/*

* Copyright (C) 2020 PandaOS Team.

*

* Author: rekols <rekols@foxmail.com>

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

*/

#include "blurwindow.h"

// #include <KWindowEffects>

#include <QHBoxLayout>

#include <QApplication>

#include <QPainterPath>

#include <QPainter>

#include <QDebug>

#include <QTimer>

#include <QLabel>

#include <QEvent>

BlurWindow::BlurWindow(QWidget *parent) : QWidget(parent), m_textLabel(new QLabel)

{

QHBoxLayout *layout = new QHBoxLayout;

layout->addWidget(m_textLabel);

setLayout(layout);

installEventFilter(this);

setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | Qt::WindowDoesNotAcceptFocus

| Qt::ToolTip);

setAttribute(Qt::WA_TranslucentBackground);

setVisible(false);

}

void BlurWindow::setText(const QString &text)

{

m_textLabel->setText(text);

}

void BlurWindow::update()

{

QWidget::update();

}

void BlurWindow::paintEvent(QPaintEvent *e)

{

QWidget::paintEvent(e);

QPainter painter(this);

painter.setRenderHint(QPainter::Antialiasing, true);

const QPalette &palette = qApp->palette();

QColor backgroundColor = palette.color(QPalette::Window);

backgroundColor.setAlpha(100);

painter.setPen(Qt::NoPen);

painter.setBrush(backgroundColor);

const qreal radius = 7.0; // std::min(rect().height(), rect().width()) / 2 - 2;

painter.drawRoundedRect(rect(), radius, radius);

}

void BlurWindow::showEvent(QShowEvent *e)

{

QWidget::showEvent(e);

}

void BlurWindow::hideEvent(QHideEvent *e)

{

QWidget::hideEvent(e);

// KWindowEffects::enableBlurBehind(winId(), false);

}

bool BlurWindow::eventFilter(QObject *obj, QEvent *e)

{

Q_UNUSED(obj);

switch (e->type()) {

case QEvent::UpdateRequest:

case QEvent::LayoutRequest:

updateBlurRegion();

break;

default:

break;

}

return false;

}

void BlurWindow::updateBlurRegion()

{

const qreal radius = 5.0; // std::min(rect().height(), rect().width()) / 2 - 2;

QPainterPath path;

path.addRoundedRect(this->rect(), radius, radius);

QPolygon polygon = path.toFillPolygon().toPolygon();

// QWidget::setMask(polygon);

// KWindowEffects::enableBlurBehind(winId(), true, polygon);

}