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/* ====================================================================
* Copyright (c) 2007-2008 Martin Hauner
* http://subcommander.tigris.org
*
* Subcommander is licensed as described in the file doc/COPYING, which
* you should have received as part of this distribution.
* ====================================================================
*/
// sc
#include "IconFactory.h"
#include "sublib/Utility.h"
// qt
#include <QtGui/QPixmap>
#include <QtGui/QImage>
#include <QtGui/QPainter>
/**
* Create the "normal" @c QImage for the given @a iconImage. Just returns
* the image as we get it from disk.
*/
static QPixmap loadPixmap( const QString& iconImage )
{
return QPixmap( getIconDir() + iconImage );
}
/**
* Create the "active" @c Pixmap for the given @a iconImage. The "active"
* pixmap is created by making every pixel darker.
*/
static QPixmap createActive( const QPixmap& iconImage )
{
QImage srcImage = iconImage.toImage();
QSize size = srcImage.size();
for( int y = 0; y < size.height(); y++ )
{
for( int x = 0; x < size.width(); x++ )
{
QRgb value = srcImage.pixel(x,y);
int alpha = qAlpha(value);
if( !value && !alpha )
continue;
QColor c(value);
c = c.dark(120);
// darkening the color looses the alpha information so we have
// to create the new rgb value by hand.
QRgb newvalue = qRgba(c.red(),c.green(),c.blue(),alpha);
srcImage.setPixel(x,y,newvalue);
}
}
return QPixmap::fromImage(srcImage);
}
/**
* Create the "disabled" @c Pixmap for the given @a iconImage. The "disabled"
* pixmap is created by reducing the alpha value of each pixel to increase its
* transparency.
*/
static QPixmap createDisabled( const QPixmap& iconImage )
{
QImage srcImage = iconImage.toImage();
QImage srcImage32 = srcImage.convertToFormat(QImage::Format_ARGB32);
QSize size = srcImage32.size();
for( int y = 0; y < size.height(); y++ )
{
for( int x = 0; x < size.width(); x++ )
{
QRgb value = srcImage32.pixel(x,y);
int alpha = qAlpha(value);
if( !value && !alpha )
continue;
QColor c(value);
// => more or less greyscale
int h, s, v;
c.getHsv(&h,&s,&v);
c.setHsv(h,15,v);
// increase transparency
double newalpha = alpha * 0.65;
QRgb newvalue = qRgba(c.red(),c.green(),c.blue(),(int)newalpha);
srcImage32.setPixel(x,y,newvalue);
}
}
return QPixmap::fromImage(srcImage32);
}
/**
* Create an @c Icon from the given @a iconImage. If an @a overlayImage is
* given it is placed in the bottom right corner of the @a iconImage.
*/
static QIcon createIcon( const QString& iconImage, const QString& overlayImage = QString() )
{
QPixmap source = loadPixmap(iconImage);
if( !overlayImage.isNull() )
{
QPixmap overlay = loadPixmap(overlayImage);
QPainter painter(&source);
painter.drawPixmap( 16, 16, overlay );
}
QIcon icon;
icon.addPixmap( source, QIcon::Normal );
icon.addPixmap( createActive(source), QIcon::Active );
icon.addPixmap( createDisabled(source), QIcon::Disabled );
return icon;
}
/*
* Create an toggle @c Icon from the given @a iconImage. If an @a overlayImage
* is given, it is placed in the bottom right corner of the @a iconImage as an
* "On" marker.
*/
static QIcon createToggleIcon( const QString& iconImage, const QString& overlayImage )
{
QPixmap sourceOff = loadPixmap(iconImage);
QPixmap sourceOn = sourceOff.copy();
QPixmap overlay = loadPixmap(overlayImage);
QPainter painter(&sourceOn);
painter.drawPixmap( 0, 0, overlay );
QIcon icon;
icon.addPixmap( sourceOff, QIcon::Normal, QIcon::Off );
icon.addPixmap( sourceOn, QIcon::Normal, QIcon::On );
icon.addPixmap( createActive(sourceOff), QIcon::Active, QIcon::Off );
icon.addPixmap( createActive(sourceOn), QIcon::Active, QIcon::On );
icon.addPixmap( createDisabled(sourceOff), QIcon::Disabled );
return icon;
}
QIcon IconFactory::createIcon( const QString& iconImage, const QString& overlayImage )
{
return ::createIcon( iconImage, overlayImage );
}
QIcon IconFactory::createToggleIcon( const QString& iconImage, const QString& overlayImage )
{
return ::createToggleIcon( iconImage, overlayImage );
}
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