update layers using project temporal range when the range has changed

qgis · Apr 28, 2020 · 2f8a51b · 2f8a51b
1 parent 01af33f
commit 2f8a51b
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Showing 2 changed files with 40 additions and 1 deletion.
diff --git a/src/app/qgisapp.cpp b/src/app/qgisapp.cpp
@@ -1189,7 +1189,6 @@ QgisApp::QgisApp( QSplashScreen *splash, bool restorePlugins, bool skipVersionCh
 
   mMapCanvas->setTemporalController( mTemporalControllerWidget->temporalController() );
 
-
   QgsGui::instance()->dataItemGuiProviderRegistry()->addProvider( new QgsAppDirectoryItemGuiProvider() );
   QgsGui::instance()->dataItemGuiProviderRegistry()->addProvider( new QgsProjectHomeItemGuiProvider() );
   QgsGui::instance()->dataItemGuiProviderRegistry()->addProvider( new QgsProjectItemGuiProvider() );
@@ -4080,6 +4079,8 @@ void QgisApp::setupConnections()
     }
   } );
 
+  connect( QgsProject::instance()->timeSettings(), &QgsProjectTimeSettings::temporalRangeChanged, this, &QgisApp::projectTemporalRangeChanged );
+
   // connect legend signals
   connect( this, &QgisApp::activeLayerChanged,
            this, &QgisApp::activateDeactivateLayerRelatedActions );
@@ -11056,6 +11057,41 @@ void QgisApp::projectCrsChanged()
   }
 }
 
+void QgisApp::projectTemporalRangeChanged()
+{
+  QMap<QString, QgsMapLayer *> layers = QgsProject::instance()->mapLayers();
+  QgsMapLayer *currentLayer = nullptr;
+
+  for ( QMap<QString, QgsMapLayer *>::const_iterator it = layers.constBegin(); it != layers.constEnd(); ++it )
+  {
+    currentLayer = it.value();
+
+    if ( currentLayer->dataProvider() )
+    {
+      QgsDataSourceUri uri;
+      uri.setEncodedUri( currentLayer->dataProvider()->dataSourceUri() );
+
+      if ( uri.hasParam( QStringLiteral( "temporalSource" ) ) &&
+           uri.param( QStringLiteral( "temporalSource" ) ) == QStringLiteral( "project" ) )
+      {
+        QgsDateTimeRange range = QgsProject::instance()->timeSettings()->temporalRange();
+        if ( range.begin().isValid() && range.end().isValid() )
+        {
+          QString time = range.begin().toString( Qt::ISODateWithMs ) + "/" +
+                         range.end().toString( Qt::ISODateWithMs );
+
+          uri.removeParam( QStringLiteral( "time" ) );
+          uri.setParam( QStringLiteral( "time" ), time );
+
+          currentLayer->dataProvider()->setDataSourceUri( uri.encodedUri() );
+          currentLayer->setDataSource( currentLayer->dataProvider()->dataSourceUri(), currentLayer->name(), currentLayer->providerType(), QgsDataProvider::ProviderOptions() );
+
+        }
+      }
+    }
+  }
+}
+
 // toggle overview status
 void QgisApp::isInOverview()
 {

diff --git a/src/app/qgisapp.h b/src/app/qgisapp.h
@@ -1788,6 +1788,9 @@ class APP_EXPORT QgisApp : public QMainWindow, private Ui::MainWindow
     //! handle project crs changes
     void projectCrsChanged();
 
+    //! Updates the temporal range in layers that are using project temporal range.
+    void projectTemporalRangeChanged();
+
     void onActiveLayerChanged( QgsMapLayer *layer );
 
     /**