gui.hpp

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#ifndef _GUI_HPP
#define _GUI_HPP

#include "geometry.hpp"
#include "coloring.hpp"
#include "arak.hpp"
#include "estimation.hpp"

#include <qapplication.h>
#include <CGAL/IO/Qt_widget.h>
#include <CGAL/IO/Qt_widget_layer.h>
#include <qmainwindow.h>
#include <qtimer.h>
#include <qmutex.h>
#include <qlabel.h>

inline CGAL::Qt_widget& operator<<(CGAL::Qt_widget& widget, 
           Arak::Geometry::Polygon& poly) {
  assert(poly.is_convex()); // TODO: if polygon is non-convex, first
          // partition it into convex polygons using
          // CGAL::approx_convex_partition_2.
  int n = poly.size();
  if (n == 1)
    widget << poly[0];
  else if (n == 2)
    widget << *(poly.edges_begin());
  else if (n > 2) {
    const Arak::Geometry::Point p = poly[0];
    const Arak::Geometry::Point q = poly[1];
    for (int i = 2; i < n; i++)
      widget << Arak::Geometry::Triangle(poly[0], poly[i - 1], poly[i]);
  }
  return widget;
}

namespace Arak {


  enum VizType {
    PROC_AND_BD = 0,
    COLORING,
    PT_COL_EST_AND_BD,
    QUERY_PTS_AND_BD
  };

  QApplication* InitGui(int argc, 
      char** argv, 
      int width, 
      int height, 
      Coloring& c,
      ArakProcess& p,
      GridColorEstimator& e,
      QMutex& mutex,
      bool toolbar = true,
      double refreshRateHz = 2.0);

  class ColoringQTLayer : public CGAL::Qt_widget_layer {
    friend class ColoringQTWidget;
  protected:
    Coloring& c;
    ArakProcess& p;
    GridColorEstimator& e;
    QMutex& mutex;
    VizType curType;
  public:
    ColoringQTLayer(Coloring& c, 
        ArakProcess& p, 
        GridColorEstimator& e, 
        QMutex& mutex);
    void draw();
  };

  class ColoringQTWidget : public CGAL::Qt_widget {
    Q_OBJECT
  protected:
    QMainWindow* win;
    ColoringQTLayer* layer;
    QTimer* timer;
  private slots:
    void timeout();
  public:
    ColoringQTWidget(QMainWindow& win, 
         ColoringQTLayer& layer, 
         double refreshRateHz = 2.0);
    void mousePressEvent(QMouseEvent *e);
  };
}

#endif

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