slint/demos/printerdemo_mcu/ui/common.slint

// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: MIT

struct ButtonColors  {
    base: color,
    pressed: color,
    hovered: color,
}

export global DemoPalette  {
    // Color of the home/settings/ink buttons on the left side bar
    out property <color> active-page-icon-color: root.night-mode ? #6284FF : #122F7B;
    out property <color> inactive-page-icon-color: #BDC0D1;
    out property <color> main-background: #0E133F;
    out property <color> neutral-box: #BDC0D1;
    out property <color> page-background-color: root.night-mode ? #122F7B : white;
    out property <color> text-foreground-color: root.night-mode ? #F4F6FF : black;
    out property <color> secondary-foreground-color: root.night-mode ? #C1C3CA : #6C6E7A;
    out property <color> printer-action-background-color: root.night-mode ? root.main-background : white;
    out property <color> printer-queue-item-background-color: root.page-background-color;
    out property <color> status-label-text-color: root.night-mode ? #F1FF98 : #6284FF;

    // Color used for the border / outline of items that can be clicked on, such as the
    // "Print"/"Scan" buttons, the printer queue items (for expansion) or controls such
    // as the combo box or spin box.
    out property <color> control-outline-color: #FFBF63;
    out property <color> control-secondary: #6284FF;
    out property <color> control-foreground: root.night-mode ? white : #122F7B;  // FIXME: the night mode color was not part of the design
    out property <color> primary-push-button-base: #6284FF;
    out property <ButtonColors> primary-push-button-colors: {
        base: root.primary-push-button-base,
        pressed: root.primary-push-button-base.darker(40%),
        hovered: root.primary-push-button-base.darker(20%),
    };
    out property <color> secondary-push-button-base: #FFBF63;
    out property <ButtonColors> secondary-push-button-colors: {
        base: root.secondary-push-button-base,
        pressed: root.secondary-push-button-base.darker(40%),
        hovered: root.secondary-push-button-base.darker(20%),
    };
    out property <color> push-button-text-color: white;
    out property <length> base-font-size: 12px;
    in-out property <bool> night-mode: false;
}

export component Page inherits Rectangle {
    in property <string> header <=> h.text;
    in property <bool> has-back-button: false;

    callback back;

    background: DemoPalette.page-background-color;

    TouchArea {} // protect underneath controls

    if (root.has-back-button) : Image {
        source: @image-url("images/back.svg");
        image-fit: contain;
        colorize: DemoPalette.control-secondary;
        y: h.y + (h.height - self.height) / 2;
        x: 5px;
        width: 14px;
        height: 24px;

        TouchArea {
            pointer-event(ev) => {
                if (ev.kind == PointerEventKind.up) {
                    root.back()
                }
            }
            width: 400%;
            height: 200%;
            x: (parent.width - self.width) / 2;
            y: (parent.height - self.height) / 2;
        }
    }

    h := Text {
        font-weight: 900;
        font-size: DemoPalette.base-font-size * 1.75;
        color: DemoPalette.text-foreground-color;
        y: 23px - self.font-size;
        x: root.has-back-button ? 30px + 16px : 0px;

        // Allow clicking on the title as well to get back easier when just
        // using fingers on a small screen.
        if (root.has-back-button) : TouchArea {
            pointer-event(ev) => {
                if (ev.kind == PointerEventKind.up) {
                    root.back()
                }
            }
        }
    }
}
export component Label inherits Text {
    color: DemoPalette.text-foreground-color;
    vertical-alignment: center;
    font-weight: 700;
    vertical-stretch: 0;
}

component SquareButton inherits Rectangle {
    in property <image> img;

    callback clicked;

    border-radius: 3px;
    border-width: 2px;
    border-color: DemoPalette.control-outline-color;

    touch := TouchArea {
        pointer-event(ev) => {
            if (ev.kind == PointerEventKind.up) {
                root.clicked()
            }
        }

        x: -4px;
        y: -4px;
        width: parent.width + 8px;
        height: parent.height + 8px;
    }

    Image {
        height: 12px;
        width: 12px;
        x: (parent.width - self.width)/2;
        y: (parent.height - self.height)/2;
        source <=> root.img;
        image-fit: contain;
        colorize: DemoPalette.control-secondary;
    }
}

export component SpinBox inherits Rectangle {
    in property <int> minimum;
    in property <int> maximum: 100;
    in-out property <int> value;

    height: 32px;

    HorizontalLayout {
        spacing: 12px;
        padding: 0;

        SquareButton {
            clicked => {
                if (root.value > root.minimum) {
                    root.value -= 1;
                }
            }

            width: root.height - parent.padding * 2;
            img: @image-url("images/minus.svg");
        }

        Rectangle {
            border-radius: 3px;
            border-width: 2px;
            border-color: DemoPalette.control-outline-color;

            Text {
                width: 100%;
                height: 100%;
                vertical-alignment: center;
                horizontal-alignment: center;
                text: root.value;
                color: DemoPalette.control-foreground;
            }
        }

        SquareButton {
            clicked => {
                if (root.value < root.maximum) {
                    root.value += 1;
                }
            }

            width: root.height - parent.padding * 2;
            img: @image-url("images/plus.svg");
        }
    }
}

export component ComboBox inherits Rectangle {
    in property <[string]> choices;
    in-out property <string> value;

    border-radius: 3px;
    border-width: 2px;
    border-color: DemoPalette.control-outline-color;
    height: 32px;
    min-width: label.x + label.width + i.width;
    horizontal-stretch: 1; // Work around #2284

    label := Text {
        vertical-alignment: center;
        horizontal-alignment: left;
        text <=> root.value;
        color: DemoPalette.control-foreground;
        height: 100%;
        x: 12px;
    }

    i := Image {
        source: @image-url("images/down.svg");
        colorize: DemoPalette.control-secondary;
        height: 40%;
        width: self.height;
        image-fit: contain;
        x: parent.width - self.width - self.y;
        y: (parent.height - self.height)/2;
    }

    TouchArea {
        pointer-event(ev) => {
            if (ev.kind == PointerEventKind.up) {
                popup.show()
            }
        }

        width: 100%;
        height: 100%;
    }

    popup := PopupWindow {
        x: 0;
        y: root.height;
        width: root.width;

        Rectangle {
            background: DemoPalette.page-background-color;
            border-radius: 3px;
            border-width: 2px;
            border-color: DemoPalette.control-outline-color;
        }

        VerticalLayout {
            spacing: 6px;
            padding: 3px;

            for value[idx] in root.choices: Rectangle {
                border-radius: 3px;
                background: item-area.has-hover ? DemoPalette.primary-push-button-colors.hovered : #0000;

                HorizontalLayout {
                    Text {
                        text: value;
                        color: item-area.has-hover ? DemoPalette.push-button-text-color : DemoPalette.text-foreground-color;
                        font-size: DemoPalette.base-font-size;
                    }
                }

                item-area := TouchArea {
                    clicked => {
                        root.value = value;
                    }
                }
            }
        }
    }
}

export component CheckBox inherits Rectangle {
    in property <string> text;
    in-out property <bool> checked;

    height: 32px;

    HorizontalLayout {
        spacing: 12px;
        padding: 0;

        SquareButton {
            clicked => { root.checked = !root.checked; }

            width: root.height - parent.padding * 2;
            img: root.checked ? @image-url("images/check.svg") : @image-url("");
        }

        if root.text != "" : Text {
            text <=> root.text;
            vertical-alignment: center;
            horizontal-alignment: center;
            color: DemoPalette.control-foreground;
            horizontal-stretch: 1;
        }
    }

    TouchArea {
        pointer-event(ev) => {
            if (ev.kind == PointerEventKind.up) {
                root.checked = !root.checked;
            }
        }
    }
}

export component PushButton inherits Rectangle {

    in property <string> text <=> label.text;
    in property <image> icon <=> img.source;
    in property <bool> primary: true;
    out property <bool> pressed: touch-area.pressed;
    out property <ButtonColors> colors: root.primary ? DemoPalette.primary-push-button-colors : DemoPalette.secondary-push-button-colors;

    callback clicked;

    border-radius: 13.5px;
    background: root.pressed ? root.colors.pressed : (touch-area.has-hover ? root.colors.hovered : root.colors.base);
    horizontal-stretch: 1;

    HorizontalLayout {
        padding-top: 5px;
        padding-bottom: 5px;
        padding-left: parent.border-radius;
        padding-right: parent.border-radius;

        img := Image {
            horizontal-stretch: 0;
            colorize: DemoPalette.push-button-text-color;
            image-fit: contain;
            width: 17px;
        }

        label := Text {
            font-weight: 900;
            font-size: DemoPalette.base-font-size * 0.975;
            color: DemoPalette.push-button-text-color;
            horizontal-alignment: center;
            vertical-alignment: center;
        }
    }

    touch-area := TouchArea {
        pointer-event(ev) => {
            if (ev.kind == PointerEventKind.up) {
                root.clicked()
            }
        }
    }
}