/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the examples of the Qt Toolkit.

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#include "mainwindow.h"

#include "stationdialog.h"

#include <QtCore/QSettings>

#include <QtCore/QTimer>

#include <QtGui/QAction>

#include <QtGui/QApplication>

#include <QtGui/QBitmap>

#include <QtGui/QLinearGradient>

#include <QtGui/QMouseEvent>

#include <QtGui/QPainter>

MainWindow::MainWindow()

    : QWidget(0, Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint)

{

    QAction *quitAction = new QAction(tr("E&xit"), this);

    quitAction->setShortcuts(QKeySequence::Quit);

    connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));

    QAction *configAction = new QAction(tr("&Select station..."), this);

    configAction->setShortcut(tr("Ctrl+C"));

    connect(configAction, SIGNAL(triggered()), this, SLOT(configure()));

    addAction(configAction);

    addAction(quitAction);

    setContextMenuPolicy(Qt::ActionsContextMenu);

    setWindowTitle(tr("Traffic Info Oslo"));

    const QSettings settings("Qt Traffic Info", "trafficinfo");

    m_station = StationInformation(settings.value("stationId", "03012130").toString(),

                                   settings.value("stationName", "Nydalen [T-bane] (OSL)").toString());

    m_lines = settings.value("lines", QStringList()).toStringList();

    QTimer *timer = new QTimer(this);

    connect(timer, SIGNAL(timeout()), this, SLOT(updateTimeInformation()));

    timer->start(1000*60*5);

    QMetaObject::invokeMethod(this, SLOT(updateTimeInformation()), Qt::QueuedConnection);

}

MainWindow::~MainWindow()

{

    QSettings settings("Qt Traffic Info", "trafficinfo");

    settings.setValue("stationId", m_station.id());

    settings.setValue("stationName", m_station.name());

    settings.setValue("lines", m_lines);

}

QSize MainWindow::sizeHint() const

{

    return QSize(300, 200);

}

void MainWindow::mouseMoveEvent(QMouseEvent *event)

{

    if (event->buttons() & Qt::LeftButton) {

        move(event->globalPos() - m_dragPosition);

        event->accept();

    }

}

void MainWindow::mousePressEvent(QMouseEvent *event)

{

    if (event->button() == Qt::LeftButton) {

        m_dragPosition = event->globalPos() - frameGeometry().topLeft();

        event->accept();

    }

}

void MainWindow::paintEvent(QPaintEvent*)

{

    const QPoint start(width()/2, 0);

    const QPoint finalStop(width()/2, height());

    QLinearGradient gradient(start, finalStop);

    const QColor qtGreen(102, 176, 54);

    gradient.setColorAt(0, qtGreen.dark());

    gradient.setColorAt(0.5, qtGreen);

    gradient.setColorAt(1, qtGreen.dark());

    QPainter p(this);

    p.fillRect(0, 0, width(), height(), gradient);

    QFont headerFont("Sans Serif", 12, QFont::Bold);

    QFont normalFont("Sans Serif", 9, QFont::Normal);

    // draw it twice for shadow effect

    p.setFont(headerFont);

    QRect headerRect(1, 1, width(), 25);

    p.setPen(Qt::black);

    p.drawText(headerRect, Qt::AlignCenter, m_station.name());

    headerRect.moveTopLeft(QPoint(0, 0));

    p.setPen(Qt::white);

    p.drawText(headerRect, Qt::AlignCenter, m_station.name());

    p.setFont(normalFont);

    int pos = 40;

    for (int i = 0; i < m_times.count() && i < 9; ++i) {

        p.setPen(Qt::black);

        p.drawText(51, pos + 1, m_times.at(i).time());

        p.drawText(101, pos + 1, m_times.at(i).direction());

        p.setPen(Qt::white);

        p.drawText(50, pos, m_times.at(i).time());

        p.drawText(100, pos, m_times.at(i).direction());

        pos += 18;

    }

}

void MainWindow::resizeEvent(QResizeEvent*)

{

    QBitmap maskBitmap(width(), height());

    maskBitmap.clear();

    QPainter p(&maskBitmap);

    p.setBrush(Qt::black);

    p.drawRoundRect(0, 0, width(), height(), 20, 30);

    p.end();

    setMask(maskBitmap);

}

void MainWindow::updateTimeInformation()

{

    m_times = TimeQuery::query(m_station.id(), m_lines, QDateTime::currentDateTime());

    update();

}

void MainWindow::configure()

{

    StationDialog dlg(m_station.name(), m_lines, this);

    if (dlg.exec()) {

        m_station = dlg.selectedStation();

        m_lines = dlg.lineNumbers();

        updateTimeInformation();

    }

}