draftutils.todo.ToDo Class Reference

Static Public Member Functions
def	delay (f, arg)
def	delayAfter (f, arg)
def	delayCommit (cl)
def	doTasks ()

Static Public Attributes
list	afteritinerary = []
list	commitlist = []
list	itinerary = []

Detailed Description

A static class that delays execution of functions.

It calls `QtCore.QTimer.singleShot(0, doTasks)`
where `doTasks` is a static method which executes
the commands stored in the list attributes.

Attributes
----------
itinerary: list of tuples
    Each tuple is of the form `(name, arg)`.
    The `name` is a reference (pointer) to a function,
    and `arg` is the corresponding argument that is passed
    to that function.
    It then tries executing the function with the argument,
    if available, or without it, if not available.
    ::
        name(arg)
        name()

commitlist: list of tuples
    Each tuple is of the form `(name, command_list)`.
    The `name` is a string identifier or description of the commands
    that will be run, and `command_list` is a list of strings
    that indicate the Python instructions that will be executed,
    or a reference to a single function that will be executed.

    If `command_list` is a list, the program opens a transaction,
    then runs all commands in the list in sequence,
    and finally commits the transaction.
    ::
        command_list = ["command1", "command2", "..."]
        App.activeDocument().openTransaction(name)
        Gui.doCommand("command1")
        Gui.doCommand("command2")
        Gui.doCommand("...")
        App.activeDocument().commitTransaction()

    If `command_list` is a reference to a function
    the function is executed directly.
    ::
        command_list = function
        App.activeDocument().openTransaction(name)
        function()
        App.activeDocument().commitTransaction()

afteritinerary: list of tuples
    Each tuple is of the form `(name, arg)`.
    This list is used just like `itinerary`.

Lists
-----
The lists contain tuples. Each tuple contains a `name` which is just
a string to identify the operation, and a `command_list` which is
a list of strings, each string an individual Python instruction.

Member Function Documentation

delay()

def draftutils.todo.ToDo.delay (   f,   arg  )

static

Add the function and argument to the itinerary list.

Schedule geometry manipulation that would crash Coin if done
in the event callback.

If the `itinerary` list is empty, it will call
`QtCore.QTimer.singleShot(0, ToDo.doTasks)`
to execute the commands in the other lists.

Finally, it will build the tuple `(f, arg)`
and append it to the `itinerary` list.

Parameters
----------
f: function reference
    A reference (pointer) to a Python command
    which can be executed directly.
    ::
        f()

arg: argument reference
    A reference (pointer) to the argument to the `f` function.
    ::
        f(arg)

delayAfter()

def draftutils.todo.ToDo.delayAfter (   f,   arg  )

static

Add the function and argument to the afteritinerary list.

Schedule geometry manipulation that would crash Coin if done
in the event callback.

Works the same as `delay`.

If the `afteritinerary` list is empty, it will call
`QtCore.QTimer.singleShot(0, ToDo.doTasks)`
to execute the commands in the other lists.

Finally, it will build the tuple `(f, arg)`
and append it to the `afteritinerary` list.

delayCommit()

def draftutils.todo.ToDo.delayCommit (   cl )

static

Execute the other lists, and add to the commit list.

Schedule geometry manipulation that would crash Coin if done
in the event callback.

First it calls
`QtCore.QTimer.singleShot(0, ToDo.doTasks)`
to execute the commands in all lists.

Then the `cl` list is assigned as the new commit list.

Parameters
----------
cl: list of tuples
    Each tuple is of the form `(name, command_list)`.
    The `name` is a string identifier or description of the commands
    that will be run, and `command_list` is a list of strings
    that indicate the Python instructions that will be executed.

    See the attributes of the `ToDo` class for more information.

doTasks()

def draftutils.todo.ToDo.doTasks ( )

static

Execute the commands stored in the lists.

The lists are `itinerary`, `commitlist` and `afteritinerary`.

Member Data Documentation

afteritinerary

list draftutils.todo.ToDo.afteritinerary = []

static

commitlist

list draftutils.todo.ToDo.commitlist = []

static

itinerary

list draftutils.todo.ToDo.itinerary = []

static

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The documentation for this class was generated from the following file:

• FreeCAD/src/Mod/Draft/draftutils/todo.py