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twin-style-crystal/client/imageholder.cpp

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/***************************************************************************
* Copyright (C) 2006 by Sascha Hlusiak *
* Spam84@gmx.de *
* *
* This program 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. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <kapp.h>
#include <tqimage.h>
#include <kimageeffect.h>
#include <tqapplication.h>
#include <tqdesktopwidget.h>
#include "imageholder.h"
#include "crystalclient.h"
QImageHolder::QImageHolder(TQImage act,TQImage inact)
:img_active(NULL),img_inactive(NULL)
{
rootpixmap=NULL;
setUserdefinedPictures( act,inact);
initialized=userdefinedActive && userdefinedInactive;
emit repaintNeeded();
}
QImageHolder::~QImageHolder()
{
if (rootpixmap)delete rootpixmap;
if (img_active && !userdefinedActive)delete img_active;
if (img_inactive && !userdefinedInactive)delete img_inactive;
}
void QImageHolder::setUserdefinedPictures( TQImage act,TQImage inact)
{
int w=TQApplication::desktop()->width();
int h=TQApplication::desktop()->height();
if (img_active && !userdefinedActive)
{
delete img_active;
img_active=NULL;
}
if (img_inactive && !userdefinedInactive)
{
delete img_inactive;
img_inactive=NULL;
}
if (!act.isNull())
{
act=act.smoothScale(w,h);
img_active=ApplyEffect(act,&::factory->active,factory->options()->tqcolorGroup(KDecoration::ColorTitleBar, true));
}else img_active=NULL;
if (!inact.isNull())
{
inact=inact.smoothScale(w,h);
img_inactive=ApplyEffect(inact,&::factory->inactive,factory->options()->tqcolorGroup(KDecoration::ColorTitleBar, false));
}else img_inactive=NULL;
userdefinedActive=(img_active!=NULL);
userdefinedInactive=(img_inactive!=NULL);
CheckSanity();
}
void QImageHolder::Init()
{
if (initialized)return;
rootpixmap=new KMyRootPixmap(NULL/*,this*/);
rootpixmap->start();
rootpixmap->tqrepaint(true);
connect( rootpixmap,TQT_SIGNAL(backgroundUpdated(const TQImage*)),this, TQT_SLOT(BackgroundUpdated(const TQImage*)));
connect(kapp, TQT_SIGNAL(backgroundChanged(int)),TQT_SLOT(handleDesktopChanged(int)));
initialized=true;
}
void QImageHolder::tqrepaint(bool force)
{
Init();
if (rootpixmap)rootpixmap->tqrepaint(force);
}
void QImageHolder::handleDesktopChanged(int)
{
tqrepaint(true);
}
void QImageHolder::CheckSanity()
{
if (!initialized)return;
if (userdefinedActive && userdefinedInactive)return;
if (img_active!=NULL && !userdefinedActive)return;
if (img_inactive!=NULL && !userdefinedInactive)return;
if (rootpixmap)delete rootpixmap;
rootpixmap=NULL;
initialized=false;
}
TQPixmap* QImageHolder::ApplyEffect(TQImage &src,WND_CONFIG* cfg,TQColorGroup colorgroup)
{
TQImage dst;
switch(cfg->mode)
{
case 0: if (cfg->amount>0.99)return new TQPixmap();
dst=KImageEffect::fade(src, cfg->amount, colorgroup.background());
break;
case 1:dst=KImageEffect::channelIntensity(src,cfg->amount,KImageEffect::All);
break;
case 2:dst=KImageEffect::intensity(src,cfg->amount);
break;
case 3:dst=KImageEffect::desaturate(src,cfg->amount);
break;
case 4: dst=src;
KImageEffect::solarize(dst,cfg->amount*100.0);
break;
default:dst=src;
break;
}
if (cfg->blur>0)dst=KImageEffect::blur(dst,0,cfg->blur);
return new TQPixmap(dst);
}
void QImageHolder::BackgroundUpdated(const TQImage *src)
{
if (img_active && !userdefinedActive)
{
delete img_active;
img_active=NULL;
}
if (img_inactive && !userdefinedInactive)
{
delete img_inactive;
img_inactive=NULL;
}
if (src && !src->isNull())
{
TQImage tmp=src->copy();
if (!userdefinedInactive)
img_inactive=ApplyEffect(tmp,&::factory->inactive,factory->options()->tqcolorGroup(KDecoration::ColorTitleBar, false));
tmp=src->copy();
if (!userdefinedActive)
img_active=ApplyEffect(tmp,&::factory->active,factory->options()->tqcolorGroup(KDecoration::ColorTitleBar, true));
}
emit repaintNeeded();
}