GH_Painter

References
public class GH_Painter
This class performs most of the drawing operations required for Grasshopper Canvas controls.

Constructors

GH_Painter

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public GH_Painter(GH_Canvas owner)
Constructor.
Parameters:
owner (GH_Canvas)Canvas that owns this painter object.

Methods

ConnectionPath

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public static GraphicsPath ConnectionPath(PointF pointA, PointF pointB, GH_WireDirection directionA, GH_WireDirection directionB)
Parameters:
pointA (PointF)
pointB (PointF)
directionA (GH_WireDirection)
directionB (GH_WireDirection)

ConnectionPathBezier

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public static BezierF ConnectionPathBezier(PointF source, PointF target)
Parameters:
source (PointF)
target (PointF)

ConnectionVisible

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public bool ConnectionVisible(PointF a, PointF b)
Test whether a wire ought to be drawn at all.
Parameters:
a (PointF)Start point of wire.
b (PointF)End point of wire.
Returns: True if the wire is visible and ought to be drawn.

DetermineWireType

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public static GH_WireType DetermineWireType(IGH_Structure target)
Utility method for determining wire display types.
Parameters:
target (IGH_Structure)Pointer to transfer data.

DrawBackground

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public void DrawBackground(GH_Viewport viewport)
Parameters:
viewport (GH_Viewport)

DrawConnection

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public void DrawConnection(PointF pointA, PointF pointB, GH_WireDirection directionA, GH_WireDirection directionB, bool selectedA, bool selectedB, GH_WireType type)
Parameters:
pointA (PointF)
pointB (PointF)
directionA (GH_WireDirection)
directionB (GH_WireDirection)
selectedA (bool)
selectedB (bool)
type (GH_WireType)

DrawMiddleGround

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public void DrawMiddleGround(GH_Document doc, GH_CanvasChannel channel)
Parameters:
doc (GH_Document)
channel (GH_CanvasChannel)

DrawNoDocumentMessage

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public void DrawNoDocumentMessage()

DrawNULLBuffer

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public void DrawNULLBuffer()

DrawPivots

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public void DrawPivots(GH_Document doc)
Parameters:
doc (GH_Document)

DrawStateFlags

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public void DrawStateFlags(GH_Document doc)
Parameters:
doc (GH_Document)

GenerateWirePen_Fill

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public Brush GenerateWirePen_Fill(PointF a, PointF b, bool asel, bool bsel, bool empty)
Parameters:
a (PointF)
b (PointF)
asel (bool)
bsel (bool)
empty (bool)