Style WMS layer

// [WriteFile Name=StyleWmsLayer, Category=Layers]
// [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]

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

// sample headers
#include "StyleWmsLayer.h"

// ArcGIS Maps SDK headers
#include "Envelope.h"
#include "Error.h"
#include "LayerListModel.h"
#include "Map.h"
#include "MapQuickView.h"
#include "SpatialReference.h"
#include "WmsLayer.h"
#include "WmsLayerInfo.h"
#include "WmsSublayer.h"

// Qt headers
#include <QFuture>

using namespace Esri::ArcGISRuntime;

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

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

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

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

  // Create a map with spatial reference appropriate for the WMS service (North American Datum 83)
  m_map = new Map(SpatialReference(26915), this);
  m_map->setMinScale(7'000'000);

  // Add a WMS Layer
  WmsLayer* wmsLayer = new WmsLayer(QUrl("https://imageserver.gisdata.mn.gov/cgi-bin/mncomp?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities"), QStringList{"mncomp"}, this);
  m_map->operationalLayers()->append(wmsLayer);

  // connect to the doneLoading signal of the WMS Layer
  connect(wmsLayer, &WmsLayer::doneLoading, this, [this, wmsLayer](const Error& e)
  {
    if (!e.isEmpty())
      return;

    // zoom to the layer
    m_mapView->setViewpointGeometryAsync(wmsLayer->fullExtent());

    // get the subLayer
    if (!wmsLayer->sublayers().empty())
      m_wmsSublayer = wmsLayer->sublayers().at(0);
  });

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

void StyleWmsLayer::setCurrentStyle(int index)
{
  if (!m_wmsSublayer)
    return;

  // get the styles
  const QStringList styles = m_wmsSublayer->sublayerInfo().styles();
  if (styles.length() < index + 1)
    return;

  // get the style
  const QString style = styles.at(index);

  // set the style on the WMS Sublayer
  m_wmsSublayer->setCurrentStyle(style);
}

// [WriteFile Name=StyleWmsLayer, Category=Layers]
// [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]

#ifndef STYLEWMSLAYER_H
#define STYLEWMSLAYER_H

// Qt headers
#include <QQuickItem>

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

class StyleWmsLayer : public QQuickItem
{
  Q_OBJECT

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

  void componentComplete() override;
  static void init();
  Q_INVOKABLE void setCurrentStyle(int index);

private:
  Esri::ArcGISRuntime::Map* m_map = nullptr;
  Esri::ArcGISRuntime::MapQuickView* m_mapView = nullptr;
  Esri::ArcGISRuntime::WmsSublayer* m_wmsSublayer = nullptr;
};

#endif // STYLEWMSLAYER_H

// [WriteFile Name=StyleWmsLayer, Category=Layers]
// [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.Window
import QtQuick.Controls
import Esri.Samples

StyleWmsLayerSample {
    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();
        }
    }

    Rectangle {
        anchors {
            fill: controlColumn
            margins: -5
        }
        color: "lightgray"
        radius: 5
        opacity: 0.75
    }

    ButtonGroup {
        buttons: controlColumn.children
    }

    Column {
        id: controlColumn
        anchors {
            left: parent.left
            top: parent.top
            margins: 10
        }
        spacing: 5

        RadioButton {
            text: "Default"
            checked: true
            onCheckedChanged: {
                if (checked) {
                    // set the style string on the sublayer
                    setCurrentStyle(0);
                }
            }
        }

        RadioButton {
            text: "Contrast Stretch"
            onCheckedChanged: {
                if (checked) {
                    // set the style string on the sublayer
                    setCurrentStyle(1);
                }
            }
        }
    }
}

// [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]

// sample headers
#include "StyleWmsLayer.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[])
{
  Esri::ArcGISRuntime::ArcGISRuntimeEnvironment::setUseLegacyAuthentication(false);
  QGuiApplication app(argc, argv);
  app.setApplicationName(QString("StyleWmsLayer"));

  // 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
  StyleWmsLayer::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/StyleWmsLayer/StyleWmsLayer.qml"));

  view.show();

  return app.exec();
}