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CD ROM Paradise Collection 4 1995 Nov.iso
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DATETIME.SWG
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0034_Clocks.pas
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Pascal/Delphi Source File
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1994-01-27
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2KB
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77 lines
{
▒> Does anyone know how to make a clock (ie....working second to second)
You can use the clock from the Gadgets unit included with BP7.
}
type
PClockView = ^TClockView;
TClockView = object(TView)
Refresh: Byte;
LastTime: DateTime;
TimeStr: string[13];
constructor Init(var Bounds: TRect);
procedure Draw; virtual;
function FormatTimeStr(M, S: Word): String; virtual;
procedure Update; virtual;
end;
function LeadingZero(w: Word): String;
var s: String;
begin
Str(w:0, s);
LeadingZero := Copy('00', 1, 2 - Length(s)) + s;
end;
constructor TClockView.Init(var Bounds: TRect);
begin
inherited Init(Bounds);
FillChar(LastTime, SizeOf(LastTime), #$FF);
TimeStr := '';
Refresh := 1;
end;
procedure TClockView.Draw;
var
B: TDrawBuffer;
C: Byte;
begin
C := GetColor(2);
MoveChar(B, ' ', C, Size.X);
MoveStr(B, TimeStr, C);
WriteLine(0, 0, Size.X, 1, B);
end;
procedure TClockView.Update;
var
h,m,s,hund: word;
AmPmStr : STRING;
vTmpStr : STRING;
begin
GetTime(h,m,s,hund);
if Abs(s - LastTime.sec) >= Refresh then
begin
with LastTime do
begin
IF ((H >= 12) AND (H < 24)) THEN
AmPmStr := ' p.m.'
ELSE
AmPmStr := ' a.m.';
IF H > 12 THEN
H := H - 12;
IF H = 0 THEN
H := 12;
end;
Str(H : 2, vTmpStr);
TimeStr := vTmpStr + FormatTimeStr(m, s) + AmPmStr;
DrawView;
end;
end;
function TClockView.FormatTimeStr(M, S: Word): String;
begin
FormatTimeStr := ':'+ LeadingZero(m) +
':' + LeadingZero(s);
end;