Download a preplanned map area

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
// [WriteFile Name=DownloadPreplannedMap, Category=Maps]
// [Legal]
// Copyright 2019 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

#include "DownloadPreplannedMap.h"

#include "DownloadPreplannedOfflineMapJob.h"
#include "DownloadPreplannedOfflineMapResult.h"
#include "Graphic.h"
#include "Map.h"
#include "MapQuickView.h"
#include "OfflineMapTask.h"
#include "PreplannedMapArea.h"
#include "PreplannedMapAreaListModel.h"
#include "SimpleLineSymbol.h"
#include "SimpleRenderer.h"
#include "Error.h"
#include "MapTypes.h"
#include "GraphicsOverlayListModel.h"
#include "GraphicListModel.h"
#include "SymbolTypes.h"
#include "OfflineMapTypes.h"
#include "TaskTypes.h"
#include "MobileMapPackage.h"
#include "GraphicsOverlay.h"
#include "PortalItem.h"
#include "Geometry.h"

#include <QFuture>
#include <QUuid>

using namespace Esri::ArcGISRuntime;

DownloadPreplannedMap::DownloadPreplannedMap(QObject* parent /* = nullptr */):
  QObject(parent),
  m_graphicsOverlay(new GraphicsOverlay(this)),
  m_portalItem(new PortalItem("acc027394bc84c2fb04d1ed317aac674", this)),
  m_lineSymbol(new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, QColor(Qt::red), 5, this)),
  m_busy(true)
{
  m_graphicsOverlay->setRenderer(new SimpleRenderer(m_lineSymbol, this));

  connect(m_portalItem, &PortalItem::doneLoading, this, [this] ()
  {
    m_offlineMapTask = new OfflineMapTask(m_map, this);
    m_mapView->graphicsOverlays()->append(m_graphicsOverlay);

    connect(m_offlineMapTask, &OfflineMapTask::doneLoading, this, [this] ()
    {
      // fetch preplanned map areas from the portal item
      m_offlineMapTask->preplannedMapAreasAsync().then(this,
      [this](const QList<PreplannedMapArea*>&)
      {
        loadPreplannedMapAreas();
      });
    });

    // Load offline map task.
    m_offlineMapTask->load();
  });

  m_map = new Map(m_portalItem, this);
}

DownloadPreplannedMap::~DownloadPreplannedMap() = default;

void DownloadPreplannedMap::init()
{
  // Register the map view for QML
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<DownloadPreplannedMap>("Esri.Samples", 1, 0, "DownloadPreplannedMapSample");
  qmlRegisterUncreatableType<PreplannedMapAreaListModel>("Esri.Samples", 1, 0, "AbstractListModel", "DownloadPreplannedMapSample");
}

MapQuickView* DownloadPreplannedMap::mapView() const
{
  return m_mapView;
}

// Set the view (created in QML)
void DownloadPreplannedMap::setMapView(MapQuickView* mapView)
{
  if (!mapView || mapView == m_mapView)
    return;

  m_mapView = mapView;
  m_mapView->setMap(m_map);

  emit mapViewChanged();
}

void DownloadPreplannedMap::checkIfMapAreaIsLoaded(int index)
{
  if (!m_offlineMapTask)
    return;

  if (m_offlineMapTask->preplannedMapAreaList()->isEmpty())
    return;

  PreplannedMapArea* mapArea = m_offlineMapTask->preplannedMapAreaList()->at(index);

  if (!mapArea || mapArea->loadStatus() != LoadStatus::Loaded)
    return;

  m_busy = true;
  m_viewingOnlineMaps = false;
  emit busyChanged();
  emit viewingOnlineMapsChanged();

  if(m_graphicsOverlay->isVisible())
    m_graphicsOverlay->setVisible(false);

  loadSelectedMap(index);
}

void DownloadPreplannedMap::loadSelectedMap(int index)
{
  checkIfMapExists(index);

  if (m_preplannedMapExists)
    loadExistingPreplannedMap();
  else
    m_offlineMapTask->createDefaultDownloadPreplannedOfflineMapParametersAsync(m_offlineMapTask->preplannedMapAreaList()->at(index)).then(this,
    [this](const DownloadPreplannedOfflineMapParameters& parameters)
    {
      m_params = parameters;

      /* Set the update mode to not receive updates.
       * Other options:
       * SyncWithFeatureServices - changes will be synced directly with the
       * underlying feature services.
       * DownloadScheduledUpdates - schedulded, read-only updates will be
       * downloaded and applied to the local geodatabase. */
      m_params.setUpdateMode(PreplannedUpdateMode::NoUpdates);

      m_preplannedMapJob = m_offlineMapTask->downloadPreplannedOfflineMap(m_params, m_path);
      connect(m_preplannedMapJob, &DownloadPreplannedOfflineMapJob::progressChanged, this, [this] ()
      {
        m_percentDownloaded = .01 * m_preplannedMapJob->progress();
        emit percentDownloadedChanged();
      });
      connect(m_preplannedMapJob, &DownloadPreplannedOfflineMapJob::jobDone, this, &DownloadPreplannedMap::onDownloadPreplannedMapJobCompleted);

      // Start job to take preplanned map area offline.
      m_preplannedMapJob->start();
      m_busy = false;
      emit busyChanged();
    });
}

void DownloadPreplannedMap::checkIfMapExists(int index)
{
  if (!m_offlineMapTask)
    return;

  if (m_offlineMapTask->preplannedMapAreaList()->isEmpty())
    return;

  PreplannedMapArea* mapArea = m_offlineMapTask->preplannedMapAreaList()->at(index);

  if (!mapArea || mapArea->loadStatus() != LoadStatus::Loaded)
    return;

  m_path = QString(m_tempPath.path() + "/" + mapArea->portalItem()->title());
  QDir tempDir(m_path);

  m_preplannedMapExists = tempDir.exists();
  emit preplannedMapExistsChanged();

  if (m_viewingOnlineMaps)
    m_mapView->setViewpointGeometryAsync(mapArea->areaOfInterest());
}

void DownloadPreplannedMap::showOnlineMap(int index)
{
  m_viewingOnlineMaps = true;
  emit viewingOnlineMapsChanged();
  m_mapView->setMap(m_map);
  const Geometry areaOfInterest = m_offlineMapTask->preplannedMapAreaList()->at(index)->areaOfInterest();
  m_mapView->setViewpointGeometryAsync(areaOfInterest);
  m_graphicsOverlay->setVisible(true);
}

void DownloadPreplannedMap::onDownloadPreplannedMapJobCompleted()
{
  if (m_preplannedMapJob->jobStatus() != JobStatus::Succeeded)
    return;

  m_mapView->setMap(m_preplannedMapJob->result()->offlineMap());
  m_preplannedMapExists = true;
  emit preplannedMapExistsChanged();
  m_viewingOnlineMaps = false;
  emit viewingOnlineMapsChanged();
}

void DownloadPreplannedMap::loadPreplannedMapAreas()
{
  m_preplannedList = m_offlineMapTask->preplannedMapAreaList();
  m_busy = false;
  emit preplannedListChanged();
  emit busyChanged();
  for (PreplannedMapArea* mapArea : *m_preplannedList)
  {
    connect(mapArea, &PreplannedMapArea::doneLoading, this, [this, mapArea] (const Error& e)
    {
      if (!e.isEmpty())
      {
        qDebug() << e.message() << " - " << e.additionalMessage();
        return;
      }

      Graphic* areaOfInterest = new Graphic(mapArea->areaOfInterest(), this);
      m_graphicsOverlay->graphics()->append(areaOfInterest);
    });

    mapArea->load();
  }
}

void DownloadPreplannedMap::loadExistingPreplannedMap()
{
  if (m_mmpk)
  {
    delete m_mmpk;
    m_mmpk = nullptr;
  }

  m_mmpk = new MobileMapPackage(m_path, this);

  connect(m_mmpk, &MobileMapPackage::doneLoading, this, [this] (const Error& e)
  {
    if (!e.isEmpty())
      qDebug() << e.message() << " - " << e.additionalMessage();

    m_mapView->setMap(m_mmpk->maps().at(0));
    m_busy = false;
    emit busyChanged();
    m_graphicsOverlay->setVisible(false);
    m_viewingOnlineMaps = false;
    emit viewingOnlineMapsChanged();
  });

  m_mmpk->load();
}