Button

Button

Creates a clickable pushbutton with a text label.

Constructor

# new Button(parent, x, y, label, defaultHandler)

Constructor
Parameters:
Name Type Description
parent HTMLElement The element to add this button to.
x number The x position of the button. Default 0.
y number The y position of the button. Default 0.
label string The text label of the button. Default empty string.
defaultHandler function A function that will handle the "click" event.
Source:
Example 
const panel = new Panel(document.body, 20, 20, 200, 200);
new Button(panel, 20, 20, "Click me", event => console.log("clicked!"));

Extends

Classes

Button

Members

# (static) height

Default height of all Buttons.
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# (static) width

Default width of all Buttons.
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# enabled

Sets and gets whether or not this component is enabled. Non-enabled components will be faded out and not respond to events.
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# height

Sets and gets the height of this component.
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# label

Sets and gets the text shown in the button's label.
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# width

Sets and gets the width of this component.
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# x

Sets and gets the x position of this component.
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# y

Sets and gets the y position of this component.
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Methods

# addHandler(handler)

Adds a handler function for the "click" event on this button.
Parameters:
Name Type Description
handler function A function that will handle the "click" event.
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Returns:
This instance, suitable for chaining.

# getEnabled()

Gets whether the component is enabled.
Overrides:
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Returns:
Whether or not the component is enabled.

# getHeight()

Gets the height of the component.
Overrides:
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Returns:
The height of the component.

# getLabel()

Gets the label of this button.
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Returns:
The text of the label.

# getWidth()

Gets the width of the component.
Overrides:
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Returns:
The width of the component.

# getX()

Gets the x position of the component.
Overrides:
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Returns:
The x position of the component.

# getY()

Gets the y position of the component.
Overrides:
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Returns:
The y position of the component.

# move(x, y)

Moves the component to a specified position.
Parameters:
Name Type Description
x number The new x position of the component.
y number The new y position of the component.
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Returns:
This instance, suitable for chaining.

# rotate(rad)

Rotates the component.
Parameters:
Name Type Description
rad number The number of radians to rotate the component by.
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Returns:
This instance, suitable for chaining.

# rotateDeg(deg)

Rotates the component.
Parameters:
Name Type Description
deg number The number of degrees to rotate the component by.
Overrides:
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Returns:
This instance, suitable for chaining.

# setEnabled(enabled)

Sets the enabled state of this component.
Parameters:
Name Type Description
enabled boolean Whether or not the component will be enabled.
Overrides:
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Returns:
This instance, suitable for chaining.

# setHeight(height)

Sets the height of this component.
Parameters:
Name Type Description
height number The height of this component.
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Returns:
This instance, suitable for chaining.

# setLabel(label)

Sets the label of this button.
Parameters:
Name Type Description
label string The label to set on this button.
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Returns:
this instance, suitable for chaining.

# setSize(w, h)

Sizes the component.
Parameters:
Name Type Description
w number The new width of the component.
h number The new height of the component.
Overrides:
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Returns:
This instance, suitable for chaining.

# setWidth(width)

Sets the width of this component.
Parameters:
Name Type Description
width number The width of this component.
Overrides:
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Returns:
This instance, suitable for chaining.

# setX(x)

Sets the x position of this component.
Parameters:
Name Type Description
x number The x position of this component.
Overrides:
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Returns:
This instance, suitable for chaining.

# setY(y)

Sets the y position of this component.
Parameters:
Name Type Description
y number The y position of this component.
Overrides:
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Returns:
this instance, suitable for chaining.