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QtMmlWidget Class Reference

The QtMmlWidget class renders mathematical formulas written in MathML 2.0. More...

 #include <QtMmlWidget>

Inherits QFrame.

• List of all members, including inherited members

Public Types

• enum MmlFont { NormalFont, FrakturFont, SansSerifFont, ScriptFont, MonospaceFont, DoublestruckFont }

Public Functions

• QtMmlWidget ( QWidget * parent = 0 )
• ~QtMmlWidget ()
• int baseFontPointSize () const
• void clear ()
• bool drawFrames () const
• QString fontName ( MmlFont type ) const
• void setBaseFontPointSize ( int size )
• bool setContent ( const QString & text, QString * errorMsg = 0, int * errorLine = 0, int * errorColumn = 0 )
• void setDrawFrames ( bool b )
• void setFontName ( MmlFont type, const QString & name )
• virtual QSize sizeHint () const

• 13 public functions inherited from QFrame
• 207 public functions inherited from QWidget
• 12 public functions inherited from QPaintDevice
• 29 public functions inherited from QObject

Additional Inherited Members

• 6 properties inherited from QFrame
• 57 properties inherited from QWidget
• 1 property inherited from QObject
• 19 public slots inherited from QWidget
• 1 public slot inherited from QObject
• 1 signal inherited from QWidget
• 1 signal inherited from QObject
• 1 public type inherited from QObject
• 4 static public members inherited from QWidget
• 4 static public members inherited from QObject
• 37 protected functions inherited from QWidget
• 1 protected function inherited from QPaintDevice
• 7 protected functions inherited from QObject
• 1 protected slot inherited from QWidget
• 1 protected type inherited from QPaintDevice
• 2 protected variables inherited from QObject

Detailed Description

The QtMmlWidget class renders mathematical formulas written in MathML 2.0.

QtMmlWidget implements the Presentation Markup subset of the MathML 2.0 specification, with a few exceptions.

 QtMmlWidget *mmlWidget = new QtMmlWidget(this);
 QString errorMsg;
 int errorLine;
 int errorColumn;
 bool ok = mmlWidget->setContent(mmlText, &errorMsg, &errorLine, &errorColumn);
 if (!ok) {
     qWarning("MathML error: %s, Line: %d, Column: %d",
              errorMsg.latin1(), errorLine, errorColumn);
 }

Member Type Documentation

enum QtMmlWidget::MmlFont

This ennumerated type is used in fontName() and setFontName() to specify a font type.

See also setFontName(), fontName(), setBaseFontPointSize(), and baseFontPointSize().

Member Function Documentation

QtMmlWidget::QtMmlWidget ( QWidget * parent = 0 )

Constructs a QtMmlWidget object. The parent parameter is passed to QFrame's constructor.

QtMmlWidget::~QtMmlWidget ()

Destructs a QtMmlWidget object.

int QtMmlWidget::baseFontPointSize () const

Returns the point size of the font used to render expressions whose scriptlevel is 0.

See also setBaseFontPointSize(), fontName(), and setFontName().

void QtMmlWidget::clear ()

Clears the contents of this widget.

bool QtMmlWidget::drawFrames () const

Returns true if each expression should be drawn with a red bounding rectangle; otherwise returns false. This is mostly useful for debugging MathML expressions.

See also setDrawFrames().

QString QtMmlWidget::fontName ( MmlFont type ) const

Returns the name of the font used to render the font type.

See also setFontName(), setBaseFontPointSize(), baseFontPointSize(), and QtMmlWidget::MmlFont.

void QtMmlWidget::setBaseFontPointSize ( int size )

Sets the point size of the font used to render expressions whose scriptlevel is 0.

See also baseFontPointSize(), fontName(), and setFontName().

bool QtMmlWidget::setContent ( const QString & text, QString * errorMsg = 0, int * errorLine = 0, int * errorColumn = 0 )

Sets the MathML expression to be rendered. The expression is given in the string text. If the expression is successfully parsed, this method returns true; otherwise it returns false. If an error occured errorMsg is set to a diagnostic message, while errorLine and errorColumn contain the location of the error. Any of errorMsg, errorLine and errorColumn may be 0, in which case they are not set.

text should contain MathML 2.0 presentation markup elements enclosed in a <math> element.

void QtMmlWidget::setDrawFrames ( bool b )

If b is true, draws a red bounding rectangle around each expression; if b is false, no such rectangle is drawn. This is mostly useful for debugging MathML expressions.

See also drawFrames().

void QtMmlWidget::setFontName ( MmlFont type, const QString & name )

Sets the name of the font used to render the font type to name.

See also fontName(), setBaseFontPointSize(), baseFontPointSize(), and QtMmlWidget::MmlFont.

QSize QtMmlWidget::sizeHint () const   [virtual]

Returns the size of the formula in pixels.

Reimplemented from QWidget.