QwtScale

NAME

SYNOPSIS

Detailed Description

A Widget which contains a scale.

This Widget can be used to decorate composite widgets with a scale.

Definition at line 34 of file qwt_scale.h.  

Public Types

enum Position { Left, Right, Top, Bottom }
 

Public Member Functions

QwtScale (QWidget *parent=0, const char *name=0)

QwtScale (Position, QWidget *parent=0, const char *name=0)

virtual ~QwtScale ()

void setTitle (const QString &title)

const QString title () const

void setTitleColor (const QColor &c)

const QColor titleColor () const

void setTitleFont (const QFont &f)

const QFont titleFont () const

void setTitleAlignment (int flags)

int titleAlignment () const

void setBorderDist (int start, int end)

int startBorderDist () const

int endBorderDist () const

void minBorderDist (int &start, int &end) const

void setBaselineDist (int bd)

int baseLineDist () const

void setTitleDist (int td)

int titleDist () const

void setScaleDiv (const QwtScaleDiv &sd)

void setScaleDraw (QwtScaleDraw *)

const QwtScaleDraw * scaleDraw () const

void setLabelFormat (char f, int prec, int fieldWidth)

void labelFormat (char &f, int &prec, int &fieldWidth) const

void setLabelAlignment (int align)

void setLabelRotation (double rotation)

virtual QSize sizeHint () const

virtual QSize minimumSizeHint () const

virtual QSizePolicy sizePolicy () const

int titleHeightForWidth (int width) const

int dimForLength (int length, const QFontMetrics &scaleFontMetrics) const

void drawTitle (QPainter *painter, QwtScaleDraw::Orientation o, const QRect &rect) const

void setPosition (Position o)

Position position () const
 

Protected Member Functions

void draw (QPainter *p) const

void paintEvent (QPaintEvent *e)

void resizeEvent (QResizeEvent *e)

void scaleChange ()

void fontChange (const QFont &oldfont)

void layoutScale (bool update=TRUE)
 

Member Enumeration Documentation

enum QwtScale::Position

Position of the scale

See also:

QwtScale::QwtScale

Definition at line 49 of file qwt_scale.h.

Referenced by position().  

Constructor & Destructor Documentation

QwtScale::QwtScale (QWidget * parent = 0, const char * name = 0)

Create a scale with the position QwtScale::Left.

Parameters:

parent .br name passed to QWidget's CTOR

Warning:

Workaround of a designer problem

Definition at line 27 of file qwt_scale.cpp.  

QwtScale::QwtScale (QwtScale::Position pos, QWidget * parent = 0, const char * name = 0)

Constructor.

Parameters:

pos Position. Must be one of QwtScale::Left, QwtScale::Right, QwtScale::Bottom, or QwtScale::Top
parent
name passed to QWidget's CTOR

Definition at line 41 of file qwt_scale.cpp.  

QwtScale::~QwtScale () [virtual]

Destructor.

Definition at line 48 of file qwt_scale.cpp.  

Member Function Documentation

int QwtScale::baseLineDist () const

Returns:

base line distance

See also:

QwtScale::setBaselineDist

Definition at line 396 of file qwt_scale.cpp.

Referenced by QwtPlotLayout::minimumSizeHint(), and QwtPlot::print().  

int QwtScale::dimForLength (int length, const QFontMetrics & scaleFontMetrics) const

Find the minimum dimension for a given length. dim is the height, length the width seen in direction of the title.

Parameters:

length width for horizontal, height for vertical scales
scaleFontMetrics Font metrics of the scale

Returns:

height for horizontal, width for vertical scales

Definition at line 686 of file qwt_scale.cpp.

References QwtScaleDraw::minHeight(), QwtScaleDraw::minWidth(), QwtScaleDraw::orientation(), QwtText::text(), and titleHeightForWidth().

Referenced by minimumSizeHint().  

void QwtScale::draw (QPainter * p) const [protected]

draw the scale

Definition at line 426 of file qwt_scale.cpp.

References QwtScaleDraw::draw(), drawTitle(), and QwtScaleDraw::orientation().

Referenced by paintEvent().  

void QwtScale::drawTitle (QPainter * painter, QwtScaleDraw::Orientation o, const QRect & rect) const

Rotate and paint a title according to its position into a given rectangle.

Parameters:

painter Painter
o Orientation
rect Bounding rectangle

Definition at line 529 of file qwt_scale.cpp.

References QwtText::alignment(), QwtText::draw(), and QwtText::setAlignment().

Referenced by draw(), and QwtPlot::printScale().  

int QwtScale::endBorderDist () const

Returns:

end border distance

See also:

QwtScale::setBorderDist

Definition at line 387 of file qwt_scale.cpp.

Referenced by QwtPlot::canvasMap().  

void QwtScale::fontChange (const QFont & oldFont) [protected]

Notify a change of the font.

This virtual function may be overloaded by derived widgets. The default implementation resizes the scale and repaints the widget.

Parameters:

oldFont Previous font

Definition at line 732 of file qwt_scale.cpp.

References layoutScale().  

void QwtScale::labelFormat (char & f, int & prec, int & fieldwidth) const

Format character and precision have the same meaning as for the QString class.

Return values:

f format character
prec precision
fieldwidth minimum fieldwidth

Returns:

the number format for the major scale labels

See also:

QwtScale::setLabelFormat, QString::sprintf in the Qt manual

Definition at line 324 of file qwt_scale.cpp.

References QwtScaleDraw::labelFormat().

Referenced by QwtPlot::axisLabelFormat().  

void QwtScale::layoutScale (bool update = TRUE) [protected]

Recalculate the scale's geometry and layout based on.

Definition at line 468 of file qwt_scale.cpp.

References QwtScaleDraw::maxHeight(), QwtScaleDraw::maxWidth(), minBorderDist(), QwtScaleDraw::orientation(), and QwtScaleDraw::setGeometry().

Referenced by fontChange(), resizeEvent(), scaleChange(), setBaselineDist(), setBorderDist(), setLabelAlignment(), setLabelFormat(), setLabelRotation(), setPosition(), setScaleDiv(), setScaleDraw(), setTitle(), setTitleAlignment(), setTitleDist(), and setTitleFont().  

void QwtScale::minBorderDist (int & start, int & end) const

Determine the minimum Border distances.

This member function returns the minimum distance of the scale's endpoints from the widget borders which is required for the mark labels to fit into the widget.

Warning:

•

The minimum border distance depends on the font.

See also:

QwtScale::setBorderDist()

Definition at line 718 of file qwt_scale.cpp.

References QwtScaleDraw::minBorderDist().

Referenced by QwtPlotPrintFilter::apply(), layoutScale(), minimumSizeHint(), QwtPlotLayout::minimumSizeHint(), QwtPlotPrintFilter::reset(), and QwtPlot::updateAxes().  

QSize QwtScale::minimumSizeHint () const [virtual]

Returns:

a minimum size hint

Definition at line 628 of file qwt_scale.cpp.

References dimForLength(), minBorderDist(), QwtScaleDraw::minHeight(), QwtScaleDraw::minWidth(), and QwtScaleDraw::orientation().

Referenced by QwtPlotLayout::minimumSizeHint(), sizeHint(), and QwtPlot::sizeHint().  

void QwtScale::paintEvent (QPaintEvent * e) [protected]

paintEvent

Definition at line 413 of file qwt_scale.cpp.

References draw(), and QwtPaintBuffer::painter().  

QwtScale::Position QwtScale::position () const

Returns:

position

See also:

QwtScale::setPosition

Definition at line 144 of file qwt_scale.cpp.

References QwtScaleDraw::orientation(), Position, and scaleDraw().  

void QwtScale::resizeEvent (QResizeEvent * e) [protected]

resizeEvent

Definition at line 458 of file qwt_scale.cpp.

References layoutScale().  

void QwtScale::scaleChange () [protected]

Notify a change of the scale.

This virtual function can be overloaded by derived classes. The default implementation updates the geometry and repaints the widget. Definition at line 591 of file qwt_scale.cpp.

References layoutScale().  

const QwtScaleDraw * QwtScale::scaleDraw () const

scaleDraw of this scale

See also:

QwtScaleDraw::setScaleDraw

Definition at line 333 of file qwt_scale.cpp.

Referenced by QwtPlot::axisScaleDraw(), QwtPlotLayout::minimumSizeHint(), position(), QwtPlot::printScale(), and QwtPlot::sizeHint().  

void QwtScale::setBaselineDist (int bd)

Specify the border distance of the scale's base line.

Parameters:

bd border distance of the baseline

See also:

QwtScale::baseLineDist

Definition at line 188 of file qwt_scale.cpp.

References layoutScale().

Referenced by QwtPlot::print().  

void QwtScale::setBorderDist (int dist1, int dist2)

Specify distances of the scale's endpoints from the widget's borders. The actual borders will never be less than minimum border distance.

Parameters:

dist1 Left or top Distance
dist2 Right or bottom distance

See also:

QwtScale::borderDist

Definition at line 173 of file qwt_scale.cpp.

References layoutScale().

Referenced by QwtPlotPrintFilter::apply(), QwtPlotPrintFilter::reset(), and QwtPlot::updateAxes().  

void QwtScale::setLabelAlignment (int align)

Change the alignment for the labels.

See QwtScaleDraw::setLabelAlignment().

See also:

QwtScaleDraw::setLabelAlignment(), QwtScale::setLabelRotation()

Definition at line 278 of file qwt_scale.cpp.

References layoutScale(), and QwtScaleDraw::setLabelAlignment().

Referenced by QwtPlot::setAxisLabelAlignment().  

void QwtScale::setLabelFormat (char f, int prec, int fieldwidth)

Set the number format for the major scale labels.

Format character and precision have the same meaning as for the QString class.

Parameters:

f format character
prec precision
fieldwidth minimum fieldwidth

See also:

QwtScale::labelFormat, QString::sprintf in the Qt manual

Definition at line 265 of file qwt_scale.cpp.

References layoutScale(), and QwtScaleDraw::setLabelFormat().

Referenced by QwtPlot::setAxisLabelFormat().  

void QwtScale::setLabelRotation (double rotation)

Change the rotation for the labels. See QwtScaleDraw::setLabelRotation().

See also:

QwtScaleDraw::setLabelRotation(), QwtScale::setLabelAlignment()

Definition at line 289 of file qwt_scale.cpp.

References layoutScale(), and QwtScaleDraw::setLabelRotation().

Referenced by QwtPlot::setAxisLabelRotation().  

void QwtScale::setPosition (Position pos)

Assign a position.

Parameters:

pos new position

See also:

QwtScale::position

Definition at line 113 of file qwt_scale.cpp.

References layoutScale(), and QwtScaleDraw::setGeometry().  

void QwtScale::setScaleDiv (const QwtScaleDiv & sd)

Assign a scale division.

The scale division determines where to set the tick marks.

Parameters:

sd Scale Division

See also:

For more information about scale divisions, see QwtScaleDiv.

Definition at line 746 of file qwt_scale.cpp.

References layoutScale(), QwtScaleDraw::scaleDiv(), and QwtScaleDraw::setScale().

Referenced by QwtPlot::updateAxes().  

void QwtScale::setScaleDraw (QwtScaleDraw * sd)

Set a scale draw sd has to be created with new and will be deleted in QwtScale::~QwtScale or the next call of QwtScale::setScaleDraw.

Definition at line 300 of file qwt_scale.cpp.

References layoutScale().

Referenced by QwtPlot::setAxisScaleDraw().  

void QwtScale::setTitle (const QString & text)

Give title new text contents.

Parameters:

text New text

See also:

QwtScale::title

Definition at line 94 of file qwt_scale.cpp.

References QwtText::alignment(), QwtText::color(), QwtText::font(), layoutScale(), QwtText::makeText(), and title().

Referenced by QwtPlot::setAxisTitle().  

void QwtScale::setTitleAlignment (int flags)

Change the title alignment.

Parameters:

flags see Qt::AlignmentFlags. flags are interpreted in direction of the label, AlignTop, AlignBottom can't be set as the title will always be aligned to the scale.

See also:

QwtScale::titleAlignment, Qt::AlignmentFlags

Definition at line 247 of file qwt_scale.cpp.

References layoutScale(), and QwtText::setAlignment().

Referenced by QwtPlot::setAxisTitleAlignment().  

void QwtScale::setTitleColor (const QColor & c)

Change the title color.

Parameters:

c new title color

See also:

QwtScale::titleColor

Definition at line 233 of file qwt_scale.cpp.

References QwtText::setColor().

Referenced by QwtPlotPrintFilter::apply(), and QwtPlotPrintFilter::reset().  

void QwtScale::setTitleDist (int td)

Specify the distance between scale and title.

Parameters:

td Title distance

See also:

QwtScale::titleDist

Definition at line 203 of file qwt_scale.cpp.

References layoutScale().  

void QwtScale::setTitleFont (const QFont & f)

Change the title font.

Parameters:

f new font

See also:

QwtScale::title

Definition at line 219 of file qwt_scale.cpp.

References QwtText::font(), layoutScale(), and QwtText::setFont().

Referenced by QwtPlotPrintFilter::apply(), QwtPlotPrintFilter::reset(), and QwtPlot::setAxisTitleFont().  

QSize QwtScale::sizeHint () const [virtual]

Returns:

a size hint

Definition at line 620 of file qwt_scale.cpp.

References minimumSizeHint().  

QSizePolicy QwtScale::sizePolicy () const [virtual]

Returns:

Fixed/MinimumExpanding for vertical, MinimumExpanding/Fixed for horizontal scales.

Definition at line 600 of file qwt_scale.cpp.

References QwtScaleDraw::orientation().  

int QwtScale::startBorderDist () const

Returns:

start border distance

See also:

QwtScale::setBorderDist

Definition at line 378 of file qwt_scale.cpp.

Referenced by QwtPlot::canvasMap(), and QwtPlot::print().  

const QString QwtScale::title () const

Returns:

title

See also:

QwtScale::setTitle

Definition at line 369 of file qwt_scale.cpp.

References QwtText::text().

Referenced by QwtPlot::axisTitle(), and setTitle().  

int QwtScale::titleAlignment () const

Returns:

alignment

See also:

QwtScale::setTitleAlignment, Qt::AlignmentFlags

Definition at line 342 of file qwt_scale.cpp.

References QwtText::alignment().

Referenced by QwtPlot::axisTitleAlignment().  

const QColor QwtScale::titleColor () const

Returns:

title color

See also:

QwtScale::setTitleColor

Definition at line 360 of file qwt_scale.cpp.

References QwtText::color().

Referenced by QwtPlotPrintFilter::apply().  

int QwtScale::titleDist () const

Returns:

distance between scale and title

See also:

QwtScale::setBaselineDist

Definition at line 405 of file qwt_scale.cpp.  

const QFont QwtScale::titleFont () const

Returns:

title font

See also:

QwtScale::setTitleFont

Definition at line 351 of file qwt_scale.cpp.

References QwtText::font().

Referenced by QwtPlotPrintFilter::apply(), and QwtPlot::axisTitleFont().  

int QwtScale::titleHeightForWidth (int width) const

Find the height of the title for a given width.

Parameters:

width Width

Returns:

height Height

Definition at line 672 of file qwt_scale.cpp.

References QwtText::heightForWidth().

Referenced by dimForLength().

Author

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

Index

NAME

SYNOPSIS

Detailed Description

Public Types

Public Member Functions

Protected Member Functions

Member Enumeration Documentation

enum QwtScale::Position

Constructor & Destructor Documentation

QwtScale::QwtScale (QWidget * parent = 0, const char * name = 0)

QwtScale::QwtScale (QwtScale::Position pos, QWidget * parent = 0, const char * name = 0)

QwtScale::~QwtScale () [virtual]

Member Function Documentation

int QwtScale::baseLineDist () const

int QwtScale::dimForLength (int length, const QFontMetrics & scaleFontMetrics) const

void QwtScale::draw (QPainter * p) const [protected]

void QwtScale::drawTitle (QPainter * painter, QwtScaleDraw::Orientation o, const QRect & rect) const

int QwtScale::endBorderDist () const

void QwtScale::fontChange (const QFont & oldFont) [protected]

void QwtScale::labelFormat (char & f, int & prec, int & fieldwidth) const

void QwtScale::layoutScale (bool update = TRUE) [protected]

void QwtScale::minBorderDist (int & start, int & end) const

QSize QwtScale::minimumSizeHint () const [virtual]

void QwtScale::paintEvent (QPaintEvent * e) [protected]

QwtScale::Position QwtScale::position () const

void QwtScale::resizeEvent (QResizeEvent * e) [protected]

void QwtScale::scaleChange () [protected]

const QwtScaleDraw * QwtScale::scaleDraw () const

void QwtScale::setBaselineDist (int bd)

void QwtScale::setBorderDist (int dist1, int dist2)

void QwtScale::setLabelAlignment (int align)

void QwtScale::setLabelFormat (char f, int prec, int fieldwidth)

void QwtScale::setLabelRotation (double rotation)

void QwtScale::setPosition (Position pos)

void QwtScale::setScaleDiv (const QwtScaleDiv & sd)

void QwtScale::setScaleDraw (QwtScaleDraw * sd)

void QwtScale::setTitle (const QString & text)

void QwtScale::setTitleAlignment (int flags)

void QwtScale::setTitleColor (const QColor & c)

void QwtScale::setTitleDist (int td)

void QwtScale::setTitleFont (const QFont & f)

QSize QwtScale::sizeHint () const [virtual]

QSizePolicy QwtScale::sizePolicy () const [virtual]

int QwtScale::startBorderDist () const

const QString QwtScale::title () const

int QwtScale::titleAlignment () const

const QColor QwtScale::titleColor () const

int QwtScale::titleDist () const

const QFont QwtScale::titleFont () const

int QwtScale::titleHeightForWidth (int width) const

Author