Error creating a animated menu

[CassioTC]

Hi,

I'm trying create a animated menu, i'ts a simple animation, just show and hide the menu.

But I get a error and can't figure that out



Menu *menu = new Menu();

menu->setPos(0, scene->sceneRect().center().y() - (menu->boundingRect().center().y()*scaleT));

scene->addItem(menu);

setScene(scene);

j->setPos(350,0);
i->setPos(400,0);

QPushButton *button = new QPushButton;

//animaçao menu
QStateMachine machine;
QState *state_hide = new QState(&machine);
QState *state_show = new QState(&machine);
machine.setInitialState(state_show);

state_show->assignProperty(menu, "pos", QPointF(110,200));

state_hide->assignProperty(menu, "pos", QPointF(800,200));

QAbstractTransition *t1 = state_show->addTransition(button, SIGNAL(clicked()),state_hide);
QSequentialAnimationGroup *animation1SubGroup = new QSequentialAnimationGroup;
animation1SubGroup->addPause(250);

t1->addAnimation(animation1SubGroup);
t1->addAnimation(new QPropertyAnimation(menu, "pos"));

QAbstractTransition *t2 = state_hide->addTransition(button, SIGNAL(clicked()), state_show);
t2->addAnimation(new QPropertyAnimation(menu, "pos"));

machine.start();





class Menu: public QGraphicsRectItem
{
public:
Menu();

protected:
void paint( QPainter *, const QStyleOptionGraphicsItem *option, QWidget *widget );
void mousePressEvent(QGraphicsSceneMouseEvent *event);

private:
QImage *menu_image;
};




Menu::Menu()
{
visible = false;

menu_image = new QImage("C:/menu.png");
setRect(0, 0, menu_image->width(), menu_image->height());
setFlag(ItemIsMovable);
float itemScale = (float) QApplication::desktop()->width() / (float)1920;
this->setScale(itemScale);

Botao *button1 = new Botao(QImage("C:/botao.png"), QImage("C:/botao2.png"), "Iluminação Terreo");
button1->setParentItem(this);

button1->setPos(0,226);
}


Errors:



mainview.cpp:67: error: no matching function for call to 'QState::assignProperty(Menu*&, const char [4], QPointF)'
../src/corelib/statemachine/qstate.h:94: note: candidates are: void QState::assignProperty(QObject*, const char*, const QVariant&)
mainview.cpp:69: error: no matching function for call to 'QState::assignProperty(Menu*&, const char [4], QPointF)'
../src/corelib/statemachine/qstate.h:94: note: candidates are: void QState::assignProperty(QObject*, const char*, const QVariant&)
mainview.cpp:76: error: no matching function for call to 'QPropertyAnimation::QPropertyAnimation(Menu*&, const char [4])'
../src/corelib/animation/qpropertyanimation.h:79: note: candidates are: QPropertyAnimation::QPropertyAnimation(const QPropertyAnimation&)
../src/corelib/animation/qpropertyanimation.h:64: note: QPropertyAnimation::QPropertyAnimation(QObject*, const QByteArray&, QObject*)
../src/corelib/animation/qpropertyanimation.h:63: note: QPropertyAnimation::QPropertyAnimation(QObject*)
mainview.cpp:79: error: no matching function for call to 'QPropertyAnimation::QPropertyAnimation(Menu*&, const char [4])'
../src/corelib/animation/qpropertyanimation.h:79: note: candidates are: QPropertyAnimation::QPropertyAnimation(const QPropertyAnimation&)
../src/corelib/animation/qpropertyanimation.h:64: note: QPropertyAnimation::QPropertyAnimation(QObject*, const QByteArray&, QObject*)
../src/corelib/animation/qpropertyanimation.h:63: note: QPropertyAnimation::QPropertyAnimation(QObject*)

[wysota]

QGraphicsRectItem does not inherit QObject.

[CassioTC]

Thanks for answer.

I just add the QObject in the class:

class Menu: public QObject, public QGraphicsRectItem


Now compile with no errors, but doesn't work.
The menu stay in the same position.

[wysota]

Why would anything change position? Did you read the animation framework docs before trying to use it?