Change sublayer visibility

// [WriteFile Name=ChangeSublayerVisibility, Category=Layers]
// [Legal]
// Copyright 2016 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

#ifdef PCH_BUILD
#include "pch.hpp"
#endif // PCH_BUILD

// sample headers
#include "ChangeSublayerVisibility.h"

// ArcGIS Maps SDK headers
#include "ArcGISMapImageLayer.h"
#include "ArcGISSublayerListModel.h"
#include "Basemap.h"
#include "LayerListModel.h"
#include "Map.h"
#include "MapQuickView.h"
#include "MapTypes.h"
#include "Point.h"
#include "SpatialReference.h"
#include "Viewpoint.h"

// Qt headers
#include <QUrl>

using namespace Esri::ArcGISRuntime;

ChangeSublayerVisibility::ChangeSublayerVisibility(QQuickItem* parent) :
  QQuickItem(parent)
{
}

ChangeSublayerVisibility::~ChangeSublayerVisibility() = default;

void ChangeSublayerVisibility::init()
{
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<ChangeSublayerVisibility>("Esri.Samples", 1, 0, "ChangeSublayerVisibilitySample");
  qmlRegisterUncreatableType<QAbstractListModel>("Esri.Samples", 1, 0, "AbstractListModel", "AbstractListModel is uncreateable");
}

void ChangeSublayerVisibility::componentComplete()
{
  QQuickItem::componentComplete();

  // find QML MapView component
  m_mapView = findChild<MapQuickView*>("mapView");

  // create a new map instance
  m_map = new Map(BasemapStyle::ArcGISTopographic, this);
  m_map->setInitialViewpoint(Viewpoint(Point(-11e6, 6e6, SpatialReference(102100)), 9e7));

  // add the map image layer
  m_mapImageLayer = new ArcGISMapImageLayer(QUrl("https://sampleserver6.arcgisonline.com/arcgis/rest/services/SampleWorldCities/MapServer"), this);
  m_map->operationalLayers()->append(m_mapImageLayer);

  // set map on the map view
  m_mapView->setMap(m_map);

  // set the map image layer's sublayer list model to the Q_PROPERTY
  m_sublayerModel = m_mapImageLayer->mapImageSublayers();
  emit sublayerModelChanged();
}

QAbstractListModel* ChangeSublayerVisibility::sublayerModel()
{
  return m_sublayerModel;
}

// [WriteFile Name=ChangeSublayerVisibility, Category=Layers]
// [Legal]
// Copyright 2016 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

#ifndef CHANGE_SUBLAYER_VISIBILITY_H
#define CHANGE_SUBLAYER_VISIBILITY_H

// Qt headers
#include <QAbstractListModel>
#include <QQuickItem>

namespace Esri::ArcGISRuntime
{
  class Map;
  class MapQuickView;
  class ArcGISMapImageLayer;
} // namespace Esri::ArcGISRuntime

class ChangeSublayerVisibility : public QQuickItem
{
  Q_OBJECT

  Q_PROPERTY(QAbstractListModel* sublayerModel READ sublayerModel NOTIFY sublayerModelChanged)

public:
  explicit ChangeSublayerVisibility(QQuickItem* parent = nullptr);
  ~ChangeSublayerVisibility() override;

  void componentComplete() override;
  static void init();

signals:
  void sublayerModelChanged();

private:
  QAbstractListModel* sublayerModel();

private:
  Esri::ArcGISRuntime::Map* m_map = nullptr;
  Esri::ArcGISRuntime::MapQuickView* m_mapView = nullptr;
  Esri::ArcGISRuntime::ArcGISMapImageLayer* m_mapImageLayer = nullptr;
  QAbstractListModel* m_sublayerModel = nullptr;
};

#endif // CHANGE_SUBLAYER_VISIBILITY_H

// [WriteFile Name=ChangeSublayerVisibility, Category=Layers]
// [Legal]
// Copyright 2016 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

import QtQuick
import QtQuick.Controls
import Esri.Samples

ChangeSublayerVisibilitySample {
    id: changeSublayerVisibilitySample
    width: 800
    height: 600

    // add a mapView component
    MapView {
        anchors.fill: parent
        objectName: "mapView"

        Component.onCompleted: {
            // Set the focus on MapView to initially enable keyboard navigation
            forceActiveFocus();
        }
    }

    // Create a window to display the sublayers
    Rectangle {
        id: layerVisibilityRect
        anchors {
            margins: 10
            left: parent.left
            top: parent.top
        }
        height: 150
        width: 170
        color: "transparent"

        MouseArea {
            anchors.fill: parent
            acceptedButtons: Qt.LeftButton | Qt.RightButton
            onClicked: mouse => mouse.accepted = true
            onDoubleClicked: mouse => mouse.accepted = true
            onWheel: wheel => wheel.accepted = true
        }

        Rectangle {
            anchors.fill: parent
            width: layerVisibilityRect.width
            height: layerVisibilityRect.height
            color: palette.base
            opacity: .9
            radius: 5
            border {
                color: "#4D4D4D"
                width: 1
            }


            Column {
                anchors {
                    fill: parent
                    margins: 10
                }

                Label {
                    width: parent.width
                    text: qsTr("Sublayers")
                    wrapMode: Text.WordWrap
                    clip: true
                    font {
                        pointSize: 14
                        bold: true
                    }
                }

                // Create a list view to display the items
                ListView {
                    id: layerVisibilityListView
                    anchors.margins: 10
                    width: parent.width
                    height: parent.height
                    clip: true

                    // Assign the model to the list model of sublayers
                    model: changeSublayerVisibilitySample.sublayerModel

                    // Assign the delegate to the delegate created above
                    delegate: Item {
                        id: layerVisibilityDelegate
                        width: parent.width
                        height: 35

                        Row {
                            spacing: 5
                            Label {
                                anchors.verticalCenter: parent.verticalCenter
                                width: 75
                                text: name
                                wrapMode: Text.WordWrap
                                font.pointSize: 14
                            }

                            Switch {
                                anchors.verticalCenter: parent.verticalCenter
                                checked: sublayerVisible

                                onToggled: {
                                    sublayerVisible = checked;
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}