CanvasViewer.cxx

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#include "CanvasViewer.h"

#include <TGFrame.h>
#include <TRootEmbeddedCanvas.h>
#include <TGTab.h>
#include <TApplication.h>


CanvasTab::CanvasTab() {}
CanvasTab::~CanvasTab() {}

void CanvasTab::Init(TCanvas* /*canvas*/)
{
    //cerr << "CanvasTab::Init()\n";
}
void CanvasTab::Expose()
{
    //cerr << "CanvasTab::Expose()\n";
}


CanvasTabs::CanvasTabs(TGCompositeFrame* parent)
{
    fParent = parent;
    fTab = new TGTab(parent,800,800);
    TGLayoutHints *lh = new TGLayoutHints(kLHintsTop | kLHintsLeft | kLHintsExpandX |
                                          kLHintsExpandY, 2, 2, 5, 1);
    parent->AddFrame(fTab, lh);
    
    fTab->Connect("Selected(Int_t)", "CanvasTabs", this, "DoTab(Int_t)");

}

void CanvasTabs::AdoptTab(const char* label, CanvasTab* ctab)
{
    TGCompositeFrame *tf = fTab->AddTab(label);
    
    TGCompositeFrame *cf = new TGCompositeFrame(tf, 800, 800, kVerticalFrame);
    
    TGLayoutHints* lh = new TGLayoutHints(kLHintsTop | kLHintsLeft | kLHintsExpandX |
                                          kLHintsExpandY, 5, 5, 5, 5);
    
    TRootEmbeddedCanvas *rec = new TRootEmbeddedCanvas(label, cf, 800,800);
    cf->AddFrame(rec,lh);
    tf->AddFrame(cf,lh);
    
    fTab->Layout();
    
    TCanvas* can = rec->GetCanvas();
    can->cd();
    ctab->Init(can);
    fCTabs.push_back(ctab);
    
    //fTab->MapSubwindows();
    //fTab->Layout();
    
    fParent->Resize(800,800);
    //fParent->Layout();
    fParent->MapSubwindows();
}

void CanvasTabs::DoTab(Int_t tab) 
{
    fCTabs[tab]->Expose();
}

CanvasViewer::CanvasViewer()
{
    fMain   = new TGMainFrame(0, 800,800);
    fMain->SetCleanup(kDeepCleanup);
    fMain->Connect("CloseWindow()", "CanvasViewer", this, "CloseWindow()");
    
    fMain->SetWindowName("MINOS Canvas Viewer");
    
    fCTabs = new CanvasTabs(fMain);

    fMain->Resize(800,800);
    fMain->Layout();
    fMain->MapSubwindows();
    fMain->MapWindow();
    
    //fMain->Print();
}

void CanvasViewer::CloseWindow() 
{
    gApplication->Terminate();
}

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