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39
40#include "qstylepainter.h"
41
42QT_BEGIN_NAMESPACE
43
44/*!
45 \class QStylePainter
46
47 \brief The QStylePainter class is a convenience class for drawing QStyle
48 elements inside a widget.
49
50 \ingroup appearance
51 \ingroup painting
52 \inmodule QtWidgets
53
54 QStylePainter extends QPainter with a set of high-level \c
55 draw...() functions implemented on top of QStyle's API. The
56 advantage of using QStylePainter is that the parameter lists get
57 considerably shorter. Whereas a QStyle object must be able to
58 draw on any widget using any painter (because the application
59 normally has one QStyle object shared by all widget), a
60 QStylePainter is initialized with a widget, eliminating the need
61 to specify the QWidget, the QPainter, and the QStyle for every
62 function call.
63
64 Example using QStyle directly:
65
66 \snippet styles/styles.cpp 1
67
68 Example using QStylePainter:
69
70 \snippet styles/styles.cpp 0
71 \snippet styles/styles.cpp 4
72 \snippet styles/styles.cpp 6
73
74 \sa QStyle, QStyleOption
75*/
76
77/*!
78 \fn QStylePainter::QStylePainter()
79
80 Constructs a QStylePainter.
81*/
82
83/*!
84 \fn QStylePainter::QStylePainter(QWidget *widget)
85
86 Construct a QStylePainter using widget \a widget for its paint device.
87*/
88
89/*!
90 \fn QStylePainter::QStylePainter(QPaintDevice *pd, QWidget *widget)
91
92 Construct a QStylePainter using \a pd for its paint device, and
93 attributes from \a widget.
94*/
95
96
97/*!
98 \fn bool QStylePainter::begin(QWidget *widget)
99
100 Begin painting operations on the specified \a widget.
101 Returns \c true if the painter is ready to use; otherwise returns \c false.
102
103 This is automatically called by the constructor that takes a QWidget.
104*/
105
106/*!
107 \fn bool QStylePainter::begin(QPaintDevice *pd, QWidget *widget)
108 \overload
109
110 Begin painting operations on paint device \a pd as if it was \a
111 widget.
112
113 This is automatically called by the constructor that
114 takes a QPaintDevice and a QWidget.
115*/
116
117
118/*!
119 \fn void QStylePainter::drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption &option)
120
121 Use the widget's style to draw a primitive element \a pe specified by QStyleOption \a option.
122
123 \sa QStyle::drawPrimitive()
124*/
125
126/*!
127 \fn void QStylePainter::drawControl(QStyle::ControlElement ce, const QStyleOption &option)
128
129 Use the widget's style to draw a control element \a ce specified by QStyleOption \a option.
130
131 \sa QStyle::drawControl()
132*/
133
134/*!
135 \fn void QStylePainter::drawComplexControl(QStyle::ComplexControl cc,
136 const QStyleOptionComplex &option)
137
138 Use the widget's style to draw a complex control \a cc specified by the
139 QStyleOptionComplex \a option.
140
141 \sa QStyle::drawComplexControl()
142*/
143
144/*!
145 \fn void QStylePainter::drawItemText(const QRect &rect, int flags, const QPalette &pal,
146 bool enabled, const QString &text,
147 QPalette::ColorRole textRole = QPalette::NoRole)
148
149 Draws the \a text in rectangle \a rect and palette \a pal.
150 The text is aligned and wrapped according to \a
151 flags.
152
153 The pen color is specified with \a textRole. The \a enabled bool
154 indicates whether or not the item is enabled; when reimplementing
155 this bool should influence how the item is drawn.
156
157 \sa QStyle::drawItemText(), Qt::Alignment
158*/
159
160/*!
161 \fn void QStylePainter::drawItemPixmap(const QRect &rect, int flags, const QPixmap &pixmap)
162
163 Draws the \a pixmap in rectangle \a rect.
164 The pixmap is aligned according to \a flags.
165
166 \sa QStyle::drawItemPixmap(), Qt::Alignment
167*/
168
169/*!
170 \fn QStyle *QStylePainter::style() const
171
172 Return the current style used by the QStylePainter.
173*/
174
175QT_END_NAMESPACE
176

source code of qtbase/src/widgets/styles/qstylepainter.cpp