// Purpose: interface of various doc/view framework classes
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
A name that should be unique for a given view.
@param docClassInfo
A pointer to the run-time document class information as returned by
- the CLASSINFO() macro, e.g. CLASSINFO(MyDocumentClass). If this is
+ the wxCLASSINFO() macro, e.g. wxCLASSINFO(MyDocumentClass). If this is
not supplied, you will need to derive a new wxDocTemplate class and
override the CreateDocument() member to return a new document
instance on demand.
@param viewClassInfo
A pointer to the run-time view class information as returned by the
- CLASSINFO() macro, e.g. CLASSINFO(MyViewClass). If this is not
+ wxCLASSINFO() macro, e.g. wxCLASSINFO(MyViewClass). If this is not
supplied, you will need to derive a new wxDocTemplate class and
override the CreateView() member to return a new view instance on
demand.
*/
long GetFlags() const;
+ /**
+ Returns a reference to the wxPageSetupDialogData associated with the
+ printing operations of this document manager.
+ */
+ //@{
+ wxPageSetupDialogData& GetPageSetupDialogData();
+ const wxPageSetupDialogData& GetPageSetupDialogData() const;
+ //@}
+
/**
Returns the run-time class information that allows view instances
to be constructed dynamically, as passed to the document template
*/
void AssociateTemplate(wxDocTemplate* temp);
+ /**
+ Search for a particular document template.
+
+ Example:
+ @code
+ // creating a document instance of the specified document type:
+ m_doc = (MyDoc*)docManager->FindTemplate(CLASSINFO(MyDoc))->
+ CreateDocument(wxEmptyString, wxDOC_SILENT);
+ @endcode
+
+ @param classinfo
+ Class info of a document class for which a wxDocTemplate had been
+ previously created.
+
+ @return
+ Pointer to a wxDocTemplate, or @NULL if none found.
+
+ @since 2.9.2
+ */
+ wxDocTemplate* FindTemplate(const wxClassInfo* classinfo);
+
+ /**
+ Closes the specified document.
+
+ If @a force is @true, the document is closed even if it has unsaved
+ changes.
+
+ @param doc
+ The document to close, must be non-@NULL.
+ @param force
+ If @true, close the document even if wxDocument::Close() returns
+ @false.
+ @return
+ @true if the document was closed or @false if closing it was
+ cancelled by user (only in @a force = @false case).
+ */
+ bool CloseDocument(wxDocument *doc, bool force = false);
+
/**
Closes all currently opened documents.
+
+ @see CloseDocument()
*/
bool CloseDocuments(bool force = true);
@param noTemplates
Number of templates being pointed to by the templates pointer.
@param sort
- If more than one template is passed in in templates, then this
+ If more than one template is passed into templates, then this
parameter indicates whether the list of templates that the user
will have to choose from is sorted or not when shown the choice box
dialog. Default is @false.
@param noTemplates
Number of templates being pointed to by the templates pointer.
@param sort
- If more than one template is passed in in templates, then this
+ If more than one template is passed into templates, then this
parameter indicates whether the list of templates that the user
will have to choose from is sorted or not when shown the choice box
dialog. Default is @false.
*/
void SetMaxDocsOpen(int n);
+
+protected:
+ /**
+ Called when a file selected from the MRU list doesn't exist any more.
+
+ The default behaviour is to remove the file from the MRU (most recently
+ used) files list and the corresponding menu and notify the user about
+ it but this method can be overridden to customize it.
+
+ For example, an application may want to just give an error about the
+ missing file @a filename but not remove it from the file history. Or it
+ could ask the user whether the file should be kept or removed.
+
+ Notice that this method is called only if the file selected by user
+ from the MRU files in the menu doesn't exist, but not if opening it
+ failed for any other reason because in the latter case the default
+ behaviour of removing the file from the MRU list is inappropriate.
+ If you still want to do it, you would need to do it by calling
+ RemoveFileFromHistory() explicitly in the part of the file opening code
+ that may fail.
+
+ @since 2.9.3
+
+ @param n
+ The index of the file in the MRU list, it can be passed to
+ RemoveFileFromHistory() to remove this file from the list.
+ @param filename
+ The full name of the file.
+ */
+ virtual void OnMRUFileNotExist(unsigned n, const wxString& filename);
+
+
/**
The currently active view.
*/
*/
wxFileHistory* m_fileHistory;
- /**
- Stores the flags passed to the constructor.
- */
- long m_flags;
-
/**
The directory last selected by the user when opening a file.
*/
- wxFileHistory* m_fileHistory;
+ wxString m_lastDirectory;
/**
Stores the maximum number of documents that can be opened before
- existing documents are closed. By default, this is 10,000.
+ existing documents are closed.
+
+ By default, this is @c INT_MAX i.e. practically unlimited.
*/
int m_maxDocsOpen;
};
@class wxDocument
The document class can be used to model an application's file-based data.
+
It is part of the document/view framework supported by wxWidgets, and
cooperates with the wxView, wxDocTemplate and wxDocManager classes.
+ A normal document is the one created without parent document and is
+ associated with a disk file. Since version 2.9.2 wxWidgets also supports a
+ special kind of documents called <em>child documents</em> which are virtual
+ in the sense that they do not correspond to a file but rather to a part of
+ their parent document. Because of this, the child documents can't be
+ created directly by user but can only be created by the parent document
+ (usually when it's being created itself). They also can't be independently
+ saved. A child document has its own view with the corresponding window.
+ This view can be closed by user but, importantly, is also automatically
+ closed when its parent document is closed. Thus, child documents may be
+ convenient for creating additional windows which need to be closed when the
+ main document is. The docview sample demonstrates this use of child
+ documents by creating a child document containing the information about the
+ parameters of the image opened in the main document.
+
@library{wxcore}
@category{docview}
/**
Constructor. Define your own default constructor to initialize
application-specific data.
+
+ @param parent
+ Specifying a non-@c NULL parent document here makes this document a
+ special <em>child document</em>, see their description in the class
+ documentation. Notice that this parameter exists but is ignored in
+ wxWidgets versions prior to 2.9.1.
*/
- wxDocument(wxDocument* parent = 0);
+ wxDocument(wxDocument* parent = NULL);
/**
Destructor. Removes itself from the document manager.
*/
virtual bool DeleteAllViews();
+ /**
+ Virtual method called from OnCloseDocument().
+
+ This method may be overridden to perform any additional cleanup which
+ might be needed when the document is closed.
+
+ The return value of this method is currently ignored.
+
+ The default version does nothing and simply returns @true.
+ */
+ virtual bool DeleteContents();
+
/**
Returns a pointer to the command processor associated with this
document.
const wxList& GetViews() const;
//@}
+ /**
+ Returns true if this document is a child document corresponding to a
+ part of the parent document and not a disk file as usual.
+
+ This method can be used to check whether file-related operations make
+ sense for this document as they only apply to top-level documents and
+ not child ones.
+
+ @since 2.9.2
+ */
+ bool IsChildDocument() const;
+
/**
Returns @true if the document has been modified since the last save,
@false otherwise. You may need to override this if your document view
/**
This virtual function is called when the document is being closed.
- The default implementation calls DeleteContents() (an empty
- implementation) and sets the modified flag to @false. You can override
- it to supply additional behaviour when the document is closed with
- Close().
+ The default implementation calls DeleteContents() (which may be
+ overridden to perform additional cleanup) and sets the modified flag to
+ @false. You can override it to supply additional behaviour when the
+ document is closed with Close().
Notice that previous wxWidgets versions used to call this function also
from OnNewDocument(), rather counter-intuitively. This is no longer the
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