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/*
* File......: ACH2TB.PRG
* Author....: Steve Kolterman
* CIS ID....: 76320,37
* Date......: $Date: 17 Oct 1992 16:26:12 $
* Revision..: $Revision: 1.4 $
* Log file..: $Logfile: C:/nanfor/src/ach2tb.prv $
*
* This is an original work by Steve Kolterman and is placed in the
* public domain.
*
* Modification history:
* ---------------------
*
* $Log: C:/nanfor/src/ach2tb.prv $
*
* Rev 1.4 17 Oct 1992 16:26:12 GLENN
* Leo cleaned up the documentation block.
*
* Rev 1.3 07 Oct 1992 23:31:10 GLENN
* Latest Kolterman updates.
*
* Rev 1.2 15 Aug 1991 23:17:48 GLENN
* Last minute fix sent in by Steve Kolterman
*
* Rev 1.1 15 Aug 1991 23:06:16 GLENN
* Forest Belt proofread/edited/cleaned up doc
*
* Rev 1.0 14 Jun 1991 04:14:14 GLENN
* Initial revision.
*
*/
/* $DOC$
* $FUNCNAME$
* FT_Ach2tb()
* $CATEGORY$
* Menus/Prompts
* $ONELINER$
* Replace ACHOICE() with a Tbrowse object & multiple features.
* $SYNTAX$
* FT_Ach2tb( <nToprow>,<nTopcol>[,<nBotrow>][,<nBotcol>],<aArrey>, ;
* [<cBoxtype>],[<cBoxcolor>],[<cBoxtitle>],[<nTitlePos>], ;
* [<cUselcolor>],[<cTitlecolor>],[<cBarcolor>],[<cHkcolor>], ;
* [<lShadow>],[<lExecute>],[<nMsgrow>],[<nMsgcol>], ;
* [<cMsg.color>],[cElevbar],[cEbarcolor],[<cEbarside>], ;
* [<cNoSelcolor>],[<cTagch>],[<nStartelem>],[<lRscreen>], ;
* [<nTimeout>],[<nTimeoutval>],[<cUserfunc>] )
* --> nOption
*
* $ARGUMENTS$
*
* <nToprow> is the top row of the box to be drawn. Required.
*
* <nTopcol> is the top column of the box to be drawn. Required.
*
* <nBotrow> is the bottom row of the box to be drawn. The default is
* <nToprow>+Len(<aArrey>)+1 or maxrow()-2, whichever is less.
*
* <nBotcol> is the bottom column of the box to be drawn. The default
* is <nTopcol>+width of the widest element in <aArrey> +2.
*
* It's been pointed out that the number of commas required to default
* the <nBotrow> and <nBotcol> params. is at least slightly confusing.
* So, some documentation on the requirements:
* Default both: 7,9,, ARRAY:
* Default <nBotrow>, specify <nBotcol>: 7,9,,20 ARRAY:
* Default <nBotcol>, specify <nBotrow>: 7,9,15, ARRAY:
*
* <aArrey> is the arrey of options to present to the user. Each
* element can hold as many as five subelements, or as few as one.
* Required. Additional documentation below.
*
* <cnBoxtype> is the type of box to draw. Uses DispBox(). The
* default is a double-line box.
*
* <cBoxcolor> is the color with which to draw the box. The default is
* Setcolor().
*
* <cBoxtitle> is title of the box drawn on <nToprow>. The default is
* no title.
*
* <nTitlepos> is the starting column position (to the right of
* <nTopcol>) at which to draw <cBoxtitle>. The default is 1.
*
* <cUselcolor> is the color with which to draw unselected options.
* The default is Setcolor().
*
* <cTitlecolor> is the color with which to draw the box title. The
* default is yellow on red.
*
* <cBarcolor> is the color with which to draw the selection bar.
* The default is yellow on black.
*
* <cHkcolor> is the default color with which to draw the hotkeys for
* for each option. This is used when no hotkey color is supplied
* in <aArrey>. The default is hiwhite on the current background
* color.
*
* <cShadow> is a character string, either "L" or "R" (for left or
* right) to designate the side of the box where a shadow will appear.
* Leave this NIL to avoid drawing a shadow. You might also leave
* this NIL if you choose to use a .C or .ASM shadow function, which
* is a good idea. Shadoww(), included below, is flat-out SLOW.
*
* <lExecute> turn on/off execution of option when first letter is
* pressed. Rule: setting in element 5 of each <aArrey> subarray
* overrides <lexecute>. If that element is left NIL, the <lexecute>
* setting is used. If <lexecute> is not passed and element 5 is NIL,
* auto execution is turned ON.
*
* <nMsgrow> is the row on which to draw a message for each option.
* The default is two rows below the bottom of the box.
*
* <nMsgcol> is the column at which to draw a message for each option.
* The default is <nTopcol> +2. To CENTER the message, pass "C".
*
* <cMsgcolor> is the default color with which to draw messages. This
* color is used when element 4 of each <aArrey> subarray is left NIL.
* The default is Setcolor().
*
* <cElevbar> is the ASCII character to use as the elevator bar drawn
* on the box. Leave this NIL to draw no elevator bar.
*
* <cEbarcolor> is the color with which to draw the elevator bar.
* This is ignored if <cElevbar> is NIL.
*
* <cEbarside> is a character string, either "L" or "R" (for left or
* right) to designate the side of the box on which to draw the
* elevator bar. This is ignored if <cElevbar> is NIL.
*
* <cNoselcolor> is the color with which to draw unselectable options.
* The default is white on black.
*
* <cTagchar> is the ASCII character to use to draw tags that would
* appear to the right of each option. The default is *DIS*abled
* tagging. The default tag is "√" (chr(251)).
*
* <nStartelem> is the number of the option where the selection bar
* will first be placed. Leave this NIL to begin at option 1.
*
* <lRestscrn> is a logical to designate whether or not the screen
* coordinates occupied by the box and/or shadow should be restored
* before FT_Ach2tb() returns. The default is .T.
*
* <nTimeout> is the number of seconds after which FT_ACH2TB() will
* timeout and return to the function/proced. which called it. The
* default is 0.
*
* <nTimeoutVal> is an optional alternative numeric value FT_ACH2TB() will
* RETURN when/if it times out. The default is the current element
* number.
*
* <bUserfunc> is a code block containing a function call to be
* executed after each key press. You need to write just two formal
* parameters to allow the run-time passing of the key pressed and the
* current element number, e.g.:
* { |key,num| Myfunc( key,num [,other params.] ) }
* Unlimited extra parameters may be passed. Of course, make certain
* to also write 'receptors' for them in 'Myfunc()' itself...as in the
* above example. The default is NO user function.
*
* $RETURNS$
* the number of the selected option, or 0 if [Esc] is pressed.
*
* $DESCRIPTION$
* FT_Ach2tb() is a greatly enhanced, fully featured, and now mouse-
* supported replacement for Achoice(), based on a Tbrowse object.
* Each element of <aArray> (the array you pass to it) is itself an
* array. Each element can solely composed of "Option" (below), but
* may be composed as follows to take full advantage of the function's
* features:
*
* Option , Message ,HotKeyPos,HotKeyColor,Selectable
* { "Utilities","System Utilities", 3 ,"+gr/b" ,.T. }
*
* All elements except for the first, the option itself, are optional.
* IF 'Message' is NIL, no message is displayed. 'HotKeyPos' is the
* position within 'Option' of the hotkey. In the example above, the
* hotkey for 'Utilities' is the first 'i', i.e., at position 3. The
* default is 1. 'HotKeyColor' is the color to use for the hotkey
* display. The default is hiwhite on the current background color.
* 'Selectable' is a logical indicating whether or not that option can
* be selected. The default is .T.
*
* The A_CHOICE() UDC in FT_ACH2T.CH makes using FT_ACH2TB() a breeze.
* The myriad of parameters can be written in any order. Only <nToprow>,
* <nTopcol>, and <aArrey> are required. See the example below.
*
* There may be some confusion over 'unselected' and 'unselectable'
* options. The former refers to any option not currently covered
* by the selection bar. The latter refers to options you have
* designated unselectable in subelement 5 of <aArray>, i.e., by
* writing .F.
*
* To enable tagging, pass any ASCII character as <cTagchar>. To
* tag/untag all options, press [SPACE]. To tag/untag individual
* options, press [+] and [-] respectively. On press of [+], browse
* moves to the next element in the display. To test for the tagged
* status of an option, use the WAS_TAGGED() UDC in FT_ACH2T.CH. To
* check the entire array for tags, use Aeval() in conjunction with
* Was_Tagged() as in the example below. When tagging is enabled, the
* string "Tags" will be written across the bottom row of the box in
* hiwhite on the current background color.
*
* Because FT_ACH2TB() takes over the [SPACE],[+], and [-] keys, it saves
* any SET KEY procedures you might have set them to, and restores same
* on returning. Any other procedures you might have SET KEYs to will
* fly when FT_ACH2TB() is called...thanks to the Inkey() replacement,
* SKINkey().
*
* The piéce de resistance of FT_ACH2TB() is its ability to execute
* a user function designed entirely by you. It is called after each
* keypress, and because it is completely open-ended, extends the
* the reach of FT_ACH2TB() to the limits of Clipper. See the docu-
* mentation under <bUserfunc> above.
*
*
* Test compile: CLIPPER ft_ach2t /n/w/m/dFT_TEST
* Test link : RTLINK FI ft_ach2t LIB nanfor /pll:base50
*
*
* Mouse support
* =============
* Mouse support is provided via the Nanforum Toolkit FT_M* functions.
* Most actions are tied to the left button. The equivalent of pressing
* [Esc] comes via the right button. These left button clicks will
* produce the designated actions:
*
* Mouse cursor outside box : K_ENTER (select option)
* Mouse cursor at box top left corner : browse:goTop()
* bottom left corner : browse:goBottom()
* top right corner : browse:pageUp()
* bottom right corner : browse:pageDown()
*
* Mouse cursor at option, tagging ENabled
* --------------------------------------------
* Selection bar moves to option, subsequent press to tag or untag. Do
* this for as many options as you want to tag/untag, then move mouse
* cursor outside the box. Press again to select. Tagging overrides
* <lExecute>, so with tagging on and <lExecute> .F., subsequent presses
* while inside the box coordinates simply tag/untag.
*
* Mouse cursor at option, tagging DISabled
* ---------------------------------------------
* IF <lExecute> is turned on, the option is immediately selected. If
* turned off, selection bar moves to option. Press again to select.
*
* To Disable Mouse Support
* ------------------------
* Compile with /dNOMOUSE
*
*
* $EXAMPLES$
* nOpt := A_CHOICE( 7,9,, ARRAY:t_array ) // the minimum
*
* nOpt := A_CHOICE( 7,9,, ;
* ARRAY:t_arrey ;
* USERFUNC:{|a,b| UserFunc(a,b,any1)};
* BOXTYPE:B_SINGLE ;
* BOXTITLE:title ;
* SHADOW:"FT" ;
* TAGCHAR:chr(17) ;
* REST_SCREEN:.F. ;
* AUTOEXEC:.F. ;
* MES_COLOR:MSG_COLOR ;
* ELEVBAR:"▒" ;
* NOSELCOLOR:"bg/n" ;
* MES_COL:"C" )
*
* Check only the RETURNed element for whether tagged:
* IF( Was_Tagged(chr(17),t_arrey,nOpt), MoreProcessing(), )
*
* Check entire 't_arrey':
* Aeval( t_arrey,{|e,n| IF( Was_Tagged(chr(17),t_arrey,n ), ;
* MoreProcessing(t_arrey),NIL ) } )
*
*
* $END$
*/
#include "inkey.ch"
#include "box.ch"
#include "setcurs.ch"
#include "ft_ach2t.ch"
#define KEY_ELEM 1
#define BLK_ELEM 2
#define AOPT 1
#define AMSG 2
#define AHOT 3
#define ACLR 4
#define ASEL 5
#define OUTTA_TIME 999
#define TIMED_OUT (lkey==OUTTA_TIME)
#define HOTKEY_PRESS (aelem > 0)
#define METHOD_PRESS (meth_num > 0 .and. meth_num <= 10)
#define TAGS (tagchar<>NIL)
#define TAG_PRESS (TAGS .and. (meth_num > 11))
#define CONTINUING (lkey <> K_ESC)
#define OUTTA_HERE EXIT
#define ATTOP (aindex==1)
#define ATBOTT (aindex==Len(arrey))
#define USEL_COLOR FG(Setcolor())+"/"+BG(Setcolor())
#define BARCOLOR if(iscolor(),"+gr/n","n/w")
#define TITLECOLOR if(iscolor(),"+gr/r","n/w")
#define DEMOCOLOR if(iscolor(),"+gr/b","+w/n")
#define HK_COLOR if(iscolor(),"w+/"+ BG(setcolor()),"w+/n")
#define SELECTABLE (if(len(arrey[aindex])==5 .and. arrey[aindex][5]<> NIL,;
arrey[aindex][5],aexec))
#define NOSELECT (len(arrey[aindex])==5 .and. !(arrey[aindex][5]))
#define DEFAULT_TAG "√"
#define UP_ARROW_POS t+2,col4bar
#define DN_ARROW_POS b-2,col4bar
#define UP_ARROW if(top_elem > 1,chr(24),chr(25))
#define DN_ARROW if(bot_elem < num_elems,chr(25),chr(24))
#define GOING_UP (meth_num==10 .or. Ltrim(str(meth_num)) $ "2468")
#define GOING_DOWN (Ltrim(str(meth_num)) $ "13579")
#define MESG_LEN aMsgdata[1]
#define MESG_COL aMsgdata[2]
#xtranslate DISPMSG(<r>,<c>,<msg>[,<color>]) => ;
SetPos(<r>,<c>); DispOut(<msg>[,<color>])
#translate Clear([<t>,<l>,<b>,<r>]) => ;
SCROLL([<t>,<l>,<b>,<r>])
#command DEFAULT <p> TO <val> [,<pn> TO <valn>] => ;
IF( <p> == NIL, <p> := <val>, ) ;
[; IF( <pn> == NIL, <pn> := <valn>,) ]
#command STABILIZE <o> => WHILE !<o>:stabilize() ; ENDDO
#ifndef K_SPACEBAR
#define K_SPACEBAR 32
#endif
#ifndef K_PLUS
#define K_PLUS 43
#define K_MINUS 45
#endif
STATIC aMsgData[2],aSaveArr:= {},oSaveobj
#ifdef FT_TEST
Function Test( passes )
// Item Msg HotKeyPos/HotkeyColor/Selectable
LOCAL t_arrey:= { {"Larry" ,"larry" , ,"w+/b" },;
{"Dick" ,"dick" , ,"b/r" },;
{"Harry" , , 3, ,.F. },;
{"Steve" ,"steve" , 4,"g/bg" },;
{"Michelle","michelle" },;
{"Barnabas", , 6,"gr+/w" },;
{"Fred" ,"fred" },;
{"Lisa" ,"lisa" , 3,"n/r" },;
{"Eleanor" ,"eleanor" , 4,"bg/r" },;
{"Anthony" ,"anthony" , 3 },;
{"Charles" ,"charles" , , ,.F. },;
{"Ollie" ,"ollie" , 4,"r/w" },;
{"George" , , 5 },;
{"Paula" ,"paula" },;
{"Jack" ,"jack" , 4 },;
{"Quinten" ,"quinten" },;
{"Nancy" ,"nancy" , 5,"w/n" },;
{"Warren" ,"warren" , 1,"n/gr*" } }
LOCAL t_arrey2:= {{"Warren" ,"warren" , ,"w+/b" },;
{"Charles" ,"charles" },;
{"Ollie" ,"ollie" , 4,"r/w" },;
{"George" , , 5 },;
{"Paula" ,"paula" , 3,"gr+/bg" },;
{"Harry" , , 3, ,.F. },;
{"Michelle","michelle" , ,"gr+/gr" },;
{"Anthony" ,"anthony" , 2 } }
LOCAL title:= " SK Test ",ret1,xx,o_color:= Setcolor( DEMOCOLOR ),o_blink
LOCAL any1:= "User function called!",ret2
LOCAL any2:= "User function2 called!"
DEFAULT passes to 3; passes:= IF(valtype(passes)=="C",val(passes),passes)
Clear()
o_blink:= SetBlink(.F.)
#ifndef NOMOUSE
FT_MReset() ; FT_MCursor(.T.)
#endif
FOR xx:= 1 to passes
ret1:= A_CHOICE( 7,9,, ARRAY:t_arrey TITLEPOS:2 START_ELEM:ret1 ;
USERFUNC:{|a,b| UserFunc(a,b,any1,.F.,1,.T.)} ;
BOXTYPE:B_SINGLE BOXTITLE:title SHADOW:"FT" TAGCHAR:chr(17);
REST_SCREEN:.F. AUTOEXEC:.F. MES_COLOR:"+w/b" ELEVBAR:"▒" )
@ 1,0 say "Returned element "+Ltrim(str(ret1))+" "
IF ret1 > 0
@ 2,0 say "That was "+IF( Was_Tagged(chr(17),t_arrey,ret1) ,;
"a Tagged","an UNtagged")+" element "
ENDIF
@ 3,0 say "Press, Please "; inkey(0)
Clear()
ret2:= A_CHOICE( 5,9,20,40 ARRAY:t_arrey2 BOXTYPE:B_DOUBLE ELEVBAR:"░" ;
BOXTITLE:" SK Test2 " AUTOEXEC:.T. ELEVBAR_COLOR:"+w/r" ;
MES_COLOR:"+w/gr" USERFUNC:{|a,b| UserFunc(a,b,any2,.T.,3,.F.,4)} ;
REST_SCREEN:.F. ELEVBAR_SIDE:"R" TIME_OUT:4 MES_COL:"C" ;
START_ELEM:3 SHADOW:"L" BAR_COLOR:"+r/gr*" TIME_OUT VALUE:-999 )
@ 1,0 say "Returned element "+Ltrim(str(ret2))+" "
IF ret2 > 0
@ 2,0 say "That was "+IF( Was_Tagged(DEFAULT_TAG,t_arrey2,ret2) ,;
"a Tagged","an UNtagged")+" element "
ENDIF
@ 3,0 say "Press, Please "; inkey(0)
Clear()
NEXT
SetBlink(o_blink)
QUIT
RETURN NIL
#endif
FUNCTION FT_Ach2tb( t,l,b,r,arrey,boxtp,boxcolor,boxttl,ttlpos,uselcolor,;
ttlcolor,barcolor,hkcolor,shad,aexec,msg_row,msg_col,msg_color,;
ebar,ebarcolor,ebarside,noselcolor,tagchar,start_elem,r_screen,;
timeout,timeout_val,u_func )
LOCAL o_curs,lkey:= 0,meth_num:= 0,num_elems:= Len(arrey),ach_scrn,;
o_color,aelem:= 0,ex_req:= .F.,uf_cont:= .T.,top_elem,bot_elem,;
dm_color,o_blink,first_entry:= .T.,col4bar,didtag:=.F.,aindex, ;
a_chscrn,o_row:= Row(),o_col:= Col(),hotkeys[3],ab_methods,ab,;
lDecr:= .F.,lCansel:= .T.,dir:= "D"
DEFAULT boxtp TO B_DOUBLE, ttlcolor TO TITLECOLOR,;
barcolor TO BARCOLOR, r_screen TO .T. ,;
msg_col TO l+2, noselcolor TO "w/n" ,;
msg_color TO USEL_COLOR, boxcolor TO Setcolor(),;
uselcolor TO USEL_COLOR, aexec TO .T. ,;
ebarcolor TO Setcolor(), ;
ebarside TO "L", start_elem TO 1 ,;
timeout TO 0, ttlpos TO 1
o_curs := SetCursor(SC_NONE)
SR_keys( "S",hotkeys )
IF b==NIL
b:= IF( (t+Len(arrey)+1) >= maxrow()-2,maxrow()-2,(t+Len(arrey)+1) )
ENDIF
DEFAULT msg_row TO b+2
r:= PrepArray( arrey,l,r,TAGS,tagchar )
ach_scrn := SaveScreen( t,l-2,b+2,r+2 )
IF arrey==aSaveArr
aindex:= oSaveobj:cargo[1]
ab:= oSaveObj ; ab:inValidate()
ELSE
aindex:= 1
ab:= tbrowsenew( t+1,l+1,b-1,r-1 )
ab:addcolumn(tbcolumnnew("",{|| arrey[aindex][AOPT]} ))
ab:getcolumn(1):width := (r-1 -l)
ab:gotopblock := {|| aindex := 1}
ab:gobottomblock := {|| aindex := num_elems}
ab:skipblock := {|n| ASkip( n,@aindex,arrey )}
ab:colorspec += ","+uselcolor+","+barcolor+","+noselcolor
ab:getcolumn(1):colorblock:= { || ;
IF(NOSELECT,{8},{6}) ,;
ab:getcolumn(1):defcolor:= IF(NOSELECT,{8,8},{6,7}) }
ab:cargo:= Array(1)
ENDIF
aSaveArr:= AClone(arrey)
lCanSel:= ( Ascan(arrey,{|e| Len(e)==ASEL .and. (e[ASEL]==NIL ;
.or. e[ASEL]) }) ) == 0
ab_methods:= Curs_Methods()
PaintBox( t,l,b,r,boxtp,boxcolor,boxttl,ttlcolor,ttlpos,shad,TAGS )
col4bar := IF(upper(ebarside)=="L",l,r)
IF( ebar <> NIL,ElevBar( t+1,col4bar,b,ebar,ebarcolor,ebarside ), )
ab:autolite(.F.)
WHILE CONTINUING
DispBegin()
STABILIZE ab
IF lCanSel // at least one option is selectable.
WHILE NOSELECT
IF( dir=="U",IF(ATTOP,ab:goBottom(),ab:up()) ,;
IF(ATBOTT,ab:goTop(),ab:down() ) )
STABILIZE ab
ENDDO
ENDIF
top_elem:= 1+aindex-ab:rowPos; bot_elem:= top_elem+ab:rowcount-1
IF first_entry .and. start_elem > 1
dir:= HotKeyPress( ab,arrey,start_elem,aindex,top_elem,bot_elem )
aindex:= start_elem
top_elem:= 1+aindex-ab:rowPos; bot_elem:= top_elem+ab:rowcount-1
ENDIF
HotKeyColor( t,l,top_elem,arrey,ab:rowcount,hkcolor )
DispMsgg( msg_row,msg_col,arrey,aindex,msg_color )
IF ebar <> NIL
DispMsg( UP_ARROW_POS,UP_ARROW,ebarcolor )
DispMsg( DN_ARROW_POS,DN_ARROW,ebarcolor )
ENDIF
ab:hilite()
DispEnd()
// idle mode...of sorts.
IF valtype(u_func)=="B"
uf_cont:= Eval( u_func,lkey,IF(didtag .and. lDecr,aindex-1,aindex) )
ENDIF
IF ex_req .or. !uf_cont; OUTTA_HERE; ELSE; lkey:= 0; ENDIF
**************************************************************************
lkey := SKInkey( timeout,ab,arrey,aindex,t,l,b,r,TAGS,tagchar,aexec )
**************************************************************************
meth_num := Ascan( ab_methods, {|e| lkey == e})
aelem := Ascan( arrey,{|e| IF(Len(e) >= AHOT .and. e[AHOT]<>NIL,;
upper(chr(lkey)) == upper(subs(Ltrim(e[AOPT]),e[AHOT],1)) ,;
upper(chr(lkey)) == upper(left(Ltrim(e[AOPT]),1)) ) } )
DO CASE
CASE TIMED_OUT
ex_req:= .T. ; timeout_val:= IF(timeout_val==NIL,aindex,timeout_val)
CASE HOTKEY_PRESS
dir := HotKeyPress(ab,arrey,aelem,aindex,top_elem,bot_elem)
ex_req:= SELECTABLE; aindex:= aelem
CASE METHOD_PRESS .or. lkey==K_ENTER
ExecKey( lKey,ab,ATTOP,ATBOTT )
ex_req:= ((lkey==K_ENTER) .and. !NOSELECT)
CASE TAG_PRESS
didtag:= TagPress( ab,arrey,aindex,lkey,tagchar,@lDecr )
ENDCASE
dir := IF(GOING_UP,"U",IF(GOING_DOWN,"D",dir) )
ex_req:= IF( lkey==0,.T.,ex_req ) ; first_entry:= .F.
ENDDO
ab:cargo[1]:= aindex ; oSaveobj:= ab
Aeval( arrey,{|e| e[AOPT]:= Ltrim(e[AOPT]) } )
SetPos(o_row,o_col); SetCursor(o_curs)
IF( r_screen,RestScreen( t,l-2,b+2,r+2,ach_scrn ), )
SR_keys( "R",hotkeys ) ; aMsgData:= Array(2)
RETURN IF( lkey==K_ESC, 0, IF(TIMED_OUT,timeout_val,aindex) )
************************************************************************
STATIC FUNCTION Askip(num_elems, aindex, arrey)
LOCAL save_aindex := aindex
aindex:= IF( aindex+num_elems > Len(arrey), Len(arrey),;
IF( aindex+num_elems < 1, 1, aindex+num_elems ))
RETURN (aindex - save_aindex)
*************************************************************************
STATIC FUNCTION HotKeyPress( ab,arrey,elem,aindex,top_elem,bot_elem )
LOCAL cur_elem:= aindex,new_elem:= elem,dest,dir:= "D"
WHILE cur_elem < new_elem // descending
dest:= MIN( new_elem,bot_elem ) ; dir:= "D"
WHILE cur_elem < dest; ab:down(); cur_elem++; ENDDO // speeding
STABILIZE ab
WHILE cur_elem < new_elem
ab:down() ; STABILIZE ab
cur_elem++
ENDDO
ENDDO
WHILE cur_elem > new_elem // ascending
dest:= MAX( new_elem,top_elem ) ; dir:= "U"
WHILE cur_elem > dest; ab:up(); cur_elem--; ENDDO // speeding
STABILIZE ab
WHILE cur_elem > new_elem
ab:up() ; STABILIZE ab
cur_elem--
ENDDO
ENDDO
RETURN dir
*************************************************************************
STATIC FUNCTION DispMsgg( r,c,arrey,pos,msg_color )
LOCAL color2use
IF MESG_LEN==NIL ; MESG_LEN:= 0 ; MESG_COL:= 99; ENDIF
IF( MESG_LEN > 0,Clear( r,MESG_COL,r,MESG_COL+MESG_LEN -1 ), )
IF Len(arrey[pos]) >= AMSG .and. arrey[pos][AMSG] <> NIL // if msg. to disp.
color2use:= IF(Len(arrey[pos]) >= ACLR .and. arrey[pos][ACLR]<>NIL,;
arrey[pos][ACLR],msg_color)
IF valtype(c)== "C" .and. c=="C" // indicating Centering
c:= Int( ((maxcol()+1)/2) - (Len(arrey[pos][AMSG])/2) )
ENDIF
DispMsg( r,c,arrey[pos][AMSG],color2use )
MESG_LEN:= Len(arrey[pos][AMSG]) ; MESG_COL:= c
ENDIF
RETURN NIL
*************************************************************************
/*
this is here for test purposes. the default is NO user func.
*/
#ifdef FT_TEST
FUNCTION UserFunc( key,elem_num,anything,aexec,st_elem,tag,tmout )
LOCAL ret_val:= .T.
DEFAULT tmout TO 0
@ 09,45 say " LASTKEY: "+Ltrim(str(key))+" "
@ 10,45 say "CURRENT ELEMENT NUM: "+Ltrim(str(elem_num))+" "
@ 11,45 say " AUTO-EXECUTION IS: "+if(aexec,"ON ","OFF")
@ 12,45 say "STARTING AT ELEMENT: "+ltrim(str(st_elem))
@ 13,45 say " TAGGING IS: "+if(tag,"ENABLED ","DISABLED")
@ 14,45 say " TIMEOUT: "+if(tmout >0,ltrim(str(tmout))+" secs. ",;
"INACTIVE ")
IF anything <> NIL; @ 16,45 say anything; ENDIF
/*
return .F. if you want to leave FT_ACH2TB() after whatever
processing you do here.
*/
RETURN (ret_val)
#endif
**************************************************************************
#define ELEM2USE arrey[top_elem+i]
#define CANT_SELECT (len(ELEM2USE)==5 .and. !ELEM2USE[ASEL])
STATIC FUNCTION HotKeyColor( t,l,top_elem,arrey,rowcount,hkcolor )
LOCAL i:= 0,color2use,col2use,charpos,xx,nUpper:= MIN(Len(arrey),rowcount)
FOR xx:= 1 TO nUpper
color2use:= IF( Len(ELEM2USE) >=ACLR .and. ELEM2USE[ACLR]<>NIL,;
ELEM2USE[ACLR], IF(hkcolor<>NIL,hkcolor,HK_COLOR) )
col2use:= IF(len(ELEM2USE) >=AHOT .and. ELEM2USE[AHOT]<>NIL,;
l+1+ELEM2USE[AHOT],l+2)
charpos:= IF(len(ELEM2USE) >=AHOT .and. ELEM2USE[AHOT]<>NIL,;
ELEM2USE[AHOT],1 )
IF !CANT_SELECT
SetPos( t+xx,col2use )
DispOut( SUBS(Ltrim(ELEM2USE[AOPT]),charpos,1),color2use )
ENDIF
i++
NEXT
RETURN NIL
****************************************************************************
STATIC FUNCTION Curs_Methods()
RETURN ( { ;
K_DOWN, ;
K_UP, ;
K_PGDN, ;
K_PGUP, ;
K_CTRL_PGDN,;
K_CTRL_PGUP,;
K_CTRL_END ,;
K_CTRL_HOME,;
K_END, ;
K_HOME, ;
K_ENTER, ;
K_SPACEBAR, ;
K_PLUS, ;
K_MINUS } )
****************************************************************************
STATIC FUNCTION ExecKey( lKey,ab,lTop,lBot )
DO CASE
CASE lKey==K_DOWN ; IF(lBot,ab:goTop(),ab:down())
CASE lKey==K_UP ; IF(lTop,ab:goBottom(),ab:up())
CASE lKey==K_PGDN ; IF(lBot,ab:goTop(),ab:pagedown())
CASE lKey==K_PGUP ; IF(lTop,ab:goBottom(),ab:pageup())
CASE lKey==K_CTRL_PGDN .or. lKey==K_CTRL_END .or. lKey==K_END
IF(lBot,ab:goTop(),ab:gobottom())
CASE lKey==K_CTRL_PGUP .or. lKey==K_CTRL_HOME .or. lKey==K_HOME
IF(lTop,ab:goBottom(),ab:goTop())
ENDCASE
RETURN NIL
****************************************************************************
STATIC FUNCTION ElevBar( t,col4bar,b,ebar,bcolor )
LOCAL c:= 0
Aeval( Array(b-t),{ |e,n| SetPos(t+c,col4bar),DispOut(ebar,bcolor),c++ })
RETURN NIL
****************************************************************************
#define TARGET arrey[pos][AOPT]
#define TAGGED (tagchar $TARGET)
#define AEV_TARG arrey[n][AOPT]
#define AEV_TAGD (tagchar $AEV_TARG)
STATIC FUNCTION TagPress( ab,arrey,pos,lkey,tagchar,lDecr )
LOCAL didtag:= .F.
IF (lkey==K_PLUS .and. !TAGGED) .or. (lkey==K_MINUS .and. TAGGED)
TARGET:= IF( (lkey==K_PLUS .and. !TAGGED) ,;
Left(TARGET,Len(TARGET)-1)+tagchar ,;
IF( (lkey==K_MINUS .and. TAGGED) ,;
Strtran(TARGET,tagchar," ") ,;
TARGET ))
ab:refreshcurrent(); didtag:= .T.
IF lKey==K_PLUS .and. TAGGED
ab:down() ; lDecr:= (pos < Len(arrey))
ENDIF
ENDIF
IF lkey==K_SPACEBAR
IF !(Ascan(arrey,{|e| tagchar $ e[AOPT] }) > 0)
Aeval(arrey,{|e,n| AEV_TARG:= Left(AEV_TARG,Len(AEV_TARG)-1)+tagchar })
ELSE
Aeval(arrey,{|e,n| AEV_TARG:= Strtran(AEV_TARG,tagchar," ") })
ENDIF
ab:refreshall() ; didtag:= .T.
ENDIF
RETURN (didtag)
****************************************************************************
#translate CenterB( <b>,<l>,<r>,<msg>[,<color>] ) => ;
SetPos(<b>,(<l>+Int((<r>-<l> -Len(<msg>))/2) ) ) ;;
DispOut(<msg>[,<color>])
STATIC FUNCTION PaintBox( t,l,b,r,boxtp,boxcolor,boxttl,ttlcolor,ttlpos,shad,tags )
IF shad <> NIL
IF( shad=="FT",FT_Shadow( t,l+1,b,r ), )
IF( shad $"LR",Shadoww( t,l,b,r,upper(shad) ), )
ENDIF
DispBox( t,l,b,r,boxtp,boxcolor )
IF boxttl <> NIL; DispMsg( t,l+ttlpos,boxttl,ttlcolor ); ENDIF
IF tags .and. (r-l) >= Len("tags")
CenterB( b,l,r,"Tags","+w/"+BG(boxcolor) )
ENDIF
RETURN NIL
****************************************************************************
STATIC FUNCTION PrepArray( arrey,l,r,tags,tagchar )
Aeval( arrey,{|e| e[AOPT]:= " " +AllTrim( ;
IF(tags,StrTran(e[AOPT],tagchar),e[AOPT]) ) } )
IF valtype(r)=="N"
Aeval( arrey,{|e| e[AOPT]:= Padr(e[AOPT],r-l-1) })
ELSEIF (r==NIL); r:= 0
Aeval( arrey,{|e| r:= MAX( r,Len(e[AOPT]) ) })
r+= IF( !tags,(l+2),(l+3) )
IF( tags,Aeval( arrey,{|e| e[AOPT]:= Padr(e[AOPT],r-l-1) }), )
ENDIF
RETURN (r)
*****************************************************************************
STATIC FUNCTION BG( color )
LOCAL startpos:= AT("/",color)+1
LOCAL endpos:= IF( "," $ color,AT(",",color),len(color)+1 )
RETURN upper(subs( color,startpos,(endpos-startpos) ))
*****************************************************************************
STATIC FUNCTION FG( color )
RETURN upper(subs( color,1,AT("/",color)-1 ))
*****************************************************************************
STATIC FUNCTION SKInkey( nSecs,ab,arrey,aindex,t,l,b,r,tags,tagchar,aexec )
LOCAL bBlock,nKey:= 0,lLooping:= .T.
WHILE lLooping
#ifndef NOMOUSE
nKey:= Mouser( nSecs,ab,arrey,aindex,t,l,b,r,tags,tagchar,aexec )
lLooping:= .F.
IF nKey==0 .and. Nextkey() <> 0
FT_MShowcrs()
#endif
nKey:= Inkey( nSecs )
IF ( bBlock := Setkey(nKey) ) <> NIL
Eval( bBlock, Procname(1), Procline(1), Readvar(),Getactive() )
ELSE; lLooping:= .F.
ENDIF
#ifndef NOMOUSE
ENDIF
#endif
ENDDO
RETURN (nKey)
****************************************************************************
#ifndef NOMOUSE
STATIC FUNCTION Mouser( nSecs,ab,arrey,aindex,t,l,b,r,tags,tagchar,aexec )
LOCAL nR:= 0,nCurrow,nNumpos:= 0,nKey:= 0,cur_elem,pos,lLooping:= .T.,;
lDown:= .F.,nTime:= Seconds()
// while no button or key pressed.
WHILE lLooping .and. Nextkey()==0
FT_MShowcrs()
IF nSecs > 0 .and. (Seconds() >= nTime+nSecs)
nKey:= OUTTA_TIME ; lLooping:= .F.
ELSEIF FT_Mbutprs(1)==2 // right button == ESC
nKey:= K_ESC ; lLooping:= .F.
ELSEIF FT_Mbutprs(0)==1 // left button pressed
DO CASE
CASE FT_Minregion( t,l,t,l ) .or. FT_Minregion( b,l,b,l )
nKey:= IF( FT_Minregion( t,l,t,l ),K_CTRL_PGUP,; // upper left
IF( FT_Minregion( b,l,b,l ),K_CTRL_PGDN,nKey) ) // lower left
lLooping:= .F.
CASE FT_Minregion( t,r,t,r ) .or. FT_Minregion( b,r,b,r )
nKey:= IF( FT_Minregion( t,r,t,r ),K_PGUP, ; //upper right corner
IF( FT_Minregion( b,r,b,r ),K_PGDN,nKey )) //lower left corner
lLooping:= .F.
CASE !(FT_Minregion(t,l,b,r))
nKey:= K_ENTER ; lLooping:= .F.
OTHERWISE
IF FT_MInregion(t+1,l+1,b-1,r-1)
// mouse row.
nR:= FT_MgetX()
// what row does current elem occupy?
nCurrow:= ab:nTop+ab:rowPos-1
// difference between this and nR is number of positions to move.
nNumpos:= IF( nR==nCurrow,0,ABS(nR-nCurrow))
cur_elem:= arrey[ aindex+ IF( nR > nCurrow,nNumpos,-nNumpos ) ]
IF nNumpos==0
nKey:= IF(tags, ;
IF(tagchar $ cur_elem[1],K_MINUS,K_PLUS),;
K_ENTER)
lLooping:= .F.
ENDIF
IF nNumpos > 0
// if no hotkeys, we'll move ourselves and return -1.
// -1 indicating no handling in the main loop.
lDown:= (nR > nCurrow)
WHILE nR > nCurrow ; ab:down(); nCurrow++ ; ENDDO
WHILE nR < nCurrow ; ab:up() ; nCurrow-- ; ENDDO
// if element is unselectable, move one above or below.
IF Len(cur_elem)==ASEL .and. cur_elem[ASEL]<>NIL .and. ;
!cur_elem[ASEL]
IF(lDown,ab:down(),ab:up())
ENDIF
nKey:= IF(tags .or. !aexec, -1, K_ENTER)
lLooping:= .F.
ENDIF
ENDIF
ENDCASE
ENDIF
ENDDO
FT_MHidecrs()
RETURN (nKey)
#endif
****************************************************************************
STATIC FUNCTION SR_Keys( action,hotkeys )
IF action=="S"
hotkeys[1] := Setkey(K_SPACEBAR) ; Setkey(K_SPACEBAR,NIL)
hotkeys[2] := Setkey(K_PLUS) ; Setkey(K_PLUS,NIL)
hotkeys[3] := Setkey(K_MINUS) ; Setkey(K_MINUS,NIL)
ELSEIF action=="R"
Setkey(K_SPACEBAR,hotkeys[1])
Setkey(K_PLUS,hotkeys[2])
Setkey(K_MINUS,hotkeys[3])
ENDIF
RETURN NIL
****************************************************************************
STATIC FUNCTION Shadoww( t,l,b,r,side )
LOCAL bx
DEFAULT side TO "R"
l+= IF(side=="R",2,-2); r+= IF(side=="R",2,-2)
bx:= SaveScreen( ++t,l,++b,r )
RestScreen( t,l,b,r,Transf( bx,Replic("x"+chr(8),len(bx)/2) ) )
RETURN NIL