source: cprs/branches/foia-cprs/CPRS-Chart/fDateRange.pas@ 1381

Last change on this file since 1381 was 459, checked in by Kevin Toppenberg, 16 years ago

Adding foia-cprs branch

File size: 3.0 KB
Line 
1unit fDateRange;
2
3interface
4
5uses
6 Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
7 fAutoSz, ORCtrls, StdCtrls, ORFn, ORDtTm;
8
9type
10 TfrmDateRange = class(TfrmAutoSz)
11 txtStart: TORDateBox;
12 txtStop: TORDateBox;
13 lblStart: TLabel;
14 lblStop: TLabel;
15 cmdOK: TButton;
16 cmdCancel: TButton;
17 lblInstruct: TOROffsetLabel;
18 procedure cmdOKClick(Sender: TObject);
19 procedure cmdCancelClick(Sender: TObject);
20 procedure FormCreate(Sender: TObject);
21 private
22 OKPressed: Boolean;
23 Flags: string;
24 end;
25
26function ExecuteDateRange(var Start, Stop: string; const AFlag, ATitle, Instruct,
27 StartLabel, StopLabel: string): Boolean;
28
29implementation
30
31{$R *.DFM}
32
33uses rCore;
34
35const
36 TX_INVALID_DATE = 'The date/time entered could not be validated.';
37 TC_INVALID_DATE = 'Unable to interpret date/time entry.';
38
39function ExecuteDateRange(var Start, Stop: string; const AFlag, ATitle, Instruct,
40 StartLabel, StopLabel: string): Boolean;
41var
42 frmDateRange: TfrmDateRange;
43begin
44 Result := False;
45 frmDateRange := TfrmDateRange.Create(Application);
46 try
47 ResizeFormToFont(TForm(frmDateRange));
48 with frmDateRange do
49 begin
50 if Flags <> '' then Flags := AFlag;
51 if ATitle <> '' then Caption := ATitle;
52 if Instruct <> '' then lblInstruct.Caption := Instruct;
53 if StartLabel <> '' then lblStart.Caption := StartLabel;
54 if StopLabel <> '' then lblStop.Caption := StopLabel;
55 txtStart.Text := Start;
56 txtStop.Text := Stop;
57 ShowModal;
58 if OKPressed then
59 begin
60 Start := txtStart.Text;
61 Stop := txtStop.Text;
62 Result := True;
63 end;
64 end;
65 finally
66 frmDateRange.Release;
67 end;
68end;
69
70procedure TfrmDateRange.FormCreate(Sender: TObject);
71begin
72 inherited;
73 OKPressed := False;
74end;
75
76procedure TfrmDateRange.cmdOKClick(Sender: TObject);
77const
78 TX_BAD_START = 'The start date is not valid.';
79 TX_BAD_STOP = 'The stop date is not valid.';
80 TX_STOPSTART = 'The stop date must be after the start date.';
81var
82 x, ErrMsg: string;
83begin
84 inherited;
85 ErrMsg := '';
86 txtStart.Validate(x);
87 if Length(x) > 0 then ErrMsg := ErrMsg + TX_BAD_START + CRLF;
88 with txtStop do
89 begin
90 Validate(x);
91 if Length(x) > 0 then ErrMsg := ErrMsg + TX_BAD_STOP + CRLF;
92 if (Length(Text) > 0) and (FMDateTime <= txtStart.FMDateTime)
93 then ErrMsg := ErrMsg + TX_STOPSTART;
94 end;
95 if Length(ErrMsg) > 0 then
96 begin
97 InfoBox(ErrMsg, TC_INVALID_DATE, MB_OK);
98 Exit;
99 end;
100
101// if ((Length(txtStart.Text) > 0) and (ValidDateTimeStr(txtStart.Text, Flags) < 0))
102// or ((Length(txtStop.Text) > 0) and (ValidDateTimeStr(txtStop.Text, Flags) < 0)) then
103// begin
104// InfoBox(TX_INVALID_DATE, TC_INVALID_DATE, MB_OK);
105// Exit;
106// end;
107
108 OKPressed := True;
109 Close;
110end;
111
112procedure TfrmDateRange.cmdCancelClick(Sender: TObject);
113begin
114 inherited;
115 Close;
116end;
117
118end.
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