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tdenetwork/kpf/src/BandwidthGraph.cpp

336 lines
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/*
KPF - Public fileserver for KDE
Copyright 2001 Rik Hemsley (rikkus) <rik@kde.org>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <tqdrawutil.h>
#include <tqpainter.h>
#include <tqtooltip.h>
#include <klocale.h>
#include <kiconloader.h>
#include <kiconeffect.h>
#include "Defines.h"
#include "Utils.h"
#include "BandwidthGraph.h"
#include "WebServer.h"
namespace KPF
{
BandwidthGraph::BandwidthGraph
(
WebServer * server,
OverlaySelect overlaySelect,
TQWidget * parent,
const char * name
)
: TQWidget (parent, name, WRepaintNoErase),
server_ (server),
max_ (0L),
overlaySelect_ (overlaySelect)
{
setBackgroundOrigin(AncestorOrigin);
history_.resize(width());
history_.fill(0L);
connect
(
server_,
TQT_SIGNAL(wholeServerOutput(ulong)),
TQT_SLOT(slotOutput(ulong))
);
if (UseOverlays == overlaySelect_)
{
connect
(
server_,
TQT_SIGNAL(contentionChange(bool)), this,
TQT_SLOT(slotServerContentionChange(bool))
);
connect
(
server_,
TQT_SIGNAL(pauseChange(bool)), this,
TQT_SLOT(slotServerPauseChange(bool))
);
}
setTooltip();
}
BandwidthGraph::~BandwidthGraph()
{
// Empty.
}
void
BandwidthGraph::setTooltip()
{
TQToolTip::add(this, i18n( "%1 on port %2" )
.arg( server_->root() ).arg( server_->listenPort() ) );
}
TQRect
BandwidthGraph::contentsRect() const
{
return TQRect(1, 1, width() - 2, height() - 2);
}
void
BandwidthGraph::updateContents()
{
TQRect r(contentsRect());
uint w = r.width();
uint h = r.height();
buffer_.fill(this, 0, 0);
TQPainter p(&buffer_);
p.drawPixmap( ( width()-bgPix_.width() )/2,
( height()-bgPix_.height() )/2, bgPix_ );
p.setPen(colorGroup().dark());
for (uint i = 0; i < history_.size(); i++)
{
ulong l = history_[i];
if (0 != l)
{
uint barLength =
static_cast<uint>(l / float(max_) * h);
p.drawLine(i + 1, h, i + 1, h - barLength);
}
}
drawOverlays(p);
update();
}
void
BandwidthGraph::paintEvent(TQPaintEvent * e)
{
bitBlt(this, e->rect().topLeft(), &buffer_, e->rect());
}
void
BandwidthGraph::resizeEvent(TQResizeEvent *)
{
buffer_.resize(size());
if ( width() > 48 )
bgPix_ = KGlobal::iconLoader()->loadIcon( "kpf", KIcon::Panel, 48 );
else if ( width() > 32 )
bgPix_ = KGlobal::iconLoader()->loadIcon( "kpf", KIcon::Panel, 32 );
else if ( width() > 16 )
bgPix_ = KGlobal::iconLoader()->loadIcon( "kpf", KIcon::Panel, 16 );
else
bgPix_.fill( this, TQPoint( 0, 0 ) );
KIconEffect::semiTransparent( bgPix_ );
if (width() < 2)
{
// We have 0 space. Make history 0 size.
history_ = TQMemArray<ulong>();
return;
}
uint w = width() - 2;
if (w < history_.size())
{
TQMemArray<ulong> newHistory(w);
uint sizeDiff = history_.size() - w;
for (uint i = sizeDiff; i < history_.size(); i++)
newHistory[i - sizeDiff] = history_[i];
history_ = newHistory;
}
else if (w > history_.size())
{
TQMemArray<ulong> newHistory(w);
uint sizeDiff = w - history_.size();
for (uint i = 0; i < sizeDiff; i++)
{
newHistory[i] = 0L;
}
for (uint i = 0; i < history_.size(); i++)
newHistory[sizeDiff + i] = history_[i];
history_ = newHistory;
}
updateContents();
}
void
BandwidthGraph::slotOutput(ulong l)
{
TQRect r(contentsRect());
uint w = r.width();
uint h = r.height();
if (0 == w || 0 == h)
return;
ulong oldMax = max_;
max_ = 0L;
if (history_.size() != w)
return;
for (uint i = 1; i < w; i++)
{
history_[i - 1] = history_[i];
max_ = max(history_[i], max_);
}
history_[w - 1] = l;
max_ = max(l, max_);
if (max_ != oldMax)
emit(maximumChanged(max_));
updateContents();
}
void
BandwidthGraph::drawOverlays(TQPainter & p)
{
if (NoOverlays == overlaySelect_)
return;
if (!overlayPixmap_.isNull())
{
p.drawPixmap(3, 3, overlayPixmap_);
}
if (width() < 32 || height() < 32)
return;
if (overlayPixmap_.isNull())
{
TQString maxString;
TQString bs(i18n("%1 b/s"));
TQString kbs(i18n("%1 kb/s"));
TQString mbs(i18n("%1 Mb/s"));
if (max_ > 1024)
if (max_ > 1024 * 1024)
maxString = mbs.arg(max_ / (1024 * 1024));
else
maxString = kbs.arg(max_ / 1024);
else if ( max_ > 0 )
maxString = bs.arg(max_);
else
maxString = i18n( "Idle" );
p.setPen(TQt::white);
p.drawText
(
4,
4 + fontMetrics().ascent(),
maxString
);
p.setPen(TQt::black);
p.drawText
(
3,
3 + fontMetrics().ascent(),
maxString
);
}
}
TQSize
BandwidthGraph::sizeHint() const
{
return TQSize(32, 32);
}
TQSize
BandwidthGraph::minimumSizeHint() const
{
return TQSize(12, 12);
}
WebServer *
BandwidthGraph::server()
{
return server_;
}
void
BandwidthGraph::slotServerContentionChange(bool)
{
updateOverlayPixmap();
}
void
BandwidthGraph::slotServerPauseChange(bool)
{
updateOverlayPixmap();
}
void
BandwidthGraph::updateOverlayPixmap()
{
if (server_->paused())
{
overlayPixmap_ = SmallIcon("player_pause");
}
else
{
if (server_->portContention())
{
overlayPixmap_ = SmallIcon("connect_creating");
}
else
{
overlayPixmap_ = TQPixmap();
}
}
}
} // End namespace KPF
#include "BandwidthGraph.moc"
// vim:ts=2:sw=2:tw=78:et