Render cell markers

Adds rendering of cell markers. Markers are displayed at center of
cell and contain cell's coordinates.

apps/opencs/CMakeLists.txt

@@ -90,7 +90,7 @@ opencs_units (view/render
 
 opencs_units_noqt (view/render
     lighting lightingday lightingnight
-    lightingbright object cell terrainstorage tagbase cellarrow
+    lightingbright object cell terrainstorage tagbase cellarrow cellmarker
     )
 
 opencs_hdrs_noqt (view/render
@@ -192,6 +192,7 @@ endif(APPLE)
 target_link_libraries(openmw-cs
     ${OSG_LIBRARIES}
     ${OPENTHREADS_LIBRARIES}
+    ${OSGTEXT_LIBRARIES}
     ${OSGUTIL_LIBRARIES}
     ${OSGVIEWER_LIBRARIES}
     ${OSGGA_LIBRARIES}

apps/opencs/view/render/cell.cpp

@@ -70,6 +70,8 @@ CSVRender::Cell::Cell (CSMWorld::Data& data, osg::Group* rootNode, const std::st
     mCellNode = new osg::Group;
     rootNode->addChild(mCellNode);
 
+    setCellMarker();
+
     if (!mDeleted)
     {
         CSMWorld::IdTable& references = dynamic_cast<CSMWorld::IdTable&> (
@@ -303,6 +305,11 @@ void CSVRender::Cell::setCellArrows (int mask)
     }
 }
 
+void CSVRender::Cell::setCellMarker()
+{
+    mCellMarker.reset(new CellMarker(mCellNode, mCoordinates));
+}
+
 CSMWorld::CellCoordinates CSVRender::Cell::getCoordinates() const
 {
     return mCoordinates;

apps/opencs/view/render/cell.hpp

@@ -15,6 +15,7 @@
 
 #include "object.hpp"
 #include "cellarrow.hpp"
+#include "cellmarker.hpp"
 
 class QModelIndex;
 
@@ -42,6 +43,7 @@ namespace CSVRender
             std::auto_ptr<Terrain::TerrainGrid> mTerrain;
             CSMWorld::CellCoordinates mCoordinates;
             std::auto_ptr<CellArrow> mCellArrows[4];
+            std::auto_ptr<CellMarker> mCellMarker;
             bool mDeleted;
 
             /// Ignored if cell does not have an object with the given ID.
@@ -105,6 +107,9 @@ namespace CSVRender
 
             void setCellArrows (int mask);
 
+            /// \brief Set marker for this cell.
+            void setCellMarker();
+
             /// Returns 0, 0 in case of an unpaged cell.
             CSMWorld::CellCoordinates getCoordinates() const;
 

apps/opencs/view/render/cellmarker.cpp

@@ -0,0 +1,62 @@
+#include "cellmarker.hpp"
+
+#include <boost/lexical_cast.hpp>
+
+#include <osg/AutoTransform>
+#include <osg/Geode>
+#include <osg/Group>
+#include <osgText/Text>
+
+void CSVRender::CellMarker::buildMarker()
+{
+    const int characterSize = 20;
+
+    // Set up marker text containing cell's coordinates.
+    osg::ref_ptr<osgText::Text> markerText (new osgText::Text);
+    markerText->setBackdropType(osgText::Text::OUTLINE);
+    markerText->setLayout(osgText::Text::LEFT_TO_RIGHT);
+    markerText->setCharacterSize(characterSize);
+    std::string coordinatesText =
+        "#" + boost::lexical_cast<std::string>(mCoordinates.getX()) +
+        " " + boost::lexical_cast<std::string>(mCoordinates.getY());
+    markerText->setText(coordinatesText);
+
+    // Add text to marker node.
+    osg::ref_ptr<osg::Geode> geode (new osg::Geode);
+    geode->addDrawable(markerText);
+    mMarkerNode->addChild(geode);
+}
+
+void CSVRender::CellMarker::positionMarker()
+{
+    const int cellSize = 8192;
+    const int markerHeight = 0;
+
+    // Move marker to center of cell.
+    int x = (mCoordinates.getX() * cellSize) + (cellSize / 2);
+    int y = (mCoordinates.getY() * cellSize) + (cellSize / 2);
+    mMarkerNode->setPosition(osg::Vec3f(x, y, markerHeight));
+}
+
+CSVRender::CellMarker::CellMarker(
+    osg::Group *cellNode,
+    const CSMWorld::CellCoordinates& coordinates
+) : mCellNode(cellNode),
+    mCoordinates(coordinates)
+{
+    // Set up node for cell marker.
+    mMarkerNode = new osg::AutoTransform();
+    mMarkerNode->setAutoRotateMode(osg::AutoTransform::ROTATE_TO_SCREEN);
+    mMarkerNode->setAutoScaleToScreen(true);
+    mMarkerNode->getOrCreateStateSet()->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
+
+    mCellNode->addChild(mMarkerNode);
+
+    buildMarker();
+    positionMarker();
+}
+
+CSVRender::CellMarker::~CellMarker()
+{
+    mCellNode->removeChild(mMarkerNode);
+}

apps/opencs/view/render/cellmarker.hpp

@@ -0,0 +1,48 @@
+#ifndef OPENCS_VIEW_CELLMARKER_H
+#define OPENCS_VIEW_CELLMARKER_H
+
+#include <osg/ref_ptr>
+
+#include "../../model/world/cellcoordinates.hpp"
+
+namespace osg
+{
+    class AutoTransform;
+    class Group;
+}
+
+namespace CSVRender
+{
+    /// \brief Marker to display cell coordinates.
+    class CellMarker
+    {
+        private:
+
+            osg::Group* mCellNode;
+            osg::ref_ptr<osg::AutoTransform> mMarkerNode;
+            CSMWorld::CellCoordinates mCoordinates;
+
+            // Not implemented.
+            CellMarker(const CellMarker&);
+            CellMarker& operator=(const CellMarker&);
+
+            /// \brief Build marker containing cell's coordinates.
+            void buildMarker();
+
+            /// \brief Position marker above center of cell.
+            void positionMarker();
+
+        public:
+
+            /// \brief Constructor.
+            /// \param cellNode Cell to create marker for.
+            /// \param coordinates Coordinates of cell.
+            CellMarker(
+                osg::Group *cellNode,
+                const CSMWorld::CellCoordinates& coordinates);
+
+            ~CellMarker();
+    };
+}
+
+#endif