Russian Qt Forum

#include <QtCore/QDebug>
#include <QtCore/QPropertyAnimation>
#include <QtCore/QSignalTransition>
#include <QtCore/QStateMachine>
#include <QtGui/QApplication>
#include <QtGui/QLayout>
#include <QtGui/QPushButton>

int main( int argc, char** argv )
{
	QApplication app( argc, argv );

	QWidget view;

	QPushButton* button = new QPushButton( &view );

	QHBoxLayout* layout = new QHBoxLayout;
	layout->addWidget( button );

	view.setLayout( layout );

	app.setActiveWindow( &view );
	view.show();

	QStateMachine* stateMachine = new QStateMachine();

	QState* hideState = new QState();
	hideState->assignProperty( button, "text", "Show" );

	QState* showState = new QState();
	showState->assignProperty( button, "text", "Hide" );

	QPropertyAnimation* showAnimation = new QPropertyAnimation( &view, "size" );
	showAnimation->setDuration( 10000 );
	showAnimation->setStartValue( QSize( 200, 30 ) );
	showAnimation->setEndValue( QSize( 400, 30 ) );

	QSignalTransition* showTransition = new QSignalTransition();
	showTransition->addAnimation( showAnimation );

	hideState->addTransition( showTransition );
	hideState->addTransition( button, SIGNAL( clicked() ), showState );

	showState->addTransition( button, SIGNAL( clicked() ), hideState );

	stateMachine->addState( hideState );
	stateMachine->addState( showState );

	stateMachine->setInitialState( hideState );
	stateMachine->start();
	return app.exec();
}

#include <QtCore/QDebug>
#include <QtCore/QPropertyAnimation>
#include <QtCore/QSignalTransition>
#include <QtCore/QStateMachine>
#include <QtGui/QApplication>
#include <QtGui/QLayout>
#include <QtGui/QPushButton>

int main( int argc, char** argv )
{
  QApplication app( argc, argv );

  QWidget view;

  QPushButton* button = new QPushButton( &view );

  QHBoxLayout* layout = new QHBoxLayout;
  layout->addWidget( button );

  view.setLayout( layout );

  app.setActiveWindow( &view );
  view.show();

  QStateMachine* stateMachine = new QStateMachine();

  QState* hideState = new QState();
  hideState->assignProperty( button, "text", "Show" );
  hideState->assignProperty( &view, "size", QSize (200, 30));

  QState* showState = new QState();
  showState->assignProperty( button, "text", "Hide" );
  showState->assignProperty(&view, "size", QSize (400, 30));

  QPropertyAnimation* showAnimation = new QPropertyAnimation(&view, "size" );
  showAnimation->setDuration( 1000 );

  QSignalTransition* hideTransition = hideState->addTransition( button, SIGNAL( clicked() ), showState );
  hideTransition->addAnimation ( showAnimation );
  QSignalTransition* showTransition = showState->addTransition( button, SIGNAL( clicked() ), hideState );
  showTransition->addAnimation ( showAnimation );

  stateMachine->addState( hideState );
  stateMachine->addState( showState );

  stateMachine->setInitialState( hideState );
  stateMachine->start();
  return app.exec();
}