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General

Component Palette Icon:



Description

The Button component is a versatile component, often used for things like opening/closing windows, writing to tags, and triggering any sort of scripting logic. It can be used for showing status, as well. For example, if you have three buttons, Hand, Off, and Auto, not only can they set those modes, but their background color can display the current mode, although you'd be better off using the Multi-State Button for this. 

To get buttons to do things, you add an event handler to the actionPerformed event. While you could configure your script on a mousePressed or mouseClicked event handlers, it is better to use the actionPerformed event. Why? Buttons can also be activated by tabbing over to them and hitting the space key, or they could be activated by pressing Alt and the button's mnemonic character. So, to make sure that your button works in all of these cases, configure your event handler on the actionPerformed event, not the mouseClicked event.

Properties
NameDescriptionProperty TypeScriptingCategory
Background ColorThe background color of the button. Can be chosen from color wheel, chosen from color palette, or entered as RGB or HSL value. See Color Selector. Color.buttonBGAppearance
Border

The border surrounding this component. No Border, Etched (Lowered), Etched (Raised), Bevel (Lowered), Bevel (Raised), Bevel (Double), Button Border, Field Border, Line Border, and Other Border.

The border is unaffected by rotation.

Border.borderCommon
Border Painted?Indicates if the border of this button should be displayed.boolean.borderPaintedAppearance
CursorThe mouse cursor to use when hovering over this component. Options are: Default, Crosshair, Text, Wait, Hand, Move, SW Resize, or SE Resize.int.cursorCodeCommon
Default ButtonIf true, this button will be activated when the user presses Enter on the window.boolean.defaultBtnBehavior
Disabled Image PathThe relative path of the image to be displayed when this component is not enabled.String.disabledPathAppearance
EnabledIf disabled, a component cannot be used.boolean.componentEnabledCommon
Fill Area?Controls whether or not this button's internal area is filled.boolean.contentAreaFilledAppearance
FocusableIf a button is not focusable, you will not be able to interact with it with the keyboard. This means you can't "tab" over to it.boolean.focusableBehavior
FontFont of text on this component.Font.fontAppearance
Foreground ColorThe foreground color of the component. See Color Selector. Color.foregroundAppearance
Horizontal AlignmentThe horizontal alignment of the button's contents (text and/or image).int.horizontalAlignmentLayout
Horizontal Text PositionThe horizontal position of the button's text relative to its image.int.horizontalTextPositionLayout
Icon-Text SpacingThe space (in pixels) between the icon (if any) and the text (if any).int.iconTextGapAppearance
Image PathThe relative path of the image.String.pathAppearance
MarginThe space between a button's text and its borders.Insets.marginLayout
MnemonicA single letter that will activate the button using 'ALT-mnemonic'.String.mnemonicCharBehavior
Mouseover TextThe text that is displayed in the tooltip which pops up on mouseover of this component.String.toolTipTextCommon
NameThe name of this component.String.nameCommon
OpaqueIs this button completely opaque? Most aren't, so this should usually be false.boolean.opaqueCommon
QualityThe data quality code for any bindings on this component.QualityCode.qualityData
RolloverIf true, the button may indicate that the mouse is hovering over it.boolean.rolloverEnabledBehavior
StylesContains the component's styles.Dataset.stylesAppearance
TextText of this component.String.textAppearance
Vertical AlignmentThe vertical alignment of the button's contents (text and/or image).int.verticalAlignmentLayout
Vertical Text PositionThe vertical position of the button's text relative to its image.int.verticalTextPositionLayout
VisibleIf disabled, the component will be hidden.boolean.visibleCommon
Deprecated
Data QualityThe data quality code for any tag bindings on this component.int.dataQualityData
Scripting
Scripting Functions
  • Description

Virtually "clicks" the button, meaning that its actionPerformed event handler will run.

  • Parameters

Nothing

  • Return

Nothing

Extension Functions

This component does not have extension functions associated with it.

Event Handlers

This event occurs when a component that can receive input, such as a text box, receives the input focus. This usually occurs when a user clicks on the component or tabs over to it.

.sourceThe component that fired this event

This event occurs when a component that can receive input, such as a text box, receives the input focus. This usually occurs when a user clicks on the component or tabs over to it.

.source

The component that fired this event.       

.oppositeComponent

The other component involved in this focus change. That is, the component that lost focus in order for this one to gain it, or vise versa.       

This event occurs when a component that had the input focus lost it to another component.

.sourceThe component that fired this event
.oppositeComponentThe other component involved in this focus change. That is, the component that lost focus in order for this one to gain it, or vise versa.       

An integer that indicates whether the state was changed to "Selected" (on) or "Deselected" (off). Compare this to the event object's constants to determine what the new state is.

.source

The component that fired this event.       

.keyCode

The key code for this event. Used with the keyPressed and keyReleased events. See below for the key code constants.       

.keyCharThe character that was typed. Used with the keyTyped event.       
.keyLocation

Returns the location of the key that originated this key event. Some keys occur more than once on a keyboard, e.g. the left and right shift keys. Additionally, some keys occur on the numeric keypad. This provides a way of distinguishing such keys. See the KEY_LOCATION constants, the keyTyped event always has a location of KEY_LOCATION_UNKNOWN.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.    

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.  

Fires when a key is released and the source component has the input focus. Works for all characters, including non-printable ones, such as SHIFT and F3.

.source

The component that fired this event.       

.keyCode

The key code for this event. Used with the keyPressed and keyReleased events. See below for the key code constants.       

.keyCharThe character that was typed. Used with the keyTyped event.       
.keyLocation

Returns the location of the key that originated this key event. Some keys occur more than once on a keyboard, e.g. the left and right shift keys. Additionally, some keys occur on the numeric keypad. This provides a way of distinguishing such keys. See the KEY_LOCATION constants in the documentation, the keyTyped event always has a location of KEY_LOCATION_UNKNOWN.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.    

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.  

Fires when a key is pressed and then released when source component has the input focus. Only works for characters that can be printed on the screen.

.source

The component that fired this event.       

.keyCode

The key code for this event. Used with the keyPressed and keyReleased events. See below for the key code constants.       

.keyCharThe character that was typed. Used with the keyTyped event.       
.keyLocation

Returns the location of the key that originated this key event. Some keys occur more than once on a keyboard, e.g. the left and right shift keys. Additionally, some keys occur on the numeric keypad. This provides a way of distinguishing such keys. See the KEY_LOCATION constants in the documentation, the keyTyped event always has a location of KEY_LOCATION_UNKNOWN.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.    

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.  

This event signifies a mouse click on the source component. A mouse click the combination of a mouse press and a mouse release, both of which must have occurred over the source component. Note that this event fires after the pressed and released events have fired.

.source

The component that fired this event.       

.button

The code for the button that caused this event to fire.       

.clickCount

The number of mouse clicks associated with this event.       

.x

The x-coordinate (with respect to the source component) of this mouse event.       

.y

The y-coordinate (with respect to the source component) of this mouse event.       

.popupTrigger

Returns True (1) if this mouse event is a popup trigger. What constitutes a popup trigger is operating system dependent, which is why this abstraction exists.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.       

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.       

This event fires when the mouse enters the space over the source component.

.source

The component that fired this event.       

.button

The code for the button that caused this event to fire.       

.clickCount

The number of mouse clicks associated with this event.       

.x

The x-coordinate (with respect to the source component) of this mouse event.       

.y

The y-coordinate (with respect to the source component) of this mouse event.       

.popupTrigger

Returns True (1) if this mouse event is a popup trigger. What constitutes a popup trigger is operating system dependent, which is why this abstraction exists.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.       

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.       

  This event fires when the mouse leaves the space over the source component.

.source

The component that fired this event.       

.button

The code for the button that caused this event to fire.       

.clickCount

The number of mouse clicks associated with this event.       

.x

The x-coordinate (with respect to the source component) of this mouse event.       

.y

The y-coordinate (with respect to the source component) of this mouse event.       

.popupTrigger

Returns True (1) if this mouse event is a popup trigger. What constitutes a popup trigger is operating system dependent, which is why this abstraction exists.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.       

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.       

  This event fires when a mouse button is pressed down on the source component.

.source

The component that fired this event.       

.button

The code for the button that caused this event to fire.       

.clickCount

The number of mouse clicks associated with this event.       

.x

The x-coordinate (with respect to the source component) of this mouse event.       

.y

The y-coordinate (with respect to the source component) of this mouse event.       

.popupTrigger

Returns True (1) if this mouse event is a popup trigger. What constitutes a popup trigger is operating system dependent, which is why this abstraction exists.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.       

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.       

This event fires when a mouse button is released, if that mouse button's press happened over this component.

.source

The component that fired this event.       

.button

The code for the button that caused this event to fire.       

.clickCount

The number of mouse clicks associated with this event.       

.x

The x-coordinate (with respect to the source component) of this mouse event.       

.y

The y-coordinate (with respect to the source component) of this mouse event.       

.popupTrigger

Returns True (1) if this mouse event is a popup trigger. What constitutes a popup trigger is operating system dependent, which is why this abstraction exists.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.       

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.       

Fires when the mouse moves over a component after a button has been pushed.

.source

The component that fired this event.       

.button

The code for the button that caused this event to fire.       

.clickCount

The number of mouse clicks associated with this event.       

.x

The x-coordinate (with respect to the source component) of this mouse event.       

.y

The y-coordinate (with respect to the source component) of this mouse event.       

.popupTrigger

Returns True (1) if this mouse event is a popup trigger. What constitutes a popup trigger is operating system dependent, which is why this abstraction exists.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.       

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.       

Fires when the mouse moves over a component, but no buttons are pushed.


.source

The component that fired this event.       

.button

The code for the button that caused this event to fire.       

.clickCount

The number of mouse clicks associated with this event.       

.x

The x-coordinate (with respect to the source component) of this mouse event.       

.y

The y-coordinate (with respect to the source component) of this mouse event.       

.popupTrigger

Returns True (1) if this mouse event is a popup trigger. What constitutes a popup trigger is operating system dependent, which is why this abstraction exists.       

.altDown

True (1) if the Alt key was held down during this event, false (0) otherwise.       

.controlDown

True (1) if the Control key was held down during this event, false (0) otherwise.       

.shiftDown

True (1) if the Shift key was held down during this event, false (0) otherwise.       

Fires whenever a bindable property of the source component changes. This works for standard and custom (dynamic) properties.

.sourceThe component that fired this event.  
.newValueThe new value that this property changed to.
.oldValueThe value that this property was before it changed.
.propertyName

The name of the property that changed.

Remember to always filter out these events for the property that you are looking for! Components often have many properties that change.

Examples
Styled Button

Property NameValue
BorderEtched (Raised)
FontDialog, Bold, 18
TextPress Me!
Image PathBuiltin/icons/48/check2.png
Styled Button

Property NameValue
BorderNo Border
Fill Area?False
Border Painted?False
TextNone
Image PathBuiltin/icons/48/stop.png
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