Qt 4.8
qstylepainter.h
Go to the documentation of this file.
1 /****************************************************************************
2 **
3 ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
5 **
6 ** This file is part of the QtGui module of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia. For licensing terms and
14 ** conditions see http://qt.digia.com/licensing. For further information
15 ** use the contact form at http://qt.digia.com/contact-us.
16 **
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 2.1 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 2.1 requirements
23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 **
25 ** In addition, as a special exception, Digia gives you certain additional
26 ** rights. These rights are described in the Digia Qt LGPL Exception
27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 **
29 ** GNU General Public License Usage
30 ** Alternatively, this file may be used under the terms of the GNU
31 ** General Public License version 3.0 as published by the Free Software
32 ** Foundation and appearing in the file LICENSE.GPL included in the
33 ** packaging of this file. Please review the following information to
34 ** ensure the GNU General Public License version 3.0 requirements will be
35 ** met: http://www.gnu.org/copyleft/gpl.html.
36 **
37 **
38 ** $QT_END_LICENSE$
39 **
40 ****************************************************************************/
41 
42 #ifndef QSTYLEPAINTER_H
43 #define QSTYLEPAINTER_H
44 
45 #include <QtGui/qpainter.h>
46 #include <QtGui/qstyle.h>
47 #include <QtGui/qwidget.h>
48 
50 
52 
53 QT_MODULE(Gui)
54 
56 {
57 public:
58  inline QStylePainter() : QPainter(), widget(0), wstyle(0) {}
59  inline explicit QStylePainter(QWidget *w) { begin(w, w); }
60  inline QStylePainter(QPaintDevice *pd, QWidget *w) { begin(pd, w); }
61  inline bool begin(QWidget *w) { return begin(w, w); }
62  inline bool begin(QPaintDevice *pd, QWidget *w) {
63  Q_ASSERT_X(w, "QStylePainter::QStylePainter", "Widget must be non-zero");
64  widget = w;
65  wstyle = w->style();
66  return QPainter::begin(pd);
67  };
68  inline void drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption &opt);
69  inline void drawControl(QStyle::ControlElement ce, const QStyleOption &opt);
70  inline void drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex &opt);
71  inline void drawItemText(const QRect &r, int flags, const QPalette &pal, bool enabled,
73  inline void drawItemPixmap(const QRect &r, int flags, const QPixmap &pixmap);
74  inline QStyle *style() const { return wstyle; }
75 
76 private:
80 };
81 
83 {
84  wstyle->drawPrimitive(pe, &opt, this, widget);
85 }
86 
88 {
89  wstyle->drawControl(ce, &opt, this, widget);
90 }
91 
93 {
94  wstyle->drawComplexControl(cc, &opt, this, widget);
95 }
96 
97 void QStylePainter::drawItemText(const QRect &r, int flags, const QPalette &pal, bool enabled,
98  const QString &text, QPalette::ColorRole textRole)
99 {
100  wstyle->drawItemText(this, r, flags, pal, enabled, text, textRole);
101 }
102 
103 void QStylePainter::drawItemPixmap(const QRect &r, int flags, const QPixmap &pixmap)
104 {
105  wstyle->drawItemPixmap(this, r, flags, pixmap);
106 }
107 
109 
111 
112 #endif // QSTYLEPAINTER_H
The QPainter class performs low-level painting on widgets and other paint devices.
Definition: qpainter.h:86
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QPointer< QWidget > widget
#define QT_MODULE(x)
Definition: qglobal.h:2783
ColorRole
The ColorRole enum defines the different symbolic color roles used in current GUIs.
Definition: qpalette.h:93
void drawControl(QStyle::ControlElement ce, const QStyleOption &opt)
Use the widget&#39;s style to draw a control element ce specified by QStyleOption option.
Definition: qstylepainter.h:87
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
ComplexControl
This enum describes the available complex controls.
Definition: qstyle.h:386
QStyle * style() const
Return the current style used by the QStylePainter.
Definition: qstylepainter.h:74
The QWidget class is the base class of all user interface objects.
Definition: qwidget.h:150
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
virtual void drawItemText(QPainter *painter, const QRect &rect, int flags, const QPalette &pal, bool enabled, const QString &text, QPalette::ColorRole textRole=QPalette::NoRole) const
Draws the given text in the specified rectangle using the provided painter and palette.
Definition: qstyle.cpp:532
The QString class provides a Unicode character string.
Definition: qstring.h:83
QStyle * style() const
Definition: qwidget.cpp:2742
QStyle * wstyle
Definition: qstylepainter.h:78
bool begin(QPaintDevice *)
Begins painting the paint device and returns true if successful; otherwise returns false...
Definition: qpainter.cpp:1723
QStylePainter(QWidget *w)
Construct a QStylePainter using widget widget for its paint device.
Definition: qstylepainter.h:59
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
void drawItemPixmap(const QRect &r, int flags, const QPixmap &pixmap)
Draws the pixmap in rectangle rect.
void drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption &opt)
Use the widget&#39;s style to draw a primitive element pe specified by QStyleOption option.
Definition: qstylepainter.h:82
QStylePainter()
Constructs a QStylePainter.
Definition: qstylepainter.h:58
QWidget * widget
Definition: qstylepainter.h:77
The QStyleOption class stores the parameters used by QStyle functions.
Definition: qstyleoption.h:67
bool begin(QWidget *w)
Begin painting operations on the specified widget.
Definition: qstylepainter.h:61
virtual void drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w=0) const =0
Draws the given primitive element with the provided painter using the style options specified by opti...
void drawItemText(const QRect &r, int flags, const QPalette &pal, bool enabled, const QString &text, QPalette::ColorRole textRole=QPalette::NoRole)
Definition: qstylepainter.h:97
virtual void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget=0) const =0
Draws the given control using the provided painter with the style options specified by option...
QStylePainter(QPaintDevice *pd, QWidget *w)
Construct a QStylePainter using pd for its paint device, and attributes from widget.
Definition: qstylepainter.h:60
bool begin(QPaintDevice *pd, QWidget *w)
This is an overloaded member function, provided for convenience. It differs from the above function o...
Definition: qstylepainter.h:62
virtual void drawItemPixmap(QPainter *painter, const QRect &rect, int alignment, const QPixmap &pixmap) const
Draws the given pixmap in the specified rectangle, according to the specified alignment, using the provided painter.
Definition: qstyle.cpp:570
#define Q_ASSERT_X(cond, where, what)
Definition: qglobal.h:1837
PrimitiveElement
This enum describes the various primitive elements.
Definition: qstyle.h:145
virtual void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w=0) const =0
Draws the given element with the provided painter with the style options specified by option...
The QStyle class is an abstract base class that encapsulates the look and feel of a GUI...
Definition: qstyle.h:68
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
The QPixmap class is an off-screen image representation that can be used as a paint device...
Definition: qpixmap.h:71
The QStylePainter class is a convenience class for drawing QStyle elements inside a widget...
Definition: qstylepainter.h:55
ControlElement
This enum represents a control element.
Definition: qstyle.h:217
The QStyleOptionComplex class is used to hold parameters that are common to all complex controls...
Definition: qstyleoption.h:687
void drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex &opt)
Use the widget&#39;s style to draw a complex control cc specified by the QStyleOptionComplex option...
Definition: qstylepainter.h:92
#define class
#define QT_END_HEADER
Definition: qglobal.h:137
#define enabled
#define text
Definition: qobjectdefs.h:80
The QPalette class contains color groups for each widget state.
Definition: qpalette.h:61