72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
#include <QDebug>
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#include <QMenu>
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#include <QPropertyAnimation>
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#include <QSignalTransition>
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#include "qtmaterialautocomplete_internal.h"
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#include <QtWidgets/QGraphicsOpacityEffect>
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/*!
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* \class QtMaterialAutoCompleteStateMachine
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* \internal
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*/
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/*!
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* \internal
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*/
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QtMaterialAutoCompleteStateMachine::QtMaterialAutoCompleteStateMachine(
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QWidget* menu)
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: QStateMachine(menu)
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, m_menu(menu)
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, m_closedState(new QState)
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, m_openState(new QState)
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, m_closingState(new QState)
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{
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Q_ASSERT(menu);
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addState(m_closedState);
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addState(m_openState);
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addState(m_closingState);
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setInitialState(m_closedState);
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QSignalTransition* transition;
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transition = new QSignalTransition(this, SIGNAL(shouldOpen()));
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transition->setTargetState(m_openState);
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m_closedState->addTransition(transition);
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transition = new QSignalTransition(this, SIGNAL(shouldClose()));
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transition->setTargetState(m_closedState);
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m_openState->addTransition(transition);
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transition = new QSignalTransition(this, SIGNAL(shouldFade()));
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transition->setTargetState(m_closingState);
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m_openState->addTransition(transition);
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m_closedState->assignProperty(menu, "visible", false);
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m_openState->assignProperty(menu, "visible", true);
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QGraphicsOpacityEffect* effect = new QGraphicsOpacityEffect;
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menu->setGraphicsEffect(effect);
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m_openState->assignProperty(effect, "opacity", 1);
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m_closingState->assignProperty(effect, "opacity", 0);
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m_closedState->assignProperty(effect, "opacity", 0);
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QPropertyAnimation* animation;
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animation = new QPropertyAnimation(effect, "opacity", this);
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animation->setDuration(240);
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addDefaultAnimation(animation);
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transition = new QSignalTransition(animation, SIGNAL(finished()));
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transition->setTargetState(m_closedState);
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m_closingState->addTransition(transition);
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}
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/*!
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* \internal
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*/
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QtMaterialAutoCompleteStateMachine::~QtMaterialAutoCompleteStateMachine() {}
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