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TRSGPRectangle Class

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TRSGPRectangle defines 2D rectangles with customized corners.

The CornerType , XRadius, and YRadius properties define how to customize shapes of rectangle corners. Corners specifies which corners to be customized. Notice that, if Corners is an empty set or any of the XRadius or YRadius properties is zero, then no corner shape customization is used.

The rectangle size and position are defined by the following properties of the TRSGPRectangle object:

• The shape rectangle ShapeRect defines the initial size and position of the rectangle.

• You can use the rotation axis RotationCenter and rotation angle RotationAngle of the TRectangle object to rotate and move the rectangle.

• You can use the scaling factors of the TRectangle object to proportionally scale rectangle coordinates along local coordinate axes. Scaling moves the rectangle and changes its size.
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.

Namespace: RSGdiPlusCtrls

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.

Corners

Specifies shapes of which corners in the TRSGPRectangle rectangle object are customized according to the CornerType, XRadius, and YRadius properties.

By default, all four corners are customized.

Corners can contain a set of constants defined in the TRSCorner type: crTopLeft, crTopRight, crBottomLeft, and crBottomRight. Use the AllCorners constant to select all corners.

If Corners is an empty set or any of the XRadius and YRadius properties is zero, then no corner shape customization is used.

CornerType

Specifies the type of the corner shape's customization in the rectangle. Values of CornerType are defined in TRSGPCornerType.

CornerType applies to corners specified in the Corners set. XRadius and YRadius specify the distance from a corner to the start point of the corner shape customization, on the horizontal and vertical sides.

Note
If Corners is an empty set or any of the XRadius and YRadius properties is zero, then no corner shape customization is used

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.

Sides

Specifies which sides of the TRSGPRectangle rectangle to display.

A side is a rectangle boundary between two adjacent corners or end points of corner customizations. End points of corner customizations are defined by XRadius and YRadius. A corner customization applies to corners included into the Corners set.

By default, all sides of the rectangle are displayed.

Sides can contain a set of constants defined in TRSSide: sdTop, sdLeft, sdBottom, and sdRight. Use the AllSides constant to select all sides.

If Sides is empty, then no side is displayed.

Stroke

Represents property Stroke.

Touch

Represents property Touch.

Transform

Represents property Transform.

Visible

Represents property Visible.

XRadius

Specifies the distance from a corner to the start point of the corner shape customization, on the horizontal sides of TRSGPRectangle.

During design time, the maximum possible value of XRadius is limited by the half of the smallest side.

If XRadius=0, then no corner shape customization is used.

YRadius

Specifies the distance from a corner to the start point of the corner shape customization, on the vertical sides of TRSGPRectangle.

During design time, the maximum possible value of YRadius is limited by the half of the smallest side.

If YRadius=0, then no corner shape customization is used.

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	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)	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.
	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.

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TRSGPRectangle Class

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