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QSGraphicalData Class Reference

Data object which holds a set of graphics attributes such as fonts, fills, line styles etc. More...

#include <qsgraphicaldata.h>

Inheritance diagram for QSGraphicalData:

Signals
void	sigTitleChanged (const QString &newTitle)
Public Methods
	QSGraphicalData (QObject parent=0, QSGraphicalData parentObject=0, const char *name=0)
virtual	~QSGraphicalData ()
void	setTitle (const QString &title)
QString	title () const
virtual bool	setMatrix (int channel, QSMatrix *m)
virtual QSMatrix *	matrix (int channel) const
virtual void	deleteMatrix (int channel)
virtual QSMatrix *	takeMatrix (int channel, QSMatrix *newMatrix)
int	channelCount () const
double	value (int row, int col, int channel)
int	matrixRows (int channel) const
int	matrixCols (int channel) const
bool	isChannel (int channel) const
void	setFont (int e, const QSGFont &font)
void	setFill (int e, const QSGFill &fill)
void	setLine (int e, const QSGLine &line)
void	setPoint (int e, const QSGPoint &point)
QSGFont	font (int e) const
QSGFill	fill (int e) const
QSGLine	line (int e) const
QSGPoint	point (int e) const
int	fontCount () const
int	fillCount () const
int	lineCount () const
int	pointCount () const
virtual void	loadStateFromStream (QDataStream &stream, QSObjectFactory *factory)
virtual void	saveStateToStream (QDataStream &stream, QSObjectFactory *factory)
Protected Methods
void	initChannelTable (int channels_num)
void	initAttributeTables (int fonts_num, int fills_num, int lines_num, int points_num)
virtual void	parametersChanging ()
virtual void	parametersChanged ()
double	_log (double value, double logBase=10.0)
Static Protected Methods
QSGFont	fontFromData (QSMatrix *source, int row, int start_col, const QSGFont &default_value)
QSGFill	fillFromData (QSMatrix *source, int row, int start_col, const QSGFill &default_value)
QSGLine	lineFromData (QSMatrix *source, int row, int start_col, const QSGLine &default_value)
QSGPoint	pointFromData (QSMatrix *source, int row, int start_col, const QSGPoint &default_value)
QSGArrow	arrowFromData (QSMatrix *source, int row, int start_col, const QSGArrow &default_value)
QSGColor	colorFromData (QSMatrix *source, int row, int start_col, const QSGColor &default_value)
ColumnType	fontColumnFormat (int column)
ColumnType	fillColumnFormat (int column)
ColumnType	lineColumnFormat (int column)
ColumnType	pointColumnFormat (int column)
ColumnType	arrowColumnFormat (int column)
ColumnType	colorColumnFormat (int column)
Protected Attributes
QSGraphicalData::settings_t	m_settings
QSMatrix **	m_channels
int	m_channels_count
QString	m_title_str
QSGraphicalData *	m_parent_base_object

Detailed Description

Data object which holds a set of graphics attributes such as fonts, fills, line styles etc.

See new functions : setFill(), setFont(), setLine(), setPoint(). Contains also implementation of the QSData interface.

Author:: Kamil Dobkowski

Constructor & Destructor Documentation

QSGraphicalData::QSGraphicalData ( QObject * parent = 0,

QSGraphicalData * parentObject = 0,

const char * name = 0

)

Constructor

virtual QSGraphicalData::~QSGraphicalData ( ) [virtual]

Destructor.

Member Function Documentation

double QSGraphicalData::_log ( double value,

double logBase = 10.0

) [inline, protected]

Calculates a logarithm of value 'value'. Fix it to remember log10(logBase);

ColumnType QSGraphicalData::arrowColumnFormat ( int column ) [static, protected]

Standard column types for arrow. See arrowFromData().

QSGArrow QSGraphicalData::arrowFromData ( QSMatrix * source,

int row,

int start_col,

const QSGArrow & default_value

) [static, protected]

Reads an arrow style from matrix. Row format is [ style, size ]

int QSGraphicalData::channelCount ( ) const [inline, virtual]

Returns the total number of channels.
Reimplemented from QSData.

ColumnType QSGraphicalData::colorColumnFormat ( int column ) [static, protected]

Standard column types for font. See colorFromData().

QSGColor QSGraphicalData::colorFromData ( QSMatrix * source,

int row,

int start_col,

const QSGColor & default_value

) [static, protected]

Reads a color from matrix. Row format is [ red, green, blue, alpha ]

virtual void QSGraphicalData::deleteMatrix ( int channel ) [virtual]

Deletes the choosen matrix.
Reimplemented from QSData.

QSGFill QSGraphicalData::fill ( int e ) const [inline]

Returns a fill style of the given element

ColumnType QSGraphicalData::fillColumnFormat ( int column ) [static, protected]

Standard column types for font. See fillFromData().

int QSGraphicalData::fillCount ( ) const [inline]

Returns the total number of fill elements.

QSGFill QSGraphicalData::fillFromData ( QSMatrix * source,

int row,

int start_col,

const QSGFill & default_value

) [static, protected]

Reads fill style from matrix. Row format is [ style, red, green, blue, alpha ]

QSGFont QSGraphicalData::font ( int e ) const [inline]

Returns a font style of the given element

ColumnType QSGraphicalData::fontColumnFormat ( int column ) [static, protected]

Standard column types for font. See fontFromData().

int QSGraphicalData::fontCount ( ) const [inline]

Returns the total number of font elements.

QSGFont QSGraphicalData::fontFromData ( QSMatrix * source,

int row,

int start_col,

const QSGFont & default_value

) [static, protected]

Reads font from matrix. Row formst is [ family(text), size, bold, italic, red, green. blue, alpha ) ]

void QSGraphicalData::initAttributeTables ( int fonts_num,

int fills_num,

int lines_num,

int points_num

) [protected]

Allocates memory for fonts, fills, ... tables.

void QSGraphicalData::initChannelTable ( int channels_num ) [protected]

Allocates memory for channels

bool QSGraphicalData::isChannel ( int channel ) const

Returns 'true' if matrix at the given channel exist.

QSGLine QSGraphicalData::line ( int e ) const [inline]

Returns a point style of the given element

ColumnType QSGraphicalData::lineColumnFormat ( int column ) [static, protected]

Standard column types for font. See lineFromData().

int QSGraphicalData::lineCount ( ) const [inline]

Returns the total number of line elements.

QSGLine QSGraphicalData::lineFromData ( QSMatrix * source,

int row,

int start_col,

const QSGLine & default_value

) [static, protected]

Reads a line style from matrix. Row format is [ style, width, red, green, blue, alpha ]

virtual void QSGraphicalData::loadStateFromStream ( QDataStream & stream,

QSObjectFactory * factory

) [virtual]

Restores all graphics atributes
Reimplemented from QSData.
Reimplemented in QSAxes.

virtual QSMatrix* QSGraphicalData::matrix ( int channel ) const [virtual]

Returns matrix 'channel' if any, or NULL. Notice that you should not operate on it during drawing ( see QSAxes::state ) because this affects internal iterator positions in those matrices.
Reimplemented from QSData.

int QSGraphicalData::matrixCols ( int channel ) const [inline]

Returs the width of the choosen matrix or 0 if it is not set.

int QSGraphicalData::matrixRows ( int channel ) const [inline]

Returs the height of the choosen matrix or 0 if it is not set.

virtual void QSGraphicalData::parametersChanged ( ) [protected, virtual]

This function is called after any parameter change. This function can be reimplemented but unfortunately there is no information, which parameter has changed. It informs derived classes that they should repaint themselves. Default implementation calls parent->parametersChanging();
Reimplemented in QSAxes.

virtual void QSGraphicalData::parametersChanging ( ) [protected, virtual]

This function is called before any parameter change. This function can be reimplemented but unfortunately there is no information, which parameter has changed. It informs derived classes to stop the drawing process. Default implementation calls parent->paremerersChanging()
Reimplemented in QSAxes.

QSGPoint QSGraphicalData::point ( int e ) const [inline]

Returns a point style of the given element

ColumnType QSGraphicalData::pointColumnFormat ( int column ) [static, protected]

Standard column types for point. See pointFromData().

int QSGraphicalData::pointCount ( ) const [inline]

Returns the total number of points elements.

QSGPoint QSGraphicalData::pointFromData ( QSMatrix * source,

int row,

int start_col,

const QSGPoint & default_value

) [static, protected]

Reads a point form matrix. Row format is [ style, fill, size, red, green, blue, alpha ]

virtual void QSGraphicalData::saveStateToStream ( QDataStream & stream,

QSObjectFactory * factory

) [virtual]

Saves all graphics attributes
Reimplemented from QSData.
Reimplemented in QSAxes.

void QSGraphicalData::setFill ( int e,

const QSGFill & fill

)

Sets the fill for the 'e' element.

void QSGraphicalData::setFont ( int e,

const QSGFont & font

)

Sets the font for the 'e' element.

void QSGraphicalData::setLine ( int e,

const QSGLine & line

)

Set a line style for the 'e' element.

virtual bool QSGraphicalData::setMatrix ( int channel,

QSMatrix * m

) [virtual]

Sets a new matrix as the given channel in the plot.
Reimplemented from QSData.

void QSGraphicalData::setPoint ( int e,

const QSGPoint & point

)

Set a point style for the 'e' element.

void QSGraphicalData::setTitle ( const QString & title )

Sets a plot title.

void QSGraphicalData::sigTitleChanged ( const QString & newTitle ) [signal]

Title has changed.

virtual QSMatrix* QSGraphicalData::takeMatrix ( int channel,

QSMatrix * newMatrix

) [virtual]

Return matrix and sets data to NULL.
Reimplemented from QSData.

QString QSGraphicalData::title ( ) const [inline]

Returns title.

double QSGraphicalData::value ( int row,

int col,

int channel

) [inline]

Returns value at the position (x, y) from the channel 'channel'. You have to pass correct arguments to this function because it does not perform any channel or range checking.

Member Data Documentation

QSMatrix** QSGraphicalData::m_channels [protected]

list of matrices

struct QSGraphicalData::settings_t QSGraphicalData::m_settings [protected]

fonts, fills and lines styles

The documentation for this class was generated from the following file:

qsgraphicaldata.h

Generated on Mon Mar 18 19:16:48 2002 for KMatplot library by

QSGraphicalData Class Reference

Signals

Public Methods

Protected Methods

Static Protected Methods

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation