wxWidgets/include/wx/docview.h

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/////////////////////////////////////////////////////////////////////////////
// Name: docview.h
// Purpose: Doc/View classes
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c)
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DOCH__
#define _WX_DOCH__
#ifdef __GNUG__
#pragma interface "docview.h"
#endif
#include "wx/defs.h"
#include "wx/list.h"
#include "wx/cmndata.h"
#include "wx/string.h"
#include "wx/frame.h"
#if wxUSE_PRINTING_ARCHITECTURE
#include "wx/print.h"
#endif
class WXDLLEXPORT wxWindow;
class WXDLLEXPORT wxDocument;
class WXDLLEXPORT wxView;
class WXDLLEXPORT wxDocTemplate;
class WXDLLEXPORT wxDocManager;
class WXDLLEXPORT wxPrintInfo;
class WXDLLEXPORT wxCommandProcessor;
class WXDLLEXPORT wxFileHistory;
class WXDLLEXPORT wxConfigBase;
#if wxUSE_STD_IOSTREAM
#include "wx/ioswrap.h"
#else
#include "wx/stream.h"
#endif
// Document manager flags
enum
{
wxDOC_SDI = 1,
wxDOC_MDI,
wxDOC_NEW,
wxDOC_SILENT,
wxDEFAULT_DOCMAN_FLAGS = wxDOC_SDI
};
// Document template flags
enum
{
wxTEMPLATE_VISIBLE = 1,
wxTEMPLATE_INVISIBLE,
wxDEFAULT_TEMPLATE_FLAGS = wxTEMPLATE_VISIBLE
};
#define wxMAX_FILE_HISTORY 9
class WXDLLEXPORT wxDocument : public wxEvtHandler
{
DECLARE_ABSTRACT_CLASS(wxDocument)
public:
wxDocument(wxDocument *parent = (wxDocument *) NULL);
~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; }
bool GetDocumentSaved() const { return m_savedYet; }
void SetDocumentSaved(bool saved = TRUE) { m_savedYet = saved; }
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 wxWindows
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();
// 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() const { return (wxList&) m_documentViews; }
wxView *GetFirstView() const;
virtual void UpdateAllViews(wxView *sender = (wxView *) NULL, wxObject *hint = (wxObject *) NULL);
// 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 title, or filename if no title, else [unnamed]
virtual bool GetPrintableName(wxString& buf) const;
// 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;
};
class WXDLLEXPORT wxView: public wxEvtHandler
{
DECLARE_ABSTRACT_CLASS(wxView)
public:
// wxView(wxDocument *doc = (wxDocument *) NULL);
wxView();
~wxView();
wxDocument *GetDocument() const { return m_viewDocument; }
void SetDocument(wxDocument *doc);
wxString GetViewName() const { return m_viewTypeName; }
void SetViewName(const wxString& name) { m_viewTypeName = name; };
wxFrame *GetFrame() const { return m_viewFrame ; }
void SetFrame(wxFrame *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 = (wxObject *) NULL);
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);
#if WXWIN_COMPATIBILITY
// Defeat compiler warning
bool OnClose() { return wxEvtHandler::OnClose(); }
#endif
// Extend event processing to search the document's event table
virtual bool ProcessEvent(wxEvent& event);
// 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:
wxDocument* m_viewDocument;
wxString m_viewTypeName;
wxFrame* m_viewFrame;
};
// Represents user interface (and other) properties of documents and views
class WXDLLEXPORT wxDocTemplate: public wxObject
{
DECLARE_CLASS(wxDocTemplate)
friend class WXDLLEXPORT 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 = (wxClassInfo *) NULL,
wxClassInfo *viewClassInfo = (wxClassInfo *)NULL,
long flags = wxDEFAULT_TEMPLATE_FLAGS);
~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);
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) == wxTEMPLATE_VISIBLE); }
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;
};
// One object of this class may be created in an application, to manage all
// the templates and documents.
class WXDLLEXPORT wxDocManager: public wxEvtHandler
{
DECLARE_DYNAMIC_CLASS(wxDocManager)
public:
wxDocManager(long flags = wxDEFAULT_DOCMAN_FLAGS, bool initialize = TRUE);
~wxDocManager();
virtual bool Initialize();
// Handlers for common user commands
void OnFileClose(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 OnPrintSetup(wxCommandEvent& event);
void OnPreview(wxCommandEvent& event);
void OnUndo(wxCommandEvent& event);
void OnRedo(wxCommandEvent& event);
// Handlers for UI update commands
void OnUpdateFileOpen(wxUpdateUIEvent& event);
void OnUpdateFileClose(wxUpdateUIEvent& event);
void OnUpdateFileRevert(wxUpdateUIEvent& event);
void OnUpdateFileNew(wxUpdateUIEvent& event);
void OnUpdateFileSave(wxUpdateUIEvent& event);
void OnUpdateFileSaveAs(wxUpdateUIEvent& event);
void OnUpdateUndo(wxUpdateUIEvent& event);
void OnUpdateRedo(wxUpdateUIEvent& event);
void OnUpdatePrint(wxUpdateUIEvent& event);
void OnUpdatePrintSetup(wxUpdateUIEvent& event);
void OnUpdatePreview(wxUpdateUIEvent& event);
// Extend event processing to search the view's event table
virtual bool ProcessEvent(wxEvent& event);
// called when file format detection didn't work, can be overridden to do
// something in this case
// This is of course completely stupid, because if the file dialog is
// cancelled you get an assert. Brilliant. -- JACS
// virtual void OnOpenFileFailure() { wxFAIL_MSG(_T("file format mismatch")); }
virtual void OnOpenFileFailure() { }
virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
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);
// 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, bool deleting = FALSE);
virtual wxView *GetCurrentView() const;
wxList& GetDocuments() { return m_docs; }
wxList& GetTemplates() { return m_templates; }
// Make a default document name
virtual bool MakeDefaultName(wxString& buf);
// 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(int i);
virtual int GetNoHistoryFiles() const;
virtual wxString GetHistoryFile(int i) const;
virtual void FileHistoryUseMenu(wxMenu *menu);
virtual void FileHistoryRemoveMenu(wxMenu *menu);
#if wxUSE_CONFIG
virtual void FileHistoryLoad(wxConfigBase& config);
virtual void FileHistorySave(wxConfigBase& config);
#endif // wxUSE_CONFIG
virtual void FileHistoryAddFilesToMenu();
virtual void FileHistoryAddFilesToMenu(wxMenu* menu);
inline wxString GetLastDirectory() const { return m_lastDirectory; }
inline void SetLastDirectory(const wxString& dir) { m_lastDirectory = dir; }
// Get the current document manager
static wxDocManager* GetDocumentManager() { return sm_docManager; }
protected:
long m_flags;
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()
};
// ----------------------------------------------------------------------------
// A default child frame
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxDocChildFrame : public wxFrame
{
DECLARE_CLASS(wxDocChildFrame)
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 = "frame");
~wxDocChildFrame();
// Extend event processing to search the view's event table
virtual bool ProcessEvent(wxEvent& event);
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 = (wxView *)NULL; return wxFrame::Destroy(); }
protected:
wxDocument* m_childDocument;
wxView* m_childView;
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// A default parent frame
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxDocParentFrame : public wxFrame
{
DECLARE_CLASS(wxDocParentFrame)
public:
wxDocParentFrame(wxDocManager *manager,
wxFrame *frame,
wxWindowID id,
const wxString& title,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long type = wxDEFAULT_FRAME_STYLE,
const wxString& name = "frame");
// Extend event processing to search the document manager's event table
virtual bool ProcessEvent(wxEvent& event);
wxDocManager *GetDocumentManager() const { return m_docManager; }
void OnExit(wxCommandEvent& event);
void OnMRUFile(wxCommandEvent& event);
void OnCloseWindow(wxCloseEvent& event);
protected:
wxDocManager *m_docManager;
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// Provide simple default printing facilities
// ----------------------------------------------------------------------------
#if wxUSE_PRINTING_ARCHITECTURE
class WXDLLEXPORT wxDocPrintout : public wxPrintout
{
DECLARE_DYNAMIC_CLASS(wxDocPrintout)
public:
wxDocPrintout(wxView *view = (wxView *) NULL, const wxString& title = "Printout");
bool OnPrintPage(int page);
bool HasPage(int page);
bool OnBeginDocument(int startPage, int endPage);
void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo);
virtual wxView *GetView() { return m_printoutView; }
protected:
wxView* m_printoutView;
};
#endif // wxUSE_PRINTING_ARCHITECTURE
// ----------------------------------------------------------------------------
// File history management
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxFileHistory : public wxObject
{
DECLARE_DYNAMIC_CLASS(wxFileHistory)
public:
wxFileHistory(int maxFiles = 9);
~wxFileHistory();
// Operations
virtual void AddFileToHistory(const wxString& file);
virtual void RemoveFileFromHistory(int i);
virtual int GetMaxFiles() const { return 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(wxConfigBase& config);
virtual void Save(wxConfigBase& config);
#endif // wxUSE_CONFIG
virtual void AddFilesToMenu();
virtual void AddFilesToMenu(wxMenu* menu); // Single menu
// Accessors
virtual wxString GetHistoryFile(int i) const;
// A synonym for GetNoHistoryFiles
virtual int GetCount() const { return m_fileHistoryN; }
int GetNoHistoryFiles() const { return m_fileHistoryN; }
wxList& GetMenus() const { return (wxList&) m_fileMenus; }
protected:
// Last n files
wxChar** m_fileHistory;
// Number of files saved
int m_fileHistoryN;
// Menus to maintain (may need several for an MDI app)
wxList m_fileMenus;
// Max files to maintain
int m_fileMaxFiles;
};
#if wxUSE_STD_IOSTREAM
// For compatibility with existing file formats:
// converts from/to a stream to/from a temporary file.
bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream);
bool WXDLLEXPORT wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename);
#else
// For compatibility with existing file formats:
// converts from/to a stream to/from a temporary file.
bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxOutputStream& stream);
bool WXDLLEXPORT wxTransferStreamToFile(wxInputStream& stream, const wxString& filename);
#endif
#endif // _WX_DOCH__