Fl_Scope V0.1.0

class Fl_Scope

Class Hierarchy

 Fl_Widget
    |
    +----Fl_Scope

Include Files

 #include <Fl_Scope.H>

Description

This widget creates a simple singe trace scope type widget. It is very basic and may be expanded over time.

Features Include:
   Signed Integer value input
   Scrolled or Looped data
   Several redraw modes

Methods

Fl_Scope
~Fl_Scope
tracetype

redrawmode
linetype
datatype

Add
TraceColour
BackColour

Fl_Scope::Fl_Scope(int x,int y,int w,int h,const char *label=0)

The constructor creates the plotting area using the position, size, and label.

Fl_Scope::~Fl_Scope(void);

The destructor - releases buffer.

int Fl_Scope::tracetype()
void Fl_Scope::tracetype(int)

The first form returns the type of trace.
The second form sets the type of trace.
Trace types are:

FL_SCOPE_TRACE_SCROLL - Scrolls data

FL_SCOPE_TRACE_LOOP - when data hits right, restarts from left

FL_SCOPE_TRACE_LOOP_CLEAR - as above but clears current data first

int Fl_Scope::redrawmode(void)
Fl_Scope::redrawmode(int)

The first form returns the current redraw mode
The second form sets the redraw mode.
Redraw Modes are:

FL_SCOPE_REDRAW_OFF - No automatic redraw, up to user or screen refresh

FL_SCOPE_REDRAW_FULL - Redraw when scope data has filled buffer/display

FL_SCOPE_REDRAW_ALWAYS - Redraw every time data added

int Fl_Scope::linetype(void)
Fl_Scope::linetype(int)

The first form returns the line type.
The second form sets the line type.
Line Types are:

FL_SCOPE_DOT - Uses pixel points to display data

FL_SCOPE_LINE - draws lines between data points

int Fl_Scope:: datatype(void)
Fl_Scope::datatype(int)

The first form returns the data dispaly type
The Second form sets the data display type.
Data Types are:

FL_SCOPE_SIGNED - Signed integer - Zero is Y center

FL_SCOPE_UNSIGNED - Unsigned - Zero is Y Bottom

Fl_Scope::Add(int)

Adds the next point to the data.

Fl_Color Fl_Scope:: TraceColour(void)
Fl_Scope::TraceColour(Fl_Color)

The first form returns the trace colour.
The second form sets the trace color.

Fl_Color FL_Scope:: BackColour(void)
FL_Scope:: BackColour(Fl_Color)

The first form returns the backgound colour.
The Second form sets the background colour.

Future plans

Following are possible future additions - ideas and comments welcome.

Add Division markers

May write new widget Fl_Oscilloscope that acts like a multitrace scope.

Known Problems

Please let me know of any bugs you may find.