ListWindow.cxx

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////////////////////////////////////////////////////////////////////////
/// \file ListWindow.h
/// \brief A window containing a list of objects
///
/// \version $Id: ListWindow.cxx,v 1.1.1.1 2010-12-22 16:18:52 p-nusoftart Exp $
/// \author  jpaley@anl.gov
////////////////////////////////////////////////////////////////////////
#include <cassert>
#include <iostream>
#include <vector>
#include "TROOT.h"
#include "TGClient.h"
#include "TGWindow.h"
#include "TGFrame.h"
#include "TRootEmbeddedCanvas.h"
#include "TCanvas.h"
#include "TH1.h"
#include "nutools/EventDisplayBase/evdb.h"
#include "nutools/EventDisplayBase/ListWindow.h"
#include "nutools/EventDisplayBase/MenuBar.h"
#include "nutools/EventDisplayBase/ButtonBar.h"
#include "nutools/EventDisplayBase/Canvas.h"
#include "nutools/EventDisplayBase/StatusBar.h"
#include "nutools/EventDisplayBase/ObjListCanvas.h"

namespace evdb{

  ///
  /// The collection of open windows
  ///
  static std::vector<ListWindow*> gsWindows(64);

  //......................................................................

  ///
  /// Tables of information for display windows
  ///
  static std::vector<std::string>     gsName;
  static std::vector<std::string>     gsDescription;
  static std::vector<unsigned int>    gsHeight;
  static std::vector<unsigned int>    gsWidth;
  static std::vector<ObjListCanvasCreator_t> gsObjListCanvasCreator;

  //......................................................................

  const std::vector<std::string>& ListWindow::Names() { return gsName; }

  //......................................................................

  ///
  /// Register a display canvas for use in creating windows
  ///
  void ListWindow::Register(const char* name,
                            const char* description,
                            unsigned int h,
                            unsigned int w,
                            ObjListCanvasCreator_t creator)
  {
    gsName.push_back(std::string(name));
    gsDescription.push_back(std::string(description));
    gsHeight.push_back(h);
    gsWidth.push_back(w);
    gsObjListCanvasCreator.push_back(creator);
  
    if (gsName.size()>gsWindows.size()) gsWindows.resize(gsName.size());
  }

  //......................................................................

  ///
  /// Create a window given a system-assigned ID number
  ///
  int ListWindow::OpenWindow(int type) 
  {
    unsigned id = 0;
    if (type>0) id = type;
    if (id>=gsName.size()) return 0;

    ListWindow* w = gsWindows[id];
    if (w==0) {
      w = gsWindows[id] = new ListWindow(id);
    }
    if (w==0) return 0;
    w->Raise();
    w->Draw();
  
    return 1;
  }

  //......................................................................

  ListWindow::ListWindow(int id) 
  {
    if (gROOT->IsBatch()) assert(0);
    assert(gClient);
    const TGWindow* tgw = gClient->GetRoot();
    assert(tgw);

    // Create the main application window. I need a resize to get the
    // window to draw the first time, so create the window slightly
    // smaller than the intended size. Bogus, but so it goes...
    unsigned int w = gsWidth[id];
    unsigned int h = gsHeight[id];
    fMain = new TGMainFrame(tgw, w-1, h-1);

    // Add items to the main window
    fMenuBar   = new MenuBar(fMain);
    fButtonBar = new ButtonBar(fMain);

    fDisplay   = (*gsObjListCanvasCreator[id])(fMain);
    fStatusBar = new StatusBar(fMain);
  
    fMain->SetWindowName(gsName[id].c_str());
  
    // Now that all the subwindows are attached, do the final layout
    fMain->MapSubwindows();
    fMain->MapWindow();
  
    // Don't understand this, but I need a resize to get things to draw
    // the first time...
    fMain->Resize(w,h);

    // Plug the display into its signal/slots
    fDisplay->Connect();

    // fMain->Connect("CloseWindow()","evdb::ListWindow",this,"CloseWindow()");

    // Add to list of windows open
    gsWindows[id] = this;

  }

  //......................................................................

  void ListWindow::Draw(const char* opt) { fDisplay->Draw(opt); }

  //......................................................................

  void ListWindow::CloseWindow() { delete this; }

  //......................................................................

  ListWindow::~ListWindow()
  {
    if (fDisplay)   { delete fDisplay;   fDisplay   = 0; } 
    if (fStatusBar) { delete fStatusBar; fStatusBar = 0; }
    if (fButtonBar) { delete fButtonBar; fButtonBar = 0; }
    if (fMenuBar)   { delete fMenuBar;   fMenuBar   = 0; }
    if (fMain)      { delete fMain;      fMain      = 0; }
    for (unsigned int i=0; i<gsWindows.size(); ++i) {
      if (gsWindows[i] == this) gsWindows[i] = 0;
    }
  }

  //......................................................................

  void ListWindow::Raise() { fMain->RaiseWindow(); }

}//namespace
////////////////////////////////////////////////////////////////////////