kis_pressure_darken_option.cpp

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/* This file is part of the KDE project
 * SPDX-FileCopyrightText: 2008 Boudewijn Rempt <[email protected]>
 *
 * SPDX-License-Identifier: LGPL-2.0-or-later
 */
#include "kis_pressure_darken_option.h"
#include <klocalizedstring.h>
#include <kis_painter.h>
#include <KoColor.h>
#include <KoColorSpace.h>
#include "kis_color_source.h"
#include <kis_paint_device.h>
 
KisPressureDarkenOption::KisPressureDarkenOption()
    : KisCurveOption("Darken", KisPaintOpOption::COLOR, false)
{
}
 
 
KoColor KisPressureDarkenOption::apply(KisPainter * painter, const KisPaintInformation& info) const
{
    if (!isChecked()) {
        return painter->paintColor();
    }
 
    KoColor darkened = painter->paintColor();
    KoColor origColor = darkened;
 
    // Darken docs aren't really clear about what exactly the amount param can have as value...
    quint32 darkenAmount = (qint32)(255  - 255 * computeSizeLikeValue(info));
 
    KoColorTransformation* darkenTransformation  = darkened.colorSpace()->createDarkenAdjustment(darkenAmount, false, 0.0);
    if (!darkenTransformation) return origColor;
    darkenTransformation ->transform(painter->paintColor().data(), darkened.data(), 1);
    painter->setPaintColor(darkened);
    delete darkenTransformation;
 
    return origColor;
}
 
void KisPressureDarkenOption::apply(KisColorSource* colorSource, const KisPaintInformation& info) const
{
    if (!isChecked()) return;
 
    // Darken docs aren't really clear about what exactly the amount param can have as value...
    quint32 darkenAmount = (qint32)(255  - 255 * computeSizeLikeValue(info));
 
    KoColorTransformation* darkenTransformation  = colorSource->colorSpace()->createDarkenAdjustment(darkenAmount, false, 0.0);
    if (!darkenTransformation) return;
    colorSource->applyColorTransformation(darkenTransformation);
 
    delete darkenTransformation;
}