'\" t
.\" $Id: cdk_calendar.3,v 1.28 2019/02/15 00:29:55 tom Exp $"
.de bP
.ie n  .IP \(bu 4
.el    .IP \(bu 2
..
.de XX
..
.TH cdk_calendar 3
.SH NAME
.XX activateCDKCalendar
.XX destroyCDKCalendar
.XX drawCDKCalendar
.XX eraseCDKCalendar
.XX getCDKCalendarBox
.XX getCDKCalendarDate
.XX getCDKCalendarDayAttribute
.XX getCDKCalendarHighlight
.XX getCDKCalendarMarker
.XX getCDKCalendarMonthAttribute
.XX getCDKCalendarYearAttribute
.XX injectCDKCalendar
.XX moveCDKCalendar
.XX newCDKCalendar
.XX positionCDKCalendar
.XX removeCDKCalendarMarker
.XX setCDKCalendar
.XX setCDKCalendarBackgroundAttrib
.XX setCDKCalendarBackgroundColor
.XX setCDKCalendarBox
.XX setCDKCalendarBoxAttribute
.XX setCDKCalendarDate
.XX setCDKCalendarDayAttribute
.XX setCDKCalendarDaysNames
.XX setCDKCalendarHighlight
.XX setCDKCalendarHorizontalChar
.XX setCDKCalendarLLChar
.XX setCDKCalendarLRChar
.XX setCDKCalendarMarker
.XX setCDKCalendarMonthAttribute
.XX setCDKCalendarMonthsNames
.XX setCDKCalendarPostProcess
.XX setCDKCalendarPreProcess
.XX setCDKCalendarULChar
.XX setCDKCalendarURChar
.XX setCDKCalendarVerticalChar
.XX setCDKCalendarYearAttribute
cdk_calendar \- curses calendar widget.
.SH SYNOPSIS
.LP
.B cc
.RI "[ " "flag" " \|.\|.\|. ] " "file" " \|.\|.\|."
.B \-lcdk
.RI "[ " "library" " \|.\|.\|. ]"
.LP
#include <cdk.h>
.nf
.TP 15
.B "time_t activateCDKCalendar (CDKCALENDAR *" "calendar",
.BI "chtype " "*actions");
.TP 15
.B "void destroyCDKCalendar ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "void drawCDKCalendar (CDKCALENDAR *" "calendar",
.BI "boolean " "box");
.TP 15
.B "void eraseCDKCalendar ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "boolean getCDKCalendarBox ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "void getCDKCalendarDate (CDKCALENDAR *" "calendar",
.BI "int *" "day",
.BI "int *" "month",
.BI "int *" "year");
.TP 15
.B "chtype getCDKCalendarDayAttribute ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "chtype getCDKCalendarHighlight ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "chtype getCDKCalendarMarker ("
.BI "CDKCALENDAR *" "calendar",
.BI "int " "day",
.BI "int " "month",
.BI "int " "year");
.TP 15
.B "chtype getCDKCalendarMonthAttribute ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "chtype getCDKCalendarYearAttribute ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "time_t injectCDKCalendar ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "input");
.TP 15
.B "void moveCDKCalendar ("
.BI "CDKCALENDAR *" "calendar",
.BI "int " "xpos",
.BI "int " "ypos",
.BI "boolean " "relative",
.BI "boolean " "refresh");
.TP 15
.B "CDKCALENDAR *newCDKCalendar (CDKSCREEN *" "cdkscreen",
.BI "int " "xpos",
.BI "int " "ypos",
.BI "const char *" "title",
.BI "int " "day",
.BI "int " "month",
.BI "int " "year",
.BI "chtype " "dayAttrib",
.BI "chtype " "monthAttrib",
.BI "chtype " "yearAttrib",
.BI "chtype " "highlight",
.BI "boolean " "box",
.BI "boolean " "shadow");
.TP 15
.B "void positionCDKCalendar ("
.BI "CDKCALENDAR *" "calendar");
.TP 15
.B "void removeCDKCalendarMarker ("
.BI "CDKCALENDAR *" "calendar",
.BI "int " "day",
.BI "int " "month",
.BI "int " "year");
.TP 15
.B "void setCDKCalendar ("
.BI "CDKCALENDAR *" "calendar",
.BI "int " "day",
.BI "int " "month",
.BI "int " "year",
.BI "chtype " "dayAttrib",
.BI "chtype " "monthAttrib",
.BI "chtype " "yearAttrib",
.BI "chtype " "highlight",
.BI "boolean " "box");
.TP 15
.B "void setCDKCalendarBackgroundAttrib ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "attribute");
.TP 15
.B "void setCDKCalendarBackgroundColor ("
.BI "CDKCALENDAR *" "calendar",
.BI "const char * " "color");
.TP 15
.B "void setCDKCalendarBox ("
.BI "CDKCALENDAR *" "calendar",
.BI "boolean " "box");
.TP 15
.B setCDKCalendarBoxAttribute ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "ch");
.TP 15
.B "void setCDKCalendarDate ("
.BI "CDKCALENDAR *" "calendar",
.BI "int " "day",
.BI "int " "month",
.BI "int " "year");
.TP 15
.B "void setCDKCalendarDayAttribute ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "attribute");
.TP
.B "void setCDKCalendarDaysNames ("
.BI "CDKCALENDAR *" "calendar",
.BI "const char *" "days");
.TP 15
.B "void setCDKCalendarHighlight ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "attribute");
.TP 15
.B "void setCDKCalendarHorizontalChar ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "ch");
.TP 15
.B "void setCDKCalendarLLChar ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "ch");
.TP 15
.B "void setCDKCalendarLRChar ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "ch");
.TP 15
.B "void setCDKCalendarMarker ("
.BI "CDKCALENDAR *" "calendar",
.BI "int " "day",
.BI "int " "month",
.BI "int " "year",
.BI "chtype " "marker");
.TP 15
.B "void setCDKCalendarMonthAttribute ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "attribute");
.TP
.B "void setCDKCalendarMonthsNames ("
.BI "CDKCALENDAR *" "calendar",
.BI "CDK_CONST char **" "months");
.TP 15
.B "void setCDKCalendarPostProcess ("
.BI "CDKCALENDAR *" "calendar",
.BI "PROCESSFN " "callback",
.BI "void * " "data");
.TP 15
.B "void setCDKCalendarPreProcess ("
.BI "CDKCALENDAR *" "calendar",
.BI "PROCESSFN " "callback",
.BI "void * " "data");
.TP 15
.B setCDKCalendarULChar ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "ch");
.TP 15
.B setCDKCalendarURChar ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "ch");
.TP 15
.B setCDKCalendarVerticalChar ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "ch");
.TP 15
.B "void setCDKCalendarYearAttribute ("
.BI "CDKCALENDAR *" "calendar",
.BI "chtype " "attribute");
.fi
.SH DESCRIPTION
The Cdk calendar widget creates a pop-up calendar.
The calendar widget allows the user to traverse through
months/years using the cursor keys.
.SH AVAILABLE FUNCTIONS
.TP 5
.B activateCDKCalendar
activates the calendar widget and lets the user interact with the widget.
.RS
.bP
The \fBcalendar\fR widget is a pointer to a non-NULL calendar widget.
.bP
If the \fBactions\fR parameter is passed with a non-NULL value, the characters
in the array will be injected into the widget.
.IP
To activate the widget
interactively pass in a \fINULL\fR pointer for \fBactions\fR.
.IP
If the character
entered into this widget is \fIRETURN\fR then this function will return a type
of \fItime_t\fR.
.bP
The \fItime_t\fR type is used in the functions defined in the
time.h header file.
(see \fIlocaltime\fR or \fIctime\fR for more information).
.RE
.IP
If the character entered into this widget was \fIESCAPE\fR or
\fITAB\fR then this function will return a value of (time_t)-1
and the widget data \fIexitType\fR will be set to \fIvESCAPE_HIT\fR.
.TP 5
.B destroyCDKCalendar
removes the widget from the screen and frees memory the object used.
.TP 5
.B drawCDKCalendar
draws the label widget on the screen.
.IP
If the \fBbox\fR parameter is true, the widget is drawn with a box.
.TP 5
.B eraseCDKCalendar
removes the widget from the screen.
This does \fINOT\fR destroy the widget.
.TP 5
.B getCDKCalendarBox
returns whether the widget will be drawn with a box around it.
.TP 5
.B getCDKCalendarDate
returns the current date the calendar is displaying.
.TP 5
.B getCDKCalendarDayAttribute
returns the attribute of the day attribute of the calendar.
.TP 5
.B getCDKCalendarHighlight
returns the attribute of the highlight bar of the scrolling
list portion of the widget.
.TP
.B getCDKCalendarMarker
returns the marker set on the calendar by \fBsetCDKCalendarMarker\fP.
.TP 5
.B getCDKCalendarMonthAttribute
returns the attribute of the month attribute of the calendar.
.TP 5
.B getCDKCalendarYearAttribute
returns the attribute of the year attribute of the calendar.
.TP 5
.B injectCDKCalendar
injects a single character into the widget.
.RS
.bP
The parameter \fBcalendar\fR is a pointer to a non-NULL calendar widget.
.bP
The parameter \fBcharacter\fR is the character to inject into the widget.
.RE
.IP
The return value and side-effect (setting the widget data \fIexitType\fP)
depend upon the injected character:
.RS
.TP
\fIRETURN\fP or \fITAB\fR
the function returns
a value of type \fItime_t\fR
(see \fIlocaltime\fR or \fIctime\fR for more information).
The widget data \fIexitType\fR is set to \fIvNORMAL\fR.
.TP
\fIESCAPE\fP
the function returns
(time_t)-1.
The widget data \fIexitType\fR is set to \fIvESCAPE_HIT\fR.
.TP
Otherwise
unless modified by preprocessing, postprocessing or key bindings,
the function returns
(time_t)-1.
The widget data \fIexitType\fR is set to \fIvEARLY_EXIT\fR.
.RE
.TP 5
.B moveCDKCalendar
moves the given widget to the given position.
.RS
.bP
The parameters \fBxpos\fR and \fBypos\fR are the new position of the widget.
.IP
The parameter \fBxpos\fR may be an integer or one of the pre-defined values
\fITOP\fR, \fIBOTTOM\fR, and \fICENTER\fR.
.IP
The parameter \fBypos\fR may be an integer,
or one of the pre-defined values \fILEFT\fR,
\fIRIGHT\fR, and \fICENTER\fR.
.bP
The parameter \fBrelative\fR states whether
the \fBxpos\fR/\fBypos\fR pair is a relative move or an absolute move.
.IP
For example,
if \fBxpos\fR = 1 and \fBypos\fR = 2 and \fBrelative\fR = \fBTRUE\fR,
then the widget would move one row down and two columns right.
If the value of \fBrelative\fR was \fBFALSE\fR,
then the widget would move to the position (1,2).
.IP
Do not use the values \fITOP\fR, \fIBOTTOM\fR, \fILEFT\fR,
\fIRIGHT\fR, or \fICENTER\fR when \fBrelative\fR = \fITRUE\fR.
(weird things may happen).
.bP
The final parameter \fBrefresh\fR is a boolean value which
states whether the widget will get refreshed after the move.
.RE
.TP 5
.B newCDKCalendar
creates a calendar widget and returns a pointer to it.
Parameters:
.RS
.TP 5
\fBscreen\fR
is the screen you wish this widget to be placed in.
.TP 5
\fBxpos\fR
controls the placement of the object along the horizontal axis.
It may be an integer or one of the pre-defined values
\fILEFT\fR, \fIRIGHT\fR, and \fICENTER\fR.
.TP 5
\fBypos\fR
controls the placement of the object along the vertical axis.
It may be an integer or one of the pre-defined values
\fITOP\fR, \fIBOTTOM\fR, and \fICENTER\fR.
.TP 5
\fBtitle\fR
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.
.TP 5
\fByear\fR,
.TP 5
\fBmonth\fR and
.TP 5
\fBday\fR
.br
set the initial date of the calendar.
.TP 5
\fByearAttrib\fR,
.TP 5
\fBmonthAttrib\fR and
.TP 5
\fBdayAttrib\fR
represent the attributes of the year, month, and day respectively.
.TP 5
\fBhighlight\fR
sets the highlight of the currently selected day.
.TP 5
\fBbox\fR
is true if the widget should be drawn with a box around it.
.TP 5
\fBshadow\fR
turns the shadow on or off around this widget.
.RE
.IP
If the widget could not be created
then a \fINULL\fR pointer is returned.
.TP 5
.B positionCDKCalendar
allows the user to move the widget around the screen via the cursor/keypad keys.
See \fBcdk_position (3)\fR for key bindings.
.TP 5
.B removeCDKCalendarMarker
removes a marker from the calendar.
.TP 5
.B setCDKCalendar
lets the programmer modify certain elements of an existing
calendar widget.
.RS
.bP
The \fBcalendar\fR parameter represents an existing calendar pointer.
.bP
The other parameter names correspond to the same parameter names listed
in the \fBnewCDKCalendar\fR function.
.RE
.TP 5
.B setCDKCalendarBackgroundAttrib
sets the background attribute of the widget.
.IP
The parameter \fBattribute\fR is a curses attribute, e.g., A_BOLD.
.TP 5
.B setCDKCalendarBackgroundColor
sets the background color of the widget.
.IP
The parameter \fBcolor\fR
is in the format of the Cdk format strings.
.IP
See \fBcdk_display (3)\fR.
.TP 5
.B setCDKCalendarBox
sets whether the widget will be drawn with a box around it.
.TP 5
.B setCDKCalendarBoxAttribute
sets the attribute of the box.
.TP 5
.B setCDKCalendarDate
sets the calendar to the given date.
.IP
If the value of the \fBday\fR,
\fBmonth\fR, or \fByear\fR parameters is -1 then the current day, month, or year
is used to set the date.
.TP 5
.B setCDKCalendarDayAttribute
sets the attribute of the day in the calendar.
.TP
.B setCDKCalendarDaysNames
sets the names of the days of the week.
.IP
The parameter is a string listing the 2-character abbreviations for the
days.
.IP
The default value is
.RS
"Su Mo Tu We Th Fr Sa"
.RE
.IP
"Su" (Sunday) is numbered zero internally,
making it by default the first day of the week.
Set the \fBweekBase\fP member of the widget to select a different day.
For example, Monday would be 1, Tuesday 2, etc.
.TP 5
.B setCDKCalendarHighlight
sets the attribute of the highlight bar of the scrolling
list portion of the widget.
.TP 5
.B setCDKCalendarHorizontalChar
sets the horizontal drawing character for the box to
the given character.
.TP 5
.B setCDKCalendarLLChar
sets the lower left hand corner of the widget's box to
the given character.
.TP 5
.B setCDKCalendarLRChar
sets the lower right hand corner of the widget's box to
the given character.
.TP 5
.B setCDKCalendarMarker
allows the user to set a marker which will be displayed when the month is drawn.
.IP
The \fBmarker\fR parameter is the attribute to use when drawing the marker.
If more than one marker is set on a single day, then the day will blink
with the original marker attribute.
.TP 5
.B setCDKCalendarMonthAttribute
sets the attribute of the month in the calendar.
.TP
.B setCDKCalendarMonthsNames
sets the names of the months of the year.
.IP
The parameter is a 13-element array (since indexing starts with 1).
.IP
The default values are the English month names, e.g., "January".
.TP 5
.B setCDKCalendarPostProcess
allows the user to have the widget call a function after the
key has been applied to the widget.
.RS
.bP
The parameter \fBfunction\fR is the callback function.
.bP
The parameter \fBdata\fR points to data passed to the callback function.
.RE
.IP
To learn more about post-processing see \fIcdk_process (3)\fR.
.TP 5
.B setCDKCalendarPreProcess
allows the user to have the widget call a function after a key
is hit and before the key is applied to the widget.
.RS
.bP
The parameter \fBfunction\fR is the callback function.
.bP
The parameter \fBdata\fR points to data passed to the callback function.
.RE
.IP
To learn more about pre-processing see \fIcdk_process (3)\fR.
.TP 5
.B setCDKCalendarULChar
sets the upper left hand corner of the widget's box to
the given character.
.TP 5
.B setCDKCalendarURChar
sets the upper right hand corner of the widget's box to
the given character.
.TP 5
.B setCDKCalendarVerticalChar
sets the vertical drawing character for the box to
the given character.
.TP 5
.B setCDKCalendarYearAttribute
sets the attribute of the year in the calendar.
.SH KEY BINDINGS
When the widget is activated there are several default key bindings which will
help the user enter or manipulate the information quickly.
The following table
outlines the keys and their actions for this widget.
.LP
.TS
center tab(/) allbox;
l l
l l
lw15 lw35 .
\fBKey/Action\fR
=
Left Arrow/Moves the cursor to the previous day.
Right Arrow/Moves the cursor to the next day.
Up Arrow/Moves the cursor to the next week.
Down Arrow/Moves the cursor to the previous week.
t/Sets the calendar to the current date.
T/Sets the calendar to the current date.
n/Advances the calendar one month ahead.
N/Advances the calendar six months ahead.
p/Advances the calendar one month back.
P/Advances the calendar six months back.
-/Advances the calendar one year ahead.
+/Advances the calendar one year back.
Return/T{
Exits the widget and returns a value of \fItime_t\fR which represents the day selected at 1 second after midnight.
This also sets the widget data \fIexitType\fR to \fIvNORMAL\fR.
T}
Tab/T{
Exits the widget and returns a value of \fItime_t\fR which represents the day selected at 1 second after midnight.
This also sets the widget data \fIexitType\fR to \fIvNORMAL\fR.
T}
Escape/T{
Exits the widget and returns (time_)-1.
This also sets the widget data \fIexitType\fR to \fIvESCAPE_HIT\fR.
T}
Ctrl-L/Refreshes the screen.
.TE
.SH SEE ALSO
.BR cdk (3),
.BR cdk_binding (3),
.BR cdk_display (3),
.BR cdk_position (3),
.BR cdk_screen (3)