Merge pull request #7105 from PeterPetrik/quick-3-identity

[qgsquick] [feature] Identify and highlight

python/core/auto_generated/qgstessellator.sip.in

@@ -0,0 +1,66 @@
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgstessellator.h                                            *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/
+
+
+
+
+
+class QgsTessellator
+{
+%Docstring
+Class that takes care of tessellation of polygons into triangles.
+
+It is expected that client code will create the tessellator object, then repeatedly call
+addPolygon() method that will generate triangles, and finally call data() to get final vertex data.
+
+Optionally provides extrusion by adding triangles that serve as walls when extrusion height is non-zero.
+
+.. versionadded:: 3.4
+%End
+
+%TypeHeaderCode
+#include "qgstessellator.h"
+%End
+  public:
+    QgsTessellator( double originX, double originY, bool addNormals, bool invertNormals = false, bool addBackFaces = false );
+%Docstring
+Creates tessellator with a specified origin point of the world (in map coordinates)
+%End
+
+    void addPolygon( const QgsPolygon &polygon, float extrusionHeight );
+%Docstring
+Tessellates a triangle and adds its vertex entries to the output data array
+%End
+
+    QVector<float> data() const;
+%Docstring
+Returns array of triangle vertex data
+
+Vertice coordinates are stored as (x, z, -y)
+%End
+
+    int dataVerticesCount() const;
+%Docstring
+Returns the number of vertices stored in the output data array
+%End
+
+    int stride() const;
+%Docstring
+Returns size of one vertex entry in bytes
+%End
+
+
+};
+
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgstessellator.h                                            *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/

python/core/core_auto.sip

@@ -3,6 +3,7 @@
 %Include auto_generated/expression/qgsexpressionnode.sip
 %Include auto_generated/expression/qgsexpressionnodeimpl.sip
 %Include auto_generated/expression/qgsexpressionfunction.sip
+%Include auto_generated/qgstessellator.sip
 %Include auto_generated/qgis.sip
 %Include auto_generated/qgsaction.sip
 %Include auto_generated/qgsactionscope.sip

src/3d/CMakeLists.txt

@@ -9,7 +9,6 @@ SET(QGIS_3D_SRCS
   qgscameracontroller.cpp
   qgsphongmaterialsettings.cpp
   qgstessellatedpolygongeometry.cpp
-  qgstessellator.cpp
   qgstilingscheme.cpp
   qgsvectorlayer3drenderer.cpp
 
@@ -41,12 +40,6 @@ SET(QGIS_3D_SRCS
   terrain/qgsterraintileloader_p.cpp
   #terrain/quantizedmeshgeometry.cpp
   #terrain/quantizedmeshterraingenerator.cpp
-
-  ${CMAKE_SOURCE_DIR}/external/poly2tri/common/shapes.cc
-  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/advancing_front.cc
-  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/cdt.cc
-  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/sweep_context.cc
-  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/sweep.cc
 )
 
 SET(QGIS_3D_MOC_HDRS
@@ -82,7 +75,6 @@ SET(QGIS_3D_HDRS
   qgscameracontroller.h
   qgsphongmaterialsettings.h
   qgstessellatedpolygongeometry.h
-  qgstessellator.h
   qgstilingscheme.h
   qgsvectorlayer3drenderer.h
 
@@ -127,7 +119,6 @@ INCLUDE_DIRECTORIES(
   ${CMAKE_SOURCE_DIR}/src/core/metadata
   ${CMAKE_SOURCE_DIR}/src/core/expression
   ${CMAKE_SOURCE_DIR}/src/core/3d
-  ${CMAKE_SOURCE_DIR}/external/poly2tri
   ${CMAKE_BINARY_DIR}/src/core
   ${CMAKE_BINARY_DIR}/src/3d
 )

src/core/CMakeLists.txt

@@ -10,6 +10,12 @@ SET(QGIS_CORE_SRCS
   ${CMAKE_SOURCE_DIR}/external/nmea/time.c
   ${CMAKE_SOURCE_DIR}/external/nmea/tok.c
 
+  ${CMAKE_SOURCE_DIR}/external/poly2tri/common/shapes.cc
+  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/advancing_front.cc
+  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/cdt.cc
+  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/sweep_context.cc
+  ${CMAKE_SOURCE_DIR}/external/poly2tri/sweep/sweep.cc
+
   gps/qgsgpsconnection.cpp
   gps/qgsgpsconnectionregistry.cpp
   gps/qgsgpsdconnection.cpp
@@ -291,6 +297,7 @@ SET(QGIS_CORE_SRCS
   qgsstringstatisticalsummary.cpp
   qgsstringutils.cpp
   qgstaskmanager.cpp
+  qgstessellator.cpp
   qgstextlabelfeature.cpp
   qgstextrenderer.cpp
   qgstolerance.cpp
@@ -811,6 +818,8 @@ SET(QGIS_CORE_HDRS
   expression/qgsexpressionnodeimpl.h
   expression/qgsexpressionfunction.h
 
+  qgstessellator.h
+
   qgis.h
   qgis_sip.h
   qgsaction.h
@@ -1204,6 +1213,7 @@ INCLUDE_DIRECTORIES(
   metadata
   mesh
   ${CMAKE_SOURCE_DIR}/external/nmea
+  ${CMAKE_SOURCE_DIR}/external/poly2tri
 )
 IF (WITH_INTERNAL_QEXTSERIALPORT)
   INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/external/qextserialport)

src/3d/qgstessellator.cpp → src/core/qgstessellator.cpp

@@ -540,6 +540,11 @@ QgsPoint getPointFromData( QVector< float >::const_iterator &it )
   return QgsPoint( x, y, z );
 }
 
+int QgsTessellator::dataVerticesCount() const
+{
+  return mData.size() / 3;
+}
+
 std::unique_ptr<QgsMultiPolygon> QgsTessellator::asMultiPolygon() const
 {
   std::unique_ptr< QgsMultiPolygon > mp = qgis::make_unique< QgsMultiPolygon >();

src/3d/qgstessellator.h → src/core/qgstessellator.h

@@ -16,26 +16,28 @@
 #ifndef QGSTESSELLATOR_H
 #define QGSTESSELLATOR_H
 
-#include "qgis_3d.h"
+#include "qgis_core.h"
+#include "qgis.h"
 
 class QgsPolygon;
 class QgsMultiPolygon;
 
 #include <QVector>
 #include <memory>
+#include "qgspoint.h"
 
 /**
- * \ingroup 3d
+ * \ingroup core
  * Class that takes care of tessellation of polygons into triangles.
  *
  * It is expected that client code will create the tessellator object, then repeatedly call
  * addPolygon() method that will generate triangles, and finally call data() to get final vertex data.
  *
  * Optionally provides extrusion by adding triangles that serve as walls when extrusion height is non-zero.
  *
- * \since QGIS 3.0
+ * \since QGIS 3.4 (since QGIS 3.0 in QGIS_3D library)
  */
-class _3D_EXPORT QgsTessellator
+class CORE_EXPORT QgsTessellator
 {
   public:
     //! Creates tessellator with a specified origin point of the world (in map coordinates)
@@ -44,15 +46,23 @@ class _3D_EXPORT QgsTessellator
     //! Tessellates a triangle and adds its vertex entries to the output data array
     void addPolygon( const QgsPolygon &polygon, float extrusionHeight );
 
-    //! Returns array of triangle vertex data
+    /**
+     * Returns array of triangle vertex data
+     *
+     * Vertice coordinates are stored as (x, z, -y)
+     */
     QVector<float> data() const { return mData; }
+
+    //! Returns the number of vertices stored in the output data array
+    int dataVerticesCount() const;
+
     //! Returns size of one vertex entry in bytes
     int stride() const { return mStride; }
 
     /**
      * Returns the triangulation as a multipolygon geometry.
      */
-    std::unique_ptr< QgsMultiPolygon > asMultiPolygon() const;
+    std::unique_ptr< QgsMultiPolygon > asMultiPolygon() const SIP_SKIP;
 
   private:
     double mOriginX = 0, mOriginY = 0;

src/quickgui/CMakeLists.txt

@@ -1,19 +1,29 @@
 ############################################################
 # sources
 SET(QGIS_QUICK_GUI_MOC_HDRS
+  qgsquickfeaturelayerpair.h
+  qgsquickfeaturehighlight.h
+  qgsquickidentifykit.h
   qgsquickmapcanvasmap.h
   qgsquickmapsettings.h
+  qgsquickmaptransform.h
   qgsquickmessagelogmodel.h
   qgsquickscalebarkit.h
   qgsquickutils.h
 )
 
 SET(QGIS_QUICK_GUI_HDRS
+  qgsquickhighlightsgnode.h
 )
 
 SET(QGIS_QUICK_GUI_SRC
+  qgsquickfeaturelayerpair.cpp
+  qgsquickfeaturehighlight.cpp
+  qgsquickhighlightsgnode.cpp
+  qgsquickidentifykit.cpp
   qgsquickmapcanvasmap.cpp
   qgsquickmapsettings.cpp
+  qgsquickmaptransform.cpp
   qgsquickmessagelogmodel.cpp
   qgsquickscalebarkit.cpp
   qgsquickutils.cpp

src/quickgui/plugin/qgsquickplugin.cpp

@@ -29,8 +29,12 @@
 #include "qgscoordinatetransformcontext.h"
 #include "qgsvectorlayer.h"
 
+#include "qgsquickfeaturehighlight.h"
+#include "qgsquickidentifykit.h"
+#include "qgsquickfeaturelayerpair.h"
 #include "qgsquickmapcanvasmap.h"
 #include "qgsquickmapsettings.h"
+#include "qgsquickmaptransform.h"
 #include "qgsquickmessagelogmodel.h"
 #include "qgsquickplugin.h"
 #include "qgsquickscalebarkit.h"
@@ -53,10 +57,14 @@ void QgsQuickPlugin::registerTypes( const char *uri )
   qRegisterMetaType< QgsFeatureId > ( "QgsFeatureId" );
   qRegisterMetaType< QgsPoint >( "QgsPoint" );
   qRegisterMetaType< QgsPointXY >( "QgsPointXY" );
+  qRegisterMetaType< QgsQuickFeatureLayerPair >( "QgsQuickFeatureLayerPair" );
 
   qmlRegisterType< QgsProject >( uri, 0, 1, "Project" );
+  qmlRegisterType< QgsQuickFeatureHighlight >( uri, 0, 1, "FeatureHighlight" );
+  qmlRegisterType< QgsQuickIdentifyKit >( uri, 0, 1, "IdentifyKit" );
   qmlRegisterType< QgsQuickMapCanvasMap >( uri, 0, 1, "MapCanvasMap" );
   qmlRegisterType< QgsQuickMapSettings >( uri, 0, 1, "MapSettings" );
+  qmlRegisterType< QgsQuickMapTransform >( uri, 0, 1, "MapTransform" );
   qmlRegisterType< QgsQuickMessageLogModel >( uri, 0, 1, "MessageLogModel" );
   qmlRegisterType< QgsQuickScaleBarKit >( uri, 0, 1, "ScaleBarKit" );
   qmlRegisterType< QgsVectorLayer >( uri, 0, 1, "VectorLayer" );

src/quickgui/qgsquickfeaturehighlight.cpp

@@ -0,0 +1,84 @@
+/***************************************************************************
+  qgsqguickfeaturehighlight.cpp
+  --------------------------------------
+  Date                 : May 2018
+  Copyright            : (C) 2018 by Peter Petrik
+  Email                : zilolv 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 <memory>
+
+#include "qgsvectorlayer.h"
+
+#include "qgsquickfeaturehighlight.h"
+#include "qgsquickmapsettings.h"
+#include "qgsquickhighlightsgnode.h"
+
+
+QgsQuickFeatureHighlight::QgsQuickFeatureHighlight( QQuickItem *parent )
+  : QQuickItem( parent )
+{
+  setFlags( QQuickItem::ItemHasContents );
+  setAntialiasing( true );
+
+  // transform to device coords
+  mTransform.appendToItem( this );
+
+  connect( this, &QgsQuickFeatureHighlight::mapSettingsChanged, this, &QgsQuickFeatureHighlight::onMapSettingsChanged );
+  connect( this, &QgsQuickFeatureHighlight::featureLayerPairChanged, this, &QgsQuickFeatureHighlight::markDirty );
+  connect( this, &QgsQuickFeatureHighlight::colorChanged, this, &QgsQuickFeatureHighlight::markDirty );
+  connect( this, &QgsQuickFeatureHighlight::widthChanged, this, &QgsQuickFeatureHighlight::markDirty );
+}
+
+void QgsQuickFeatureHighlight::markDirty()
+{
+  mDirty = true;
+  update();
+}
+
+void QgsQuickFeatureHighlight::onMapSettingsChanged()
+{
+  mTransform.setMapSettings( mMapSettings );
+  markDirty();
+}
+
+QSGNode *QgsQuickFeatureHighlight::updatePaintNode( QSGNode *n, QQuickItem::UpdatePaintNodeData * )
+{
+  if ( !mDirty || !mMapSettings || !mFeatureLayerPair.isValid() )
+    return n;
+
+  delete n;
+  n = new QSGNode;
+
+  QgsVectorLayer *layer = mFeatureLayerPair.layer();
+  Q_ASSERT( layer ); // we checked the validity of feature-layer pair
+  QgsCoordinateTransform transf( layer->crs(), mMapSettings->destinationCrs(), mMapSettings->transformContext() );
+
+  QgsFeature feature = mFeatureLayerPair.feature();
+  if ( feature.hasGeometry() )
+  {
+    QgsGeometry geom( feature.geometry() );
+    try
+    {
+      geom.transform( transf );
+      std::unique_ptr<QgsQuickHighlightSGNode> rb( new QgsQuickHighlightSGNode( geom, mColor, mWidth ) );
+      rb->setFlag( QSGNode::OwnedByParent );
+      n->appendChildNode( rb.release() );
+    }
+    catch ( QgsCsException &e )
+    {
+      Q_UNUSED( e );
+      // Caught an error in transform
+    }
+  }
+  mDirty = false;
+
+  return n;
+}