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 scrollable view except for when using a for loop to populate the elements. In that case the viewport-width and viewport-height aren’t 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

• enabled (in bool): Used to render the frame as disabled or enabled, but doesn’t change behavior of the widget.
• has-focus (in-out bool): Used to render the frame as focused or unfocused, but doesn’t change the behavior of the widget.
• viewport-width and viewport-height (in-out length): The width and length properties of the viewport
• viewport-x and viewport-y (in-out length): The x and y properties of the viewport. Usually these are negative
• visible-width and visible-height (out length): The size of the visible area of the ScrollView (not including the scrollbar)
• vertical-bar-policy and horizontal-bar-policy (in ScrollBarPolicy): The vertical and horizontal scroll bar visibility policy. The default value is ScrollBarPolicy.as-needed.

Callbacks

• scrolled(): Invoked when viewport-x or viewport-y is changed by a user action (dragging, scrolling).

Example

import { ScrollView } from "std-widgets.slint";
export component Example inherits 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; }
    }
}