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