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Label functions

class Label

The Label widget is a non-interactive string of text.

Example (OpenSesame script):

widget 0 0 1 1 label text='My text'

Example (Python):

form = Form()
label = Label(text='My text')
form.set_widget(label, (0,0))
form._exec()

function Label.__init__(form, text=u'label', frame=False, center=True)

Constructor to create a new Label object. You do not generally call this constructor directly, but use the Label() factory function, which is described here: /python/common/.

Arguments:

  • form -- The parent form.
    • Type: form

Keywords:

  • text -- The label text.
    • Type: str, unicode
    • Default: 'label'
  • frame -- Indicates whether a frame should be drawn around the widget.
    • Type: bool
    • Default: False
  • center -- Indicates whether the text should be centerd.
    • Type: bool
    • Default: True

function Label._init_canvas_elements()

Initializes all canvas elements.

function Label._update()

Draws the widget.

function Label._update_frame(rect=None, style=u'normal')

Draws a simple frame around the widget.

Keywords:

  • rect -- A (left, top, width, height) tuple for the frame geometry or None to use the widget geometry.
    • Type: tuple, NoneType
    • Default: None
  • style -- A visual style. Should be 'normal', 'active', or 'light'.
    • Type: str, unicode
    • Default: 'normal'

function Label._update_text(text)

Draws text inside the widget.

Arguments:

  • text -- The text to draw.
    • Type: str, unicode

function Label.coroutine()

Implements the interaction. This can be overridden to implement more complicated keyboard/ mouse interactions.

function Label.on_key_press(key)

Is called whenever the widget is focused and the users enters a key.

Arguments:

  • key -- A key
    • Type: str

function Label.on_mouse_click(pos)

Is called whenever the user clicks on the widget.

Arguments:

  • pos -- An (x, y) coordinates tuple.
    • Type: tuple

function Label.set_rect(rect)

Sets the widget geometry.

Arguments:

  • rect -- A (left, top, width, height) tuple.
    • Type: tuple

function Label.set_var(val, var=None)

Sets an experimental variable.

Arguments:

  • val -- A value.

Keywords:

  • var -- A variable name, or None to use widget default.
    • Type: str, unicode, NoneType
    • Default: None
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