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// [WriteFile Name=FeatureLayerDictionaryRenderer, Category=Features]
// [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
#include "FeatureLayerDictionaryRenderer.h"
#include "DictionaryRenderer.h"
#include "FeatureLayer.h"
#include "Geodatabase.h"
#include "GeodatabaseFeatureTable.h"
#include "GeometryEngine.h"
#include "Map.h"
#include "MapQuickView.h"
#include "DictionarySymbolStyle.h"
#include "MapTypes.h"
#include "LayerListModel.h"
#include "TaskWatcher.h"
#include "Envelope.h"
#include <QtCore/qglobal.h>
#include <QStandardPaths>
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;
}
} // namespace
FeatureLayerDictionaryRenderer::FeatureLayerDictionaryRenderer(QQuickItem* parent) :
QQuickItem(parent),
m_dataPath(defaultDataPath() + "/ArcGIS/Runtime/Data")
{
}
FeatureLayerDictionaryRenderer::~FeatureLayerDictionaryRenderer() = default;
void FeatureLayerDictionaryRenderer::init()
{
qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
qmlRegisterType<FeatureLayerDictionaryRenderer>("Esri.Samples", 1, 0, "FeatureLayerDictionaryRendererSample");
}
void FeatureLayerDictionaryRenderer::componentComplete()
{
QQuickItem::componentComplete();
m_mapView = findChild<MapQuickView*>("mapView");
// Create a map using the topo basemap
Map* map = new Map(BasemapStyle::ArcGISTopographic, this);
// set map on the map view
m_mapView->setMap(map);
m_geodatabase = new Geodatabase(m_dataPath + "/geodatabase/militaryoverlay.geodatabase", this);
connect(m_geodatabase, &Geodatabase::loadStatusChanged, this, [this](LoadStatus gdbLoadStatus)
{
if (gdbLoadStatus == LoadStatus::Loaded)
{
/**
* If the field names in your data don't match the contents of DictionarySymbolStyle::symbologyFieldNames(),
* you must add key-value pairs to a QMap<QString, QString> and include this QMap when calling the
* DictionaryRenderer constructor. The keys and values are like this:
*
* "dictionaryFieldName1": "myFieldName1"
* "dictionaryFieldName2": "myFieldName2"
*
* The same principle applies to DictionarySymbolStyle::textFieldNames() for text attributes that appear
* as part of military symbols.
*
* The following commented-out code demonstrates one way to do it, in a scenario where the dictionary
* expects the field name "identity" but the database table contains the field "affiliation" instead,
* and where the dictionary expects the field name "uniquedesignation" but the database table contains
* the field "uniqueId" instead.
*/
// QMap<QString, QString> symbologyFieldOverrides;
// QMap<QString, QString> textFieldOverrides;
// symbologyFieldOverrides["identity"] = "affiliation";
// textFieldOverrides["uniquedesignation"] = "uniqueId";
//! [Create Dictionary Symbol Style Cpp]
const QString specType = QStringLiteral("mil2525d");
const QString stylePath = m_dataPath + "/styles/arcade_style/mil2525d.stylx";
DictionarySymbolStyle* dictionarySymbolStyle = DictionarySymbolStyle::createFromFile(stylePath, this);
//! [Create Dictionary Symbol Style Cpp]
Q_UNUSED(specType)
const auto tables = m_geodatabase->geodatabaseFeatureTables();
for (GeodatabaseFeatureTable* table : tables)
{
//! [Apply Dictionary Renderer Feature Layer Cpp]
// Create a layer and set the feature table
FeatureLayer* layer = new FeatureLayer(table, this);
// Create a dictionary renderer and apply to the layer
DictionaryRenderer* renderer = new DictionaryRenderer(dictionarySymbolStyle, this);
layer->setRenderer(renderer);
//! [Apply Dictionary Renderer Feature Layer Cpp]
// Check to see if all layers have loaded
connect(layer, &FeatureLayer::loadStatusChanged, this, [this](LoadStatus layerLoadStatus)
{
if (layerLoadStatus == LoadStatus::Loaded)
{
m_loadedLayerCount++;
if (m_loadedLayerCount == m_geodatabase->geodatabaseFeatureTables().length())
{
/**
* If we get here, all the layers loaded. Union the extents and set
* the viewpoint.
*/
LayerListModel* layers = m_mapView->map()->operationalLayers();
if (layers->size() > 0)
{
Envelope bbox = layers->at(0)->fullExtent();
for (int j = 1; j < layers->size(); j++)
{
bbox = GeometryEngine::unionOf(bbox, layers->at(j)->fullExtent());
}
m_mapView->setViewpointGeometry(bbox, 100);
}
emit allLayersLoaded();
}
}
}, Qt::DirectConnection);
/**
* Add the layer to the map. Inserting at index 0 puts the layer below previously added
* layers.
*/
m_mapView->map()->operationalLayers()->insert(0, layer);
}
}
});
m_geodatabase->load();
}
