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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the Qt Designer of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #ifndef ACTIONPROVIDER_H |
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43 #define ACTIONPROVIDER_H |
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44 |
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45 // |
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46 // W A R N I N G |
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47 // ------------- |
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48 // |
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49 // This file is not part of the Qt API. It exists purely as an |
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50 // implementation detail. This header file may change from version to |
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51 // version without notice, or even be removed. |
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52 // |
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53 // We mean it. |
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54 // |
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55 |
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56 #include <QtDesigner/extension.h> |
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57 #include <QtCore/QPoint> |
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58 #include <QtCore/QRect> |
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59 #include <QtGui/QApplication> |
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60 |
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61 QT_BEGIN_NAMESPACE |
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62 |
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63 class QAction; |
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64 |
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65 class QDesignerActionProviderExtension |
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66 { |
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67 public: |
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68 virtual ~QDesignerActionProviderExtension() {} |
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69 |
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70 virtual QRect actionGeometry(QAction *action) const = 0; |
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71 virtual QAction *actionAt(const QPoint &pos) const = 0; |
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72 |
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73 virtual void adjustIndicator(const QPoint &pos) = 0; |
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74 }; |
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75 |
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76 // Find action at the given position for a widget that has actionGeometry() (QToolBar, |
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77 // QMenuBar, QMenu). They usually have actionAt(), but that fails since Designer usually sets |
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78 // WA_TransparentForMouseEvents on the widgets. |
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79 template <class Widget> |
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80 int actionIndexAt(const Widget *w, const QPoint &pos, Qt::Orientation orientation) |
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81 { |
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82 const QList<QAction*> actions = w->actions(); |
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83 const int actionCount = actions.count(); |
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84 if (actionCount == 0) |
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85 return -1; |
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86 // actionGeometry() can be wrong sometimes; it returns a geometry that |
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87 // stretches to the end of the toolbar/menu bar. So, check from the beginning |
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88 // in the case of a horizontal right-to-left orientation. |
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89 const bool checkTopRight = orientation == Qt::Horizontal && w->layoutDirection() == Qt::RightToLeft; |
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90 const QPoint topRight = QPoint(w->rect().width(), 0); |
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91 for (int index = 0; index < actionCount; ++index) { |
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92 QRect g = w->actionGeometry(actions.at(index)); |
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93 if (checkTopRight) |
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94 g.setTopRight(topRight); |
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95 else |
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96 g.setTopLeft(QPoint(0, 0)); |
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97 |
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98 if (g.contains(pos)) |
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99 return index; |
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100 } |
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101 return -1; |
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102 } |
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103 |
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104 Q_DECLARE_EXTENSION_INTERFACE(QDesignerActionProviderExtension, "com.trolltech.Qt.Designer.ActionProvider") |
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105 |
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106 QT_END_NAMESPACE |
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107 |
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108 #endif // ACTIONPROVIDER_H |