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dialogio.pas
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dialogio.pas
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// This file is part of Adlib Tracker II (AT2).
//
// AT2 is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// AT2 is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with AT2. If not, see <http://www.gnu.org/licenses/>.
unit DialogIO;
{$S-,Q-,R-,V-,B-,X+}
{$PACKRECORDS 1}
interface
uses
DOS,
{$IFDEF GO32V2}
GO32,
{$ENDIF}
{$IFDEF WINDOWS}
WINDOWS,
{$ENDIF}
StrUtils,
AdT2unit,AdT2sys,AdT2keyb,AdT2text,
TxtScrIO,StringIO,ParserIO;
type
tDIALOG_SETTING = Record
frame_type: String;
shadow_enabled: Boolean;
title_attr: Byte;
box_attr: Byte;
text_attr: Byte;
text2_attr: Byte;
keys_attr: Byte;
keys2_attr: Byte;
short_attr: Byte;
short2_attr: Byte;
disbld_attr: Byte;
contxt_attr: Byte;
contxt2_attr: Byte;
xstart: Byte;
ystart: Byte;
center_box: Boolean;
center_text: Boolean;
cycle_moves: Boolean;
all_enabled: Boolean;
terminate_keys: array[1..50] of Word;
end;
type
tMENU_SETTING = Record
frame_type: String;
frame_enabled: Boolean;
shadow_enabled: Boolean;
posbar_enabled: Boolean;
title_attr: Byte;
menu_attr: Byte;
text_attr: Byte;
text2_attr: Byte;
default_attr: Byte;
short_attr: Byte;
short2_attr: Byte;
disbld_attr: Byte;
contxt_attr: Byte;
contxt2_attr: Byte;
topic_attr: Byte;
hi_topic_attr: Byte;
topic_mask_chr: Set of Char;
center_box: Boolean;
cycle_moves: Boolean;
edit_contents: Boolean;
reverse_use: Boolean;
show_scrollbar: Boolean;
topic_len: Byte;
fixed_len: Byte;
homing_pos: Longint;
terminate_keys: array[1..50] of Word;
end;
type
tDIALOG_ENVIRONMENT = Record
keystroke: Word;
context: String;
input_str: String;
xpos,ypos: Byte;
xsize,ysize: Byte;
cur_item: Byte;
ext_proc: procedure;
end;
type
tMENU_ENVIRONMENT = Record
v_dest: tSCREEN_MEM_PTR;
keystroke: Word;
context: String;
unpolite: Boolean;
winshade: Boolean;
intact_area: Boolean;
edit_pos: Byte;
curr_page: Word;
curr_pos: Word;
curr_item: String;
ext_proc: procedure;
ext_proc_rt: procedure;
refresh: procedure;
do_refresh: Boolean;
own_refresh: Boolean;
preview: Boolean;
fixed_start: Byte;
descr_len: Byte;
descr: Pointer;
is_editing: Boolean;
xpos,ypos: Byte;
xsize,ysize: Byte;
desc_pos: Byte;
hlight_chrs: Byte;
end;
const
{$IFDEF GO32V2}
FILENAME_SIZE = 12;
DIR_SIZE = 80;
PATH_SIZE = 80;
{$ELSE}
FILENAME_SIZE = 255;
DIR_SIZE = 170;
PATH_SIZE = 255;
{$ENDIF}
type
tFSELECT_ENVIRONMENT = Record
last_file: String[FILENAME_SIZE];
last_dir: String[DIR_SIZE];
end;
const
dl_setting: tDIALOG_SETTING =
(frame_type: frame_single;
shadow_enabled: TRUE;
title_attr: $0f;
box_attr: $07;
text_attr: $07;
text2_attr: $0f;
keys_attr: $07;
keys2_attr: $70;
short_attr: $0f;
short2_attr: $70;
disbld_attr: $07;
contxt_attr: $0f;
contxt2_attr: $07;
xstart: 01;
ystart: 01;
center_box: TRUE;
center_text: TRUE;
cycle_moves: TRUE;
all_enabled: FALSE;
terminate_keys: ($011b,$1c0d,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000));
const
mn_setting: tMENU_SETTING =
(frame_type: frame_single;
frame_enabled: TRUE;
shadow_enabled: TRUE;
posbar_enabled: TRUE;
title_attr: $0f;
menu_attr: $07;
text_attr: $07;
text2_attr: $70;
default_attr: $0f;
short_attr: $0f;
short2_attr: $70;
disbld_attr: $07;
contxt_attr: $0f;
contxt2_attr: $07;
topic_attr: $07;
hi_topic_attr: $0f;
topic_mask_chr: [];
center_box: TRUE;
cycle_moves: TRUE;
edit_contents: FALSE;
reverse_use: FALSE;
show_scrollbar: TRUE;
topic_len: 0;
fixed_len: 0;
homing_pos: 0;
terminate_keys: ($011b,$1c0d,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000,
$0000,$0000,$0000,$0000,$0000));
var
dl_environment: tDIALOG_ENVIRONMENT;
mn_environment: tMENU_ENVIRONMENT;
fs_environment: tFSELECT_ENVIRONMENT;
function Dialog(text,keys,title: String; spos: Byte): Byte;
function Menu(var data; x,y: Byte; spos: Word;
len,len2: Byte; count: Word; title: String): Word;
function Fselect(mask: String): String;
function HScrollBar(dest: tSCREEN_MEM_PTR; x,y: Byte; size: Byte; len1,len2,pos: Word;
atr1,atr2: Byte): Word;
function VScrollBar(dest: tSCREEN_MEM_PTR; x,y: Byte; size: Byte; len1,len2,pos: Word;
atr1,atr2: Byte): Word;
procedure DialogIO_Init;
implementation
type
tDBUFFR = array[1.. 100] of Record
str: String;
pos: Byte;
key: Char;
use: Boolean;
end;
type
tMBUFFR = array[1..16384] of Record
key: Char;
use: Boolean;
end;
var
idx,idx2,idx3,pos,max,mx2,num,nm2,
xstart,ystart,count,
ln,ln1,len2b,atr1,atr2,
page,first,last,temp,temp2,opage,opos: Word;
old_fr_shadow_enabled: Boolean;
key: Word;
str: String;
solid: Boolean;
qflg: Boolean;
dbuf: tDBUFFR;
mbuf: tMBUFFR;
contxt: String;
function OutKey(str: String): Char;
var
result: Char;
begin
If (SYSTEM.Pos('~',str) = 0) then result := '~'
else If (str[SYSTEM.Pos('~',str)+2] <> '~') then result := '~'
else result := str[SYSTEM.Pos('~',str)+1];
OutKey := result;
end;
function ReadChunk(str: String; pos: Byte): String;
var
result: String;
begin
Delete(str,1,pos-1);
If (SYSTEM.Pos('$',str) = 0) then result := ''
else result := Copy(str,1,SYSTEM.Pos('$',str)-1);
ReadChunk := result;
end;
function Dialog(text,keys,title: String; spos: Byte): Byte;
procedure SubPos(var p: Word);
var
temp: Word;
begin
temp := p;
If (temp > 1) and dbuf[temp-1].use then Dec(temp)
else If (temp > 1) then begin Dec(temp); SubPos(temp); end;
If dbuf[temp].use then p := temp;
end;
procedure AddPos(var p: Word);
var
temp: Word;
begin
temp := p;
If (temp < nm2) and dbuf[temp+1].use then Inc(temp)
else If (temp < nm2) then begin Inc(temp); AddPos(temp); end;
If dbuf[temp].use then p := temp;
end;
procedure ShowItem;
begin
If (idx2 = 0) then EXIT;
If (idx2 <> idx3) then
ShowCStr(screen_ptr,dbuf[idx3].pos,ystart+num+1,dbuf[idx3].str,
dl_setting.keys_attr,dl_setting.short_attr);
ShowCStr(screen_ptr,dbuf[idx2].pos,ystart+num+1,dbuf[idx2].str,
dl_setting.keys2_attr,dl_setting.short2_attr);
idx3 := idx2;
end;
function RetKey(code: Byte): Word;
var
temp: Byte;
begin
RetKey := 0;
For temp := 1 to nm2 do
If (UpCase(dbuf[temp].key) = UpCase(CHR(code))) then
begin
RetKey := temp;
BREAK;
end;
end;
function CurrentKey(pos: Byte): Byte;
var
idx,temp: Byte;
begin
temp := 0;
For idx := 1 to nm2 do
If (pos in [dbuf[idx].pos,dbuf[idx].pos+CStrLen(dbuf[idx].str)-1]) then
temp := idx;
CurrentKey := temp;
end;
begin
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'DIALOGIO.PAS:Dialog';
{$ENDIF}
pos := 1;
max := Length(title);
num := 0;
ScreenMemCopy(screen_ptr,ptr_scr_backup);
HideCursor;
Repeat
str := ReadChunk(text,pos);
Inc(pos,Length(str)+1);
If (CStrLen(str) > max) then max := CStrLen(str);
If (str <> '') then Inc(num);
until (pos >= Length(text)) or (str = '');
pos := 1;
mx2 := 0;
nm2 := 0;
If (Copy(keys,1,14) = '%string_input%') then
begin
Inc(pos,14);
str := ReadChunk(keys,pos); ln := Str2num(str,10);
If (str = '') then EXIT;
Inc(pos,Length(str)+1);
str := ReadChunk(keys,pos); ln1 := Str2num(str,10); mx2 := ln1;
If (str = '') then EXIT;
Inc(pos,Length(str)+1);
str := ReadChunk(keys,pos); atr1 := Str2num(str,16);
If (str = '') then EXIT;
Inc(pos,Length(str)+1);
str := ReadChunk(keys,pos); atr2 := Str2num(str,16);
If (str = '') then EXIT;
Inc(pos,Length(str)+1);
end
else
begin
Repeat
str := ReadChunk(keys,pos);
Inc(pos,Length(str)+1);
If (str <> '') then
begin
Inc(nm2);
dbuf[nm2].str := ' '+str+' ';
dbuf[nm2].key := OutKey(str);
If NOT dl_setting.all_enabled then dbuf[nm2].use := dbuf[nm2].key <> '~'
else dbuf[nm2].use := TRUE;
If (nm2 > 1) then
begin
dbuf[nm2].pos := dbuf[nm2-1].pos+CStrLen(dbuf[nm2-1].str)+1;
Inc(mx2,CStrLen(dbuf[nm2].str)+1);
end
else
begin
dbuf[nm2].pos := 1;
Inc(mx2,CStrLen(dbuf[nm2].str));
end;
end;
until (pos >= Length(keys)) or (str = '');
end;
If (max < mx2) then max := mx2
else
begin
ln1 := max;
If (ln < max) then ln := max;
end;
If dl_setting.center_box then
begin
xstart := (work_MaxCol-(max+4)) DIV 2+(work_MaxCol-(max+4)) MOD 2;
ystart := (work_MaxLn -(num+2)) DIV 2+(work_MaxLn -(num+2)) MOD 2;
end
else
begin
xstart := dl_setting.xstart;
ystart := dl_setting.ystart;
end;
old_fr_shadow_enabled := fr_setting.shadow_enabled;
fr_setting.shadow_enabled := dl_setting.shadow_enabled;
Frame(screen_ptr,xstart,ystart,xstart+max+3,ystart+num+2,
dl_setting.box_attr,title,dl_setting.title_attr,
dl_setting.frame_type);
fr_setting.shadow_enabled := old_fr_shadow_enabled;
dl_environment.xpos := xstart;
dl_environment.ypos := ystart;
dl_environment.xsize := max+3;
dl_environment.ysize := num+2;
pos := 1;
contxt := DietStr(dl_environment.context,max+
(Length(dl_environment.context)-CStrLen(dl_environment.context)));
ShowCStr(screen_ptr,xstart+max+3-CStrLen(contxt),ystart+num+2,
contxt,dl_setting.contxt_attr,dl_setting.contxt2_attr);
For idx := 1 to num do
begin
str := ReadChunk(text,pos);
Inc(pos,Length(str)+1);
If dl_setting.center_text then
ShowCStr(screen_ptr,xstart+2,ystart+idx,
ExpStrL(str,Length(str)+(max-CStrLen(str)) DIV 2,' '),
dl_setting.text_attr,dl_setting.text2_attr)
else
ShowCStr(screen_ptr,xstart+2,ystart+idx,
str,dl_setting.text_attr,dl_setting.text2_attr);
end;
If (Copy(keys,1,14) = '%string_input%') then
begin
ThinCursor;
str := InputStr(dl_environment.input_str,
xstart+2,ystart+num+1,ln,ln1,atr1,atr2);
If is_environment.keystroke = kENTER then dl_environment.input_str := str;
dl_environment.keystroke := is_environment.keystroke;
HideCursor;
end
else
begin
For idx := 1 to nm2 do
begin
Inc(dbuf[idx].pos,xstart+(max-mx2) DIV 2+1);
If dbuf[idx].use then
ShowCStr(screen_ptr,dbuf[idx].pos,ystart+num+1,
dbuf[idx].str,dl_setting.keys_attr,dl_setting.short_attr)
else
ShowCStr(screen_ptr,dbuf[idx].pos,ystart+num+1,
dbuf[idx].str,dl_setting.disbld_attr,dl_setting.disbld_attr);
end;
If (spos < 1) then spos := 1;
If (spos > nm2) then spos := nm2;
idx2 := spos;
idx3 := 1;
If NOT dbuf[idx2].use then
begin
SubPos(idx2);
If NOT dbuf[idx2].use then AddPos(idx2);
end;
ShowItem;
ShowItem;
qflg := FALSE;
If (keys = '$') then EXIT;
Repeat
dl_environment.cur_item := idx2;
If (Addr(dl_environment.ext_proc) <> NIL) then dl_environment.ext_proc;
key := getkey;
If LookUpKey(key,dl_setting.terminate_keys,50) then qflg := TRUE;
If NOT qflg then
If (LO(key) in [$20..$0ff]) then
begin
idx := RetKey(LO(key));
If (idx <> 0) then
begin
qflg := TRUE;
idx2 := idx;
end;
end
else If NOT shift_pressed and
NOT ctrl_pressed and NOT alt_pressed then
Case key of
kLEFT: If (idx2 > 1) or
NOT dl_setting.cycle_moves then SubPos(idx2)
else begin
idx2 := nm2;
If NOT dbuf[idx2].use then SubPos(idx2);
end;
kRIGHT: If (idx2 < nm2) or
NOT dl_setting.cycle_moves then
begin
temp := idx2;
AddPos(idx2);
If (idx2 = temp) then
begin
idx2 := 1;
If NOT dbuf[idx2].use then AddPos(idx2);
end;
end
else begin
idx2 := 1;
If NOT dbuf[idx2].use then AddPos(idx2);
end;
kHOME: begin
idx2 := 1;
If NOT dbuf[idx2].use then AddPos(idx2);
end;
kEND: begin
idx2 := nm2;
If NOT dbuf[idx2].use then SubPos(idx2);
end;
end;
ShowItem;
{$IFNDEF GO32V2}
draw_screen;
{$ENDIF}
until qflg or _force_program_quit;
Dialog := idx2;
dl_environment.keystroke := key;
end;
If Addr(move_to_screen_routine) <> NIL then
begin
move_to_screen_data := ptr_scr_backup;
move_to_screen_area[1] := xstart;
move_to_screen_area[2] := ystart;
move_to_screen_area[3] := xstart+max+3+2;
move_to_screen_area[4] := ystart+num+2+1;
move_to_screen_routine;
end
else
ScreenMemCopy(ptr_scr_backup,screen_ptr);
end;
var
mnu_x,mnu_y,mnu_len,mnu_len2,mnu_topic_len: Byte;
mnu_data: Pointer;
mnu_count: Word;
var
vscrollbar_pos: Word;
function pstr(item: Word): String;
var
temp: String;
begin
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'DIALOGIO.PAS:pstr';
{$ENDIF}
If (item <= mnu_count) then
Move(pBYTE(mnu_data)[(item-1)*(mnu_len+1)],temp,mnu_len+1)
else temp := '';
If NOT solid then pstr := ExpStrR(temp,mnu_len-2,' ')
else pstr := ExpStrR(temp,mnu_len,' ');
end;
function pstr2(item: Word): String;
var
idx: Byte;
temp,result: String;
begin
If (item <= mnu_count) then
Move(pBYTE(mnu_data)[(item-1)*(mnu_len+1)],temp,mnu_len+1)
else temp := '';
If NOT solid then temp := ExpStrR(temp,mnu_len-2,' ')
else temp := ExpStrR(temp,mnu_len,' ');
If (mn_setting.fixed_len <> 0) then result := temp
else begin
result := '';
For idx := 1 to Length(temp) do
If (temp[idx] in mn_setting.topic_mask_chr) then
result := result+'`'+temp[idx]+'`'
else result := result+temp[idx];
end;
pstr2 := result;
end;
function pdes(item: Word): String;
var
temp: String;
begin
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'DIALOGIO.PAS:pdes';
{$ENDIF}
If (mn_environment.descr <> NIL) and (item <= mnu_count) then
Move(pBYTE(mn_environment.descr)[(item-1)*(mn_environment.descr_len+1)],temp,mn_environment.descr_len+1)
else temp := '';
pdes := ExpStrR(temp,mn_environment.descr_len,' ');
end;
procedure refresh;
procedure ShowCStr_clone(dest: tSCREEN_MEM_PTR; x,y: Byte; str: String;
atr1,atr2,atr3,atr4: Byte);
var
temp,
len,len2: Byte;
highlighted: Boolean;
begin
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'DIALOGIO.PAS:refresh:ShowCStr_clone';
{$ENDIF}
If NOT (mn_setting.fixed_len <> 0) then
begin
ShowC3Str(dest,x,y,str,atr1,atr2,atr1 AND $0f0+mn_setting.topic_attr AND $0f);
EXIT;
end;
highlighted := FALSE;
len := 0;
len2 := 0;
For temp := 1 to Length(str) do
If (str[temp] = '~') then highlighted := NOT highlighted
else begin
If (temp >= mn_environment.fixed_start) and
(len < mn_setting.fixed_len) then
begin
If NOT highlighted then ShowStr(dest,x+len2,y,str[temp],atr1)
else ShowStr(dest,x+len2,y,str[temp],atr2);
Inc(len);
Inc(len2);
end
else
begin
If NOT highlighted then ShowStr(dest,x+len2,y,str[temp],atr3)
else ShowStr(dest,x+len2,y,str[temp],atr4);
If (temp >= mn_environment.fixed_start) then Inc(len);
Inc(len2);
end
end;
end;
var
item_str,item_str_alt,
item_str2,item_str2_alt: String;
desc_str,desc_str2,desc_str3: String;
begin { refresh }
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'DIALOGIO.PAS:refresh';
{$ENDIF}
If (page = opage) and (idx2 = opos) and NOT mn_environment.do_refresh then EXIT
else begin
opage := page;
opos := idx2;
mn_environment.do_refresh := FALSE;
end;
If NOT mn_environment.own_refresh then
For idx := page to mnu_len2+page-1 do
begin
item_str := pstr(idx-page+1);
item_str_alt := pstr(idx);
item_str2 := pstr2(idx2+page-1);
item_str2_alt := pstr2(idx);
desc_str := pdes(idx-page+1);
desc_str2 := pdes(idx);
desc_str3 := pdes(idx2+page-1);
If (mn_environment.hlight_chrs <> 0) and (item_str <> '') then
item_str := '~'+Copy(item_str,1,mn_environment.hlight_chrs)+
'~'+Copy(item_str,mn_environment.hlight_chrs+1,Length(item_str)-mn_environment.hlight_chrs);
If (mn_environment.hlight_chrs <> 0) and (item_str_alt <> '') then
item_str_alt := '~'+Copy(item_str_alt,1,mn_environment.hlight_chrs)+
'~'+Copy(item_str_alt,mn_environment.hlight_chrs+1,Length(item_str_alt)-mn_environment.hlight_chrs);
If (mn_environment.hlight_chrs <> 0) and (item_str2 <> '') then
item_str2 := '~'+Copy(item_str2,1,mn_environment.hlight_chrs)+
'~'+Copy(item_str2,mn_environment.hlight_chrs+1,Length(item_str2)-mn_environment.hlight_chrs);
If (mn_environment.hlight_chrs <> 0) and (item_str2_alt <> '') then
item_str2_alt := '~'+Copy(item_str2_alt,1,mn_environment.hlight_chrs)+
'~'+Copy(item_str2_alt,mn_environment.hlight_chrs+1,Length(item_str2_alt)-mn_environment.hlight_chrs);
If (idx = idx2+page-1) then
ShowCStr_clone(mn_environment.v_dest,mnu_x+1,mnu_y+idx2,
ExpStrR(item_str2+desc_str3,
max+(Length(item_str2)+Length(desc_str3)-
(C3StrLen(item_str2)+CStrLen(desc_str3))),' '),
mn_setting.text2_attr,
mn_setting.short2_attr,
mn_setting.text_attr,
mn_setting.short_attr)
else
If (idx-page+1 <= mnu_topic_len) then
ShowCStr(mn_environment.v_dest,mnu_x+1,mnu_y+idx-page+1,
ExpStrR(item_str+desc_str,
max+(Length(item_str)+Length(desc_str3)-
CStrLen(item_str+desc_str)),' '),
mn_setting.topic_attr,
mn_setting.hi_topic_attr)
else
If mbuf[idx].use then
ShowC3Str(mn_environment.v_dest,mnu_x+1,mnu_y+idx-page+1,
ExpStrR(item_str2_alt+desc_str2,
max+(Length(item_str2_alt)+Length(desc_str3)-
(C3StrLen(item_str2_alt)+CStrLen(desc_str2))),' '),
mn_setting.text_attr,
mn_setting.short_attr,
mn_setting.topic_attr)
else
ShowCStr(mn_environment.v_dest,mnu_x+1,mnu_y+idx-page+1,
ExpStrR(item_str_alt+desc_str2,
max+(Length(item_str_alt)+Length(desc_str3)-
CStrLen(item_str_alt+desc_str2)),' '),
mn_setting.disbld_attr,
mn_setting.disbld_attr);
end;
If mn_setting.show_scrollbar then
vscrollbar_pos :=
VScrollBar(mn_environment.v_dest,mnu_x+max+1,mnu_y+1-mn_setting.topic_len,
temp2,mnu_count,idx2+page-1,
vscrollbar_pos,mn_setting.menu_attr,mn_setting.menu_attr);
end;
function Menu(var data; x,y: Byte; spos: Word;
len,len2: Byte; count: Word; title: String): Word;
procedure SubPos(var p: Word);
var
temp: Word;
begin
temp := p;
If (temp > 1) and mbuf[temp+page-2].use then
Dec(temp)
else If (temp > 1) then
begin
Dec(temp);
SubPos(temp);
end
else If (page > first) then
Dec(page);
If mbuf[temp+page-1].use then p := temp
else If (temp+page-1 > first) then SubPos(temp);
end;
procedure AddPos(var p: Word);
var
temp: Word;
begin
temp := p;
If (temp < len2) and (temp < last) and
mbuf[temp+page].use then
Inc(temp)
else If (temp < len2) and (temp < last) then
begin
Inc(temp);
AddPos(temp);
end
else If (page+temp <= last) then
Inc(page);
If mbuf[temp+page-1].use then p := temp
else If (temp+page-1 < last) then AddPos(temp);
end;
function RetKey(code: Byte): Word;
var
temp: Byte;
begin
RetKey := 0;
For temp := 1 to count do
If (UpCase(mbuf[temp].key) = UpCase(CHR(code))) then
begin
RetKey := temp;
BREAK;
end;
end;
procedure edit_contents(item: Word);
var
item_str,temp: String;
begin
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'DIALOGIO.PAS:Menu:edit_contents';
{$ENDIF}
is_setting.append_enabled := TRUE;
is_setting.character_set := [' '..'_','a'..'}',#128..#255]; // exclude ` and ~ characters
is_environment.locate_pos := 1;
item_str := pstr(item);
If (mn_environment.edit_pos > 0) and (mn_environment.edit_pos < max-2) then
temp := Copy(item_str,mn_environment.edit_pos+1,
Length(item_str)-mn_environment.edit_pos+1)
else
temp := CutStr(item_str);
mn_environment.is_editing := TRUE;
While (temp <> '') and (temp[Length(temp)] = ' ') do Delete(temp,Length(temp),1);
temp := InputStr(temp,x+1+mn_environment.edit_pos,y+idx2,
max-2-mn_environment.edit_pos+1,
max-2-mn_environment.edit_pos+1,
mn_setting.text2_attr,mn_setting.default_attr);
mn_environment.is_editing := FALSE;
HideCursor;
If (is_environment.keystroke = kENTER) then
begin
If (mn_environment.edit_pos > 0) and (mn_environment.edit_pos < max-2) then
temp := Copy(item_str,1,mn_environment.edit_pos)+temp
else
temp := CutStr(temp);
Move(temp,pBYTE(data)[(item-1)*(len+1)],len+1);
end;
mn_environment.do_refresh := TRUE;
refresh;
end;
begin { Menu }
{$IFDEF GO32V2}
_last_debug_str_ := _debug_str_;
_debug_str_ := 'DIALOGIO.PAS:Menu';
{$ENDIF}
If (count = 0) then
begin
Menu := 0;
EXIT;
end;
max := Length(title);
mnu_data := Addr(data);
mnu_count := count;
mnu_len := len;
If NOT mn_environment.unpolite then
ScreenMemCopy(mn_environment.v_dest,ptr_scr_backup2);
If (count < 1) then EXIT;
vscrollbar_pos := WORD_NULL;
If NOT mn_environment.preview then HideCursor;
temp := 0;
For idx := 1 to count do
begin
mbuf[idx].key := OutKey(pstr(idx));
If NOT mn_setting.reverse_use then mbuf[idx].use := mbuf[idx].key <> '~'
else mbuf[idx].use := NOT (mbuf[idx].key <> '~');
If mbuf[idx].use then temp := 1;
end;
solid := FALSE;
If (temp = 0) then
begin
For temp := 1 to count do mbuf[temp].use := TRUE;
solid := TRUE;
end;
For idx := 1 to count do
If (max < CStrLen(pstr(idx))+mn_environment.descr_len) then
max := CStrLen(pstr(idx))+mn_environment.descr_len;
If mn_setting.center_box then
begin
x := (work_MaxCol-max-2) DIV 2+(work_MaxCol-max-2) MOD 2;
y := (work_MaxLn-len2-1) DIV 2+(work_MaxLn-len2-1) MOD 2;
end;
mnu_x := x;
mnu_y := y;
len2b := len2;
mn_environment.xpos := x;
mn_environment.ypos := y;
mn_environment.xsize := max+1;
mn_environment.ysize := len2+1;
mn_environment.desc_pos := y+len2+1;
If NOT mn_environment.unpolite then
begin
old_fr_shadow_enabled := fr_setting.shadow_enabled;
fr_setting.shadow_enabled := mn_setting.shadow_enabled;
If mn_environment.intact_area then
fr_setting.update_area := FALSE;
If mn_setting.frame_enabled then
Frame(mn_environment.v_dest,x,y,x+max+1,y+len2+1,mn_setting.menu_attr,
title,mn_setting.title_attr,mn_setting.frame_type);
If mn_environment.intact_area then
fr_setting.update_area := TRUE;
fr_setting.shadow_enabled := old_fr_shadow_enabled;
contxt := DietStr(mn_environment.context,max+
(Length(mn_environment.context)-CStrLen(mn_environment.context)));
If mn_setting.frame_enabled then
ShowC3Str(mn_environment.v_dest,x+1,y+len2+1,
'`'+ExpStrL('',max-CStrLen(contxt),
mn_setting.frame_type[2])+'`'+
contxt,
mn_setting.contxt_attr,
mn_setting.contxt2_attr,
mn_setting.menu_attr);
temp2 := len2;
mnu_len2 := len2;
If (len2 > count) then len2 := count;
If (len2 < 1) then len2 := 1;
If (spos < 1) then spos := 1;
If (spos > count) then spos := count;
mn_environment.refresh := refresh;
first := 1;
last := count;
While NOT mbuf[first].use do Inc(first);
While NOT mbuf[last].use do Dec(last);
If (first <= mn_setting.topic_len) then
first := SUCC(mn_setting.topic_len);
If (spos < first) or (spos > last) then
spos := first;
idx2 := 1;
page := 1;
opage := WORD_NULL;
opos := WORD_NULL;
While (idx2+page-1 < spos) do AddPos(idx2);
end;
mnu_topic_len := mn_setting.topic_len;
If (mnu_topic_len <> 0) then
begin
mn_setting.topic_len := 0;
refresh;
mn_setting.topic_len := mnu_topic_len;
mnu_topic_len := 0;
mnu_data := mnu_data+SUCC(len)*mn_setting.topic_len;
Inc(mnu_y,mn_setting.topic_len);
Dec(len2,mn_setting.topic_len);
Dec(mnu_len2,mn_setting.topic_len);
Move(mbuf[SUCC(mn_setting.topic_len)],mbuf[1],
(count-mn_setting.topic_len)*SizeOf(mbuf[1]));
For temp := 1 to mn_setting.topic_len do SubPos(idx2);
Dec(count,mn_setting.topic_len);
Dec(mnu_count,mn_setting.topic_len);
Dec(first,mn_setting.topic_len);
Dec(last,mn_setting.topic_len);
refresh;
end
else
refresh;
mn_environment.curr_page := page;
mn_environment.curr_pos := idx2+page-1;