
424 wxFileHistory* m_fileHistory;
425 wxString m_lastDirectory;
426 static wxDocManager* sm_docManager;
427
428 DECLARE_EVENT_TABLE()
429 DECLARE_NO_COPY_CLASS(wxDocManager)
430 };
431
432 // ----------------------------------------------------------------------------
433 // A default child frame
434 // ----------------------------------------------------------------------------
435
436 class WXDLLEXPORT wxDocChildFrame : public wxFrame
437 {
438 public:
439 wxDocChildFrame(wxDocument *doc,
440 wxView *view,
441 wxFrame *frame,
442 wxWindowID id,
443 const wxString& title,
444 const wxPoint& pos = wxDefaultPosition,
445 const wxSize& size = wxDefaultSize,
446 long type = wxDEFAULT_FRAME_STYLE,
447 const wxString& name = wxT("frame"));
448 ~wxDocChildFrame();
449
450 // Extend event processing to search the view's event table
451 virtual bool ProcessEvent(wxEvent& event);
452
453 void OnActivate(wxActivateEvent& event);
454 void OnCloseWindow(wxCloseEvent& event);
455
456 wxDocument *GetDocument() const { return m_childDocument; }
457 wxView *GetView() const { return m_childView; }
458 void SetDocument(wxDocument *doc) { m_childDocument = doc; }
459 void SetView(wxView *view) { m_childView = view; }
460 bool Destroy() { m_childView = (wxView *)NULL; return wxFrame::Destroy(); }
461
462 protected:
463 wxDocument* m_childDocument;
464 wxView* m_childView;
465
466 private:
467 DECLARE_CLASS(wxDocChildFrame)
468 DECLARE_EVENT_TABLE()
469 DECLARE_NO_COPY_CLASS(wxDocChildFrame)
470 };
471
472 // ----------------------------------------------------------------------------
473 // A default parent frame
474 // ----------------------------------------------------------------------------
475
476 class WXDLLEXPORT wxDocParentFrame : public wxFrame
477 {
478 public:
479 wxDocParentFrame(wxDocManager *manager,
480 wxFrame *frame,
481 wxWindowID id,
482 const wxString& title,
483 const wxPoint& pos = wxDefaultPosition,
484 const wxSize& size = wxDefaultSize,
485 long type = wxDEFAULT_FRAME_STYLE,
486 const wxString& name = wxT("frame"));
487
488 // Extend event processing to search the document manager's event table
489 virtual bool ProcessEvent(wxEvent& event);
490
491 wxDocManager *GetDocumentManager() const { return m_docManager; }
492
493 void OnExit(wxCommandEvent& event);
494 void OnMRUFile(wxCommandEvent& event);
495 void OnCloseWindow(wxCloseEvent& event);
496
497 protected:
498 wxDocManager *m_docManager;
499
500 private:
501 DECLARE_CLASS(wxDocParentFrame)
502 DECLARE_EVENT_TABLE()
503 DECLARE_NO_COPY_CLASS(wxDocParentFrame)
504 };
505
506 // ----------------------------------------------------------------------------
507 // Provide simple default printing facilities
508 // ----------------------------------------------------------------------------
509
510 #if wxUSE_PRINTING_ARCHITECTURE
511 class WXDLLEXPORT wxDocPrintout : public wxPrintout
512 {
513 public:
514 wxDocPrintout(wxView *view = (wxView *) NULL, const wxString& title = wxT("Printout"));
515 bool OnPrintPage(int page);
516 bool HasPage(int page);
517 bool OnBeginDocument(int startPage, int endPage);
518 void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo);
519
520 virtual wxView *GetView() { return m_printoutView; }
521
522 protected:
523 wxView* m_printoutView;
524
525 private:
526 DECLARE_DYNAMIC_CLASS(wxDocPrintout)
527 DECLARE_NO_COPY_CLASS(wxDocPrintout)
528 };
529 #endif // wxUSE_PRINTING_ARCHITECTURE
530
531 // ----------------------------------------------------------------------------
532 // File history management
533 // ----------------------------------------------------------------------------
534
535 class WXDLLEXPORT wxFileHistory : public wxObject
536 {
537 public:
538 wxFileHistory(int maxFiles = 9);
539 ~wxFileHistory();
540
541 // Operations
542 virtual void AddFileToHistory(const wxString& file);
543 virtual void RemoveFileFromHistory(int i);
544 virtual int GetMaxFiles() const { return m_fileMaxFiles; }
545 virtual void UseMenu(wxMenu *menu);
546
547 // Remove menu from the list (MDI child may be closing)
548 virtual void RemoveMenu(wxMenu *menu);
549
550 #if wxUSE_CONFIG
551 virtual void Load(wxConfigBase& config);
552 virtual void Save(wxConfigBase& config);
553 #endif // wxUSE_CONFIG
554
555 virtual void AddFilesToMenu();
556 virtual void AddFilesToMenu(wxMenu* menu); // Single menu
557
558 // Accessors
559 virtual wxString GetHistoryFile(int i) const;
560
561 // A synonym for GetNoHistoryFiles
562 virtual int GetCount() const { return m_fileHistoryN; }
563 int GetNoHistoryFiles() const { return m_fileHistoryN; }
564
565 wxList& GetMenus() const { return (wxList&) m_fileMenus; }
566
567 protected:
568 // Last n files
569 wxChar** m_fileHistory;
570 // Number of files saved
571 int m_fileHistoryN;
572 // Menus to maintain (may need several for an MDI app)
573 wxList m_fileMenus;
574 // Max files to maintain
575 int m_fileMaxFiles;
576
577 private:
578 DECLARE_DYNAMIC_CLASS(wxFileHistory)
579 DECLARE_NO_COPY_CLASS(wxFileHistory)
580 };
581
582 #if wxUSE_STD_IOSTREAM
583 // For compatibility with existing file formats:
584 // converts from/to a stream to/from a temporary file.
585 bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream);
586 bool WXDLLEXPORT wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename);
587 #else
588 // For compatibility with existing file formats:
589 // converts from/to a stream to/from a temporary file.
590 bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxOutputStream& stream);
591 bool WXDLLEXPORT wxTransferStreamToFile(wxInputStream& stream, const wxString& filename);
592 #endif // wxUSE_STD_IOSTREAM
593
594 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
595
596 #endif // _WX_DOCH__