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** This file is part of the examples of the Qt Toolkit.
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#include "ControlStrip.h"

#include <QtCore>
#include <QtWidgets>

ControlStrip::ControlStrip(QWidget *parent)
    : QWidget(parent)
{
    menuPixmap.load(":/images/edit-find.png");
    backPixmap.load(":/images/go-previous.png");
    forwardPixmap.load(":/images/go-next.png");
    closePixmap.load(":/images/button-close.png");
}

QSize ControlStrip::sizeHint() const
{
    return minimumSizeHint();
}

QSize ControlStrip::minimumSizeHint() const
{
    return QSize(320, 48);
}

void ControlStrip::mousePressEvent(QMouseEvent *event)
{
    int h = height();
    int spacing = qMin(h, (width() - h * 4) / 3);
    int x = event->pos().x();

    if (x < h) {
        emit menuClicked();
        event->accept();
        return;
    }

    if (x > width() - h) {
        emit closeClicked();
        event->accept();
        return;
    }

    if ((x < width() - (h + spacing)) && (x > width() - (h * 2 + spacing))) {
        emit forwardClicked();
        event->accept();
        return;
    }

    if ((x < width() - (h * 2 + spacing * 2)) && (x > width() - (h * 3 + spacing * 2))) {
        emit backClicked();
        event->accept();
        return;
    }
}

void ControlStrip::paintEvent(QPaintEvent *event)
{
    int h = height();
    int spacing = qMin(h, (width() - h * 4) / 3);
    int s = (height() - menuPixmap.height()) / 2;

    QPainter p(this);
    p.fillRect(event->rect(), QColor(32, 32, 32, 192));
    p.setCompositionMode(QPainter::CompositionMode_SourceOver);
    p.drawPixmap(s, s, menuPixmap);
    p.drawPixmap(width() - h + s, s, closePixmap);
    p.drawPixmap(width() - (h * 2 + spacing) + s, s, forwardPixmap);
    p.drawPixmap(width() - (h * 3 + spacing * 2) + s, s, backPixmap);

    p.end();
}