1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QLABEL_P_H
5#define QLABEL_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtWidgets/private/qtwidgetsglobal_p.h>
19#include "qlabel.h"
20
21#include "private/qtextdocumentlayout_p.h"
22#include "private/qwidgettextcontrol_p.h"
23#include "qtextdocumentfragment.h"
24#include "qframe_p.h"
25#include "qtextdocument.h"
26#if QT_CONFIG(movie)
27#include "qmovie.h"
28#endif
29#include "qimage.h"
30#include "qbitmap.h"
31#include "qpicture.h"
32#if QT_CONFIG(menu)
33#include "qmenu.h"
34#endif
35
36#include <optional>
37
38QT_BEGIN_NAMESPACE
39
40class Q_AUTOTEST_EXPORT QLabelPrivate : public QFramePrivate
41{
42 Q_DECLARE_PUBLIC(QLabel)
43public:
44 QLabelPrivate();
45 ~QLabelPrivate();
46
47 void init();
48 void clearContents();
49 void updateLabel();
50 QSize sizeForWidth(int w) const;
51
52#if QT_CONFIG(movie)
53 void _q_movieUpdated(const QRect&);
54 void _q_movieResized(const QSize&);
55#endif
56#ifndef QT_NO_SHORTCUT
57 void updateShortcut();
58 void _q_buddyDeleted();
59#endif
60 inline bool needTextControl() const {
61 Q_Q(const QLabel);
62 return isTextLabel
63 && (effectiveTextFormat != Qt::PlainText
64 || (textInteractionFlags & (Qt::TextSelectableByMouse | Qt::TextSelectableByKeyboard))
65 || q->focusPolicy() != Qt::NoFocus);
66 }
67
68 void ensureTextPopulated() const;
69 void ensureTextLayouted() const;
70 void ensureTextControl() const;
71 void sendControlEvent(QEvent *e);
72
73 void _q_linkHovered(const QString &link);
74
75 QRectF layoutRect() const;
76 QRect documentRect() const;
77 QPoint layoutPoint(const QPoint& p) const;
78 Qt::LayoutDirection textDirection() const;
79#ifndef QT_NO_CONTEXTMENU
80 QMenu *createStandardContextMenu(const QPoint &pos);
81#endif
82
83 mutable QSize sh;
84 mutable QSize msh;
85 QString text;
86 std::optional<QPixmap> pixmap;
87 std::optional<QPixmap> scaledpixmap;
88 std::optional<QImage> cachedimage;
89#ifndef QT_NO_PICTURE
90 std::optional<QPicture> picture;
91#endif
92#if QT_CONFIG(movie)
93 QPointer<QMovie> movie;
94#endif
95 mutable QWidgetTextControl *control;
96 mutable QTextCursor shortcutCursor;
97#ifndef QT_NO_CURSOR
98 QCursor cursor;
99#endif
100#ifndef QT_NO_SHORTCUT
101 QPointer<QWidget> buddy;
102 int shortcutId;
103#endif
104 Qt::TextFormat textformat;
105 Qt::TextFormat effectiveTextFormat;
106 Qt::TextInteractionFlags textInteractionFlags;
107 mutable QSizePolicy sizePolicy;
108 int margin;
109 ushort align;
110 short indent;
111 mutable uint valid_hints : 1;
112 uint scaledcontents : 1;
113 mutable uint textLayoutDirty : 1;
114 mutable uint textDirty : 1;
115 mutable uint isTextLabel : 1;
116 mutable uint hasShortcut : 1;
117#ifndef QT_NO_CURSOR
118 uint validCursor : 1;
119 uint onAnchor : 1;
120#endif
121 uint openExternalLinks : 1;
122 // <-- space for more bit field values here
123 QTextDocument::ResourceProvider resourceProvider;
124
125 friend class QMessageBoxPrivate;
126};
127
128QT_END_NAMESPACE
129
130#endif // QLABEL_P_H
131

source code of qtbase/src/widgets/widgets/qlabel_p.h