679 lines
17 KiB
ObjectPascal
679 lines
17 KiB
ObjectPascal
// ====================================================================
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// Mystic BBS Software Copyright 1997-2013 By James Coyle
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// ====================================================================
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//
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// This file is part of Mystic BBS.
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//
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// Mystic BBS is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Mystic BBS is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Mystic BBS. If not, see <http://www.gnu.org/licenses/>.
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//
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// ====================================================================
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Unit m_MenuBox;
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{$I M_OPS.PAS}
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Interface
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Uses
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m_Types,
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m_Input,
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m_Output;
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Const
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BoxFrameType : Array[1..8] of String[8] =
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('ÚÄ¿³³ÀÄÙ',
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'ÉÍ»ººÈͼ',
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'ÖÄ·ººÓĽ',
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'Õ͸³³Ô;',
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'ÛßÛÛÛÛÜÛ',
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'ÛßÜÛÛßÜÛ',
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' ',
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'.-.||`-''');
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Type
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TMenuBox = Class
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Console : TOutput;
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Image : TConsoleImageRec;
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HideImage : ^TConsoleImageRec;
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FrameType : Byte;
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BoxAttr : Byte;
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Box3D : Boolean;
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BoxAttr2 : Byte;
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BoxAttr3 : Byte;
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BoxAttr4 : Byte;
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Shadow : Boolean;
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ShadowAttr : Byte;
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HeadAttr : Byte;
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HeadType : Byte;
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Header : String;
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WasOpened : Boolean;
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Constructor Create (Var Screen: TOutput);
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Destructor Destroy; Override;
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Procedure Open (X1, Y1, X2, Y2: Byte);
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Procedure Close;
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Procedure Hide;
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Procedure Show;
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End;
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TMenuListStatusProc = Procedure (Num: Word; Str: String);
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TMenuListSearchProc = Procedure (Var Owner: Pointer; Str: String);
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TMenuListBoxRec = Record
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Name : String;
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Tagged : Byte; { 0 = false, 1 = true, 2 = never }
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End;
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TMenuList = Class
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InKey : TInput;
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List : Array[1..10000] of ^TMenuListBoxRec;
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Box : TMenuBox;
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HiAttr : Byte;
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LoAttr : Byte;
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PosBar : Boolean;
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Format : Byte;
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LoChars : String;
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HiChars : String;
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ExitCode : Char;
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Picked : Integer;
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TopPage : Integer;
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NoWindow : Boolean;
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ListMax : Integer;
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AllowTag : Boolean;
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TagChar : Char;
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TagKey : Char;
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TagPos : Byte;
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TagAttr : Byte;
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Marked : Word;
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StatusProc : TMenuListStatusProc;
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Width : Integer;
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WinSize : Integer;
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X1 : Byte;
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Y1 : Byte;
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NoInput : Boolean;
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LastBarPos : Byte;
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SearchProc : TMenuListSearchProc;
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SearchX : Byte;
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SearchY : Byte;
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SearchA : Byte;
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Constructor Create (Var S: TOutput);
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Destructor Destroy; Override;
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Procedure Open (BX1, BY1, BX2, BY2: Byte);
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Procedure Close;
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Procedure Add (Str: String; B: Byte);
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Procedure Get (Num: Word; Var Str: String; Var B: Boolean);
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Procedure SetStatusProc (P: TMenuListStatusProc);
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Procedure SetSearchProc (P: TMenuListSearchProc);
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Procedure Clear;
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Procedure Delete (RecPos : Word);
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Procedure UpdatePercent;
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Procedure UpdateBar (X, Y: Byte; RecPos: Word; IsHi: Boolean);
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Procedure Update;
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End;
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Implementation
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Uses
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m_Strings;
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Procedure DefListBoxSearch (Var Owner: Pointer; Str: String);
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Begin
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If Str = '' Then
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Str := strRep(BoxFrameType[TMenuList(Owner).Box.FrameType][7], 17)
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Else Begin
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If Length(Str) > 15 Then
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Str := Copy(Str, Length(Str) - 15 + 1, 255);
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Str := '[' + strLower(Str) + ']';
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While Length(Str) < 17 Do
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Str := Str + BoxFrameType[TMenuList(Owner).Box.FrameType][7];
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End;
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TMenuList(Owner).Box.Console.WriteXY (
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TMenuList(Owner).SearchX,
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TMenuList(Owner).SearchY,
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TMenuList(Owner).SearchA,
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Str);
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End;
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Constructor TMenuBox.Create (Var Screen: TOutput);
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Begin
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Inherited Create;
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Console := Screen;
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Shadow := True;
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ShadowAttr := 0;
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Header := '';
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FrameType := 6;
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Box3D := True;
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BoxAttr := 15 + 7 * 16;
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BoxAttr2 := 8 + 7 * 16;
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BoxAttr3 := 15 + 7 * 16;
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BoxAttr4 := 8 + 7 * 16;
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HeadAttr := 15 + 1 * 16;
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HeadType := 0;
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HideImage := NIL;
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WasOpened := False;
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FillChar(Image, SizeOf(TConsoleImageRec), 0);
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Console.BufFlush;
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End;
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Destructor TMenuBox.Destroy;
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Begin
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Inherited Destroy;
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End;
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Procedure TMenuBox.Open (X1, Y1, X2, Y2: Byte);
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Var
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A : Integer;
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B : Integer;
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Ch : Char;
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Begin
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If Not WasOpened Then
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If Shadow Then
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Console.GetScreenImage(X1, Y1, X2 + 2{3}, Y2 + 1, Image)
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Else
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Console.GetScreenImage(X1, Y1, X2, Y2, Image);
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WasOpened := True;
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B := X2 - X1 - 1;
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If Not Box3D Then Begin
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BoxAttr2 := BoxAttr;
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BoxAttr3 := BoxAttr;
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BoxAttr4 := BoxAttr;
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End;
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Console.WriteXY (X1, Y1, BoxAttr, BoxFrameType[FrameType][1] + strRep(BoxFrameType[FrameType][2], B));
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Console.WriteXY (X2, Y1, BoxAttr4, BoxFrameType[FrameType][3]);
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For A := Y1 + 1 To Y2 - 1 Do Begin
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Console.WriteXY (X1, A, BoxAttr, BoxFrameType[FrameType][4] + strRep(' ', B));
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Console.WriteXY (X2, A, BoxAttr2, BoxFrameType[FrameType][5]);
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End;
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Console.WriteXY (X1, Y2, BoxAttr3, BoxFrameType[FrameType][6]);
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Console.WriteXY (X1+1, Y2, BoxAttr2, strRep(BoxFrameType[FrameType][7], B) + BoxFrameType[FrameType][8]);
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If Header <> '' Then
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Case HeadType of
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0 : Console.WriteXY (X1 + 1 + (B - Length(Header)) DIV 2, Y1, HeadAttr, Header);
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1 : Console.WriteXY (X1 + 1, Y1, HeadAttr, Header);
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2 : Console.WriteXY (X2 - Length(Header), Y1, HeadAttr, Header);
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End;
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If Shadow Then Begin
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For A := Y1 + 1 to Y2 + 1 Do
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For B := X2 + 1 to X2 + 2 Do Begin
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Ch := Console.ReadCharXY(B, A);
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Console.WriteXY (B, A, ShadowAttr, Ch);
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End;
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A := Y2 + 1;
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For B := (X1 + 2) To (X2 + 2) Do Begin
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Ch := Console.ReadCharXY(B, A);
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Console.WriteXY (B, A, ShadowAttr, Ch);
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End;
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End;
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End;
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Procedure TMenuBox.Close;
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Begin
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If WasOpened Then Console.PutScreenImage(Image);
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End;
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Procedure TMenuBox.Hide;
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Begin
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If Assigned(HideImage) Then FreeMem(HideImage, SizeOf(TConsoleImageRec));
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GetMem (HideImage, SizeOf(TConsoleImageRec));
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Console.GetScreenImage (Image.X1, Image.Y1, Image.X2, Image.Y2, HideImage^);
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Console.PutScreenImage (Image);
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End;
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Procedure TMenuBox.Show;
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Begin
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If Assigned (HideImage) Then Begin
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Console.PutScreenImage(HideImage^);
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FreeMem (HideImage, SizeOf(TConsoleImageRec));
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HideImage := NIL;
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End;
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End;
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Constructor TMenuList.Create (Var S: TOutput);
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Begin
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Inherited Create;
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Box := TMenuBox.Create(S);
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InKey := TInput.Create;
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ListMax := 0;
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HiAttr := 15 + 1 * 16;
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LoAttr := 1 + 7 * 16;
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PosBar := True;
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Format := 0;
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LoChars := #13#27;
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HiChars := '';
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NoWindow := False;
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AllowTag := False;
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TagChar := '*';
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TagKey := #09;
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TagPos := 0;
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TagAttr := 15 + 7 * 16;
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Marked := 0;
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Picked := 1;
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NoInput := False;
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LastBarPos := 0;
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StatusProc := NIL;
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SearchProc := NIL;
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SearchProc := @DefListBoxSearch;
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SearchX := 0;
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SearchY := 0;
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SearchA := 0;
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TopPage := 1;
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End;
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Procedure TMenuList.Clear;
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Var
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Count : Word;
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Begin
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For Count := 1 to ListMax Do
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Dispose(List[Count]);
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ListMax := 0;
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Marked := 0;
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End;
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Procedure TMenuList.Delete (RecPos : Word);
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Var
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Count : Word;
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Begin
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If List[RecPos] <> NIL Then Begin
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Dispose (List[RecPos]);
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For Count := RecPos To ListMax - 1 Do
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List[Count] := List[Count + 1];
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Dec (ListMax);
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End;
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End;
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Destructor TMenuList.Destroy;
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Begin
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Box.Free;
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InKey.Free;
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Clear;
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Inherited Destroy;
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End;
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Procedure TMenuList.UpdateBar (X, Y: Byte; RecPos: Word; IsHi: Boolean);
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Var
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Str : String;
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Attr : Byte;
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Begin
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If IsHi Then
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Attr := HiAttr
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Else
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Attr := LoAttr;
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If RecPos <= ListMax Then Begin
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Str := ' ' + List[RecPos]^.Name + ' ';
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Case Format of
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0 : Str := strPadR(Str, Width, ' ');
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1 : Str := strPadL(Str, Width, ' ');
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2 : Str := strPadC(Str, Width, ' ');
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End;
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End Else
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Str := strRep(' ', Width);
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Box.Console.WriteXY (X, Y, Attr, Str);
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If AllowTag Then
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If (RecPos <= ListMax) and (List[RecPos]^.Tagged = 1) Then
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Box.Console.WriteXY (TagPos, Y, TagAttr, TagChar)
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Else
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Box.Console.WriteXY (TagPos, Y, TagAttr, ' ');
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End;
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Procedure TMenuList.UpdatePercent;
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Var
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NewPos : LongInt;
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Begin
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If Not PosBar Then Exit;
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If (ListMax > 0) and (WinSize > 0) Then Begin
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NewPos := (Picked * WinSize) DIV ListMax;
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If Picked >= ListMax Then NewPos := Pred(WinSize);
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If (NewPos < 0) or (Picked = 1) Then NewPos := 0;
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NewPos := Y1 + 1 + NewPos;
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If LastBarPos <> NewPos Then Begin
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If LastBarPos > 0 Then
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Box.Console.WriteXY (X1 + Width + 1, LastBarPos, Box.BoxAttr2, #176);
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LastBarPos := NewPos;
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Box.Console.WriteXY (X1 + Width + 1, NewPos, Box.BoxAttr2, #178);
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End;
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End;
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End;
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Procedure TMenuList.Update;
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Var
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Loop : LongInt;
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CurRec : Integer;
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Begin
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For Loop := 0 to WinSize - 1 Do Begin
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CurRec := TopPage + Loop;
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UpdateBar (X1 + 1, Y1 + 1 + Loop, CurRec, CurRec = Picked);
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End;
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UpdatePercent;
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End;
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Procedure TMenuList.Open (BX1, BY1, BX2, BY2 : Byte);
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Procedure DownArrow;
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Begin
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If Picked < ListMax Then Begin
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If Picked >= TopPage + WinSize - 1 Then Begin
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Inc (TopPage);
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Inc (Picked);
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Update;
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End Else Begin
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UpdateBar (X1 + 1, Y1 + Picked - TopPage + 1, Picked, False);
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Inc (Picked);
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UpdateBar (X1 + 1, Y1 + Picked - TopPage + 1, Picked, True);
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UpdatePercent;
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End;
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End;
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End;
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Var
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Ch : Char;
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Count : Word;
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StartPos : Word;
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EndPos : Word;
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First : Boolean;
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SavedRec : Word;
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SavedTop : Word;
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SearchStr : String;
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LastWasChar : Boolean;
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Begin
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If Not NoWindow Then
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Box.Open (BX1, BY1, BX2, BY2);
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If SearchX = 0 Then SearchX := BX1 + 2;
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If SearchY = 0 Then SearchY := BY2;
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If SearchA = 0 Then SearchA := Box.BoxAttr4;
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X1 := BX1;
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Y1 := BY1;
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If (Picked < TopPage) or (Picked < 1) or (Picked > ListMax) or (TopPage < 1) or (TopPage > ListMax) Then Begin
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Picked := 1;
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TopPage := 1;
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End;
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Width := BX2 - X1 - 1;
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WinSize := BY2 - Y1 - 1;
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TagPos := X1 + 1;
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While Picked > TopPage + WinSize - 1 Do
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Inc (TopPage);
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If PosBar Then
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For Count := 1 to WinSize Do
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Box.Console.WriteXY (X1 + Width + 1, Y1 + Count, Box.BoxAttr2, #176);
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If NoInput Then Exit;
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Update;
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LastWasChar := False;
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SearchStr := '';
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Repeat
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If Not LastWasChar Then Begin
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If Assigned(SearchProc) And (SearchStr <> '') Then
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SearchProc (Self, '');
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SearchStr := ''
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End Else
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LastWasChar := False;
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If Assigned(StatusProc) Then
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If ListMax > 0 Then
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StatusProc(Picked, List[Picked]^.Name)
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Else
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StatusProc(Picked, '');
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Ch := InKey.ReadKey;
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Case Ch of
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#00 : Begin
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Ch := InKey.ReadKey;
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If Pos(Ch, HiChars) > 0 Then Begin
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If SearchStr <> '' Then Begin
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SearchStr := '';
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If Assigned(SearchProc) Then
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SearchProc(Self, SearchStr);
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End;
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ExitCode := Ch;
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Exit;
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End;
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Case Ch of
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#71 : If Picked > 1 Then Begin { home }
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Picked := 1;
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TopPage := 1;
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Update;
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End;
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#72 : If (Picked > 1) Then Begin
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If Picked <= TopPage Then Begin
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Dec (Picked);
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Dec (TopPage);
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Update;
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End Else Begin
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UpdateBar (X1 + 1, Y1 + Picked - TopPage + 1, Picked, False);
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Dec (Picked);
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UpdateBar (X1 + 1, Y1 + Picked - TopPage + 1, Picked, True);
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UpdatePercent;
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End;
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End;
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#73,
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#75 : If (TopPage > 1) or (Picked > 1) Then Begin
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If Picked - WinSize > 1 Then Dec (Picked, WinSize) Else Picked := 1;
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If TopPage - WinSize < 1 Then TopPage := 1 Else Dec(TopPage, WinSize);
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Update;
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End;
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#79 : If Picked < ListMax Then Begin
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If ListMax > WinSize Then TopPage := ListMax - WinSize + 1;
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Picked := ListMax;
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Update;
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End;
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#80 : DownArrow;
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#77,
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#81 : If (Picked <> ListMax) Then Begin
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If ListMax > WinSize Then Begin
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If Picked + WinSize > ListMax Then
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Picked := ListMax
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Else
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Inc (Picked, WinSize);
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Inc (TopPage, WinSize);
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If TopPage + WinSize > ListMax Then TopPage := ListMax - WinSize + 1;
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End Else Begin
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Picked := ListMax;
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End;
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Update;
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End;
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End;
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End;
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Else
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If AllowTag and (Ch = TagKey) and (List[Picked]^.Tagged <> 2) Then Begin
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If (List[Picked]^.Tagged = 1) Then Begin
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Dec (List[Picked]^.Tagged);
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Dec (Marked);
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End Else Begin
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List[Picked]^.Tagged := 1;
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Inc (Marked);
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End;
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DownArrow;
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End Else
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If Pos(Ch, LoChars) > 0 Then Begin
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If SearchStr <> '' Then Begin
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SearchStr := '';
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If Assigned(SearchProc) Then
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SearchProc(Self, SearchStr);
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End;
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ExitCode := Ch;
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Exit;
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End Else Begin
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If Ch <> #01 Then Begin
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If Ch = #25 Then Begin
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LastWasChar := False;
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Continue;
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End;
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If Ch = #8 Then Begin
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If Length(SearchStr) > 0 Then
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Dec(SearchStr[0])
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Else
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Continue;
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End Else
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If Ord(Ch) < 32 Then
|
|
Continue
|
|
Else
|
|
SearchStr := SearchStr + UpCase(Ch);
|
|
End;
|
|
|
|
SavedTop := TopPage;
|
|
SavedRec := Picked;
|
|
LastWasChar := True;
|
|
First := True;
|
|
StartPos := Picked + 1;
|
|
EndPos := ListMax;
|
|
|
|
If Assigned(SearchProc) Then
|
|
SearchProc(Self, SearchStr);
|
|
|
|
If StartPos > ListMax Then StartPos := 1;
|
|
|
|
Count := StartPos;
|
|
|
|
While (Count <= EndPos) Do Begin
|
|
If Pos(strUpper(SearchStr), strUpper(List[Count]^.Name)) > 0 Then Begin
|
|
|
|
While Count <> Picked Do Begin
|
|
If Picked < Count Then Begin
|
|
If Picked < ListMax Then Inc (Picked);
|
|
If Picked > TopPage + WinSize - 1 Then Inc (TopPage);
|
|
End Else
|
|
If Picked > Count Then Begin
|
|
If Picked > 1 Then Dec (Picked);
|
|
If Picked < TopPage Then Dec (TopPage);
|
|
End;
|
|
End;
|
|
Break;
|
|
End;
|
|
|
|
If (Count = ListMax) and First Then Begin
|
|
Count := 0;
|
|
StartPos := 1;
|
|
EndPos := Picked - 1;
|
|
First := False;
|
|
End;
|
|
|
|
Inc (Count);
|
|
End;
|
|
|
|
If TopPage <> SavedTop Then
|
|
Update
|
|
Else
|
|
If Picked <> SavedRec Then Begin
|
|
UpdateBar (X1 + 1, Y1 + SavedRec - SavedTop + 1, SavedRec, False);
|
|
UpdateBar (X1 + 1, Y1 + Picked - TopPage + 1, Picked, True);
|
|
UpdatePercent;
|
|
End;
|
|
End;
|
|
End;
|
|
Until False;
|
|
End;
|
|
|
|
Procedure TMenuList.Close;
|
|
Begin
|
|
If Not NoWindow Then Box.Close;
|
|
End;
|
|
|
|
Procedure TMenuList.Add (Str : String; B : Byte);
|
|
Begin
|
|
Inc (ListMax);
|
|
New (List[ListMax]);
|
|
|
|
List[ListMax]^.Name := Str;
|
|
List[ListMax]^.Tagged := B;
|
|
|
|
If B = 1 Then Inc(Marked);
|
|
End;
|
|
|
|
Procedure TMenuList.Get (Num : Word; Var Str : String; Var B : Boolean);
|
|
Begin
|
|
Str := '';
|
|
B := False;
|
|
|
|
If Num <= ListMax Then Begin
|
|
Str := List[Num]^.Name;
|
|
B := List[Num]^.Tagged = 1;
|
|
End;
|
|
End;
|
|
|
|
Procedure TMenuList.SetSearchProc (P: TMenuListSearchProc);
|
|
Begin
|
|
SearchProc := P;
|
|
End;
|
|
|
|
Procedure TMenuList.SetStatusProc (P: TMenuListStatusProc);
|
|
Begin
|
|
StatusProc := P;
|
|
End;
|
|
|
|
End.
|