GrapeCity.Documents.Pdf.GcPdfGraphics

GcPdfGraphics Class

Represents a graphics object that can be used to draw on a PDF page.

The origin (0,0) is in the top left corner of the page, the axis go right and down.

All coordinates and sizes are expressed in printer points (1/72 of an inch) by default. This can be changed using the Resolution property.

Inheritance

object

GcGraphics

GcPdfGraphics

Implements

IDisposable

Namespace: GrapeCity.Documents.Pdf

Assembly: DS.Documents.Pdf.dll

Syntax

public class GcPdfGraphics : GcGraphics, IDisposable

Public Class GcPdfGraphics
    Inherits GcGraphics
    Implements IDisposable

Properties

Name	Description
CanvasSize	Gets the size of the drawing area.
Doc	Gets the GcPdfDocument object owning this graphics.
Features	For internal use. Gets the features supported by this graphics.
ImageCanBeDisposedAfterDrawing	For internal use.
Resolution	Gets the resolution of the current graphics.
SoftMask	Gets or sets the SoftMaskBase object defining current Soft Mask.
TextLayoutHandler	Gets or sets an ITextLayoutHandler object which will receive notifications from the GcPdfGraphics when TextLayout is rendered.
Transform	Gets or sets the current transformation matrix. The default is Identity matrix.

Methods

Name	Description
BeginLayer(OptionalContentGroup)	Begins rendering to the specified `layer`. That layer should already exist in the Groups collection of the current document's OptionalContent. The EndLayer() method must be called to end rendering to the specified layer.
BeginLayer(OptionalContentMembership)	Begins rendering to the specified `layer`. The EndLayer() method must be called to end rendering to the specified layer.
BeginLayer(string)	Begins rendering to a layer specified by `layerName`. That name should match the Name of an existing OptionalContentGroup in the Groups collection of the current document's OptionalContent. The EndLayer() method must be called to end rendering to the specified layer.
BeginMarkedContent(TagBase)	Begins Marked Content. Writes (BMC or BDC) operator to content stream, each call of BeginMarkedContent(string) should be enclosed with EndMarkedContent().
BeginMarkedContent(string)	Begins Marked Content. Writes (BMC or BDC) operator to content stream, each call of BeginMarkedContent(string) should be enclosed with EndMarkedContent().
Composite(IGcTransparencyGroup, Rectangle, Point, float?)	For internal use. Composites this GcGraphics and the GrapeCity.Documents.Drawing.IGcTransparencyGroup created with the CreateTransparencyGroup(Rectangle, bool, bool, bool) method.
CreateTransparencyGroup(Rectangle, bool, bool, bool)	For internal use. Creates a GrapeCity.Documents.Drawing.IGcTransparencyGroup compatible with this graphics. This group can be used later for: Compose with graphics using the Composite(IGcTransparencyGroup, Rectangle, Point, float?) method Create a transparency mask from this group using the CreateTransparencyMask(IGcTransparencyGroup, TransparencyMaskType, Rectangle, IGcTransparencyMaskFilter) method Note! If the transparency group supports IDisposable interface it will be automatically disposed after usage.
CreateTransparencyMask(IGcTransparencyGroup, TransparencyMaskType, Rectangle, IGcTransparencyMaskFilter)	For internal use. Creates a transparency mask from a GrapeCity.Documents.Drawing.IGcTransparencyGroup, this mask can be specified for this graphics using SetTransparencyMask(object) method. Note! If the transparency mask supports IDisposable interface it will be automatically disposed after usage.
Dispose(bool)	Disposes the current graphics.
DrawForm(FormXObject, RectangleF, RectangleF?, ImageAlign)	Draws a FormXObject using specified bounds and image alignment.
DrawForm(FormXObject, RectangleF, RectangleF?, ImageAlign, out RectangleF[])	Draws a FormXObject using specified bounds and image alignment. The output parameter `imageBounds` receives the actual bounds of the drawn object(s).
DrawGlyphs(Font, ushort[], float[], string[], int, Color, Matrix3x2)	For internal use only.
DrawVertGlyphs(Font, ushort[], float[], float[], float[], string[], int, Color, Matrix3x2)	For internal use only.
EndLayer()	Ends rendering to the layer specified by a previous call to BeginLayer(string), BeginLayer(OptionalContentGroup) or BeginLayer(OptionalContentMembership).
EndMarkedContent()	Ends Marked Content. Writes EMC operator to content stream.
GetBlendMode()	For internal use. Returns the current blend mode.
InternalCreateClipRegion(IPath)	For internal use.
InternalCreateClipRegion(RectangleF)	For internal use.
InternalCreatePath()	For internal use.
InternalDrawEllipse(RectangleF, Pen)	For internal use.
InternalDrawImage(RectangleF, IImage, float)	For internal use.
InternalDrawLine(PointF, PointF, Pen)	For internal use.
InternalDrawLines(PointF[], Pen)	For internal use.
InternalDrawPath(IPath, Pen)	For internal use.
InternalDrawPolygon(PointF[], Pen)	For internal use.
InternalDrawRectangle(RectangleF, Pen)	For internal use.
InternalDrawRoundRect(RectangleF, float, float, Pen)	For internal use.
InternalDrawTextLayout(TextLayout, PointF)	For internal use.
InternalFillEllipse(RectangleF, Brush, RectangleF?, Matrix3x2?)	For internal use.
InternalFillEllipse(RectangleF, Color)	For internal use.
InternalFillPath(IPath, Brush, RectangleF?, Matrix3x2?)	For internal use.
InternalFillPath(IPath, Color)	For internal use.
InternalFillPolygon(PointF[], Brush, FillMode, RectangleF?, Matrix3x2?)	For internal use.
InternalFillPolygon(PointF[], Color, FillMode)	For internal use.
InternalFillRectangle(RectangleF, Brush, RectangleF?, Matrix3x2?)	For internal use.
InternalFillRectangle(RectangleF, Color)	For internal use.
InternalFillRoundRect(RectangleF, float, float, Brush, RectangleF?, Matrix3x2?)	For internal use.
InternalFillRoundRect(RectangleF, float, float, Color)	For internal use.
InternalRemoveClip(IClipRegion)	For internal use.
InternalSetClip(IClipRegion)	For internal use.
IsBlendModeSupported(BlendMode)	Indicates whether this graphics implementation supports a specified blend mode. The following blend modes are supported by GcPdfGraphics: Normal ColorBurn ColorDodge Darken Difference Exclusion HardLight Lighten Multiply Overlay Screen SoftLight
IsInterpolationModeSupported(InterpolationMode)	Indicates whether this graphics implementation supports a specified interpolation mode. NearestNeighbor is the only interpolation mode supported by GcPdfGraphics.
PopTransparencyLayer()	Stops redirecting drawing operations to the transparency layer that was created by the last PushTransparencyLayer(RectangleF?, float) call.
PushTransparencyLayer(RectangleF?, float)	Adds a transparency layer to the GcPdfGraphics so that it receives all subsequent drawing operations until PopTransparencyLayer() is called.
SetBlendMode(BlendMode)	For internal use. Sets the current blend mode.
SetTransparencyMask(object)	For internal use. Sets a transparency mask for subsequent drawing operations, `mask` was created with IGcGraphicsLayer.CreateTransparencyMask(). Note! `mask` can be null, in this case mask should be removed.