*/
wxList& GetTemplates();
- /**
- Create the frame used for print preview.
-
- This method can be overridden if you need to change the behaviour or
- appearance of the preview window. By default, a standard wxPreviewFrame
- is created.
-
- @since 2.9.1
-
- @param preview The associated preview object.
- @param parent The parent window for the frame.
- @param title The suggested title for the print preview frame.
- @return A new print preview frame, must not return @NULL.
- */
- virtual wxPreviewFrame* CreatePreviewFrame(wxPrintPreviewBase* preview,
- wxWindow* parent,
- const wxString& title);
-
/**
Initializes data; currently just calls OnCreateFileHistory().
*/
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);
+
+ /**
+ Create the frame used for print preview.
+
+ This method can be overridden if you need to change the behaviour or
+ appearance of the preview window. By default, a standard wxPreviewFrame
+ is created.
+
+ @since 2.9.1
+
+ @param preview The associated preview object.
+ @param parent The parent window for the frame.
+ @param title The suggested title for the print preview frame.
+ @return A new print preview frame, must not return @NULL.
+ */
+ virtual wxPreviewFrame* CreatePreviewFrame(wxPrintPreviewBase* preview,
+ wxWindow* parent,
+ const wxString& title);
+
/**
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;
};
and cooperates with the wxView, wxDocument, wxDocManager and wxDocTemplate
classes.
+ Notice that this class handles ::wxEVT_ACTIVATE event and activates the
+ child view on receiving it. Don't intercept this event unless you want to
+ prevent from this happening.
+
+ The same remark applies to ::wxEVT_CLOSE_WINDOW, as wxDocParentFrame the
+ frame handles this event by trying to close the associated view.
+
@library{wxcore}
@category{docview}
*/
wxView* GetView() const;
- /**
- Sets the currently active view to be the frame's view. You may need to
- override (but still call) this function in order to set the keyboard
- focus for your subwindow.
- */
- void OnActivate(wxActivateEvent& event);
-
- /**
- Closes and deletes the current view and document.
- */
- void OnCloseWindow(wxCloseEvent& event);
-
/**
Sets the document for this frame.
*/
It cooperates with the wxView, wxDocument, wxDocManager and wxDocTemplate
classes.
+ Notice that this class processes ::wxEVT_CLOSE_WINDOW event and tries to
+ close all open views from its handler. If all the views can be closed, i.e.
+ if none of them contains unsaved changes or the user decides to not save
+ them, the window is destroyed. Don't intercept this event in your code
+ unless you want to replace this logic.
+
@library{wxcore}
@category{docview}
Returns the associated document manager object.
*/
wxDocManager* GetDocumentManager() const;
-
- /**
- Deletes all views and documents. If no user input cancelled the
- operation, the frame will be destroyed and the application will exit.
- Since understanding how document/view clean-up takes place can be
- difficult, the implementation of this function is shown below:
-
- @code
- void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
- {
- if (m_docManager->Clear(!event.CanVeto()))
- {
- this->Destroy();
- }
- else
- event.Veto();
- }
- @endcode
- */
- void OnCloseWindow(wxCloseEvent& event);
};
@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.
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
projects / wxWidgets.git / blobdiff