Temporal layers indicators

images/images.qrc

@@ -822,6 +822,8 @@
         <file>themes/default/mActionEditModelComponent.svg</file>
         <file>themes/default/mIconModelOutput.svg</file>
         <file>themes/default/mIconModelInput.svg</file>
+        <file>themes/default/mIndicatorTemporal.svg</file>
+        <file>themes/default/mIndicatorTimeFromProject.svg</file>
     </qresource>
     <qresource prefix="/images/tips">
         <file alias="symbol_levels.png">qgis_tips/symbol_levels.png</file>

python/core/auto_generated/qgsmaplayertemporalproperties.sip.in

@@ -27,14 +27,14 @@ how an individual QgsMapLayer behaves in a temporal context, e.g. while animatin
 %End
   public:
 
-    QgsMapLayerTemporalProperties( bool enabled = false );
+    QgsMapLayerTemporalProperties( QObject *parent, bool enabled = false );
 %Docstring
 Constructor for QgsMapLayerTemporalProperties.
 
 The ``enabled`` argument specifies whether the temporal properties are initially enabled or not (see isActive()).
 %End
 
-    virtual ~QgsMapLayerTemporalProperties();
+    ~QgsMapLayerTemporalProperties();
 
     virtual QDomElement writeXml( QDomElement &element, QDomDocument &doc, const QgsReadWriteContext &context ) = 0;
 %Docstring
@@ -48,6 +48,26 @@ Writes the properties to a DOM ``element``, to be used later with readXml().
 Reads temporal properties from a DOM ``element`` previously written by writeXml().
 
 .. seealso:: :py:func:`writeXml`
+%End
+
+    enum TemporalSource
+    {
+      Layer,
+      Project
+    };
+
+    TemporalSource temporalSource() const;
+%Docstring
+Returns the temporal properties temporal range source, can be layer or project.
+
+.. seealso:: :py:func:`setTemporalSource`
+%End
+
+    void setTemporalSource( TemporalSource source );
+%Docstring
+Sets the temporal properties temporal range ``source``.
+
+.. seealso:: :py:func:`temporalSource`
 %End
 
 };

python/core/auto_generated/qgstemporalproperty.sip.in

@@ -12,7 +12,7 @@
 
 
 
-class QgsTemporalProperty
+class QgsTemporalProperty : QObject
 {
 %Docstring
 Base class for temporal property.
@@ -25,15 +25,13 @@ Base class for temporal property.
 %End
   public:
 
-    QgsTemporalProperty( bool active = false );
+    QgsTemporalProperty( QObject *parent = 0, bool enabled = false );
 %Docstring
 Constructor for QgsTemporalProperty.
 
 The ``active`` argument specifies whether the property is initially active (see isActive()).
 %End
 
-    virtual ~QgsTemporalProperty();
-
     void setIsActive( bool active );
 %Docstring
 Sets whether the temporal property is ``active``.
@@ -46,6 +44,13 @@ Sets whether the temporal property is ``active``.
 Returns ``True`` if the temporal property is active.
 
 .. seealso:: :py:func:`setIsActive`
+%End
+
+  signals:
+
+    void changed();
+%Docstring
+Emitted when the temporal properties have changed.
 %End
 
 };

python/core/auto_generated/raster/qgsrasterlayertemporalproperties.sip.in

@@ -23,7 +23,7 @@ Implementation of map layer temporal properties for raster layers.
 %End
   public:
 
-    QgsRasterLayerTemporalProperties( bool enabled = false );
+    QgsRasterLayerTemporalProperties( QObject *parent = 0, bool enabled = false );
 %Docstring
 Constructor for QgsRasterLayerTemporalProperties.
 

src/app/CMakeLists.txt

@@ -49,6 +49,7 @@ SET(QGIS_APP_SRCS
   qgslayertreeviewnocrsindicator.cpp
   qgslayertreeviewnonremovableindicator.cpp
   qgslayertreeviewbadlayerindicator.cpp
+  qgslayertreeviewtemporalindicator.cpp
   qgsmapcanvasdockwidget.cpp
   qgsmapsavedialog.cpp
   qgsprojectlistitemdelegate.cpp

src/app/qgisapp.cpp

@@ -235,6 +235,7 @@ Q_GUI_EXPORT extern int qt_defaultDpiX();
 #include "qgslayertreeviewbadlayerindicator.h"
 #include "qgslayertreeviewnonremovableindicator.h"
 #include "qgslayertreeviewnocrsindicator.h"
+#include "qgslayertreeviewtemporalindicator.h"
 #include "qgslayout.h"
 #include "qgslayoutatlas.h"
 #include "qgslayoutcustomdrophandler.h"
@@ -4501,6 +4502,7 @@ void QgisApp::initLayerTreeView()
   new QgsLayerTreeViewFilterIndicatorProvider( mLayerTreeView );  // gets parented to the layer view
   new QgsLayerTreeViewEmbeddedIndicatorProvider( mLayerTreeView );  // gets parented to the layer view
   new QgsLayerTreeViewMemoryIndicatorProvider( mLayerTreeView );  // gets parented to the layer view
+  new QgsLayerTreeViewTemporalIndicatorProvider( mLayerTreeView ); // gets parented to the layer view
   new QgsLayerTreeViewNoCrsIndicatorProvider( mLayerTreeView );  // gets parented to the layer view
   QgsLayerTreeViewBadLayerIndicatorProvider *badLayerIndicatorProvider = new QgsLayerTreeViewBadLayerIndicatorProvider( mLayerTreeView );  // gets parented to the layer view
   connect( badLayerIndicatorProvider, &QgsLayerTreeViewBadLayerIndicatorProvider::requestChangeDataSource, this, &QgisApp::changeDataSource );

src/app/qgslayertreeviewtemporalindicator.cpp

@@ -0,0 +1,85 @@
+/***************************************************************************
+                         qgslayertreeviewtemporalindicator.cpp
+                         ---------------
+    begin                : February 2020
+    copyright            : (C) 2020 by Samweli Mwakisambwe
+    email                : samweli at kartoza dot com
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "qgslayertreeviewtemporalindicator.h"
+#include "qgslayertreeview.h"
+#include "qgslayertree.h"
+#include "qgslayertreemodel.h"
+#include "qgslayertreeutils.h"
+#include "qgsrasterlayer.h"
+#include "qgisapp.h"
+
+QgsLayerTreeViewTemporalIndicatorProvider::QgsLayerTreeViewTemporalIndicatorProvider( QgsLayerTreeView *view )
+  : QgsLayerTreeViewIndicatorProvider( view )
+{
+}
+
+void QgsLayerTreeViewTemporalIndicatorProvider::connectSignals( QgsMapLayer *layer )
+{
+  if ( !( qobject_cast<QgsVectorLayer *>( layer ) || qobject_cast<QgsRasterLayer *>( layer ) ) )
+    return;
+
+  connect( layer->temporalProperties(), &QgsMapLayerTemporalProperties::changed, this, [ this, layer ]( ) { this->onLayerChanged( layer ); } );
+}
+
+void QgsLayerTreeViewTemporalIndicatorProvider::onIndicatorClicked( const QModelIndex &index )
+{
+  QgsLayerTreeNode *node = mLayerTreeView->layerTreeModel()->index2node( index );
+  if ( !QgsLayerTree::isLayer( node ) )
+    return;
+
+  QgsRasterLayer *rasterLayer = qobject_cast<QgsRasterLayer *>( QgsLayerTree::toLayer( node )->layer() );
+  if ( !rasterLayer || !rasterLayer->isValid() )
+    return;
+
+  QgisApp::instance()->showLayerProperties( rasterLayer );
+}
+
+bool QgsLayerTreeViewTemporalIndicatorProvider::acceptLayer( QgsMapLayer *layer )
+{
+  if ( !layer )
+    return false;
+  if ( layer->temporalProperties() &&
+       layer->temporalProperties()->isActive() )
+    return true;
+  return false;
+}
+
+QString QgsLayerTreeViewTemporalIndicatorProvider::iconName( QgsMapLayer *layer )
+{
+  if ( layer->temporalProperties()->temporalSource() ==
+       QgsMapLayerTemporalProperties::TemporalSource::Project )
+    return QStringLiteral( "/mIndicatorTimeFromProject.svg" );
+
+  return QStringLiteral( "/mIndicatorTemporal.svg" );
+}
+
+QString QgsLayerTreeViewTemporalIndicatorProvider::tooltipText( QgsMapLayer *layer )
+{
+  if ( layer->temporalProperties()->temporalSource() ==
+       QgsMapLayerTemporalProperties::TemporalSource::Project )
+    return tr( "<b>Temporal layer using project's time range</b>" );
+
+  return tr( "<b>Temporal layer</b>" );
+}
+
+void QgsLayerTreeViewTemporalIndicatorProvider::onLayerChanged( QgsMapLayer *layer )
+{
+  if ( !layer )
+    return;
+  updateLayerIndicator( layer );
+}