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3** Copyright (C) 2017 The Qt Company Ltd.
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6** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit.
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25** GNU General Public License Usage
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35****************************************************************************/
36
37#ifndef QQUICKLABEL_P_P_H
38#define QQUICKLABEL_P_P_H
39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49//
50
51#include <QtQml/private/qlazilyallocated_p.h>
52#include <QtQuick/private/qquicktext_p_p.h>
53#include <QtQuick/private/qquickitemchangelistener_p.h>
54#include <QtQuickTemplates2/private/qquickdeferredpointer_p_p.h>
55
56#if QT_CONFIG(accessibility)
57#include <QtGui/qaccessible.h>
58#endif
59
60QT_BEGIN_NAMESPACE
61
62class QQuickLabelPrivate : public QQuickTextPrivate, public QQuickItemChangeListener
63#if QT_CONFIG(accessibility)
64 , public QAccessible::ActivationObserver
65#endif
66{
67 Q_DECLARE_PUBLIC(QQuickLabel)
68
69public:
70 QQuickLabelPrivate();
71 ~QQuickLabelPrivate();
72
73 static QQuickLabelPrivate *get(QQuickLabel *item)
74 {
75 return static_cast<QQuickLabelPrivate *>(QObjectPrivate::get(o: item));
76 }
77
78 inline QMarginsF getInset() const { return QMarginsF(getLeftInset(), getTopInset(), getRightInset(), getBottomInset()); }
79 inline qreal getTopInset() const { return extra.isAllocated() ? extra->topInset : 0; }
80 inline qreal getLeftInset() const { return extra.isAllocated() ? extra->leftInset : 0; }
81 inline qreal getRightInset() const { return extra.isAllocated() ? extra->rightInset : 0; }
82 inline qreal getBottomInset() const { return extra.isAllocated() ? extra->bottomInset : 0; }
83
84 void setTopInset(qreal value, bool reset = false);
85 void setLeftInset(qreal value, bool reset = false);
86 void setRightInset(qreal value, bool reset = false);
87 void setBottomInset(qreal value, bool reset = false);
88
89 void resizeBackground();
90
91 void resolveFont();
92 void inheritFont(const QFont &font);
93 void updateFont(const QFont &font);
94 inline void setFont_helper(const QFont &font) {
95 if (sourceFont.resolve() == font.resolve() && sourceFont == font)
96 return;
97 updateFont(font);
98 }
99
100 void resolvePalette();
101 void inheritPalette(const QPalette &palette);
102 void updatePalette(const QPalette &palette);
103 inline void setPalette_helper(const QPalette &palette) {
104 if (resolvedPalette.resolve() == palette.resolve() && resolvedPalette == palette)
105 return;
106 updatePalette(palette);
107 }
108
109 void textChanged(const QString &text);
110
111#if QT_CONFIG(accessibility)
112 void accessibilityActiveChanged(bool active) override;
113 QAccessible::Role accessibleRole() const override;
114 void maybeSetAccessibleName(const QString &name);
115#endif
116
117 void cancelBackground();
118 void executeBackground(bool complete = false);
119
120 void itemGeometryChanged(QQuickItem *item, QQuickGeometryChange change, const QRectF &diff) override;
121 void itemImplicitWidthChanged(QQuickItem *item) override;
122 void itemImplicitHeightChanged(QQuickItem *item) override;
123 void itemDestroyed(QQuickItem *item) override;
124
125 struct ExtraData {
126 bool hasTopInset = false;
127 bool hasLeftInset = false;
128 bool hasRightInset = false;
129 bool hasBottomInset = false;
130 bool hasBackgroundWidth = false;
131 bool hasBackgroundHeight = false;
132 qreal topInset = 0;
133 qreal leftInset = 0;
134 qreal rightInset = 0;
135 qreal bottomInset = 0;
136 QFont requestedFont;
137 QPalette requestedPalette;
138 };
139 QLazilyAllocated<ExtraData> extra;
140
141 bool resizingBackground = false;
142 QPalette resolvedPalette;
143 QQuickDeferredPointer<QQuickItem> background;
144};
145
146QT_END_NAMESPACE
147
148#endif // QQUICKLABEL_P_P_H
149

source code of qtquickcontrols2/src/quicktemplates2/qquicklabel_p_p.h