493 lines
12 KiB
ObjectPascal
493 lines
12 KiB
ObjectPascal
{$I M_OPS.PAS}
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Unit m_MenuBox;
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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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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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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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Screen : TOutput;
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List : Array[1..65535] of ^TMenuListBoxRec;
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Box : TMenuBox;
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InKey : TInput;
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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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Length : Integer;
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X1 : Byte;
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Y1 : Byte;
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NoInput : Boolean;
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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 Clear;
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Procedure Delete (RecPos : Word);
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{ Procedure Focus (Num: Word);}
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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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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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Const
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BF : Array[1..8] of String[8] =
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('<27>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD>',
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'<27>ͻ<EFBFBD><CDBB><EFBFBD>ͼ',
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'<27>ķ<EFBFBD><C4B7><EFBFBD>Ľ',
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'<27><EFBFBD><CDB8><EFBFBD>;',
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'<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>',
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'<27><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>',
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' ',
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'.-.||`-''');
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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, BF[FrameType][1] + strRep(BF[FrameType][2], B));
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Console.WriteXY (X2, Y1, BoxAttr4, BF[FrameType][3]);
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For A := Y1 + 1 To Y2 - 1 Do Begin
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Console.WriteXY (X1, A, BoxAttr, BF[FrameType][4] + strRep(' ', B));
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Console.WriteXY (X2, A, BoxAttr2, BF[FrameType][5]);
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End;
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Console.WriteXY (X1, Y2, BoxAttr3, BF[FrameType][6]);
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Console.WriteXY (X1+1, Y2, BoxAttr2, strRep(BF[FrameType][7], B) + BF[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 to X2 + 1 Do Begin
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Ch := Console.ReadCharXY(B, A);
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Console.WriteXY (B + 1, 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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Screen := S;
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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 := #32;
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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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StatusProc := NIL;
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Screen.BufFlush;
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End;
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Procedure TMenuList.Clear;
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Var
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A : Word;
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Begin
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For A := 1 to ListMax Do Dispose(List[A]);
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ListMax := 0;
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Marked := 0;
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End;
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(*
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Procedure TMenuList.Focus (Num: Word);
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Var
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NewPicked : Word;
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NewTopPage : Word;
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Count : Word;
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Begin
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If Num > ListMax Then Exit;
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Picked := 1;
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ListMax :=
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For Count := 1 to ListMax Do
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If Picked < ListMax Then Inc (Picked);
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If Picked > TopPage + Length - 1 Then Inc (TopPage);
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End;
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*)
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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.Update;
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Var
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A : LongInt;
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S : String;
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B : Integer;
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C : Integer;
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Begin
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For A := 0 to Length - 1 Do Begin
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C := TopPage + A;
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If C <= ListMax Then Begin
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S := ' ' + List[C]^.Name + ' ';
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Case Format of
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0 : S := strPadR (S, Width, ' ');
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1 : S := strPadL (S, Width, ' ');
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2 : S := strPadC (S, Width, ' ');
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End;
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End Else
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S := strRep(' ', Width);
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If C = Picked Then B := HiAttr Else B := LoAttr;
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Screen.WriteXY (X1 + 1, Y1 + 1 + A, B, S);
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If PosBar Then
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Screen.WriteXY (X1 + Width + 1, Y1 + 1 + A, Box.BoxAttr2, '<27>');
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If AllowTag Then
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If (C <= ListMax) and (List[C]^.Tagged = 1) Then
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Screen.WriteXY (TagPos, Y1 + 1 + A, TagAttr, TagChar)
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Else
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Screen.WriteXY (TagPos, Y1 + 1 + A, TagAttr, ' ');
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End;
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If PosBar Then
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If (ListMax > 0) and (Length > 0) Then Begin
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A := (Picked * Length) DIV ListMax;
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If Picked >= ListMax Then A := Pred(Length);
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If (A < 0) or (Picked = 1) Then A := 0;
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Screen.WriteXY (X1 + Width + 1, Y1 + 1 + A, Box.BoxAttr2, '<27>');
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End;
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End;
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Procedure TMenuList.Open (BX1, BY1, BX2, BY2 : Byte);
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Var
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Ch : Char;
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A : Word;
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sPos : Word;
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ePos : Word;
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First : 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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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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Length := BY2 - Y1 - 1;
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TagPos := X1 + 1;
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If NoInput Then Exit;
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Repeat
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Update;
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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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Case Ch of
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#71 : Begin { home }
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Picked := 1;
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TopPage := 1;
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End;
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#72 : Begin { up arrow }
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If Picked > 1 Then Dec (Picked);
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If Picked < TopPage Then Dec (TopPage);
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End;
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#73 : Begin { page up }
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If Picked - Length > 1 Then Dec (Picked, Length) Else Picked := 1;
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If TopPage - Length < 1 Then TopPage := 1 Else Dec(TopPage, Length);
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End;
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#79 : Begin { end }
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If ListMax > Length Then TopPage := ListMax - Length + 1;
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Picked := ListMax;
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End;
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#80 : Begin { down arrow }
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If Picked < ListMax Then Inc (Picked);
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If Picked > TopPage + Length - 1 Then Inc (TopPage);
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End;
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#81 : If ListMax > 0 Then Begin { page down }
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If ListMax > Length Then Begin
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If Picked + Length > ListMax Then
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Picked := ListMax
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Else
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Inc (Picked, Length);
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Inc (TopPage, Length);
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If TopPage + Length > ListMax Then TopPage := ListMax - Length + 1;
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End Else Begin
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Picked := ListMax;
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End;
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End;
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Else
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If Pos(Ch, HiChars) > 0 Then Begin
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ExitCode := Ch;
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Exit;
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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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If Picked < ListMax Then Inc (Picked);
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If Picked > TopPage + Length - 1 Then Inc (TopPage);
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End Else
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If Pos(Ch, LoChars) > 0 Then Begin
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ExitCode := Ch;
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Exit;
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End Else Begin
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Ch := UpCase(Ch);
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First := True;
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sPos := Picked + 1;
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ePos := ListMax;
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If sPos > ListMax Then sPos := 1;
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A := sPos;
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While (A <= ePos) Do Begin
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If UpCase(List[A]^.Name[1]) = Ch Then Begin
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While A <> Picked Do Begin
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If Picked < A Then Begin
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If Picked < ListMax Then Inc (Picked);
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If Picked > TopPage + Length - 1 Then Inc (TopPage);
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End Else
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If Picked > A Then Begin
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If Picked > 1 Then Dec (Picked);
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If Picked < TopPage Then Dec (TopPage);
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End;
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End;
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Break;
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End;
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If (A = ListMax) and First Then Begin
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A := 0;
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sPos := 1;
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ePos := Picked - 1;
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First := False;
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End;
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Inc (A);
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End;
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End;
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End;
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Until False;
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End;
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Procedure TMenuList.Close;
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Begin
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If Not NoWindow Then Box.Close;
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End;
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Procedure TMenuList.Add (Str : String; B : Byte);
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Begin
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Inc (ListMax);
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New (List[ListMax]);
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List[ListMax]^.Name := Str;
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List[ListMax]^.Tagged := B;
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If B = 1 Then Inc(Marked);
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End;
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Procedure TMenuList.Get (Num : Word; Var Str : String; Var B : Boolean);
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Begin
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Str := '';
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B := False;
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If Num <= ListMax Then Begin
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Str := List[Num]^.Name;
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B := List[Num]^.Tagged = 1;
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End;
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End;
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Procedure TMenuList.SetStatusProc (P : TMenuListStatusProc);
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Begin
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StatusProc := P;
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End;
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End.
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