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.Dd August 20, 2002
.Dt AG_FIXED_PLOTTER 3
.Os
.ds vT Agar API Reference
.ds oS Agar 1.0
.Sh NAME
.Nm AG_FixedPlotter
.Nd agar integer plot widget
.Sh SYNOPSIS
.Bd -literal
#include <agar/core.h>
#include <agar/gui.h>
.Ed
.Sh DESCRIPTION
The
.Nm
widget is a scrollable plotter widget that accepts integer values.
It is mainly designed for displaying performance measurements.
.Pp
A much more featureful, floating-point plotter is available as
.Xr SC_Plotter 3 .
.Sh INHERITANCE HIERARCHY
.Xr AG_Object 3 ->
.Xr AG_Widget 3 ->
.Nm .
.Sh INITIALIZATION
.nr nS 1
.Ft "AG_FixedPlotter *"
.Fn AG_FixedPlotterNew "AG_Widget *parent, enum ag_fixed_plotter_type type" "Uint flags"
.Pp
.nr nS 0
The
.Fn AG_FixedPlotterNew
function allocates, initializes, and attaches a new
.Nm
widget.
The
.Fa type
argument is one of:
.Pp
.Bd -literal
enum ag_fixed_plotter_type {
	AG_FIXED_PLOTTER_POINTS,   /* Dots */
	AG_FIXED_PLOTTER_LINES     /* Lines */
} type;
.Ed
.Pp
The
.Fa flags
may include:
.Pp
.Bl -tag -width "AG_FIXED_PLOTTER_SCROLL "
.It AG_FIXED_PLOTTER_SCROLL
Always scroll to the end of the plot if it is not visible.
.It AG_FIXED_PLOTTER_XAXIS
Display the X-axis line.
.El
.Sh PLOTTING
.nr nS 1
.Ft "AG_FixedPlotterCurve *"
.Fn AG_FixedPlotterCurve "AG_FixedPlotter *fpl, const char *name" "Uint8 r, Uint8 g, Uint8 b, Uint32 limit"
.Pp
.Ft void
.Fn AG_FixedPlotterDatum "AG_FixedPlotterCurve *curve" "AG_FixedPlotterValue val"
.Pp
.nr nS 0
The
.Fn AG_FixedPlotterCurve
function creates a new curve into
.Fa fpl .
The
.Fa r ,
.Fa g ,
.Fa b
triplet composes a color to visually identify the item.
.Fa limit
is the maximum number of points (if 0, the maximum is implicitely
.Dv INT_MAX
- 1).
.Pp
The
.Fn AG_FixedPlotterDatum
function adds a value
.Fa val
to the specified
.Fa curve .
.Sh EVENTS
The
.Nm
widget reacts to the following events:
.Pp
.Bl -tag -compact -width "window-mousebuttondown"
.It window-mousemotion
Scroll (x motion) or change the origin position (y motion).
.It window-keydown
Key 0 moves to offset 0, left key scrolls left, right key scrolls right,
.It window-mousebuttonup
Stop moving.
.It window-mousebuttondown
Start moving.
.El
.Pp
The
.Nm
widget does not generate any event.
.Sh STRUCTURE DATA
For the
.Ft AG_FixedPlotter
object:
.Pp
.Bl -tag -width "enum ag_fixed_plotter_type type "
.It Ft enum ag_fixed_plotter_type type
Drawing method, initially set by
.Fn AG_FixedPlotterNew .
.El
.Sh SEE ALSO
.Xr AG_Intro 3 ,
.Xr AG_Widget 3 ,
.Xr AG_Window 3
.Sh HISTORY
The
.Nm
widget first appeared in Agar 1.0.