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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 2.2
import QtQuick.Controls 1.2
import QtQuick.Layouts 1.0
import QtQuick.Dialogs 1.1
import QtQuick.Window 2.1
import org.qtproject.example 1.0

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    minimumWidth: 400
    minimumHeight: 300

    title: document.documentTitle + " - Text Editor Example"

    MessageDialog {
        id: aboutBox
        title: "About Text"
        text: "This is a basic text editor \nwritten with Qt Quick Controls"
        icon: StandardIcon.Information
    }

    Action {
        id: cutAction
        text: "Cut"
        shortcut: "ctrl+x"
        iconSource: "images/editcut.png"
        iconName: "edit-cut"
        onTriggered: textArea.cut()
    }

    Action {
        id: copyAction
        text: "Copy"
        shortcut: "Ctrl+C"
        iconSource: "images/editcopy.png"
        iconName: "edit-copy"
        onTriggered: textArea.copy()
    }

    Action {
        id: pasteAction
        text: "Paste"
        shortcut: "ctrl+v"
        iconSource: "qrc:images/editpaste.png"
        iconName: "edit-paste"
        onTriggered: textArea.paste()
    }

    Action {
        id: alignLeftAction
        text: "&Left"
        iconSource: "images/textleft.png"
        iconName: "format-justify-left"
        shortcut: "ctrl+l"
        onTriggered: document.alignment = Qt.AlignLeft
        checkable: true
        checked: document.alignment == Qt.AlignLeft
    }
    Action {
        id: alignCenterAction
        text: "C&enter"
        iconSource: "images/textcenter.png"
        iconName: "format-justify-center"
        onTriggered: document.alignment = Qt.AlignHCenter
        checkable: true
        checked: document.alignment == Qt.AlignHCenter
    }
    Action {
        id: alignRightAction
        text: "&Right"
        iconSource: "images/textright.png"
        iconName: "format-justify-right"
        onTriggered: document.alignment = Qt.AlignRight
        checkable: true
        checked: document.alignment == Qt.AlignRight
    }
    Action {
        id: alignJustifyAction
        text: "&Justify"
        iconSource: "images/textjustify.png"
        iconName: "format-justify-fill"
        onTriggered: document.alignment = Qt.AlignJustify
        checkable: true
        checked: document.alignment == Qt.AlignJustify
    }

    Action {
        id: boldAction
        text: "&Bold"
        iconSource: "images/textbold.png"
        iconName: "format-text-bold"
        onTriggered: document.bold = !document.bold
        checkable: true
        checked: document.bold
    }

    Action {
        id: italicAction
        text: "&Italic"
        iconSource: "images/textitalic.png"
        iconName: "format-text-italic"
        onTriggered: document.italic = !document.italic
        checkable: true
        checked: document.italic
    }
    Action {
        id: underlineAction
        text: "&Underline"
        iconSource: "images/textunder.png"
        iconName: "format-text-underline"
        onTriggered: document.underline = !document.underline
        checkable: true
        checked: document.underline
    }

    FileDialog {
        id: fileDialog
        nameFilters: ["Text files (*.txt)", "HTML files (*.html, *.htm)"]
        onAccepted: {
            if (fileDialog.selectExisting)
                document.fileUrl = fileUrl
            else
                document.saveAs(fileUrl, selectedNameFilter)
        }
    }

    ColorDialog {
        id: colorDialog
        color: "black"
    }

    Action {
        id: fileOpenAction
        iconSource: "images/fileopen.png"
        iconName: "document-open"
        text: "Open"
        onTriggered: {
            fileDialog.selectExisting = true
            fileDialog.open()
        }
    }

    Action {
        id: fileSaveAsAction
        iconSource: "images/filesave.png"
        iconName: "document-save"
        text: "Save As…"
        onTriggered: {
            fileDialog.selectExisting = false
            fileDialog.open()
        }
    }

    menuBar: MenuBar {
        Menu {
            title: "&File"
            MenuItem { action: fileOpenAction }
            MenuItem { action: fileSaveAsAction }
            MenuItem { text: "Quit"; onTriggered: Qt.quit() }
        }
        Menu {
            title: "&Edit"
            MenuItem { action: copyAction }
            MenuItem { action: cutAction }
            MenuItem { action: pasteAction }
        }
        Menu {
            title: "F&ormat"
            MenuItem { action: boldAction }
            MenuItem { action: italicAction }
            MenuItem { action: underlineAction }
            MenuSeparator {}
            MenuItem { action: alignLeftAction }
            MenuItem { action: alignCenterAction }
            MenuItem { action: alignRightAction }
            MenuItem { action: alignJustifyAction }
            MenuSeparator {}
            MenuItem {
                text: "&Color ..."
                onTriggered: {
                    colorDialog.color = document.textColor
                    colorDialog.open()
                }
            }
        }
        Menu {
            title: "&Help"
            MenuItem { text: "About..." ; onTriggered: aboutBox.open() }
        }
    }

    toolBar: ToolBar {
        id: mainToolBar
        width: parent.width
        RowLayout {
            anchors.fill: parent
            spacing: 0
            ToolButton { action: fileOpenAction }

            ToolBarSeparator {}

            ToolButton { action: copyAction }
            ToolButton { action: cutAction }
            ToolButton { action: pasteAction }

            ToolBarSeparator {}

            ToolButton { action: boldAction }
            ToolButton { action: italicAction }
            ToolButton { action: underlineAction }

            ToolBarSeparator {}

            ToolButton { action: alignLeftAction }
            ToolButton { action: alignCenterAction }
            ToolButton { action: alignRightAction }
            ToolButton { action: alignJustifyAction }

            ToolBarSeparator {}

            ToolButton {
                id: colorButton
                property var color : document.textColor
                Rectangle {
                    id: colorRect
                    anchors.fill: parent
                    anchors.margins: 8
                    color: Qt.darker(document.textColor, colorButton.pressed ? 1.4 : 1)
                    border.width: 1
                    border.color: Qt.darker(colorRect.color, 2)
                }
                onClicked: {
                    colorDialog.color = document.textColor
                    colorDialog.open()
                }
            }
            Item { Layout.fillWidth: true }
        }
    }

    ToolBar {
        id: secondaryToolBar
        width: parent.width

        RowLayout {
            anchors.fill: parent
            ComboBox {
                id: fontFamilyComboBox
                implicitWidth: 150
                model: Qt.fontFamilies()
                property bool special : false
                onActivated: {
                    if (special == false || index != 0) {
                        document.fontFamily = textAt(index)
                    }
                }
            }
            SpinBox {
                id: fontSizeSpinBox
                activeFocusOnPress: false
                implicitWidth: 50
                value: 0
                property bool valueGuard: true
                onValueChanged: if (valueGuard) document.fontSize = value
            }
            Item { Layout.fillWidth: true }
        }
    }

    TextArea {
        Accessible.name: "document"
        id: textArea
        frameVisible: false
        width: parent.width
        anchors.top: secondaryToolBar.bottom
        anchors.bottom: parent.bottom
        baseUrl: "qrc:/"
        text: document.text
        textFormat: Qt.RichText
        Component.onCompleted: forceActiveFocus()
    }

    MessageDialog {
        id: errorDialog
    }

    DocumentHandler {
        id: document
        target: textArea
        cursorPosition: textArea.cursorPosition
        selectionStart: textArea.selectionStart
        selectionEnd: textArea.selectionEnd
        textColor: colorDialog.color
        Component.onCompleted: document.fileUrl = "qrc:/example.html"
        onFontSizeChanged: {
            fontSizeSpinBox.valueGuard = false
            fontSizeSpinBox.value = document.fontSize
            fontSizeSpinBox.valueGuard = true
        }
        onFontFamilyChanged: {
            var index = Qt.fontFamilies().indexOf(document.fontFamily)
            if (index == -1) {
                fontFamilyComboBox.currentIndex = 0
                fontFamilyComboBox.special = true
            } else {
                fontFamilyComboBox.currentIndex = index
                fontFamilyComboBox.special = false
            }
        }
        onError: {
            errorDialog.text = message
            errorDialog.visible = true
        }
    }
}