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 QQUICKFONTMETRICS_H |
5 | #define QQUICKFONTMETRICS_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 <private/qtquickglobal_p.h> |
19 | |
20 | #include <QtQml/qqml.h> |
21 | |
22 | #include <QtGui/qfontmetrics.h> |
23 | |
24 | #include <QtCore/qobject.h> |
25 | |
26 | QT_BEGIN_NAMESPACE |
27 | |
28 | class QFont; |
29 | |
30 | class Q_QUICK_PRIVATE_EXPORT QQuickFontMetrics : public QObject |
31 | { |
32 | Q_OBJECT |
33 | |
34 | Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged FINAL) |
35 | Q_PROPERTY(qreal ascent READ ascent NOTIFY fontChanged FINAL) |
36 | Q_PROPERTY(qreal descent READ descent NOTIFY fontChanged FINAL) |
37 | Q_PROPERTY(qreal height READ height NOTIFY fontChanged FINAL) |
38 | Q_PROPERTY(qreal leading READ leading NOTIFY fontChanged FINAL) |
39 | Q_PROPERTY(qreal lineSpacing READ lineSpacing NOTIFY fontChanged FINAL) |
40 | Q_PROPERTY(qreal minimumLeftBearing READ minimumLeftBearing NOTIFY fontChanged FINAL) |
41 | Q_PROPERTY(qreal minimumRightBearing READ minimumRightBearing NOTIFY fontChanged FINAL) |
42 | Q_PROPERTY(qreal maximumCharacterWidth READ maximumCharacterWidth NOTIFY fontChanged FINAL) |
43 | Q_PROPERTY(qreal xHeight READ xHeight NOTIFY fontChanged FINAL) |
44 | Q_PROPERTY(qreal averageCharacterWidth READ averageCharacterWidth NOTIFY fontChanged FINAL) |
45 | Q_PROPERTY(qreal underlinePosition READ underlinePosition NOTIFY fontChanged FINAL) |
46 | Q_PROPERTY(qreal overlinePosition READ overlinePosition NOTIFY fontChanged FINAL) |
47 | Q_PROPERTY(qreal strikeOutPosition READ strikeOutPosition NOTIFY fontChanged FINAL) |
48 | Q_PROPERTY(qreal lineWidth READ lineWidth NOTIFY fontChanged FINAL) |
49 | QML_NAMED_ELEMENT(FontMetrics) |
50 | QML_ADDED_IN_VERSION(2, 4) |
51 | public: |
52 | explicit QQuickFontMetrics(QObject *parent = nullptr); |
53 | |
54 | QFont font() const; |
55 | void setFont(const QFont &font); |
56 | |
57 | qreal ascent() const; |
58 | qreal descent() const; |
59 | qreal height() const; |
60 | qreal leading() const; |
61 | qreal lineSpacing() const; |
62 | qreal minimumLeftBearing() const; |
63 | qreal minimumRightBearing() const; |
64 | qreal maximumCharacterWidth() const; |
65 | |
66 | qreal xHeight() const; |
67 | qreal averageCharacterWidth() const; |
68 | |
69 | qreal underlinePosition() const; |
70 | qreal overlinePosition() const; |
71 | qreal strikeOutPosition() const; |
72 | qreal lineWidth() const; |
73 | |
74 | Q_INVOKABLE qreal advanceWidth(const QString &text) const; |
75 | Q_INVOKABLE QRectF boundingRect(const QString &text) const; |
76 | Q_INVOKABLE QRectF tightBoundingRect(const QString &text) const; |
77 | Q_INVOKABLE QString elidedText(const QString &text, Qt::TextElideMode mode, qreal width, int flags = 0) const; |
78 | |
79 | Q_SIGNALS: |
80 | void fontChanged(const QFont &font); |
81 | |
82 | private: |
83 | QFont m_font; |
84 | QFontMetricsF m_metrics; |
85 | }; |
86 | |
87 | QT_END_NAMESPACE |
88 | |
89 | QML_DECLARE_TYPE(QQuickFontMetrics) |
90 | |
91 | #endif // QQUICKFONTMETRICS_H |
92 |