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39 
40 #ifndef QACTION_H
41 #define QACTION_H
42 
43 #include <QtWidgets/qtwidgetsglobal.h>
44 #include <QtGui/qkeysequence.h>
45 #include <QtCore/qstring.h>
46 #include <QtWidgets/qwidget.h>
47 #include <QtCore/qvariant.h>
48 #include <QtGui/qicon.h>
49 
50 QT_BEGIN_NAMESPACE
51 
52 
53 #ifndef QT_NO_ACTION
54 
55 class QMenu;
56 class QActionGroup;
57 class QActionPrivate;
58 class QGraphicsWidget;
59 
60 class Q_WIDGETS_EXPORT QAction : public QObject
61 {
62     Q_OBJECT
63     Q_DECLARE_PRIVATE(QAction)
64 
65     Q_PROPERTY(bool checkable READ isCheckable WRITE setCheckable NOTIFY changed)
66     Q_PROPERTY(bool checked READ isChecked WRITE setChecked NOTIFY toggled)
67     Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY changed)
68     Q_PROPERTY(QIcon icon READ icon WRITE setIcon NOTIFY changed)
69     Q_PROPERTY(QString text READ text WRITE setText NOTIFY changed)
70     Q_PROPERTY(QString iconText READ iconText WRITE setIconText NOTIFY changed)
71     Q_PROPERTY(QString toolTip READ toolTip WRITE setToolTip NOTIFY changed)
72     Q_PROPERTY(QString statusTip READ statusTip WRITE setStatusTip NOTIFY changed)
73     Q_PROPERTY(QString whatsThis READ whatsThis WRITE setWhatsThis NOTIFY changed)
74     Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY changed)
75 #if QT_CONFIG(shortcut)
76     Q_PROPERTY(QKeySequence shortcut READ shortcut WRITE setShortcut NOTIFY changed)
77     Q_PROPERTY(Qt::ShortcutContext shortcutContext READ shortcutContext WRITE setShortcutContext NOTIFY changed)
78     Q_PROPERTY(bool autoRepeat READ autoRepeat WRITE setAutoRepeat NOTIFY changed)
79 #endif
80     Q_PROPERTY(bool visible READ isVisible WRITE setVisible NOTIFY changed)
81     Q_PROPERTY(MenuRole menuRole READ menuRole WRITE setMenuRole NOTIFY changed)
82     Q_PROPERTY(bool iconVisibleInMenu READ isIconVisibleInMenu WRITE setIconVisibleInMenu NOTIFY changed)
83     Q_PROPERTY(bool shortcutVisibleInContextMenu READ isShortcutVisibleInContextMenu WRITE setShortcutVisibleInContextMenu NOTIFY changed)
84     Q_PROPERTY(Priority priority READ priority WRITE setPriority)
85 
86 public:
87     // note this is copied into qplatformmenu.h, which must stay in sync
88     enum MenuRole { NoRole = 0, TextHeuristicRole, ApplicationSpecificRole, AboutQtRole,
89                     AboutRole, PreferencesRole, QuitRole };
90     Q_ENUM(MenuRole)
91     enum Priority { LowPriority = 0,
92                     NormalPriority = 128,
93                     HighPriority = 256};
94     Q_ENUM(Priority)
95     explicit QAction(QObject *parent = nullptr);
96     explicit QAction(const QString &text, QObject *parent = nullptr);
97     explicit QAction(const QIcon &icon, const QString &text, QObject *parent = nullptr);
98 
99     ~QAction();
100 
101     void setActionGroup(QActionGroup *group);
102     QActionGroup *actionGroup() const;
103     void setIcon(const QIcon &icon);
104     QIcon icon() const;
105 
106     void setText(const QString &text);
107     QString text() const;
108 
109     void setIconText(const QString &text);
110     QString iconText() const;
111 
112     void setToolTip(const QString &tip);
113     QString toolTip() const;
114 
115     void setStatusTip(const QString &statusTip);
116     QString statusTip() const;
117 
118     void setWhatsThis(const QString &what);
119     QString whatsThis() const;
120 
121     void setPriority(Priority priority);
122     Priority priority() const;
123 
124 #if QT_CONFIG(menu)
125     QMenu *menu() const;
126     void setMenu(QMenu *menu);
127 #endif
128 
129     void setSeparator(bool b);
130     bool isSeparator() const;
131 
132 #if QT_CONFIG(shortcut)
133     void setShortcut(const QKeySequence &shortcut);
134     QKeySequence shortcut() const;
135 
136     void setShortcuts(const QList<QKeySequence> &shortcuts);
137     void setShortcuts(QKeySequence::StandardKey);
138     QList<QKeySequence> shortcuts() const;
139 
140     void setShortcutContext(Qt::ShortcutContext context);
141     Qt::ShortcutContext shortcutContext() const;
142 
143     void setAutoRepeat(bool);
144     bool autoRepeat() const;
145 #endif
146 
147     void setFont(const QFont &font);
148     QFont font() const;
149 
150     void setCheckable(bool);
151     bool isCheckable() const;
152 
153     QVariant data() const;
154     void setData(const QVariant &var);
155 
156     bool isChecked() const;
157 
158     bool isEnabled() const;
159 
160     bool isVisible() const;
161 
162     enum ActionEvent { Trigger, Hover };
163     void activate(ActionEvent event);
164     bool showStatusText(QWidget *widget = nullptr);
165 
166     void setMenuRole(MenuRole menuRole);
167     MenuRole menuRole() const;
168 
169     void setIconVisibleInMenu(bool visible);
170     bool isIconVisibleInMenu() const;
171 
172     void setShortcutVisibleInContextMenu(bool show);
173     bool isShortcutVisibleInContextMenu() const;
174 
175     QWidget *parentWidget() const;
176 
177     QList<QWidget *> associatedWidgets() const;
178 #if QT_CONFIG(graphicsview)
179     QList<QGraphicsWidget *> associatedGraphicsWidgets() const; // ### suboptimal
180 #endif
181 
182 protected:
183     bool event(QEvent *) override;
184     QAction(QActionPrivate &dd, QObject *parent);
185 
186 public Q_SLOTS:
trigger()187     void trigger() { activate(Trigger); }
hover()188     void hover() { activate(Hover); }
189     void setChecked(bool);
190     void toggle();
191     void setEnabled(bool);
setDisabled(bool b)192     inline void setDisabled(bool b) { setEnabled(!b); }
193     void setVisible(bool);
194 
195 Q_SIGNALS:
196     void changed();
197     void triggered(bool checked = false);
198     void hovered();
199     void toggled(bool);
200 
201 private:
202     Q_DISABLE_COPY(QAction)
203 
204     friend class QGraphicsWidget;
205     friend class QWidget;
206     friend class QActionGroup;
207     friend class QMenu;
208     friend class QMenuPrivate;
209     friend class QMenuBar;
210     friend class QToolButton;
211 #ifdef Q_OS_MAC
212     friend void qt_mac_clear_status_text(QAction *action);
213 #endif
214 };
215 
216 #ifndef QT_NO_DEBUG_STREAM
217 Q_WIDGETS_EXPORT QDebug operator<<(QDebug, const QAction *);
218 #endif
219 
220 QT_BEGIN_INCLUDE_NAMESPACE
221 #include <QtWidgets/qactiongroup.h>
222 QT_END_INCLUDE_NAMESPACE
223 
224 #endif // QT_NO_ACTION
225 
226 QT_END_NAMESPACE
227 
228 #endif // QACTION_H
229