Problem using QTabWidget

[UchihaMk]

Hi All...
Thanks very much for both suggestions. I will try to make my code better.

I have pass through the including library and code into the project directly in the CMakeLists.txt but even if i use in the currentChange method this code

qApp->processEvents(QEventLoop::AllEvents);

qApp->processEvents(QEventLoop::AllEvents);

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when i switch from one page of the tab to another the content is fused togheter...

Anyone had this problem and know how to help my out of this situation?

[norobro]

The code that you have shown works fine with a couple of tweaks:

#include <QtGui>
class MyTabWidget : public QTabWidget
{
    Q_OBJECT
public:
    MyTabWidget(QWidget *parent = 0) : QTabWidget(parent) {
        qDebug() << "created";
    }
public slots:
void prova(int index){
            QMessageBox* msg = new QMessageBox(this->parentWidget());
            msg->setWindowTitle("Hello !");
            msg->setText("Selected Tab index is : "+ QString::number(index));
            msg->show();
        }
};
 
int main(int argc, char *argv[]){
    QApplication app(argc, argv);
    QMainWindow w;
    QWidget *centralWidget = new QWidget(&w);
    centralWidget->setFixedSize(1200,800);
    MyTabWidget *tabs = new MyTabWidget(centralWidget);
    tabs->setDocumentMode(true);
    tabs->setFixedSize(1200, 200);
    tabs->addTab(new QLabel("Page 1"),"Controllo");
    tabs->addTab(new QLabel("Page 2"),"Registrazione");
    tabs->setTabsClosable(false);
    QObject::connect(tabs,SIGNAL(currentChanged(int)),tabs,SLOT(prova(int)));
    w.setCentralWidget(centralWidget);
    w.show();
    return app.exec();
}
#include "main.moc"

#include <QtGui>
class MyTabWidget : public QTabWidget
{
    Q_OBJECT
public:
    MyTabWidget(QWidget *parent = 0) : QTabWidget(parent) {
        qDebug() << "created";
    }
public slots:
void prova(int index){
            QMessageBox* msg = new QMessageBox(this->parentWidget());
            msg->setWindowTitle("Hello !");
            msg->setText("Selected Tab index is : "+ QString::number(index));
            msg->show();
        }
};

int main(int argc, char *argv[]){
    QApplication app(argc, argv);
    QMainWindow w;
    QWidget *centralWidget = new QWidget(&w);
    centralWidget->setFixedSize(1200,800);
    MyTabWidget *tabs = new MyTabWidget(centralWidget);
    tabs->setDocumentMode(true);
    tabs->setFixedSize(1200, 200);
    tabs->addTab(new QLabel("Page 1"),"Controllo");
    tabs->addTab(new QLabel("Page 2"),"Registrazione");
    tabs->setTabsClosable(false);
    QObject::connect(tabs,SIGNAL(currentChanged(int)),tabs,SLOT(prova(int)));
    w.setCentralWidget(centralWidget);
    w.show();
    return app.exec();
}
#include "main.moc"

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What do "window" and "window0" point to?

[UchihaMk]

So i show you all the code:

#include "mainwindow.h"
#include "registrazione.h"
#include <QtGui>
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkImageViewer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
#include <vtkRenderer.h>
#include <vtkJPEGReader.h>
#include <QCheckBox>
#include <QVTKWidget.h>
#include "MyTabWidget.h"
 
 
using namespace std;
 
 
int main(int argc, char *argv[]){
 
 
	QApplication a(argc, argv);
 
	MainWindow w;
 
	QPushButton *Dati = new QPushButton("Inserisci dati");
	Dati->setFixedHeight(20);
	Dati->setFixedWidth(150);
 
	QPushButton *Registrazione = new QPushButton("Avvia registrazione");
	Registrazione->setFixedHeight(20);
	Registrazione->setFixedWidth(150);
	Registrazione->setEnabled(false);
 
	QPushButton *Seleziona = new QPushButton("Point Pick");
	Seleziona->setEnabled(false);
	Seleziona->setFixedHeight(20);
	Seleziona->setFixedWidth(150);
 
	QPushButton *impS = new QPushButton("Cambia source");
	impS->setFixedHeight(20);
	impS->setFixedWidth(150);
 
	QPushButton *impT = new QPushButton("Cambia target");
	impT->setFixedHeight(20);
	impT->setFixedWidth(150);
 
	QPushButton *Carica = new QPushButton("Carica PCD");
	Carica->setFixedHeight(20);
	Carica->setFixedWidth(150);
 
	QPushButton *Controlla = new QPushButton("Controlla");
	Controlla->setFixedHeight(20);
	Controlla->setFixedWidth(150);
	Controlla->setEnabled(false);
 
	QLabel *l0 = new QLabel("Posizione della point cloud da controllare");
 
	QLabel *l1 = new QLabel("Posizione della point cloud sorgente");
 
	QLabel *l2 = new QLabel("Posizione della point cloud destinazione");
 
	QLabel *interazioni = new QLabel("Interazioni: ");
	interazioni->setFixedWidth(150);
	QTextEdit *testo0 = new QTextEdit("");
	testo0->verticalScrollBar()->setVisible(false);
	testo0->setFixedHeight(20);
	testo0->setFixedWidth(300);
	testo0->setEnabled(false);
 
 
	QTextEdit *testo1 = new QTextEdit("");
	testo1->verticalScrollBar()->setVisible(false);
	testo1->setFixedHeight(20);
	testo1->setFixedWidth(300);
	testo1->setEnabled(false);
 
	QTextEdit *testo2 = new QTextEdit("");
	testo2->setFixedHeight(20);
	testo2->setFixedWidth(300);
	testo2->setEnabled(false);
	testo2->verticalScrollBar()->setVisible(false);
 
	QVTKWidget *widget0 = new QVTKWidget;
	widget0->setVisible(false);
 
 
	QVTKWidget *widget = new QVTKWidget;
	widget->setVisible(false);
 
 
	QWidget *window0 = new QWidget(); 
 
	QWidget *window = new QWidget(); 
 
	QHBoxLayout *ly0 = new QHBoxLayout();
	ly0->addWidget(l0);
	ly0->addWidget(testo0);
	ly0->addWidget(Carica);
	ly0->addWidget(Controlla);	
 
	QHBoxLayout *ly1 = new QHBoxLayout();
	ly1->addWidget(l1);
	ly1->addWidget(l2);
 
	QHBoxLayout *ly2 = new QHBoxLayout();
	ly2->addWidget(testo1);
	ly2->addWidget(impS);
	ly2->addWidget(testo2);
	ly2->addWidget(impT);
 
 
	QHBoxLayout *ly3 = new QHBoxLayout();
	ly3->addWidget(interazioni);
	ly3->addWidget(Registrazione);
	ly3->addWidget(Seleziona);
 
 
	QVBoxLayout *layout0 = new QVBoxLayout();
	layout0->addLayout(ly0);
	layout0->addWidget(widget0);
 
	QVBoxLayout *layout = new QVBoxLayout();
	layout->addWidget(Dati); 
	layout->addLayout(ly1); layout->addLayout(ly2); layout->addLayout(ly3);
	layout->addWidget(widget);
 
 
	window0->setLayout(layout0);
	window0->setGeometry(1000,0,1200,800);
	window->setVisible(false);
	window0->show();
 
 
	window->setLayout(layout);
	window->setGeometry(1000,0,1200,800);
	window->setVisible(false);
	window->show();
 
	QWidget *centralWidget = new QWidget(&w);
	centralWidget->setFixedSize(1200,200);
 
 
	MyTabWidget *tabs = new MyTabWidget(centralWidget);
	tabs->setDocumentMode(false);
	tabs->setFixedSize(1200, 800);
	tabs->addTab(window0,"Controllo");
	tabs->addTab(window,"Registrazione");
	tabs->setTabsClosable(false);
	tabs->update();
	QObject::connect(tabs,SIGNAL(currentChanged(int)),tabs,SLOT(prova(int)));
 
	w.setCentralWidget(centralWidget);
	w.setGeometry(1000,0,1200,800);
	w.setWindowTitle("Progetto di Elaborazione tridimensionale");
	w.show();
 
	w.setVisualizer(testo0, Carica,Controlla, widget0);
    w.setVisualizer(Dati, Registrazione,testo1,testo2,widget,impS,impT,Seleziona);//, Plan, Radious);
 
    return a.exec();
}

#include "mainwindow.h"
#include "registrazione.h"
#include <QtGui>
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkImageViewer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
#include <vtkRenderer.h>
#include <vtkJPEGReader.h>
#include <QCheckBox>
#include <QVTKWidget.h>
#include "MyTabWidget.h"


using namespace std;


int main(int argc, char *argv[]){


	QApplication a(argc, argv);

	MainWindow w;

	QPushButton *Dati = new QPushButton("Inserisci dati");
	Dati->setFixedHeight(20);
	Dati->setFixedWidth(150);

	QPushButton *Registrazione = new QPushButton("Avvia registrazione");
	Registrazione->setFixedHeight(20);
	Registrazione->setFixedWidth(150);
	Registrazione->setEnabled(false);

	QPushButton *Seleziona = new QPushButton("Point Pick");
	Seleziona->setEnabled(false);
	Seleziona->setFixedHeight(20);
	Seleziona->setFixedWidth(150);
	  
	QPushButton *impS = new QPushButton("Cambia source");
	impS->setFixedHeight(20);
	impS->setFixedWidth(150);

	QPushButton *impT = new QPushButton("Cambia target");
	impT->setFixedHeight(20);
	impT->setFixedWidth(150);

	QPushButton *Carica = new QPushButton("Carica PCD");
	Carica->setFixedHeight(20);
	Carica->setFixedWidth(150);

	QPushButton *Controlla = new QPushButton("Controlla");
	Controlla->setFixedHeight(20);
	Controlla->setFixedWidth(150);
	Controlla->setEnabled(false);

	QLabel *l0 = new QLabel("Posizione della point cloud da controllare");
	
	QLabel *l1 = new QLabel("Posizione della point cloud sorgente");

	QLabel *l2 = new QLabel("Posizione della point cloud destinazione");

	QLabel *interazioni = new QLabel("Interazioni: ");
	interazioni->setFixedWidth(150);
	QTextEdit *testo0 = new QTextEdit("");
	testo0->verticalScrollBar()->setVisible(false);
	testo0->setFixedHeight(20);
	testo0->setFixedWidth(300);
	testo0->setEnabled(false);

	
	QTextEdit *testo1 = new QTextEdit("");
	testo1->verticalScrollBar()->setVisible(false);
	testo1->setFixedHeight(20);
	testo1->setFixedWidth(300);
	testo1->setEnabled(false);

	QTextEdit *testo2 = new QTextEdit("");
	testo2->setFixedHeight(20);
	testo2->setFixedWidth(300);
	testo2->setEnabled(false);
	testo2->verticalScrollBar()->setVisible(false);

	QVTKWidget *widget0 = new QVTKWidget;
	widget0->setVisible(false);


	QVTKWidget *widget = new QVTKWidget;
	widget->setVisible(false);


	QWidget *window0 = new QWidget(); 

	QWidget *window = new QWidget(); 

	QHBoxLayout *ly0 = new QHBoxLayout();
	ly0->addWidget(l0);
	ly0->addWidget(testo0);
	ly0->addWidget(Carica);
	ly0->addWidget(Controlla);	

	QHBoxLayout *ly1 = new QHBoxLayout();
	ly1->addWidget(l1);
	ly1->addWidget(l2);
	
	QHBoxLayout *ly2 = new QHBoxLayout();
	ly2->addWidget(testo1);
	ly2->addWidget(impS);
	ly2->addWidget(testo2);
	ly2->addWidget(impT);

	
	QHBoxLayout *ly3 = new QHBoxLayout();
	ly3->addWidget(interazioni);
	ly3->addWidget(Registrazione);
	ly3->addWidget(Seleziona);


	QVBoxLayout *layout0 = new QVBoxLayout();
	layout0->addLayout(ly0);
	layout0->addWidget(widget0);

	QVBoxLayout *layout = new QVBoxLayout();
	layout->addWidget(Dati); 
	layout->addLayout(ly1); layout->addLayout(ly2); layout->addLayout(ly3);
	layout->addWidget(widget);


	window0->setLayout(layout0);
	window0->setGeometry(1000,0,1200,800);
	window->setVisible(false);
	window0->show();
	
	
	window->setLayout(layout);
	window->setGeometry(1000,0,1200,800);
	window->setVisible(false);
	window->show();

	QWidget *centralWidget = new QWidget(&w);
	centralWidget->setFixedSize(1200,200);

	
	MyTabWidget *tabs = new MyTabWidget(centralWidget);
	tabs->setDocumentMode(false);
	tabs->setFixedSize(1200, 800);
	tabs->addTab(window0,"Controllo");
	tabs->addTab(window,"Registrazione");
	tabs->setTabsClosable(false);
	tabs->update();
	QObject::connect(tabs,SIGNAL(currentChanged(int)),tabs,SLOT(prova(int)));

	w.setCentralWidget(centralWidget);
	w.setGeometry(1000,0,1200,800);
	w.setWindowTitle("Progetto di Elaborazione tridimensionale");
	w.show();

	w.setVisualizer(testo0, Carica,Controlla, widget0);
    w.setVisualizer(Dati, Registrazione,testo1,testo2,widget,impS,impT,Seleziona);//, Plan, Radious);

    return a.exec();
}

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[norobro]

What does the setVisualizer method do?

[UchihaMk]

void MainWindow::setVisualizer(QTextEdit *t0, QPushButton *c, QPushButton *ct,  QVTKWidget *w){
	testo0 = t0;
	Cambia = c;
	Controlla = ct;
	finestra0 = w;
 
	QObject::connect(c, SIGNAL(clicked()), this ,SLOT(impostaC()));
    QObject::connect(ct, SIGNAL(clicked()), this ,SLOT(controllaPCD()));
	//finestra0->show();
	//aggiornaFinestra(daControllare,finestra0);
}
 
void MainWindow::setVisualizer(QPushButton *d, QPushButton *r, QTextEdit *t1, QTextEdit *t2, QVTKWidget *w, QPushButton *s, QPushButton *t, QPushButton *sel, QWidget *lgr){
    Dati = d; //inserire entrambi i percorsi contemporaneamente
	Registrazione = r; //bottone che avvia la registrazione
    ImpS=s; //cambiare percorso sorgente
	ImpT=t; //cambiare percorso target
	Seleziona=sel; //bottone selezione pointPick
    testo1 = t1; //inserimento percorso source
	testo2 = t2; //inserimento percorso target
    finestra = w;
	loggerBase=lgr;
 
	//routine di risposta
    QObject::connect(d, SIGNAL(clicked()), this ,SLOT(reg()));
    QObject::connect(r, SIGNAL(clicked()), this ,SLOT(esegui()));
    QObject::connect(s, SIGNAL(clicked()), this ,SLOT(impostaS()));
    QObject::connect(t, SIGNAL(clicked()), this ,SLOT(impostaT()));
    QObject::connect(sel, SIGNAL(clicked()), this ,SLOT(selezionatore()));
 
	//aggiornaFinestra(daControllare,finestra);
	//rendere visibile la finestra di
    //finestra->setVisible(true);
    //finestra->show();
    return;
}

void MainWindow::setVisualizer(QTextEdit *t0, QPushButton *c, QPushButton *ct,  QVTKWidget *w){
	testo0 = t0;
	Cambia = c;
	Controlla = ct;
	finestra0 = w;
	
	QObject::connect(c, SIGNAL(clicked()), this ,SLOT(impostaC()));
    QObject::connect(ct, SIGNAL(clicked()), this ,SLOT(controllaPCD()));
	//finestra0->show();
	//aggiornaFinestra(daControllare,finestra0);
}

void MainWindow::setVisualizer(QPushButton *d, QPushButton *r, QTextEdit *t1, QTextEdit *t2, QVTKWidget *w, QPushButton *s, QPushButton *t, QPushButton *sel, QWidget *lgr){
    Dati = d; //inserire entrambi i percorsi contemporaneamente
	Registrazione = r; //bottone che avvia la registrazione
    ImpS=s; //cambiare percorso sorgente
	ImpT=t; //cambiare percorso target
	Seleziona=sel; //bottone selezione pointPick
    testo1 = t1; //inserimento percorso source
	testo2 = t2; //inserimento percorso target
    finestra = w;
	loggerBase=lgr;
	
	//routine di risposta
    QObject::connect(d, SIGNAL(clicked()), this ,SLOT(reg()));
    QObject::connect(r, SIGNAL(clicked()), this ,SLOT(esegui()));
    QObject::connect(s, SIGNAL(clicked()), this ,SLOT(impostaS()));
    QObject::connect(t, SIGNAL(clicked()), this ,SLOT(impostaT()));
    QObject::connect(sel, SIGNAL(clicked()), this ,SLOT(selezionatore()));
	
	//aggiornaFinestra(daControllare,finestra);
	//rendere visibile la finestra di
    //finestra->setVisible(true);
    //finestra->show();
    return;
}

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This is the code, is a method of union from the main code and the class MainWindow, it simply set the pointer to the Widget in main.cpp and create the slot for some signal