diff options
Diffstat (limited to 'src/gui/image/qpixmap.cpp')
| -rw-r--r-- | src/gui/image/qpixmap.cpp | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp index d4c0f264e8..e53af8038f 100644 --- a/src/gui/image/qpixmap.cpp +++ b/src/gui/image/qpixmap.cpp @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** 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 Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ @@ -675,13 +675,16 @@ qreal QPixmap::devicePixelRatio() const high-DPI pixmap rather than a large pixmap (see \l{Drawing High Resolution Versions of Pixmaps and Images}). - \sa devicePixelRatio() + \sa devicePixelRatio() */ void QPixmap::setDevicePixelRatio(qreal scaleFactor) { if (isNull()) return; + if (scaleFactor == data->devicePixelRatio()) + return; + detach(); data->setDevicePixelRatio(scaleFactor); } @@ -821,8 +824,7 @@ bool QPixmap::loadFromData(const uchar *buf, uint len, const char *format, Qt::I return false; } - if (!data) - data = QPlatformPixmap::create(0, 0, QPlatformPixmap::PixmapType); + data = QPlatformPixmap::create(0, 0, QPlatformPixmap::PixmapType); if (data->fromData(buf, len, format, flags)) return true; |