1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Designer of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL-EXCEPT$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU
19** General Public License version 3 as published by the Free Software
20** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
21** included in the packaging of this file. Please review the following
22** information to ensure the GNU General Public License requirements will
23** be met: https://www.gnu.org/licenses/gpl-3.0.html.
24**
25** $QT_END_LICENSE$
26**
27****************************************************************************/
28
29#ifndef ACTIONPROVIDER_H
30#define ACTIONPROVIDER_H
31
32//
33// W A R N I N G
34// -------------
35//
36// This file is not part of the Qt API. It exists purely as an
37// implementation detail. This header file may change from version to
38// version without notice, or even be removed.
39//
40// We mean it.
41//
42
43#include <QtDesigner/extension.h>
44#include <QtCore/qpoint.h>
45#include <QtCore/qrect.h>
46#include <QtWidgets/qapplication.h>
47
48QT_BEGIN_NAMESPACE
49
50class QAction;
51
52class QDesignerActionProviderExtension
53{
54public:
55 virtual ~QDesignerActionProviderExtension() = default;
56
57 virtual QRect actionGeometry(QAction *action) const = 0;
58 virtual QAction *actionAt(const QPoint &pos) const = 0;
59
60 virtual void adjustIndicator(const QPoint &pos) = 0;
61};
62
63// Find action at the given position for a widget that has actionGeometry() (QToolBar,
64// QMenuBar, QMenu). They usually have actionAt(), but that fails since Designer usually sets
65// WA_TransparentForMouseEvents on the widgets.
66template <class Widget>
67 int actionIndexAt(const Widget *w, const QPoint &pos, Qt::Orientation orientation)
68{
69 const auto actions = w->actions();
70 const int actionCount = actions.count();
71 if (actionCount == 0)
72 return -1;
73 // actionGeometry() can be wrong sometimes; it returns a geometry that
74 // stretches to the end of the toolbar/menu bar. So, check from the beginning
75 // in the case of a horizontal right-to-left orientation.
76 const bool checkTopRight = orientation == Qt::Horizontal && w->layoutDirection() == Qt::RightToLeft;
77 const QPoint topRight = QPoint(w->rect().width(), 0);
78 for (int index = 0; index < actionCount; ++index) {
79 QRect g = w->actionGeometry(actions.at(index));
80 if (checkTopRight)
81 g.setTopRight(topRight);
82 else
83 g.setTopLeft(QPoint(0, 0));
84
85 if (g.contains(p: pos))
86 return index;
87 }
88 return -1;
89}
90
91Q_DECLARE_EXTENSION_INTERFACE(QDesignerActionProviderExtension, "org.qt-project.Qt.Designer.ActionProvider")
92
93QT_END_NAMESPACE
94
95#endif // ACTIONPROVIDER_H
96

source code of qttools/src/designer/src/lib/shared/actionprovider_p.h