lazarus-ccr/components/jvcllaz/examples/JvTimeFramework/tfshare.pas

{******************************************************************

                       JEDI-VCL Demo

 Copyright (C) 2002 Project JEDI

 Original author:

 Contributor(s):

 You may retrieve the latest version of this file at the JEDI-JVCL
 home page, located at http://jvcl.delphi-jedi.org

 The contents of this file are used with permission, subject to
 the Mozilla Public License Version 1.1 (the "License"); you may
 not use this file except in compliance with the License. You may
 obtain a copy of the License at
 http://www.mozilla.org/MPL/MPL-1_1Final.html

 Software distributed under the License is distributed on an
 "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 implied. See the License for the specific language governing
 rights and limitations under the License.

******************************************************************}

unit tfShare;

{$mode objfpc}{$H+}

interface

uses
  SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Buttons, checklst, ButtonPanel;

type

  { TShare }

  TShare = class(TForm)
    ButtonPanel1: TButtonPanel;
    ResourcesCheckList: TCheckListBox;
    procedure FormShow(Sender: TObject);
    procedure FormClose(Sender: TObject; var TheAction: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Share: TShare;

implementation

uses 
  tfMain, JvTFManager;

{$R *.lfm}

procedure TShare.FormShow(Sender: TObject);
var
  Appt : TJvTFAppt;
  I : Integer;
begin
  // First, get the selected appointment
  Appt := MainForm.JvTFDays1.SelAppt;

  // now roll through the resource list and check all resources
  // that are found in the appointment's list of schedules.
  with ResourcesCheckList do
    for I := 0 to Items.Count - 1 do
      Checked[I] := Appt.IndexOfSchedule(Items[I]) > -1;
end;

procedure TShare.FormClose(Sender: TObject; var TheAction: TCloseAction);
var
  TempList : TStringList;
  I : Integer;
begin
  If ModalResult = mrOK Then
    Begin
      // create and populate a temporary list of the selected resources
      // from the checklistbox.
      TempList := TStringList.Create;
      Try
        With ResourcesCheckList do
          For I := 0 to Items.Count - 1 do
            If Checked[I] Then
              TempList.Add(Items[I]);

        // Enforce a business rule where removing all resources from an
        // appointment causes the appointment to be deleted.
        // NOTE: This is NOT a requirement.  Feel free to implement any
        // business rules as you see fit.
        If TempList.Count > 0 Then
          // If at least one resource then change the appointment's
          // schedule list to match the temp list.
          MainForm.JvTFDays1.SelAppt.AssignSchedules(TempList)
        Else
          If MessageDlg('You have removed this appointment from all schedules.' +
                        '  This will cause the appointment to be deleted.' + #13#10 +
                        'Are you sure this is what you want to do?',
                        mtConfirmation, [mbYes, mbNo], 0) = mrYes Then
            With MainForm.JvTFDays1 do
              // Delete the appointment if that is what the user wants to do.
              ScheduleManager.dbDeleteAppt(SelAppt)
          Else
            TheAction := caNone;

      Finally
        TempList.Free;
      End;
    End;
end;

end.