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/*
* Copyright (C) 2023, KylinSoft Co., Ltd.
*
* 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 3, 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, see <http://www.gnu.org/licenses/>.
*
**/
#include "iconbutton.h"
#include <QApplication>
#include <QSvgRenderer>
#include <QPainter>
IconButton::IconButton(QString iconFileName, QIcon icon, QWidget *parent):
QPushButton(parent)
{
this->iconName = iconFileName;
this->icon = icon;
QString iconBtnQss = QString("QPushButton:checked{border: none;}"
"QPushButton:!checked{border: none;}");
this->setStyleSheet(iconBtnQss);
}
IconButton::~IconButton()
{
}
void IconButton::reLoadIcon()
{
if (icon.isNull()) {
QString path = QString("://img/secondaryleftmenu/%1.svg").arg(iconName);
QPixmap pix = loadSvg(path);
this->setIcon(pix);
} else {
QPixmap pix = icon.pixmap(iconSize());
this->setIcon(drawSymbolicColoredPixmap(pix));
}
}
QPixmap IconButton::loadSvg(const QString &path, int size) {
int origSize = size;
const auto ratio = qApp->devicePixelRatio();
if ( ratio >= 2) {
size += origSize;
} else {
size *= ratio;
}
QPixmap pixmap(size, size);
QSvgRenderer renderer(path);
pixmap.fill(Qt::transparent);
QPainter painter;
painter.begin(&pixmap);
renderer.render(&painter);
painter.end();
pixmap.setDevicePixelRatio(ratio);
return drawSymbolicColoredPixmap(pixmap);
}
QPixmap IconButton::drawSymbolicColoredPixmap(const QPixmap &source) {
QImage img = source.toImage();
for (int x = 0; x < img.width(); x++) {
for (int y = 0; y < img.height(); y++) {
QColor color = img.pixelColor(x, y);
if (color.alpha() > 0) {
QColor colorSet = palette().color(QPalette::ButtonText);
if (this->isChecked()) {
color.setRed(255);
color.setGreen(255);
color.setBlue(255);
} else {
color.setRed(colorSet.red());
color.setGreen(colorSet.green());
color.setBlue(colorSet.blue());
}
img.setPixelColor(x, y, color);
}
}
}
return QPixmap::fromImage(img);
}
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