/**
 * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
 *
 * 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 2, or (at your option)
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301, USA.
**/
#include "fakedialog.h"
#include <QPushButton>
#include <QPainter>
#include <QKeyEvent>
#include <QDebug>

#define BORDER_WIDTH 24

FakeDialog::FakeDialog(QWidget *parent) : QWidget(parent)
{
    initUI();
}

void FakeDialog::setDialogSize(int w, int h)
{
    dialogWidth = w;
    dialogHeight = h;

    resizeEvent(nullptr);
}

QWidget* FakeDialog::centerWidget()
{
    return m_centerWidget;
}

QWidget* FakeDialog::dialog()
{
    return m_dialog;
}

void FakeDialog::initUI()
{
    setObjectName("fakeDialogBackground");
    setAttribute(Qt::WA_TranslucentBackground, true);
    setGeometry(parentWidget()->rect());

    m_dialog = new QWidget(this);
    m_dialog->setObjectName(QStringLiteral("fakeDialog"));

    m_centerWidget = new QWidget(m_dialog);
    m_centerWidget->setObjectName(QStringLiteral("dialogCenterWidget"));

    m_closeButton = new QPushButton(m_dialog);
    m_closeButton->setObjectName(QStringLiteral("closeButton"));
    connect(m_closeButton, &QPushButton::clicked, this, &FakeDialog::close);
}

void FakeDialog::paintEvent(QPaintEvent *e)
{
    QPainter painter(this);
    painter.setPen(Qt::transparent);
    painter.setBrush(QColor(0, 0, 0, 100));
    painter.drawRect(rect());

    QWidget::paintEvent(e);
}

void FakeDialog::resizeEvent(QResizeEvent */*event*/)
{
    m_dialog->setGeometry((width() - dialogWidth) / 2,
                          (height() - dialogHeight) / 2,
                          dialogWidth, dialogHeight);
    m_centerWidget->setGeometry(BORDER_WIDTH, BORDER_WIDTH,
                                m_dialog->width() - BORDER_WIDTH * 2,
                                m_dialog->height() - BORDER_WIDTH * 2);
    m_closeButton->setGeometry(m_dialog->width() - BORDER_WIDTH, 0,
                               BORDER_WIDTH, BORDER_WIDTH);
}

void FakeDialog::keyReleaseEvent(QKeyEvent *event)
{
    if(event->key() == Qt::Key_Escape)
    {
        close();
    }
}