implement radius based painting for area id

src/noggit/MapView.cpp

@@ -1842,7 +1842,7 @@ void MapView::tick (float dt)
             if (_mod_shift_down)
             {
               // draw the selected AreaId on current selected chunk
-              _world->setAreaID(_cursor_pos, _selected_area_id, false);
+              _world->setAreaID(_cursor_pos, _selected_area_id, false, ZoneIDBrowser->brushRadius());
             }
             else if (_mod_ctrl_down)
             {
@@ -2348,6 +2348,9 @@ void MapView::draw_map()
   case editing_mode::mccv:
     radius = shaderTool->brushRadius();
     break;
+  case editing_mode::areaid:
+    radius = ZoneIDBrowser->brushRadius();
+    break;
   }
 
   //! \note Select terrain below mouse, if no item selected or the item is map.
@@ -2706,6 +2709,10 @@ void MapView::mouseMoveEvent (QMouseEvent* event)
     case editing_mode::mccv:
       shaderTool->changeRadius(relative_movement.dx() / XSENS);
       break;
+    case editing_mode::areaid:
+      ZoneIDBrowser->changeRadius(relative_movement.dx() / XSENS);
+      break;
+
     }
   }
 

src/noggit/World.cpp

@@ -1411,7 +1411,7 @@ void World::CropWaterADT(const tile_index& pos)
   for_tile_at(pos, [](MapTile* tile) { tile->CropWater(); });
 }
 
-void World::setAreaID(math::vector_3d const& pos, int id, bool adt)
+void World::setAreaID(math::vector_3d const& pos, int id, bool adt, float radius)
 {
   if (adt)
   {
@@ -1419,7 +1419,22 @@ void World::setAreaID(math::vector_3d const& pos, int id, bool adt)
   }
   else
   {
-    for_chunk_at(pos, [&](MapChunk* chunk) { chunk->setAreaID(id);});
+
+    if (radius >= 0)
+    {
+      for_all_chunks_in_range(pos, radius,
+                              [&] (MapChunk* chunk)
+                              {
+                                chunk->setAreaID(id);
+                                return true;
+                              }
+      );
+
+    }
+    else
+    {
+      for_chunk_at(pos, [&](MapChunk* chunk) { chunk->setAreaID(id);});
+    }
   }
 }
 

src/noggit/World.h

@@ -126,7 +126,7 @@ public:
             );
 
   unsigned int getAreaID (math::vector_3d const&);
-  void setAreaID(math::vector_3d const& pos, int id, bool adt);
+  void setAreaID(math::vector_3d const& pos, int id, bool adt,  float radius = -1.0f);
 
   selection_result intersect ( math::matrix_4x4 const& model_view
                              , math::ray const&

src/noggit/ui/ZoneIDBrowser.cpp

@@ -7,6 +7,7 @@
 #include <noggit/Misc.h>
 
 #include <QtWidgets/QVBoxLayout>
+#include <QtWidgets/QFormLayout>
 
 #include <iostream>
 #include <sstream>
@@ -21,8 +22,21 @@ namespace noggit
       , _area_tree(new QTreeWidget())
       , mapID(-1)
     {
-      new QVBoxLayout(this);
-      this->layout()->addWidget(_area_tree);
+      auto layout = new QFormLayout(this);
+
+      _radius_spin = new QDoubleSpinBox (this);
+      _radius_spin->setRange (0.0f, 250.0f);
+      _radius_spin->setDecimals (2);
+      _radius_spin->setValue (_radius);
+
+      layout->addRow ("Radius:", _radius_spin);
+
+      _radius_slider = new QSlider (Qt::Orientation::Horizontal, this);
+      _radius_slider->setRange (0, 100);
+      _radius_slider->setSliderPosition (_radius);
+
+      layout->addRow (_radius_slider);
+      layout->addRow (_area_tree);
       
 
       connect ( _area_tree, &QTreeWidget::itemSelectionChanged
@@ -35,6 +49,24 @@ namespace noggit
                   }
                 }
               );
+
+      connect ( _radius_spin, qOverload<double> (&QDoubleSpinBox::valueChanged)
+          , [&] (double v)
+                {
+                  _radius = v;
+                  QSignalBlocker const blocker(_radius_slider);
+                  _radius_slider->setSliderPosition ((int)std::round (v));
+                }
+      );
+
+      connect ( _radius_slider, &QSlider::valueChanged
+          , [&] (int v)
+                {
+                  _radius = v;
+                  QSignalBlocker const blocker(_radius_spin);
+                  _radius_spin->setValue(v);
+                }
+      );
     }
 
     void zone_id_browser::setMapID(int id)
@@ -89,6 +121,11 @@ namespace noggit
       }
     }
 
+    void zone_id_browser::changeRadius(float change)
+    {
+      _radius_spin->setValue (_radius + change);
+    }
+
     QTreeWidgetItem* zone_id_browser::create_or_get_tree_widget_item(int area_id)
     {
       auto it = _items.find(area_id);

src/noggit/ui/ZoneIDBrowser.h

@@ -4,6 +4,8 @@
 
 #include <QtWidgets/QWidget>
 #include <QtWidgets/QTreeWidget>
+#include <QtWidgets/QDoubleSpinBox>
+#include <QtWidgets/QSlider>
 
 #include <functional>
 #include <string>
@@ -20,14 +22,22 @@ namespace noggit
       zone_id_browser(QWidget* parent = nullptr);
       void setMapID(int id);
       void setZoneID(int id);
+      void changeRadius(float change);
+
+      float brushRadius() const { return _radius; }
 
     signals:
       void selected (int area_id);
 
     private:
       QTreeWidget* _area_tree;
+
+      QSlider* _radius_slider;
+      QDoubleSpinBox* _radius_spin;
+
       std::map<int, QTreeWidgetItem*> _items;
       int mapID;
+      float _radius = 15.0f;
 
       void buildAreaList();
       QTreeWidgetItem* create_or_get_tree_widget_item(int area_id);