CanvasInTab.cc

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//
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// * technical work of the GEANT4 collaboration.                      *
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//
#include <TApplication.h>
#include <TGClient.h>
#include <TCanvas.h>
#include <TF1.h>
#include <TRandom.h>
#include <TGButton.h>
#include <TRootEmbeddedCanvas.h>
#include "CanvasInTab.hh"
#include "TGTab.h"
#include "TGFileDialog.h"


#include <vector>
#include <map>
#include <iostream>


const char* SaveFileDialog()
{
  // Prompt for file to be saved. Depending on navigation in
  // dialog the current working directory can be changed.
  // The returned file name is always with respect to the
  // current directory.
  
  const char *gSaveAsTypes[] = {
    "Macro files",  "*.C",
    "ROOT files",   "*.root",
    "PostScript",   "*.ps",
    "Encapsulated PostScript", "*.eps",
    "PDF files",    "*.pdf",
    "Gif files",    "*.gif",
    "PNG files",    "*.png",
    "All files",    "*",
    0,              0
  };
  
  static TGFileInfo fi;
  fi.fFileTypes = gSaveAsTypes;

  new TGFileDialog(gClient->GetRoot(), gClient->GetRoot(), kFDSave, &fi);
  
  return fi.fFilename;
}

CanvasInTab::CanvasInTab(const TGWindow *p,UInt_t w,UInt_t h)
: TGMainFrame(p,w,h)
{
  fpTab = new TGTab(this, 200, 200);
  
  fHintPlots = new TGLayoutHints(kLHintsExpandX|kLHintsExpandY,
                                 10,10,10,2);
  
  AddFrame(fpTab,
           new TGLayoutHints(kLHintsExpandX |
                             kLHintsExpandY, 10,10,10,1));
  
  fpTab->Resize();
  
  //-----
  TGHorizontalFrame* hframe=new TGHorizontalFrame(this, 200,40);
  
  TGTextButton* save = new TGTextButton(hframe,"&Save as ...");
  save->Connect("Clicked()","CanvasInTab",this,"SaveCanvas()");
  hframe->AddFrame(save, new TGLayoutHints(kLHintsCenterX,
                                           5,5,3,4));
  
  TGTextButton *exit = new TGTextButton(hframe,"&Exit ",
                                        "gApplication->Terminate()");
  hframe->AddFrame(exit, new TGLayoutHints(kLHintsCenterX,
                                           5,5,3,4));
  
  AddFrame(hframe,new TGLayoutHints(kLHintsCenterX,2,2,2,2));
  
  //-----
  // Sets window name and shows the main frame
  
  SetWindowName("PlotG");
  MapSubwindows();
  Resize(GetDefaultSize());
  MapWindow();
}

CanvasInTab::~CanvasInTab()
{
  Cleanup();
//  if(fpTab)
//  {
//    delete fpTab;
//  }
  
//  if(fHintPlots)
//    delete fHintPlots;
}

size_t CanvasInTab::AddCanvas(const char* name)
{
  size_t output = fEcanvas.size();
  auto compositeFrame = fpTab->AddTab(name);
  TRootEmbeddedCanvas* embeddedCanvas =
   new TRootEmbeddedCanvas(name,
                          compositeFrame,
                          500, 300);
  embeddedCanvas->SetAutoFit();
  fEcanvas.push_back(embeddedCanvas);
  compositeFrame->AddFrame(embeddedCanvas, fHintPlots);
  embeddedCanvas->SetContainer(compositeFrame);
  fpTab->Resize();
  fpTab->MapSubwindows();
//  fpTab->MapWindow();
  Resize();
  return output;
}

TCanvas* CanvasInTab::GetCanvas(int i)
{
  return fEcanvas[i]->GetCanvas();
}

void CanvasInTab::SaveCanvas()
{
  if(fpTab->GetNumberOfTabs() == 0) return;
  
  const char* name = SaveFileDialog();
  
  if(name == 0 || strlen(name) == 0) return;

  int current = fpTab->GetCurrent();
  TCanvas* canvas = fEcanvas[current]->GetCanvas();
  canvas->SaveAs(name);
}