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| Rev | Author | Line No. | Line |
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| 75 | daniel-mar | 1 | unit CHILDWIN; |
| 2 | |||
| 3 | interface |
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| 4 | |||
| 5 | uses Windows, Classes, Graphics, Forms, Controls, StdCtrls, ExtCtrls, SysUtils, Dialogs; |
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| 6 | |||
| 7 | type |
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| 8 | TMDIChild = class(TForm) |
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| 9 | Memo1: TMemo; |
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| 10 | Label1: TLabel; |
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| 11 | Button1: TButton; |
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| 12 | Timer1: TTimer; |
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| 13 | Button2: TButton; |
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| 14 | procedure FormClose(Sender: TObject; var Action: TCloseAction); |
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| 15 | procedure Button1Click(Sender: TObject); |
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| 16 | procedure Timer1Timer(Sender: TObject); |
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| 17 | procedure FormCreate(Sender: TObject); |
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| 18 | procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); |
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| 19 | procedure Button2Click(Sender: TObject); |
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| 20 | private |
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| 21 | StartTime: TDateTime; |
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| 22 | SecondsPrev: integer; |
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| 23 | SecondsTotal: integer; |
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| 24 | end; |
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| 25 | |||
| 26 | implementation |
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| 27 | |||
| 28 | {$R *.dfm} |
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| 29 | |||
| 30 | uses |
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| 31 | DateUtils, Math; |
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| 32 | |||
| 33 | procedure TMDIChild.Button1Click(Sender: TObject); |
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| 34 | begin |
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| 35 | if CompareValue(StartTime, 0) <> 0 then |
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| 36 | begin |
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| 37 | // Es läuft. Stoppe es |
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| 38 | SecondsTotal := SecondsPrev + trunc((Now - StartTime) * 24*60*60); |
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| 39 | SecondsPrev := SecondsTotal; |
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| 40 | StartTime := 0; |
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| 41 | memo1.Color := clWindow; |
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| 42 | end |
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| 43 | else |
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| 44 | begin |
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| 45 | // Es läuft nicht. Starte es. |
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| 46 | StartTime := Now; |
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| 47 | memo1.Color := clYellow; |
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| 48 | end; |
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| 49 | end; |
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| 50 | |||
| 51 | procedure TMDIChild.Button2Click(Sender: TObject); |
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| 52 | begin |
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| 53 | if MessageDlg('Stoppuhr ' + Trim(Memo1.Lines.Text) + ' wirklich resetten?', mtConfirmation, mbYesNoCancel, 0) = mrYes then |
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| 54 | begin |
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| 55 | if CompareValue(StartTime, 0) <> 0 then |
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| 56 | begin |
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| 57 | // Es läuft. Starte neu |
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| 58 | StartTime := Now; |
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| 59 | end |
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| 60 | else |
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| 61 | begin |
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| 62 | // Es läuft nicht. Resette Zeit |
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| 63 | SecondsPrev := 0; |
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| 64 | end; |
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| 65 | end; |
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| 66 | end; |
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| 67 | |||
| 68 | procedure TMDIChild.FormClose(Sender: TObject; var Action: TCloseAction); |
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| 69 | begin |
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| 70 | Action := caFree; |
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| 71 | end; |
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| 72 | |||
| 73 | procedure TMDIChild.FormCloseQuery(Sender: TObject; var CanClose: Boolean); |
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| 74 | begin |
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| 75 | CanClose := MessageDlg('Stoppuhr ' + Trim(Memo1.Lines.Text) + ' wirklich schließen?', mtConfirmation, mbYesNoCancel, 0) = mrYes; |
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| 76 | end; |
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| 77 | |||
| 78 | procedure TMDIChild.FormCreate(Sender: TObject); |
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| 79 | begin |
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| 80 | Constraints.MinWidth := Width; |
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| 81 | Constraints.MaxWidth := Width; |
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| 82 | Constraints.MinHeight := Height; |
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| 83 | Constraints.MaxHeight := Height; |
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| 84 | end; |
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| 85 | |||
| 86 | procedure TMDIChild.Timer1Timer(Sender: TObject); |
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| 87 | begin |
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| 88 | if CompareValue(StartTime, 0) <> 0 then |
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| 89 | begin |
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| 90 | SecondsTotal := SecondsPrev + trunc((Now - StartTime) * 24*60*60); |
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| 91 | end |
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| 92 | else |
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| 93 | begin |
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| 94 | SecondsTotal := SecondsPrev; |
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| 95 | end; |
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| 96 | |||
| 97 | label1.Caption := FormatDateTime('hh:nn:ss', SecondsTotal / SecsPerDay); |
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| 98 | end; |
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| 99 | |||
| 100 | end. |