87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
/** -*- mode: c++ ; c-basic-offset: 2 -*-
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*
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* @file IconLoader.cpp
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*
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* Copyright 2017 Sebastien Fourey
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*
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* This file is part of G'MIC-Qt, a generic plug-in for raster graphics
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* editors, offering hundreds of filters thanks to the underlying G'MIC
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* image processing framework.
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*
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* gmic_qt is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* gmic_qt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with gmic_qt. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "IconLoader.h"
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#include <QString>
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namespace GmicQt
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{
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QIcon IconLoader::getForDarkTheme(const char * name)
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{
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QPixmap pixmap(darkIconPath(name));
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QIcon icon(pixmap);
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icon.addPixmap(darkerPixmap(pixmap), QIcon::Disabled, QIcon::Off);
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return icon;
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}
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QIcon IconLoader::load(const char * name)
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{
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if (Settings::darkThemeEnabled()) {
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return getForDarkTheme(name);
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} else {
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return QIcon(QString(":/icons/%1.png").arg(name));
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}
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}
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QIcon IconLoader::loadNoDarkened(const char * name)
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{
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if (Settings::darkThemeEnabled()) {
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return QIcon(darkIconPath(name));
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} else {
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return QIcon(QString(":/icons/%1.png").arg(name));
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}
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}
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QPixmap IconLoader::darkerPixmap(const QPixmap & pixmap)
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{
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QImage image = pixmap.toImage().convertToFormat(QImage::Format_ARGB32);
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for (int row = 0; row < image.height(); ++row) {
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auto pixel = reinterpret_cast<QRgb *>(image.scanLine(row));
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const QRgb * limit = pixel + image.width();
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while (pixel != limit) {
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QRgb grayed;
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if (qAlpha(*pixel) != 0) {
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grayed = qRgba((int)(0.4 * qRed(*pixel)), (int)(0.4 * qGreen(*pixel)), (int)(0.4 * qBlue(*pixel)), (int)(0.4 * qAlpha((*pixel))));
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} else {
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grayed = qRgba(0, 0, 0, 0);
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}
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*pixel++ = grayed;
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}
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}
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return QPixmap::fromImage(image);
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}
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QString IconLoader::darkIconPath(const char * name)
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{
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QString darkPath = QString(":/icons/dark/%1.png").arg(name);
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if (QFileInfo(darkPath).exists()) {
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return darkPath;
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}
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return QString(":/icons/%1.png").arg(name); // Fallback
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}
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} // namespace GmicQt
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