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TOTIO1.PAS
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Pascal/Delphi Source File
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1991-02-11
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61KB
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2,278 lines
{ Copyright 1991 TechnoJock Software, Inc. }
{ All Rights Reserved }
{ Restricted by License }
{ Build # 1.00 }
Unit totIO1;
{$I TOTFLAGS.INC}
{
Development Notes:
}
INTERFACE
uses DOS, CRT,
totSYS, totLOOK, totFAST, totWIN, totSTR, totINPUT;
CONST
NoRules = $00;
AllowNull = $01;
SuppressZero = $02;
EraseDefault = $08;
JumpIfFull = $10;
MaxButtonWidth = 25; {alter as necessary}
HelpID = 65535;
TYPE
tCursPos = (CursLeft,CursRight,CursPrev);
tStatus = (HiStatus, Norm, Off);
tAction = (None,NextField,PrevField,Finished,Escaped,
Refresh,Signal,Enter,Help,Stop1,Stop2,Stop3,Stop4,
Stop5,Stop6,Stop7,Stop8,Stop9);
tColor = array[1..4] of byte;
StringBut = string[MaxButtonWidth];
LeaveFieldfunc = function(var FieldID:word): tAction;
EnterFieldfunc = function(var NewID:word; OldID:word): tAction;
CharFunc = function(var K:word;var X,Y:byte; var FieldID:word): tAction;
HelpProc = procedure(ID:word);
tSignal = record
ID: word;
MsgType: word;
case word of {variant record}
0: (MsgPtr: pointer);
1: (MsgLong: longint);
2: (MsgWord: word);
3: (MsgInt: integer);
4: (MsgByte: byte);
5: (MsgChar: char);
end;
InputOBJ = object {defines the default attributes for the fields}
vLabel: tColor;
vButton: tColor;
vGroup: tColor;
vList: tColor;
vField: tColor; {Off, On, Mask, Inactive}
vMessage: byte;
vInputPad: char;
vCase: tCase;
vForceCase: boolean; {adjust case of characters during input}
vInputJust: tJust;
vCursorLoc: tCursPos;
vInsert: boolean; {is field initially in insert mode}
vRules: byte; {erasedefault, jumpiffull..... etc.}
{methods...}
constructor Init;
procedure SetDefaults;
procedure SetColLabel(Off,OffHot,On,OnHot: byte);
procedure SetColButton(Off,OffHot,On,OnHot: byte);
procedure SetColGroup(Off,OffHot,On,OnHot: byte);
procedure SetColList(Off,OffHot,On,OnHot: byte);
procedure SetColField(Off,On,Mask,Inactive: byte);
procedure SetColMsg(Col:byte);
procedure SetIns(InsOn:boolean);
procedure SetRules(Rules:byte);
procedure SetPadChar(Pad:char);
procedure SetJust(Just:tJust);
procedure SetCursor(Curs: tCursPos);
procedure SetCase(Cas:tCase);
procedure SetForceCase(On:boolean);
function LabelCol(Element:byte): byte;
function ButtonCol(Element:byte): byte;
function GroupCol(Element:byte): byte;
function ListCol(Element:byte): byte;
function FieldCol(Element:byte): byte;
function MessageCol: byte;
function InputPad: char;
function InputIns:boolean;
function InputRules: byte;
function InputPadChar: char;
function InputJust: tJust;
function InputCursorLoc: tCursPos;
function InputCase: tCase;
function InputForceCase: boolean;
destructor Done;
end; {InputOBJ}
pItemIOOBJ = ^ItemIOOBJ;
ItemIOOBJ = object
vBoundary: tCoords;
vHotKey: word;
vID: word;
vActive: boolean;
{methods ...}
constructor Init;
procedure SetActiveStatus(Selectable:boolean);
function Active:boolean;
function GetHotKey: word;
procedure SetHotkey(HK:word);
function GetID: word;
procedure SetID(ID:word);
function Ontarget(X,Y: byte): boolean; VIRTUAL;
function Visible: boolean; VIRTUAL;
procedure RaiseSignal(var TheSig:tSignal); VIRTUAL;
procedure HandleSignal(var BaseSig:tSignal; var NewSig:tSignal); VIRTUAL;
procedure ShutdownSignal(var BaseSig:tSignal); VIRTUAL;
function IsHotkey(HK:word):boolean; VIRTUAL;
procedure WriteLabel(Status:tStatus); VIRTUAL;
procedure Display(Status:tStatus); VIRTUAL;
function Select(K:word; X,Y:byte):tAction; VIRTUAL;
function ProcessKey(InKey:word;X,Y:byte):tAction; VIRTUAL;
function Suspend:boolean; VIRTUAL;
destructor Done; VIRTUAL;
end; {ItemIOOBJ}
pHotkeyIOOBJ = ^HotkeyIOOBJ;
HotkeyIOOBJ = object (ItemIOOBJ)
vActionCode: tAction;
{methods ...}
constructor Init(HK:Word;Act:tAction);
function IsHotkey(HK:word):boolean; VIRTUAL;
function Select(K:word; X,Y:byte):tAction; VIRTUAL;
destructor Done; VIRTUAL;
end; {HotkeyIOOBJ}
pControlKeysIOOBJ = ^ControlKeysIOOBJ;
ControlKeysIOOBJ = object (ItemIOOBJ)
vFinKey: word;
vNexkey: word;
vPreKey: word;
vEscKey: word;
{methods ...}
constructor Init;
procedure SetKeys(Next,Prev,Fin,Esc:Word);
function IsHotkey(HK:word):boolean; VIRTUAL;
function Select(K:word; X,Y:byte):tAction; VIRTUAL;
destructor Done; VIRTUAL;
end; {ControlKeysIOOBJ}
pVisibleIOOBJ = ^VisibleIOOBJ;
VisibleIOOBJ = object (ItemIOOBJ)
vLblPtr: pointer;
vMsgPtr: pointer;
vMsgX: byte;
vMsgY: byte;
{methods ...}
constructor Init;
procedure SetLabel(Lbl:string);
procedure SetMessage(X,Y:byte; Msg:string);
procedure WriteMessage;
function Ontarget(X,Y: byte): boolean; VIRTUAL;
function Visible: boolean; VIRTUAL;
procedure WriteLabel(Status:tStatus); VIRTUAL;
function Suspend:boolean; VIRTUAL;
destructor Done; VIRTUAL;
end; {VisibleIOOBJ}
pStripIOOBJ = ^StripIOOBJ;
StripIOOBJ = object(VisibleIOOBJ)
vTitle: StringBut;
vActionCode: tAction;
{methods ...}
constructor Init(X1,Y1:byte;Tit:string;Act:tAction);
function Ontarget(X,Y: byte): boolean; VIRTUAL;
function IsHotkey(HK:word):boolean; VIRTUAL;
procedure Display(Status:tStatus); VIRTUAL;
function Select(K:word; X,Y:byte):tAction; VIRTUAL;
function ProcessKey(InKey:word;X,Y:byte):tAction; VIRTUAL;
destructor Done; VIRTUAL;
end; {StripIOOBJ}
pStrip3dIOOBJ = ^Strip3dIOOBJ;
Strip3dIOOBJ = object(StripIOOBJ)
{methods ...}
constructor Init(X1,Y1:byte;Tit:string;Act:tAction);
procedure Display(Status:tStatus); VIRTUAL;
destructor Done; VIRTUAL;
end; {Strip3dIOOBJ}
pButtonIOOBJ = ^ButtonIOOBJ;
ButtonIOOBJ = object(StripIOOBJ)
{methods ...}
constructor Init(X1,Y1:byte;Tit:string;Act:tAction);
procedure Display(Status:tStatus); VIRTUAL;
destructor Done; VIRTUAL;
end; {ButtonIOOBJ}
pMultiLineIOOBJ = ^MultiLineIOOBJ;
MultiLineIOOBJ = object (VisibleIOOBJ)
vBorder: tCoords;
vTitle: StrVisible;
vRows: byte;
{methods ...}
constructor Init(X1,Y1,width,depth:byte;Title:string);
procedure SetBoxOn(On:boolean);
procedure Display(Status:tStatus); VIRTUAL;
procedure Activate; VIRTUAL;
destructor Done; VIRTUAL;
end; {MultiLineIOOBJ}
GroupItemPtr = ^GroupItem;
GroupItem = record
NextNode: GroupItemPtr;
PrevNode: GroupItemPtr;
StrPtr: Pointer;
HK: word;
Selected: boolean;
end;
pGroupIOOBJ = ^GroupIOOBJ;
GroupIOOBJ = object (MultiLineIOOBJ)
vItemStack: GroupItemPtr;
vTotalItems: byte;
vActiveItem: byte;
vOnStr: string[3];
vOffStr: string[3];
vSubHotkeysActive : boolean;
{methods ...}
constructor Init(X1,Y1,width,depth:byte;Title:string);
procedure SetSubHotkeysActive(On:boolean);
function EndNode: GroupItemPtr;
function NodePtr(Item:byte): GroupItemPtr;
procedure AddItem(Str:string;HK:word;Selected:boolean);
function HotKeyItem(HK:word): integer;
function HitItem(X,Y:byte):byte;
procedure WriteItem(Item:byte; IsActive:boolean);
function Select(K:word; X,Y:byte):tAction; VIRTUAL;
function IsHotkey(HK:word):boolean; VIRTUAL;
procedure Display(Status:tStatus); VIRTUAL;
destructor Done; VIRTUAL;
end; {GroupIOOBJ}
pCheckIOOBJ = ^CheckIOOBJ;
CheckIOOBJ = object (GroupIOOBJ)
{methods ...}
constructor Init(X1,Y1,width,depth:byte;Title:string);
procedure SetValue(Item:byte;Selected:boolean);
function GetValue(Item:byte):boolean;
function ProcessKey(InKey:word;X,Y:byte):tAction; VIRTUAL;
function Select(K:word; X,Y:byte):tAction; VIRTUAL;
destructor Done; VIRTUAL;
end; {CheckIOOBJ}
pRadioIOOBJ = ^RadioIOOBJ;
RadioIOOBJ = object (GroupIOOBJ)
{methods ...}
constructor Init(X1,Y1,width,depth:byte;Title:string);
procedure SetValue(Item:byte);
function GetValue: byte;
function ProcessKey(InKey:word;X,Y:byte):tAction; VIRTUAL;
function Select(K:word; X,Y:byte):tAction; VIRTUAL;
destructor Done; VIRTUAL;
end; {RadioIOOBJ}
pItemNode = ^ItemNode;
ItemNode = record
Item: pItemIOOBJ;
NextNode: pItemNode;
PrevNode: pItemNode;
end; {ItemList}
pFormOBJ = ^FormOBJ;
FormOBJ = object
vItemStack: pItemNode;
vActiveItem: pItemNode;
vCharHook: CharFunc;
vLeaveHook: LeaveFieldFunc;
vEnterHook: EnterFieldFunc;
vHelpHook: HelpProc;
{methods ...}
constructor Init;
procedure AddItem(var NewItem: ItemIOOBJ);
procedure SetCharHook(Func:CharFunc);
procedure SetLeaveHook(Func:LeaveFieldFunc);
procedure SetEnterHook(Func:EnterFieldFunc);
procedure SetHelpHook(Proc:HelpProc);
function EndNode: pItemNode;
procedure SetActiveItem(ID:word);
function HotKeyItemPtr(HotKey:word):pItemNode;
function IDItemPtr(ID:word):pItemNode;
function HotSpotItemPtr(X,Y:byte):pItemNode;
function Go: tAction;
procedure BroadcastSignal(TheSig:tSignal; SignalSource: pItemNode);
procedure DisplayItems;
procedure AdjustKey(var Key:word;var X,Y: byte); VIRTUAL;
procedure HelpTask(ID:word); VIRTUAL;
function CharTask(var K:word;var X,Y:byte;
var FieldID:word):tAction; VIRTUAL;
function EnterTask(var NewID:word; OldID:word): tAction; VIRTUAL;
function LeaveTask(var FieldID:word): tAction; VIRTUAL;
destructor Done; VIRTUAL;
end; {FormOBJ}
WinFormPtr = ^WinFormOBJ;
pWinFormOBJ = WinFormPtr;
WinFormOBJ = object (FormOBJ)
vWinPtr: MoveWinPtr;
{methods ...}
constructor Init;
function Win: MoveWinPtr;
procedure Draw;
procedure AdjustKey(var Key:word;var X,Y: byte); VIRTUAL;
destructor Done; VIRTUAL;
end; {WinFormOBJ}
procedure IO1Init;
function NoCharHook(var K:word;var X,Y:byte;var FieldID:word): tAction;
function NoEnterHook(var FieldID:word; OtherID:word): tAction;
function NoLeaveHook(var ID:word): tAction;
procedure NoHelpHook(ID:word);
procedure AssignColors(Main,Inactive:tColor; Status:tStatus; var High,Nor:byte);
var
IOTOT: ^InputOBJ;
IMPLEMENTATION
Var
FormHelpCalled,
EscapingForm: boolean;
{|||||||||||||||||||||||||||||||||||||||||||||}
{ }
{ M i s c. P r o c s & F u n c s }
{ }
{|||||||||||||||||||||||||||||||||||||||||||||}
{$F+}
function NoCharHook(var K:word;var X,Y:byte;var FieldID:word): tAction;
{}
begin
NoCharHook := None;
end; {NoCharHook}
function NoEnterHook(var FieldID:word; OtherID:word): tAction;
{}
begin
NoEnterHook := none;
end; {NoEnterHook}
function NoLeaveHook(var ID:word): tAction;
{}
begin
NoLeaveHook := none;
end; {NoLeaveHook}
procedure NoHelpHook(ID:word);
{}
begin
Ding;
end; {NoHelpHook}
{$IFNDEF OVERLAY}
{$F-}
{$ENDIF}
procedure AssignColors(Main,Inactive:tColor; Status:tStatus; var High,Nor:byte);
{}
begin
Case Status of
HiStatus: begin
High := Main[4];
Nor := Main[3];
end;
Norm: begin
High := Main[2];
Nor := Main[1];
end;
Off: begin
High := Inactive[4];
Nor := Inactive[4];
end;
end; {case}
end; {AssignColors}
{|||||||||||||||||||||||||||||||||||||||||}
{ }
{ I n p u t O B J M E T H O D S }
{ }
{|||||||||||||||||||||||||||||||||||||||||}
constructor InputOBJ.Init;
{}
begin
SetDefaults;
end; {InputlOBJ.Init}
procedure InputOBJ.SetDefaults;
{}
begin
if Monitor^.ColorOn then {color System}
begin
SetColLabel(78,76,79,76);
SetColButton(32,46,47,46);
SetColGroup(48,62,63,62);
SetColList(48,62,31,30);
SetColField(48,31,23,71);
end
else
begin
SetColLabel(7,15,15,15);
SetColButton(7,15,15,15);
SetColGroup(7,15,15,15);
SetColList(7,15,15,15);
SetColField(7,15,15,15);
end;
SetColMsg(0);
vInputPad := chr(250);
vCase := Leave;
vForceCase := false;
vInputJust := JustLeft;
vCursorLoc := CursPrev;
vInsert := false;
vRules := AllowNull;
end; {InputOBJ.SetDefaults}
procedure InputOBJ.SetColLabel(Off,OffHot,On,OnHot: byte);
{}
begin
vLabel[1] := Off;
vLabel[2] := OffHot;
vLabel[3] := On;
vLabel[4] := OnHot;
end; {InputOBJ.SetColLabel}
procedure InputOBJ.SetColButton(Off,OffHot,On,OnHot: byte);
{}
begin
vButton[1] := Off;
vButton[2] := OffHot;
vButton[3] := On;
vButton[4] := OnHot;
end; {InputOBJ.SetColButton}
procedure InputOBJ.SetColGroup(Off,OffHot,On,OnHot: byte);
{}
begin
vGroup[1] := Off;
vGroup[2] := OffHot;
vGroup[3] := On;
vGroup[4] := OnHot;
end; {InputOBJ.SetColGroup}
procedure InputOBJ.SetColList(Off,OffHot,On,OnHot: byte);
{}
begin
vList[1] := Off;
vList[2] := OffHot;
vList[3] := On;
vList[4] := OnHot;
end; {InputOBJ.SetColList}
procedure InputOBJ.SetColField(Off,On,Mask,Inactive: byte);
{}
begin
vField[1] := Off;
vField[2] := On;
vField[3] := Mask;
vField[4] := InActive;
end; {InputOBJ.SetColField}
procedure InputOBJ.SetColMsg(Col:byte);
{}
begin
vMessage := Col;
end; {InputOBJ.SetColMsg}
function InputOBJ.LabelCol(Element:byte): byte;
{}
begin
LabelCol := vLabel[Element];
end; {InputOBJ.LabelCol}
function InputOBJ.ButtonCol(Element:byte): byte;
{}
begin
ButtonCol := vButton[Element];
end; {InputOBJ.ButtonCol}
function InputOBJ.GroupCol(Element:byte): byte;
{}
begin
GroupCol := vGroup[Element];
end; {InputOBJ.GroupCol}
function InputOBJ.ListCol(Element:byte): byte;
{}
begin
ListCol := vList[Element];
end; {InputOBJ.ListCol}
function InputOBJ.FieldCol(Element:byte): byte;
{}
begin
FieldCol := vField[Element];
end; {InputOBJ.FieldCol}
function InputOBJ.MessageCol: byte;
{}
begin
MessageCol := vMessage;
end; {InputOBJ.MessageCol}
procedure InputOBJ.SetIns(InsOn:boolean);
{}
begin
vInsert := InsOn;
end; {InputOBJ.SetIns}
procedure InputOBJ.SetRules(Rules:byte);
{}
begin
vRules := Rules;
end; {SetRules}
procedure InputOBJ.SetPadChar(Pad:char);
{}
begin
vInputPad := Pad;
end; {InputOBJ.SetPadChar}
procedure InputOBJ.SetCursor(Curs:tCursPos);
{}
begin
vCursorLoc := Curs;
end; {InputOBJ.SetCurs}
procedure InputOBJ.SetJust(Just:tJust);
{}
begin
vInputJust := Just;
end; {InputOBJ.SetJust}
procedure InputOBJ.SetCase(Cas:tCase);
{}
begin
vCase := Cas;
end; {InputOBJ.SetCase}
procedure InputOBJ.SetForceCase(On:boolean);
{}
begin
vForceCase := On;
end; {InputOBJ.SetForceCase}
function InputOBJ.InputPad: char;
{}
begin
InputPad := vInputPad;
end; {of func InputOBJ.InputPad}
function InputOBJ.InputIns:boolean;
{}
begin
InputIns := vInsert;
end; {InputOBJ.InputIns}
function InputOBJ.InputRules:byte;
{}
begin
InputRules := vRules;
end; {InputOBJ.InputRules}
function InputOBJ.InputPadChar:char;
{}
begin
InputPadChar := vInputPad;
end; {InputOBJ.InputPadChar}
function InputOBJ.InputJust:tJust;
{}
begin
InputJust := vInputJust;
end; {InputOBJ.InputJust}
function InputOBJ.InputCursorLoc:tCursPos;
{}
begin
InputCursorLoc := vCursorLoc;
end; {InputOBJ.InputCursorLoc}
function InputOBJ.InputCase:tCase;
{}
begin
InputCase := vCase;
end; {InputOBJ.InputCase}
function InputOBJ.InputForceCase:boolean;
{}
begin
InputForceCase := vForceCase;
end; {InputOBJ.InputForceCase}
destructor InputOBJ.Done;
begin end;
{||||||||||||||||||||||||||||||||||||||}
{ }
{ I t e m O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||}
constructor ItemIOOBJ.Init;
{}
begin
vActive := false;
vHotKey := 0;
vID := 0;
vBoundary.X1 := 0;
vBoundary.Y1 := 0;
vBoundary.X2 := 0;
vBoundary.Y2 := 0;
end; {cons ItemIOOBJ.Init}
procedure ItemIOOBJ.SetActiveStatus(Selectable:boolean);
{}
begin
vActive := Selectable;
end; {ItemIOOBJ.SetActiveStatus}
procedure ItemIOOBJ.SetHotkey(HK:word);
{}
begin
vHotKey := HK;
end; {ItemIOOBJ.SetHotkey}
function ItemIOOBJ.GetHotKey:word;
{}
begin
GetHotKey := vHotkey;
end; {ItemIOOBJ.GetHotKey}
procedure ItemIOOBJ.SetID(ID:word);
{}
begin
vID := ID;
end; {ItemIOOBJ.SetID}
function ItemIOOBJ.GetID:word;
{}
begin
GetID := vID;
end; {ItemIOOBJ.GetID}
function ItemIOOBJ.Visible: boolean;
{}
begin
Visible := false;
end; {ItemIOOBJ.Visible}
function ItemIOOBJ.Active:boolean;
{}
begin
Active := vActive;
end; {ItemIOOBJ.Active}
function ItemIOOBJ.IsHotKey(HK:word):boolean;
{}
begin
IsHotKey := (HK = vHotKey);
end; {ItemIOOBJ.IsHotKey}
function ItemIOOBJ.OnTarget(X,Y: byte):boolean;
{}
begin
Ontarget := (X >= vBoundary.X1)
and (X <= vBoundary.X2)
and (Y >= vBoundary.Y1)
and (Y <= vBoundary.Y2)
and vActive;
end; {ItemIOOBJ.HotKey}
function ItemIOOBJ.Select(K:word; X,Y:byte):tAction;
{}
begin
Select := None;
end;
function ItemIOOBJ.ProcessKey(InKey:word;X,Y:byte):tAction;
{}
begin
ProcessKey := None;
end;
procedure ItemIOOBJ.WriteLabel(Status:tStatus);
{}
begin end;
procedure ItemIOOBJ.Display(Status:tStatus);
{}
begin end;
function ItemIOOBJ.Suspend;
{}
begin
Display(Norm);
Suspend := true;
end; {ItemIOOBJ.Suspend}
procedure ItemIOOBJ.RaiseSignal(var TheSig:tSignal);
{abstract}
begin end;
procedure ItemIOOBJ.HandleSignal(var BaseSig:tSignal; var NewSig:tSignal);
{abstract}
begin end;
procedure ItemIOOBJ.ShutDownSignal(var BaseSig:tSignal);
{abstract}
begin end;
destructor ItemIOOBJ.Done;
{}
begin end;
{||||||||||||||||||||||||||||||||||||||||||}
{ }
{ H o t k e y O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||}
constructor HotkeyIOOBJ.Init(HK:word; Act:tAction);
{}
begin
ItemIOOBJ.Init;
vBoundary.X1 := -128;
vBoundary.X2 := -128;
vBoundary.Y1 := -128;
vBoundary.Y2 := -128;
vActionCode := Act;
vHotKey := HK;
end; {cons HotkeyIOOBJ.Init}
function HotkeyIOOBJ.Select(K:word; X,Y:byte):tAction;
{}
begin
Select := vActionCode;
end; {HotkeyIOOBJ.Select}
function HotkeyIOOBJ.IsHotKey(HK:word):boolean;
{}
begin
if HK = vHotKey then
begin
EscapingForm := (vActionCode = Escaped);
FormHelpCalled := (vActionCode = Help);
IsHotkey := true
end
else
IsHotKey := false;
end; {HotkeyIOOBJ.IsHotKey}
destructor HotkeyIOOBJ.Done;
{}
begin
ItemIOOBJ.Done;
end; {dest HotkeyIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||||||||||||||||||}
{ }
{ C o n t r o l K e y s I O O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||||||||||||||||}
constructor ControlKeysIOOBJ.Init;
{}
begin
ItemIOOBJ.Init;
vFinKey:= 324;
vNexkey:= 9;
vPreKey:= 271;
vEscKey:= 27;
end; {ControlKeysIOOBJ.Init}
procedure ControlKeysIOOBJ.SetKeys(Next,Prev,Fin,Esc:Word);
{}
begin
vFinKey:= Fin;
vNexkey:= Next;
vPreKey:= Prev;
vEscKey:= Esc;
end; {ControlKeysIOOBJ.SetKeys}
function ControlKeysIOOBJ.IsHotkey(HK:word):boolean;
{}
begin
if (Hk=vEscKey) then
EscapingForm := true;
IsHotKey := ( (HK=vFinKey)
or (HK=vNexKey)
or (HK=vPreKey)
or (Hk=vEscKey)
);
end; {ControlKeysIOOBJ.IsHotkey}
function ControlKeysIOOBJ.Select(K:word; X,Y:byte):tAction;
{}
begin
if AlphabetTOT^.IsLower(K) then
K := ord(AlphabetTOT^.GetUpcase(chr(K)));
if (K = vFinKey) then
Select := Finished
else if (K = vNexkey) then
Select := NextField
else if (K = vPreKey) then
Select := PrevField
else if (K = vEscKey) then
Select := Escaped
else
Select := None;
end; {ControlKeysIOOBJ.Select}
destructor ControlKeysIOOBJ.Done;
{}
begin
ItemIOOBJ.Done;
end; {ControlKeysIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||||||||||||||||}
{ }
{ V i s i b l e F i e l d O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||||||||||||||}
constructor VisibleIOOBJ.Init;
{}
begin
ItemIOOBJ.Init;
vActive := true;
vLblPtr := nil;
vMsgPtr := nil;
end; {VisibleIOOBJ.Init}
function VisibleIOOBJ.Visible: boolean;
{}
begin
Visible := true;
end; {VisibleIOOBJ.Visible}
procedure VisibleIOOBJ.SetLabel(Lbl:string);
{}
var L : word;
begin
L := succ(length(Lbl));
if MaxAvail >= L then
begin
getmem(vLblPtr,L);
move(Lbl[0],vLblPtr^,L);
end;
end; {VisibleIOOBJ.SetLabel}
function VisibleIOOBJ.OnTarget(X,Y: byte):boolean;
{}
var LabelLen: byte;
begin
if vLblPtr = nil then
LabelLen := 0
else
begin
move(vLblPtr^,LabelLen,1);
if LabelLen > 1 then
inc(LabelLen);
end;
OnTarget := (X >= vBoundary.X1 - LabelLen)
and (X <= vBoundary.X2)
and (Y >= vBoundary.Y1)
and (Y <= vBoundary.Y2)
and vActive;
end; {VisibleIOOBJ.OnTarget}
procedure VisibleIOOBJ.SetMessage(X,Y:byte; Msg:string);
{}
var L : word;
begin
L := succ(length(Msg));
if MaxAvail >= L then
begin
getmem(vMsgPtr,L);
move(Msg[0],vMsgPtr^,L);
vMsgX := X;
vMsgY := Y;
end;
end; {VisibleIOOBJ.SetMessage}
procedure VisibleIOOBJ.WriteLabel(Status:tStatus);
{}
var
Temp: string;
Norm,Hi,L: byte;
begin
if vLblPtr <> nil then
begin
move(vLblPtr^,L,1);
if L > 0 then
begin
move(vLblPtr^,Temp,succ(L));
AssignColors(IOTOT^.vLabel,IOTOT^.vField,Status,Hi,Norm);
if (Hi = 0) or (Norm = 0) then
Screen.WritePlain(pred(vBoundary.X1) - length(Temp),vBoundary.Y1,Temp)
else
Screen.WriteHi(pred(vBoundary.X1)-length(strip('A',Screen.Himarker,Temp)),vBoundary.Y1,Hi,Norm,Temp);
end;
end;
end; {VisibleIOOBJ.WriteLabel}
procedure VisibleIOOBJ.WriteMessage;
{}
var
Temp: string;
Col,L: byte;
begin
if vMsgPtr <> nil then
begin
move(vMsgPtr^,L,1);
if L > 0 then
begin
move(vMsgPtr^,Temp,succ(L));
Col := IOTOT^.MessageCol;
if Col = 0 then
Screen.WritePlain(vMsgX,vMsgY,Temp)
else
Screen.WriteAt(vMsgX,vMsgY,Col,Temp);
end;
end;
end; {VisibleIOOBJ.WriteMessage}
function VisibleIOOBJ.Suspend:boolean;
{}
var Col,L: byte;
begin
Display(Norm);
WriteLabel(Norm);
if vMsgPtr <> Nil then {clear the message}
begin
move(vMsgPtr^,L,1);
if L > 0 then
begin
Col := IOTOT^.MessageCol;
if Col = 0 then
Screen.WritePlain(vMsgX,vMsgY,replicate(L,' '))
else
Screen.WriteAt(vMsgX,vMsgY,Col,replicate(L,' '));
end;
end;
Suspend := true;
end; {VisibleIOOBJ.Suspend}
destructor VisibleIOOBJ.Done;
{}
var Len : byte;
begin
ItemIOOBJ.Done;
if vLblPtr <> Nil then
begin
Move(vLblPtr^,Len,1);
FreeMem(vLblPtr,Len);
end;
if vMsgPtr <> Nil then
begin
Move(vMsgPtr^,Len,1);
FreeMem(vMsgPtr,Len);
end;
end; {desc VisibleIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||}
{ }
{ S t r i p O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||}
constructor StripIOOBJ.Init(X1,Y1:byte;Tit:string;Act:tAction);
{}
begin
VisibleIOOBJ.Init;
vBoundary.X1 := X1;
vBoundary.Y1 := Y1;
vBoundary.X2 := X1 + pred(length(Strip('A','~',Tit)));
vBoundary.Y2 := Y1;
vTitle := Tit;
vActionCode := Act;
end; {StripIOOBJ.Init}
function StripIOOBJ.IsHotKey(HK:word):boolean;
{}
begin
IsHotKey := (HK = vHotKey);
if HK = vHotKey then
begin
EscapingForm := (vActionCode = Escaped);
FormHelpCalled := (vActionCode = Help);
end;
end; {StripIOOBJ.IsHotKey}
function StripIOOBJ.OnTarget(X,Y: byte):boolean;
{}
Var BullsEye: boolean;
begin
BullsEye := VisibleIOOBJ.OnTarget(X,Y);
if BullsEye then
begin
EscapingForm := (vActionCode = Escaped);
FormHelpCalled := (vActionCode = Help);
end;
OnTarget := BullsEye;
end; {ItemIOOBJ.HotKey}
procedure StripIOOBJ.Display(Status:tStatus);
{}
var
Nor,High: Byte;
begin
AssignColors(IOTOT^.vButton,IOTOT^.vField,Status,High,Nor);
with vBoundary do
begin
Screen.WriteHi(X1,Y1,High,Nor,vTitle);
if Status = HiStatus then
GotoXY(X1 + (X2-X1) div 2,Y1 + (Y2 - Y1) div 2);
end;
end; {StripIOOBJ.Display}
function StripIOOBJ.Select(K:word; X,Y:byte):tAction;
{}
begin
Display(HiStatus);
WriteMessage;
if AlphabetTOT^.IsLower(K) then
K := ord(AlphabetTOT^.GetUpcase(chr(K)));
if ((K <> 0) and (K = vHotKey)) or (K = 513) then
Select := vActionCode
else
Select := none;
end; {StripIOOBJ.Select}
function StripIOOBJ.ProcessKey(InKey:word;X,Y:byte):tAction;
{}
begin
if (InKey = 13) or (InKey = 513) then
ProcessKey := vActionCode
else
Processkey := None;
end; {StripIOOBJ.ProcessKey}
destructor StripIOOBJ.Done;
{}
begin
VisibleIOOBJ.Done;
end; {StripIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||||||}
{ }
{ S t r i p 3 d O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||||}
constructor Strip3dIOOBJ.Init(X1,Y1:byte;Tit:string;Act:tAction);
{}
begin
StripIOOBJ.Init(X1,Y1,Tit,Act);
end; {Strip3dIOOBJ.Init}
procedure Strip3dIOOBJ.Display(Status:tStatus);
{}
var High,Nor,A: byte;
begin
StripIOOBJ.Display(Status);
A := Screen.ReadAttr(succ(vBoundary.X1),succ(vBoundary.Y1));
if Monitor^.ColorOn then {color System}
A := Cattr(black,battr(A))
else
A := Cattr(darkgray,battr(A));
Screen.WriteAT(succ(vBoundary.X1),succ(vBoundary.Y1),A,
replicate(succ(vBoundary.X2-vBoundary.X1),char(223)));
Screen.WriteAT(succ(vBoundary.X2),vBoundary.Y1,A,char(220));
end; {Strip3dIOOBJ.Display}
destructor Strip3dIOOBJ.Done;
{}
begin
StripIOOBJ.Done;
end; {desc Strip3dIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||||}
{ }
{ B u t t o n O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||}
constructor ButtonIOOBJ.Init(X1,Y1:byte;Tit:string;Act:tAction);
{}
var L : byte;
begin
StripIOOBJ.Init(X1,Y1,Tit,Act);
L := length(Strip('A','~',Tit));
vBoundary.X2 := succ(X1 + L);
vBoundary.Y2 := Y1 + 2;
end; {ButtonIOOBJ.Init}
procedure ButtonIOOBJ.Display(Status:tStatus);
{}
var
High,Nor,Style: Byte;
begin
AssignColors(IOTOT^.vButton,IOTOT^.vField,Status,High,Nor);
if Status = HiStatus then
Style := 5
else
Style := 1;
with vBoundary do
begin
Screen.FillBox(X1,Y1,X2,Y2,Nor,Style);
Screen.WriteHi(succ(X1),succ(Y1),High,Nor,vTitle);
if Status = HiStatus then
GotoXY(X1 + (X2-X1) div 2,Y1 + (Y2 - Y1) div 2);
end;
end; {ButtonIOOBJ.Display}
destructor ButtonIOOBJ.Done;
{}
begin
StripIOOBJ.Done;
end; {desc ButtonIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||||||||||}
{ }
{ M u l t i L i n e O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||||||||}
constructor MultiLineIOOBJ.Init(X1,Y1,width,depth:byte;Title:string);
{}
begin
VisibleIOOBJ.Init;
vTitle:= Title;
vBoundary.X1 := X1;
vBoundary.Y1 := Y1;
vBoundary.X2 := pred(X1+width);
vBoundary.Y2 := pred(Y1+depth);
SetBoxOn(False);
end; {MultiLineIOOBJ.Init}
procedure MultiLineIOOBJ.SetBoxOn(On:boolean);
{}
begin
if On then
begin
vBorder.X1 := succ(vBoundary.X1);
vBorder.X2 := pred(vBoundary.X2);
if vTitle = '' then
vBorder.Y1 := succ(vBoundary.Y1)
else
vBorder.Y1 := (vBoundary.Y1+2);
vBorder.Y2 := pred(vBoundary.Y2);
end
else
begin
vBorder.X1 := vBoundary.X1;
vBorder.X2 := vBoundary.X2;
if vTitle = '' then
vBorder.Y1 := vBoundary.Y1
else
vBorder.Y1 := succ(vBoundary.Y1);
vBorder.Y2 := vBoundary.Y2;
end;
vRows := vBorder.Y2 - pred(vBorder.Y1);
end; {MultiLineIOOBJ.SetBoxOn}
procedure MultiLineIOOBJ.Display(Status:tStatus);
{}
var
High,Nor: byte;
Style: byte;
I : integer;
begin
AssignColors(IOTOT^.vLabel,IOTOT^.vField,Status,High,Nor);
if Status = HiStatus then
Style := 2
else
Style := 1;
with Screen do
begin
if vTitle <> '' then
WriteHi(vBoundary.X1,vBoundary.Y1,High,Nor,vTitle);
if vBoundary.X1 < vBorder.X1 then {box}
with vBorder do
Box(pred(X1),pred(Y1),succ(X2),succ(Y2),Nor,Style);
end;
end; {MultiLineIOOBJ.Display}
procedure MultiLineIOOBJ.Activate;
{}
var
Action: tAction;
begin
repeat
Action := Select(0,0,0);
Display(HiStatus);
WriteLabel(HiStatus);
with Key do
repeat
GetInput;
if LastKey = 27 then
Action := Escaped
else
Action := ProcessKey(LastKey,LastX,LastY);
until Action in [Finished,Escaped,Enter,NextField,PrevField,Stop1..Stop9];
until Suspend;
end; {MultiLineIOOBJ.Activate}
destructor MultiLineIOOBJ.Done;
{}
begin
VisibleIOOBJ.Done;
end; {MultiLineIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||}
{ }
{ G r o u p O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||}
constructor GroupIOOBJ.Init(X1,Y1,width,depth:byte;Title:string);
{}
begin
MultiLineIOOBJ.Init(X1,Y1,width,depth,Title);
vItemStack := nil;
vActiveItem := 0;
vTotalItems := 0;
vSubHotkeysActive := false;
end; {GroupIOOBJ.Init}
procedure GroupIOOBJ.SetSubHotkeysActive(On:boolean);
{}
begin
vSubHotkeysActive := On;
end; {GroupIOOBJ.SetSubHotkeysActive}
procedure GroupIOOBJ.WriteItem(Item:byte; IsActive:boolean);
{}
var
Temp: GroupItemPtr;
High,Nor:byte;
Status: tStatus;
Len : byte;
Str : string;
begin
if IsActive then
Status := HiStatus
else
Status := Norm;
AssignColors(IOTOT^.vGroup,IOTOT^.vField,Status,High,Nor);
Temp := NodePtr(Item);
if (Temp = nil) or (Temp^.StrPtr = nil) then
exit
else
begin
move(Temp^.StrPtr^,Len,1);
if Len > 0 then
move(Temp^.StrPtr^,Str,succ(Len))
else
Str := '';
if Temp^.Selected then
Str := vOnStr+' '+Str
else
Str := vOffStr+' '+Str;
Str := Padleft(Str,vBorder.X2
- pred(vBorder.X1)
+ length(Str)
- length(strip('A',Screen.HiMarker,Str)),
' ');
Screen.WriteHi(vBorder.X1,vBorder.Y1+pred(Item),High,Nor,Str);
if IsActive then
Screen.GotoXY(succ(vBorder.X1),vBorder.Y1+pred(Item));
end;
end; {GroupIOOBJ.WriteItem}
procedure GroupIOOBJ.Display(Status:tStatus);
{}
var
BorderCol : byte;
Style: byte;
I : integer;
begin
MultiLineIOOBJ.Display(Status);
for I := 1 to vTotalItems do
WriteItem(I,((I=vActiveItem) and (Status=HiStatus)));
end; {GroupIOOBJ.Display}
function GroupIOOBJ.Select(K:word; X,Y:byte):tAction;
{}
begin
Display(HiStatus);
Select := none;
end; {StripIOOBJ.Select}
function GroupIOOBJ.HotKeyItem(HK:word): integer;
{}
var
Counter:integer;
Temp: GroupItemPtr;
Found : boolean;
begin
if vSubHotkeysActive then
begin
if AlphabetTOT^.IsLower(HK) then
HK := ord(AlphabetTOT^.GetUpcase(chr(HK)));
Found := false;
Counter := 1;
Temp := vItemStack;
while (Temp <> nil) and (Found = false) do
begin
Found := (Temp^.HK = HK);
if not Found then
begin
inc(Counter);
Temp := Temp^.NextNode;
end;
end;
if Found then
HotKeyItem := Counter
else
HotKeyItem := 0;
end
else
HotkeyItem := 0;
end; {GroupIOOBJ.HotKeyItem}
function GroupIOOBJ.IsHotkey(HK:word):boolean;
{}
var
Found : boolean;
Temp: GroupItemPtr;
begin
Found := (HK = vHotkey);
if (Found = false) then
Found := (HotKeyItem(HK) > 0);
IsHotkey := found;
end; {GroupIOOBJ.IsHotkey}
function GroupIOOBJ.EndNode: GroupItemPtr;
{returns a pointer to the last item in the list}
var
Temp : GroupItemPtr;
begin
Temp := vItemStack;
while (Temp <> nil) and (Temp^.NextNode <> nil) do
Temp := Temp^.NextNode;
EndNode := Temp;
end; {GroupIOOBJ.EndNode}
procedure GroupIOOBJ.AddItem(Str:string;HK:word;Selected:boolean);
{}
var Temp: GroupItemPtr;
begin
if MaxAvail < SizeOf(vItemStack^) + succ(Length(Str)) then
exit
else
begin
if vItemStack = Nil then
begin
getmem(vItemStack,sizeof(vItemStack^));
vActiveItem := 1;
vItemStack^.PrevNode := Nil;
Temp := vItemStack;
end
else
begin
Temp := EndNode;
getmem(Temp^.NextNode, sizeof(Temp^));
Temp^.NextNode^.PrevNode := Temp;
Temp := Temp^.NextNode;
end;
Temp^.NextNode := nil;
inc(vTotalItems);
getmem(Temp^.StrPtr,succ(length(Str)));
move(Str[0],Temp^.StrPtr^,succ(length(Str)));
Temp^.HK := HK;
Temp^.Selected := Selected;
if HK <> 0 then
vSubHotKeysActive := true;
end;
end; {GroupIOOBJ.AddItem}
function GroupIOOBJ.HitItem(X,Y:byte):byte;
{returns the item number of the item falling on line Y, else returns 0}
var
B: integer;
begin
B := Y - pred(vBorder.Y1);
if (B > vTotalItems) or (B < 0) or (X < vBorder.X1) or (X> vBorder.X2) then
HitItem := 0
else
HitItem := B;
end; {GroupIOOBJ.HitItem}
function GroupIOOBJ.NodePtr(Item:byte): GroupItemPtr;
{}
var
Temp: GroupItemPtr;
I: integer;
begin
Temp := vItemStack;
if Item > 1 then
for I := 2 to Item do
if Temp <> Nil then
Temp := Temp^.NextNode;
NodePtr := Temp;
end; {GroupIOOBJ.NodePtr}
destructor GroupIOOBJ.Done;
{}
var
Temp: GroupItemPtr;
Len: byte;
begin
MultiLineIOOBJ.Done;
Temp := EndNode;
while Temp <> Nil do
begin
if Temp^.StrPtr <> Nil then
begin
Move(Temp^.StrPtr^,Len,1);
FreeMem(Temp^.StrPtr,Len);
end;
if Temp^.PrevNode = nil then
begin
FreeMem(Temp,sizeof(temp^));
Temp := nil;
end
else
begin
Temp := Temp^.PrevNode;
FreeMem(Temp^.NextNode,sizeof(temp^));
end;
end;
end; {desc GroupIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||}
{ }
{ C h e c k O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||}
constructor CheckIOOBJ.Init(X1,Y1,width,depth:byte;Title:string);
{}
begin
GroupIOOBJ.Init(X1,Y1,width,depth,Title);
vOnstr := '[X]';
vOffStr := '[ ]';
end; {CheckIOOBJ.Init}
function CheckIOOBJ.Select(K:word; X,Y:byte):tAction;
{}
var
Temp: GroupItemPtr;
New: byte;
begin
Display(HiStatus);
WriteMessage;
New := HotKeyItem(K);
if New > 0 then
begin
if vActiveItem <> New then
WriteItem(vActiveItem,false);
vActiveItem := New;
Temp := NodePtr(vActiveItem);
vActiveItem := New;
Temp^.Selected := Not Temp^.Selected;
WriteItem(vActiveItem,true);
end;
if K = 513 then
begin
New := HitItem(X,Y);
if New > 0 then
begin
WriteItem(vActiveItem,false);
vActiveItem := New;
Temp := NodePtr(vActiveItem);
Temp^.Selected := Not Temp^.Selected;
WriteItem(vActiveItem,true);
end;
end;
Select := none;
end; {CheckIOOBJ.Select}
function CheckIOOBJ.ProcessKey(InKey:word;X,Y:byte):tAction;
{}
var
Temp: GroupItemPtr;
New : byte;
begin
New := HotKeyItem(InKey);
if New > 0 then
begin
if New <> vActiveItem then
begin
WriteItem(vActiveItem,false);
vActiveItem := New;
end;
Temp := NodePtr(vActiveItem);
Temp^.Selected := Not Temp^.Selected;
WriteItem(vActiveItem,true);
end
else
case InKey of
32: {space bar}
begin
Temp := NodePtr(vActiveItem);
Temp^.Selected := Not Temp^.Selected;
WriteItem(vActiveItem,true);
end;
513: {mouse enter}
begin
New := HitItem(X,Y);
if New > 0 then
begin
WriteItem(vActiveItem,false);
vActiveItem := New;
Temp := NodePtr(vActiveItem);
Temp^.Selected := Not Temp^.Selected;
WriteItem(vActiveItem,true);
delay(175);
end;
end;
336: {down arrow}
begin
WriteItem(vActiveItem,false);
if vActiveItem < vTotalItems then
inc(vActiveItem)
else
vActiveItem := 1;
WriteItem(vActiveItem,true);
end;
328: {up arrow}
begin
WriteItem(vActiveItem,false);
if vActiveItem > 1 then
dec(vActiveItem)
else
vActiveItem := vTotalItems;
WriteItem(vActiveItem,true);
end;
end; {case}
if InKey = 13 then
ProcessKey := NextField
else
ProcessKey := None;
end; {CheckIOOBJ.ProcessKey}
procedure CheckIOOBJ.SetValue(Item:byte;Selected:boolean);
{}
var Temp: GroupItemPtr;
begin
Temp := NodePtr(Item);
if Temp <> nil then
Temp^.Selected := Selected;
end; {CheckIOOBJ.SetValue}
function CheckIOOBJ.GetValue(Item:byte):boolean;
{}
var
Temp: GroupItemPtr;
begin
Temp := NodePtr(Item);
if Temp <> nil then
GetValue := Temp^.Selected
else
GetValue := false;
end; {CheckIOOBJ.GetValue}
destructor CheckIOOBJ.Done;
{}
begin
GroupIOOBJ.Done;
end; {dest CheckIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||}
{ }
{ R a d i o O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||}
constructor RadioIOOBJ.Init(X1,Y1,width,depth:byte;Title:string);
{}
begin
GroupIOOBJ.Init(X1,Y1,width,depth,Title);
vOnstr := '(∙)';
vOffStr := '( )';
end; {RadioIOOBJ.Init}
procedure RadioIOOBJ.SetValue(Item:byte);
{}
var I : Integer;
begin
for I := 1 to vTotalItems do
NodePtr(I)^.Selected := (I=Item);
end; {RadioIOOBJ.SetValue}
function RadioIOOBJ.ProcessKey(InKey:word;X,Y:byte):tAction;
{}
var
Temp: GroupItemPtr;
I : integer;
New: byte;
begin
New := HotKeyItem(InKey);
if New <> 0 then
begin
if New <> vActiveItem then
begin
vActiveItem := New;
Temp := NodePtr(vActiveItem);
if not Temp^.Selected then
begin
SetValue(vActiveItem);
for I := 1 to vTotalItems do
WriteItem(I,(I=vActiveItem));
end;
end;
end
else
case InKey of
32: {space bar}
begin
Temp := NodePtr(vActiveItem);
if not Temp^.Selected then
begin
SetValue(vActiveItem);
for I := 1 to vTotalItems do
WriteItem(I,(I=vActiveItem));
end;
end;
513: {mouse enter}
begin
New := HitItem(X,Y);
if New > 0 then
begin
vActiveItem := New;
Temp := NodePtr(vActiveItem);
if not Temp^.Selected then
begin
SetValue(vActiveItem);
for I := 1 to vTotalItems do
WriteItem(I,(I=vActiveItem));
end;
end;
end;
336: {down arrow}
begin
WriteItem(vActiveItem,false);
if vActiveItem < vTotalItems then
inc(vActiveItem)
else
vActiveItem := 1;
WriteItem(vActiveItem,true);
end;
328: {up arrow}
begin
WriteItem(vActiveItem,false);
if vActiveItem > 1 then
dec(vActiveItem)
else
vActiveItem := vTotalItems;
WriteItem(vActiveItem,true);
end;
end; {case}
if InKey = 13 then
ProcessKey := NextField
else
ProcessKey := None;
end; {RadioIOOBJ.ProcessKey}
function RadioIOOBJ.Select(K:word; X,Y:byte):tAction;
{}
var
Temp: GroupItemPtr;
New: byte;
I : integer;
begin
vActiveItem := GetValue;
Display(HiStatus);
WriteMessage;
I := HotKeyItem(K);
if I > 0 then
begin
vActiveItem := I;
Temp := NodePtr(vActiveItem);
if not Temp^.Selected then
begin
SetValue(vActiveItem);
for I := 1 to vTotalItems do
WriteItem(I,(I=vActiveItem));
end;
end;
if K = 513 then
begin
New := HitItem(X,Y);
if New > 0 then
begin
vActiveItem := New;
Temp := NodePtr(vActiveItem);
if not Temp^.Selected then
begin
SetValue(vActiveItem);
for I := 1 to vTotalItems do
WriteItem(I,(I=vActiveItem));
end;
end;
end;
Select := none;
end; {RadioIOOBJ.Select}
function RadioIOOBJ.GetValue: byte;
{}
var I : integer;
begin
I := 1;
While (NodePtr(I)^.Selected = false) and (I < vTotalItems) do
inc(I);
GetValue := I;
end; {RadioIOOBJ.GetValue}
destructor RadioIOOBJ.Done;
{}
begin
GroupIOOBJ.Done;
end; {dest RadioIOOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||||}
{ }
{ A c t i o n O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||}
constructor FormOBJ.Init;
{}
begin
vItemStack := nil;
vActiveItem := nil;
vCharHook := NoCharHook;
vLeaveHook := NoLeaveHook;
vEnterHook := NoEnterHook;
vHelpHook := NoHelpHook;
end; {cons FormOBJ.Init}
function FormOBJ.EndNode: pItemNode;
{returns a pointer to the last item in the last}
var
Temp : pItemNode;
begin
Temp := vItemStack;
while (Temp <> nil) and (Temp^.NextNode <> nil) do
Temp := Temp^.NextNode;
EndNode := Temp;
end; {FormOBJ.EndNode}
procedure FormOBJ.AddItem(var NewItem: ItemIOOBJ);
{}
var
Temp : pItemNode;
begin
if vItemStack = nil then
begin
GetMem(vItemStack,sizeOf(vItemStack^));
vItemStack^.Item := @NewItem;
vItemStack^.NextNode := nil;
vItemStack^.PrevNode := nil;
vActiveItem := vItemStack;
end
else
begin
Temp := EndNode;
GetMem(Temp^.NextNode,sizeof(Temp^));
Temp^.NextNode^.PrevNode := Temp;
Temp := Temp^.NextNode;
Temp^.Item := @NewItem;
Temp^.NextNode := nil;
end;
end; {FormOBJ.AddItem}
procedure FormOBJ.SetCharHook(Func:CharFunc);
{}
begin
vCharHook := Func;
end; {FormOBJ.SetCharHook}
procedure FormOBJ.SetLeaveHook(Func:LeaveFieldFunc);
{}
begin
vLeaveHook := Func;
end; {FormOBJ.SetLeaveHook}
procedure FormOBJ.SetEnterHook(Func:EnterFieldFunc);
{}
begin
vEnterHook := Func;
end; {FormOBJ.SetEnterHook}
procedure FormOBJ.SetHelpHook(Proc:HelpProc);
{}
begin
vHelpHook := Proc;
end; {FormOBJ.SetHelpHook}
procedure FormOBJ.DisplayItems;
{}
var
Temp: pItemNode;
begin
Temp := vItemStack;
while Temp <> Nil do
begin
if Temp^.Item^.Active then
begin
if Temp = vActiveItem then
begin
Temp^.Item^.Display(HiStatus);
Temp^.Item^.WriteLabel(HiStatus);
end
else
begin
Temp^.Item^.Display(Norm);
Temp^.Item^.WriteLabel(Norm);
end;
end
else
begin
Temp^.Item^.Display(Off);
Temp^.Item^.WriteLabel(Off);
end;
Temp := Temp^.NextNode;
end;
end; {FormOBJ.DisplayItems}
function FormOBJ.IDItemPtr(ID:word):pItemNode;
{returns a pointer to the item which has the specified ID --
if no item is found the function returns nil}
var
Temp: pItemNode;
proceed: boolean;
begin
Temp := vItemStack;
Proceed := true;
while (Temp <> Nil) and Proceed do
begin
if Temp^.Item^.GetID = ID then
Proceed := false
else
Temp := Temp^.NextNode;
end;
IDItemPtr := Temp;
end; {FormOBJ.IDItemPtr}
procedure FormOBJ.SetActiveItem(ID:word);
{}
begin
vActiveItem := IDItemPtr(ID);
if vActiveItem = nil then
vActiveItem := vItemStack;
end; {FormOBJ.SetActiveItem}
function FormOBJ.HotkeyItemPtr(Hotkey:word):pItemNode;
{returns a pointer to the item which can be selected with the hotkey --
if no item is found the function returns nil}
var
Temp: pItemNode;
proceed: boolean;
begin
Temp := vItemStack;
Proceed := true;
if AlphabetTOT^.IsLower(HotKey) then
HotKey := ord(AlphabetTOT^.GetUpcase(chr(HotKey)));
while (Temp <> Nil) and Proceed do
begin
if Temp^.Item^.IsHotKey(Hotkey) then
Proceed := false
else
Temp := Temp^.NextNode;
end;
HotkeyItemPtr := Temp;
end; {FormOBJ.HotkeyItemPtr}
function FormOBJ.HotSpotItemPtr(X,Y:byte):pItemNode;
{returns a pointer to the item which can has been clicked on with the mouse --
if no item is found the function returns nil}
var
Temp: pItemNode;
proceed: boolean;
begin
Temp := vItemStack;
Proceed := true;
while (Temp <> Nil) and Proceed do
begin
if Temp^.Item^.OnTarget(X,Y) then
Proceed := false
else
Temp := Temp^.NextNode;
end;
HotSpotItemPtr := Temp;
end; {FormOBJ.HotSpotItemPtr}
procedure FormOBJ.BroadcastSignal(TheSig:tSignal; SignalSource: pItemNode);
{recursive signal passer - an item which is handling a signal may raise
an additional signal}
var
ItemPtr: pItemNode;
NewSig: tSignal;
begin
ItemPtr := SignalSource;
repeat
{move on to next node}
if ItemPtr^.NextNode <> nil then
ItemPtr := ItemPtr^.NextNode
else
ItemPtr := vItemStack;
NewSig.ID := 0; {do nothing}
ItemPtr^.Item^.HandleSignal(TheSig,NewSig);
if NewSig.ID <> 0 then
BroadcastSignal(NewSig,ItemPtr);
if TheSig.ID = 0 then
begin
SignalSource^.Item^.ShutdownSignal(TheSig);
if TheSIG.ID = 0 then
exit
else
BroadcastSignal(TheSig,SignalSource);
end;
until ItemPtr = SignalSource;
SignalSource^.Item^.ShutdownSignal(TheSig);
end; {FormOBJ.BroadcastSignal}
procedure FormOBJ.HelpTask(ID:word);
{}
begin
vHelpHook(ID);
end; {FormOBJ.HelpTask}
function FormOBJ.CharTask(var K:word;var X,Y:byte;var FieldID:word):tAction;
{}
begin
CharTask := vCharHook(K,X,Y,FieldID);
end; {FormOBJ.CharTask}
function FormOBJ.EnterTask(var NewID:word; OldID:word): tAction;
{}
begin
EnterTask := vEnterHook(NewID,OldID);
end; {FormOBJ.EnterTask}
function FormOBJ.LeaveTask(var FieldID:word): tAction;
{}
begin
LeaveTask := vLeaveHook(FieldID);
end; {FormOBJ.LeaveTask}
procedure FormOBJ.AdjustKey(var Key:word;var X,Y: byte);
{abstract}
begin end;
function FormOBJ.Go: tAction;
{}
var
HookAction,
Task : tAction;
NewItemPtr: pItemNode;
LastActiveItemID,ID,K,W: word;
X,Y:byte;
Mvisible:boolean;
procedure ProcessTask;
{}
var TheSig: tSignal;
begin
case Task of
NextField: begin
NewItemPtr := vActiveItem;
repeat
if NewItemPtr^.NextNode <> Nil then
NewItemPtr := NewItemPtr^.NextNode
else
NewItemPtr := vItemStack;
until NewItemPtr^.Item^.Active;
end;
PrevField: begin
NewItemPtr := vActiveItem;
repeat
if NewItemPtr^.PrevNode <> Nil then
NewItemPtr := NewItemPtr^.PrevNode
else
NewItemPtr := EndNode;
until NewItemPtr^.Item^.Active;
end;
Refresh: DisplayItems;
Signal: begin
vActiveItem^.Item^.RaiseSignal(TheSig);
if TheSig.ID <> 0 then
BroadcastSignal(TheSig,vActiveItem);
end;
Help: begin
HelpTask(LastActiveItemID);
if LastActiveItemID <> 0 then
begin
if LastActiveItemID <> HelpID then
if vActiveItem^.Item^.Suspend then
vActiveItem := IDItemPtr(LastActiveItemID);
end;
Task := vActiveItem^.Item^.Select(0,X,Y);
end;
end; {case}
end; {ProcessTask}
procedure ProcessChar;
{}
var Bypassing, Ignore : boolean;
begin
Key.GetInput;
K := Key.LastKey;
X := Key.LastX;
Y := key.LastY;
Ignore := false;
AdjustKey(K,X,Y);
if K = 600 then
HookAction := Escaped
else
begin
ID := vActiveItem^.Item^.GetID;
HookAction := CharTask(K,X,Y,ID);
end;
Case HookAction of
Escaped,
Finished,
Stop1..Stop9 : begin
Task := HookAction;
exit;
end;
Refresh: DisplayItems;
end; {case}
if ID <> vActiveItem^.Item^.GetID then {hook changed the active field}
NewItemPtr := IDItemPtr(ID)
else
NewItemPtr := HotKeyItemPtr(K);
if NewItemPtr = nil then {no hotkey pressed}
begin
if (K = 513) or (K=523) then {mouse Pressed}
begin
NewItemPtr := HotSpotItemPtr(X,Y);
if NewItemPtr = vActiveItem then
begin
Task := vActiveItem^.Item^.ProcessKey(K,X,Y);
ProcessTask;
Ignore := true;
end;
if NewItemPtr = nil then
Ignore := true;
end
else
begin
Task := vActiveItem^.Item^.ProcessKey(K,X,Y);
ProcessTask;
end;
end;
if (NewItemPtr <> Nil) and (Ignore = false) then
begin
ByPassing := false;
repeat
if EscapingForm then
begin
Task := Escaped;
end
else if FormHelpCalled then
begin
HelpTask(vActiveItem^.Item^.GetID);
Task := none;
FormHelpCalled := false;
end
else
begin
if Bypassing or vActiveItem^.Item^.Suspend then
begin
{Leave Hook}
if (vActiveItem^.Item^.Active)
and (Bypassing = false) then {don't Hook if Bypassing}
begin
ID := vActiveItem^.Item^.GetID;
HookAction := LeaveTask(ID);
Case HookAction of
Escaped,
Finished,
Stop1..Stop9 : begin
Task := HookAction;
exit;
end;
Refresh: DisplayItems;
end; {case}
if ID <> vActiveItem^.Item^.GetID then {hook changed the active field}
NewItemPtr := IDItemPtr(ID);
end;
{Change active fields}
if NewItemPtr^.Item^.Active then
begin
vActiveItem := NewItemPtr;
{Enter Hook}
ID := vActiveItem^.Item^.GetID;
HookAction := EnterTask(ID,LastActiveItemID);
Case HookAction of
Escaped,
Finished,
Stop1..Stop9: begin
Task := HookAction;
exit;
end;
Refresh: DisplayItems;
end; {case}
if ID <> vActiveItem^.Item^.GetID then {hook changed the active field}
begin
ByPassing := true;
NewItemPtr := IDItemPtr(ID);
Task := None;
end
else
begin
ByPassing := false;
W := vActiveItem^.Item^.GetID;
if ((W <> 0) and (W <> HelpID))
or ((W = HelpID) and ((K <> 513) and (K <> vActiveItem^.Item^.GetHotKey))) then
LastActiveItemID := W;
Task := vActiveItem^.Item^.Select(K,X,Y);
end;
end
else
{No Enter Hook for inactive tasks}
Task := NewItemPtr^.Item^.Select(K,X,Y);
ProcessTask;
end
else {suspension failed due to validation error}
Task := None; {don't leave field}
end;
until (Bypassing = false) and ((Task in [NextField,PrevField]) = false);
end;
end; {ProcessChar}
begin
EscapingForm := false;
FormHelpCalled := false;
DisplayItems;
Mvisible := Mouse.Visible;
if not MVisible then
Mouse.Show;
{No Enter Hook at initial start-up}
if not vActiveItem^.Item^.Visible then
begin
vActiveItem := vItemStack;
while (vActiveItem <> Nil) and (vActiveItem^.Item^.Visible = false) do
vActiveItem := vActiveItem^.NextNode;
end;
Task := vActiveItem^.Item^.Select(0,0,0);
LastActiveItemID := vActiveItem^.Item^.GetID;
Task := None;
Repeat
ProcessChar;
Until (Task in [Finished,Escaped,Stop1..Stop9]);
if Task <> Escaped then
if vActiveItem^.Item^.Suspend then;
Go := Task;
if not MVisible then
Mouse.Hide;
EscapingForm := false;
FormHelpCalled := false;
end; {FormOBJ.Go}
destructor FormOBJ.Done;
{frees all allocated memory for the linked list}
var
Temp1, Temp2: pItemNode;
begin
if vItemStack <> nil then
begin
Temp1 := vItemStack;
Temp2 := Temp1^.NextNode;
while Temp2 <> nil do
begin
Freemem(Temp1,sizeof(Temp1^));
Temp1 := Temp2;
Temp2 := Temp1^.NextNode;
end;
Freemem(Temp1,sizeof(Temp1^));
end;
end; {destructor FormOBJ.Done}
{||||||||||||||||||||||||||||||||||||||||||||||||}
{ }
{ W i n A c t i o n O B J M E T H O D S }
{ }
{||||||||||||||||||||||||||||||||||||||||||||||||}
constructor WinFormOBJ.Init;
{}
begin
New(vWinPtr,Init);
FormOBJ.Init;
end; {WinFormOBJ.Init}
procedure WinFormOBJ.AdjustKey(var Key:word;var X,Y: byte);
{}
var WX,WY: byte;
TempX,TempY: integer;
begin
vWinPtr^.WinKey(Key,X,Y);
TempX := X;
TempY := Y;
WX := vWinPtr^.GetX;
WY := vWinPtr^.GetY;
if (Key > 600) or (TempX < WX) or (TempY < WY) then
begin
TempX := 0;
TempY := 0;
end
else
begin
Case vWinPtr^.GetStyle of
0: begin
dec(TempX,pred(WX));
dec(TempY,pred(WY));
end;
6: begin
dec(TempX,pred(WX));
dec(TempY,WY + 2);
end;
else begin
dec(TempX,WX);
dec(TempY,WY);
end;
end; {case}
end;
if TempX > 0 then
X := TempX
else
X := 0;
if TempY > 0 then
Y := TempY
else
Y := 0;
end; {WinFormOBJ.AdjustKey}
function WinFormOBJ.Win: MoveWinPtr;
{}
begin
Win := vWinPtr;
end; {WinFormOBJ.Win}
procedure WinFormOBJ.Draw;
{}
begin
vWinPtr^.Draw;
end; {WinFormOBJ.DisplayItems}
destructor WinFormOBJ.Done;
{}
begin
Dispose(vWinPtr,Done);
FormOBJ.Done;
end; {WinFormOBJ.Done}
{|||||||||||||||||||||||||||||||||||||||||||||||}
{ }
{ U N I T I N I T I A L I Z A T I O N }
{ }
{|||||||||||||||||||||||||||||||||||||||||||||||}
procedure IO1Init;
{initilizes objects and global variables}
begin
new(IOTOT,Init);
end; {IO1Init}
{end of unit - add initialization routines below}
{$IFNDEF OVERLAY}
begin
IO1Init;
{$ENDIF}
end.