Feature layer change renderer

// [WriteFile Name=FeatureLayerChangeRenderer, Category=Features]
// [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 "FeatureLayerChangeRenderer.h"

// ArcGIS Maps SDK headers
#include "Basemap.h"
#include "Envelope.h"
#include "FeatureLayer.h"
#include "LayerListModel.h"
#include "Map.h"
#include "MapQuickView.h"
#include "MapTypes.h"
#include "MapViewTypes.h"
#include "ServiceFeatureTable.h"
#include "SimpleLineSymbol.h"
#include "SimpleRenderer.h"
#include "SpatialReference.h"
#include "SymbolTypes.h"
#include "Viewpoint.h"

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

using namespace Esri::ArcGISRuntime;

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

FeatureLayerChangeRenderer::~FeatureLayerChangeRenderer() = default;

void FeatureLayerChangeRenderer::init()
{
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<FeatureLayerChangeRenderer>("Esri.Samples", 1, 0, "FeatureLayerChangeRendererSample");
}

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

  // find QML MapView component
  m_mapView = findChild<MapQuickView*>("mapView");
  m_mapView->setWrapAroundMode(WrapAroundMode::Disabled);

  // Create a map using the topographic basemap
  m_map = new Map(BasemapStyle::ArcGISTopographic, this);
  m_map->setInitialViewpoint(Viewpoint(Envelope(-13075816.4047166, 4014771.46954516, -13073005.6797177, 4016869.78617381, SpatialReference(102100))));

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

  // create the feature table
  ServiceFeatureTable* featureTable = new ServiceFeatureTable(QUrl("https://sampleserver6.arcgisonline.com/arcgis/rest/services/PoolPermits/FeatureServer/0"), this);
  // create the feature layer using the feature table
  m_featureLayer = new FeatureLayer(featureTable, this);

  connect(m_featureLayer, &FeatureLayer::loadStatusChanged, this, [this](LoadStatus loadStatus)
  {
    loadStatus == LoadStatus::Loaded ? m_initialized = true : m_initialized = false;
    emit layerInitializedChanged();
  });

  // add the feature layer to the map
  m_map->operationalLayers()->append(m_featureLayer);
}

bool FeatureLayerChangeRenderer::layerInitialized() const
{
  return m_initialized;
}

void FeatureLayerChangeRenderer::changeRenderer()
{
  if (m_stateChanged)
  {
    m_featureLayer->resetRenderer();
    m_stateChanged = false;
  }
  else
  {
    // create a line symbol
    SimpleLineSymbol* sls = new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, QColor(0, 0, 255, 204), 2.0f, this);
    // create a renderer with the symbol above
    SimpleRenderer* simpleRenderer = new SimpleRenderer(sls, this);
    // change the renderer with the renderer created above
    m_featureLayer->setRenderer(simpleRenderer);
    m_stateChanged = true;
  }
}

// [WriteFile Name=FeatureLayerChangeRenderer, Category=Features]
// [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 FEATURE_LAYER_CHANGE_RENDERER_H
#define FEATURE_LAYER_CHANGE_RENDERER_H

// Qt headers
#include <QQuickItem>

namespace Esri::ArcGISRuntime
{
  class Map;
  class MapQuickView;
  class FeatureLayer;
}

class FeatureLayerChangeRenderer : public QQuickItem
{
  Q_OBJECT

  Q_PROPERTY(bool layerInitialized READ layerInitialized NOTIFY layerInitializedChanged)

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

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

signals:
  void layerInitializedChanged();

private:
  bool layerInitialized() const;

private:
  Esri::ArcGISRuntime::Map* m_map = nullptr;
  Esri::ArcGISRuntime::MapQuickView* m_mapView = nullptr;
  Esri::ArcGISRuntime::FeatureLayer* m_featureLayer = nullptr;
  bool m_initialized = false;
  bool m_stateChanged = false;
};

#endif // FEATURE_LAYER_CHANGE_RENDERER_H

// [WriteFile Name=FeatureLayerChangeRenderer, Category=Features]
// [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

FeatureLayerChangeRendererSample {
    id: changeRendererSample
    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();
        }
    }

    Row {
        anchors {
            bottom: parent.bottom
            left: parent.left
            right: parent.right
            margins: 5
            bottomMargin: 25
        }
        spacing: 5

        // button to change renderer
        Button {
            text: "Change Renderer"
            enabled: changeRendererSample.layerInitialized
            onClicked: {
                // Call C++ invokable function to change the layer's renderer
                changeRendererSample.changeRenderer();
            }
        }
    }
}

// [Legal]
// Copyright 2015 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 "FeatureLayerChangeRenderer.h"

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

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

// 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);
  QGuiApplication app(argc, argv);
  app.setApplicationName(QString("FeatureLayerChangeRenderer"));

  // 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
  FeatureLayerChangeRenderer::init();

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

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

  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 Runtime and Extras path
  view.engine()->addImportPath(arcGISRuntimeImportPath);

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

  view.show();

  return app.exec();
}