slint/docs/widgets.md
Jared Moulton 63fd204dda Update the Flickable and ScrollView docs...
...to include mention that the default is for the viewport dimensions to
be calculated automatically and add properties and and an example to the
Flickable docs
2021-12-06 11:59:09 +01:00

10 KiB

Widgets

Widgets are not imported by default, and need to be imported from "sixtyfps_widgets.60"

Their appearance can change depending on the style

Button

Properties

  • text (string): The text written in the button.
  • icon (image): The image to show in the button. Note that not all styles support drawing icons.
  • pressed: (bool): Set to true when the button is pressed.
  • enabled: (bool): Defaults to true. When false, the button cannot be pressed

Callbacks

  • clicked

Example

import { Button } from "sixtyfps_widgets.60";
Example := Window {
    Button {
        width: parent.width;
        height: parent.height;
        text: "Click Me";
        clicked => { self.text = "Clicked"; }
    }
}

StandardButton

The StandardButton looks like a button, but instead of customizing with text and icon, it can used one of the pre-defined kind and the text and icon will depend on the style.

Properties

  • kind (enum): The kind of button, one of ok cancel, apply, close, reset, help, yes, no, abort, retry or ignore
  • enabled: (bool): Defaults to true. When false, the button cannot be pressed

Callbacks

  • clicked

Example

import { StandardButton, VerticalBox } from "sixtyfps_widgets.60";
Example := Window {
  VerticalBox {
    StandardButton { kind: ok; }
    StandardButton { kind: apply; }
    StandardButton { kind: cancel; }
  }
}

CheckBox

Properties

  • text (string): The text written next to the checkbox.
  • checked: (bool): Whether the checkbox is checked or not.

Callbacks

  • toggled: The checkbox value changed

Example

import { CheckBox } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 25px;
    CheckBox {
        width: parent.width;
        height: parent.height;
        text: "Hello World";
    }
}

SpinBox

Properties

  • value (int): The value.
  • minimum (int): The minimum value (default: 0).
  • maximum (int): The maximum value (default: 100).

Example

import { SpinBox } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 25px;
    SpinBox {
        width: parent.width;
        height: parent.height;
        value: 42;
    }
}

Slider

Properties

  • value (float): The value.
  • minimum (float): The minimum value (default: 0)
  • maximum (float): The maximum value (default: 100)

Callbacks

  • changed(float): The value was changed

Example

import { Slider } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 25px;
    Slider {
        width: parent.width;
        height: parent.height;
        value: 42;
    }
}

GroupBox

Properties

  • title (string): A text written as the title of the group box.

Example

import { GroupBox } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 100px;
    GroupBox {
        title: "A Nice Title";
        Text {
            text: "Hello World";
            color: blue;
        }
    }
}

LineEdit

A widget used to enter a single line of text

Properties

  • text (string): The text being edited
  • has-focus: (bool): Set to true when the line edit currently has the focus
  • placeholder-text: (string): A placeholder text being shown when there is no text in the edit field
  • enabled: (bool): Defaults to true. When false, nothing can be entered

Callbacks

  • accepted: Enter was pressed
  • edited: Emitted when the text has changed because the user modified it

Example

import { LineEdit } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 25px;
    LineEdit {
        width: parent.width;
        height: parent.height;
        placeholder-text: "Enter text here";
    }
}

TextEdit

Similar to LineEdit, but can be used to enter several lines of text

Note: The current implementation only implement very few basic shortcut. More shortcut will be implemented in a future version: https://github.com/sixtyfpsui/sixtyfps/issues/474

Properties

  • text (string): The text being edited
  • has-focus: (bool): Set to true when the widget currently has the focus
  • enabled: (bool): Defaults to true. When false, nothing can be entered
  • wrap (enum TextWrap): The way the text wraps (default: word-wrap).

Callbacks

  • edited: Emitted when the text has changed because the user modified it

Example

import { TextEdit } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 200px;
    TextEdit {
        width: parent.width;
        height: parent.height;
        text: "Lorem ipsum dolor sit amet\n, consectetur adipisici elit";
    }
}

ScrollView

A Scrollview contains a viewport that is bigger than the view and can be scrolled. It has scrollbar to interact with. The viewport-width and viewport-height are calculated automatically to create a scollable view except for when using a for loop to populate the elements. In that case the viewport-width and viewport-height are not calculated automatically and must be set manually for scrolling to work. The ability to automatically calculate the viewport-width and viewport-height when using for loops may be added in the future and is tracked in issue #407.

Properties

  • viewport-width and viewport-height (length): The width and length properties of the viewport
  • viewport-x and viewport-y (length): The x and y properties of the viewport. Usually these are negative
  • visible-width and visible-height (length): The size of the visible area of the ScrollView (not including the scrollbar)
  • enabled and has-focus (bool): property that are only used to render the frame as disabled or focused, but do not change the behavior of the widget.

Example

import { ScrollView } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 200px;
    ScrollView {
        width: 200px;
        height: 200px;
        viewport-width: 300px;
        viewport-height: 300px;
        Rectangle { width: 30px; height: 30px; x: 275px; y: 50px; background: blue; }
        Rectangle { width: 30px; height: 30px; x: 175px; y: 130px; background: red; }
        Rectangle { width: 30px; height: 30px; x: 25px; y: 210px; background: yellow; }
        Rectangle { width: 30px; height: 30px; x: 98px; y: 55px; background: orange; }
    }
}

ListView

A ListView is like a Scrollview but it should have a for element, and the content are automatically layed out in a list. Elements are only instantiated if they are visible

Properties

Same as ScrollView

Example

import { ListView } from "sixtyfps_widgets.60";
Example := Window {
    width: 150px;
    height: 150px;
    ListView {
        width: 150px;
        height: 150px;
        for data in [
            { text: "Blue", color: #0000ff, bg: #eeeeee},
            { text: "Red", color: #ff0000, bg: #eeeeee},
            { text: "Green", color: #00ff00, bg: #eeeeee},
            { text: "Yellow", color: #ffff00, bg: #222222 },
            { text: "Black", color: #000000, bg: #eeeeee },
            { text: "White", color: #ffffff, bg: #222222 },
            { text: "Magenta", color: #ff00ff, bg: #eeeeee },
            { text: "Cyan", color: #00ffff, bg: #222222 },
        ] : Rectangle {
            height: 30px;
            background: data.bg;
            width: parent.width;
            Text {
                text: data.text;
                color: data.color;
            }
        }
    }
}

StandardListView

Like ListView, but with a default delegate, and a model property which is a model of type StandardListViewItem

The StandardListViewItem is equivalent to { text: string } but will be improved in the future with icon, checked and so on (TODO)

Properties

Same as ListView, and in addition:

  • model ([StandardListViewItem]): The model
  • current-item (int): The index of the currently active item. -1 mean none is selected, which is the default

Example

import { StandardListView } from "sixtyfps_widgets.60";
Example := Window {
    width: 150px;
    height: 150px;
    StandardListView {
        width: 150px;
        height: 150px;
        model: [ { text: "Blue"}, { text: "Red" }, { text: "Green" },
            { text: "Yellow" }, { text: "Black"}, { text: "White"},
            { text: "Magenta" }, { text: "Cyan" },
        ];
    }
}

ComboBox

A button that, when clicked, opens a popup to select a value.

Properties

  • model ([string]): The list of possible values
  • current-index: (int): The index of the selected value (-1 if no value is selected)
  • current-value: (string): The currently selected text
  • enabled: (bool): When false, the combobox cannot be opened (default: true)

Callbacks

  • selected(string): A value was selected from the combo box. The argument is the currently selected value.

Example

import { ComboBox } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 25px;
    ComboBox {
        width: preferred-width;
        height: preferred-height;
        model: ["first", "second", "third"];
        current-value: "first";
    }
}

TabWidget

TabWidget is a container for a set of tabs. It can only have Tab elements as children and only one tab will be visible at a time.

Properties

  • current-index (int): The index of the currently visible tab

Properties of the Tab element

  • title (string): The text written in the tab bar.

Example

import { TabWidget } from "sixtyfps_widgets.60";
Example := Window {
    width: 200px;
    height: 200px;
    TabWidget {
        Tab {
            title: "First";
            Rectangle { background: orange; }
        }
        Tab {
            title: "Second";
            Rectangle { background: pink; }
        }
    }
}

HorizontalBox, VerticalBox, GridBox

That's the same as HorizontalLayout, VerticalLayout or GridLayout but the spacing and padding values depending on the style instead of defaulting to 0.

AboutSixtyFPS

This element displays the a "Made with SixtyFPS" badge.

import { AboutSixtyFPS } from "sixtyfps_widgets.60";
Example := Window {
    width: 128px;
    height: 128px;
    AboutSixtyFPS {        
    }
}