Enhanced listbox search, also much more ANSI efficient.
This commit is contained in:
mysticbbs
parent
76acbaf774
commit
fa5e64d5ea
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@ -47,7 +47,7 @@ Type
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End;
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TAnsiMenuList = Class
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List : Array[1..65535] of ^TAnsiMenuListBoxRec;
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List : Array[1..10000] of ^TAnsiMenuListBoxRec;
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Box : TAnsiMenuBox;
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HiAttr : Byte;
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LoAttr : Byte;
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@ -72,6 +72,7 @@ Type
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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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Constructor Create;
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Destructor Destroy; Override;
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@ -82,6 +83,8 @@ Type
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Procedure SetStatusProc (P: TAnsiMenuListStatusProc);
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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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@ -173,9 +176,6 @@ Begin
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Input := TAnsiMenuInput.Create;
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Box.Header := ' ' + Header + ' ';
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//Input.Attr := 15 + 4 * 16;
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//Input.FillAttr := 7 + 4 * 16;
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Input.LoChars := #13#27;
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Box.Open (WinSize, 10, WinSize + Offset + 3, 15);
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@ -420,6 +420,7 @@ Begin
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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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Session.io.BufFlush;
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@ -459,63 +460,110 @@ Begin
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Inherited Destroy;
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End;
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// this class is very inefficient and needs to have updates redone
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// BarON
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// BarOFF
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// UpdatePercent
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Procedure TAnsiMenuList.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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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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WriteXY (TagPos, Y, TagAttr, TagChar)
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Else
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WriteXY (TagPos, Y, TagAttr, ' ');
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End;
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Procedure TAnsiMenuList.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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WriteXY (X1 + Width + 1, LastBarPos, Box.BoxAttr2, #176);
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LastBarPos := NewPos;
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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 TAnsiMenuList.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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Loop : LongInt;
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CurRec : Integer;
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Begin
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For A := 0 to WinSize - 1 Do Begin
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C := TopPage + A;
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For Loop := 0 to WinSize - 1 Do Begin
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CurRec := TopPage + Loop;
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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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WriteXY (X1 + 1, Y1 + 1 + A, B, S);
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If PosBar Then
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WriteXY (X1 + Width + 1, Y1 + 1 + A, Box.BoxAttr2, #176);
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If AllowTag Then
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If (C <= ListMax) and (List[C]^.Tagged = 1) Then
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WriteXY (TagPos, Y1 + 1 + A, TagAttr, TagChar)
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Else
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WriteXY (TagPos, Y1 + 1 + A, TagAttr, ' ');
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UpdateBar (X1 + 1, Y1 + 1 + Loop, CurRec, CurRec = Picked);
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End;
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If PosBar Then
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If (ListMax > 0) and (WinSize > 0) Then Begin
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A := (Picked * WinSize) DIV ListMax;
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If Picked >= ListMax Then A := Pred(WinSize);
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If (A < 0) or (Picked = 1) Then A := 0;
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WriteXY (X1 + Width + 1, Y1 + 1 + A, Box.BoxAttr2, #178);
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End;
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UpdatePercent;
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Session.io.BufFlush;
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End;
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Procedure TAnsiMenuList.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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A : Word;
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sPos : Word;
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ePos : Word;
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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[80];
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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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@ -532,11 +580,22 @@ Begin
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WinSize := BY2 - Y1 - 1;
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TagPos := X1 + 1;
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If PosBar Then
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For Count := 1 to WinSize Do
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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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Repeat
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If Not LastWasChar Then
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SearchStr := ''
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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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@ -552,10 +611,21 @@ Begin
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TopPage := 1;
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Update;
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End;
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#72 : If (TopPage > 1) Or (Picked > 1) Then 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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#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 { page up / left arrow }
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@ -568,11 +638,7 @@ Begin
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Picked := ListMax;
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Update;
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End;
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#80 : If Picked < ListMax Then Begin
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Inc (Picked);
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If Picked > TopPage + WinSize - 1 Then Inc (TopPage);
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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 { pgdn/right }
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If ListMax > WinSize Then Begin
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@ -580,11 +646,14 @@ Begin
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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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Else
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@ -602,31 +671,34 @@ 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 + WinSize - 1 Then Inc (TopPage);
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Update;
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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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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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SavedTop := TopPage;
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SavedRec := Picked;
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LastWasChar := True;
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SearchStr := SearchStr + 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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StartPos := Picked + 1;
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EndPos := ListMax;
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If sPos > ListMax Then sPos := 1;
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If StartPos > ListMax Then StartPos := 1;
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A := sPos;
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Count := StartPos;
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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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While (Count <= EndPos) Do Begin
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If strUpper(Copy(List[Count]^.Name, 1, Length(SearchStr))) = SearchStr Then Begin
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While Count <> Picked Do Begin
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If Picked < Count Then Begin
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If Picked < ListMax Then Inc (Picked);
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If Picked > TopPage + WinSize - 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 > Count 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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@ -634,17 +706,24 @@ Begin
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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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If (Count = ListMax) and First Then Begin
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Count := 0;
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StartPos := 1;
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EndPos := Picked - 1;
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First := False;
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End;
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Inc (A);
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Inc (Count);
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End;
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Update;
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If TopPage <> SavedTop Then
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Update
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Else
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If Picked <> SavedRec Then Begin
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UpdateBar (X1 + 1, Y1 + SavedRec - SavedTop + 1, SavedRec, False);
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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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Until False;
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End;
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