#include "TGFrame.h"
#include "TGButton.h"
#include "TGCanvas.h"
#include "TGTextEntry.h"

class Table : public TGMainFrame {

private:

public:
   Table(const TGWindow *p, UInt_t w, UInt_t h, Int_t columns, Int_t rows);
   virtual ~Table() { }

   void Create(Int_t columns, Int_t rows);

   ClassDef(Table, 0)
};


Table::Table(const TGWindow *p, UInt_t w, UInt_t h, Int_t columns, Int_t rows) :
   TGMainFrame(p, w, h)
{
   // Create main frame

   Create(columns, rows);
   SetCleanup(kDeepCleanup);
}

void Table::Create(Int_t columns, Int_t rows) 
{
   TGLayoutHints *layout1 = new TGLayoutHints(kLHintsTop | kLHintsCenterX, 20, 20, 10, 0);
   TGLayoutHints *layout2 = new TGLayoutHints(kLHintsTop | kLHintsExpandX, 1, 1, 1, 1);

   TGCanvas *Viewer = new TGCanvas(this, 100, 100, kFixedWidth | kFixedHeight);
   TGCompositeFrame *Container = new TGCompositeFrame(Viewer->GetViewPort(), 50, 50);
   Container->SetCleanup(kDeepCleanup);
   Viewer->GetViewPort()->SetCleanup(kDeepCleanup);
   Viewer->SetContainer(Container);
   AddFrame(Viewer, new TGLayoutHints(kLHintsExpandX | kLHintsExpandY));

   TGHorizontalFrame *hf = new TGHorizontalFrame(Container, 200, 300);

   TGTextButton **But = new TGTextButton *[rows + columns];
   TGTextEntry **Entry = new TGTextEntry *[rows * columns];
   TGVerticalFrame **Column = new TGVerticalFrame *[columns];
   for (int i = 0; i < columns; i++) {
      Column[i] = new TGVerticalFrame(hf, 200, 300);
      hf->AddFrame(Column[i], new TGLayoutHints (kLHintsTop | kLHintsLeft, 0, 0, 0, 0));
      if (i == 0) {
         for (int j = 0; j < rows; j++) {
            if (j == 0)
               But[j] = new TGTextButton(Column[i], "                   ");
            else
               But[j] = new TGTextButton(Column[i], TString::Format("      Line %d      ", j));
            Column[i]->AddFrame(But[j], layout2);
         }
      }
      else {
         for (int j = 0; j < rows; j++) {
            if (j == 0) {
               But[(i*rows)+j] = new TGTextButton(Column[i], TString::Format("Column %d", i));
               Column[i]->AddFrame(But[(i*rows)+j], layout2);
            }
            else {
               Entry[(i*rows)+j] = new TGTextEntry(Column[i]);
               Column[i]->AddFrame(Entry[(i*rows)+j], layout2);
            }
         }
      }
   }
   Container->AddFrame(hf, layout1);
  
   MapSubwindows();
   MapWindow();  
   Layout();
}

void test_table(Int_t columns = 5, Int_t rows = 20)
{
   new Table(gClient->GetRoot(), 400, 200, columns, rows);
}