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QwtText

QwtText

Section: Qwt User's Guide (3) Updated: 16 Nov 2004
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NAME

QwtText -  

SYNOPSIS


Inherited by QwtPlainText, and QwtRichText.

 

Detailed Description

A virtual class to draw text.

QwtText is an interface class for drawing plain and rich text. It provides also an interface for text classes that understand other text description languages such as LaTeX or LyX.

Warning:

Rich text in Qt-2.3.x does not understand sub- and super-scripts. Qt-3.x.x does a better job in rendering mathematics.

Definition at line 35 of file qwt_text.h.  

Public Member Functions


virtual ~QwtText ()

virtual void setText (const QString &)

QString text () const

bool isNull () const

bool isEmpty () const

virtual void setFont (const QFont &)

QFont font () const

QFontMetrics fontMetrics () const

virtual void setAlignment (int align)

int alignment () const

virtual void setColor (const QColor &)

QColor color () const

virtual void setRectPen (const QPen &)

QPen rectPen () const

virtual void setRectBrush (const QBrush &)

QBrush rectBrush () const

virtual int heightForWidth (int width) const =0

virtual QRect boundingRect (QPainter *painter=0) const =0

virtual void draw (QPainter *painter, const QRect &rect) const =0

virtual QwtText * clone () const =0
 

Static Public Member Functions


QwtText * makeText (const QString &, Qt::TextFormat, int align, const QFont &, const QColor &color=QColor(), const QPen &pen=QPen(Qt::NoPen), const QBrush &brush=QBrush(Qt::NoBrush))

QwtText * makeText (const QString &, int align, const QFont &, const QColor &color=QColor(), const QPen &pen=QPen(Qt::NoPen), const QBrush &brush=QBrush(Qt::NoBrush))

void setDefaultFormat (Qt::TextFormat)

Qt::TextFormat defaultFormat ()
 

Protected Member Functions


QwtText (const QString &text, const QFont &, int align, const QColor &, const QPen &pen=QPen(Qt::NoPen), const QBrush &brush=QBrush(Qt::NoBrush))
 

Constructor & Destructor Documentation

 

QwtText::~QwtText () [virtual]

Destructor.

Definition at line 44 of file qwt_text.cpp.  

QwtText::QwtText (const QString & text, const QFont & font, int align, const QColor & color, const QPen & pen = QPen(Qt::NoPen), const QBrush & brush = QBrush(Qt::NoBrush)) [protected]

Constructor.

Parameters:

text Text
font Font
align Alignment flags
color Color
pen Pen
brush Brush

Definition at line 31 of file qwt_text.cpp.  

Member Function Documentation

 

int QwtText::alignment () const

Get the alignment flags.

Definition at line 151 of file qwt_text.cpp.

Referenced by QwtRichText::boundingRect(), QwtPlainText::boundingRect(), QwtRichText::clone(), QwtPlainText::clone(), QwtRichText::draw(), QwtPlainText::draw(), QwtScale::drawTitle(), QwtPlainText::heightForWidth(), QwtMarker::setLabel(), QwtRichText::setText(), QwtScale::setTitle(), and QwtScale::titleAlignment().  

virtual QRect QwtText::boundingRect (QPainter * painter = 0) const [pure virtual]

Returns the bounding rectangle.

The bounding rectangle is calculated with respect to (0, 0). The left and top border depend on the alignment flags:

the left border is at -width, -width/2 or 0 for Qt::AlignRight, Qt::AlignHCenter or Qt::AlignLeft respectively
the top border is at 0, -height/2 or -height for Qt::AlignTop, Qt::AlignVCenter or Qt::AlignBottom respectively

Use for instance QRect::moveBy(x,y), before drawing the text into the rectangle.

Implemented in QwtPlainText, and QwtRichText.

Referenced by QwtMarker::draw(), QwtPicker::drawCursorLabel(), and QwtPushButton::heightForWidth().  

virtual QwtText* QwtText::clone () const [pure virtual]

Create a clone

Implemented in QwtPlainText, and QwtRichText.

Referenced by QwtMarker::operator=(), and QwtMarker::QwtMarker().  

QColor QwtText::color () const

Return the color.

Definition at line 163 of file qwt_text.cpp.

Referenced by QwtRichText::clone(), QwtPlainText::clone(), QwtRichText::draw(), QwtPlainText::draw(), QwtMarker::labelColor(), QwtMarker::labelPen(), QwtMarker::setLabel(), QwtMarker::setLabelColor(), QwtMarker::setLabelPen(), QwtMarker::setLabelText(), QwtScale::setTitle(), and QwtScale::titleColor().  

Qt::TextFormat QwtText::defaultFormat () [static]

Return default format for the QwtText factory.

Definition at line 105 of file qwt_text.cpp.  

virtual void QwtText::draw (QPainter * painter, const QRect & rect) const [pure virtual]

Draw the text in a clipping rectangle.

Parameters:

painter Painter
rect Clipping rectangle

Implemented in QwtPlainText, and QwtRichText.

Referenced by QwtMarker::draw(), QwtPicker::drawCursorLabel(), QwtLegendItem::drawItem(), QwtScale::drawTitle(), and QwtPlot::printTitle().  

QFont QwtText::font () const

Return the font.

Definition at line 130 of file qwt_text.cpp.

Referenced by QwtRichText::boundingRect(), QwtPlainText::boundingRect(), QwtRichText::clone(), QwtPlainText::clone(), QwtRichText::draw(), QwtPlainText::draw(), QwtMarker::font(), QwtRichText::heightForWidth(), QwtRichText::setAlignment(), QwtMarker::setFont(), QwtMarker::setLabel(), QwtMarker::setLabelText(), QwtRichText::setText(), QwtScale::setTitle(), QwtScale::setTitleFont(), and QwtScale::titleFont().  

QFontMetrics QwtText::fontMetrics () const

Return the font metrics.

Definition at line 136 of file qwt_text.cpp.

Referenced by QwtPlainText::boundingRect(), and QwtPlainText::heightForWidth().  

virtual int QwtText::heightForWidth (int width) const [pure virtual]

Find the height for a given width.

Parameters:

width Width

Returns:

height Height

Implemented in QwtPlainText, and QwtRichText.

Referenced by QwtPushButton::heightForWidth(), and QwtScale::titleHeightForWidth().  

QwtText * QwtText::makeText (const QString & text, int align, const QFont & font, const QColor & color = QColor(), const QPen & pen = QPen(Qt::NoPen), const QBrush & brush = QBrush(Qt::NoBrush)) [static]

Factory function for QwtText objects. Creates a text according to QwtText::defaultFormat()

Parameters:

text Contents of the text
align Or'd values of Qt::AlignmentFlags for drawing the text
font Font of the text
color Color of the text
pen Pen to draw the enclosing rectangle
brush Brush to draw the enclosing rectangle

Returns:

Pointer to a new QwtPlainText or QwtRichText object

See also:

QwtText::defaultFormat, QwtText::setDefaultFormat

Definition at line 61 of file qwt_text.cpp.

References makeText().  

QwtText * QwtText::makeText (const QString & text, Qt::TextFormat format, int align, const QFont & font, const QColor & color = QColor(), const QPen & pen = QPen(Qt::NoPen), const QBrush & brush = QBrush(Qt::NoBrush)) [static]

Factory function for QwtText objects.

Parameters:

text Contents of the text
format Format of the text
align Or'd values of Qt::AlignmentFlags for drawing the text
font Font of the text
color Color of the text
pen Pen to draw the enclosing rectangle
brush Brush to draw the enclosing rectangle

Returns:

Pointer to a new QwtPlainText or QwtRichText object

Definition at line 81 of file qwt_text.cpp.

Referenced by QwtPicker::drawCursorLabel(), QwtPushButton::heightForWidth(), makeText(), QwtPlot::printTitle(), QwtMarker::QwtMarker(), QwtMarker::setLabel(), QwtScale::setTitle(), QwtLegendLabel::titleText(), and QwtLegendButton::titleText().  

QBrush QwtText::rectBrush () const

Return the rectangle brush.

Definition at line 187 of file qwt_text.cpp.

Referenced by QwtRichText::clone(), QwtPlainText::clone(), QwtRichText::draw(), QwtPlainText::draw(), QwtMarker::setLabel(), and QwtMarker::setLabelText().  

QPen QwtText::rectPen () const

Return the rectangle pen.

Definition at line 175 of file qwt_text.cpp.

Referenced by QwtRichText::clone(), QwtPlainText::clone(), QwtRichText::draw(), QwtPlainText::draw(), QwtMarker::setLabel(), and QwtMarker::setLabelText().  

void QwtText::setAlignment (int align) [virtual]

Set the alignment flags.

Parameters:

align Or'd Qt::Alignment flags

Reimplemented in QwtRichText.

Definition at line 145 of file qwt_text.cpp.

Referenced by QwtScale::drawTitle(), QwtRichText::setAlignment(), and QwtScale::setTitleAlignment().  

void QwtText::setColor (const QColor &) [virtual]

Set the color.

Definition at line 157 of file qwt_text.cpp.

Referenced by QwtMarker::setLabelColor(), QwtMarker::setLabelPen(), and QwtScale::setTitleColor().  

void QwtText::setDefaultFormat (Qt::TextFormat) [static]

Set the default format for the QwtText factory.

Definition at line 99 of file qwt_text.cpp.  

void QwtText::setFont (const QFont &) [virtual]

Set the font.

Reimplemented in QwtRichText.

Definition at line 123 of file qwt_text.cpp.

Referenced by QwtRichText::setFont(), QwtMarker::setFont(), and QwtScale::setTitleFont().  

void QwtText::setRectBrush (const QBrush &) [virtual]

Set the rectangle brush.

Definition at line 181 of file qwt_text.cpp.  

void QwtText::setRectPen (const QPen &) [virtual]

Set the rectangle pen.

Definition at line 169 of file qwt_text.cpp.  

void QwtText::setText (const QString &) [virtual]

Set the text.

Reimplemented in QwtRichText.

Definition at line 111 of file qwt_text.cpp.

Referenced by QwtRichText::setText().  

QString QwtText::text () const

Return the text.

Definition at line 117 of file qwt_text.cpp.

Referenced by QwtPlainText::boundingRect(), QwtRichText::clone(), QwtPlainText::clone(), QwtScale::dimForLength(), QwtPlainText::draw(), QwtMarker::draw(), QwtPlainText::heightForWidth(), QwtMarker::label(), QwtRichText::setAlignment(), QwtMarker::setLabel(), and QwtScale::title().

 

Author

Generated automatically by Doxygen for Qwt User's Guide from the source code.


 

Index

NAME
SYNOPSIS
Detailed Description
Public Member Functions
Static Public Member Functions
Protected Member Functions
Constructor & Destructor Documentation
QwtText::~QwtText () [virtual]
QwtText::QwtText (const QString & text, const QFont & font, int align, const QColor & color, const QPen & pen = QPen(Qt::NoPen), const QBrush & brush = QBrush(Qt::NoBrush)) [protected]
Member Function Documentation
int QwtText::alignment () const
virtual QRect QwtText::boundingRect (QPainter * painter = 0) const [pure virtual]
virtual QwtText* QwtText::clone () const [pure virtual]
QColor QwtText::color () const
Qt::TextFormat QwtText::defaultFormat () [static]
virtual void QwtText::draw (QPainter * painter, const QRect & rect) const [pure virtual]
QFont QwtText::font () const
QFontMetrics QwtText::fontMetrics () const
virtual int QwtText::heightForWidth (int width) const [pure virtual]
QwtText * QwtText::makeText (const QString & text, int align, const QFont & font, const QColor & color = QColor(), const QPen & pen = QPen(Qt::NoPen), const QBrush & brush = QBrush(Qt::NoBrush)) [static]
QwtText * QwtText::makeText (const QString & text, Qt::TextFormat format, int align, const QFont & font, const QColor & color = QColor(), const QPen & pen = QPen(Qt::NoPen), const QBrush & brush = QBrush(Qt::NoBrush)) [static]
QBrush QwtText::rectBrush () const
QPen QwtText::rectPen () const
void QwtText::setAlignment (int align) [virtual]
void QwtText::setColor (const QColor &) [virtual]
void QwtText::setDefaultFormat (Qt::TextFormat) [static]
void QwtText::setFont (const QFont &) [virtual]
void QwtText::setRectBrush (const QBrush &) [virtual]
void QwtText::setRectPen (const QPen &) [virtual]
void QwtText::setText (const QString &) [virtual]
QString QwtText::text () const
Author

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Time: 21:53:53 GMT, April 16, 2011