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testdisplay.cxx

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// Test program for graphical display


// Event graphics include files
#include "gui/DisplayControl.h"
#include "gui/DisplayRep.h"
#include "control/PrintControl.h"
#include "gui/GUI.h"

#if defined(_DEBUG) && defined (_WIN32)
#  include <CRTDBG.H>
#endif


//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// A class with 3-d info. It will be represented by a cube beween (a,a,a) and (b,b,b),
// and has a name that should plotted in the middle. 
class SimpleBox 
{
public:
    SimpleBox(double a, double b, const std::string& name)
        :m_a(a), m_b(b), m_name(name){}
    ~SimpleBox(){}
    double a()const{return m_a;}
    double b()const{return m_b;}
    const std::string& name()const{return m_name;}
private:
    double m_a, m_b;
    std::string m_name;
};
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// The class that does the plotting in a Scene. It must implement
// an update() method to (re)plot the representation
class SimpleBoxRep : public gui::DisplayRep
{
public:
    SimpleBoxRep(const SimpleBox* pbox):m_pbox(pbox){}
    void update()
    {
        set_color("blue");
        double a = m_pbox->a(), b = m_pbox->b();
        move_to(Hep3Vector( a, a, a));
        line_to(Hep3Vector( a, b, a));
        line_to(Hep3Vector( b, b, a));
        line_to(Hep3Vector( b, a, a));
        line_to(Hep3Vector( a, a, a));
        line_to(Hep3Vector( a, a, b));
        line_to(Hep3Vector( a, b, b));
        line_to(Hep3Vector( b, b, b));
        line_to(Hep3Vector( b, a, b));
        line_to(Hep3Vector( a, a, b));
        move_to(Hep3Vector( a, b, a));
        line_to(Hep3Vector( a, b, b));
        move_to(Hep3Vector( b, a, a));
        line_to(Hep3Vector( b, a, b));
        move_to(Hep3Vector( b, b, a));
        line_to(Hep3Vector( b, b, b));
        double c = 0.5*(a+b); move_to(Hep3Vector(c,c,c));
        drawText(m_pbox->name());
        set_color("black");
    }
private:
    const SimpleBox* m_pbox;
};


//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//         main to demonstrate the ideas
int main(int, char** )
{
    // create the  display control. It manages the Scene and
    // controls. A Menu object is also started
    Menu menu;
    GUI* gui = GUI::createGUI();
    DisplayControl display(menu, gui->graphicsWindow());
    PrintControl printer(gui->textWindow("test"));
    
    // make a few simple boxes
    SimpleBox box1(10,20, "1");
    SimpleBox box2(30,40, "2");
    SimpleBox box3(-10,-20, "3");
    
    // add them to the display, some with buttons in the Display menu
    // to control their visibility
    display.add(new SimpleBoxRep(&box1), "box 1");
    display.add(new SimpleBoxRep(&box2), "box 2");
    display.add(new SimpleBoxRep(&box3));
    
    
    // tell the Menu object to start the message loop
    menu.run();
    
#if defined(_DEBUG) && defined (_WIN32)
    // this to verify that memory has been released
    _CrtSetDbgFlag( _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG ) | _CRTDBG_LEAK_CHECK_DF);
    delete gui;
#endif
    
    return 0;
}
//=============================================================
void WARNING(const char* s){std::cerr << s << std::endl;}
void FATAL(const char* s){std::cerr << s << std::endl; exit(-1);}
//=============================================================
#ifdef WIN32
extern "C" int UserMain(int argc, char* argv[])
{ return main(argc, argv); }
#endif

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