yhkylin-backup-tools/kybackup/component/imageutil.cpp

102 lines
3.3 KiB
C++
Executable File

#include "imageutil.h"
#include <QPainter>
#include <QApplication>
#include <QIcon>
//const QPixmap ImageUtil::loadSvg(const QString &path, const QString& color, int size)
//{
// int origSize = size;
// const auto ratio = qApp->devicePixelRatio();
// if ( 2 == ratio) {
// size += origSize;
// } else if (3 == ratio) {
// size += origSize;
// }
// 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, color);
//}
const QPixmap ImageUtil::loadTheme(const QString &theme, const QString &defaultTheme, const QString& color, int size)
{
// int origSize = size;
const auto ratio = qApp->devicePixelRatio();
// size = origSize * ratio;
QIcon icon = QIcon::fromTheme(theme, QIcon(defaultTheme));
QPixmap pixmap = icon.pixmap(icon.actualSize(QSize(size, size)));
pixmap.setDevicePixelRatio(ratio);
return drawSymbolicColoredPixmap(pixmap, color);
}
const QPixmap ImageUtil::loadTheme(const QString &theme, const QString &defaultTheme, const QString& color, QSize size)
{
// int origWidth = size.width();
// int origHeight = size.height();
const auto ratio = qApp->devicePixelRatio();
// size.setWidth(origWidth * ratio);
// size.setHeight(origHeight * ratio);
QIcon icon = QIcon::fromTheme(theme, QIcon(defaultTheme));
QPixmap pixmap = icon.pixmap(icon.actualSize(size));
pixmap.setDevicePixelRatio(ratio);
return drawSymbolicColoredPixmap(pixmap, color);
}
const QPixmap ImageUtil::loadPixmap(QIcon &icon, const QString &color, int size)
{
int origSize = size;
const auto ratio = qApp->devicePixelRatio();
size = origSize * ratio;
QPixmap pixmap = icon.pixmap(QSize(size, size));
pixmap.setDevicePixelRatio(ratio);
return drawSymbolicColoredPixmap(pixmap, color);
}
QPixmap ImageUtil::drawSymbolicColoredPixmap(const QPixmap &source, const QString& cgColor)
{
QImage img = source.toImage();
for (int x = 0; x < img.width(); x++) {
for (int y = 0; y < img.height(); y++) {
auto color = img.pixelColor(x, y);
if (color.alpha() > 0) {
if ( "white" == cgColor) {
color.setRed(255);
color.setGreen(255);
color.setBlue(255);
img.setPixelColor(x, y, color);
} else if( "black" == cgColor) {
color.setRed(0);
color.setGreen(0);
color.setBlue(0);
img.setPixelColor(x, y, color);
} else if ("gray"== cgColor) {
color.setRed(152);
color.setGreen(163);
color.setBlue(164);
img.setPixelColor(x, y, color);
} else if ("blue" == cgColor){
color.setRed(61);
color.setGreen(107);
color.setBlue(229);
img.setPixelColor(x, y, color);
} else {
return source;
}
}
}
}
return QPixmap::fromImage(img);
}