Hi,
I have a question about GuiBuilder . I've tried it both on Linux Redhat
9 and windows and it crashes or hangs when I try to add more than
one/two button.
Could it be related to my environment or is it just the current status
of the GuiBuilder?
By the way, great idea. I was really looking for something like that.
Thanks,
Alessandro
Valeriy Onuchin wrote:
>Hi,
>just a little bit of self advertisment ;-)
>Varun, you can use GuiBuilder to create such design in 5 min.
>TRootEmbeddedCanvas is not yet in GuiBuilder widget pallete
>but you can copy&paste it from guitest.C.
>An alternative to "divide your canvas" create several TRootEmbeddedCanvases.
>
>Regards. Valeriy
>
>
>
>>Varun,
>>
>>Your problem has nothing to do with the GUI. Simply divide your canvas
>>into multiple pads. See examples in the tutorials.
>>
>>Rene Brun
>>
>>Varun Gopalakrishna wrote:
>>
>>
>>>Hello rooters,
>>>
>>>I am having a lot of problems with the ROOT GUI..I had a couple of
>>>questions.
>>>My requirements are that I need to view multiple plots/histogram at the
>>>same time in the same window. what do i need to?
>>>
>>>I have tried my hand at the code below which just helps me to create a
>>>single frame and add my histogram to it. How do I add more child frames?
>>>
>>>Thanks
>>>
>>>Varun
>>>
>>>//-------------------------------------------------------------------------
>>>
>>>#include <TGClient.h>
>>> #include <TCanvas.h>
>>>#include <TF1.h>
>>>#include <TRandom.h>
>>> #include <TGButton.h>
>>>#include <TGFrame.h>
>>>#include <TRootEmbeddedCanvas.h>
>>>#include <RQ_OBJECT.h>
>>>
>>>class MyMainFrame
>>>{
>>>RQ_OBJECT("MyMainFrame")
>>>
>>>private: TGMainFrame *fMain;
>>> TRootEmbeddedCanvas *fEcanvas;
>>>
>>>public:
>>>
>>>MyMainFrame(const TGWindow *p,UInt_t w,UInt_t h);
>>>
>>>virtual ~MyMainFrame();
>>>
>>>void DoDraw();
>>>void drawthis();//*SIGNAL*
>>>};
>>>
>>>MyMainFrame::MyMainFrame(const TGWindow *p,UInt_t w,UInt_t h)
>>> {
>>>
>>>// Create a main frame
>>>
>>> fMain = new TGMainFrame(p,w,h);
>>>// Create canvas widjet
>>>
>>> fEcanvas = new TRootEmbeddedCanvas("Ecanvas",fMain,750,750);
>>>fMain->AddFrame(fEcanvas, new TGLayoutHints(kLHintsExpandX |
>>>kLHintsExpandY,10,10,10,1));
>>>// Create a horizontal frame widget with buttons
>>>TGHorizontalFrame *hframe = new TGHorizontalFrame(fMain,200,40);
>>>TGTextButton *draw = new TGTextButton(hframe,"&Last 5 Hours");
>>>draw->Connect("Clicked()","MyMainFrame",this,"drawthis()");
>>>hframe->AddFrame(draw, new TGLayoutHints(kLHintsCenterX,5,5,3,4));
>>>TGTextButton *exit = new TGTextButton(hframe,"&Stop",
>>>"gApplication->Terminate(0)");
>>>hframe->AddFrame(exit, new TGLayoutHints(kLHintsCenterX,5,5,3,4));
>>>fMain->AddFrame(hframe, new TGLayoutHints(kLHintsCenterX,2,2,2,2));
>>>
>>>TGTextButton *b1 = new TGTextButton(hframe,"&Last 10 Hours");
>>>b1->Connect("Clicked()","MyMainFrame",this,"drawthis()");
>>>hframe->AddFrame(b1, new TGLayoutHints(kLHintsCenterX,6,6,4,5));
>>>TGTextButton *stop = new TGTextButton(hframe,"&Exit",
>>>"gApplication->Terminate(0)");
>>>hframe->AddFrame(stop, new TGLayoutHints(kLHintsCenterX,6,6,4,5));
>>>fMain->AddFrame(hframe, new TGLayoutHints(kLHintsCenterX,2,2,2,2));
>>>
>>>//TGTextButton *exit = new TGTextButton(hframe,"&Exit");
>>>//exit->SetCommand("gApplication->Terminate()");
>>>/*fMain->AddFrame(hFrame1,fLayout1);
>>>fMain->AddFrame(hFrame2,fLayout2);
>>>fMain->Resize(frame->GetDefaultSize());
>>>// lays out frames
>>>fMain->MapSubwindows();
>>>// maps subwindows
>>>fMain->HideFrame(hFrame2);
>>>// hides frame hFrame2
>>>fMain->MapWindow(); // maps main frame
>>>
>>>// Set a name to the main frame
>>>
>>>fMain->SetWindowName("Simple Example");
>>>// Map all subwindows of main frame
>>>fMain->MapSubwindows();
>>>// Initialize the layout algorithm
>>>fMain->Resize(fMain->GetDefaultSize());
>>>// Map main frame
>>>fMain->MapWindow();
>>>}
>>>
>>>void MyMainFrame::DoDraw()
>>>{
>>>// Draws function graphics in randomly choosen interval
>>>TF1 *f1 = new TF1("f1","sin(x)/x",0,gRandom->Rndm()*10);
>>>f1->SetFillColor(19);
>>> f1->SetFillStyle(1);
>>>f1->SetLineWidth(3);
>>> f1->Draw();
>>>TCanvas *fCanvas = fEcanvas->GetCanvas();
>>> fCanvas->cd();
>>> fCanvas->Update();
>>> //printf("in draw this");
>>> //drawthis();
>>>}
>>>
>>>MyMainFrame::~MyMainFrame()
>>>{
>>>// Clean up used widgets: frames, buttons, layouthints
>>>fMain->Cleanup();
>>>delete fMain;
>>>}
>>>
>>>void example()
>>>{
>>>// Popup the GUI...
>>> new MyMainFrame(gClient->GetRoot(),200,200);
>>>}
>>>
>>>void MyMainFrame::drawthis(){
>>>
>>>{
>>> printf(" really inside the method!!!");
>>>
>>>Int_t i =0,pos=8;
>>>Double_t j=0.0;
>>>Char_t ch;
>>>Float_t max=0.0,min=0.0;
>>>// Create a new canvas.
>>>/*c1 = new TCanvas("c1","Dynamic Filling Example",200,10,700,500);
>>> c1->SetFillColor(42);
>>> c1->GetFrame()->SetFillColor(21);
>>> c1->GetFrame()->SetBorderSize(6);
>>> c1->GetFrame()->SetBorderMode(-1);*/
>>>
>>>// Create a new ROOT binary machine independent file.
>>>// Note that this file may contain any kind of ROOT objects, histograms,
>>>// pictures, graphics objects, detector geometries, tracks, events, etc..
>>>// This file is now becoming the current directory.
>>> FILE *fp=fopen("data.dat","r+");
>>> if (fp == NULL)
>>> printf("Cannot open file\n");
>>> TFile *hfile = gROOT->FindObject("hsimple.root"); if (hfile)
>>>hfile->Close();
>>> hfile = new TFile("hsimple.root","RECREATE","Demo ROOT file with
>>>histograms");
>>>
>>>// Create some histograms, a profile histogram and an ntuple
>>>hpx = new TH1F("hpx","This is the px distribution",100,-1,1);
>>>
>>>// Set canvas/frame attributes (save old attributes)
>>> hpx->SetFillColor(48);
>>>
>>> gBenchmark->Start("hsimple");
>>>
>>>// Fill histograms randomly
>>>//while(true) {
>>> TCanvas *fCanvas = fEcanvas->GetCanvas();
>>> fCanvas->cd();
>>> while((fscanf(fp,"%lf",&j)!=EOF)){
>>>
>>> printf("the value read is %lf\n",j);
>>> hpx->Fill(j);
>>> hpx->Draw();
>>> //fCanvas->cd();
>>> fCanvas->Modified();
>>> fCanvas->Update();
>>> // c1->Modified();
>>> //c1->Update();
>>> gBenchmark->Show("hsimple");
>>> gSystem->ProcessEvents();
>>> }
>>> //gBenchmark->Show("hsimple");
>>> pos=ftell(fp);
>>> fseek(fp,0,SEEK_END);
>>> if (pos!=ftell(fp))break;
>>> fseek(fp,pos,SEEK_SET);
>>>}
>>>//}
>>> fclose(fp);
>>>//gBenchmark->Show("hsimple");
>>>
>>>// Save all objects in this file
>>> hpx->SetFillColor(0);
>>> hfile->Write();
>>> hpx->SetFillColor(48);
>>>
>>>// Note that the file is automatically close when application terminates
>>>// or when the file destructor is called.
>>>}
>>>
>>>
>>
>>
>
>
>
--
__________________________________________________________________________
Alessandro Thea
Ph.D. Student
Dipartimento di Fisica dell'Universita' di Genova and
Istituto Nazionale di Fisica Nucleare, Sezione di Genova,
Via Dodecaneso 33, I-16146, Genova, Italia.
Tel: +39 010 3536468 E-Mail: Alessandro.Thea@ge.infn.it
__________________________________________________________________________
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