Initial support for 3D map item in print layouts GUI

The GUI logic is not working yet, just getting the new files ready.

Many thanks to @nirvn for the icon!

Author: wonder-sk

images/images.qrc

@@ -702,6 +702,7 @@
         <file>themes/default/mIconGPU.svg</file>
         <file>themes/default/mAddToProject.svg</file>
         <file>themes/default/mDockify.svg</file>
+        <file>themes/default/mActionAdd3DMap.svg</file>
     </qresource>
     <qresource prefix="/images/tips">
         <file alias="symbol_levels.png">qgis_tips/symbol_levels.png</file>

images/themes/default/mActionAdd3DMap.svg

@@ -54,6 +54,7 @@ SET(QGIS_3D_MOC_HDRS
   qgs3dmapsettings.h
   qgsabstract3dengine.h
   qgscameracontroller.h
+  qgslayoutitem3dmap.h
   qgsoffscreen3dengine.h
   qgswindow3dengine.h
 

src/3d/CMakeLists.txt

@@ -26,9 +26,11 @@
 QgsLayoutItem3DMap::QgsLayoutItem3DMap( QgsLayout *layout )
   : QgsLayoutItem( layout )
 {
-
 }
 
+QgsLayoutItem3DMap::~QgsLayoutItem3DMap() = default;
+
+
 QgsLayoutItem3DMap *QgsLayoutItem3DMap::create( QgsLayout *layout )
 {
   return new QgsLayoutItem3DMap( layout );
@@ -41,6 +43,9 @@ int QgsLayoutItem3DMap::type() const
 
 void QgsLayoutItem3DMap::draw( QgsLayoutItemRenderContext &context )
 {
+  if ( !mSettings )
+    return;
+
   QgsOffscreen3DEngine engine;
   QSizeF sizePixels = mLayout->renderContext().measurementConverter().convert( sizeWithUnits(), QgsUnitTypes::LayoutPixels ).toQSizeF();
   engine.setSize( QSize( static_cast<int>( std::ceil( sizePixels.width() ) ),

src/3d/qgslayoutitem3dmap.cpp

@@ -34,6 +34,7 @@ class Qgs3DMapSettings;
  */
 class _3D_EXPORT QgsLayoutItem3DMap : public QgsLayoutItem
 {
+    Q_OBJECT
 
 #ifdef SIP_RUN
     SIP_CONVERT_TO_SUBCLASS_CODE
@@ -61,6 +62,8 @@ class _3D_EXPORT QgsLayoutItem3DMap : public QgsLayoutItem
      */
     QgsLayoutItem3DMap( QgsLayout *layout SIP_TRANSFERTHIS );
 
+    ~QgsLayoutItem3DMap();
+
     /**
      * Returns a new 3D map item for the specified \a layout.
      *

src/3d/qgslayoutitem3dmap.h

@@ -446,6 +446,7 @@ IF (WITH_3D)
     3d/qgspolygon3dsymbolwidget.cpp
     3d/qgsphongmaterialwidget.cpp
     3d/qgsvectorlayer3drendererwidget.cpp
+    layout/qgslayout3dmapwidget.cpp
   )
 
   SET (QGIS_APP_MOC_HDRS
@@ -459,6 +460,7 @@ IF (WITH_3D)
     3d/qgspolygon3dsymbolwidget.h
     3d/qgsphongmaterialwidget.h
     3d/qgsvectorlayer3drendererwidget.h
+    layout/qgslayout3dmapwidget.h
   )
 ENDIF (WITH_3D)
 

src/app/CMakeLists.txt

@@ -0,0 +1,24 @@
+/***************************************************************************
+  qgslayout3dmapwidget.cpp
+  --------------------------------------
+  Date                 : August 2018
+  Copyright            : (C) 2018 by Martin Dobias
+  Email                : wonder dot sk at gmail 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 "qgslayout3dmapwidget.h"
+
+
+QgsLayout3DMapWidget::QgsLayout3DMapWidget( QgsLayoutItem3DMap *map3D )
+  : QgsLayoutItemBaseWidget( nullptr, map3D )
+  , mMap3D( map3D )
+{
+  setupUi( this );
+}

src/app/layout/qgslayout3dmapwidget.cpp

@@ -0,0 +1,35 @@
+/***************************************************************************
+  qgslayout3dmapwidget.h
+  --------------------------------------
+  Date                 : August 2018
+  Copyright            : (C) 2018 by Martin Dobias
+  Email                : wonder dot sk at gmail 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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef QGSLAYOUT3DMAPWIDGET_H
+#define QGSLAYOUT3DMAPWIDGET_H
+
+#include "qgslayoutitemwidget.h"
+#include "ui_qgslayout3dmapwidgetbase.h"
+#include "qgslayoutitem3dmap.h"
+
+class QgsLayoutItem3DMap;
+
+class QgsLayout3DMapWidget : public QgsLayoutItemBaseWidget, private Ui::QgsLayout3DMapWidgetBase
+{
+    Q_OBJECT
+  public:
+    explicit QgsLayout3DMapWidget( QgsLayoutItem3DMap *map3D );
+
+  private:
+    QPointer< QgsLayoutItem3DMap > mMap3D;
+};
+
+#endif // QGSLAYOUT3DMAPWIDGET_H

src/app/layout/qgslayout3dmapwidget.h

@@ -43,6 +43,10 @@
 #include "qgisapp.h"
 #include "qgsmapcanvas.h"
 
+#ifdef HAVE_3D
+#include "qgslayout3dmapwidget.h"
+#endif
+
 void QgsLayoutAppUtils::registerGuiForKnownItemTypes()
 {
   QgsLayoutItemGuiRegistry *registry = QgsGui::layoutItemGuiRegistry();
@@ -341,4 +345,15 @@ void QgsLayoutAppUtils::registerGuiForKnownItemTypes()
     return f;
   } );
   registry->addLayoutItemGuiMetadata( attributeTableItemMetadata .release() );
+
+  // 3D map item
+#ifdef HAVE_3D
+  std::unique_ptr< QgsLayoutItemGuiMetadata > map3dMetadata = qgis::make_unique< QgsLayoutItemGuiMetadata>(
+        QgsLayoutItemRegistry::Layout3DMap, QObject::tr( "3D Map" ), QgsApplication::getThemeIcon( QStringLiteral( "/mActionAdd3DMap.svg" ) ),
+        [ = ]( QgsLayoutItem * item )->QgsLayoutItemBaseWidget *
+  {
+    return new QgsLayout3DMapWidget( qobject_cast< QgsLayoutItem3DMap * >( item ) );
+  }, createRubberBand );
+  registry->addLayoutItemGuiMetadata( map3dMetadata.release() );
+#endif
 }