Viewshed (location)

// [WriteFile Name=ViewshedLocation, Category=Analysis]
// [Legal]
// Copyright 2018 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 QtQuick.Layouts

Dialog {
    id: colorDialog
    property alias red: redSlider.value
    property alias green: greenSlider.value
    property alias blue: blueSlider.value
    property alias alpha: alphaSlider.value
    readonly property color color: Qt.rgba(red, green, blue, alpha);

    title: "Pick a color"
    standardButtons: Dialog.Ok | Dialog.Cancel

    function setColor(c) {
        red = c.r;
        green = c.g;
        blue = c.b;
        alpha = c.a;
    }

    GridLayout {
        columns: 2
        Rectangle {
            Layout.columnSpan: 2
            Layout.fillWidth: true
            height: redSlider.height
            border {
                color: "black"
                width: 1
            }
            radius: 2
            color: colorDialog.color
        }

        Text {
            text: "Red"
        }

        Slider {
            id: redSlider
        }

        Text {
            text: "Green"
        }

        Slider {
            id: greenSlider
        }

        Text {
            text: "Blue"
        }

        Slider {
            id: blueSlider
        }

        Text {
            text: "Alpha"
        }

        Slider {
            id: alphaSlider
        }
    }
}

// [WriteFile Name=ViewshedLocation, Category=Analysis]
// [Legal]
// Copyright 2017 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 "ViewshedLocation.h"

// ArcGIS Maps SDK headers
#include "AnalysisListModel.h"
#include "AnalysisOverlay.h"
#include "AnalysisOverlayListModel.h"
#include "ArcGISTiledElevationSource.h"
#include "Camera.h"
#include "ElevationSourceListModel.h"
#include "LocationViewshed.h"
#include "MapTypes.h"
#include "Point.h"
#include "Scene.h"
#include "SceneQuickView.h"
#include "SpatialReference.h"
#include "Surface.h"

// Qt headers
#include <QFuture>

using namespace Esri::ArcGISRuntime;

ViewshedLocation::ViewshedLocation(QQuickItem* parent /* = nullptr */):
  QQuickItem(parent)
{
}

void ViewshedLocation::init()
{
  // Register classes for QML
  qmlRegisterType<SceneQuickView>("Esri.Samples", 1, 0, "SceneView");
  qmlRegisterType<ViewshedLocation>("Esri.Samples", 1, 0, "ViewshedLocationSample");
}

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

  // Create a scene and give it to the SceneView
  m_sceneView = findChild<SceneQuickView*>("sceneView");

  Scene* scene = new Scene(BasemapStyle::ArcGISTopographic, this);
  Surface* surface = new Surface(this);
  surface->elevationSources()->append(
        new ArcGISTiledElevationSource(
          QUrl("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer"),
          this));
  scene->setBaseSurface(surface);
  m_sceneView->setArcGISScene(scene);

  // Add an Analysis Overlay
  m_analysisOverlay = new AnalysisOverlay(this);
  m_sceneView->analysisOverlays()->append(m_analysisOverlay);

  // set initial viewpoint
  setInitialViewpoint();

  // connect signals
  connectSignals();
}

void ViewshedLocation::setInitialViewpoint()
{
  // Set a viewpoint
  double x = 6.86088;
  double y = 45.3604;
  double z = 3582.55;
  Point point(x, y, z, SpatialReference(4326));
  double heading = 345;
  double pitch = 70;
  double roll = 0;
  Camera camera(point, heading, pitch, roll);
  m_sceneView->setViewpointCameraAsync(camera);
}

void ViewshedLocation::connectSignals()
{
  // on mouse click perform the location viewshed
  connect(m_sceneView, &SceneQuickView::mouseClicked, this, [this](QMouseEvent& event)
  {
    if (!m_locationViewshed)
      createViewshed(event.position().x(), event.position().y());
    else
    {
      const Point pt = m_sceneView->screenToBaseSurface(event.position().x(), event.position().y());
      m_locationViewshed->setLocation(pt);
    }
  });

  connect(m_sceneView, &SceneQuickView::mousePressedAndHeld, this, [this](QMouseEvent& event)
  {
    if (!m_locationViewshed)
      createViewshed(event.position().x(), event.position().y());

    m_calculating = true;
  });

  connect(m_sceneView, &SceneQuickView::mouseMoved, this, [this](QMouseEvent& event)
  {
    if (m_calculating)
    {
      const Point pt = m_sceneView->screenToBaseSurface(event.position().x(), event.position().y());
      m_locationViewshed->setLocation(pt);
    }
  });

  connect(m_sceneView, &SceneQuickView::mouseReleased, this, [this]
  {
    m_calculating = false;
  });
}

void ViewshedLocation::createViewshed(double x, double y)
{
  const Point pt = m_sceneView->screenToBaseSurface(x, y);

  // Create the Location Viewshed
  m_locationViewshed = new LocationViewshed(pt, m_heading, m_pitch,
                                            m_horizontalAngle, m_veriticalAngle,
                                            m_minDistance, m_maxDistance, this);
  m_locationViewshed->setVisible(m_viewshedVisible);

  // Add the Viewshed to the Analysis Overlay
  m_analysisOverlay->analyses()->append(m_locationViewshed);

  return;
}

// Getters/Setters for each Q_PROPERTY
bool ViewshedLocation::isViewshedVisible() const
{
  return m_viewshedVisible;
}

void ViewshedLocation::setViewshedVisible(bool viewshedVisible)
{
  if (m_locationViewshed)
  {
    if (m_locationViewshed->isVisible() == viewshedVisible)
      return;

    m_viewshedVisible = viewshedVisible;
    m_locationViewshed->setVisible(viewshedVisible);
  }
  else
  {
    if (m_viewshedVisible == viewshedVisible)
      return;

    m_viewshedVisible = viewshedVisible;
  }

  emit viewshedVisibleChanged();
}

bool ViewshedLocation::isFrustumOutlineVisible() const
{
  return m_locationViewshed ? m_locationViewshed->isFrustumOutlineVisible() : m_frustumVisible;
}

void ViewshedLocation::setFrustumOutlineVisible(bool frustumVisible)
{
  if (m_locationViewshed)
  {
    if (m_locationViewshed->isFrustumOutlineVisible() == frustumVisible)
      return;

    m_frustumVisible = frustumVisible;
    m_locationViewshed->setFrustumOutlineVisible(frustumVisible);
  }
  else
  {
    if (m_frustumVisible == frustumVisible)
      return;

    m_frustumVisible = frustumVisible;
  }

  emit frustumVisibleChanged();
}

double ViewshedLocation::minDistance() const
{
  return m_locationViewshed ? m_locationViewshed->minDistance() : m_minDistance;
}

void ViewshedLocation::setMinDistance(double minDistance)
{
  if (m_locationViewshed)
  {
    if (m_locationViewshed->minDistance() == minDistance)
      return;

    m_minDistance = minDistance;
    m_locationViewshed->setMinDistance(minDistance);
  }
  else
  {
    if (m_minDistance == minDistance)
      return;

    m_minDistance = minDistance;
  }

  emit minDistanceChanged();
}

double ViewshedLocation::maxDistance() const
{
  return m_locationViewshed ? m_locationViewshed->maxDistance() : m_maxDistance;
}

void ViewshedLocation::setMaxDistance(double maxDistance)
{
  m_maxDistance = maxDistance;

  if (m_locationViewshed)
  {
    if (m_locationViewshed->maxDistance() == maxDistance)
      return;

    m_maxDistance = maxDistance;
    m_locationViewshed->setMaxDistance(maxDistance);
  }
  else
  {
    if (m_maxDistance == maxDistance)
      return;

    m_maxDistance = maxDistance;
  }

  emit maxDistanceChanged();
}

double ViewshedLocation::horizontalAngle() const
{
  return m_locationViewshed ? m_locationViewshed->horizontalAngle() : m_horizontalAngle;
}

void ViewshedLocation::setHorizontalAngle(double horizontalAngle)
{
  if (m_locationViewshed)
  {
    if (m_locationViewshed->horizontalAngle() == horizontalAngle)
      return;

    m_horizontalAngle = horizontalAngle;
    m_locationViewshed->setHorizontalAngle(horizontalAngle);
  }
  else
  {
    if (m_horizontalAngle == horizontalAngle)
      return;

    m_horizontalAngle = horizontalAngle;
  }

  emit horizontalAngleChanged();
}

double ViewshedLocation::verticalAngle() const
{
  return m_locationViewshed ? m_locationViewshed->verticalAngle() : m_veriticalAngle;
}

void ViewshedLocation::setVerticalAngle(double verticalAngle)
{
  if (m_locationViewshed)
  {
    if (m_locationViewshed->verticalAngle() == verticalAngle)
      return;

    m_veriticalAngle = verticalAngle;
    m_locationViewshed->setVerticalAngle(verticalAngle);
  }
  else
  {
    if (m_veriticalAngle == verticalAngle)
      return;

    m_veriticalAngle = verticalAngle;
  }

  emit verticalAngleChanged();
}

double ViewshedLocation::heading() const
{
  return m_locationViewshed ? m_locationViewshed->heading() : m_heading;
}

void ViewshedLocation::setHeading(double heading)
{
  if (m_locationViewshed)
  {
    if (m_locationViewshed->heading() == heading)
      return;

    m_heading = heading;
    m_locationViewshed->setHeading(heading);
  }
  else
  {
    if (m_heading == heading)
      return;

    m_heading = heading;
  }

  emit headingChanged();
}

double ViewshedLocation::pitch() const
{
  return m_locationViewshed ? m_locationViewshed->pitch() : m_pitch;
}

void ViewshedLocation::setPitch(double pitch)
{
  if (m_locationViewshed)
  {
    if (m_locationViewshed->pitch() == pitch)
      return;

    m_pitch = pitch;
    m_locationViewshed->setPitch(pitch);
  }
  else
  {
    if (m_pitch == pitch)
      return;

    m_pitch = pitch;
  }

  emit pitchChanged();
}

QColor ViewshedLocation::visibleColor() const
{
  return LocationViewshed::visibleColor();
}

void ViewshedLocation::setVisibleColor(const QColor& visibleColor)
{
  if (LocationViewshed::visibleColor() == visibleColor)
    return;

  LocationViewshed::setVisibleColor(visibleColor);

  emit visibleColorChanged();
}

QColor ViewshedLocation::obstructedColor() const
{
  return LocationViewshed::obstructedColor();
}

void ViewshedLocation::setObstructedColor(const QColor& obstructedColor)
{
  if (LocationViewshed::obstructedColor() == obstructedColor)
    return;

  LocationViewshed::setObstructedColor(obstructedColor);

  emit obstructedColorChanged();
}

// [WriteFile Name=ViewshedLocation, Category=Analysis]
// [Legal]
// Copyright 2017 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 VIEWSHEDLOCATION_H
#define VIEWSHEDLOCATION_H

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

namespace Esri::ArcGISRuntime
{
class SceneQuickView;
class LocationViewshed;
class AnalysisOverlay;
}

class ViewshedLocation : public QQuickItem
{
  Q_OBJECT

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

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

  Q_PROPERTY(bool viewshedVisible READ isViewshedVisible WRITE setViewshedVisible NOTIFY viewshedVisibleChanged)
  Q_PROPERTY(bool frustumVisible READ isFrustumOutlineVisible WRITE setFrustumOutlineVisible NOTIFY frustumVisibleChanged)
  Q_PROPERTY(double minDistance READ minDistance WRITE setMinDistance NOTIFY minDistanceChanged)
  Q_PROPERTY(double maxDistance READ maxDistance WRITE setMaxDistance NOTIFY maxDistanceChanged)
  Q_PROPERTY(double horizontalAngle READ horizontalAngle WRITE setHorizontalAngle NOTIFY horizontalAngleChanged)
  Q_PROPERTY(double verticalAngle READ verticalAngle WRITE setVerticalAngle NOTIFY verticalAngleChanged)
  Q_PROPERTY(double heading READ heading WRITE setHeading NOTIFY headingChanged)
  Q_PROPERTY(double pitch READ pitch WRITE setPitch NOTIFY pitchChanged)
  Q_PROPERTY(QColor visibleColor READ visibleColor WRITE setVisibleColor NOTIFY visibleColorChanged)
  Q_PROPERTY(QColor obstructedColor READ obstructedColor WRITE setObstructedColor NOTIFY obstructedColorChanged)

  bool isViewshedVisible() const;
  void setViewshedVisible(bool viewshedVisible);

  bool isFrustumOutlineVisible() const;
  void setFrustumOutlineVisible(bool frustumVisible);

  double minDistance() const;
  void setMinDistance(double minDistance);

  double maxDistance() const;
  void setMaxDistance(double maxDistance);

  double horizontalAngle() const;
  void setHorizontalAngle(double horizontalAngle);

  double verticalAngle() const;
  void setVerticalAngle(double verticalAngle);

  double heading() const;
  void setHeading(double heading);

  double pitch() const;
  void setPitch(double pitch);

  QColor visibleColor() const;
  void setVisibleColor(const QColor& visibleColor);

  QColor obstructedColor() const;
  void setObstructedColor(const QColor& obstructedColor);

signals:
  void viewshedVisibleChanged();
  void frustumVisibleChanged();
  void minDistanceChanged();
  void maxDistanceChanged();
  void horizontalAngleChanged();
  void verticalAngleChanged();
  void headingChanged();
  void pitchChanged();
  void visibleColorChanged();
  void obstructedColorChanged();

private:
  void connectSignals();
  void setInitialViewpoint();
  void createViewshed(double x, double y);

  Esri::ArcGISRuntime::SceneQuickView* m_sceneView = nullptr;
  Esri::ArcGISRuntime::LocationViewshed* m_locationViewshed = nullptr;
  Esri::ArcGISRuntime::AnalysisOverlay* m_analysisOverlay = nullptr;

  bool m_viewshedVisible = true;
  bool m_frustumVisible = false;
  double m_minDistance = 50;
  double m_maxDistance = 1000;
  double m_horizontalAngle = 45;
  double m_veriticalAngle = 90;
  double m_heading = 0;
  double m_pitch = 90;
  bool m_calculating = false;
};

#endif // VIEWSHEDLOCATION_H

// [WriteFile Name=ViewshedLocation, Category=Analysis]
// [Legal]
// Copyright 2017 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 QtQuick.Window
import Esri.Samples

ViewshedLocationSample {
    id: viewshedSample
    clip: true
    width: 800
    height: 600


    SceneView {
        id: sceneView
        objectName: "sceneView"
        anchors.fill: parent

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

        Rectangle {
            anchors {
                right: parent.right
                bottom: sceneView.attributionTop
                margins: 10
            }
            visible: !optionPanel.visible
            width: 45
            height: width
            color: "white"
            radius: 25

            Image {
                anchors.centerIn: parent
                source: "qrc:/Samples/Analysis/ViewshedLocation/settings.png"
                width: 40
                height: width
            }

            MouseArea {
                anchors.fill: parent
                onClicked: optionPanel.visible = true;
            }
        }


        Rectangle {
            id: optionPanel
            anchors {
                right: parent.right
                top: parent.top
                bottom: sceneView.attributionTop
            }
            width: 260
            visible: false
            color: "white"
            opacity: 0.85

            Flickable {
                anchors {
                    fill: parent
                    margins: 5
                }
                contentWidth: parent.width
                contentHeight: parent.height
                flickableDirection: Flickable.VerticalFlick

                Column {
                    id: optionColumn
                    spacing: 10
                    width: optionPanel.width

                    Item {
                        width: parent.width
                        height: 25

                        Text {
                            text: "Viewshed Options"
                            anchors.horizontalCenter: parent.horizontalCenter
                            font.pixelSize: 18
                            font.underline: true

                        }

                        Rectangle {
                            anchors {
                                right: parent.right
                                verticalCenter: parent.verticalCenter
                            }
                            width: 45
                            height: width
                            color: "transparent"

                            Image {
                                anchors.centerIn: parent
                                source: "qrc:/Samples/Analysis/ViewshedLocation/close.png"
                                width: 40
                                height: width
                            }

                            MouseArea {
                                anchors.fill: parent
                                onClicked: optionPanel.visible = false;
                            }
                        }
                    }

                    Item {
                        width: parent.width
                        height: 25

                        Text {
                            anchors.verticalCenter: parent.verticalCenter
                            width: parent.width * 0.75
                            text: qsTr("Viewshed Visible")
                            font.pixelSize: 14
                        }

                        Switch {
                            anchors {
                                right: parent.right
                                margins: 10
                                verticalCenter: parent.verticalCenter
                            }
                            checked: true
                            onCheckedChanged: viewshedSample.viewshedVisible = checked;
                        }
                    }

                    Item {
                        width: parent.width
                        height: 25

                        Text {
                            anchors.verticalCenter: parent.verticalCenter
                            width: parent.width * 0.75
                            text: qsTr("Frustum Outline Visible")
                            font.pixelSize: 14
                        }

                        Switch {
                            anchors {
                                right: parent.right
                                margins: 10
                                verticalCenter: parent.verticalCenter
                            }
                            checked: false
                            onCheckedChanged: viewshedSample.frustumVisible = checked;
                        }
                    }

                    ViewshedSlider {
                        titleText: qsTr("Min Distance (m)")
                        parameterValue: viewshedSample.minDistance
                        minValue: 1
                        maxValue: 2000
                        onParameterValueChanged: viewshedSample.minDistance = parameterValue;
                    }

                    ViewshedSlider {
                        titleText: qsTr("Max Distance (m)")
                        parameterValue: viewshedSample.maxDistance
                        minValue: 1
                        maxValue: 2000
                        onParameterValueChanged: viewshedSample.maxDistance = parameterValue;
                    }

                    ViewshedSlider {
                        titleText: qsTr("Vertical Angle")
                        parameterValue: viewshedSample.verticalAngle
                        minValue: 1
                        maxValue: 120
                        onParameterValueChanged: viewshedSample.verticalAngle = parameterValue;
                    }

                    ViewshedSlider {
                        titleText: qsTr("Horizontal Angle")
                        parameterValue: viewshedSample.horizontalAngle
                        minValue: 1
                        maxValue: 120
                        onParameterValueChanged: viewshedSample.horizontalAngle = parameterValue;
                    }

                    ViewshedSlider {
                        titleText: qsTr("Heading")
                        parameterValue: viewshedSample.heading
                        minValue: 1
                        maxValue: 359
                        onParameterValueChanged: viewshedSample.heading = parameterValue;
                    }

                    ViewshedSlider {
                        titleText: qsTr("Pitch")
                        parameterValue: viewshedSample.pitch
                        minValue: 1
                        maxValue: 179
                        onParameterValueChanged: viewshedSample.pitch = parameterValue;
                    }

                    Row {
                        width: parent.width
                        height: 25
                        spacing: 5

                        Text {
                            anchors.verticalCenter: parent.verticalCenter
                            width: parent.width * 0.75
                            text: qsTr("Visible Color")
                            font.pixelSize: 14
                        }

                        Rectangle {
                            anchors {
                                margins: 10
                                verticalCenter: parent.verticalCenter
                            }
                            width: 25
                            height: width
                            border {
                                color: "black"
                                width: 1
                            }
                            color: viewshedSample.visibleColor
                            radius: 4

                            MouseArea {
                                anchors.fill: parent
                                onClicked: {
                                    visibleColorDialog.open();
                                }
                            }
                        }
                    }

                    Row {
                        width: parent.width
                        height: 25
                        spacing: 5

                        Text {
                            anchors.verticalCenter: parent.verticalCenter
                            width: parent.width * 0.75
                            text: qsTr("Obstructed Color")
                            font.pixelSize: 14
                        }

                        Rectangle {
                            anchors {
                                margins: 10
                                verticalCenter: parent.verticalCenter
                            }
                            width: 25
                            height: width
                            border {
                                color: "black"
                                width: 1
                            }
                            color: viewshedSample.obstructedColor
                            radius: 4

                            MouseArea {
                                anchors.fill: parent
                                onClicked: {
                                    obstructedColorDialog.open();
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    ColorDialog {
        id: visibleColorDialog
        modal: true
        x: Math.round(parent.width - width) / 2
        y: Math.round(parent.height - height) / 2
        onAccepted: {
            viewshedSample.visibleColor = visibleColorDialog.color;
        }
        onOpened: {
            setColor(viewshedSample.visibleColor);
        }
    }

    ColorDialog {
        id: obstructedColorDialog
        modal: true
        x: Math.round(parent.width - width) / 2
        y: Math.round(parent.height - height) / 2
        onAccepted: {
            viewshedSample.obstructedColor = obstructedColorDialog.color;
        }
        onOpened: {
            setColor(viewshedSample.obstructedColor);
        }
    }
}

// [WriteFile Name=ViewshedLocation, Category=Analysis]
// [Legal]
// Copyright 2017 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

Column {
    id: root
    width: parent.width
    spacing: 5

    property string titleText
    property real parameterValue
    property real minValue: 1
    property real maxValue: 179

    Text {
        width: 80
        text: titleText
        font.pixelSize: 14
    }

    Row {
        width: parent.width
        height: 25
        spacing: 5

        Slider {
            anchors.verticalCenter: parent.verticalCenter
            orientation: Qt.Horizontal
            from: minValue
            to: maxValue
            width: parent.width * 0.75
            value: parameterValue

            onValueChanged: {
                parameterValue = value;
            }
        }

        Text {
            anchors.verticalCenter: parent.verticalCenter
            horizontalAlignment: Text.AlignRight
            text: Math.round(parameterValue)
            font.pixelSize: 14
        }
    }
}

// [Legal]
// Copyright 2017 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]

// sample headers
#include "ViewshedLocation.h"

// ArcGIS Maps SDK headers
#include "ArcGISRuntimeEnvironment.h"

// Qt headers
#include <QCommandLineParser>
#include <QDir>
#include <QGuiApplication>
#include <QQmlEngine>
#include <QQuickView>
#include <QSurfaceFormat>

// Platform specific headers
#ifdef Q_OS_WIN
#include <Windows.h>
#endif

#define STRINGIZE(x) #x
#define QUOTE(x) STRINGIZE(x)

int main(int argc, char *argv[])
{
  Esri::ArcGISRuntime::ArcGISRuntimeEnvironment::setUseLegacyAuthentication(false);
#if defined(Q_OS_LINUX) && !defined(Q_OS_ANDROID)
  // Linux requires 3.2 OpenGL Context
  // in order to instance 3D symbols
  QSurfaceFormat fmt = QSurfaceFormat::defaultFormat();
  fmt.setVersion(3, 2);
  QSurfaceFormat::setDefaultFormat(fmt);
#endif

  QGuiApplication app(argc, argv);
  app.setApplicationName(QString("Viewshed Location"));

  // Use of ArcGIS location services, such as basemap styles, geocoding, and routing services,
  // requires an access token. For more information see
  // https://links.esri.com/arcgis-runtime-security-auth.

  // The following methods grant an access token:

  // 1. User authentication: Grants a temporary access token associated with a user's ArcGIS account.
  // To generate a token, a user logs in to the app with an ArcGIS account that is part of an
  // organization in ArcGIS Online or ArcGIS Enterprise.

  // 2. API key authentication: Get a long-lived access token that gives your application access to
  // ArcGIS location services. Go to the tutorial at https://links.esri.com/create-an-api-key.
  // Copy the API Key access token.

  const QString accessToken = QString("");

  if (accessToken.isEmpty())
  {
      qWarning() << "Use of ArcGIS location services, such as the basemap styles service, requires" <<
                    "you to authenticate with an ArcGIS account or set the API Key property.";
  }
  else
  {
      Esri::ArcGISRuntime::ArcGISRuntimeEnvironment::setApiKey(accessToken);
  }

  // Initialize the sample
  ViewshedLocation::init();

  // Initialize application view
  QQuickView view;
  view.setResizeMode(QQuickView::SizeRootObjectToView);

  QString arcGISRuntimeImportPath = QUOTE(ARCGIS_RUNTIME_IMPORT_PATH);

#if defined(LINUX_PLATFORM_REPLACEMENT)
  // on some linux platforms the string 'linux' is replaced with 1
  // fix the replacement paths which were created
  QString replaceString = QUOTE(LINUX_PLATFORM_REPLACEMENT);
  arcGISRuntimeImportPath = arcGISRuntimeImportPath.replace(replaceString, "linux", Qt::CaseSensitive);
#endif

  // Add the import Path
  view.engine()->addImportPath(QDir(QCoreApplication::applicationDirPath()).filePath("qml"));
  // Add the Runtime and Extras path
  view.engine()->addImportPath(arcGISRuntimeImportPath);

  // Set the source
  view.setSource(QUrl("qrc:/Samples/Analysis/ViewshedLocation/ViewshedLocation.qml"));

  view.show();

  return app.exec();
}