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import QtCore
import QtQuick
import QtQuick.Controls
import QtQuick.Dialogs
import Qt.labs.platform as Platform

import EpistmoolUI

Item {
    Action {
        id: boldAction
        shortcut: StandardKey.Bold
        onTriggered: docHandler.bold = !docHandler.bold
    }

    Action {
        id: italicAction
        shortcut: StandardKey.Italic
        onTriggered: docHandler.italic = !docHandler.italic
    }

    Action {
        id: underlineAction
        shortcut: StandardKey.Underline
        onTriggered: docHandler.underline = !docHandler.underline
    }

    Action {
        id: strikeoutAction
        shortcut: "Ctrl+Shift+X"
        onTriggered: docHandler.strikeout = !docHandler.strikeout
    }

    Platform.ColorDialog {
        id: colorDialog
        currentColor: "black"
    }

    Item {
        id: toolbar
        width: parent.width
        height: childrenRect.height

        Row {
            id: toolbarLeft
            layoutDirection: Qt.LeftToRight

            ToolButton {
                id: boldButton
                text: "B"
                font.bold: true
                focusPolicy: Qt.TabFocus
                checkable: true
                checked: docHandler.bold
                action: boldAction
            }
            ToolButton {
                id: italicButton
                text: "I"
                font.italic: true
                focusPolicy: Qt.TabFocus
                checkable: true
                checked: docHandler.italic
                action: italicAction
            }
            ToolButton {
                id: underlineButton
                text: "U"
                font.underline: true
                focusPolicy: Qt.TabFocus
                checkable: true
                checked: docHandler.underline
                action: underlineAction
            }
            ToolButton {
                id: strikeoutButton
                text: "S"
                font.strikeout: true
                focusPolicy: Qt.TabFocus
                checkable: true
                checked: docHandler.strikeout
                action: strikeoutAction
            }
            ToolButton {
                id: textColorButton
                text: "\uF1FC" // icon-brush
                font.family: "fontello"
                focusPolicy: Qt.TabFocus
                onClicked: colorDialog.open()

                Rectangle {
                    width: aFontMetrics.width + 3
                    height: 2
                    color: docHandler.activeTextColor
                    parent: textColorButton.contentItem
                    anchors.horizontalCenter: parent.horizontalCenter
                    anchors.baseline: parent.baseline
                    anchors.baselineOffset: 6

                    TextMetrics {
                        id: aFontMetrics
                        font: textColorButton.font
                        text: textColorButton.text
                    }
                }
            }
        }

        Row {
            id: toolbarRight
            layoutDirection: Qt.RightToLeft
            height: parent.height
            anchors.left: toolbarLeft.right
            anchors.right: parent.right

            Label {
                text: docHandler.modifyTime.toLocaleTimeString()

                ToolTip.visible: ma.containsMouse
                ToolTip.text: docHandler.modifyTime.toLocaleString()

                MouseArea {
                    id: ma
                    anchors.fill: parent
                    hoverEnabled: true
                }
            }
        }
    }

    DocumentHandler {
        id: docHandler
        document: textArea.textDocument

        // Binding for current editing state of the TextArea
        cursorPos: textArea.cursorPosition
        selectionBegin: textArea.selectionStart
        selectionEnd: textArea.selectionEnd

        property alias family: docHandler.activeFont.family
        property alias bold: docHandler.activeFont.bold
        property alias italic: docHandler.activeFont.italic
        property alias underline: docHandler.activeFont.underline
        property alias strikeout: docHandler.activeFont.strikeout
        property alias size: docHandler.activeFont.pointSize
    }

    ScrollView {
        id: scrollView
        width: parent.width
        anchors.top: toolbar.bottom
        anchors.bottom: parent.bottom

        TextArea {
            id: textArea
            textFormat: Qt.RichText
            wrapMode: TextArea.Wrap
            focus: true
            selectByMouse: true
            persistentSelection: true
        }
    }
}