DownloadProgressBar.cpp

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/*

Copyright (C) 2005-2007 by Peter Dimov.

This file is part of Calitko (http://www.calitko.org).

Calitko 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 of the License, or
(at your option) any later version.

Calitko 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 Calitko; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

*/

#include "Qt.h"
#include "DownloadProgressBar.h"

using UIs::DownloadProgressBar;

DownloadProgressBar::DownloadProgressBar ()
 :  fileSize (0), requestedRanges (new QList<Range>),
    downloadedRanges (new QList<Range>), verifiedRanges (new QList<Range>)
{
}

void DownloadProgressBar::setFileSize (int size)
{
    fileSize = size;
}

void DownloadProgressBar::addRequestedRange (int start, int end)
{
    Range newRequestedRange (start, end);
    requestedRanges->append (newRequestedRange);
}

void DownloadProgressBar::addDownloadedRange (int start, int end)
{
    Range newDownloadedRange (start, end);
    downloadedRanges->append (newDownloadedRange);
}

void DownloadProgressBar::addVerifiedRange (int start, int end)
{
    Range newVerifiedRange (start, end);
    verifiedRanges->append (newVerifiedRange);
}

void DownloadProgressBar::removeRequestedRange (int, int)
{

}

void DownloadProgressBar::removeDownloadedRange (int, int)
{

}

void DownloadProgressBar::removeVerifiedRange (int, int)
{

}

void DownloadProgressBar::paint (QPainter *painter, const QRect *rect, const QStyleOptionViewItem & option)
{
//  QBrush brush_(QColor(100,100,100,100));
//  painter->fillRect (rect->adjusted (2, 2, -2, -2), brush_);

    int height = rect->height();
    QBrush brush = painter->brush();
    brush.setStyle (Qt::SolidPattern);

    if (option.state & QStyle::State_Selected) {
        QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
                                  ? QPalette::Normal : QPalette::Disabled;
        painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight));
        painter->fillRect(option.rect.adjusted (2, 2, -2, -2) , QBrush (QColor (255,255,255)));
    }

    brush.setColor (QColor (0,0,0));
    QPoint p1 = rect->topLeft() + QPoint (1, 1);
    QPoint p2 = rect->topRight() + QPoint (-1, 1);
    QPoint p4 = rect->bottomLeft() + QPoint (1, -1);
    QPoint p3 = rect->bottomRight() + QPoint (-1, -1);

    painter->drawLine (p1, p2);
    painter->drawLine (p2, p3);
    painter->drawLine (p3, p4);
    painter->drawLine (p4, p1);

//  brush.setColor (QColor (216, 226, 3));
    brush.setColor (QColor (218, 117, 0));
    painter->setBrush (brush);
    paintRanges (painter, rect->adjusted (2, 2, -2, -(3*height/4 )), requestedRanges);

//  brush.setColor (QColor (0, 28, 200));
    brush.setColor (QColor (47, 53, 81));
    painter->setBrush (brush);
//  paintRanges (painter, rect->adjusted (0, height/6+2, 0, -(height/4 + 2)), downloadedRanges);
    paintRanges (painter, rect->adjusted (2, 2, -2, -2), downloadedRanges);

    brush.setColor (QColor (37, 223, 5));
    painter->setBrush (brush);
    paintRanges (painter, rect->adjusted (2, 3*height/4,-2, -2), verifiedRanges);

}

void DownloadProgressBar::paintRanges (QPainter *painter, const QRect &rect, QList<Range> *ranges)
{
    int width = rect.width();
    Range range(0,0);
    int start, end;

    for (int i=0; i<ranges->count(); i++){
        range = ranges->at(i);
        start = range.start()*width/fileSize;
        end   = range.end()*width/fileSize;

        QRect fillRect (rect.left() + start, rect.top(), end-start, rect.height());
        painter->fillRect (fillRect, painter->brush());
    }
}

Copyright © 2006 Peter Dimov.
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