<< Click here to display Table of Contents >> Navigation: Code Documentation > RSVML > RSGdiPlusCtrls > Classes:

TRSGPEllipse Class

Contents

Comments (0)

TRSGPEllipse defines 2D ellipses.

The following TEllipse properties define the ellipse shape and position:

• Initially the ellipse is inscribed into the bounding rectangle ShapeRect of the TRSGPEllipse object.

• Then the rotation axis RotationCenter is moved along the local coordinate axes proportionally to the Scale factors.

• Then this ellipse is rotated around the obtained pivot on the RotationAngle angle.

Note
Scaling not only scales the shape of an object proportionally to the scaling factors, but also changes the Stroke.Thickness of the contour proportionally to the scaling factor for each axis.

TRSGPEllipse draws the contour and fills the background with the

Paint method.Paint draws the contour and fills the background using the drawing pen and brush with the properties, color, and opacity defined by the Stroke and Fill properties of the TRSGPEllipse object.

Namespace: RSGdiPlusCtrls

	Name	Description
	Create(TComponent)	Initializes a new instance of the TRSGPShape class. (Overrides RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.Create(TComponent).)

Top

	Name	Description
	AbsoluteMatrix	Specifies the absolute transformation matrix of the control. AbsoluteMatrix is calculated using Matrix and AbsoluteMatrix of its parent (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	Align	Represents property Align.
	Anchors	Represents property Anchors.
	Canvas	Represents property Canvas. (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	ClipChildren	Represents property ClipChildren.
	Constraints	Represents property Constraints.
	Cursor	Represents property Cursor.
	DragCursor	Represents property DragCursor.
	DragKind	Represents property DragKind.
	DragMode	Represents property DragMode.
	Fill	Represents property Fill.
	InterceptMouse	Determines whether mouse clicks should be detected for the control (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	Matrix	Specifies the local transformation matrix of the control (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	OnClick	Represents property OnClick.
	OnContextPopup	Represents property OnContextPopup.
	OnDblClick	Represents property OnDblClick.
	OnDragDrop	Represents property OnDragDrop.
	OnDragOver	Represents property OnDragOver.
	OnEndDock	Represents property OnEndDock.
	OnEndDrag	Represents property OnEndDrag.
	OnGesture	Represents property OnGesture.
	OnMouseActivate	Represents property OnMouseActivate.
	OnMouseDown	Represents property OnMouseDown.
	OnMouseEnter	Represents property OnMouseEnter.
	OnMouseLeave	Represents property OnMouseLeave.
	OnMouseMove	Represents property OnMouseMove.
	OnMouseUp	Represents property OnMouseUp.
	OnPaint	Represents property OnPaint.
	OnPainting	Represents property OnPainting.
	OnStartDock	Represents property OnStartDock.
	OnStartDrag	Represents property OnStartDrag.
	Opacity	Represents property Opacity.
	ParentShowHint	Represents property ParentShowHint.
	PopupMenu	Represents property PopupMenu.
	ShapeRect	Returns the rectangle for drawing the shape. The coordinates of the upper-left corner of the rectangle are (0,0), and the coordinates of the lower-right corner are (Width, Height). (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	ShowHint	Represents property ShowHint.
	Stroke	Represents property Stroke.
	Touch	Represents property Touch.
	Transform	Represents property Transform.
	Visible	Represents property Visible.

Top

	Name	Description
	CreateGdiPCanvas	Creates a GDI+ canvas for the control. The calling routine is responsible for freeing the GDI+ canvas (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	DoPaint	Override this method to paint the control (Overrides RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.DoPaint.)
	DoPainted	Occurs just after painting. Calls the OnPaint event (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	DoPainting	Occurs just before painting. Calls the OnPainting event (Inherited from RSGdiPlusCtrls.TRSCustomTransparentGraphicControl.)
	GetAbsoluteMatrix	Returns the absolute transformation matrix of the control. AbsoluteMatrix is calculated using Matrix and AbsoluteMatrix of its parent (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	GetMatrix	Returns the local transformation matrix of the control (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	GetOpacity	Returns the control opacity. (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	GetShapeRectForRot(TObject,TRSRect)	Represents method GetShapeRectForRot(TObject,TRSRect). (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	ObjectChanged(TObject)	Represents method ObjectChanged(TObject). (Inherited from RSGdiPlusCtrls.TRSGPShape.)
	Paint(TRSGPCanvas,TRSGPMatrix,Single)	Represents method Paint(TRSGPCanvas,TRSGPMatrix,Single). (Overrides RSGdiPlusCtrls.TRSGPShape.Paint(TRSGPCanvas,TRSGPMatrix,Single).)
	PointInObject(Integer,Integer)	Overloaded. Checks whether the point, specified by the absolute coordinates, belongs to the control area. PointInObject returns True if the specified point belongs to the control area, and False otherwise. The X and Y are the absolute coordinates (relative to the main form) of the point to be checked. The points of the control boundary specified by BoundsRect belong to the control and PointInObject returns True for them.
	PointInObject(Single,Single)	Checks whether the point, specified by the absolute coordinates, belongs to the control area. PointInObject returns True if the specified point belongs to the control area, and False otherwise. The X and Y are the absolute coordinates (relative to the main form) of the point to be checked. The points of the control boundary specified by BoundsRect belong to the control and PointInObject returns True for them.
	SetOpacity(Single)	Sets the control opacity. Set Opacity to customize the transparency of the current control. Opacity takes values between 0 and 1. If Opacity is 1, the control is completely opaque; if it is 0, the control is completely transparent. The values over 1 are treated as 1, and the ones under 0 are treated as 0. Opacity applies to the control's children.

Top

Comments (0)

TRSGPEllipse Class

Reference