david
8a45a23220
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@7 05c56307-c608-d34a-929d-697000501d7a
341 lines
9.9 KiB
ObjectPascal
341 lines
9.9 KiB
ObjectPascal
unit RentUnit;
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interface
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{$I ..\cxVer.inc}
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
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Dialogs, cxStyles, cxGraphics, cxEdit, cxScheduler, cxSchedulerUtils,
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cxSchedulerCustomControls, cxSchedulerCustomResourceView, cxSchedulerStorage,
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cxSchedulerDayView, cxSchedulerDateNavigator, StdCtrls, cxContainer,
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cxDateNavigator, cxControls, ComCtrls, ExtCtrls, Math, cxDateUtils,
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{$IFDEF DELPHI6}
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DateUtils,
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{$ENDIF}
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cxLookAndFeelPainters, cxButtons, cxTextEdit, cxListBox, cxListView,
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ToolWin, Menus, cxSchedulerTimeGridView, cxSchedulerWeekView,
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cxSchedulerYearView;
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type
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TfrmRentCar = class(TForm)
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lvCars: TListView;
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DateNavigator: TcxDateNavigator;
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edtUserName: TcxTextEdit;
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lbxPeriod: TcxListBox;
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TimeScheduler: TcxScheduler;
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btnRent: TcxButton;
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btnCancel: TcxButton;
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lbChoosePeriod: TLabel;
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lbChooseDate: TLabel;
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lbChooseCar: TLabel;
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lbCustomerName: TLabel;
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lbChooseTime: TLabel;
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cxStyleRepository: TcxStyleRepository;
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cxBoldStyle: TcxStyle;
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procedure FormCreate(Sender: TObject);
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procedure FormDestroy(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure TimeSchedulerCustomDrawContent(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxSchedulerContentCellViewInfo;
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var ADone: Boolean);
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procedure DateNavigatorSelectionChanged(Sender: TObject;
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const AStart, AFinish: TDateTime);
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procedure DateNavigatorCustomDrawDayNumber(Sender: TObject;
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ACanvas: TcxCanvas;
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AViewInfo: TcxSchedulerDateNavigatorDayNumberViewInfo;
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var ADone: Boolean);
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procedure DateNavigatorCustomDrawContent(Sender: TObject;
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ACanvas: TcxCanvas;
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AViewInfo: TcxSchedulerDateNavigatorMonthContentViewInfo;
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var ADone: Boolean);
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procedure lvCarsSelectItem(Sender: TObject; Item: TListItem;
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Selected: Boolean);
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procedure lbxPeriodClick(Sender: TObject);
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procedure TimeSchedulerKeyDown(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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procedure btnRentClick(Sender: TObject);
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private
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FDayEvents: TcxSchedulerEventList;
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FDays: TcxSchedulerDateList;
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FEventsList: TcxSchedulerFilteredEventList;
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FPeriods: TcxSchedulerDateList;
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procedure AddPeriodTime(AStart, AFinish: TDateTime);
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procedure AddRent(AStart, AFinish: TDateTime);
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function DateTimeToTime(ATime: TDateTime): TDateTime;
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procedure FillTimeList;
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function Intersect(AStart1, AFinish1, AStart2, AFinish2: TDateTime): Boolean;
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function IntersectTime(var AStart1, AFinish1, AStart2, AFinish2: TDateTime): Boolean;
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procedure ProcessSelectItem(AIndex: Integer);
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procedure RentCar;
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function Storage: TcxSchedulerStorage;
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function TimeToDateTime(ATime: TDateTime): TDateTime;
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end;
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implementation
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uses
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ResourceMainUnit;
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{$R *.dfm}
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function CompareEvents(AEvent1, AEvent2: TcxSchedulerEvent): Integer;
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begin
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if AEvent1.Start = AEvent2.Start then
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Result := 0
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else
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if AEvent1.Start < AEvent2.Start then
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Result := -1
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else
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Result := 1;
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end;
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procedure TfrmRentCar.AddPeriodTime(AStart, AFinish: TDateTime);
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begin
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if AStart = AFinish then Exit;
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FPeriods.Add(TimeToDateTime(AStart));
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FPeriods.Add(TimeToDateTime(AFinish));
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lbxPeriod.Items.Add(TimeToStr(AStart) + '-' + TimeToStr(AFinish));
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end;
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procedure TfrmRentCar.AddRent(AStart, AFinish: TDateTime);
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begin
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if AStart >= AFinish then Exit;
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with Storage.createEvent do
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begin
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Start := AStart;
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Finish := AFinish;
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Caption := edtUserName.Text;
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ResourceID := GetIndex(lvCars);
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end;
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end;
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function TfrmRentCar.DateTimeToTime(ATime: TDateTime): TDateTime;
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begin
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Result := DateNavigator.Date +
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EncodeTime(Round(ATime) div 60, Round(ATime) mod 60, 0, 0);
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end;
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procedure TfrmRentCar.FillTimeList;
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var
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I: Integer;
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AInfo: TcxSchedulerEventConflictsInfo;
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begin
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lbxPeriod.Items.BeginUpdate;
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try
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FPeriods.Clear;
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lbxPeriod.Items.Clear;
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AInfo := TcxSchedulerEventConflictsInfo.Create(
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Storage, False, DateNavigator.Date + EncodeTime(0, 0, 0, 0),
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DateNavigator.Date + EncodeTime(23, 59, 0, 0), GetIndex(lvCars));
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try
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for I := 0 to AInfo.TimeRanges.Count - 1 do
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AddPeriodTime(AInfo.TimeRanges[I].Start, AInfo.TimeRanges[I].Finish);
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finally
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AInfo.Free;
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end;
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finally
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lbxPeriod.Items.EndUpdate;
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end;
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end;
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function TfrmRentCar.Intersect(AStart1, AFinish1, AStart2, AFinish2: TDateTime): Boolean;
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begin
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Result := (AStart1 < AFinish2) and (AStart2 < AFinish1);
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end;
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function TfrmRentCar.IntersectTime(
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var AStart1, AFinish1, AStart2, AFinish2: TDateTime): Boolean;
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begin
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if AStart2 > AStart1 then
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AStart1 := AStart2;
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if AFinish2 < AFinish1 then
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AFinish1 := AFinish2;
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Result := AFinish1 > AStart1;
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end;
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procedure TfrmRentCar.ProcessSelectItem(AIndex: Integer);
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var
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I, J: Integer;
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begin
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FDays.Clear;
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Storage.GetEvents(FEventsList, DateNavigator.RealFirstDate,
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DateNavigator.RealLastDate, AIndex);
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for I := Trunc(DateNavigator.RealFirstDate) to Trunc(DateNavigator.RealLastDate) do
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for J := 0 to FEventsList.Count - 1 do
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if FEventsList[J].IsDayEvent(I) then
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begin
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FDays.Add(I);
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Break
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end;
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DateNavigator.LayoutChanged;
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DateNavigatorSelectionChanged(DateNavigator, DateNavigator.Date, DateNavigator.Date);
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end;
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procedure TfrmRentCar.RentCar;
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var
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I: Integer;
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AStart, AFinish, AStart1, AFinish1: TDateTime;
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begin
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AStart := TimeScheduler.SelStart;
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AFinish := TimeScheduler.SelFinish;
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try
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for I := 0 to FDayEvents.Count do
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begin
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if I = 0 then
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AStart1 := DateOf(AStart);
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if I = FDayEvents.Count then
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AFinish1 := DateOf(AStart) + EncodeTime(23, 59, 0, 0)
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else
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AFinish1 := FDayEvents[I].Start;
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if (AStart1 < AFinish1) and IntersectTime(AStart1, AFinish1, AStart, AFinish) then
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AddRent(AStart1, AFinish1);
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if (FDayEvents.Count > 0) and (I < FDayEvents.Count) then
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AStart1 := FDayEvents[I].Finish;
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end;
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finally
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Storage.PostEvents;
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ProcessSelectItem(GetIndex(lvCars));
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TimeScheduler.Refresh;
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end;
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end;
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function TfrmRentCar.Storage: TcxSchedulerStorage;
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begin
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Result := ResourceDemoMainForm.Storage;
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end;
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function TfrmRentCar.TimeToDateTime(ATime: TDateTime): TDateTime;
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var
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H, M, S, MS: Word;
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begin
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DecodeTime(ATime, H, M, S, MS);
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Result := H * 60 + M;
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end;
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procedure TfrmRentCar.FormCreate(Sender: TObject);
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begin
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FPeriods := TcxSchedulerDateList.Create;
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FEventsList := TcxSchedulerFilteredEventList.Create;
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FDays := TcxSchedulerDateList.Create;
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FDayEvents := TcxSchedulerEventList.Create;
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end;
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procedure TfrmRentCar.FormDestroy(Sender: TObject);
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begin
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FreeAndNil(FEventsList);
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FreeAndNil(FDays);
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FreeAndNil(FDayEvents);
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FreeAndNil(FPeriods);
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end;
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procedure TfrmRentCar.FormShow(Sender: TObject);
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var
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AScheduler: TcxCustomScheduler;
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begin
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Storage.FullRefresh;
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AScheduler := ResourceDemoMainForm.Scheduler;
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if AScheduler.SelResource = nil then
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SetIndex(lvCars, 0)
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else
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SetIndex(lvCars, AScheduler.SelResource.ID);
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ProcessSelectItem(GetIndex(lvCars));
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DateNavigator.Date := DateOf(AScheduler.SelStart);
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ProcessSelectItem(GetIndex(lvCars));
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TimeScheduler.SelectDays(DateNavigator.Date, DateNavigator.Date, True);
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TimeScheduler.SelectTime(AScheduler.SelStart, AScheduler.SelFinish, nil);
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end;
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procedure TfrmRentCar.TimeSchedulerCustomDrawContent(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxSchedulerContentCellViewInfo;
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var ADone: Boolean);
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var
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I: Integer;
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const
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scxBusyTime = 'Busy time';
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begin
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for I := 0 to FDayEvents.Count - 1 do
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if Intersect(AViewInfo.TimeStart, AViewInfo.TimeFinish,
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FDayEvents[I].Start, FDayEvents[I].Finish) then
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begin
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ACanvas.Brush.Color := clBtnShadow;
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ACanvas.FillRect(AViewInfo.Bounds);
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ACanvas.Font.Color := clBtnText;
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ACanvas.DrawTexT(scxBusyTime, AViewInfo.Bounds, cxAlignCenter);
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AViewInfo.Transparent := True;
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end;
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end;
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procedure TfrmRentCar.DateNavigatorSelectionChanged(Sender: TObject;
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const AStart, AFinish: TDateTime);
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var
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I: Integer;
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begin
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FDayEvents.Clear;
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for I := 0 to FEventsList.Count - 1 do
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if FEventsList[I].IsDayEvent(AStart) then
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FDayEvents.Add(FEventsList[I]);
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FDayEvents.Sort(CompareEvents);
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FillTimeList;
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TimeScheduler.SelectDays(AStart, AFinish, True);
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lbxPeriod.ItemIndex := 0;
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lbxPeriodClick(lbxPeriod);
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end;
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procedure TfrmRentCar.DateNavigatorCustomDrawDayNumber(Sender: TObject;
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ACanvas: TcxCanvas;
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AViewInfo: TcxSchedulerDateNavigatorDayNumberViewInfo;
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var ADone: Boolean);
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begin
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if FDays.IndexOf(AViewInfo.Date) <> -1 then
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ACanvas.Font := cxBoldStyle.Font;
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end;
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procedure TfrmRentCar.DateNavigatorCustomDrawContent(Sender: TObject;
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ACanvas: TcxCanvas; AViewInfo: TcxSchedulerDateNavigatorMonthContentViewInfo;
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var ADone: Boolean);
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begin
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ResourceDemoMainForm.DrawDateNavigatorContent(ACanvas, AViewInfo, ADone);
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end;
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procedure TfrmRentCar.lvCarsSelectItem(Sender: TObject; Item: TListItem;
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Selected: Boolean);
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begin
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if not Selected then Exit;
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ProcessSelectItem(Item.Index);
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end;
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procedure TfrmRentCar.lbxPeriodClick(Sender: TObject);
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var
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AIndex: Integer;
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begin
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AIndex := lbxPeriod.ItemIndex;
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if AIndex <> -1 then
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begin
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TimeScheduler.SelectTime(DateTimeToTime(FPeriods[AIndex * 2]),
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DateTimeToTime(FPeriods[AIndex * 2 + 1]) + HourToTime, nil);
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end;
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end;
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procedure TfrmRentCar.TimeSchedulerKeyDown(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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var
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AControl: TWinControl;
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begin
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if Key <> VK_TAB then Exit;
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AControl := FindNextControl(TimeScheduler, not (ssCtrl in Shift), True, True);
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if AControl <> nil then
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AControl.SetFocus;
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end;
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procedure TfrmRentCar.btnRentClick(Sender: TObject);
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begin
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RentCar;
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end;
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end.
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