Chips

Los chips son pequeños elementos que se suelen usar para listar las propiedades relacionadas.

Los componentes Kirigami.Chip son pequeños elementos que heredan de AbstractButton y que se usan para mostrar propiedades comunes o filtros de algo. Suelen ser elementos de texto, con el que se puede interactuar, y contienen un botón de borrado opcional.

Ejemplo de Chips en la galería de Kirigami

Inicio rápido

Se pueden añadir Chips con facilidad usando el componente Kirigami.Chip. Proporcionamos un nombre a un chip asignando una cadena al campo text.

import QtQuick 2.15
import QtQuick.Controls 2.15
import QtQuick.Layouts 1.15
import org.kde.kirigami 2.20 as Kirigami

Kirigami.ApplicationWindow {
    title: "Chips"

    pageStack.initialPage: Kirigami.Page {
        title: "Chips"

        Kirigami.FormLayout {
            anchors.fill: parent
            Kirigami.Chip {
                text: "Chip 1"
            }
            Kirigami.Chip {
                text: "Chip 2"
            }
            Kirigami.Chip {
                text: "Chip 3"
            }
        }
    }
}

Con repetidores (recomendado)

Since chips are meant to be used more than once, you'll likely want to use some kind of list data structure and iterate over them to display the chips. To do this, we need a ListModel and a Repeater component.

The ListModel is used as storage for the chips. To populate the ListModel (and therefore chips), we declare a couple of ListElement components, which contains a field known as text. We can use this string assigned from here to the text field for each repeated chip.

The Repeater is used for displaying the chips. First, we need to set the model field of the Repeater to our ListModel, or create the ListModel inside of repeater. Then, we declare the Kirigami.Chip component inside of the Repeater, and assign its text field with the element's data using the modelData property.

Kirigami.ApplicationWindow {
    id: root
    title: "Chips"

    ListModel {
        id: chips

        ListElement { text: "Chip 1" }
        ListElement { text: "Chip 2" }
        ListElement { text: "Chip 3" }
    }

    pageStack.initialPage: Kirigami.Page {
        title: "Chips"

        Kirigami.FormLayout {
            anchors.fill: parent
            Repeater {
                Layout.fillWidth: true
                model: chips

                Kirigami.Chip {
                id: chip
                    text: modelData
                }
            }
        }
    }
}

Nota

You can dynamically append and remove data from the ListModel, and the Repeater will automatically make those changes. However, simply changing a specific item from either the Repeater or ListModel does not affect the other, and requires the changing of both, unless something like QAbstractListModel is used. See Example Application for more information.

Aplicación de ejemplo

The example application below showcases how chips can be used in programs such as to-do lists.

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import QtQuick 2.15
import QtQuick.Controls 2.15
import QtQuick.Layouts 1.15
import org.kde.kirigami 2.20 as Kirigami

Kirigami.ApplicationWindow {
    id: root
    title: "Chips"

    ListModel {
        id: chips

        ListElement { text: "Chip 1" }
        ListElement { text: "Chip 2" }
        ListElement { text: "Chip 3" }
    }

    pageStack.initialPage: Kirigami.Page {
        title: "Chips"

        Kirigami.OverlaySheet {
            id: editChipPrompt

            property var chip;
            property var index;

            header: Kirigami.Heading {
                text: "Edit Chip"
            }

            footer: DialogButtonBox {
                standardButtons: DialogButtonBox.Ok | DialogButtonBox.Cancel
                onAccepted: {
                    // Both the data from the Repeater and ListModel must be
                    // edited in order to update both.
                    editChipPrompt.chip.text = editTextField.text;
                    chips.setProperty(editChipPrompt.index, "text", editTextField.text);
                    editChipPrompt.close();
                }
                onRejected: {
                    editChipPrompt.close();
                }
            }

            TextField {
                id: editTextField
            }
        }

        Kirigami.FormLayout {
            anchors.fill: parent
            TextField {
                id: insertTextField
                Kirigami.FormData.label: "Item:"
                onAccepted: chips.append({ text: insertTextField.text })
            }
            // Wrapped in ColumnLayout to prevent binding loops.
            ColumnLayout {
                Layout.alignment: Qt.AlignHCenter
                Repeater {
                    model: chips

                    Kirigami.Chip {
                        id: chip
                        text: modelData
                        onClicked: {
                            editTextField.text = modelData;
                            editChipPrompt.chip = chip;
                            editChipPrompt.index = index;
                            editChipPrompt.open();
                        }
                        onRemoved: chips.remove(index)
                    }
                }
            }
        }
    }
}

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