Feature collection layer (query)

// [WriteFile Name=FeatureCollectionLayerQuery, Category=Layers]
// [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 "FeatureCollectionLayerQuery.h"

// ArcGIS Maps SDK headers
#include "FeatureCollection.h"
#include "FeatureCollectionLayer.h"
#include "FeatureCollectionTable.h"
#include "FeatureQueryResult.h"
#include "LayerListModel.h"
#include "Map.h"
#include "MapQuickView.h"
#include "MapTypes.h"
#include "QueryParameters.h"
#include "ServiceFeatureTable.h"

// Qt headers
#include <QFuture>
#include <QString>
#include <QUuid>

using namespace Esri::ArcGISRuntime;

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

void FeatureCollectionLayerQuery::init()
{
  // Register the map view for QML
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<FeatureCollectionLayerQuery>("Esri.Samples", 1, 0, "FeatureCollectionLayerQuerySample");
}

bool FeatureCollectionLayerQuery::busy() const
{
  return m_busy;
}

void FeatureCollectionLayerQuery::setBusy(bool val)
{
  if (val == m_busy)
  {
    return;
  }

  m_busy = val;
  emit busyChanged();
}

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

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

  // Create a map using the oceans basemap
  m_map = new Map(BasemapStyle::ArcGISOceans, this);

  // Set map to map view
  m_mapView->setMap(m_map);

  //initialize service feature table to be queried
  m_featureTable =
    new ServiceFeatureTable(QUrl(QStringLiteral("https://sampleserver6.arcgisonline.com/arcgis/rest/services/Wildfire/FeatureServer/0")), this);

  //create query parameters
  QueryParameters queryParams;

  // 1=1 will give all the features from the table
  queryParams.setWhereClause("1=1");

  m_featureTable->queryFeaturesAsync(queryParams)
    .then(this, [this](FeatureQueryResult* featureQueryResult)
  {
    setBusy(false);

    if (!featureQueryResult)
    {
      return;
    }

    //create a feature collection table fromt the query results
    FeatureCollectionTable* featureCollectionTable = new FeatureCollectionTable(featureQueryResult, this);

    //create a feature collection from the above feature collection table
    FeatureCollection* featureCollection = new FeatureCollection(QList<FeatureCollectionTable*>{featureCollectionTable}, this);

    //create a feature collection layer
    FeatureCollectionLayer* featureCollectionLayer = new FeatureCollectionLayer(featureCollection, this);

    //add the layer to the operational layers array
    m_map->operationalLayers()->append(featureCollectionLayer);
  });
  setBusy(true);
}

// [WriteFile Name=FeatureCollectionLayerQuery, Category=Layers]
// [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 FEATURECOLLECTIONLAYERQUERY_H
#define FEATURECOLLECTIONLAYERQUERY_H

// Qt headers
#include <QQuickItem>

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

class FeatureCollectionLayerQuery : public QQuickItem
{
  Q_OBJECT

  Q_PROPERTY(bool busy READ busy NOTIFY busyChanged)

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

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

signals:
  void busyChanged();

private:
  bool busy() const;
  void setBusy(bool val);

  Esri::ArcGISRuntime::Map* m_map = nullptr;
  Esri::ArcGISRuntime::MapQuickView* m_mapView = nullptr;
  Esri::ArcGISRuntime::ServiceFeatureTable* m_featureTable = nullptr;
  bool m_busy = false;
};

#endif // FEATURECOLLECTIONLAYERQUERY_H

// [WriteFile Name=FeatureCollectionLayerQuery, Category=Layers]
// [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 Esri.Samples

FeatureCollectionLayerQuerySample {
    id: rootRectangle
    clip: true
    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();
        }
    }

    BusyIndicator {
        anchors.centerIn: parent
        visible: busy
    }
}

// [WriteFile Name=FeatureCollectionLayerQuery, Category=Layers]
// [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 "FeatureCollectionLayerQuery.h"

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

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

// 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[])
{
  QGuiApplication app(argc, argv);
  app.setApplicationName(QString("FeatureCollectionLayerQuery"));

  // 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
  FeatureCollectionLayerQuery::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/Layers/FeatureCollectionLayerQuery/FeatureCollectionLayerQuery.qml"));

  view.show();

  return app.exec();
}