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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef ACTIONPROVIDER_H
#define ACTIONPROVIDER_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtDesigner/extension.h>
#include <QtCore/QPoint>
#include <QtCore/QRect>
#include <QtGui/QApplication>
QT_BEGIN_NAMESPACE
class QAction;
class QDesignerActionProviderExtension
{
public:
virtual ~QDesignerActionProviderExtension() {}
virtual QRect actionGeometry(QAction *action) const = 0;
virtual QAction *actionAt(const QPoint &pos) const = 0;
virtual void adjustIndicator(const QPoint &pos) = 0;
};
// Find action at the given position for a widget that has actionGeometry() (QToolBar,
// QMenuBar, QMenu). They usually have actionAt(), but that fails since Designer usually sets
// WA_TransparentForMouseEvents on the widgets.
template <class Widget>
int actionIndexAt(const Widget *w, const QPoint &pos, Qt::Orientation orientation)
{
const QList<QAction*> actions = w->actions();
const int actionCount = actions.count();
if (actionCount == 0)
return -1;
// actionGeometry() can be wrong sometimes; it returns a geometry that
// stretches to the end of the toolbar/menu bar. So, check from the beginning
// in the case of a horizontal right-to-left orientation.
const bool checkTopRight = orientation == Qt::Horizontal && w->layoutDirection() == Qt::RightToLeft;
const QPoint topRight = QPoint(w->rect().width(), 0);
for (int index = 0; index < actionCount; ++index) {
QRect g = w->actionGeometry(actions.at(index));
if (checkTopRight)
g.setTopRight(topRight);
else
g.setTopLeft(QPoint(0, 0));
if (g.contains(pos))
return index;
}
return -1;
}
Q_DECLARE_EXTENSION_INTERFACE(QDesignerActionProviderExtension, "com.trolltech.Qt.Designer.ActionProvider")
QT_END_NAMESPACE
#endif // ACTIONPROVIDER_H
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