procedure CalculateSchedulerNavigationButtonRects(AIsNextButton: Boolean;
ACollapsed: Boolean; APrevButtonTextSize: TSize; ANextButtonTextSize: TSize;
var ABounds: TRect; out ATextRect: TRect; out AArrowRect: TRect {$IFDEF VER16_2_2}; const AIsVertical: boolean = True{$ENDIF}); override;
procedure DrawSchedulerNavigationButton(ACanvas: TcxCanvas;
const ARect: TRect; AIsNextButton: Boolean; AState: TcxButtonState;
const AText: string; const ATextRect: TRect; const AArrowRect: TRect {$IFDEF VER16_2_2}; const AIsVertical: boolean = True{$ENDIF}); override;
procedure DrawSchedulerNavigationButtonArrow(ACanvas: TcxCanvas; const ARect: TRect; AIsNextButton: Boolean; AColor: TColor {$IFDEF VER16_2_2}; const AIsVertical: boolean = True{$ENDIF}); override;
procedure SchedulerNavigationButtonSizes(AIsNextButton: Boolean;
var ABorders: TRect; var AArrowSize: TSize; var AHasTextArea: Boolean {$IFDEF VER16_2_2}; const AIsVertical: boolean = True{$ENDIF}); override;