Button
继承： BaseButton < Control < CanvasItem < Node < Object
派生： CheckBox, CheckButton, ColorPickerButton, MenuButton, OptionButton
A themed button that can contain text and an icon.
描述
Button is the standard themed button. It can contain text and an icon, and it will display them according to the current Theme.
Example of creating a button and assigning an action when pressed by code:
func _ready():
var button = Button.new()
button.text = "Click me"
button.pressed.connect(self._button_pressed)
add_child(button)
func _button_pressed():
print("Hello world!")
public override void _Ready()
{
var button = new Button();
button.Text = "Click me";
button.Pressed += ButtonPressed;
AddChild(button);
}
private void ButtonPressed()
{
GD.Print("Hello world!");
}
See also BaseButton which contains common properties and methods associated with this node.
Note: Buttons do not interpret touch input and therefore don't support multitouch, since mouse emulation can only press one button at a given time. Use TouchScreenButton for buttons that trigger gameplay movement or actions.
属性
主题属性
属性说明
HorizontalAlignment alignment = 1
voidset_text_alignment ( value: HorizontalAlignment )- HorizontalAlignment get_text_alignment ( )
Text alignment policy for the button's text, use one of the HorizontalAlignment constants.
AutowrapMode autowrap_mode = 0
voidset_autowrap_mode ( value: AutowrapMode )- AutowrapMode get_autowrap_mode ( )
If set to something other than TextServer.AUTOWRAP_OFF, the text gets wrapped inside the node's bounding rectangle.
bool clip_text = false
When this property is enabled, text that is too large to fit the button is clipped, when disabled the Button will always be wide enough to hold the text.
bool expand_icon = false
When enabled, the button's icon will expand/shrink to fit the button's size while keeping its aspect. See also icon_max_width.
bool flat = false
Flat buttons don't display decoration.
Texture2D icon
Button's icon, if text is present the icon will be placed before the text.
To edit margin and spacing of the icon, use h_separation theme property and content_margin_* properties of the used StyleBox es.
HorizontalAlignment icon_alignment = 0
voidset_icon_alignment ( value: HorizontalAlignment )- HorizontalAlignment get_icon_alignment ( )
Specifies if the icon should be aligned horizontally to the left, right, or center of a button. Uses the same HorizontalAlignment constants as the text alignment. If centered horizontally and vertically, text will draw on top of the icon.
String language = ""
Language code used for line-breaking and text shaping algorithms, if left empty current locale is used instead.
String text = ""
The button's text that will be displayed inside the button's area.
TextDirection text_direction = 0
voidset_text_direction ( value: TextDirection )- TextDirection get_text_direction ( )
Base text writing direction.
OverrunBehavior text_overrun_behavior = 0
voidset_text_overrun_behavior ( value: OverrunBehavior )- OverrunBehavior get_text_overrun_behavior ( )
Sets the clipping behavior when the text exceeds the node's bounding rectangle. See OverrunBehavior for a description of all modes.
VerticalAlignment vertical_icon_alignment = 1
voidset_vertical_icon_alignment ( value: VerticalAlignment )- VerticalAlignment get_vertical_icon_alignment ( )
Specifies if the icon should be aligned vertically to the top, bottom, or center of a button. Uses the same VerticalAlignment constants as the text alignment. If centered horizontally and vertically, text will draw on top of the icon.
主题属性说明
Color font_color = Color(0.875, 0.875, 0.875, 1)
Default text Color of the Button.
Color font_disabled_color = Color(0.875, 0.875, 0.875, 0.5)
Text Color used when the Button is disabled.
Color font_focus_color = Color(0.95, 0.95, 0.95, 1)
Text Color used when the Button is focused. Only replaces the normal text color of the button. Disabled, hovered, and pressed states take precedence over this color.
Color font_hover_color = Color(0.95, 0.95, 0.95, 1)
Text Color used when the Button is being hovered.
Color font_hover_pressed_color = Color(1, 1, 1, 1)
Text Color used when the Button is being hovered and pressed.
Color font_outline_color = Color(0, 0, 0, 1)
The tint of text outline of the Button.
Color font_pressed_color = Color(1, 1, 1, 1)
Text Color used when the Button is being pressed.
Color icon_disabled_color = Color(1, 1, 1, 0.4)
Icon modulate Color used when the Button is disabled.
Color icon_focus_color = Color(1, 1, 1, 1)
Icon modulate Color used when the Button is focused. Only replaces the normal modulate color of the button. Disabled, hovered, and pressed states take precedence over this color.
Color icon_hover_color = Color(1, 1, 1, 1)
Icon modulate Color used when the Button is being hovered.
Color icon_hover_pressed_color = Color(1, 1, 1, 1)
Icon modulate Color used when the Button is being hovered and pressed.
Color icon_normal_color = Color(1, 1, 1, 1)
Default icon modulate Color of the Button.
Color icon_pressed_color = Color(1, 1, 1, 1)
Icon modulate Color used when the Button is being pressed.
int align_to_largest_stylebox = 0
This constant acts as a boolean. If true, the minimum size of the button and text/icon alignment is always based on the largest stylebox margins, otherwise it's based on the current button state stylebox margins.
int h_separation = 4
The horizontal space between Button's icon and text. Negative values will be treated as 0 when used.
int icon_max_width = 0
The maximum allowed width of the Button's icon. This limit is applied on top of the default size of the icon, or its expanded size if expand_icon is true. The height is adjusted according to the icon's ratio. If the button has additional icons (e.g. CheckBox), they will also be limited.
int outline_size = 0
The size of the text outline.
Note: If using a font with FontFile.multichannel_signed_distance_field enabled, its FontFile.msdf_pixel_range must be set to at least twice the value of outline_size for outline rendering to look correct. Otherwise, the outline may appear to be cut off earlier than intended.
Font font
Font of the Button's text.
int font_size
Font size of the Button's text.
Texture2D icon
Default icon for the Button. Appears only if icon is not assigned.
StyleBox disabled
StyleBox used when the Button is disabled.
StyleBox disabled_mirrored
StyleBox used when the Button is disabled (for right-to-left layouts).
StyleBox focus
StyleBox used when the Button is focused. The focus StyleBox is displayed over the base StyleBox, so a partially transparent StyleBox should be used to ensure the base StyleBox remains visible. A StyleBox that represents an outline or an underline works well for this purpose. To disable the focus visual effect, assign a StyleBoxEmpty resource. Note that disabling the focus visual effect will harm keyboard/controller navigation usability, so this is not recommended for accessibility reasons.
StyleBox hover
StyleBox used when the Button is being hovered.
StyleBox hover_mirrored
StyleBox used when the Button is being hovered (for right-to-left layouts).
StyleBox hover_pressed
StyleBox used when the Button is being pressed and hovered at the same time.
StyleBox hover_pressed_mirrored
StyleBox used when the Button is being pressed and hovered at the same time (for right-to-left layouts).
StyleBox normal
Default StyleBox for the Button.
StyleBox normal_mirrored
Default StyleBox for the Button (for right-to-left layouts).
StyleBox pressed
StyleBox used when the Button is being pressed.
StyleBox pressed_mirrored
StyleBox used when the Button is being pressed (for right-to-left layouts).
本方法通常需要用户覆盖才能生效。
本方法无副作用，不会修改该实例的任何成员变量。
本方法除了能接受在此处描述的参数外，还能够继续接受任意数量的参数。
本方法用于构造某个类型。
调用本方法无需实例，可直接使用类名进行调用。
本方法描述的是使用本类型作为左操作数的有效运算符。
这个值是由下列位标志构成位掩码的整数。
无返回值。