qiplotchannelcustom.pas

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{*******************************************************}
{                                                       }
{       TiPlotChannelCustom                             }
{                                                       }
{       Copyright (c) 1997,2003 Iocomp Software         }
{                                                       }
{*******************************************************}
{$I iInclude.inc}

{$ifdef iVCL}unit  iPlotChannelCustom;{$endif}
{$ifdef iCLX}unit QiPlotChannelCustom;{$endif}

interface

uses
  {$I iIncludeUses.inc}

  {$IFDEF iVCL} iPlotDataCustomList,  iPlotDataFullList,  iPlotDataNullList,  iPlotDataCompactList,  iPlotDataCompactIntervalList,{$ENDIF}
  {$IFDEF iCLX}QiPlotDataCustomList, QiPlotDataFullList, QiPlotDataNullList, QiPlotDataCompactList, QiPlotDataCompactIntervalList,{$ENDIF}


  {$IFDEF iVCL} Menus,  iTypes,  iGPFunctions,  iClasses,  iPlotObjects,  iPlotAxis, iOPCItem;{$ENDIF}
  {$IFDEF iCLX}QMenus, QiTypes, QiGPFunctions, QiClasses, QiPlotObjects, QiPlotAxis;{$ENDIF}

type
  TiPlotDataCursorStyle  = (ipcsValueXY, ipcsValueX, ipcsValueY, ipcsDeltaX, ipcsDeltaY, ipcsInverseDeltaX);
  TiPlotDataPointStatus  = (ipdpsValid, ipdpsNull, ipdpsEmpty);
  TiPlotDataStyle        = (ipdsStandard, ipdsCompact, ipdsCompactInterval, ipdsFullFeature);

  TiPlotChannelCustom = class(TiPlotManagerObject)
  private
    FXAxis                       : TiPlotXAxis;
    FYAxis                       : TiPlotYAxis;

    {$IFDEF iVCL}FOPCItemManager : TiOPCItemManager;{$endif}

    FSelectDataIndex             : Integer;
    FSelectHitTestRect           : TRect;
    FSelectMouseDown             : Boolean;
    FSelectMouseDownIndex        : Integer;
    FSelectDownRect              : TRect;

    FStartIndex                  : Integer;
    FStopIndex                   : Integer;
    FDataList                    : TiPlotDataCustomList;

    FTitleText                   : String;
    FYAxisName                   : String;
    FXAxisName                   : String;
    FXAxisTrackingEnabled        : Boolean;
    FYAxisTrackingEnabled        : Boolean;

    FLoggingActive               : Boolean;
    FLogBufferCount              : Integer;

    FMarkersAllowIndividual      : Boolean;
    FMarkersTurnOffLimit         : Integer;

    FLegendRect                  : TRect;

    FVisibleInLegend             : Boolean;
    FMarkersBrushUseChannelColor : Boolean;
    FMarkersPenUseChannelColor   : Boolean;
    FTraceVisible                : Boolean;
    FLogBufferSize               : Integer;
    FLogFileName                 : String;

    FTag                         : OleVariant;

    FRunningCount                : Integer;

    FRunningXMin                 : Double;
    FRunningXMax                 : Double;
    FRunningXMean                : Double;
    FRunningXTotal               : Extended;

    FRunningYMin                 : Double;
    FRunningYMax                 : Double;
    FRunningYMean                : Double;
    FRunningYTotal               : Extended;

    FDataStyle                   : TiPlotDataStyle;
    FMarkersFont                 : TFont;

    FLoadingSeparator            : Char;
  protected
    FDataCursorXText             : String;
    FDataCursorYText             : String;
    FDataCursorYValue            : Double;
    FDataCursorXValue            : Double;
    FDataCursorStatus            : TiPlotDataPointStatus;

    procedure SetTitleText                  (const Value: String);
    procedure SetColor                      (const Value: TColor);
    procedure SetCount                      (const Value: Integer);
    procedure SetLegendRect                 (const Value: TRect);
    procedure SetXAxisName                  (const Value: String);
    procedure SetYAxisName                  (const Value: String);
    procedure SetMarkersVisible             (const Value: Boolean);
    procedure SetMarkersBrushColor          (const Value: TColor);
    procedure SetMarkersBrushStyle          (const Value: TBrushStyle);
    procedure SetMarkersPenColor            (const Value: TColor);
    procedure SetMarkersPenStyle            (const Value: TPenStyle);
    procedure SetMarkersPenWidth            (const Value: Integer);
    procedure SetMarkersSize                (const Value: Integer);
    procedure SetMarkersStyle               (const Value: TiPlotMarkerStyle);
    procedure SetMarkersFont                (const Value: TFont);
    procedure SetXAxisTrackingEnabled       (const Value: Boolean);
    procedure SetYAxisTrackingEnabled       (const Value: Boolean);
    procedure SetVisibleInLegend            (const Value: Boolean);
    procedure SetMarkersBrushUseChannelColor(const Value: Boolean);
    procedure SetMarkersPenUseChannelColor  (const Value: Boolean);
    procedure SetTraceVisible               (const Value: Boolean);
    procedure SetTraceLineStyle             (const Value: TiPlotLineStyle);
    procedure SetTraceLineWidth             (const Value: Integer);
    procedure SetLogBufferSize              (const Value: Integer);
    procedure SetLogFileName                (const Value: String);
    procedure SetMarkersAllowIndividual     (const Value: Boolean);
    procedure SetMarkersTurnOffLimit        (const Value: Integer);
    procedure SetDataStyle                  (const Value: TiPlotDataStyle);

    function GetTraceLineWidth   : Integer;
    function GetColor            : TColor;
    function GetTraceLineStyle   : TiPlotLineStyle;
    function GetMarkersVisible   : Boolean;
    function GetMarkersSize      : Integer;
    function GetMarkersStyle     : TiPlotMarkerStyle;
    function GetMarkersPenColor  : TColor;
    function GetMarkersBrushColor: TColor;
    function GetMarkersBrushStyle: TBrushStyle;
    function GetMarkersPenStyle  : TPenStyle;
    function GetMarkersPenWidth  : Integer;
    function GetCapacity         : Integer;
    function GetMemoryUsed       : Integer;

    function GetXAxis            : TiPlotXAxis;
    function GetYAxis            : TiPlotYAxis;

    function  GetDataMarkerBrushColor(const Index: Integer): TColor;
    function  GetDataMarkerBrushStyle(const Index: Integer): TBrushStyle;
    function  GetDataMarkerPenColor  (const Index: Integer): TColor;
    function  GetDataMarkerPenStyle  (const Index: Integer): TPenStyle;
    function  GetDataMarkerPenWidth  (const Index: Integer): Integer;
    function  GetDataMarkerSize      (const Index: Integer): Integer;
    function  GetDataMarkerCharacter (const Index: Integer): Char;
    function  GetDataTraceLineColor  (const Index: Integer): TColor;
    function  GetDataTraceLineStyle  (const Index: Integer): TiPlotLineStyle;
    function  GetDataTraceLineWidth  (const Index: Integer): Integer;

    procedure SetDataMarkerBrushColor(const Index: Integer; const Value: TColor);
    procedure SetDataMarkerBrushStyle(const Index: Integer; const Value: TBrushStyle);
    procedure SetDataMarkerPenColor  (const Index: Integer; const Value: TColor);
    procedure SetDataMarkerPenStyle  (const Index: Integer; const Value: TPenStyle);
    procedure SetDataMarkerPenWidth  (const Index, Value: Integer);
    procedure SetDataMarkerSize      (const Index, Value: Integer);
    procedure SetDataMarkerCharacter (const Index: Integer; const Value: Char);
    procedure SetDataTraceLineColor  (const Index: Integer; const Value: TColor);
    procedure SetDataTraceLineStyle  (const Index: Integer; const Value: TiPlotLineStyle);
    procedure SetDataTraceLineWidth  (const Index, Value: Integer);

   {$IFDEF iVCL}
    procedure SetOPCGroupName   (const Value: String);
    procedure SetOPCComputerName(const Value: String);
    procedure SetOPCItemName    (const Value: String);
    procedure SetOPCServerName  (const Value: String);
    procedure SetOPCUpdateRate  (const Value: Integer);
    procedure SetOPCAutoConnect (const Value: Boolean);

    function GetOPCGroupName    : String;
    function GetOPCComputerName : String;
    function GetOPCItemName     : String;
    function GetOPCServerName   : String;
    function GetOPCUpdateRate   : Integer;
    function GetOPCAutoConnect  : Boolean;
    function GetOPCActive       : Boolean;
    function GetOPCQualityGood  : Boolean;
    {$endif}

    function GetDataPointSize: Integer;
    function GetMaxDataPoints: Integer;

    function GetDataMarkerShowing(const Index: Integer): Boolean;

    procedure SetRingBufferSize(const Value: Integer);
    function  GetRingBufferSize: Integer;

    procedure GetViewIntersectPoint(ValueXInView, ValueYInView: Double; var ValueXOutOfView: Double; var ValueYOutOfView: Double);
    function  GetNewY(DataX1, DataY1, DataX2, DataY2, NewX: Double): Double;
    function  GetNewX(DataX1, DataY1, DataX2, DataY2, NewY: Double): Double;

    function  GetDataEmpty(const Index: Integer): Boolean;
    procedure SetDataEmpty(const Index: Integer; const Value: Boolean);

    procedure GetPointPixels(ValueX, ValueY : Double; var PixelsX : Integer; var PixelsY : Integer);
    function  AxesValid : Boolean;

    function  GetCount                                : Integer;
    function  GetDataX          (const Index: Integer): Double;
    function  GetDataY          (const Index: Integer): Double;
    function  GetDataNull       (const Index: Integer): Boolean;
    function  GetDataMarkerShow (const Index: Integer): Boolean;
    function  GetDataMarkerStyle(const Index: Integer): TiPlotMarkerStyle;

    procedure SetDataX           (const Index: Integer; const Value: Double);
    procedure SetDataY           (const Index: Integer; const Value: Double);
    procedure SetDataNull        (const Index: Integer; const Value: Boolean);
    procedure SetDataMarkerShow  (const Index: Integer; const Value: Boolean);
    procedure SetDataMarkerStyle (const Index: Integer; const Value: TiPlotMarkerStyle);

    function GetDataXDrawMax(Index: Integer): Double;
    function GetDataXDrawMin(Index: Integer): Double;
    function GetDataYDrawMax(Index: Integer): Double;
    function GetDataYDrawMin(Index: Integer): Double;

    procedure CalcStartXIndex; virtual; abstract;
    procedure CalcStopXIndex;  virtual; abstract;

    function  GetVisibleMaxX : Double; virtual; abstract;
    function  GetVisibleMinX : Double; virtual; abstract;
    function  GetVisibleMaxY : Double; virtual; abstract;
    function  GetVisibleMinY : Double; virtual; abstract;

    procedure DataCursorUpate(Sender: TObject); virtual; abstract;

    function  GetXValueFromMousePoint(X, Y: Integer): Double;

    {$IFDEF iVCL}
    procedure OPCNewData(Sender: TObject); virtual;
    {$endif}
    procedure DrawConnectPoints(Canvas: TCanvas; XYAxisReverse: Boolean); virtual;
    procedure DrawLine         (Canvas: TCanvas; XYAxisReverse: Boolean; X1, Y1, X2, Y2: Double; YRef: TiPlotUnitReferenceStyle);
    procedure DrawQuadPolygon  (Canvas: TCanvas; XYAxisReverse: Boolean; Point1, Point2, Point3, Point4: TPointDouble);
    procedure DrawMarkers      (Canvas: TCanvas; XYAxisReverse: Boolean); virtual;
    procedure DrawMarker       (Canvas: TCanvas; Index: Integer; CenterPoint : TPoint);

    procedure WriteLog;

    procedure DoMouseLeft(MouseData: TiPlotMouseData);                                                          override;
    procedure DoMouseUp  (MouseData: TiPlotMouseData);                                                          override;

    function  GetMousePointer(APoint: TPoint): TCursor;                                                         override;

    function  iMouseHitTest(MouseData: TiPlotMouseData): Boolean;                                               override;

    procedure Loaded;                                                                                           override;

    procedure NotificationRemove  (Sender: TObject); override;
    procedure NotificationRename  (Sender: TObject); override;
    procedure NotificationSetFocus(Sender: TObject); override;

    procedure AddMenuItems(PopupMenu: TPopUpMenu);                                                              override;

    property DataList          : TiPlotDataCustomList   read FDataList;
    property LegendRect        : TRect                  read FLegendRect              write SetLegendRect;
    property StartIndex        : Integer                read FStartIndex              write FStartIndex;
    property StopIndex         : Integer                read FStopIndex               write FStopIndex;
  public
    constructor Create(AOwner: TObject; AOnChange, AOnInsert, AOnRemove, AOnRename: TNotifyEvent);          override;
    destructor  Destroy;                                                                                        override;

    function AddXY         (const X, Y :Double): Integer;

    procedure AddXYArrays(XData, YData: Variant);
    procedure AddXYArray(Data: Variant);

    procedure Clear;