QScrollArea ?

[whitefurrows]

Hello,

i have center a QWidget in a QScrollArea, but when i resize the QWidget move that to the left corner on top.

Header file:

#ifndef TESTWIDGET_H
#define TESTWIDGET_H
 
#include <QtGui>
 
class TestWidget : public QWidget{
    Q_OBJECT
public:
    TestWidget(QWidget * parent=0, const char * name=0, Qt::WFlags f=0);
    ~TestWidget();
 
	QPushButton *bZoom;
 
public slots:
	void slotShrink();
};
 
#endif

#ifndef TESTWIDGET_H
#define TESTWIDGET_H

#include <QtGui>

class TestWidget : public QWidget{
    Q_OBJECT
public:
    TestWidget(QWidget * parent=0, const char * name=0, Qt::WFlags f=0);
    ~TestWidget();

	QPushButton *bZoom;

public slots:
	void slotShrink();
};

#endif

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Implementation:

#include "myWidget.h"
 
TestWidget::TestWidget(QWidget * parent, const char * name, Qt::WFlags f):QWidget(parent, f)
{	
	bZoom = new QPushButton(this);
	bZoom->setText("Shrink");
	connect(bZoom, SIGNAL(clicked()), this, SLOT(slotShrink()));
}
 
void TestWidget::slotShrink()
{
	this->resize(this->width()-5, this->height()-5);
}
 
TestWidget::~TestWidget()
{
 
}

#include "myWidget.h"

TestWidget::TestWidget(QWidget * parent, const char * name, Qt::WFlags f):QWidget(parent, f)
{	
	bZoom = new QPushButton(this);
	bZoom->setText("Shrink");
	connect(bZoom, SIGNAL(clicked()), this, SLOT(slotShrink()));
}

void TestWidget::slotShrink()
{
	this->resize(this->width()-5, this->height()-5);
}

TestWidget::~TestWidget()
{

}

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Main:

#include <QApplication>
#include <QMainWindow>
#include <QScrollArea>
#include "myWidget.h"
 
int main(int argc, char *argv[])
{
  QApplication a(argc, argv);
 
  QMainWindow *mw = new QMainWindow();
  mw->resize(400,400);
 
  QScrollArea *sa = new QScrollArea( mw );
  sa->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
  sa->setBackgroundRole(QPalette::Dark);
 
  QWidget *qw = new TestWidget( sa );
  QObject::connect(qw, SIGNAL(clicked()), &a, SLOT(slotShrink()));
  qw->setPalette( QPalette( QColor(0,0,255) ) );
  qw->resize(200,200);
  sa->setWidget(qw);
 
  mw->setCentralWidget( sa );
  mw->show();
 
  return a.exec();
}

#include <QApplication>
#include <QMainWindow>
#include <QScrollArea>
#include "myWidget.h"

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

  QMainWindow *mw = new QMainWindow();
  mw->resize(400,400);

  QScrollArea *sa = new QScrollArea( mw );
  sa->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
  sa->setBackgroundRole(QPalette::Dark);

  QWidget *qw = new TestWidget( sa );
  QObject::connect(qw, SIGNAL(clicked()), &a, SLOT(slotShrink()));
  qw->setPalette( QPalette( QColor(0,0,255) ) );
  qw->resize(200,200);
  sa->setWidget(qw);

  mw->setCentralWidget( sa );
  mw->show();

  return a.exec();
}

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What is the problem, can anyone help me?

Thanks.

[jpn]

http://trolltech.com/developer/task-...ntry&id=136824

[whitefurrows]

Thank you for the assistance