83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/* Plastik KWin window decoration
|
|
Copyright (C) 2003 Sandro Giessl <ceebx@users.sourceforge.net>
|
|
|
|
based on the window decoration "Web":
|
|
Copyright (C) 2001 Rik Hemsley (rikkus) <rik@kde.org>
|
|
|
|
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; see the file COPYING. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <kpixmapeffect.h>
|
|
|
|
#include <QColor>
|
|
#include <QImage>
|
|
#include <QPainter>
|
|
|
|
#include "misc.h"
|
|
|
|
QColor hsvRelative(const QColor& baseColor, int relativeH, int relativeS, int relativeV)
|
|
{
|
|
int h, s, v;
|
|
baseColor.getHsv(&h, &s, &v);
|
|
|
|
h += relativeH;
|
|
s += relativeS;
|
|
v += relativeV;
|
|
|
|
if(h < 0) { h = 0; }
|
|
else if(h > 359) { h = 359; }
|
|
if(s < 0) { s = 0; }
|
|
else if(s > 255) { s = 255; }
|
|
if(v < 0) { v = 0; }
|
|
else if(v > 255) { v = 255; }
|
|
|
|
QColor c;
|
|
c.setHsv( h, s, v );
|
|
return c;
|
|
}
|
|
|
|
QColor alphaBlendColors(const QColor &bgColor, const QColor &fgColor, const int a)
|
|
{
|
|
|
|
// normal button...
|
|
QRgb rgb = bgColor.rgb();
|
|
QRgb rgb_b = fgColor.rgb();
|
|
int alpha = a;
|
|
if(alpha>255) alpha = 255;
|
|
if(alpha<0) alpha = 0;
|
|
int inv_alpha = 255 - alpha;
|
|
|
|
QColor result = QColor( qRgb(qRed(rgb_b)*inv_alpha/255 + qRed(rgb)*alpha/255,
|
|
qGreen(rgb_b)*inv_alpha/255 + qGreen(rgb)*alpha/255,
|
|
qBlue(rgb_b)*inv_alpha/255 + qBlue(rgb)*alpha/255) );
|
|
|
|
return result;
|
|
}
|
|
|
|
QImage recolorImage(QImage *img, QColor color) {
|
|
QImage destImg(img->width(),img->height(), QImage::Format_ARGB32);
|
|
for (int x = 0; x < img->width(); x++) {
|
|
for (int y = 0; y < img->height(); y++) {
|
|
if(img->pixel(x,y) == qRgb(0,0,255) ) {
|
|
destImg.setPixel(x,y,color.rgb() ); // set to the new color
|
|
} else {
|
|
destImg.setPixel(x,y,qRgba(0,0,0,0) ); // set transparent...
|
|
}
|
|
}
|
|
}
|
|
|
|
return destImg;
|
|
}
|