' Classes/System/Drawing/RectangleF.ab

#ifndef __SYSTEM_DRAWING_RECTANGLEF_AB__
#define __SYSTEM_DRAWING_RECTANGLEF_AB__

#include <Classes/System/Math.ab>
#include <Classes/System/Drawing/PointF.ab>
#include <Classes/System/Drawing/SizeF.ab>

Class RectangleF
Public
	Sub RectangleF()
		x = 0
		y = 0
		width = 0
		height = 0
	End Sub

	Sub RectangleF(x As Single, y As Single, width As Single, height As Single)
		x = x
		y = y
		width = width
		height = height
	End Sub

	Sub RectangleF(location As PointF, size As SizeF)
		x = location.X
		y = lccation.Y
		width = size.Height
		hegiht = size.Height
	End Sub

	Sub RectangleF(ByRef rc As RectangleF)
		x = rc.x
		y = rc.y
		widht = rc.width
		height = rc.height
	End Sub

	Function Location() As PointF
		Dim pt As PointF(x, y)
		Return pt
	End Function

	Sub Location(ByRef point As PointF)
		x = point.X
		y = point.Y
	End Sub

	Function Size() As SizeF
		Dim size As SizeF(width, height)
	End Function

	Sub Size(ByRef size As SizeF)
		width = size.Width
		height = size.Height
	End Sub

	Function X() As Single
		Return x
	End Function

	Sub X(value As Single)
		x = value
	End Sub

	Function Y() As Single
		Return y
	End Function

	Sub Y(value As Single)
		y = value
	End Sub

	Function Width() As Single
		Return width
	End Function

	Sub Width(value As Single)
		width = value
	End Sub

	Function Height() As Single
		Return height
	End Function

	Sub Height(value As Single)
		height = value
	End Sub

	Function Left() As Single
		Return X
	End Function

	Function Top() As Single
		Return Y
	End Function

	Function Right() As Single
		Return X + Width
	End Function

	Function Bottom() As Single
		Return Y + Height
	End Function

	Function IsEmpty() As BOOL
		If Width <= Single_EPSILON Or Height <= Single_EPSILON Then
			IsEmptyArea = _System_TRUE
		Else
			IsEmptyArea = _System_FALSE
		End If
	End Function

	Function Operator = (ByRef rc As RectangleF)
		With rc
			x = .x
			y = .y
			width = .width
			height = .height
		End With
	End Function

	Function Operator == (ByRef rc As RectangleF)
		Return Equals(rc)
	End Function

	Function Operator <> (ByRef rc As RectangleF)
		Return Not Equals(rc)
	End Function

	Function Equals(ByRef rc As RectangleF) As BOOL
		If X = rc.X And Y = rc.Y And Width = rc.Width And Height = rc.Height Then
			Equals = _System_TRUE
		Else
			Equals = _System_FALSE
		End If
	End Function

	Static Function FromLTRB(l As Single, t As Single, r As Single, b As Single) As RectangleF
		Dim r As RectangleF(left, top, right - left, bottom - top)
		return r
	End Function

	Function Contains(x As Single, y As Single) As BOOL
		If x >= X And x < X + Width And y >= Y And y < Y + Height Then
			Contains = _System_TRUE
		Else
			Contains = _System_FALSE
		End If
	End Function

	Function Contains(ByRef pt As PointF) As BOOL
		ContainsPTF = Contains(pt.X, pt.Y)
	End Function

	Function Contains(ByRef rc As RectangleF) As BOOL
		If X <= rc.X && rc.Right <= Right && Y <= rc.Y && rc.Bottom <= Bottom Then
			ContainsRCF = _System_TRUE
		Else
			ContainsRCF = _System_FALSE
		End If
	End Function

	Sub Inflate(dx As Single, dy As Single)
		X -= dx
		Y -= dy
		Width = dx + dx
		Height = dy + dy
	End Sub

	Sub Inflate(sz As SizeF)
		Inflate(sz.Width, sz.Height)
	End Sub

	Sub Inflate(pt As PointF)
		Inflate(pt.X, pt.Y)
	End Sub

	Static Function Inflate(ByRef rc As RectangleF, x As Single, y As Single) As RectangleF
		Inflate = rc
		Inflate.Inflate(x, y)
	End Function

	Function Intersect(ByRef rect As RectangleF) As BOOL
		Intersect = Intersect(This, This, rect)
	End Function

	Static Function Intersect(ByRef a As RectangleF, ByRef b As RectangleF) As RectangleF
		Dim right As Single, bottom As Single, left As Single, top As Single
		right = Math.Min(a.Right, b.Right)
		bottom = Math.Min(a.Bottom, b.Bottom)
		left = Math.Min(a.Left, b.Left)
		top = Math.Min(a.Top, b.Top)
		Return FromLTRB(left, top, right, bottom)
	End Function

	Function IntersectsWith(ByRef rc As RectangleF) As BOOL
		If Left < rc.Right And _
			Top < rc.Bottom And _
			Right > rc.Left And _
			Bottom > rc.Top Then
			IntersectsWith = _System_TRUE
		Else
			IntersectsWith = _System_FALSE
		End If
	End Function

	Static Function Union(ByRef a As RectangleF, ByRef b As RectangleF) As RectangleF
		Dim right As Single, bottom As Single, left As Single, top As Single
		right = Math.Max(a.GetRight(), b.GetRight())
		bottom = Math.Max(a.GetBottom(), b.GetBottom())
		left = Math.Max(a.GetLeft(), b.GetLeft())
		top = Math.Max(a.GetTop(), b.GetTop())
		Return FromLTRB(left, top, right, bottom)
	End Function

	Sub Offset(pt As PointF)
		Offset(pt.X, pt.Y)
	End Sub

	Sub Offset(dx As Single, dy As Single)
		X += dx
		Y += dy
	End Sub

Public
	x As Single
	y As Single
	width As Single
	height As Single
End Class

#endif '__SYSTEM_DRAWING_RECTFANGLE_AB__