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1 | unit UTimeEdit;
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2 |
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3 |
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4 | interface
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5 |
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6 | uses
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7 | Classes, SysUtils, StdCtrls, DateUtils, Controls, ExtCtrls;
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8 |
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9 | type
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10 |
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11 | { TTimeEdit }
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12 |
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13 | TTimeEdit = class(TEdit)
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14 | private
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15 | FTime: TTime;
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16 | procedure SetTime(const AValue: TTime);
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17 | procedure ChangeExecute(Sender: TObject);
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18 | public
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19 | constructor Create(AOwner: TComponent); override;
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20 | destructor Destroy; override;
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21 | published
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22 | property Time: TTime read FTime write SetTime;
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23 | end;
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24 |
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25 | procedure Register;
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26 |
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27 | implementation
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28 |
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29 | procedure Register;
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30 | begin
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31 | RegisterComponents('TEditExtensions', [TTimeEdit]);
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32 | end;
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33 |
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34 | { TTimeEdit }
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35 |
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36 | procedure TTimeEdit.ChangeExecute(Sender: TObject);
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37 | var
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38 | NewText: string;
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39 | Temp: TDateTime;
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40 | begin
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41 | NewText := Text;
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42 | Delete(NewText, SelStart + 1, 1);
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43 | if TryStrToTime(NewText, Temp) then
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44 | FTime := Temp;
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45 | SetTime(FTime);
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46 | end;
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47 |
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48 | procedure TTimeEdit.SetTime(const AValue: TTime);
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49 | var
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50 | LastPos: Integer;
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51 | begin
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52 | FTime := AValue;
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53 |
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54 | LastPos := SelStart;
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55 | OnChange := nil;
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56 | Text := TimeToStr(FTime);
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57 | if HourOf(FTime) < 10 then Text := '0' + Text;
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58 | OnChange := ChangeExecute;
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59 | if LastPos = 2 then Inc(LastPos);
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60 | if LastPos = 5 then Inc(LastPos);
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61 | SelStart := LastPos;
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62 | end;
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63 |
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64 | constructor TTimeEdit.Create(AOwner: TComponent);
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65 | begin
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66 | inherited Create(AOwner);
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67 | OnChange := ChangeExecute;
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68 | end;
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69 |
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70 | destructor TTimeEdit.Destroy;
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71 | begin
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72 | inherited Destroy;
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73 | end;
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74 |
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75 | end.
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76 |
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