Provided by: libcdk5-dev_5.0.20160131-1_amd64 bug

NAME

       cdk_alphalist - curses sorted list widget.

SYNOPSIS

       cc [ flag ... ] file ...  -lcdk [ library ... ]

       #include <cdk.h>

       char *activateCDKAlphalist (
                      CDKALPHALIST *alphalist,
                      chtype *actions);

       void destroyCDKAlphalist (
                      CDKALPHALIST *alphalist);

       void drawCDKAlphalist (
                      CDKALPHALIST *alphalist,
                      boolean box);

       void eraseCDKAlphalist (
                      CDKALPHALIST *alphalist);

       boolean getCDKAlphalistBox (
                      CDKALPHALIST *alphalist);

       char **getCDKAlphalistContents (
                      CDKALPHALIST *alphalist,
                      int *size);

       int getCDKAlphalistCurrentItem (
                      CDKALPHALIST *widget);

       chtype getCDKAlphalistFillerChar (
                      CDKALPHALIST *alphalist);

       chtype getCDKAlphalistHighlight (
                      CDKALPHALIST *alphalist);

       char *injectCDKAlphalist (
                      CDKALPHALIST *alphalist,
                      chtype input);

       void moveCDKAlphalist (
                      CDKALPHALIST *alphalist,
                      int xpos,
                      int ypos,
                      boolean relative,
                      boolean refresh);

       CDKALPHALIST *newCDKAlphalist (
                      CDKSCREEN *cdkscreen,
                      int xpos,
                      int ypos,
                      int height,
                      int width,
                      const char * title,
                      const char * label,
                      CDK_CONST char ** list,
                      int listSize,
                      chtype fillerCharacter,
                      chtype highlight,
                      boolean box,
                      boolean shadow);

       void positionCDKAlphalist (
                      CDKALPHALIST *alphalist);

       void setCDKAlphalist (
                      CDKALPHALIST *alphalist,
                      CDK_CONST char ** list,
                      int listSize,
                      chtype fillerCharacter,
                      chtype highlight,
                      boolean box);

       void setCDKAlphalistBackgroundAttrib (
                      CDKALPHALIST *alphalist,
                      chtype attribute);

       void setCDKAlphalistBackgroundColor (
                      CDKALPHALIST *alphalist,
                      const char * color);

       void setCDKAlphalistBox (
                      CDKALPHALIST *alphalist,
                      boolean box);

       void setCDKAlphalistBoxAttribute (
                      CDKALPHALIST *alphalist,
                      chtype character);

       void setCDKAlphalistContents (
                      CDKALPHALIST *alphalist,
                      CDK_CONST char ** list,
                      int listSize);

       void setCDKAlphalistCurrentItem (
                      CDKALPHALIST *widget,
                      int item);

       void setCDKAlphalistFillerChar (
                      CDKALPHALIST *alphalist,
                      chtype fillerCharacter);

       void setCDKAlphalistHighlight (
                      CDKALPHALIST *alphalist,
                      chtype highlight);

       void setCDKAlphalistHorizontalChar (
                      CDKALPHALIST *alphalist,
                      chtype character);

       void setCDKAlphalistLLChar (
                      CDKALPHALIST *alphalist,
                      chtype character);

       void setCDKAlphalistLRChar (
                      CDKALPHALIST *alphalist,
                      chtype character);

       void setCDKAlphalistPostProcess (
                      CDKALPHALIST *alphalist,
                      PROCESSFN callback,
                      void * data);

       void setCDKAlphalistPreProcess (
                      CDKALPHALIST *alphalist,
                      PROCESSFN callback,
                      void * data);

       void setCDKAlphalistULChar (
                      CDKALPHALIST *alphalist,
                      chtype character);

       void setCDKAlphalistURChar (
                      CDKALPHALIST *alphalist,
                      chtype character);

       void setCDKAlphalistVerticalChar (
                      CDKALPHALIST *alphalist,
                      chtype character);

DESCRIPTION

       The Cdk alphalist allows a user to select from a list of alphabetically sorted words.  The
       user can use the arrow keys to traverse through the list or type in the beginning  of  the
       word  and  the list will automatically adjust itself in the correct place in the scrolling
       list.  This widget, like the file selector widget, is a compound widget of both the  entry
       field widget and the scrolling list widget.

AVAILABLE FUNCTIONS

       activateCDKAlphalist
            activates  the  alphalist  widget  and  lets  the user interact with the widget.  The
            parameter alphalist is a pointer to a non-NULL  alphalist  widget.   If  the  actions
            parameter  is  passed  with  a  non-NULL  value,  the characters in the array will be
            injected into the widget.  To activate  the  widget  interactively  pass  in  a  NULL
            pointer  for  actions.  If the character entered into this widget is RETURN then this
            function will return a char * of the information which was typed in  the  field.   If
            the  TAB  character is hit then the widget will try to complete the word in the entry
            field.  If the widget is exited with  the  RETURN  character  then  the  widget  data
            exitType  will  be set to vNORMAL.  If the widget was exited with the ESCAPE key then
            the widget data exitType will be set to vESCAPE_HIT and the widget returns NULL.

       destroyCDKAlphalist
            removes the widget from the screen and frees memory the object used.

       drawCDKAlphalist
            draws the alphalist widget on the screen.  If the box parameter is true,  the  widget
            is drawn with a box.

       eraseCDKAlphalist
            removes the widget from the screen.  This does NOT destroy the widget.

       getCDKAlphalistBox
            returns true if the widget will be drawn with a box around it.

       getCDKAlphalistContents
            returns the contents of the alphalist.

       getCDKAlphalistCurrentItem
            returns the current position in the scroll-widget.

       getCDKAlphalistFillerChar
            returns  the  character being used as the filler character in the entry field portion
            of the widget.

       getCDKAlphalistHighlight
            returns the attribute of the highlight bar of  the  scrolling  list  portion  of  the
            widget.

       injectCDKAlphalist
            injects  a  single  character  into  the  widget  (actually  the  entry widget).  The
            parameter alphalist is a pointer to  a  non-NULL  alphalist  widget.   The  parameter
            character  is  the  character  to inject into the widget.  The return value and side-
            effect (setting the widget data exitType) depend upon the injected character:

            RETURN or TAB
                   the function returns the information in the  entry  field.   The  widget  data
                   exitType is set to vNORMAL.

            ESCAPE the  function  returns  a  NULL  pointer.   The widget data exitType is set to
                   vESCAPE_HIT.

            Otherwise
                   unless modified by preprocessing, postprocessing or key bindings, the function
                   returns a NULL pointer.  The widget data exitType is set to vEARLY_EXIT.

       moveCDKAlphalist
            moves  the  given widget to the given position.  The parameters xpos and ypos are the
            new position of the widget.  The parameter xpos may be an integer or one of the  pre-
            defined  values TOP, BOTTOM, and CENTER.  The parameter ypos may be an integer or one
            of the pre-defined values LEFT, RIGHT, and CENTER.   The  parameter  relative  states
            whether  the  xpos/ypos pair is a relative move or an absolute move.  For example, if
            xpos = 1 and ypos = 2 and relative = TRUE, then the widget would move  one  row  down
            and two columns right.  If the value of relative was FALSE then the widget would move
            to the position (1,2).  Do not use the values TOP, BOTTOM,  LEFT,  RIGHT,  or  CENTER
            when  relative  = TRUE.  (weird things may happen).  The final parameter refresh is a
            boolean value which states whether the widget will get refreshed after the move.

       newCDKAlphalist
            creates a pointer to an alphalist widget.  Parameters:

            screen
                 is the screen you wish this widget to be placed in.

            xpos controls the placement of the object along the horizontal axis.  This  parameter
                 can take an integer or one of the pre-defined values LEFT, RIGHT, and CENTER.

            ypos controls  the  placement  of the object along the vertical axis.  This parameter
                 may be an integer value or one  of  the  pre-defined  values  TOP,  BOTTOM,  and
                 CENTER.

            height and

            width
                 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.

            title
                 is the string which will be displayed at the top of  the  scrolling  list.   The
                 title can be more than one line; just provide a carriage return character at the
                 line break.

            label
                 is the string which will be displayed in the label of the entry field.

            list is the list of words which will be displayed in the scrolling list.   This  list
                 does  not have to be sorted, this widget automatically sorts the list (note that
                 it modifies the caller's copy of the list to do this).

            listSize
                 tells the widget how large the word list is.

            fillerCharacter
                 is the character which is to be displayed in an empty space in the entry field.

            highlight
                 is the attribute of the highlight bar in the scrolling list.

            box  is true if the widget should be drawn with a box around it.

            shadow
                 is true to turn the shadow on around this widget.

            If the widget could not be created then a NULL pointer is returned.

       positionCDKAlphalist
            allows the user to move the widget around the screen via the cursor/keypad keys.  See
            cdk_position (3) for key bindings.

       setCDKAlphalist
            lets  the  programmer  modify  certain elements of an existing alphalist widget.  The
            parameter names correspond to the same parameter names listed in the  newCDKAlphalist
            function.

       setCDKAlphalistBackgroundAttrib
            sets  the  background  attribute  of the widget.  The parameter attribute is a curses
            attribute, e.g., A_BOLD.

       setCDKAlphalistBackgroundColor
            sets the background color of the widget.  The parameter color is in the format of the
            Cdk format strings.  See cdk_display (3).

       setCDKAlphalistBox
            sets whether the widget will be drawn with a box around it.

       setCDKAlphalistBoxAttribute
            sets the attribute of the box.

       setCDKAlphalistContents
            sets  the  contents  of the alphalist widget (note that it sorts the caller's copy of
            the list).

       setCDKAlphalistCurrentItem
            set the current position in the scroll-widget.

       setCDKAlphalistFillerChar
            sets the character to use when drawing the entry field portion of the widget.

       setCDKAlphalistHighlight
            sets the attribute of the highlight bar of the scrolling list portion of the widget.

       setCDKAlphalistHorizontalChar
            sets the horizontal drawing character for the box to the given character.

       setCDKAlphalistLLChar
            sets the lower left hand corner of the widget's box to the given character.

       setCDKAlphalistLRChar
            sets the lower right hand corner of the widget's box to the given character.

       setCDKAlphalistPostProcess
            allows the user to have the widget call a function after the key has been applied  to
            the  widget.   The  parameter  function is the callback function.  The parameter data
            points to data passed to the callback function.  To learn more about  post-processing
            see cdk_process (3).

       setCDKAlphalistPreProcess
            allows  the user to have the widget call a function after a key is hit and before the
            key is applied to the widget.  The parameter function is the callback function.   The
            parameter  data  points to data passed to the callback function.  To learn more about
            pre-processing see cdk_process (3).

       setCDKAlphalistULChar
            sets the upper left hand corner of the widget's box to the given character.

       setCDKAlphalistURChar
            sets the upper right hand corner of the widget's box to the given character.

       setCDKAlphalistVerticalChar
            sets the vertical drawing character for the box to the given character.

KEY BINDINGS

       When the widget is activated there are several default key bindings which  will  help  the
       user  enter  or  manipulate the information quickly.  Since this widget is built from both
       the scrolling list widget and the entry field widget, the key bindings are  the  same  for
       the respective fields.  The extra key bindings are listed below.

                        ┌────────────────┬─────────────────────────────────────┐
                        │KeyAction                              │
                        ├────────────────┼─────────────────────────────────────┤
                        ├────────────────┼─────────────────────────────────────┤
                        │Up Arrow        │ Scrolls  the  scrolling list up one │
                        │                │ line.                               │
                        ├────────────────┼─────────────────────────────────────┤
                        │Down Arrow      │ Scrolls the scrolling list down one │
                        │                │ line.                               │
                        ├────────────────┼─────────────────────────────────────┤
                        │Page Up         │ Scrolls  the  scrolling list up one │
                        │                │ page.                               │
                        ├────────────────┼─────────────────────────────────────┤
                        │CTRL-B          │ Scrolls the scrolling list  up  one │
                        │                │ page.     Page   Down/Scrolls   the │
                        │                │ scrolling list down one page.       │
                        ├────────────────┼─────────────────────────────────────┤
                        │CTRL-F          │ Scrolls the scrolling list down one │
                        │                │ page.                               │
                        ├────────────────┼─────────────────────────────────────┤
                        │Tab             │ Tries  to  complete the word in the │
                        │                │ entry field.  If the  word  segment │
                        │                │ is  not unique then the widget will │
                        │                │ beep and present a  list  of  close │
                        │                │ matches.                            │
                        ├────────────────┼─────────────────────────────────────┤
                        │Return          │ Returns   the  word  in  the  entry │
                        │                │ field.  It  also  sets  the  widget │
                        │                │ data exitType to vNORMAL.           │
                        ├────────────────┼─────────────────────────────────────┤
                        │Escape          │ Exits the widget and returns a NULL │
                        │                │ pointer.  It also sets  the  widget │
                        │                │ data exitType to vESCAPE_HIT.       │
                        └────────────────┴─────────────────────────────────────┘

SEE ALSO

       cdk(3), cdk_binding(3), cdk_display(3), cdk_position(3), cdk_screen(3)

NOTES

       This widget is created from the scrolling list widget and the entry field widget.  This is
       a good example on how to build your own widgets using the base widgets  provided  in  this
       distribution.

                                                                                 cdk_alphalist(3)