///////////////////////////////////////////////////////////////////////////// // Name: wx/docview.h // Purpose: Doc/View classes // Author: Julian Smart // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_DOCH__ #define _WX_DOCH__ #include "wx/defs.h" #if wxUSE_DOC_VIEW_ARCHITECTURE #include "wx/list.h" #include "wx/string.h" #include "wx/frame.h" #if wxUSE_PRINTING_ARCHITECTURE #include "wx/print.h" #endif class WXDLLIMPEXP_FWD_CORE wxWindow; class WXDLLIMPEXP_FWD_CORE wxDocument; class WXDLLIMPEXP_FWD_CORE wxView; class WXDLLIMPEXP_FWD_CORE wxDocTemplate; class WXDLLIMPEXP_FWD_CORE wxDocManager; class WXDLLIMPEXP_FWD_CORE wxPrintInfo; class WXDLLIMPEXP_FWD_CORE wxCommandProcessor; class WXDLLIMPEXP_FWD_CORE wxFileHistory; class WXDLLIMPEXP_FWD_BASE wxConfigBase; #if wxUSE_STD_IOSTREAM #include "wx/iosfwrap.h" #else #include "wx/stream.h" #endif // Flags for wxDocManager (can be combined). enum { wxDOC_NEW = 1, wxDOC_SILENT = 2 }; // Document template flags enum { wxTEMPLATE_VISIBLE = 1, wxTEMPLATE_INVISIBLE = 2, wxDEFAULT_TEMPLATE_FLAGS = wxTEMPLATE_VISIBLE }; #define wxMAX_FILE_HISTORY 9 class WXDLLIMPEXP_CORE wxDocument : public wxEvtHandler { public: wxDocument(wxDocument *parent = NULL); virtual ~wxDocument(); // accessors void SetFilename(const wxString& filename, bool notifyViews = false); wxString GetFilename() const { return m_documentFile; } void SetTitle(const wxString& title) { m_documentTitle = title; } wxString GetTitle() const { return m_documentTitle; } void SetDocumentName(const wxString& name) { m_documentTypeName = name; } wxString GetDocumentName() const { return m_documentTypeName; } // access the flag indicating whether this document had been already saved, // SetDocumentSaved() is only used internally, don't call it bool GetDocumentSaved() const { return m_savedYet; } void SetDocumentSaved(bool saved = true) { m_savedYet = saved; } // return true if the document hasn't been modified since the last time it // was saved (implying that it returns false if it was never saved, even if // the document is not modified) bool AlreadySaved() const { return !IsModified() && GetDocumentSaved(); } virtual bool Close(); virtual bool Save(); virtual bool SaveAs(); virtual bool Revert(); #if wxUSE_STD_IOSTREAM virtual wxSTD ostream& SaveObject(wxSTD ostream& stream); virtual wxSTD istream& LoadObject(wxSTD istream& stream); #else virtual wxOutputStream& SaveObject(wxOutputStream& stream); virtual wxInputStream& LoadObject(wxInputStream& stream); #endif // Called by wxWidgets virtual bool OnSaveDocument(const wxString& filename); virtual bool OnOpenDocument(const wxString& filename); virtual bool OnNewDocument(); virtual bool OnCloseDocument(); // Prompts for saving if about to close a modified document. Returns true // if ok to close the document (may have saved in the meantime, or set // modified to false) virtual bool OnSaveModified(); // if you override, remember to call the default // implementation (wxDocument::OnChangeFilename) virtual void OnChangeFilename(bool notifyViews); // Called by framework if created automatically by the default document // manager: gives document a chance to initialise and (usually) create a // view virtual bool OnCreate(const wxString& path, long flags); // By default, creates a base wxCommandProcessor. virtual wxCommandProcessor *OnCreateCommandProcessor(); virtual wxCommandProcessor *GetCommandProcessor() const { return m_commandProcessor; } virtual void SetCommandProcessor(wxCommandProcessor *proc) { m_commandProcessor = proc; } // Called after a view is added or removed. The default implementation // deletes the document if this is there are no more views. virtual void OnChangedViewList(); virtual bool DeleteContents(); virtual bool Draw(wxDC&); virtual bool IsModified() const { return m_documentModified; } virtual void Modify(bool mod) { m_documentModified = mod; } virtual bool AddView(wxView *view); virtual bool RemoveView(wxView *view); wxList& GetViews() { return m_documentViews; } const wxList& GetViews() const { return m_documentViews; } wxView *GetFirstView() const; virtual void UpdateAllViews(wxView *sender = NULL, wxObject *hint = NULL); virtual void NotifyClosing(); // Remove all views (because we're closing the document) virtual bool DeleteAllViews(); // Other stuff virtual wxDocManager *GetDocumentManager() const; virtual wxDocTemplate *GetDocumentTemplate() const { return m_documentTemplate; } virtual void SetDocumentTemplate(wxDocTemplate *temp) { m_documentTemplate = temp; } // Get the document name to be shown to the user: the title if there is // any, otherwise the filename if the document was saved and, finally, // "unnamed" otherwise virtual wxString GetUserReadableName() const; #if WXWIN_COMPATIBILITY_2_8 // use GetUserReadableName() instead wxDEPRECATED_BUT_USED_INTERNALLY( virtual bool GetPrintableName(wxString& buf) const ); #endif // WXWIN_COMPATIBILITY_2_8 // Returns a window that can be used as a parent for document-related // dialogs. Override if necessary. virtual wxWindow *GetDocumentWindow() const; protected: wxList m_documentViews; wxString m_documentFile; wxString m_documentTitle; wxString m_documentTypeName; wxDocTemplate* m_documentTemplate; bool m_documentModified; wxDocument* m_documentParent; wxCommandProcessor* m_commandProcessor; bool m_savedYet; // Called by OnSaveDocument and OnOpenDocument to implement standard // Save/Load behavior. Re-implement in derived class for custom // behavior. virtual bool DoSaveDocument(const wxString& file); virtual bool DoOpenDocument(const wxString& file); // the default implementation of GetUserReadableName() wxString DoGetUserReadableName() const; private: DECLARE_ABSTRACT_CLASS(wxDocument) DECLARE_NO_COPY_CLASS(wxDocument) }; class WXDLLIMPEXP_CORE wxView: public wxEvtHandler { public: wxView(); virtual ~wxView(); wxDocument *GetDocument() const { return m_viewDocument; } virtual void SetDocument(wxDocument *doc); wxString GetViewName() const { return m_viewTypeName; } void SetViewName(const wxString& name) { m_viewTypeName = name; } wxWindow *GetFrame() const { return m_viewFrame ; } void SetFrame(wxWindow *frame) { m_viewFrame = frame; } virtual void OnActivateView(bool activate, wxView *activeView, wxView *deactiveView); virtual void OnDraw(wxDC *dc) = 0; virtual void OnPrint(wxDC *dc, wxObject *info); virtual void OnUpdate(wxView *sender, wxObject *hint = NULL); virtual void OnClosingDocument() {} virtual void OnChangeFilename(); // Called by framework if created automatically by the default document // manager class: gives view a chance to initialise virtual bool OnCreate(wxDocument *WXUNUSED(doc), long WXUNUSED(flags)) { return true; } // Checks if the view is the last one for the document; if so, asks user // to confirm save data (if modified). If ok, deletes itself and returns // true. virtual bool Close(bool deleteWindow = true); // Override to do cleanup/veto close virtual bool OnClose(bool deleteWindow); // A view's window can call this to notify the view it is (in)active. // The function then notifies the document manager. virtual void Activate(bool activate); wxDocManager *GetDocumentManager() const { return m_viewDocument->GetDocumentManager(); } #if wxUSE_PRINTING_ARCHITECTURE virtual wxPrintout *OnCreatePrintout(); #endif protected: // hook the document into event handlers chain here virtual bool TryValidator(wxEvent& event); wxDocument* m_viewDocument; wxString m_viewTypeName; wxWindow* m_viewFrame; private: DECLARE_ABSTRACT_CLASS(wxView) DECLARE_NO_COPY_CLASS(wxView) }; // Represents user interface (and other) properties of documents and views class WXDLLIMPEXP_CORE wxDocTemplate: public wxObject { friend class WXDLLIMPEXP_FWD_CORE wxDocManager; public: // Associate document and view types. They're for identifying what view is // associated with what template/document type wxDocTemplate(wxDocManager *manager, const wxString& descr, const wxString& filter, const wxString& dir, const wxString& ext, const wxString& docTypeName, const wxString& viewTypeName, wxClassInfo *docClassInfo = NULL, wxClassInfo *viewClassInfo = NULL, long flags = wxDEFAULT_TEMPLATE_FLAGS); virtual ~wxDocTemplate(); // By default, these two member functions dynamically creates document and // view using dynamic instance construction. Override these if you need a // different method of construction. virtual wxDocument *CreateDocument(const wxString& path, long flags = 0); virtual wxView *CreateView(wxDocument *doc, long flags = 0); // Helper method for CreateDocument; also allows you to do your own document // creation virtual bool InitDocument(wxDocument* doc, const wxString& path, long flags = 0); wxString GetDefaultExtension() const { return m_defaultExt; } wxString GetDescription() const { return m_description; } wxString GetDirectory() const { return m_directory; } wxDocManager *GetDocumentManager() const { return m_documentManager; } void SetDocumentManager(wxDocManager *manager) { m_documentManager = manager; } wxString GetFileFilter() const { return m_fileFilter; } long GetFlags() const { return m_flags; } virtual wxString GetViewName() const { return m_viewTypeName; } virtual wxString GetDocumentName() const { return m_docTypeName; } void SetFileFilter(const wxString& filter) { m_fileFilter = filter; } void SetDirectory(const wxString& dir) { m_directory = dir; } void SetDescription(const wxString& descr) { m_description = descr; } void SetDefaultExtension(const wxString& ext) { m_defaultExt = ext; } void SetFlags(long flags) { m_flags = flags; } bool IsVisible() const { return (m_flags & wxTEMPLATE_VISIBLE) != 0; } wxClassInfo* GetDocClassInfo() const { return m_docClassInfo; } wxClassInfo* GetViewClassInfo() const { return m_viewClassInfo; } virtual bool FileMatchesTemplate(const wxString& path); protected: long m_flags; wxString m_fileFilter; wxString m_directory; wxString m_description; wxString m_defaultExt; wxString m_docTypeName; wxString m_viewTypeName; wxDocManager* m_documentManager; // For dynamic creation of appropriate instances. wxClassInfo* m_docClassInfo; wxClassInfo* m_viewClassInfo; // Called by CreateDocument and CreateView to create the actual // document/view object. // // By default uses the ClassInfo provided to the constructor. Override // these functions to provide a different method of creation. virtual wxDocument *DoCreateDocument(); virtual wxView *DoCreateView(); private: DECLARE_CLASS(wxDocTemplate) DECLARE_NO_COPY_CLASS(wxDocTemplate) }; // One object of this class may be created in an application, to manage all // the templates and documents. class WXDLLIMPEXP_CORE wxDocManager: public wxEvtHandler { public: // NB: flags are unused, don't pass wxDOC_XXX to this ctor wxDocManager(long flags = 0, bool initialize = true); virtual ~wxDocManager(); virtual bool Initialize(); // Handlers for common user commands void OnFileClose(wxCommandEvent& event); void OnFileCloseAll(wxCommandEvent& event); void OnFileNew(wxCommandEvent& event); void OnFileOpen(wxCommandEvent& event); void OnFileRevert(wxCommandEvent& event); void OnFileSave(wxCommandEvent& event); void OnFileSaveAs(wxCommandEvent& event); void OnPrint(wxCommandEvent& event); void OnPreview(wxCommandEvent& event); void OnUndo(wxCommandEvent& event); void OnRedo(wxCommandEvent& event); // Handlers for UI update commands void OnUpdateFileOpen(wxUpdateUIEvent& event); void OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event); void OnUpdateFileNew(wxUpdateUIEvent& event); void OnUpdateFileSave(wxUpdateUIEvent& event); void OnUpdateUndo(wxUpdateUIEvent& event); void OnUpdateRedo(wxUpdateUIEvent& event); // called when file format detection didn't work, can be overridden to do // something in this case virtual void OnOpenFileFailure() { } virtual wxDocument *CreateDocument(const wxString& path, long flags = 0); // wrapper around CreateDocument() with a more clear name wxDocument *CreateNewDocument() { return CreateDocument(wxString(), wxDOC_NEW); } virtual wxView *CreateView(wxDocument *doc, long flags = 0); virtual void DeleteTemplate(wxDocTemplate *temp, long flags = 0); virtual bool FlushDoc(wxDocument *doc); virtual wxDocTemplate *MatchTemplate(const wxString& path); virtual wxDocTemplate *SelectDocumentPath(wxDocTemplate **templates, int noTemplates, wxString& path, long flags, bool save = false); virtual wxDocTemplate *SelectDocumentType(wxDocTemplate **templates, int noTemplates, bool sort = false); virtual wxDocTemplate *SelectViewType(wxDocTemplate **templates, int noTemplates, bool sort = false); virtual wxDocTemplate *FindTemplateForPath(const wxString& path); void AssociateTemplate(wxDocTemplate *temp); void DisassociateTemplate(wxDocTemplate *temp); wxDocument *GetCurrentDocument() const; void SetMaxDocsOpen(int n) { m_maxDocsOpen = n; } int GetMaxDocsOpen() const { return m_maxDocsOpen; } // Add and remove a document from the manager's list void AddDocument(wxDocument *doc); void RemoveDocument(wxDocument *doc); // closes all currently open documents bool CloseDocuments(bool force = true); // closes the specified document bool CloseDocument(wxDocument* doc, bool force = false); // Clear remaining documents and templates bool Clear(bool force = true); // Views or windows should inform the document manager // when a view is going in or out of focus virtual void ActivateView(wxView *view, bool activate = true); virtual wxView *GetCurrentView() const { return m_currentView; } wxList& GetDocuments() { return m_docs; } wxList& GetTemplates() { return m_templates; } // Return the default name for a new document (by default returns strings // in the form "unnamed " but can be overridden) virtual wxString MakeNewDocumentName(); // Make a frame title (override this to do something different) virtual wxString MakeFrameTitle(wxDocument* doc); virtual wxFileHistory *OnCreateFileHistory(); virtual wxFileHistory *GetFileHistory() const { return m_fileHistory; } // File history management virtual void AddFileToHistory(const wxString& file); virtual void RemoveFileFromHistory(size_t i); virtual size_t GetHistoryFilesCount() const; virtual wxString GetHistoryFile(size_t i) const; virtual void FileHistoryUseMenu(wxMenu *menu); virtual void FileHistoryRemoveMenu(wxMenu *menu); #if wxUSE_CONFIG virtual void FileHistoryLoad(const wxConfigBase& config); virtual void FileHistorySave(wxConfigBase& config); #endif // wxUSE_CONFIG virtual void FileHistoryAddFilesToMenu(); virtual void FileHistoryAddFilesToMenu(wxMenu* menu); wxString GetLastDirectory() const; void SetLastDirectory(const wxString& dir) { m_lastDirectory = dir; } // Get the current document manager static wxDocManager* GetDocumentManager() { return sm_docManager; } #if WXWIN_COMPATIBILITY_2_8 // deprecated, override GetDefaultName() instead wxDEPRECATED_BUT_USED_INTERNALLY( virtual bool MakeDefaultName(wxString& buf) ); #endif #if WXWIN_COMPATIBILITY_2_6 // deprecated, use GetHistoryFilesCount() instead wxDEPRECATED( size_t GetNoHistoryFiles() const ); #endif // WXWIN_COMPATIBILITY_2_6 protected: // hook the currently active view into event handlers chain here virtual bool TryValidator(wxEvent& event); // return the command processor for the current document, if any wxCommandProcessor *GetCurrentCommandProcessor() const; // this method tries to find an active view harder than GetCurrentView(): // if the latter is NULL, it also checks if we don't have just a single // view and returns it then wxView *GetActiveView() const; int m_defaultDocumentNameCounter; int m_maxDocsOpen; wxList m_docs; wxList m_templates; wxView* m_currentView; wxFileHistory* m_fileHistory; wxString m_lastDirectory; static wxDocManager* sm_docManager; DECLARE_EVENT_TABLE() DECLARE_DYNAMIC_CLASS(wxDocManager) DECLARE_NO_COPY_CLASS(wxDocManager) }; #if WXWIN_COMPATIBILITY_2_6 inline size_t wxDocManager::GetNoHistoryFiles() const { return GetHistoryFilesCount(); } #endif // WXWIN_COMPATIBILITY_2_6 // ---------------------------------------------------------------------------- // A default child frame // ---------------------------------------------------------------------------- class WXDLLIMPEXP_CORE wxDocChildFrame : public wxFrame { public: wxDocChildFrame(wxDocument *doc, wxView *view, wxFrame *frame, wxWindowID id, const wxString& title, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long type = wxDEFAULT_FRAME_STYLE, const wxString& name = wxFrameNameStr); virtual ~wxDocChildFrame(){} void OnActivate(wxActivateEvent& event); void OnCloseWindow(wxCloseEvent& event); wxDocument *GetDocument() const { return m_childDocument; } wxView *GetView() const { return m_childView; } void SetDocument(wxDocument *doc) { m_childDocument = doc; } void SetView(wxView *view) { m_childView = view; } bool Destroy() { m_childView = NULL; return wxFrame::Destroy(); } protected: // hook the child view into event handlers chain here virtual bool TryValidator(wxEvent& event); wxDocument* m_childDocument; wxView* m_childView; private: DECLARE_CLASS(wxDocChildFrame) DECLARE_EVENT_TABLE() DECLARE_NO_COPY_CLASS(wxDocChildFrame) }; // ---------------------------------------------------------------------------- // A default parent frame // ---------------------------------------------------------------------------- class WXDLLIMPEXP_CORE wxDocParentFrame : public wxFrame { public: wxDocParentFrame(); wxDocParentFrame(wxDocManager *manager, wxFrame *frame, wxWindowID id, const wxString& title, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxDEFAULT_FRAME_STYLE, const wxString& name = wxFrameNameStr); bool Create(wxDocManager *manager, wxFrame *frame, wxWindowID id, const wxString& title, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxDEFAULT_FRAME_STYLE, const wxString& name = wxFrameNameStr); wxDocManager *GetDocumentManager() const { return m_docManager; } void OnExit(wxCommandEvent& event); void OnMRUFile(wxCommandEvent& event); void OnCloseWindow(wxCloseEvent& event); protected: // hook the document manager into event handling chain here virtual bool TryValidator(wxEvent& event); wxDocManager *m_docManager; private: typedef wxFrame base_type; DECLARE_CLASS(wxDocParentFrame) DECLARE_EVENT_TABLE() DECLARE_NO_COPY_CLASS(wxDocParentFrame) }; // ---------------------------------------------------------------------------- // Provide simple default printing facilities // ---------------------------------------------------------------------------- #if wxUSE_PRINTING_ARCHITECTURE class WXDLLIMPEXP_CORE wxDocPrintout : public wxPrintout { public: wxDocPrintout(wxView *view = NULL, const wxString& title = wxT("Printout")); // implement wxPrintout methods virtual bool OnPrintPage(int page); virtual bool HasPage(int page); virtual bool OnBeginDocument(int startPage, int endPage); virtual void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo); virtual wxView *GetView() { return m_printoutView; } protected: wxView* m_printoutView; private: DECLARE_DYNAMIC_CLASS(wxDocPrintout) DECLARE_NO_COPY_CLASS(wxDocPrintout) }; #endif // wxUSE_PRINTING_ARCHITECTURE // ---------------------------------------------------------------------------- // File history management // ---------------------------------------------------------------------------- class WXDLLIMPEXP_CORE wxFileHistory : public wxObject { public: wxFileHistory(size_t maxFiles = 9, wxWindowID idBase = wxID_FILE1); // Operations virtual void AddFileToHistory(const wxString& file); virtual void RemoveFileFromHistory(size_t i); virtual int GetMaxFiles() const { return (int)m_fileMaxFiles; } virtual void UseMenu(wxMenu *menu); // Remove menu from the list (MDI child may be closing) virtual void RemoveMenu(wxMenu *menu); #if wxUSE_CONFIG virtual void Load(const wxConfigBase& config); virtual void Save(wxConfigBase& config); #endif // wxUSE_CONFIG virtual void AddFilesToMenu(); virtual void AddFilesToMenu(wxMenu* menu); // Single menu // Accessors virtual wxString GetHistoryFile(size_t i) const { return m_fileHistory[i]; } virtual size_t GetCount() const { return m_fileHistory.GetCount(); } const wxList& GetMenus() const { return m_fileMenus; } // Set/get base id void SetBaseId(wxWindowID baseId) { m_idBase = baseId; } wxWindowID GetBaseId() const { return m_idBase; } #if WXWIN_COMPATIBILITY_2_6 // deprecated, use GetCount() instead wxDEPRECATED( size_t GetNoHistoryFiles() const ); #endif // WXWIN_COMPATIBILITY_2_6 protected: // Last n files wxArrayString m_fileHistory; // Menus to maintain (may need several for an MDI app) wxList m_fileMenus; // Max files to maintain size_t m_fileMaxFiles; private: // The ID of the first history menu item (Doesn't have to be wxID_FILE1) wxWindowID m_idBase; DECLARE_DYNAMIC_CLASS(wxFileHistory) DECLARE_NO_COPY_CLASS(wxFileHistory) }; #if WXWIN_COMPATIBILITY_2_6 inline size_t wxFileHistory::GetNoHistoryFiles() const { return m_fileHistory.GetCount(); } #endif // WXWIN_COMPATIBILITY_2_6 // For compatibility with existing file formats: // converts from/to a stream to/from a temporary file. #if wxUSE_STD_IOSTREAM bool WXDLLIMPEXP_CORE wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream); bool WXDLLIMPEXP_CORE wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename); #else bool WXDLLIMPEXP_CORE wxTransferFileToStream(const wxString& filename, wxOutputStream& stream); bool WXDLLIMPEXP_CORE wxTransferStreamToFile(wxInputStream& stream, const wxString& filename); #endif // wxUSE_STD_IOSTREAM // these flags are not used anywhere by wxWidgets and kept only for an unlikely // case of existing user code using them for its own purposes #ifdef WXWIN_COMPATIBILITY_2_8 enum { wxDOC_SDI = 1, wxDOC_MDI, wxDEFAULT_DOCMAN_FLAGS = wxDOC_SDI }; #endif // WXWIN_COMPATIBILITY_2_8 #endif // wxUSE_DOC_VIEW_ARCHITECTURE #endif // _WX_DOCH__