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authorFred Drake <fdrake@acm.org>1998-02-18 17:19:11 (GMT)
committerFred Drake <fdrake@acm.org>1998-02-18 17:19:11 (GMT)
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Separate Mac user interface modules into separate files, to better support
bookmarkable module sections in the HTML.
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diff --git a/Doc/libmacui.tex b/Doc/libmacui.tex
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@@ -53,354 +53,3 @@ crashes. Also, all dialogs are modeless and hence expect to be at the
top of the stacking order. This is true when the dialogs are created,
but windows that pop-up later (like a console window) may also result
in crashes.
-
-
-\section{Standard Module \sectcode{FrameWork}}
-\stmodindex{FrameWork}
-\label{module-FrameWork}
-
-The \code{FrameWork} module contains classes that together provide a
-framework for an interactive Macintosh application. The programmer
-builds an application by creating subclasses that override various
-methods of the bases classes, thereby implementing the functionality
-wanted. Overriding functionality can often be done on various
-different levels, i.e. to handle clicks in a single dialog window in a
-non-standard way it is not necessary to override the complete event
-handling.
-
-The \code{FrameWork} is still very much work-in-progress, and the
-documentation describes only the most important functionality, and not
-in the most logical manner at that. Examine the source or the examples
-for more details.
-
-The \code{FrameWork} module defines the following functions:
-
-\setindexsubitem{(in module FrameWork)}
-
-\begin{funcdesc}{Application}{}
-An object representing the complete application. See below for a
-description of the methods. The default \code{__init__} routine
-creates an empty window dictionary and a menu bar with an apple menu.
-\end{funcdesc}
-
-\begin{funcdesc}{MenuBar}{}
-An object representing the menubar. This object is usually not created
-by the user.
-\end{funcdesc}
-
-\begin{funcdesc}{Menu}{bar\, title\optional{\, after}}
-An object representing a menu. Upon creation you pass the
-\code{MenuBar} the menu appears in, the \var{title} string and a
-position (1-based) \var{after} where the menu should appear (default:
-at the end).
-\end{funcdesc}
-
-\begin{funcdesc}{MenuItem}{menu\, title\optional{\, shortcut\, callback}}
-Create a menu item object. The arguments are the menu to crate the
-item it, the item title string and optionally the keyboard shortcut
-and a callback routine. The callback is called with the arguments
-menu-id, item number within menu (1-based), current front window and
-the event record.
-
-In stead of a callable object the callback can also be a string. In
-this case menu selection causes the lookup of a method in the topmost
-window and the application. The method name is the callback string
-with \code{'domenu_'} prepended.
-
-Calling the \code{MenuBar} \code{fixmenudimstate} method sets the
-correct dimming for all menu items based on the current front window.
-\end{funcdesc}
-
-\begin{funcdesc}{Separator}{menu}
-Add a separator to the end of a menu.
-\end{funcdesc}
-
-\begin{funcdesc}{SubMenu}{menu\, label}
-Create a submenu named \var{label} under menu \var{menu}. The menu
-object is returned.
-\end{funcdesc}
-
-\begin{funcdesc}{Window}{parent}
-Creates a (modeless) window. \var{Parent} is the application object to
-which the window belongs. The window is not displayed until later.
-\end{funcdesc}
-
-\begin{funcdesc}{DialogWindow}{parent}
-Creates a modeless dialog window.
-\end{funcdesc}
-
-\begin{funcdesc}{windowbounds}{width\, height}
-Return a \code{(left, top, right, bottom)} tuple suitable for creation
-of a window of given width and height. The window will be staggered
-with respect to previous windows, and an attempt is made to keep the
-whole window on-screen. The window will however always be exact the
-size given, so parts may be offscreen.
-\end{funcdesc}
-
-\begin{funcdesc}{setwatchcursor}{}
-Set the mouse cursor to a watch.
-\end{funcdesc}
-
-\begin{funcdesc}{setarrowcursor}{}
-Set the mouse cursor to an arrow.
-\end{funcdesc}
-
-\subsection{Application objects}
-Application objects have the following methods, among others:
-
-\setindexsubitem{(Application method)}
-
-\begin{funcdesc}{makeusermenus}{}
-Override this method if you need menus in your application. Append the
-menus to \code{self.menubar}.
-\end{funcdesc}
-
-\begin{funcdesc}{getabouttext}{}
-Override this method to return a text string describing your
-application. Alternatively, override the \code{do_about} method for
-more elaborate about messages.
-\end{funcdesc}
-
-\begin{funcdesc}{mainloop}{\optional{mask\, wait}}
-This routine is the main event loop, call it to set your application
-rolling. \var{Mask} is the mask of events you want to handle,
-\var{wait} is the number of ticks you want to leave to other
-concurrent application (default 0, which is probably not a good
-idea). While raising \code{self} to exit the mainloop is still
-supported it is not recommended, call \code{self._quit} instead.
-
-The event loop is split into many small parts, each of which can be
-overridden. The default methods take care of dispatching events to
-windows and dialogs, handling drags and resizes, Apple Events, events
-for non-FrameWork windows, etc.
-
-In general, all event handlers should return 1 if the event is fully
-handled and 0 otherwise (because the front window was not a FrameWork
-window, for instance). This is needed so that update events and such
-can be passed on to other windows like the Sioux console window.
-Calling \code{MacOS.HandleEvent} is not allowed within \var{our_dispatch}
-or its callees, since this may result in an infinite loop if the
-code is called through the python inner-loop event handler.
-\end{funcdesc}
-
-\begin{funcdesc}{asyncevents}{onoff}
-Call this method with a nonzero parameter to enable
-asynchronous event handling. This will tell the inner interpreter loop
-to call the application event handler \var{async_dispatch} whenever events
-are available. This will cause FrameWork window updates and the user
-interface to remain working during long computations, but will slow the
-interpreter down and may cause surprising results in non-reentrant code
-(such as FrameWork itself). By default \var{async_dispatch} will immedeately
-call \var{our_dispatch} but you may override this to handle only certain
-events asynchronously. Events you do not handle will be passed to Sioux
-and such.
-
-The old on/off value is returned.
-\end{funcdesc}
-
-\begin{funcdesc}{_quit}{}
-Terminate the event \code{mainloop} at the next convenient moment.
-\end{funcdesc}
-
-\begin{funcdesc}{do_char}{c\, event}
-The user typed character \var{c}. The complete details of the event
-can be found in the \var{event} structure. This method can also be
-provided in a \code{Window} object, which overrides the
-application-wide handler if the window is frontmost.
-\end{funcdesc}
-
-\begin{funcdesc}{do_dialogevent}{event}
-Called early in the event loop to handle modeless dialog events. The
-default method simply dispatches the event to the relevant dialog (not
-through the the \code{DialogWindow} object involved). Override if you
-need special handling of dialog events (keyboard shortcuts, etc).
-\end{funcdesc}
-
-\begin{funcdesc}{idle}{event}
-Called by the main event loop when no events are available. The
-null-event is passed (so you can look at mouse position, etc).
-\end{funcdesc}
-
-\subsection{Window Objects}
-
-Window objects have the following methods, among others:
-
-\setindexsubitem{(Window method)}
-
-\begin{funcdesc}{open}{}
-Override this method to open a window. Store the MacOS window-id in
-\code{self.wid} and call \code{self.do_postopen} to register the
-window with the parent application.
-\end{funcdesc}
-
-\begin{funcdesc}{close}{}
-Override this method to do any special processing on window
-close. Call \code{self.do_postclose} to cleanup the parent state.
-\end{funcdesc}
-
-\begin{funcdesc}{do_postresize}{width\, height\, macoswindowid}
-Called after the window is resized. Override if more needs to be done
-than calling \code{InvalRect}.
-\end{funcdesc}
-
-\begin{funcdesc}{do_contentclick}{local\, modifiers\, event}
-The user clicked in the content part of a window. The arguments are
-the coordinates (window-relative), the key modifiers and the raw
-event.
-\end{funcdesc}
-
-\begin{funcdesc}{do_update}{macoswindowid\, event}
-An update event for the window was received. Redraw the window.
-\end{funcdesc}
-
-\begin{funcdesc}{do_activate}{activate\, event}
-The window was activated (\code{activate==1}) or deactivated
-(\code{activate==0}). Handle things like focus highlighting, etc.
-\end{funcdesc}
-
-\subsection{ControlsWindow Object}
-
-ControlsWindow objects have the following methods besides those of
-\code{Window} objects:
-
-\setindexsubitem{(ControlsWindow method)}
-
-\begin{funcdesc}{do_controlhit}{window\, control\, pcode\, event}
-Part \code{pcode} of control \code{control} was hit by the
-user. Tracking and such has already been taken care of.
-\end{funcdesc}
-
-\subsection{ScrolledWindow Object}
-
-ScrolledWindow objects are ControlsWindow objects with the following
-extra methods:
-
-\setindexsubitem{(ScrolledWindow method)}
-
-\begin{funcdesc}{scrollbars}{\optional{wantx\, wanty}}
-Create (or destroy) horizontal and vertical scrollbars. The arguments
-specify which you want (default: both). The scrollbars always have
-minimum \code{0} and maximum \code{32767}.
-\end{funcdesc}
-
-\begin{funcdesc}{getscrollbarvalues}{}
-You must supply this method. It should return a tuple \code{x, y}
-giving the current position of the scrollbars (between \code{0} and
-\code{32767}). You can return \code{None} for either to indicate the
-whole document is visible in that direction.
-\end{funcdesc}
-
-\begin{funcdesc}{updatescrollbars}{}
-Call this method when the document has changed. It will call
-\code{getscrollbarvalues} and update the scrollbars.
-\end{funcdesc}
-
-\begin{funcdesc}{scrollbar_callback}{which\, what\, value}
-Supplied by you and called after user interaction. \code{Which} will
-be \code{'x'} or \code{'y'}, \code{what} will be \code{'-'},
-\code{'--'}, \code{'set'}, \code{'++'} or \code{'+'}. For
-\code{'set'}, \code{value} will contain the new scrollbar position.
-\end{funcdesc}
-
-\begin{funcdesc}{scalebarvalues}{absmin\, absmax\, curmin\, curmax}
-Auxiliary method to help you calculate values to return from
-\code{getscrollbarvalues}. You pass document minimum and maximum value
-and topmost (leftmost) and bottommost (rightmost) visible values and
-it returns the correct number or \code{None}.
-\end{funcdesc}
-
-\begin{funcdesc}{do_activate}{onoff\, event}
-Takes care of dimming/highlighting scrollbars when a window becomes
-frontmost vv. If you override this method call this one at the end of
-your method.
-\end{funcdesc}
-
-\begin{funcdesc}{do_postresize}{width\, height\, window}
-Moves scrollbars to the correct position. Call this method initially
-if you override it.
-\end{funcdesc}
-
-\begin{funcdesc}{do_controlhit}{window\, control\, pcode\, event}
-Handles scrollbar interaction. If you override it call this method
-first, a nonzero return value indicates the hit was in the scrollbars
-and has been handled.
-\end{funcdesc}
-
-\subsection{DialogWindow Objects}
-
-DialogWindow objects have the following methods besides those of
-\code{Window} objects:
-
-\setindexsubitem{(DialogWindow method)}
-
-\begin{funcdesc}{open}{resid}
-Create the dialog window, from the DLOG resource with id
-\var{resid}. The dialog object is stored in \code{self.wid}.
-\end{funcdesc}
-
-\begin{funcdesc}{do_itemhit}{item\, event}
-Item number \var{item} was hit. You are responsible for redrawing
-toggle buttons, etc.
-\end{funcdesc}
-
-\section{Standard Module \sectcode{MiniAEFrame}}
-\stmodindex{MiniAEFrame}
-\label{module-MiniAEFrame}
-
-The module \var{MiniAEFrame} provides a framework for an application
-that can function as an OSA server, i.e. receive and process
-AppleEvents. It can be used in conjunction with \var{FrameWork} or
-standalone.
-
-This module is temporary, it will eventually be replaced by a module
-that handles argument names better and possibly automates making your
-application scriptable.
-
-The \var{MiniAEFrame} module defines the following classes:
-
-\setindexsubitem{(in module MiniAEFrame)}
-
-\begin{funcdesc}{AEServer}{}
-A class that handles AppleEvent dispatch. Your application should
-subclass this class together with either
-\code{MiniAEFrame.MiniApplication} or
-\code{FrameWork.Application}. Your \code{__init__} method should call
-the \code{__init__} method for both classes.
-\end{funcdesc}
-
-\begin{funcdesc}{MiniApplication}{}
-A class that is more or less compatible with
-\code{FrameWork.Application} but with less functionality. Its
-eventloop supports the apple menu, command-dot and AppleEvents, other
-events are passed on to the Python interpreter and/or Sioux.
-Useful if your application wants to use \code{AEServer} but does not
-provide its own windows, etc.
-\end{funcdesc}
-
-\subsection{AEServer Objects}
-
-\setindexsubitem{(AEServer method)}
-
-\begin{funcdesc}{installaehandler}{classe\, type\, callback}
-Installs an AppleEvent handler. \code{Classe} and \code{type} are the
-four-char OSA Class and Type designators, \code{'****'} wildcards are
-allowed. When a matching AppleEvent is received the parameters are
-decoded and your callback is invoked.
-\end{funcdesc}
-
-\begin{funcdesc}{callback}{_object\, **kwargs}
-Your callback is called with the OSA Direct Object as first positional
-parameter. The other parameters are passed as keyword arguments, with
-the 4-char designator as name. Three extra keyword parameters are
-passed: \code{_class} and \code{_type} are the Class and Type
-designators and \code{_attributes} is a dictionary with the AppleEvent
-attributes.
-
-The return value of your method is packed with
-\code{aetools.packevent} and sent as reply.
-\end{funcdesc}
-
-Note that there are some serious problems with the current
-design. AppleEvents which have non-identifier 4-char designators for
-arguments are not implementable, and it is not possible to return an
-error to the originator. This will be addressed in a future release.