mirror of
https://github.com/linuxdeepin/dde-dock.git
synced 2025-06-04 17:33:05 +00:00
105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
/*
|
|
* Copyright (C) 2011 ~ 2018 Deepin Technology Co., Ltd.
|
|
*
|
|
* Author: sbw <sbw@sbw.so>
|
|
*
|
|
* Maintainer: sbw <sbw@sbw.so>
|
|
*
|
|
* 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 of the License, or
|
|
* 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 "themeappicon.h"
|
|
|
|
#include <QIcon>
|
|
#include <QFile>
|
|
#include <QDebug>
|
|
#include <QApplication>
|
|
#include <QPixmapCache>
|
|
#include <QCryptographicHash>
|
|
|
|
ThemeAppIcon::ThemeAppIcon(QObject *parent) : QObject(parent)
|
|
{
|
|
|
|
}
|
|
|
|
ThemeAppIcon::~ThemeAppIcon()
|
|
{
|
|
|
|
}
|
|
|
|
const QPixmap ThemeAppIcon::getIcon(const QString iconName, const int size)
|
|
{
|
|
QPixmap pixmap;
|
|
|
|
const auto ratio = qApp->devicePixelRatio();
|
|
|
|
QString key;
|
|
|
|
if (iconName.startsWith("data:image/")) {
|
|
key = QCryptographicHash::hash(iconName.toUtf8(), QCryptographicHash::Md5).toHex();
|
|
|
|
// FIXME(hualet): The cache can reduce memory usage,
|
|
// that is ~2M on HiDPI enabled machine with 9 icons loaded,
|
|
// but I don't know why since QIcon has its own cache and all of the
|
|
// icons loaded are loaded by QIcon::fromTheme, really strange here.
|
|
if (QPixmapCache::find(key, &pixmap))
|
|
return pixmap;
|
|
}
|
|
|
|
// 把size改为小于size的最大偶数 :)
|
|
const int s = int(size * ratio) & ~1;
|
|
|
|
do {
|
|
|
|
if (iconName.startsWith("data:image/"))
|
|
{
|
|
const QStringList strs = iconName.split("base64,");
|
|
if (strs.size() == 2)
|
|
pixmap.loadFromData(QByteArray::fromBase64(strs.at(1).toLatin1()));
|
|
|
|
if (!pixmap.isNull())
|
|
break;
|
|
}
|
|
|
|
if (QFile::exists(iconName))
|
|
{
|
|
pixmap = QPixmap(iconName);
|
|
if (!pixmap.isNull())
|
|
break;
|
|
}
|
|
|
|
const QIcon icon = QIcon::fromTheme(iconName, QIcon::fromTheme("application-x-desktop"));
|
|
const int fakeSize = std::max(48, s); // cannot use 16x16, cause 16x16 is label icon
|
|
pixmap = icon.pixmap(QSize(fakeSize, fakeSize));
|
|
if (!pixmap.isNull())
|
|
break;
|
|
|
|
pixmap = QPixmap(":/icons/resources/application-x-desktop.svg");
|
|
if (!pixmap.isNull())
|
|
break;
|
|
|
|
Q_UNREACHABLE();
|
|
|
|
} while (false);
|
|
|
|
pixmap = pixmap.scaled(s, s, Qt::KeepAspectRatio, Qt::SmoothTransformation);
|
|
pixmap.setDevicePixelRatio(ratio);
|
|
|
|
if (!key.isEmpty()) {
|
|
QPixmapCache::insert(key, pixmap);
|
|
}
|
|
|
|
return pixmap;
|
|
}
|