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#include "widgetcover.h"
#include "common/unused.h"
#include <QVariantAnimation>
#include <QDebug>
#include <QGraphicsBlurEffect>
#include <QPushButton>
#include <QGridLayout>
#include <QEvent>
#include <QPushButton>
#include <QProgressBar>
WidgetCover::WidgetCover(QWidget *parent) :
QWidget(parent)
{
init();
}
WidgetCover::WidgetCover(const QEasingCurve& easingCurve, QWidget* parent)
: QWidget(parent), easingCurve(easingCurve)
{
init();
}
WidgetCover::~WidgetCover()
{
interruptAction();
}
void WidgetCover::init()
{
parentWidget()->installEventFilter(this);
setLayout(new QGridLayout(this));
layout()->setAlignment(Qt::AlignCenter);
container = new QWidget(this);
container->setVisible(false);
layout()->addWidget(container);
containerLayout = new QGridLayout(container);
containerLayout->setSizeConstraint(QLayout::SetFixedSize);
animation = new QVariantAnimation(this);
animation->setEasingCurve(easingCurve);
animation->setDuration(duration);
connect(animation, SIGNAL(valueChanged(QVariant)), this, SLOT(animationUpdate(QVariant)));
connect(animation, SIGNAL(finished()), this, SLOT(animationFinished()));
setAutoFillBackground(true);
resetBackground();
move(0, 0);
widgetResized();
hide();
}
void WidgetCover::interruptAction()
{
setVisible(false);
animation->stop();
}
void WidgetCover::resetBackground()
{
QPalette pal = palette();
pal.setBrush(QPalette::Window, QColor(0, 0, 0, 0));
setPalette(pal);
}
void WidgetCover::animationUpdate(const QVariant& value)
{
QPalette pal = palette();
pal.setBrush(QPalette::Window, value.value<QColor>());
setPalette(pal);
}
void WidgetCover::animationFinished()
{
switch (actionInProgres)
{
case Action::HIDING:
{
setVisible(false);
resetBackground();
break;
}
case Action::SHOWING:
{
container->setVisible(true);
break;
}
default:
break;
}
actionInProgres = Action::NONE;
}
void WidgetCover::widgetResized()
{
// qDebug() << parentWidget()->size();
setFixedSize(parentWidget()->size());
}
void WidgetCover::show()
{
if (actionInProgres == Action::SHOWING)
return;
if (actionInProgres == Action::HIDING)
animation->stop();
actionInProgres = Action::SHOWING;
if (cancelButton)
cancelButton->setEnabled(true);
QPalette pal = palette();
animation->setStartValue(QVariant(pal.brush(QPalette::Window).color()));
animation->setEndValue(QVariant(QColor(0, 0, 0, transparency)));
setVisible(true);
container->setVisible(true);
animation->start();
}
void WidgetCover::hide()
{
if (actionInProgres == Action::HIDING)
return;
if (actionInProgres == Action::SHOWING)
animation->stop();
actionInProgres = Action::HIDING;
container->setVisible(false);
QPalette pal = palette();
animation->setStartValue(QVariant(pal.brush(QPalette::Window).color()));
animation->setEndValue(QVariant(QColor(0, 0, 0, 0)));
animation->start();
}
QEasingCurve WidgetCover::getEasingCurve() const
{
return easingCurve;
}
void WidgetCover::setEasingCurve(const QEasingCurve& value)
{
easingCurve = value;
animation->setEasingCurve(easingCurve);
}
int WidgetCover::getDuration() const
{
return duration;
}
void WidgetCover::setDuration(int value)
{
duration = value;
animation->setDuration(duration);
}
int WidgetCover::getTransparency() const
{
return transparency;
}
void WidgetCover::setTransparency(int value)
{
if (value < 0)
value = 0;
if (value > 255)
value = 255;
transparency = value;
}
QGridLayout* WidgetCover::getContainerLayout()
{
return containerLayout;
}
bool WidgetCover::eventFilter(QObject* obj, QEvent* e)
{
UNUSED(obj);
if (e->type() == QEvent::Resize)
widgetResized();
return false;
}
void WidgetCover::initWithInterruptContainer(const QString& interruptButtonText)
{
cancelButton = new QPushButton();
cancelButton->setText(interruptButtonText.isNull() ? tr("Interrupt") : interruptButtonText);
busyBar = new QProgressBar();
busyBar->setRange(0, 0);
busyBar->setTextVisible(false);
containerLayout->addWidget(busyBar, 0, 0);
containerLayout->addWidget(cancelButton, 1, 0);
connect(cancelButton, &QPushButton::clicked, [=]() {cancelButton->setEnabled(false);});
connect(cancelButton, SIGNAL(clicked()), this, SIGNAL(cancelClicked()));
}
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