forked from qt-creator/qt-creator
5292748bf2
Change-Id: I6e25ba25aa2898b5382dae7f3751deebb6072efa Reviewed-by: Eike Ziller <eike.ziller@digia.com>
72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "execmenu.h"
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#include <QApplication>
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#include <QDesktopWidget>
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#include <QMenu>
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#include <QPoint>
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#include <QRect>
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#include <QSize>
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#include <QWidget>
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namespace Utils {
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/*!
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* Opens \a menu at the specified \a widget position.
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* This function computes the position where to show the menu, and opens it with
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* QMenu::exec().
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*/
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QAction *execMenuAtWidget(QMenu *menu, QWidget *widget)
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{
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QPoint p;
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QRect screen = qApp->desktop()->availableGeometry(widget);
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QSize sh = menu->sizeHint();
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QRect rect = widget->rect();
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if (widget->isRightToLeft()) {
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if (widget->mapToGlobal(QPoint(0, rect.bottom())).y() + sh.height() <= screen.height())
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p = widget->mapToGlobal(rect.bottomRight());
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else
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p = widget->mapToGlobal(rect.topRight() - QPoint(0, sh.height()));
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p.rx() -= sh.width();
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} else {
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if (widget->mapToGlobal(QPoint(0, rect.bottom())).y() + sh.height() <= screen.height())
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p = widget->mapToGlobal(rect.bottomLeft());
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else
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p = widget->mapToGlobal(rect.topLeft() - QPoint(0, sh.height()));
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}
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p.rx() = qMax(screen.left(), qMin(p.x(), screen.right() - sh.width()));
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p.ry() += 1;
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return menu->exec(p);
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}
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} // namespace Utils
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