qpen.3qt

tmark1.11:用于生成QT/EMBEDDED应用工程的Markfile文件

.TH QPen 3qt "6 July 1999" "Troll Tech AS" \" -*- nroff -*-
.\" Copyright 1992-1999 Troll Tech AS.  All rights reserved.  See the
.\" license file included in the distribution for a complete license
.\" statement.
.\"
.ad l
.nh
.SH NAME
QPen \- Defines how a QPainter should draw lines and outlines of shapes
.SH SYNOPSIS
.br
.PP
\fC#include <qpen.h>\fR
.PP
Inherits Qt.
.PP
.SS "Public Members"
.in +1c
.ti -1c
.BI "\fBQPen\fR ()"
.br
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.BI "\fBQPen\fR ( PenStyle )"
.br
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.BI "\fBQPen\fR ( const QColor & " "color" ", uint " "width" "=0, PenStyle " "style" "=SolidLine )"
.br
.ti -1c
.BI "\fBQPen\fR ( const QPen & )"
.br
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.BI "\fB~QPen\fR ()"
.br
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.BI "QPen& \fBoperator=\fR ( const QPen & )"
.br
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.BI "PenStyle \fBstyle\fR () const"
.br
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.BI "void \fBsetStyle\fR ( PenStyle )"
.br
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.BI "uint \fBwidth\fR () const"
.br
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.BI "void \fBsetWidth\fR ( uint )"
.br
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.BI "const QColor& \fBcolor\fR () const"
.br
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.BI "void \fBsetColor\fR ( const QColor & )"
.br
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.BI "bool \fBoperator==\fR ( const QPen & p ) const"
.br
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.BI "bool \fBoperator!=\fR ( const QPen & p ) const"
.br
.in -1c
.SH RELATED FUNCTION DOCUMENTATION
(Note that these are not member functions.)
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.BI "QDataStream & \fBoperator<<\fR (QDataStream & " "s" ", const QPen & " "p" ")"
.br
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.BI "QDataStream & \fBoperator>>\fR (QDataStream & " "s" ", QPen & " "p" ")"
.br
.in -1c
.SH DESCRIPTION
The QPen class defines how a QPainter should draw lines and outlines of shapes.
.PP
A pen has a style, a width and a color.
.PP
The pen style defines the line type. The default pen style is \fCQt::SolidLine.\fR Setting the style to \fCNoPen\fR tells the painter to not draw lines or outlines.
.PP
The pen width defines the line width. The default line width is 0, which draws a 1-pixel line very fast, but with lower precision than with a line width of 1. Setting the line width to 1 or more draws lines that are precise, but drawing is slower.
.PP
The pen color defines the color of lines and text. The default line color is black. The QColor documentation lists predefined colors.
.PP
Use the QBrush class for specifying fill styles.
.PP
Example:
.PP
.nf
.br
    QPainter painter;
.br
    QPen     pen( red, 2 );             // red solid line, 2 pixel width
.br
    painter.begin( &anyPaintDevice );   // paint something
.br
    painter.setPen( pen );              // set the red, fat pen
.br
    painter.drawRect( 40,30, 200,100 ); // draw rectangle
.br
    painter.setPen( blue );             // set blue pen, 0 pixel width
.br
    painter.drawLine( 40,30, 240,130 ); // draw diagonal in rectangle
.br
    painter.end();                      // painting done
.fi
.PP
See the setStyle() function for a complete list of pen styles.
.PP
See also: QPainter and QPainter::setPen().
.PP
Examples:
.(l
progress/progress.cpp desktop/desktop.cpp
.)l
.SH MEMBER FUNCTION DOCUMENTATION
.SH "QPen::QPen ()"
Constructs a default black solid line pen with 0 width.
.SH "QPen::QPen ( PenStyle style )"
Constructs a pen black with 0 width and a specified style.
.PP
See also: setStyle().
.SH "QPen::QPen ( const QColor & color, uint width=0, PenStyle style=SolidLine )"
Constructs a pen with a specified color, width and style.
.PP
See also: setWidth(), setStyle() and setColor().
.SH "QPen::QPen ( const QPen & p )"
Constructs a pen which is a copy of \fIp.\fR
.SH "QPen::~QPen ()"
Destroys the pen.
.SH "const QColor & QPen::color () const"
Returns the pen color.
.PP
See also: setColor().
.SH "bool QPen::operator!= ( const QPen & p ) const"
Returns TRUE if the pen is different from \fIp,\fR or FALSE if the pens are equal.
.PP
Two pens are different if they have different styles, widths or colors.
.PP
See also: operator==().
.SH "QPen & QPen::operator= ( const QPen & p )"
Assigns \fIc\fR to this pen and returns a reference to this pen.
.SH "bool QPen::operator== ( const QPen & p ) const"
Returns TRUE if the pen is equal to \fIp,\fR or FALSE if the pens are different.
.PP
Two pens are equal if they have equal styles, widths and colors.
.PP
See also: operator!=().
.SH "void QPen::setColor ( const QColor & c )"
Sets the pen color to \fIc.\fR
.PP
See also: color().
.PP
Examples:
.(l
progress/progress.cpp
.)l
.SH "void QPen::setWidth ( uint w )"
Sets the pen width to \fIw.\fR
.PP
See also: width().
.PP
Examples:
.(l
progress/progress.cpp
.)l
.SH "PenStyle QPen::style () const"
Returns the pen style.
.PP
See also: setStyle().
.SH "uint QPen::width () const"
Returns the pen width.
.PP
See also: setWidth().
.SH RELATED FUNCTION DOCUMENTATION
.SH "QDataStream & operator<< (QDataStream & s, const QPen & p)"
Writes a pen to the stream and returns a reference to the stream.
.PP
The serialization format is:
.IP 1
The pen style (UINT8)
.IP 2
The pen width (UINT8)
.IP 3
The pen color (QColor)
.SH "QDataStream & operator>> (QDataStream & s, QPen & p)"
Reads a pen from the stream and returns a reference to the stream.
.SH "SEE ALSO"
.BR http://www.troll.no/qt/qpen.html
.SH COPYRIGHT
Copyright 1992-1999 Troll Tech AS.  See the license file included in
the distribution for a complete license statement.
.SH AUTHOR
Generated automatically from the source code.