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amarok/amarok/src/engine/nmm/HostListItem.cpp

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/* NMM - Network-Integrated Multimedia Middleware
*
* Copyright (C) 2005-2006
* NMM work group,
* Computer Graphics Lab,
* Saarland University, Germany
* http://www.networkmultimedia.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include "HostListItem.h"
#include <tqbitmap.h>
#include <tqfont.h>
#include <tqheader.h>
#include <tqpainter.h>
#include <tqwhatsthis.h>
#include <kglobal.h>
#include <kiconloader.h>
#include <klocale.h>
#include <kpixmap.h>
#include <kpixmapeffect.h>
#include <kstandarddirs.h>
#include "debug.h"
#include "HostList.h"
#include "nmm_engine.h"
HostListItem::HostListItem( TQListView *parent, TQString hostname, bool audio, bool video, int volume, int status, bool read_only )
: KListViewItem( parent ),
m_audio( audio ),
m_video( video ),
m_volume( volume ),
m_status( status ),
m_read_only( read_only )
{
setText( HostListItem::Hostname, hostname);
setPixmap( HostListItem::Status, SmallIcon("info") );
setText( HostListItem::Status, i18n("Unknown") );
setPixmap( HostListItem::Playback, SmallIcon("info") );
setText( HostListItem::Playback, i18n("Unknown") );
if( 24 /*m_pixmapInset.height()*/ > height() )
this->setHeight( 24 /*m_pixmapInset.height()*/ );
}
HostListItem::~HostListItem()
{
}
int HostListItem::volumeAtPosition( int x )
{
if( x > 106 )
return 100;
else if ( x < 6 )
return -100;
else
return (x - 56) * 2;
}
void HostListItem::updateColumn( int column ) const
{
const TQRect r = listView()->itemRect( this );
if( !r.isValid() )
return;
listView()->viewport()->update( listView()->header()->sectionPos( column ) - listView()->contentsX() + 1,
r.y() + 1,
listView()->header()->sectionSize( column ) - 2, height() - 2 );
}
void HostListItem::statusToolTip()
{
TQWhatsThis::display( prettyStatus( m_status ) );
}
TQString HostListItem::prettyStatus( int error )
{
TQString st;
debug() << "### ERROR code : " << error << endl;
st = "<html><body>";
if(!error)
st += i18n("So far no status available for this host entry.<br/>Probably this means the host has not been used yet for playback.");
if( error & NmmEngine::ERROR_PLAYBACKNODE )
// TODO distinguish between ALSAPlaybackNode and PlaybackNode
st += i18n("An error appeared during audio playback initialization. Make sure the <b>PlaybackNode</b> is present on your system. If it is present, the command <b>serverregistry -s</b> in a console will list <b>PlaybackNode</b> as <b>available</b>.<br/>");
if( error & NmmEngine::ERROR_DISPLAYNODE )
st += i18n("An error appeared during video playback initialization. Make sure the <b>XDisplayNode</b> is present on your system. If it is present, the command <b>serverregistry -s</b> in a console will list <b>XDisplayNode</b> as <b>available</b>.<br/>");
if( error )
st += i18n("In general have a look at the <a href=\"http://www.networkmultimedia.org/Download/Binary/index.html#configure\">Configuration and tests</a> instructions.");
st += "</body></html>";
return st;
}
void HostListItem::paintCell(TQPainter * p, const TQColorGroup & cg, int column, int width, int align )
{
TQColorGroup m_cg( cg );
// TODO: reuse icons?
if( column == HostListItem::Video )
{
if( m_video ) { // video ?
if( m_read_only )
setPixmap( HostListItem::Video, SmallIcon("nmm_option_on_readonly") );
else
setPixmap( HostListItem::Video, SmallIcon("nmm_option_on") );
}
else
if( ! m_read_only)
setPixmap( HostListItem::Video, SmallIcon("nmm_option_off") );
}
else if( column == HostListItem::Audio )
{
if( m_audio ) {// audio ?
if( m_read_only )
setPixmap( HostListItem::Audio, SmallIcon("nmm_option_on_readonly") );
else
setPixmap( HostListItem::Audio, SmallIcon("nmm_option_on") );
}
else
if( ! m_read_only)
setPixmap( HostListItem::Audio, SmallIcon("nmm_option_off") );
}
else if( column == HostListItem::Status )
{
TQFont font( p->font() );
if( ! m_status ) // Unknown
{
font.setBold( false );
setText( HostListItem::Status , i18n("Unknown") );
}
else if( m_status == NmmEngine::STATUS_OK )
{
font.setBold( false );
m_cg.setColor( TQColorGroup::Text, TQt::darkGreen );
setText( HostListItem::Status , i18n("OK") );
}
else { // error
font.setBold( true );
m_cg.setColor( TQColorGroup::Text, TQt::red );
setText( HostListItem::Status , i18n("Failed") );
}
p->setFont( font );
}
else if( column == HostListItem::Volume )
{
TQPixmap buf( width, height() );
TQColor bg = listView()->viewport()->backgroundColor();
buf.fill( bg );
bitBlt( &buf, 0, 0, pixmapVolume( PixInset ) );
// Draw gradient
static int padding = 7;
static int vol; // pixelposition
if( this == ((HostList*)listView())->m_hoveredVolume )
{
vol = listView()->viewportToContents( listView()->viewport()->mapFromGlobal( TQCursor::pos() ) ).x();
vol -= listView()->header()->sectionPos( HostListItem::Volume );
}
else
vol = (m_volume / 2) + 56;
//std::cerr << "rel vol = " << vol << std::endl;
static int center = 56;
if( vol > center ) {
bitBlt( &buf, 0, 0, pixmapVolume( PixRight ), 0, 0, vol + 1 /* TODO: why + 1??? */ );
}
else if ( vol < center ) {
bitBlt( &buf, vol, 0, pixmapVolume( PixLeft ), vol, 0, 56 );
}
else
{}
// Calculate actual volume string from pixelposition
vol = volumeAtPosition( vol );
TQString vol_text;
if( vol > 0 )
vol_text = "+";
vol_text += TQString::number( vol );
vol_text += '%';
// Draw relative volume number
TQPainter p_number(&buf);
p_number.setPen( cg.buttonText() );
TQFont font;
font.setPixelSize( 9 );
p_number.setFont( font );
const TQRect rect( 40, 0, 34, 15 );
p_number.drawText( rect, TQt::AlignRight | TQt::AlignVCenter, vol_text );
p_number.end();
//bitBlt( p_number.device(), 0, 0, &buf );
p->drawPixmap( 0, 0, buf );
return;
}
KListViewItem::paintCell(p, m_cg, column, width, align);
}
TQPixmap* HostListItem::pixmapVolume( int type )
{
if( type == PixInset )
{
static TQPixmap m_pixmapInset( locate( "data", "amarok/images/nmm-volume-inset.png" ) );
return &m_pixmapInset;
}
else if( type == PixRight )
{
static TQPixmap m_pixmapGradientRight = generateGradient( PixRight );
return &m_pixmapGradientRight;
}
else if ( type == PixLeft )
{
static TQPixmap m_pixmapGradientLeft = generateGradient( PixLeft );
return &m_pixmapGradientLeft;
}
return 0;
}
TQPixmap HostListItem::generateGradient( int type )
{
TQPixmap temp;
if( type == PixRight )
temp = TQPixmap( locate( "data", "amarok/images/nmm-gradient-right.png" ) );
else // PixLeft
temp = TQPixmap( locate( "data", "amarok/images/nmm-gradient-left.png" ) );
const TQBitmap mask( temp.createHeuristicMask() );
KPixmap result = TQPixmap( 113, 24 );
if( type == PixRight)
KPixmapEffect::gradient( result, listView()->colorGroup().background(), listView()->colorGroup().highlight(), KPixmapEffect::HorizontalGradient );
else
KPixmapEffect::gradient( result, listView()->colorGroup().highlight(), listView()->colorGroup().background(), KPixmapEffect::HorizontalGradient );
result.setMask( mask);
return result;
}