wxWidgets/include/wx/docview.h

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24 KiB
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/////////////////////////////////////////////////////////////////////////////
// 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,
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();
// 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) == wxTEMPLATE_VISIBLE); }
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;
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 <counter>" 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 { return m_lastDirectory; }
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);
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 = wxT("frame"));
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"));
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;
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
#if wxUSE_STD_IOSTREAM
// For compatibility with existing file formats:
// converts from/to a stream to/from a temporary file.
bool WXDLLIMPEXP_CORE wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream);
bool WXDLLIMPEXP_CORE 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 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__