PlotMM::Scale Class Reference

Inheritance diagram for PlotMM::Scale:

[legend]Collaboration diagram for PlotMM::Scale:[legend]List of all members.

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Detailed Description

Class to draw a scale.

Public Member Functions
	Scale (Gtk::PositionType p, ScaleLabels *labels=0)
virtual	~Scale ()
void	set_position (Gtk::PositionType p)
Gtk::PositionType	position () const
void	set_ticklengths (int major, int minor)
int	major_ticklength () const
int	minor_ticklength () const
void	set_enabled (bool b)
bool	enabled () const
const DoubleIntMap &	scale_map () const
void	set_range (double l, double r)
void	set_range (double l, double r, bool lg)
void	set_autoscale (bool b)
bool	autoscale () const
void	begin_autoscale ()
void	autoscale (double min, double max)
void	end_autoscale ()
Public Attributes
SigC::Signal1< void, bool >	signal_enabled
Protected Member Functions
virtual void	on_realize ()
virtual bool	on_expose_event (GdkEventExpose *event)
virtual void	on_tick_change ()
virtual void	redraw ()=0
Protected Attributes
Glib::RefPtr< Gdk::GC >	gc_
Glib::RefPtr< Gdk::Window >	window_
Glib::RefPtr< Gdk::Window >	labwin_
ScaleLabels *	labels_
ScaleDiv	scaleDiv_
DoubleIntMap	scaleMap_

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Constructor & Destructor Documentation

Scale::Scale (  Gtk::PositionType  p, ScaleLabels *  l = 0 )

Constructor Upon construction, the position for the Scale must be declared. Optionally, a reference to a ScaleLabels instance can be provided to allow for automatic label generation. If the labels are actually shown can be set with ScaleLabels::set_enabled()

Scale::~Scale (   )  [virtual]

Destructor

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Member Function Documentation

void Scale::autoscale (  double  min, double  max )

Add autoscale information The given minimum and maximum value extend the current autoscale information. Call end_autoscale() when finished.

bool PlotMM::Scale::autoscale (   )  const

Query if autoscaling is enabled.

void Scale::begin_autoscale (   )

Reset autoscale information Before updating autoscale information with autoscale(min,max), begin_autoscale must be called to reset the old autoscale information. Call end_autoscale() when finished.

bool PlotMM::Scale::enabled (   )  const

Query if the scale is enabled (i.e. visible).

void Scale::end_autoscale (   )

Finish update of autoscale information After updating autoscale information with autoscale(min,max) this function sets the new range of values. See also: set_range

int PlotMM::Scale::major_ticklength (   )  const

Return the major ticklength.

int PlotMM::Scale::minor_ticklength (   )  const

Return the minor ticklength.

bool Scale::on_expose_event (  GdkEventExpose *  event  )  [protected, virtual]

Handles an expose event

void Scale::on_realize (   )  [protected, virtual]

Do the necessary initializations when window is realized.

virtual void PlotMM::Scale::on_tick_change (   )  [protected, virtual]

implement this to react on changes of tick lengths Reimplemented in PlotMM::VScale, and PlotMM::HScale.

Gtk::PositionType PlotMM::Scale::position (   )  const

Return where the scale is positioned.

const DoubleIntMap& PlotMM::Scale::scale_map (   )  const

Query the ScaleMap used by this scale.

void Scale::set_autoscale (  bool  b  )

Turn on autoscaling

void Scale::set_enabled (  bool  b  )

Enable drawing of scales If scale drawing is disabled, no space will be occupied and nothing will be displayed. If a ScaleLabels instance was specified, the ScaleLabels will also be disabled. To re-enable Scale and ScaleLabels drawing, call this function with true.

void Scale::set_position (  Gtk::PositionType  p  )

Change the position of the Scale (may not work) Todo: check this out

void Scale::set_range (  double  l, double  r, bool  lg )

Set the range of double values the scale represents. To make the scale logarithmic, true can be given as the third argument. After setting the new range, the scale is redrawn.

void Scale::set_range (  double  l, double  r )

Set the range of double values the scale represents. To make the scale logarithmic, true can be given as the third argument. After setting the new range, the scale is redrawn.

void Scale::set_ticklengths (  int  major, int  minor )

Set the length of major and minor ticks

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Member Data Documentation

SigC::Signal1<void,bool> PlotMM::Scale::signal_enabled

This signal is thrown whenever the scale is enabled or disabled See also: set_enabled, enabled

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