wx.lib.docview.DocManager

The DocManager class is part of the document/view framework, and cooperates with the View, Document and DocTemplate classes.

Class Hierarchy

Inheritance diagram for class DocManager:

Known Superclasses

wx.EvtHandler

Methods Summary

__init__	Constructor. Create a document manager instance dynamically near the
ActivateView	Sets the current view.
AddDocument	Adds the document to the list of documents.
AddFileToHistory	Adds a file to the file history list, if we have a pointer to an
AssociateTemplate	Adds the template to the document manager’s template list.
Clear	Closes all currently opened document by callling CloseDocuments
CloseDocument	Closes the specified document.
CloseDocuments	Closes all currently opened documents.
CreateDocument	Creates a new document in a manner determined by the flags parameter,
CreateView	Creates a new view for the given document. If more than one view is
DeleteTemplate	Placeholder, not yet implemented in wxWindows.
Destroy	Destructor.
DisassociateTemplate	Removes the template from the list of templates.
FileHistoryAddFilesToMenu	Appends the files in the history list, to all menus managed by the
FileHistoryLoad	Loads the file history from a config object.
FileHistoryRemoveMenu	Removes the given menu from the list of menus managed by the file
FileHistorySave	Saves the file history into a config object. This must be called
FileHistoryUseMenu	Use this menu for appending recently-visited document filenames, for
FindSuitableParent	Returns a parent frame or dialog, either the frame with the current
FindTemplateForPath	Given a path, try to find template that matches the extension. This is
FlushDoc	Placeholder, not yet implemented in wxWindows.
GetCurrentDocument	Returns the document associated with the currently active view (if any).
GetCurrentView	Returns the currently active view.
GetDocuments	Returns the list of documents.
GetFileHistory	Returns the file history.
GetFlags	Returns the document manager’s flags.
GetHistoryFile	Returns the file at index i from the file history.
GetHistoryFilesCount	Returns the number of files currently stored in the file history.
GetLastActiveView	Returns the last active view. This is used in the SDI framework where dialogs can be mistaken for a view
GetMaxDocsOpen	Returns the number of documents that can be open simultaneously.
GetTemplates	Returns the document manager’s template list.
Initialize	Initializes data; currently just calls OnCreateFileHistory. Some data
MakeDefaultName	Returns a suitable default name. This is implemented by appending an
MakeFrameTitle	Returns a suitable title for a document frame. This is implemented by
MatchTemplate	Placeholder, not yet implemented in wxWindows.
OnCreateFileHistory	A hook to allow a derived class to create a different type of file
OnFileClose	Closes and deletes the currently active document.
OnFileCloseAll	Closes and deletes all the currently opened documents.
OnFileNew	Creates a new document and reads in the selected file.
OnFileOpen	Creates a new document and reads in the selected file.
OnFileRevert	Reverts the current document by calling wxDocument.Save for the current
OnFileSave	Saves the current document by calling Document.Save for
OnFileSaveAs	Calls Document.SaveAs for the current document.
OnOpenFileFailure	Called when there is an error opening a file.
OnPreview	Previews the current document by calling its View’s
OnPrint	Prints the current document by calling its View’s
OnPrintSetup	Presents the print setup dialog.
OnRedo	Issues a Redo command to the current document’s command processor.
OnUndo	Issues an Undo command to the current document’s command processor.
OnUpdateFileClose	Updates the user interface for the File Close command.
OnUpdateFileCloseAll	Updates the user interface for the File Close All command.
OnUpdateFileNew	Updates the user interface for the File New command.
OnUpdateFileOpen	Updates the user interface for the File Open command.
OnUpdateFileRevert	Updates the user interface for the File Revert command.
OnUpdateFileSave	Updates the user interface for the File Save command.
OnUpdateFileSaveAs	Updates the user interface for the File Save As command.
OnUpdatePreview	Updates the user interface for the Print Preview command.
OnUpdatePrint	Updates the user interface for the Print command.
OnUpdatePrintSetup	Updates the user interface for the Print Setup command.
OnUpdateRedo	Updates the user interface for the Redo command.
OnUpdateUndo	Updates the user interface for the Undo command.
ProcessEvent	Processes an event, searching event tables and calling zero or more
ProcessUpdateUIEvent	Processes a UI event, searching event tables and calling zero or more
RemoveDocument	Removes the document from the list of documents.
RemoveFileFromHistory	Removes a file from the file history list, if we have a pointer to an
SelectDocumentPath	Under Windows, pops up a file selector with a list of filters
SelectDocumentType	Returns a document template by asking the user (if there is more than
SelectViewType	Returns a document template by asking the user (if there is
SetMaxDocsOpen	Sets the maximum number of documents that can be open at a time. By

Class API

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class DocManager(wx.EvtHandler)

The DocManager class is part of the document/view framework, and cooperates with the View, Document and DocTemplate classes.

Methods

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__init__(self, flags=DEFAULT_DOCMAN_FLAGS, initialize=True)

Constructor. Create a document manager instance dynamically near the start of your application before doing any document or view operations.

flags is used in the Python version to indicate whether the document manager is in DOC_SDI or DOC_MDI mode.

If initialize is true, the Initialize function will be called to create a default history list object. If you derive from wxDocManager, you may wish to call the base constructor with false, and then call Initialize in your own constructor, to allow your own Initialize or OnCreateFileHistory functions to be called.

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ActivateView(self, view, activate=True, deleting=False)

Sets the current view.

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AddDocument(self, document)

Adds the document to the list of documents.

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AddFileToHistory(self, fileName)

Adds a file to the file history list, if we have a pointer to an appropriate file menu.

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AssociateTemplate(self, docTemplate)

Adds the template to the document manager’s template list.

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Clear(self, force=True)

Closes all currently opened document by callling CloseDocuments and clears the document manager’s templates.

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CloseDocument(self, doc, force=True)

Closes the specified document.

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CloseDocuments(self, force=True)

Closes all currently opened documents.

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CreateDocument(self, path, flags=0)

Creates a new document in a manner determined by the flags parameter, which can be:

wx.lib.docview.DOC_NEW Creates a fresh document. wx.lib.docview.DOC_SILENT Silently loads the given document file.

If wx.lib.docview.DOC_NEW is present, a new document will be created and returned, possibly after asking the user for a template to use if there is more than one document template. If wx.lib.docview.DOC_SILENT is present, a new document will be created and the given file loaded into it. If neither of these flags is present, the user will be presented with a file selector for the file to load, and the template to use will be determined by the extension (Windows) or by popping up a template choice list (other platforms).

If the maximum number of documents has been reached, this function will delete the oldest currently loaded document before creating a new one.

wxPython version supports the document manager’s wx.lib.docview.DOC_OPEN_ONCE and wx.lib.docview.DOC_NO_VIEW flag.

if wx.lib.docview.DOC_OPEN_ONCE is present, trying to open the same file multiple times will just return the same document. if wx.lib.docview.DOC_NO_VIEW is present, opening a file will generate the document, but not generate a corresponding view.

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CreateView(self, doc, flags=0)

Creates a new view for the given document. If more than one view is allowed for the document (by virtue of multiple templates mentioning the same document type), a choice of view is presented to the user.

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DeleteTemplate(self, template, flags)

Placeholder, not yet implemented in wxWindows.

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Destroy(self)

Destructor.

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DisassociateTemplate(self, docTemplate)

Removes the template from the list of templates.

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FileHistoryAddFilesToMenu(self, menu=None)

Appends the files in the history list, to all menus managed by the file history object.

If menu is specified, appends the files in the history list to the given menu only.

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FileHistoryLoad(self, config)

Loads the file history from a config object.

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FileHistoryRemoveMenu(self, menu)

Removes the given menu from the list of menus managed by the file history object.

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FileHistorySave(self, config)

Saves the file history into a config object. This must be called explicitly by the application.

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FileHistoryUseMenu(self, menu)

Use this menu for appending recently-visited document filenames, for convenient access. Calling this function with a valid menu enables the history list functionality.

Note that you can add multiple menus using this function, to be managed by the file history object.

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FindSuitableParent(self)

Returns a parent frame or dialog, either the frame with the current focus or if there is no current focus the application’s top frame.

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FindTemplateForPath(self, path)

Given a path, try to find template that matches the extension. This is only an approximate method of finding a template for creating a document.

Note this wxPython verson looks for and returns a default template if no specific template is found.

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FlushDoc(self, doc)

Placeholder, not yet implemented in wxWindows.

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GetCurrentDocument(self)

Returns the document associated with the currently active view (if any).

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GetCurrentView(self)

Returns the currently active view.

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GetDocuments(self)

Returns the list of documents.

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GetFileHistory(self)

Returns the file history.

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GetFlags(self)

Returns the document manager’s flags.

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GetHistoryFile(self, i)

Returns the file at index i from the file history.

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GetHistoryFilesCount(self)

Returns the number of files currently stored in the file history.

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GetLastActiveView(self)

Returns the last active view. This is used in the SDI framework where dialogs can be mistaken for a view and causes the framework to deactivete the current view. This happens when something like a custom dialog box used to operate on the current view is shown.

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GetMaxDocsOpen(self)

Returns the number of documents that can be open simultaneously.

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GetTemplates(self)

Returns the document manager’s template list.

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Initialize(self)

Initializes data; currently just calls OnCreateFileHistory. Some data cannot always be initialized in the constructor because the programmer must be given the opportunity to override functionality. In fact Initialize is called from the DocManager constructor, but this can be vetoed by passing false to the second argument, allowing the derived class’s constructor to call Initialize, possibly calling a different OnCreateFileHistory from the default.

The bottom line: if you’re not deriving from Initialize, forget it and construct DocManager with no arguments.

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MakeDefaultName(self)

Returns a suitable default name. This is implemented by appending an integer counter to the string “Untitled” and incrementing the counter.

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MakeFrameTitle(self)

Returns a suitable title for a document frame. This is implemented by appending the document name to the application name.

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MatchTemplate(self, path)

Placeholder, not yet implemented in wxWindows.

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OnCreateFileHistory(self)

A hook to allow a derived class to create a different type of file history. Called from Initialize.

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OnFileClose(self, event)

Closes and deletes the currently active document.

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OnFileCloseAll(self, event)

Closes and deletes all the currently opened documents.

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OnFileNew(self, event)

Creates a new document and reads in the selected file.

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OnFileOpen(self, event)

Creates a new document and reads in the selected file.

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OnFileRevert(self, event)

Reverts the current document by calling wxDocument.Save for the current document.

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OnFileSave(self, event)

Saves the current document by calling Document.Save for the current document.

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OnFileSaveAs(self, event)

Calls Document.SaveAs for the current document.

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OnOpenFileFailure(self)

Called when there is an error opening a file.

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OnPreview(self, event)

Previews the current document by calling its View’s OnCreatePrintout method.

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OnPrint(self, event)

Prints the current document by calling its View’s OnCreatePrintout method.

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OnPrintSetup(self, event)

Presents the print setup dialog.

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OnRedo(self, event)

Issues a Redo command to the current document’s command processor.

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OnUndo(self, event)

Issues an Undo command to the current document’s command processor.

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OnUpdateFileClose(self, event)

Updates the user interface for the File Close command.

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OnUpdateFileCloseAll(self, event)

Updates the user interface for the File Close All command.

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OnUpdateFileNew(self, event)

Updates the user interface for the File New command.

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OnUpdateFileOpen(self, event)

Updates the user interface for the File Open command.

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OnUpdateFileRevert(self, event)

Updates the user interface for the File Revert command.

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OnUpdateFileSave(self, event)

Updates the user interface for the File Save command.

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OnUpdateFileSaveAs(self, event)

Updates the user interface for the File Save As command.

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OnUpdatePreview(self, event)

Updates the user interface for the Print Preview command.

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OnUpdatePrint(self, event)

Updates the user interface for the Print command.

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OnUpdatePrintSetup(self, event)

Updates the user interface for the Print Setup command.

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OnUpdateRedo(self, event)

Updates the user interface for the Redo command.

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OnUpdateUndo(self, event)

Updates the user interface for the Undo command.

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ProcessEvent(self, event)

Processes an event, searching event tables and calling zero or more suitable event handler function(s). Note that the ProcessEvent method is called from the wxPython docview framework directly since wxPython does not have a virtual ProcessEvent function.

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ProcessUpdateUIEvent(self, event)

Processes a UI event, searching event tables and calling zero or more suitable event handler function(s).

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RemoveDocument(self, doc)

Removes the document from the list of documents.

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RemoveFileFromHistory(self, i)

Removes a file from the file history list, if we have a pointer to an appropriate file menu.

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SelectDocumentPath(self, templates, flags, save)

Under Windows, pops up a file selector with a list of filters corresponding to document templates. The wxDocTemplate corresponding to the selected file’s extension is returned.

On other platforms, if there is more than one document template a choice list is popped up, followed by a file selector.

This function is used in DocManager.CreateDocument.

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SelectDocumentType(self, temps, sort=False)

Returns a document template by asking the user (if there is more than one template). This function is used in :methW`DocManager.CreateDocument`.

Parameters

templates - list of templates from which to choose a desired template.

sort - If more than one template is passed in in 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.

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SelectViewType(self, temps, sort=False)

Returns a document template by asking the user (if there is more than one template), displaying a list of valid views. This function is used in wxDocManager::CreateView. The dialog normally will not appear because the array of templates only contains those relevant to the document in question, and often there will only be one such.

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SetMaxDocsOpen(self, maxDocsOpen)

Sets the maximum number of documents that can be open at a time. By default, this is 10,000. If you set it to 1, existing documents will be saved and deleted when the user tries to open or create a new one (similar to the behaviour of Windows Write, for example). Allowing multiple documents gives behaviour more akin to MS Word and other Multiple Document Interface applications.