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39 | |
40 | #ifndef QQUICKFONTMETRICS_H |
41 | #define QQUICKFONTMETRICS_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <qqml.h> |
55 | |
56 | #include <QtGui/QFontMetricsF> |
57 | #include <QtCore/QObject> |
58 | |
59 | QT_BEGIN_NAMESPACE |
60 | |
61 | class QFont; |
62 | |
63 | class Q_AUTOTEST_EXPORT QQuickFontMetrics : public QObject |
64 | { |
65 | Q_OBJECT |
66 | |
67 | Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged) |
68 | Q_PROPERTY(qreal ascent READ ascent NOTIFY fontChanged) |
69 | Q_PROPERTY(qreal descent READ descent NOTIFY fontChanged) |
70 | Q_PROPERTY(qreal height READ height NOTIFY fontChanged) |
71 | Q_PROPERTY(qreal leading READ leading NOTIFY fontChanged) |
72 | Q_PROPERTY(qreal lineSpacing READ lineSpacing NOTIFY fontChanged) |
73 | Q_PROPERTY(qreal minimumLeftBearing READ minimumLeftBearing NOTIFY fontChanged) |
74 | Q_PROPERTY(qreal minimumRightBearing READ minimumRightBearing NOTIFY fontChanged) |
75 | Q_PROPERTY(qreal maximumCharacterWidth READ maximumCharacterWidth NOTIFY fontChanged) |
76 | Q_PROPERTY(qreal xHeight READ xHeight NOTIFY fontChanged) |
77 | Q_PROPERTY(qreal averageCharacterWidth READ averageCharacterWidth NOTIFY fontChanged) |
78 | Q_PROPERTY(qreal underlinePosition READ underlinePosition NOTIFY fontChanged) |
79 | Q_PROPERTY(qreal overlinePosition READ overlinePosition NOTIFY fontChanged) |
80 | Q_PROPERTY(qreal strikeOutPosition READ strikeOutPosition NOTIFY fontChanged) |
81 | Q_PROPERTY(qreal lineWidth READ lineWidth NOTIFY fontChanged) |
82 | QML_NAMED_ELEMENT(FontMetrics) |
83 | QML_ADDED_IN_MINOR_VERSION(4) |
84 | public: |
85 | explicit QQuickFontMetrics(QObject *parent = nullptr); |
86 | ~QQuickFontMetrics(); |
87 | |
88 | QFont font() const; |
89 | void setFont(const QFont &font); |
90 | |
91 | qreal ascent() const; |
92 | qreal descent() const; |
93 | qreal height() const; |
94 | qreal leading() const; |
95 | qreal lineSpacing() const; |
96 | qreal minimumLeftBearing() const; |
97 | qreal minimumRightBearing() const; |
98 | qreal maximumCharacterWidth() const; |
99 | |
100 | qreal xHeight() const; |
101 | qreal averageCharacterWidth() const; |
102 | |
103 | qreal underlinePosition() const; |
104 | qreal overlinePosition() const; |
105 | qreal strikeOutPosition() const; |
106 | qreal lineWidth() const; |
107 | |
108 | Q_INVOKABLE qreal advanceWidth(const QString &text) const; |
109 | Q_INVOKABLE QRectF boundingRect(const QString &text) const; |
110 | Q_INVOKABLE QRectF tightBoundingRect(const QString &text) const; |
111 | Q_INVOKABLE QString elidedText(const QString &text, Qt::TextElideMode mode, qreal width, int flags = 0) const; |
112 | |
113 | Q_SIGNALS: |
114 | void fontChanged(const QFont &font); |
115 | |
116 | private: |
117 | QFont m_font; |
118 | QFontMetricsF m_metrics; |
119 | }; |
120 | |
121 | QT_END_NAMESPACE |
122 | |
123 | QML_DECLARE_TYPE(QQuickFontMetrics) |
124 | |
125 | #endif // QQUICKFONTMETRICS_H |
126 |