Some work about adaptive color scheme for Web UI (PR #19901)
http://[316:c51a:62a3:8b9::4]/d4708/qBittorrent/src/branch/adaptive-webui
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80 lines
2.9 KiB
80 lines
2.9 KiB
7 years ago
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/*
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* Bittorrent Client using Qt and libtorrent.
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* Copyright (C) 2017 Mike Tzou
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* In addition, as a special exception, the copyright holders give permission to
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* link this program with the OpenSSL project's "OpenSSL" library (or with
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* modified versions of it that use the same license as the "OpenSSL" library),
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* and distribute the linked executables. You must obey the GNU General Public
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* License in all respects for all of the code used other than "OpenSSL". If you
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* modify file(s), you may extend this exception to your version of the file(s),
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* but you are not obligated to do so. If you do not wish to do so, delete this
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* exception statement from your version.
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*/
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#include "utils.h"
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#include <QApplication>
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#include <QDesktopWidget>
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#include <QScreen>
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#include <QStyle>
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#include <QWidget>
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#include <QWindow>
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qreal Utils::Gui::screenScalingFactor(const QWidget *widget)
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{
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#ifdef Q_OS_WIN
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const int screen = qApp->desktop()->screenNumber(widget);
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return (QApplication::screens()[screen]->logicalDotsPerInch() / 96);
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#else
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
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return widget->devicePixelRatioF();
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#else
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return widget->devicePixelRatio();
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#endif
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#endif // Q_OS_WIN
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}
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QPixmap Utils::Gui::scaledPixmap(const QString &path, const QWidget *widget, const int height)
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{
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const QPixmap pixmap(path);
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const int scaledHeight = ((height > 0) ? height : pixmap.height()) * Utils::Gui::screenScalingFactor(widget);
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return pixmap.scaledToHeight(scaledHeight, Qt::SmoothTransformation);
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}
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QSize Utils::Gui::smallIconSize(const QWidget *widget)
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{
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// Get DPI scaled icon size (device-dependent), see QT source
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// under a 1080p screen is usually 16x16
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const int s = QApplication::style()->pixelMetric(QStyle::PM_SmallIconSize, nullptr, widget);
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return QSize(s, s);
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}
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QSize Utils::Gui::mediumIconSize(const QWidget *widget)
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{
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// under a 1080p screen is usually 24x24
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return ((smallIconSize(widget) + largeIconSize(widget)) / 2);
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}
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QSize Utils::Gui::largeIconSize(const QWidget *widget)
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{
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// Get DPI scaled icon size (device-dependent), see QT source
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// under a 1080p screen is usually 32x32
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const int s = QApplication::style()->pixelMetric(QStyle::PM_LargeIconSize, nullptr, widget);
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return QSize(s, s);
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}
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