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

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

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** contained in the Technology Preview License Agreement accompanying

** this package.

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

#include "TitleBar.h"

#include <QtCore>

#include <QtGui>

TitleBar::TitleBar(QWidget *parent)

    : QWidget(parent)

    , m_progress(0)

{

    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);

}

void TitleBar::setHost(const QString &host)

{

    m_host = host;

    update();

}

void TitleBar::setTitle(const QString &title)

{

    m_title = title;

    update();

}

void TitleBar::setProgress(int percent)

{

    m_progress = percent;

    update();

}

QSize TitleBar::sizeHint() const

{

    return minimumSizeHint();

}

QSize TitleBar::minimumSizeHint() const

{

    QFontMetrics fm = fontMetrics();

    return QSize(100, fm.height());

}

void TitleBar::paintEvent(QPaintEvent *event)

{

    QString title = m_host;

    if (!m_title.isEmpty())

        title.append(": ").append(m_title);

    QPalette pal = palette();

    QPainter p(this);

    p.fillRect(event->rect(), pal.color(QPalette::Highlight));

    if (m_progress > 0) {

        QRect box = rect();

        box.setLeft(16);

        box.setWidth(width() - box.left() - 110);

        p.setPen(pal.color(QPalette::HighlightedText));

        p.setOpacity(0.8);

        p.drawText(box, Qt::AlignLeft + Qt::AlignVCenter, title);

        int x = width() - 100 - 5;

        int y = 1;

        int h = height() - 4;

        p.setOpacity(1.0);

        p.setBrush(Qt::NoBrush);

        p.setPen(pal.color(QPalette::HighlightedText));

        p.drawRect(x, y, 100, h);

        p.setPen(Qt::NoPen);

        p.setBrush(pal.color(QPalette::HighlightedText));

        p.drawRect(x, y, m_progress, h);

    } else {

        QRect box = rect();

        box.setLeft(16);

        box.setWidth(width() - box.left() - 5);

        p.setPen(pal.color(QPalette::HighlightedText));

        p.drawText(box, Qt::AlignLeft + Qt::AlignVCenter, title);

    }

    p.end();

}