Set initial map area

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// [WriteFile Name=SetInitialMapArea, 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 "SetInitialMapArea.h"

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

using namespace Esri::ArcGISRuntime;

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

SetInitialMapArea::~SetInitialMapArea() = default;

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

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

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

  // create a new basemap instance
  Basemap* basemap = new Basemap(BasemapStyle::ArcGISImageryStandard, this);
  // create a new map instance
  m_map = new Map(basemap, this);
  // set the initial viewpoint
  Envelope envelope(-12211308.778729, 4645116.003309, -12208257.879667, 4650542.535773, SpatialReference(102100));
  m_map->setInitialViewpoint(Viewpoint(envelope));
  // set map on the map view
  m_mapView->setMap(m_map);
}