🚀 go-pugleaf

I was tring to write a small graphical tree browser using
Minidraw as a guide.  I'm running  Sun OS 4.1 on a Sun 3/60
use Sun's C++ compiler, and their special debugger.

Here what I get when I run the program.
Reading symbolic information...
Read 30240 symbols
(dbx) run
Running: main
signal SEGV (no mapping at the fault address) in Interactor::DoConfig at line 54
0 in file "Hier.c"
"Hier.c" has only 59 lines

All I want is.

  --------------------
  .MenuBar           .
  .------------------.
  .			 	 .  Eventually scrollbars.
  .	GraphicBlock    .
  .				 .
  .				 .
  .				 .
  .				 .
  --------------------

Here is some of the code.


class Hier : public MonoScene {
  public:
   Hier();
     Interactor *Interior();
   private:
     Interactor *MakeMenuBar();
   public:
     MenuBar *menubar;
     View    *view;
};
       
class View : public GraphicBlock {
public:
   View(Hier*, Picture*);
   virtual void Handle(Event&);
   void Manipulate(Event&);
   void Add(Graphic*);
   void Clear();
   Picture* GetPicture() {
	return (Picture*) GetGraphic();
   }

class Command : public MenuItem {
public:
   Command(View*, const char* label);
protected:
   View* view;
};

class Opendb : public Command {
public:
   Opendb(View* v) : (v, "Open") { }
   virtual void Do();
};

void main (int argc, char** argv) 
{
     World* world = new World("Hierarchy", argc, argv);
     InitPPaint();
     world->Insert(new Hier);
     world->Run();
}

Hier::Hier()
{
     view = new View(this, new Picture);
     //Insert(new Frame(Interior()));
     Insert(Interior());
}

Interactor *Hier::MakeMenuBar()
{
     PulldownMenu *FileMenu,  *ActionMenu;
     MenuBar *thebar = new MenuBar();
     FileMenu = new PulldownMenu(this);
stuff deleted.
     ActionMenu->Include(new Removedb(view));
     thebar->Include(FileMenu);
     thebar->Include(ActionMenu);
     return thebar;
}

View::View(Hier *h, Picture *p) : (nil, p)
{
     hier = h;
     input = new Sensor(updownEvents);
     shape->width = round(15*cm);
     shape->height = round(10*cm);
}
-- 
----
Byron F. Warner					warner@cs.unc.edu
University of North Carolina - Chapel Hill	Computer Sci Department
"The opinions expressed here should be yours."