Selector¶
Bases:
pygame_menu.widgets.core.widget.Widget
Selector widget: several items with values and two functions that are executed when changing the selector (left/right) and pressing return button on the selected item.
The values of the selector are like:
values = [('Item1', a, b, c...), ('Item2', d, e, f..)]
The callbacks receive the current text, its index in the list, the associated arguments and all unknown keyword arguments:
onchange((current_text, index), a, b, c..., **kwargs) onreturn((current_text, index), a, b, c..., **kwargs)
Parameters: - title (str) – Selector title
- elements (list) – Elements of the selector
- selector_id (str) – ID of the selector
- default (int) – Index of default element to display
- onchange (callable, None) – Callback when changing the selector
- onreturn (callable, None) – Callback when pressing return on the selector
- kwargs (dict) – Optional keyword arguments
Adds a function to the widget to be executed each time the widget is drawn.
The function that this method receives receives two objects: the widget itself and the menu reference.
import math def draw_update_function(widget, menu): t = widget.get_attribute('t', 0) t += menu.get_clock().get_time() widget.set_padding(10*(1 + math.sin(t)))) # Oscillating padding button = menu.add_button('This button updates its padding', None) button.set_draw_callback(draw_update_function)
After creating a new callback, this functions returns the ID of the call. It can be removed anytime using widget.remove_draw_callback(id).
Parameters: func (callable) – Function Returns: Call ID Return type: str
Adds a function to the widget to be executed each time the widget is updated.
The function that this method receives receives two objects: the widget itself and the menu reference. It is similar to
add_draw_callback
.After creating a new callback, this functions returns the ID of the call. It can be removed anytime using widget.remove_update_callback(id).
Note
Not all widgets are updated, so the provided function may never be executed.
Parameters: func (callable) – Function Returns: Call ID Return type: str
Run
on_return
callback when return event. A callback function receives the following arguments:callback_func(value, *args, *widget._args, **widget._kwargs)
- with:
value
(if something is returned byget_value()
)args
given to this methodargs
of the widgetkwargs
of the widget
Parameters: - args – Extra arguments passed to the callback
- args – any
Returns: None
Apply callbacks on widget draw.
Returns: None
Apply callbacks on widget update.
Returns: None
Run
on_change
callback after change event is triggered. A callback function receives the following arguments:callback_func(value, *args, *widget._args, **widget._kwargs)
- with:
value
(if something is returned byget_value()
)args
given to this methodargs
of the widgetkwargs
of the widget
Parameters: - args – Extra arguments passed to the callback
- args – any
Returns: None
Change widget id.
Parameters: widget_id (str) – Widget ID Returns: None
Draw the widget shape.
Parameters: surface ( pygame.Surface
) – Surface to drawReturns: None
Draw selection effect on widget.
Parameters: surface ( pygame.Surface
) – Surface to drawReturns: None
This can flip the widget either vertically, horizontally, or both. Flipping a widget is non-destructive and does not change the dimensions.
Parameters: Returns: None
Return the widget alignment.
Returns: Widget align, see locals Return type: str
Get attribute value.
Parameters: - key (str) – Key of the attribute
- default (any) – Value if does not exists
Returns: Attribute data
Return type: any
Return a dict with the information of the widget font.
Dict values:
antialias
Font antialias (bool)background_color
Background color (tuple)color
Font color (tuple)name
Name of the font (str)selected_color
Selected color (tuple)size
Size of the font (int)
Returns: Dict Return type: dict
Return the widget ID.
Returns: Widget ID Return type: str
Return the widget margin.
Returns: Widget margin (left, top) Return type: tuple
Return the menu reference (if exists).
Warning
Use with caution.
Returns: Menu reference Return type: pygame_menu.Menu
, None
Return the widget padding.
Returns: Widget padding (top, right, bottom, left) Return type: tuple
Return the Rect object, this forces the widget rendering.
Note
This is the only method that returns the rect with the padding applied. If widget._rect is used, the padding has not been applied.
Parameters: inflate (None, tuple, list) – Inflate rect (x,y) in px Returns: Widget rect Return type: pygame.Rect
Return time the widget has been selected in miliseconds. If the widget is not currently selected, return 0.
Returns: Time in ms Return type: float
Return the selection effect.
Warning
Use with caution.
Returns: Selection effect Return type: pygame_menu.widgets.core.Selection
Return widget surface.
Warning
Use with caution.
Returns: Widget surface Rtype:: pygame.Surface
Return the widget title.
Returns: Widget title Return type: str
Return the current value of the selector at the selected index.
Returns: Value and index as a tuple, (value, index) Return type: tuple
Returns true if widget has the given attribute.
Parameters: key (str) – Key of the attribute Returns: True if exists Return type: bool
Hides widget.
Returns: None
Move selector to left.
Returns: None
Removes the given attribute from the widget. Throws
IndexError
if given key does not exist.Parameters: key (str) – Key of the attribute Returns: None
Removes draw callback from ID.
Parameters: callid (str) – Callback ID Returns: None
Removes update callback from ID.
Parameters: callid (str) – Callback ID Returns: None
Set the widget size to another size. This is a fast scale operation.
Note
This method calls
widget.scale
method; thus, some widgets may not support this transformation.Parameters: Returns: None
Move selector to right.
Returns: None
Unfiltered counterclockwise rotation. The angle argument represents degrees and can be any floating point value. Negative angle amounts will rotate clockwise.
Note
Not all widgets accepts rotation. Also this rotation only affects the text or images, the selection or background is not rotated.
Parameters: angle (int, float) – Rotation angle (degrees 0-360) Returns: None
Scale the widget to a desired width and height factor.
Note
Not all widgets are affected by scale.
Parameters: Returns: None
Set the alignment of the widget.
Parameters: align (str) – Widget align, see locals Returns: None
Set widget attribute.
Parameters: - key (str) – Key of the attribute
- value (any) – Value of the attribute
Returns: None
Set widget background color.
Parameters: - color (tuple, list,
pygame_menu.baseimage.BaseImage
, None) – Widget background color - inflate (tuple, list, None) – Inflate background in x,y. If None, the widget value is not updated
Returns: None
- color (tuple, list,
Enable interfaces to control the widget.
Parameters: Returns: None
Set the text font.
Parameters: - font (str) – Font name (see
pygame.font.match_font
for precise format) - font_size (int) – Size of font in pixels
- color (tuple) – Text color
- selected_color (tuple) – Text color when widget is selected
- background_color (tuple) – Font background color
- antialias (bool) – Determines if antialias is applied to font (uses more processing power)
Returns: None
- font (str) – Font name (see
Set Widget margin (left, top).
Parameters: Returns: None
Set widget max width (column support) if
force_fit_text
is enabled.Parameters: width (int, float, None) – Width in px, None if max width is disabled Returns: None
Set the menu reference.
Parameters: menu ( pygame_menu.Menu
) – Menu objectReturns: None
Set the Widget padding according to CSS rules.
- If an integer or float is provided: top, right, bottom and left values will be the same
- If 2-item tuple is provided: top and bottom takes the first value, left and right the second
- If 3-item tuple is provided: top will take the first value, left and right the second, and bottom the third
- If 4-item tuple is provided: padding will be (top, right, bottom, left)
Note
See CSS W3Schools for more info about padding.
Parameters: padding (int, float, tuple, list) – Can be a single number, or a tuple of 2, 3 or 4 elements following CSS style Returns: None
Set the widget position.
Parameters: Returns: None
Mark the widget as selected.
Parameters: selected (bool) – Set item as selected Returns: None
Set the selection effect handler.
Parameters: selection ( pygame_menu.widgets.core.Selection
) – Selection effect classReturns: None
Show text shadow.
Parameters: Returns: None
Set sound engine to the widget.
Parameters: sound ( pygame_menu.sound.Sound
) – Sound objectReturns: None
Update the widget title.
Parameters: title (str) – New title Returns: None
Set the current value of the widget, selecting the element that matches the text if item is a string, or the index of the position of item is an integer.
For example, if selector is [[‘a’,0],[‘b’,1],[‘a’,2]]:
- widget.set_value(‘a’) -> Widget selects 0 (first match)
- widget.set_value(2) -> Widget selects 2.
Parameters: item (str, int) – Item to select, can be a string or an integer. Returns: None
Set widget visible.
Returns: None
Checks if the widget width/height has changed because events. If so, return true and set the status of the widget (menu widget position needs update) as false. This method is used by
.update()
from Menu class.Returns: True if the widget position has changed by events after the rendering. Return type: bool
Translate to (+x,+y) according to default position.
Note
To revert changes, only set to (0,0).
Parameters: Returns: None
Update internal variable according to the given events list and fire the callbacks.
Parameters: events (list[ pygame.event.Event
]) – List of pygame eventsReturns: True if updated Return type: bool
Update selector elements.
Parameters: elements (Object) – Elements of the selector Returns: None
Updates font. This method receives a style dict (non empty) containing the following keys:
antialias
Font antialias (bool)background_color
Background color (tuple)color
Font color (tuple)name
Name of the font (str)selected_color
Selected color (tuple)size
Size of the font (int)
Note
If a key is not defined it will be rewritten using current font style from
.get_font_info()
method.Parameters: style (dict) – Font style dict Returns: None