Map rotation

// [WriteFile Name=MapRotation, Category=Maps]
// [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 "MapRotation.h"

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

// Qt headers
#include <QFuture>

using namespace Esri::ArcGISRuntime;

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

MapRotation::~MapRotation() = default;

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

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

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

    // create a new basemap instance
    Basemap* basemap = new Basemap(BasemapStyle::ArcGISStreets, this);
    // create a new map instance and set the initial viewpoint
    m_map = new Map(basemap, this);
    Viewpoint initialViewpoint(Point(-11070722, 4658720, SpatialReference(102100)), 55151630);
    m_map->setInitialViewpoint(initialViewpoint);
    // set map on the map view
    m_mapView->setMap(m_map);
}

void MapRotation::setMapViewRotation(double degrees)
{
    m_mapView->setViewpointRotationAsync(degrees);
}

// [WriteFile Name=MapRotation, Category=Maps]
// [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 MAP_ROTATION_H
#define MAP_ROTATION_H

// Qt headers
#include <QQuickItem>

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

class MapRotation : public QQuickItem
{
  Q_OBJECT

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

  void componentComplete() override;
  static void init();
  Q_INVOKABLE void setMapViewRotation(double degrees);

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

#endif // MAP_ROTATION_H

// [WriteFile Name=MapRotation, Category=Maps]
// [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

MapRotationSample {
    id: mapRotationSample
    width: 800
    height: 600

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

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

        // Slider UI presentation at bottom
        Rectangle {
            anchors {
                bottom: mapView.attributionTop
                horizontalCenter: parent.horizontalCenter
            }

            width: childrenRect.width
            height: childrenRect.height
            radius: 10
            opacity: 0.8

            // sliderCombo: A slider and text for its value
            Row {
                id: sliderCombo
                spacing: 5

                Slider {
                    id: slider1
                    opacity: 0.7
                    anchors {
                        verticalCenter: parent.verticalCenter
                    }
                    // Slider controls degrees of rotation
                    from: 0.0
                    to: 360.0
                    onPressedChanged: {
                        // Call C++ invokable function to change the rotation
                        // of the map view
                        mapRotationSample.setMapViewRotation(value);
                    }
                }

                Text {
                    anchors {
                        verticalCenter: parent.verticalCenter
                        margins: 5
                    }
                    horizontalAlignment: TextInput.AlignHCenter
                    font.pixelSize: 20
                    text: slider1.value.toPrecision(3);
                }
            }
        }
    }
}