import QtQuick                  2.11
import QtQuick.Controls         2.4
import QtQuick.Controls.Styles  1.4
import QtQuick.Layouts          1.2

import QGroundControl.Palette       1.0
import QGroundControl.Controls      1.0
import QGroundControl.ScreenTools   1.0

Rectangle {
    id: _root
    anchors.fill:       parent
    anchors.margins:    ScreenTools.defaultFontPixelWidth
    color:              "white"

    property var palette: QGCPalette { colorGroupEnabled: true }
    property var enabledPalette: QGCPalette { colorGroupEnabled: true }
    property var disabledPalette: QGCPalette { colorGroupEnabled: false }

    QGCFlickable {
        anchors.fill:           parent
        contentWidth:           _rootCol.width
        contentHeight:          _rootCol.height
        clip:                   true

        Column {
            id:         _rootCol

            Rectangle {
                id: _header
                width:  parent.width
                height: themeChoice.height * 2
                color:  palette.window
                QGCLabel {
                    id: windowColorLabel
                    text: qsTr("Window Color")
                    anchors.left:           parent.left
                    anchors.leftMargin:     20
                }

                function exportPaletteColors(pal) {
                    var objToExport = {}
                    for(var clrName in pal) {
                        if(pal[clrName].r !== undefined) {
                            objToExport[clrName] = pal[clrName].toString();
                        }
                    }
                    return objToExport;
                }

                function fillPalette(pal, colorsObj) {
                    for(var clrName in colorsObj) {
                        pal[clrName] = colorsObj[clrName];
                    }
                }

                function exportTheme() {
                    var themeObj = {"light": {}, "dark":{}}
                    var oldTheme = palette.globalTheme;

                    palette.globalTheme = QGCPalette.Light
                    palette.colorGroupEnabled = true
                    themeObj.light["enabled"] = exportPaletteColors(palette);
                    palette.colorGroupEnabled = false
                    themeObj.light["disabled"] = exportPaletteColors(palette);
                    palette.globalTheme = QGCPalette.Dark
                    palette.colorGroupEnabled = true
                    themeObj.dark["enabled"] = exportPaletteColors(palette);
                    palette.colorGroupEnabled = false
                    themeObj.dark["disabled"] = exportPaletteColors(palette);

                    palette.globalTheme = oldTheme;
                    palette.colorGroupEnabled = true;

                    var jsonString = JSON.stringify(themeObj);

                    themeImportExportEdit.text = jsonString
                    paletteImportExportPopup.open()
                }

                function importTheme(jsonStr) {
                    var jsonObj = JSON.parse(jsonStr)
                    var themeObj = {"light": {}, "dark":{}}
                    var oldTheme = palette.globalTheme;

                    palette.globalTheme = QGCPalette.Light
                    palette.colorGroupEnabled = true
                    fillPalette(palette, jsonObj.light.enabled)
                    palette.colorGroupEnabled = false
                    fillPalette(palette, jsonObj.light.disabled);
                    palette.globalTheme = QGCPalette.Dark
                    palette.colorGroupEnabled = true
                    fillPalette(palette, jsonObj.dark.enabled);
                    palette.colorGroupEnabled = false
                    fillPalette(palette, jsonObj.dark.disabled);

                    palette.globalTheme = oldTheme;
                    palette.colorGroupEnabled = true;

                    paletteImportExportPopup.close()
                }

                Popup {
                    id: paletteImportExportPopup
                    focus: true
                    parent: Overlay.overlay
                    x: (_root.width - width)/2
                    y: (_root.height - height)/2
                    width:  _root.width  * 0.666
                    height: _root.height * 0.666
                    modal:  true
                    Column {
                        anchors.fill: parent
                        spacing: 5

                        Rectangle {
                            width: parent.width
                            height: parent.height - importButton.height
                            border.width: 1

                            Flickable {
                                id: flick

                                anchors.fill: parent
                                contentWidth: themeImportExportEdit.paintedWidth
                                contentHeight: themeImportExportEdit.paintedHeight
                                clip: true

                                function ensureVisible(r)
                                {
                                   if (contentX >= r.x)
                                       contentX = r.x;
                                   else if (contentX+width <= r.x+r.width)
                                       contentX = r.x+r.width-width;
                                   if (contentY >= r.y)
                                       contentY = r.y;
                                   else if (contentY+height <= r.y+r.height)
                                       contentY = r.y+r.height-height;
                                }

                                TextEdit {
                                   id: themeImportExportEdit
                                   width: flick.width
                                   focus: true
                                   wrapMode: TextEdit.Wrap
                                   onCursorRectangleChanged: flick.ensureVisible(cursorRectangle)
                                }
                            }
                        }
                        Button {
                            id: importButton
                            text: "Import"
                            onPressed: {
                                _header.importTheme(themeImportExportEdit.text);
                            }
                        }
                    }
                }

                Button {
                    id: exportButton
                    text: "Import/Export"
                    width: 200
                    height: 30
                    anchors.left: windowColorLabel.right
                    anchors.leftMargin: 20
                    onPressed: _header.exportTheme()
                }

                Row {
                    id: themeChoice
                    anchors.centerIn: parent
                    anchors.margins: 20
                    spacing:         20

                    ButtonGroup { id: themeGroup; exclusive: true }
                    QGCRadioButton {
                        text: qsTr("Light")
                        checked: palette.globalTheme === QGCPalette.Light
                        ButtonGroup.group: themeGroup
                        onClicked: { palette.globalTheme = QGCPalette.Light }
                    }
                    QGCRadioButton {
                        text: qsTr("Dark")
                        checked: palette.globalTheme === QGCPalette.Dark
                        ButtonGroup.group: themeGroup
                        onClicked: { palette.globalTheme = QGCPalette.Dark }
                    }
                }
            }

            Row {
                spacing: 30

                // Edit theme GroupBox
                GroupBox {
                    title: "Preview and edit theme"
                Column {
                    id: editRoot
                    spacing: 5
                    property size cellSize: "90x25"

                    // Header row
                    Row {
                        Text {
                            width: editRoot.cellSize.width * 2
                            height: editRoot.cellSize.height
                            text: ""
                        }
                        Text {
                            width: editRoot.cellSize.width; height: editRoot.cellSize.height
                            color: "black"
                            horizontalAlignment: Text.AlignLeft
                            text: qsTr("Enabled")
                        }
                        Text {
                            width: editRoot.cellSize.width; height: editRoot.cellSize.height
                            color: "black"
                            horizontalAlignment: Text.AlignHCenter
                            text: qsTr("Value")
                        }
                        Text {
                            width: editRoot.cellSize.width; height: editRoot.cellSize.height
                            color: "black"
                            horizontalAlignment: Text.AlignHCenter
                            text: qsTr("Disabled")
                        }
                        Text {
                            width: editRoot.cellSize.width; height: editRoot.cellSize.height
                            color: "black"
                            horizontalAlignment: Text.AlignHCenter
                            text: qsTr("Value")
                        }
                    }

                    // Populate the model with all color names in the global palette
                    Component.onCompleted: {
                        for(var colorNameStr in palette) {
                            if(palette[colorNameStr].r !== undefined) {
                                paletteColorList.append({ colorName: colorNameStr });
                            }
                        }
                    }

                    ListModel {
                        id: paletteColorList
                    }

                    // Reproduce all the models
                    Repeater {
                        model: paletteColorList
                        delegate: Row {
                            spacing: 5
                            Text {
                                width: editRoot.cellSize.width * 2
                                height: editRoot.cellSize.height
                                horizontalAlignment: Text.AlignRight
                                verticalAlignment: Text.AlignVCenter
                                color: "black"
                                text: colorName
                            }
                            ClickableColor {
                                id: enabledColorPicker
                                color: enabledPalette[colorName]
                                onColorSelected: enabledPalette[colorName] = color
                            }
                            TextField {
                                id: enabledTextField
                                width: editRoot.cellSize.width; height: editRoot.cellSize.height
                                inputMask: "\\#>HHHHHHhh;"
                                horizontalAlignment: Text.AlignLeft
                                text: enabledPalette[colorName]
                                onEditingFinished: enabledPalette[colorName] = text
                            }
                            ClickableColor {
                                id: disabledColorPicker
                                color: disabledPalette[colorName]
                                onColorSelected: disabledPalette[colorName] = color
                            }
                            TextField {
                                width: editRoot.cellSize.width; height: editRoot.cellSize.height
                                inputMask: enabledTextField.inputMask
                                horizontalAlignment: Text.AlignLeft
                                text: disabledPalette[colorName]
                                onEditingFinished: disabledPalette[colorName] = text
                            }
                        }
                    }
                } // Column
                } // GroupBox { title: "Preview and edit theme"

                // QGC controls preview
                GroupBox { title: "Controls preview"
                Column {
                    id: ctlPrevColumn
                    property real _colWidth: ScreenTools.defaultFontPointSize * 18
                    property real _height: _colWidth*0.15
                    property color _bkColor: qgcPal.window
                    spacing: 10
                    width: previewGrid.width
                    Grid {
                        id: previewGrid
                        columns: 3
                        spacing: 10

                        Component {
                            id: ctlRowHeader

                            Rectangle {
                                width: ctlPrevColumn._colWidth
                                height: ctlPrevColumn._height
                                color: "white"
                                Text {
                                    anchors.fill: parent
                                    horizontalAlignment: Text.AlignRight
                                    verticalAlignment: Text.AlignVCenter
                                    color: "black"

                                    text: parent.parent.text
                                }
                            }
                        }

                        // Header row
                        Text {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: "black"
                            horizontalAlignment: Text.AlignHCenter
                            text: qsTr("QGC name")
                        }
                        Text {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: "black"
                            horizontalAlignment: Text.AlignHCenter
                            text: qsTr("Enabled")
                        }
                        Text {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: "black"
                            horizontalAlignment: Text.AlignHCenter
                            text: qsTr("Disabled")
                        }

                        // QGCLabel
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCLabel"
                        }
                        Rectangle {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: ctlPrevColumn._bkColor
                            QGCLabel {
                                anchors.fill: parent
                                anchors.margins: 5
                                text: qsTr("Label")
                            }
                        }
                        Rectangle {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: ctlPrevColumn._bkColor
                            QGCLabel {
                                anchors.fill: parent
                                anchors.margins: 5
                                text: qsTr("Label")
                                enabled: false
                            }
                        }

                        // QGCButton
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCButton"
                        }
                        QGCButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            text: qsTr("Button")
                        }
                        QGCButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            text: qsTr("Button")
                            enabled: false
                        }

                        // QGCButton - primary
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCButton(primary)"
                        }
                        QGCButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            primary: true
                            text: qsTr("Button")
                        }
                        QGCButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            text: qsTr("Button")
                            primary: true
                            enabled: false
                        }

                        // QGCHoverButton
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCHoverButton"
                        }
                        QGCHoverButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height * 2
                            text: qsTr("Hover Button")
                            radius: ScreenTools.defaultFontPointSize
                            imageSource: "/qmlimages/Gears.svg"
                        }
                        QGCHoverButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height * 2
                            text: qsTr("Hover Button")
                            radius: ScreenTools.defaultFontPointSize
                            imageSource: "/qmlimages/Gears.svg"
                            enabled: false
                        }

                        // QGCButton - menu
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCButton(menu)"
                        }
                        Menu {
                            id: buttonMenu
                            MenuItem {
                                text: qsTr("Item 1")
                            }
                            MenuItem {
                                text: qsTr("Item 2")
                            }
                            MenuItem {
                                text: qsTr("Item 3")
                            }
                        }
                        QGCButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            text: qsTr("Button")
                            onClicked: buttonMenu.popup()
                        }
                        QGCButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            text: qsTr("Button")
                            enabled: false
                            onClicked: buttonMenu.popup()
                        }

                        // QGCRadioButton
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCRadioButton"
                        }
                        Rectangle {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: ctlPrevColumn._bkColor
                            QGCRadioButton {
                                anchors.fill: parent
                                anchors.margins: 5
                                text: qsTr("Radio")
                            }
                        }
                        Rectangle {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: ctlPrevColumn._bkColor
                            QGCRadioButton {
                                anchors.fill: parent
                                anchors.margins: 5
                                text: qsTr("Radio")
                                enabled: false
                            }
                        }

                        // QGCCheckBox
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCCheckBox"
                        }
                        Rectangle {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: ctlPrevColumn._bkColor
                            QGCCheckBox {
                                anchors.fill: parent
                                anchors.margins: 5
                                text: qsTr("Check Box")
                            }
                        }
                        Rectangle {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            color: ctlPrevColumn._bkColor
                            QGCCheckBox {
                                anchors.fill: parent
                                anchors.margins: 5
                                text: qsTr("Check Box")
                                enabled: false
                            }
                        }

                        // QGCTextField
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCTextField"
                        }
                        QGCTextField {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            text: "QGCTextField"
                        }
                        QGCTextField {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            text: "QGCTextField"
                            enabled: false
                        }

                        // QGCComboBox
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "QGCComboBox"
                        }
                        QGCComboBox {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            model: [ qsTr("Item 1"), qsTr("Item 2"), qsTr("Item 3") ]
                        }
                        QGCComboBox {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._height
                            model: [ qsTr("Item 1"), qsTr("Item 2"), qsTr("Item 3") ]
                            enabled: false
                        }

                        // SubMenuButton
                        Loader {
                            sourceComponent: ctlRowHeader
                            property string text: "SubMenuButton"
                        }
                        SubMenuButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._colWidth/3
                            text: qsTr("SUB MENU")
                        }
                        SubMenuButton {
                            width: ctlPrevColumn._colWidth
                            height: ctlPrevColumn._colWidth/3
                            text: qsTr("SUB MENU")
                            enabled: false
                        }
                    }
                    Rectangle {
                        width:  previewGrid.width
                        height: 60
                        radius: 3
                        color:  palette.alertBackground
                        border.color: palette.alertBorder
                        anchors.horizontalCenter: parent.horizontalCenter
                        Label {
                            text: "Alert Message"
                            palette.text: palette.alertText
                            anchors.centerIn: parent
                        }
                    }
                } // Column
                } // GroupBox { title: "Controls preview"
            }

            Item{
                height: 10;
                width:  1;
            }

            Component {
                id: arbBox
                Rectangle {
                    width:  arbGrid.width  * 1.5
                    height: arbGrid.height * 1.5
                    color:  backgroundColor
                    border.color: qgcPal.text
                    border.width: 1
                    anchors.horizontalCenter: parent.horizontalCenter
                    GridLayout {
                        id: arbGrid
                        columns: 4
                        rowSpacing: 10
                        anchors.centerIn: parent
                        QGCColoredImage {
                            color:                      qgcPal.colorGreen
                            width:                      ScreenTools.defaultFontPixelWidth * 2
                            height:                     width
                            sourceSize.height:          width
                            mipmap:                     true
                            fillMode:                   Image.PreserveAspectFit
                            source:                     "/qmlimages/Gears.svg"
                        }
                        Label { text: "colorGreen"; color: qgcPal.colorGreen; }
                        QGCColoredImage {
                            color:                      qgcPal.colorOrange
                            width:                      ScreenTools.defaultFontPixelWidth * 2
                            height:                     width
                            sourceSize.height:          width
                            mipmap:                     true
                            fillMode:                   Image.PreserveAspectFit
                            source:                     "/qmlimages/Gears.svg"
                        }
                        Label { text: "colorOrange"; color: qgcPal.colorOrange; }
                        QGCColoredImage {
                            color:                      qgcPal.colorRed
                            width:                      ScreenTools.defaultFontPixelWidth * 2
                            height:                     width
                            sourceSize.height:          width
                            mipmap:                     true
                            fillMode:                   Image.PreserveAspectFit
                            source:                     "/qmlimages/Gears.svg"
                        }
                        Label { text: "colorRed"; color: qgcPal.colorRed; }
                        QGCColoredImage {
                            color:                      qgcPal.colorGrey
                            width:                      ScreenTools.defaultFontPixelWidth * 2
                            height:                     width
                            sourceSize.height:          width
                            mipmap:                     true
                            fillMode:                   Image.PreserveAspectFit
                            source:                     "/qmlimages/Gears.svg"
                        }
                        Label { text: "colorGrey"; color: qgcPal.colorGrey;  }
                        QGCColoredImage {
                            color:                      qgcPal.colorBlue
                            width:                      ScreenTools.defaultFontPixelWidth * 2
                            height:                     width
                            sourceSize.height:          width
                            mipmap:                     true
                            fillMode:                   Image.PreserveAspectFit
                            source:                     "/qmlimages/Gears.svg"
                        }
                        Label { text: "colorBlue"; color: qgcPal.colorBlue; }
                    }
                }
            }

            Row {
                spacing: 10
                anchors.horizontalCenter: parent.horizontalCenter
                Loader {
                    property color backgroundColor: qgcPal.window
                    sourceComponent: arbBox
                }
                Loader {
                    property color backgroundColor: qgcPal.windowShade
                    sourceComponent: arbBox
                }
                Loader {
                    property color backgroundColor: qgcPal.windowShadeDark
                    sourceComponent: arbBox
                }
            }

        }

    }
}