diff options
author | Lars Knoll <lars.knoll@nokia.com> | 2011-05-07 00:02:01 +0200 |
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committer | Lars Knoll <lars.knoll@nokia.com> | 2011-05-07 00:02:01 +0200 |
commit | f67b8df3ebdba2d398b9cce686b7c644adffff08 (patch) | |
tree | 062dd469f7cf8daa01a32d3e7b767b8fbdb7573a /src/widgets/platforms/x11/qregion_x11.cpp | |
parent | 32ce4fe9e6a94e77828e976776cf08da85254ff2 (diff) |
library split
Diffstat (limited to 'src/widgets/platforms/x11/qregion_x11.cpp')
-rw-r--r-- | src/widgets/platforms/x11/qregion_x11.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/widgets/platforms/x11/qregion_x11.cpp b/src/widgets/platforms/x11/qregion_x11.cpp new file mode 100644 index 0000000000..ef4e844bfa --- /dev/null +++ b/src/widgets/platforms/x11/qregion_x11.cpp @@ -0,0 +1,92 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <private/qt_x11_p.h> + +#include <limits.h> + +QT_BEGIN_NAMESPACE + +QRegion::QRegionData QRegion::shared_empty = {Q_BASIC_ATOMIC_INITIALIZER(1), 0, 0, 0}; + +void QRegion::updateX11Region() const +{ + d->rgn = XCreateRegion(); + if (!d->qt_rgn) + return; + + int n = d->qt_rgn->numRects; + const QRect *rect = (n == 1 ? &d->qt_rgn->extents : d->qt_rgn->rects.constData()); + while (n--) { + XRectangle r; + r.x = qMax(SHRT_MIN, rect->x()); + r.y = qMax(SHRT_MIN, rect->y()); + r.width = qMin((int)USHRT_MAX, rect->width()); + r.height = qMin((int)USHRT_MAX, rect->height()); + XUnionRectWithRegion(&r, d->rgn, d->rgn); + ++rect; + } +} + +void *QRegion::clipRectangles(int &num) const +{ + if (!d->xrectangles && !(d == &shared_empty || d->qt_rgn->numRects == 0)) { + XRectangle *r = static_cast<XRectangle*>(malloc(d->qt_rgn->numRects * sizeof(XRectangle))); + d->xrectangles = r; + int n = d->qt_rgn->numRects; + const QRect *rect = (n == 1 ? &d->qt_rgn->extents : d->qt_rgn->rects.constData()); + while (n--) { + r->x = qMax(SHRT_MIN, rect->x()); + r->y = qMax(SHRT_MIN, rect->y()); + r->width = qMin((int)USHRT_MAX, rect->width()); + r->height = qMin((int)USHRT_MAX, rect->height()); + ++r; + ++rect; + } + } + if (d == &shared_empty || d->qt_rgn->numRects == 0) + num = 0; + else + num = d->qt_rgn->numRects; + return d->xrectangles; +} + +QT_END_NAMESPACE |