/****************************************************************************
  **
  ** Copyright (C) 2017 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the QtSensors module 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,
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  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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  ****************************************************************************/

  import QtQuick 2.1
  import QtQuick.Window 2.1
  import QtQuick.Controls 1.0

  import Explorer 1.0

  Window {
      id: window
      width: 320
      height: 480
      minimumWidth: 320
      minimumHeight: 480

      SensorExplorer {
          id: explorer
      }

      Column {
          anchors.fill: parent
          anchors.margins: 8
          spacing: 8

          GroupBox {
              title: qsTr("Available Sensors")
              width: parent.width
              height: window.height * 0.4

              TableView {
                  id: sensorList
                  anchors.fill: parent
                  model: explorer.availableSensors

                  TableViewColumn { role: "id"; title: qsTr("ID"); width: sensorList.width * 0.7 }
                  TableViewColumn { role: "start"; title: qsTr("Running"); width: sensorList.width * 0.3 - 5 }

                  onClicked: {
                      explorer.selectedSensorItem = explorer.availableSensors[row]
                      propertyList.model = explorer.selectedSensorItem.properties
                      button.update()
                  }
              }

              Button {
                  id: button
                  anchors.margins: 4
                  anchors.horizontalCenter: parent.horizontalCenter
                  anchors.top: sensorList.bottom
                  text: qsTr("Start")
                  enabled: explorer.selectedSensorItem !== null

                  function update() {
                      text = (explorer.selectedSensorItem !== null ?
                                  (explorer.selectedSensorItem.start === true ?
                                       qsTr("Stop") : qsTr("Start")) : qsTr("Start"))
                  }

                  onClicked: {
                      if (explorer.selectedSensorItem !== null) {
                          if (text === "Start") {
                              explorer.selectedSensorItem.start = true;
                              text = "Stop";
                          }
                          else {
                              explorer.selectedSensorItem.start = false;
                              text = "Start";
                          }
                      }
                  }
              }

          }

          GroupBox {
              title: qsTr("Properties")
              width: parent.width
              height: window.height * 0.55

              enabled: explorer.selectedSensorItem != null

              TableView {
                  id: propertyList
                  property PropertyInfo selectedItem: null

                  anchors.fill: parent
                  TableViewColumn { role: "name"; title: qsTr("Name"); width: propertyList.width * 0.5 }
                  TableViewColumn { role: "value"; title: qsTr("Value"); width: propertyList.width * 0.5 - 5 }

                  onClicked: {
                      selectedItem = model[row]
                  }

                  itemDelegate: {
                      if (selectedItem && selectedItem.isWriteable)
                          return editableDelegate;
                      return readOnlyDelegate;
                  }

                  Component {
                      id: readOnlyDelegate
                      Item {
                          Text {
                              width: parent.width
                              anchors.margins: 4
                              anchors.left: parent.left
                              anchors.verticalCenter: parent.verticalCenter
                              elide: styleData.elideMode
                              text: styleData.value
                              color: propertyList.model[styleData.row].isWriteable ?
                                         styleData.textColor : Qt.lighter(styleData.textColor)
                          }
                      }
                  }

                  Component {
                      id: editableDelegate
                      Item {
                          Text {
                              width: parent.width
                              anchors.margins: 4
                              anchors.left: parent.left
                              anchors.verticalCenter: parent.verticalCenter
                              elide: styleData.elideMode
                              text: styleData.value
                              color: styleData.textColor
                              visible: !styleData.selected || styleData.column === 0
                          }
                          Loader { // Initialize text editor lazily to improve performance
                              id: loaderEditor
                              anchors.margins: 4
                              anchors.left: parent.left
                              anchors.verticalCenter: parent.verticalCenter
                              Connections {
                                  target: loaderEditor.item
                                  onAccepted: {
                                      explorer.selectedSensorItem.changePropertyValue(propertyList.selectedItem, loaderEditor.item.text);
                                  }
                              }

                              // Load the editor for selected 'Value' cell
                              sourceComponent: (styleData.selected && styleData.column === 1) ? editor : null

                              Component {
                                  id: editor
                                  TextInput {
                                      id: textinput
                                      color: styleData.textColor
                                      text: styleData.value
                                      MouseArea {
                                          id: mouseArea
                                          anchors.fill: parent
                                          hoverEnabled: true
                                          onClicked: textinput.forceActiveFocus()
                                      }
                                  }
                              }
                          }
                      }
                  }
              }
          }
      }
  }