Control annotation sublayer visibility

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
// [WriteFile Name=ControlAnnotationSublayerVisibility, Category=DisplayInformation]
// [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

// sample headers
#include "ControlAnnotationSublayerVisibility.h"

// ArcGIS Maps SDK headers
#include "AnnotationSublayer.h"
#include "Error.h"
#include "Layer.h"
#include "LayerListModel.h"
#include "Map.h"
#include "MapQuickView.h"
#include "MapTypes.h"
#include "MobileMapPackage.h"

// Qt headers
#include <QStandardPaths>
#include <QtCore/qglobal.h>

using namespace Esri::ArcGISRuntime;

// helper method to get cross platform data path
namespace
{
QString defaultDataPath()
{
  QString dataPath;

#ifdef Q_OS_IOS
  dataPath = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
#else
  dataPath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
#endif

  return dataPath;
}

// sample MMPK location
const QString sampleFileAnno {"/ArcGIS/Runtime/Data/mmpk/GasDeviceAnno.mmpk"};

} // namespace

ControlAnnotationSublayerVisibility::ControlAnnotationSublayerVisibility(QObject* parent /* = nullptr */):
  QObject(parent)
{
  const QString dataPath = defaultDataPath() + sampleFileAnno;

  // connect to the Mobile Map Package instance to know when errors occur
  connect(MobileMapPackage::instance(), &MobileMapPackage::errorOccurred,
          [](const Error& error)
  {
    if (error.isEmpty())
      return;

    qDebug() << QString("Error: %1 %2").arg(error.message(), error.additionalMessage());
  });

  // Load the MMPK
  createMapPackage(dataPath);
}

ControlAnnotationSublayerVisibility::~ControlAnnotationSublayerVisibility() = default;

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

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

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

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

  connect(m_mapView, &MapQuickView::mapScaleChanged, this, [this]()
  {
    m_mapScale = m_mapView->mapScale();
    emit mapScaleChanged();

    if (!m_annotationSubLayerOpen)
      return;

    m_visibleAtCurrentExtent = m_annotationSubLayerOpen->isVisibleAtScale(m_mapScale);
    emit visibleAtCurrentExtentChanged();
  });

  emit mapViewChanged();
}

// create map package
void ControlAnnotationSublayerVisibility::createMapPackage(const QString& path)
{
  //! [open mobile map package cpp snippet]
  // instatiate a mobile map package
  m_mobileMapPackage = new MobileMapPackage(path, this);

  // wait for the mobile map package to load
  connect(m_mobileMapPackage, &MobileMapPackage::doneLoading, this, [this](const Error& error)
  {
    if (!error.isEmpty())
    {
      qDebug() << QString("Package load error: %1 %2").arg(error.message(), error.additionalMessage());
      return;
    }

    if (!m_mobileMapPackage || !m_mapView || m_mobileMapPackage->maps().isEmpty())
      return;

    // The package contains a list of maps that could be shown in the UI for selection.
    // For simplicity, obtain the first map in the list of maps.
    // set the map on the map view to display
    m_mapView->setMap(m_mobileMapPackage->maps().at(0));

    m_layerListModel = mapView()->map()->operationalLayers();
    for (Layer* layer : *m_layerListModel)
    {
      if (layer->layerType() == LayerType::AnnotationLayer)
      {
        m_annoLayer = layer;
        connect(m_annoLayer, &Layer::doneLoading, this, [this](const Error& error)
        {
          if (!error.isEmpty())
          {
            qDebug() << QString("Package load error: %1 %2").arg(error.message(), error.additionalMessage());
            return;
          }

          const auto contents = m_annoLayer->subLayerContents();
          m_annotationSubLayerClosed = dynamic_cast<AnnotationSublayer*>(contents[0]);
          m_annotationSubLayerOpen = dynamic_cast<AnnotationSublayer*>(contents[1]);
          m_closedLayerText = m_annotationSubLayerClosed->name();
          m_openLayerText = QString("%1 (1:%2 - 1:%3)").arg(m_annotationSubLayerOpen->name()).arg(m_annotationSubLayerOpen->maxScale()).arg(m_annotationSubLayerOpen->minScale());
          emit openLayerTextChanged();
          emit closedLayerTextChanged();
        });
        layer->load();
      }
    }
  });

  m_mobileMapPackage->load();
  //! [open mobile map package cpp snippet]
}

void ControlAnnotationSublayerVisibility::openLayerVisible()
{
  if (!m_annotationSubLayerOpen)
    return;

  m_annotationSubLayerOpen->setVisible(!m_annotationSubLayerOpen->isVisible());
}

void ControlAnnotationSublayerVisibility::closedLayerVisible()
{
  if (!m_annotationSubLayerClosed)
    return;

  m_annotationSubLayerClosed->setVisible(!m_annotationSubLayerClosed->isVisible());
}