class Blend2D::Rendering::Context

• Blend2D::Rendering::Context
• Blend2D::BLStructure
• Reference
• Object

Defined in:

blend2d/rendering/context.cr

Constructors

• .new(image : Image)

  Initialize the context using the given Image.

Instance Method Summary

• #blit(image : Image, point : PointI, area : RectI | Nil = nil)

  Blit an image onto the canvas.

• #blit(image : Image, point : Point, area : RectI | Nil = nil)

  Blit an image onto the canvas.

• #blit(image : Image, rect : RectI, area : RectI | Nil = nil)

  Blit an image onto the canvas.

• #blit(image : Image, rect : Rect, area : RectI | Nil = nil)

  Blit an image onto the canvas.

• #clear_all

  Clear the context.

• #clear_rect(rect : RectI)

  Clear an area of the context defined by a RectI.

• #clear_rect(rect : Rect)

  Clear an area of the context defined by a Rect.

• #clip_to_rect(rect : RectI)

  Clip the context to a RectI.

• #clip_to_rect(rect : Rect)

  Clip the context to a Rect.

• #composition_operator=(operator : CompositionOperator)

  Set the composition operator of this context using CompositionOperator.

• #end

  Ends this context.

• #fill_all

  Fill the entire context.

• #fill_alpha=(alpha)

  Set the fill alpha of this context.

• #fill_geometry(geometry : GeometryType)

  Fill some geometry given a GeometryType, an abstract class that can not be initialized.

• #fill_glyph_run(point : PointI, font : Font, run : GlyphRun)

  Fill some text given a PointI, Font, and GlyphRun.

• #fill_glyph_run(point : Point, font : Font, run : GlyphRun)

  Fill some text given a Point, Font, and GlyphRun.

• #fill_path(path : Path)

  Fill a Path.

• #fill_rect(rect : RectI)

  Fill a RectI.

• #fill_rect(rect : Rect)

  Fill a Rect.

• #fill_style=(color : RGBA32)

  Set the fill color of this context using a color of RGBA32.

• #fill_style=(color : RGBA64)

  Set the fill color of this context using a color of RGBA64.

• #fill_style=(gradient : Gradient)

  Set the fill style of this context to a Gradient.

• #fill_style=(pattern : Pattern)

  Set the fill style of this context to a Pattern.

• #fill_text(point : PointI, font : Font, text : String, encoding : TextEncoding = TextEncoding::UTF8)

  Fill some text given a PointI, Font, and String.

• #fill_text(point : Point, font : Font, text : String, encoding : TextEncoding = TextEncoding::UTF8)

  Fill some text given a Point, Font, and String.

• #finalize

  Called when Crystal's garbage collector collects this instance.

• #global_alpha=(alpha)

  Set the global alpha of this context.

• #matrix_operation(operation : MatrixOperation, data : Array(Float64))

  Apply a matrix operation (one of MatrixOperation), and pass an array of Float64s to specify parameters.

• #reset_matrix

  Reset the context's matrix.

• #restore(cookie : ContextCookie)

  Restore this context from a ContextCookie.

• #restore_clipping

  Restore the clipping on the context.

• #rotate(angle : Float64, cx : Float64, cy : Float64)

  Rotate the context about a point defined by two doubles.

• #rotate(angle : Float64, point : PointI)

  Rotate the context about a point.

• #rotate(angle : Float64, point : Point)

  Rotate the context about a point.

• #rotate(angle : Float64)

  Rotate the context.

• #save : ContextCookie

  Save this context into a ContextCookie.

• #scale(x : Float64, y : Float64)

  Scale the context's matrix by (x, y).

• #scale(factor : Float64)

  Scale the context's matrix by a factor equivalent for both x and y.

• #set_stroke_cap(position : StrokeCapPosition, cap : StrokeCap)

  Set one of the context's stroke caps, given a StrokeCapPosition and a StrokeCap.

• #skew(x : Float64, y : Float64)

  Skew the context's matrix by (x, y).

• #stroke_alpha=(alpha)

  Set the stroke alpha of this context.

• #stroke_caps=(cap : StrokeCap)

  Set both of the context's stroke caps given a StrokeCap.

• #stroke_dash_offset=(dash_offset)

  Set the stroke dash offset.

• #stroke_end_cap=(cap : StrokeCap)

  Equivalent to #set_stroke_cap, passing StrokeCapPosition::End as the first argument.

• #stroke_geometry(geometry : GeometryType)

  Stroke some geometry given a GeometryType, an abstract class that can not be initialized.

• #stroke_glyph_run(point : PointI, font : Font, run : GlyphRun)

  Stroke some text given a PointI, Font, and GlyphRun.

• #stroke_glyph_run(point : Point, font : Font, run : GlyphRun)

  Stroke some text given a Point, Font, and GlyphRun.

• #stroke_join=(join : StrokeJoin)

  Set the stroke join method.

• #stroke_miter_limit=(miter_limit)

  Set this context's miter limit.

• #stroke_options

  Fetch the context's stroke options.

• #stroke_options=(options : StrokeOptions)

  Set the context's stroke options.

• #stroke_path(path : Path)

  Stroke a Path.

• #stroke_rect(rect : RectI)

  Stroke a RectI.

• #stroke_rect(rect : Rect)

  Stroke a Rect.

• #stroke_start_cap=(cap : StrokeCap)

  Equivalent to #set_stroke_cap, passing StrokeCapPosition::Start as the first argument.

• #stroke_style=(color : RGBA32)

  Set the stroke color of this context.

• #stroke_style=(color : RGBA64)

  Set the stroke color of this context.

• #stroke_style=(gradient : Gradient)

  Set the stroke style of this context to a Gradient.

• #stroke_style=(pattern : Pattern)

  Set the stroke style of this context to a Pattern.

• #stroke_text(point : PointI, font : Font, text : String, encoding : TextEncoding = TextEncoding::UTF8)

  Stroke some text given a PointI, Font, and String.

• #stroke_text(point : Point, font : Font, text : String, encoding : TextEncoding = TextEncoding::UTF8)

  Stroke some text given a Point, Font, and String.

• #stroke_width=(width)

  Set this context's stroke width.

• #transform(matrix : Matrix)

  Transform the context using another matrix.

• #translate(x : Float64, y : Float64)

  Translate the context's matrix by (x, y).

• #translate(point : PointI)

  Translate the context's matrix by the point's coordinates.

• #translate(point : Point)

  Translate the context's matrix by the point's coordinates.

Constructor Detail

Instance Method Detail