#include "library.h"

struct component;

const int maxw=640, maxh=480;
int lastx=0, lasty=0, maxy=0;
const int maxcomponents=100;
component * all[maxcomponents];
int numcomponents=0;

const int lightgrey=EncodeColor(0.8, 0.8, 0.8);

struct component
{ int xpos, ypos, width, height;
  string text;
  component(int w, int h, string s="");
  virtual void draw(void); };

component::component(int w, int h, string s)
 { width=w;
   height=h;
   if (lastx+width>=maxw)
    { lasty=maxy;
      lastx=0; }
   xpos=lastx;
   ypos=lasty;
   lastx=xpos+width;
   if (ypos+height>maxy)
     maxy=ypos+height;
   text=s;
   all[numcomponents]=this;
   numcomponents+=1; }

void component::draw(void)
 { PenColor(lightgrey);
   FillRectangleXYWH(xpos, ypos, width, height);
   PenColor(PEN_BLACK);
   DrawRectangleXYWH(xpos, ypos, width, height);
   int w, h;
   MeasureText(text, w, h);
   MoveTo(xpos+width/2-w/2, ypos+height/2-h/2);
   WriteText(text); }

void nextline(void)
 { lastx=0;
   lasty=maxy; }

void show(void)
 { for (int i=0; i<numcomponents; i+=1)
     all[i]->draw(); }

void main(void)
{ MakeWindow(maxw, maxh);
  new component(100, 30, "abc");
  new component(200, 100, "second");
  nextline();
  new component(80, 80, "hello");
  new component(300, 40, "you");
  show(); }