forked from osmocom/wireshark
105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
/* color_utils.cpp
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* 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 "color_utils.h"
|
|
|
|
|
|
/*
|
|
* Initialize a color with R, G, and B values, including any toolkit-dependent
|
|
* work that needs to be done.
|
|
*/
|
|
gboolean
|
|
initialize_color(color_t *color, guint16 red, guint16 green, guint16 blue)
|
|
{
|
|
QColor qc;
|
|
|
|
// color_t uses 16-bit components to match Gtk+. Qt use 8.
|
|
qc.setRgb(red>>8, green>>8, blue>>8);
|
|
if (!qc.isValid())
|
|
return FALSE;
|
|
|
|
// Match what color_filters.c does.
|
|
color->red = red;
|
|
color->green = green;
|
|
color->blue = blue;
|
|
color->pixel = 0;
|
|
return TRUE;
|
|
}
|
|
|
|
ColorUtils::ColorUtils(QObject *parent) :
|
|
QObject(parent)
|
|
{
|
|
}
|
|
|
|
QColor ColorUtils::fromColorT (color_t *color) {
|
|
if (!color) return QColor();
|
|
return QColor(color->red >> 8, color->green >> 8, color->blue >> 8);
|
|
}
|
|
|
|
QColor ColorUtils::fromColorT(color_t color)
|
|
{
|
|
return fromColorT(&color);
|
|
}
|
|
|
|
const color_t ColorUtils::toColorT(const QColor color)
|
|
{
|
|
color_t colort;
|
|
colort.red = (color.red() << 8) | color.red();
|
|
colort.green = (color.green() << 8) | color.green();
|
|
colort.blue = (color.blue() << 8) | color.blue();
|
|
|
|
return colort;
|
|
}
|
|
|
|
QRgb ColorUtils::alphaBlend(const QColor &color1, const QColor &color2, qreal alpha)
|
|
{
|
|
alpha = qBound(0.0, alpha, 1.0);
|
|
|
|
int r1 = color1.red() * alpha;
|
|
int g1 = color1.green() * alpha;
|
|
int b1 = color1.blue() * alpha;
|
|
int r2 = color2.red() * (1 - alpha);
|
|
int g2 = color2.green() * (1 - alpha);
|
|
int b2 = color2.blue() * (1 - alpha);
|
|
|
|
QColor alpha_color(r1 + r2, g1 + g2, b1 + b2);
|
|
return alpha_color.rgb();
|
|
}
|
|
|
|
QRgb ColorUtils::alphaBlend(const QBrush &brush1, const QBrush &brush2, qreal alpha)
|
|
{
|
|
return alphaBlend(brush1.color(), brush2.color(), alpha);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|