.de It
.br
.ie \\n(.$>=3 .ne \\$3
.el .ne 3
.IP "\\$1" \\$2
..
.TH cdk_histogram 3 "24 April 1997"
.SH NAME
newCDKHistogram, setCDKHistogram, 
setCDKHistogramValue, getCDKHistogramValue, getCDKHistogramLowValue, getCDKHistogramHighValue,
setCDKHistogramViewType, getCDKHistogramViewType,
setCDKHistogramFillerChar, getCDKHistogramFillerChar,
setCDKHistogramStatsPos, getCDKHistogramStatsPos,
setCDKHistogramStatsAttr, getCDKHistogramStatsAttr,
setCDKHistogramBox, getCDKHistogramBox,
setCDKHistogramULChar, setCDKHistogramURChar,
setCDKHistogramLLChar, setCDKHistogramLRChar,
setCDKHistogramVerticalChar, setCDKHistogramHorizontalChar,
setCDKHistogramBoxAttribute,
setCDKHistogramBackgroundColor,
drawCDKHistogram, eraseCDKHistogram, 
destroyCDKHistogram \- Creates a managed curses histogram widget.
.SH SYNOPSIS
.LP
.B cc
.RI "[ " "flag" " \|.\|.\|. ] " "file" " \|.\|.\|."
.B \-lcdk
.RI "[ " "library" " \|.\|.\|. ]"
.LP
#include <cdk.h>
.LP
.BI "CDKHISTOGRAM *newCDKHistogram (CDKSCREEN *" "cdkscreen",
.BI "int " "xpos",
.BI "int " "ypos",
.BI "char *" "title",
.BI "int " "height",
.BI "int " "width",
.BI "int " "orient",
.BI "char *" "label",
.BI "boolean " "box",
.BI "boolean " "shadow");
.LP
.BI "void setCDKHistogram (CDKHISTOGRAM *" "histogram",
.BI "EHistogramDisplayType " "viewType",
.BI "int " "statsPos",
.BI "chtype " "statsAttribute",
.BI "int " "lowValue",
.BI "int " "highValue",
.BI "int " "currentValue",
.BI "chtype " "fillerCharacter",
.BI "boolean " "box");
.LP
.BI "void setCDKHistogramValue (CDKHISTOGRAM *" "histogram",
.BI "int " "lowValue",
.BI "int " "highValue",
.BI "int " "currentValue");
.LP
.BI "int getCDKHistogramLowValue (CDKHISTOGRAM *" "histogram");
.LP
.BI "int getCDKHistogramHighValue (CDKHISTOGRAM *" "histogram");
.LP
.BI "int getCDKHistogramValue (CDKHISTOGRAM *" "histogram");
.LP
.BI "void setCDKHistogramViewType (DKHISTOGRAM *" "histogram",
.BI "EHistogramDisplayType " "viewType");
.LP
.BI "EHistogramDisplayType getCDKHistogramViewType (DKHISTOGRAM *" "histogram");
.LP
.BI "void setCDKHistogramFillerChar (DKHISTOGRAM *" "histogram",
.BI "chtype " "fillerCharacter");
.LP
.BI "chtype getCDKHistogramFillerChar (DKHISTOGRAM *" "histogram");
.LP
.BI "void setCDKHistogramStatsPos (DKHISTOGRAM *" "histogram",
.BI "int " "statsPosition");
.LP
.BI "int getCDKHistogramStatsPos (DKHISTOGRAM *" "histogram");
.LP
.BI "void setCDKHistogramStatsAttr (DKHISTOGRAM *" "histogram",
.BI "chtype " "statsAttribute");
.LP
.BI "chtype getCDKHistogramStatsAttr (DKHISTOGRAM *" "histogram");
.LP
.BI "void setCDKHistogramBox (DKHISTOGRAM *" "histogram",
.BI "boolean " "box");
.LP
.BI "boolean getCDKHistogramBox (DKHISTOGRAM *" "histogram");
.LP
.BI "void setCDKHistogramULChar (CDKHISTOGRAM *", "histogram",
.BI "chtype " "character");
.LP
.BI "void setCDKHistogramURChar (CDKHISTOGRAM *", "histogram",
.BI "chtype " "character");
.LP
.BI "void setCDKHistogramLLChar (CDKHISTOGRAM *", "histogram",
.BI "chtype " "character");
.LP
.BI "void setCDKHistogramLRChar (CDKHISTOGRAM *", "histogram",
.BI "chtype " "character");
.LP
.BI "void setCDKHistogramVerticalChar (CDKHISTOGRAM *", "histogram",
.BI "chtype " "character");
.LP
.BI "void setCDKHistogramHorizontalChar (CDKHISTOGRAM *", "histogram",
.BI "chtype " "character");
.LP
.BI "void setCDKHistogramBoxAttribute (CDKHISTOGRAM *", "histogram",
.BI "chtype " "character");
.LP
.BI "void setCDKHistogramBackgroundColor (CDKHISTOGRAM *", "histogram",
.BI "char * " "color");
.LP
.BI "void moveCDKHistogram (CDKHISTOGRAM *" "histogram",
.BI "int " "box",
.BI "int " "box",
.BI "boolean " "relative",
.BI "boolean " "refresh");
.LP
.BI "void positionCDKHistogram (CDKHISTOGRAM *" "histogram");
.LP
.BI "void drawCDKHistogram (CDKHISTOGRAM *" "histogram",
.BI "boolean " "box");
.LP
.BI "void eraseCDKHistogram (CDKHISTOGRAM *" "histogram");
.LP
.BI "void destroyCDKHistogram (CDKHISTOGRAM *" "histogram");
.LP
.SH DESCRIPTION
The Cdk histogram widget creates a histogram widget. This widget can draw a 
vertical or horizontal histogram. The following are functions which create or 
manipulate the Cdk histogram box widget.

.SH AVAILABLE FUNCTIONS
CDKHISTOGRAM *newCDKHistogram (CDKSCREEN *\f2screen\f1, int \f2xpos\f1, int \f2ypos\f1, char *\f2title\f1, int \f2height\f1, int \f2width\f1, int \f2orient\f1, char *\f2label\f1, boolean \f2box\f1, boolean \f2shadow\f1);
.RS 3
This function creates a pointer to a histogram widget. The \f2screen\f1 parameter
is the screen you wish this widget to be placed in. The parameter \f2xpos\f1
controls the placement of the object along the horizontal axis. This parameter
can accept an integer value or one of the pre-defined values of \f4LEFT\f1,
\f4RIGHT\f1, and \f4CENTER\f1. The parameter \f2ypos\f1 controls the placement
of the object along the vertical axis. This parameter can accept an integer 
value or one of the pre-defined values of \f4TOP\f1, \f4BOTTOM\f1, and \f4CENTER\f1.
The \f2title\f1 parameter is the string which will be displayed at the top of the 
widget. The title can be more than one line; just provide a carriage return 
character at the line break. The parameters \f2height\f1 and \f2width\f1 control 
the height and width of the widget. If you provide a value of zero for either 
of the height or the width, the widget will be created with the full width and 
height of the screen. If you provide a negative value, the widget will be created
the full height or width minus the value provided. The \f2orient\f1
parameter specifies the orientation of the histogram. This parameter accepts 
two values: \f4VERTICAL\f1 and \f4HORIZONTAL\f1. The \f2label\f1 parameter 
specifies the contents of the label of the histogram. The \f2box\f1 parameter 
states whether the widget will be drawn with a box around it or not. The 
\f2shadow\f1 parameter accepts a boolean value to turn the shadow on or 
off around this widget. If the widget could not be created then a \f4NULL\f1
pointer is returned.
.RE

void setCDKHistogram (CDKHISTOGRAM *\f2histogram\f1, EHistogramDisplayType \f2viewType\f1, int \f2statsPosition\f1, chtype \f2statsAttribute\f1, int \f2lowValue\f1, int \f2highValue\f1, int \f2currentValue\f1, chtype \f2fillerCharacter\f1, boolean \f2box\f1);
.RS 3
This function lets the programmer set the specific values of the histogram 
widget.  The parameter \f2viewType\f1 specifies the type of histogram to draw.
The following table lists the valid values and the results.
.LP
.RS 3
.nf 
\f2Display_Type      Result\f1
vNONE             Displays no information
                  about the current values.
vPERCENT          Displays the current
                  value as a percentage.
vFRACTION         Displays the current
                  value as a fraction.
vREAL             Displays the current value.
.fi
.RE
.LP
The \f2statsPosition\f1 parameter states where the statistics will be 
displayed. It accepts \f4TOP\f1, \f4BOTTOM\f1, and \f4CENTER\f1. The parameter
\f2statsAttribute\f1 sets the attributes of the statistics. The parameters 
\f2lowValue\f1, \f2highValue\f1, and \f2currentValue\f1 are the low, high, 
and current values respectively. The \f2filler\f1 character is the character 
to use in the unused space in the histogram. The \f2box\f1 option draws 
the widget with or without a box.
.RE

void setCDKHistogramValue (CDKHISTOGRAM *\f2histogram\f1, int \f2low\f1, int \f2high\f1, int \f2value\f1);
.RS 3
This sets the low, high, and current value of the histogram.
.RE

int getCDKHistogramLowValue (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns the low value of the histogram.
.RE

int getCDKHistogramHighValue (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns the high value of the histogram.
.RE

int getCDKHistogramValue (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns the current value of the histogram.
.RE

void setCDKHistogramViewType (CDKHISTOGRAM *\f2histogram\f1, EHistogramViewType \f2viewType\f1);
.RS 3
This sets the view type of the histogram. Look at the \f4setCDKHistogram\f1 section in this
man page for more details.
.RE

EHistogramViewType getCDKHistogramViewType (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns the view type of the histogram widget.
.RE

void setCDKHistogramFillerChar (CDKHISTOGRAM *\f2histogram\f1, chtype \f2fillerChar\f1);
.RS 3
This sets the character to use when drawing the histogram bar.
.RE

chtype getCDKHistogramFillerChar (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns the character being used to draw the histogram bar.
.RE

void setCDKHistogramStatsPos (CDKHISTOGRAM *\f2histogram\f1, int \f2statsPos\f1);
.RS 3
This sets where the statistics will be drawn on the widget. Look at the 
\f4setCDKHistogram\f1 section in this man page for more details.
.RE

int getCDKHistogramStatsPos (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns where the histogram will draw the statistics.
.RE

void setCDKHistogramStatsAttr (CDKHISTOGRAM *\f2histogram\f1, int \f2statsAttribute\f1);
.RS 3
This sets the attribute to use when drawing the histogram statistics.
.RE

chtype getCDKHistogramStatsAttr (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns the attribute of the statistics of the histogram.
.RE

void setCDKHistogramBox (CDKHISTOGRAM *\f2histogram\f1, boolean \f2boxWidget\f1);
.RS 3
This sets whether or not the widget will be draw with a box around it.
.RE

boolean getCDKHistogramBox (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This returns whether or not the widget will be drawn with a box around it.
.RE

void setCDKHistogramULChar (CDKHISTOGRAM *\f2histogram\f1, chtype \f2character\f1);
.RS 3
This function sets the upper left hand corner of the widgets box to
the given character.
.RE

void setCDKHistogramURChar (CDKHISTOGRAM *\f2histogram\f1, chtype \f2character\f1);
.RS 3
This function sets the upper right hand corner of the widgets box to
the given character.
.RE

void setCDKHistogramLLChar (CDKHISTOGRAM *\f2histogram\f1, chtype \f2character\f1);
.RS 3
This function sets the lower left hand corner of the widgets box to
the given character.
.RE

void setCDKHistogramLRChar (CDKHISTOGRAM *\f2histogram\f1, chtype \f2character\f1);
.RS 3
This function sets the lower right hand corner of the widgets box to
the given character.
.RE

void setCDKHistogramVerticalChar (CDKHISTOGRAM *\f2histogram\f1, chtype \f2character\f1);
.RS 3
This function sets the vertical drawing character for the box to
the given character.
.RE

void setCDKHistogramHorizontalChar (CDKHISTOGRAM *\f2histogram\f1, chtype \f2character\f1);
.RS 3
This function sets the horizontal drawing character for the box to
the given character.
.RE

void setCDKHistogramBoxAttribute (CDKHISTOGRAM *\f2histogram\f1, chtype \f2attribute\f1);
.RS 3
This function sets the attribute of the box.
.RE

void setCDKHistogramBackgroundColor (CDKHISTOGRAM *\f2histogram\f1, char *\f2color\f1);
.RS 3
This sets the background color of the widget. The parameter \f2color\f1
is in the format of the Cdk format strings. To get more information look
at the \f4cdk_display\f1 manual page.
.RE

void moveCDKHistogram (CDKHISTOGRAM *\f2histogram\f1, int \f2xpos\f1, int \f2ypos\f1, boolean \f2relative\f1, boolean \f2refresh\f1);
.RS 3
This function moves the given widget to the given position. The parameters
\f2xpos\f1 and \f2ypos\f1 is the new position of the widget. The parameter
\f2xpos\f1 can accept an integer value or one of the pre-defined values of
\f4TOP\f1, \f4BOTTOM\f1, and \f4CENTER\f1. The parameter \f2ypos\f1 can 
accept an integer value or one of the pre-defined values of \f4LEFT\f1,
\f4RIGHT\f1, and \f4CENTER\f1. The parameter \f2relative\f1 states whether
the \f2xpos\f1/\f2ypos\f1 pair is a relative move or an absolute move. For
example if \f2xpos\f1 = 1 and \f2ypos\f1 = 2 and \f2relative\f1 = \f2TRUE\f1,
then the widget would move one row down and two columns right. If the value
of \f2relative\f1 was \f2FALSE\f1 then the widget would move to the position
(1,2). Do not use the values of \f4TOP\f1, \f4BOTTOM\f1, \f4LEFT\f1, 
\f4RIGHT\f1, or \f4CENTER\f1 when \f2relative\f1 = \f4TRUE\f1. (wierd things 
may happen). The final parameter \f2refresh\f1 is a boolean value which states 
whether the widget will get refreshed after the move or not.
.RE

void positionCDKHistogram (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This function allows the user to move the widget around the screen via the
cursor/keypad keys. The following key bindings can be used to move the
widget around the screen.
.LP
.nf
\f4Key Bindings\f1
.RS 3
\f2Key          Action\f1
Up Arrow     Moves the widget up one line.
Down Arrow   Moves the widget down one line.
Left Arrow   Moves the widget left one column
Right Arrow  Moves the widget right one column
Keypad-1     Moves the widget down one line
             and left one column.
Keypad-2     Moves the widget down one line.
Keypad-3     Moves the widget down one line
             and right one column.
Keypad-4     Moves the widget left one column
Keypad-5     Centers the widget both vertically
             and horizontally.
Keypad-6     Moves the widget right one column
Keypad-7     Moves the widget up one line
             and left one column.
Keypad-8     Moves the widget up one line.
Keypad-9     Moves the widget up one line
             and right one column.
t            Moves the widget to the top of the screen.
b            Moves the widget to the bottom of the screen.
l            Moves the widget to the left of the screen.
r            Moves the widget to the right of the screen.
c            Centers the widget between the left and 
             right of the window.
C            Centers the widget between the top and 
             bottom of the window.
Escape       Returns the widget to it's original position.
Return       Exits the function and leaves the widget
             where it was.
.fi
.RE
.RS 3
.LP
Keypad means that if the keyboard you are using has a keypad, then the
Num-Lock light has to be on in order to use the keys as listed. (The
numeric keys at the top of the keyboard will work as well.)
.LP
void drawCDKHistogram (CDKHISTOGRAM *\f2histogram\f1, boolean \f2box\f1);
.RS 3
This function draws the histogram widget on the screen. The \f2box\f1 option 
draws the widget with or without a box.
.RE

void eraseCDKHistogram (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This function removes the widget from the screen. This does \f4NOT\f1 destroy
the widget.
.RE

void destroyCDKHistogram (CDKHISTOGRAM *\f2histogram\f1);
.RS 3
This function removes the widget from the screen and frees up any memory the
object may be using.
.RE
.SH SEE ALSO
.BR cdk (3),
.BR cdk_binding (3),
.BR cdk_display (3),
.BR cdk_screen (3)
.SH NOTES
.PP
The header file \f4<cdk.h>\f1 automatically includes the header files
\f4<curses.h>\f1, \f4<stdlib.h>\f1, \f4<string.h>\f1, \f4<ctype.h>\f1,
\f4<unistd.h>\f1, \f4<dirent.h>\f1, \f4<time.h>\f1, \f4<errno.h>\f1,
\f4<pwd.h>\f1, \f4<grp.h>\f1, \f4<sys/stat.h>\f1, and \f4<sys/types.h>\f1.
The \f4<curses.h>\f1 header file includes \f4<stdio.h>\f1 and \f4<unctrl.h>\f1.
.PP
If you have \f4Ncurses\f1 installed on your machine add -DNCURSES to the 
compile line to include the Ncurses header files instead.