/**************************************************************************** ** ** Copyright (C) 2014 Ivan Komissarov ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qstorageinfo_p.h" #include #include #include #include #include #define QT_STATFSBUF struct statfs #define QT_STATFS ::statfs QT_BEGIN_NAMESPACE void QStorageInfoPrivate::initRootPath() { rootPath = QFileInfo(rootPath).canonicalFilePath(); if (rootPath.isEmpty()) return; retrieveUrlProperties(true); } void QStorageInfoPrivate::doStat() { initRootPath(); if (rootPath.isEmpty()) return; retrieveLabel(); retrievePosixInfo(); retrieveUrlProperties(); } void QStorageInfoPrivate::retrievePosixInfo() { QT_STATFSBUF statfs_buf; int result = QT_STATFS(QFile::encodeName(rootPath).constData(), &statfs_buf); if (result == 0) { device = QByteArray(statfs_buf.f_mntfromname); readOnly = (statfs_buf.f_flags & MNT_RDONLY) != 0; fileSystemType = QByteArray(statfs_buf.f_fstypename); blockSize = statfs_buf.f_bsize; } } static inline qint64 CFDictionaryGetInt64(CFDictionaryRef dictionary, const void *key) { CFNumberRef cfNumber = (CFNumberRef)CFDictionaryGetValue(dictionary, key); if (!cfNumber) return -1; qint64 result; bool ok = CFNumberGetValue(cfNumber, kCFNumberSInt64Type, &result); if (!ok) return -1; return result; } void QStorageInfoPrivate::retrieveUrlProperties(bool initRootPath) { static const void *rootPathKeys[] = { kCFURLVolumeURLKey }; static const void *propertyKeys[] = { // kCFURLVolumeNameKey, // 10.7 // kCFURLVolumeLocalizedNameKey, // 10.7 kCFURLVolumeTotalCapacityKey, kCFURLVolumeAvailableCapacityKey, // kCFURLVolumeIsReadOnlyKey // 10.7 }; size_t size = (initRootPath ? sizeof(rootPathKeys) : sizeof(propertyKeys)) / sizeof(void*); QCFType keys = CFArrayCreate(kCFAllocatorDefault, initRootPath ? rootPathKeys : propertyKeys, size, Q_NULLPTR); if (!keys) return; const QCFString cfPath = rootPath; if (initRootPath) rootPath.clear(); QCFType url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfPath, kCFURLPOSIXPathStyle, true); if (!url) return; CFErrorRef error; QCFType map = CFURLCopyResourcePropertiesForKeys(url, keys, &error); if (!map) return; if (initRootPath) { const CFURLRef rootUrl = (CFURLRef)CFDictionaryGetValue(map, kCFURLVolumeURLKey); if (!rootUrl) return; rootPath = QCFString(CFURLCopyFileSystemPath(rootUrl, kCFURLPOSIXPathStyle)); valid = true; ready = true; return; } bytesTotal = CFDictionaryGetInt64(map, kCFURLVolumeTotalCapacityKey); bytesAvailable = CFDictionaryGetInt64(map, kCFURLVolumeAvailableCapacityKey); bytesFree = bytesAvailable; } void QStorageInfoPrivate::retrieveLabel() { QCFString path = CFStringCreateWithFileSystemRepresentation(0, QFile::encodeName(rootPath).constData()); if (!path) return; QCFType url = CFURLCreateWithFileSystemPath(0, path, kCFURLPOSIXPathStyle, true); if (!url) return; QCFType volumeUrl; if (!CFURLCopyResourcePropertyForKey(url, kCFURLVolumeURLKey, &volumeUrl, NULL)) return; QCFString volumeName; if (!CFURLCopyResourcePropertyForKey(url, kCFURLNameKey, &volumeName, NULL)) return; name = volumeName; } QList QStorageInfoPrivate::mountedVolumes() { QList volumes; QCFType enumerator; enumerator = CFURLEnumeratorCreateForMountedVolumes(Q_NULLPTR, kCFURLEnumeratorSkipInvisibles, Q_NULLPTR); CFURLEnumeratorResult result = kCFURLEnumeratorSuccess; do { CFURLRef url; CFErrorRef error; result = CFURLEnumeratorGetNextURL(enumerator, &url, &error); if (result == kCFURLEnumeratorSuccess) { const QCFString urlString = CFURLCopyFileSystemPath(url, kCFURLPOSIXPathStyle); volumes.append(QStorageInfo(urlString)); } } while (result != kCFURLEnumeratorEnd); return volumes; } QStorageInfo QStorageInfoPrivate::root() { return QStorageInfo(QStringLiteral("/")); } QT_END_NAMESPACE 5c7f000cd4c9e3769e8cd4085cf0beee104f9886 (patch) tree5e704e7e92dd7653bcaa52773f643c36d082e959 /src/widgets/kernel/qwidgetbackingstore.cpp parenta69c0bb38e8edb985417c10793350e40e401fed3 (diff)

Reduce the number of paint events for QOpenGLWidget

Changes to other widgets in the window, especially special cases like moving dock widgets around, trigger an unfortunately high number of paint events and calls to paintGL(). Let's try to avoid this. There is no need to send out a paint event to a texture-backed widget when it was not explicitly dirtied. Overlaps won't matter since such widgets are not part of the backingstore. Everything else has to work like ordinary widgets, though, it is only the QPaintEvent sending we can optimize away, nothing else. Task-number: QTBUG-49466 Change-Id: I8ef294ba0a6c305d0002a80e85c06db2c2501cf8 Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>

Diffstat (limited to 'src/widgets/kernel/qwidgetbackingstore.cpp')

-rw-r--r--

src/widgets/kernel/qwidgetbackingstore.cpp

1 files changed, 3 insertions, 0 deletions