test-Scene.cxx

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#include "Midad/Scene.h"
#include "Midad/Scenery.h"
#include "Midad/GuiMainWindow.h"
#include "Midad/GuiCanvas.h"
#include "Midad/GuiBox.h"
#include "Midad/GuiButton.h"

#include "TApplication.h"
#include "TRandom.h"
#include "TCanvas.h"
#include "TBox.h"

#include <iostream>
#include <sigc++/sigc++.h>
#include <sigc++/object_slot.h>
#include <sigc++/class_slot.h>

class MyScenery : public Midad::Scenery
{
    TRandom rand;
public:
    MyScenery() { this->Diddle(); }
    ~MyScenery() {}
    void Diddle() {
        this->ClearPrimitives();
        double x1 = rand.Uniform();
        double y1 = rand.Uniform();
        double x2 = rand.Uniform();
        double y2 = rand.Uniform();
        cerr << "Diddle the box: "
             << "(" << x1 << "," << y1 << ")-->"
             << "(" << x2 << "," << y2 << ")\n";
        TBox* box = new TBox(x1,y1,x2,y2);
        this->AddPrimitive(box);
        box->SetFillColor(rand.Integer(50));
        modified.emit();
    }
};

class DualSignal {
public:
    SigC::Signal0<void> sig, done;
    void emit() { sig.emit(); done.emit(); }
};

void add_box(Midad::Scene* s, SigC::Signal0<void>* sig)
{
    cerr << "Add a box\n";
    MyScenery* ms = manage(new MyScenery);
    s->Add(*ms);
    sig->connect(SigC::slot(*ms,&MyScenery::Diddle));
    s->Update();
}

int main (int argc, char *argv[])
{
    TApplication theApp("App", &argc, argv);

    GuiMainWindow mw(300,400);
    GuiVBox vbox(mw);
    vbox.SetLayoutHints(vbox.GetLayoutHints() | kLHintsExpandX);
    mw.Add(vbox);

    GuiCanvas gc(vbox);
    vbox.Add(gc);
    
    Midad::Scene s("test-scene","generic-scene-type");

    TCanvas* canvas = gc.GetCanvas();
    canvas->cd();
    s.Draw();

    GuiHBox hbox(vbox);
    vbox.Add(hbox);

    DualSignal dualsig;
    dualsig.done.connect(SigC::slot(s,&Midad::Scene::Update));

    GuiTextButton* but = manage(new GuiTextButton(hbox,"modify"));
    hbox.Add(*but);
    but->clicked.connect(SigC::slot_class(dualsig,&DualSignal::emit));

    GuiTextButton* addbut = manage(new GuiTextButton(hbox,"add"));
    hbox.Add(*addbut);
    addbut->clicked.connect(SigC::bind(SigC::slot(add_box),&s,&dualsig.sig));

    but = manage(new GuiTextButton(hbox,"update"));
    hbox.Add(*but);
    but->clicked.connect(SigC::slot(s,&Midad::Scene::Update));


    mw.ShowAll();
    mw.SetMinSize();
    mw.ConnectClose();

    theApp.Run();
    return 0;
} // end of main()

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