CGContextMBS.fillRoundedRect(x as Double, y as Double, w as Double, h as Double, arcWidth as Double, arcHeight as Double)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.fillRoundedRect 100,100,100,100,20,20

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.strokeRoundedRect 100,100,100,100,20,20

CGContextMBS.Flush

Like UpdateNow in the RB window class.

CGContextMBS.frameArc(x as Double, y as Double, w as Double, h as Double, startAngle as Integer, arcAngle as Integer)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.paintArc 100,100,100,100,50,90

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.frameArc 100,100,100,100,50,90

angles are in degree.

CGContextMBS.frameOval(x as Double, y as Double, w as Double, h as Double)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.paintOval 100,100,100,100

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.frameOval 100,100,100,100

CGContextMBS.frameRect(x as Double, y as Double, w as Double, h as Double)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.paintRect 100,100,100,100

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.frameRect 100,100,100,100

Some examples using this method:

• /MacCocoa/RTF Printing

CGContextMBS.GetClipBoundingBox as CGRectMBS

Returns the bounding box of the clipping path, specified in user space.

The bounding box is the smallest rectangle completely enclosing all points in the clipping path, including control points for any Bezier curves in the path.

Available in Mac OS X v10.3 and later.

CGContextMBS.GetCTM as CGAffineTransformMBS

Returns nil on any error.

CGContextMBS.GetPathBoundingBox as CGRectMBS

The bounding box is the smallest rectangle completely enclosing all points in the path, including control points for Bezier and quadratic curves.

CGContextMBS.GetPathCurrentPoint as CGPointMBS

CGContextMBS.GetTextPosition as CGPointMBS

Returns nil on any problem.

CGContextMBS.IsPathEmpty as boolean

CGContextMBS.MoveToPoint(x as Double, y as Double)

CGContextMBS.paintArc(x as Double, y as Double, w as Double, h as Double, startAngle as Integer, arcAngle as Integer)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.paintArc 100,100,100,100,50,90

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.frameArc 100,100,100,100,50,90

angles are in degree.

CGContextMBS.paintOval(x as Double, y as Double, w as Double, h as Double)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.paintOval 100,100,100,100

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.frameOval 100,100,100,100

CGContextMBS.paintRect(x as Double, y as Double, w as Double, h as Double)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.paintRect 100,100,100,100

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.frameRect 100,100,100,100

CGContextMBS.PathContainsPoint(point as CGPointMBS, mode as Integer) as boolean

A point is contained within a contexts path if it is inside the painted region when the path is stroked or filled with opaque colors using the path drawing mode mode. point is specified is user space.

Requires Mac OS X 10.4.

CGContextMBS.ReplacePathWithStrokedPath

The resulting path is created such that filling it with the appropriate color will produce the same results as stroking the original path. You can use this path in the same way you can use the path of any context; for example, you can clip to the stroked version of a path by calling this function followed by a call to "ClipPath".
Requires Mac OS X 10.4.

CGContextMBS.RestoreGState

Some examples using this method:

• /GraphicsMagick/GraphicsMagick/SVG Test/SVG Rastor
• /MacCG/CG Ovals
• /MacCG/CG Ovals with PDF in memory
• /MacCG/CGGradient test
• /MacCG/CoreGraphics PDF/PDF Text
• /MacCG/CoreGraphics PDF/PDF using Save and Restore
• /MacCG/CoreText/CoreText Dynamic Text Height
• /MacCG/CoreText/CoreText Test
• /MacCG/Print PDF with CoreGraphics/Print PDF with CoreGraphics
• /MacCG/Quartz Gradients

CGContextMBS.RotateCTM(angle as Double)

// Rotate a picture not on the edge of the context:

dim c as CGImageMBS
dim f as FolderItem
dim d as CGDataProviderMBS
dim cg as CGContextMBS
dim r as CGRectMBS

f=SpecialFolder.Desktop.Child("IMAG0001.JPG")

d=CGDataProviderMBS.CreateWithFile(f)
c=CGCreateImageFromJPEGDataProviderMBS(d,nil,true,0)

cg=window1.CGContextMBS

r=CGMakeRectMBS(-c.Width/2,-c.Height/2,c.Width,c.Height)
cg.TranslateCTM Width/2,Height/2
cg.RotateCTM Slider1.Value/180.0*3.14
cg.DrawPicture c,r

cg.Flush

Some examples using this method:

• /MacCG/CoreGraphics Bitmap
• /MacCG/CoreGraphics PDF/PDF Text
• /MacCG/CoreGraphics PDF/PDF using Save and Restore
• /MacCG/CoreGraphics PDF/PDF with paths
• /MacCG/CoreGraphics PDF/PDF with paths and gradient
• /MacCG/Print PDF with CoreGraphics/Print PDF with CoreGraphics
• /MacCG/Rotate PDF Page

CGContextMBS.SaveGState

Some examples using this method:

• /GraphicsMagick/GraphicsMagick/SVG Test/SVG Rastor
• /MacCG/CG Ovals with PDF in memory
• /MacCG/CGGradient test
• /MacCG/CoreGraphics Bitmap
• /MacCG/CoreGraphics PDF/PDF Text
• /MacCG/CoreGraphics PDF/PDF using Save and Restore
• /MacCG/CoreText/CoreText Dynamic Text Height
• /MacCG/Print PDF with CoreGraphics/Print PDF with CoreGraphics
• /MacCG/Quartz Gradients
• /MacCG/Rotate PDF Page

CGContextMBS.ScaleCTM(sx as Double, sy as Double)

Some examples using this method:

• /MacCG/CG Ovals
• /MacCG/CG Ovals with PDF in memory
• /MacFrameworks/MapKit/MapKit Test

CGContextMBS.SelectFont(name as string, size as Double, fontencoding as Integer)

Name: string that contains the PostScript name of the font to set.

'textEncoding' specifies how to translate from bytes to glyphs.

kCGEncodingFontSpecific	0
kCGEncodingMacRoman	1

As "Comic Sans MS" works, but not ""Comic Sans ms" this functions seems to be case sensitive.

Matthias Buercher notes that sometimes a font is not selected if the RGBFillColor was not set before.

You may need to reset the textmatrix with some code like c.TextMatrix = CGAffineTransformMBS.Identity. If the text matrix is different, your text may be rotated, skewed or resized.

Some examples using this method:

• /MacCG/Carbon Print Manager/Carbon Print Hello
• /MacCG/CoreGraphics Bitmap
• /MacCG/CoreGraphics PDF/PDF Font list
• /MacCG/CoreGraphics PDF/PDF Text

CGContextMBS.SetAllowsAntialiasing(allowsAntialiasing as boolean)

Allow antialiasing in context if allowsAntialiasing is true; don't allow it otherwise. This parameter is not part of the graphics state. A context will perform antialiasing if both allowsAntialiasing and the graphics state parameter shouldAntialias are true.
Requires Mac OS X 10.4 to work.

CGContextMBS.SetBlendMode(BlendMode as Integer)

Requires Mac OS X 10.4.

CGContextMBS.SetFillColor(color as CGColorMBS)

CGContextMBS.SetFillColorSpace(colorspace as CGColorSpaceMBS)

CGContextMBS.SetFont(font as CGFontMBS)

CGContextMBS.SetLineDash(phase as Double, lengths as memoryblock, count as Integer)

phase:
A value that specifies how far into the dash pattern the line starts, in units of the user space. For example, passing a value of 3 means the line is drawn with the dash pattern starting at three units from its beginning. Passing a value of 0 draws a line starting with the beginning of a dash pattern.

lengths:
A memoryblock of float values that specify the lengths of the painted segments and unpainted segments, respectively, of the dash pattern—or nil for no dash pattern.

For example, passing a memoryblock with the values [2,3] sets a dash pattern that alternates between a 2-user-space-unit-long painted segment and a 3-user-space-unit-long unpainted segment. Passing the values [1,3,4,2] sets the pattern to a 1-unit painted segment, a 3-unit unpainted segment, a 4-unit painted segment, and a 2-unit unpainted segment.

count
If the lengths parameter specifies a memorybloc, pass the number of elements in the memoryblock. Otherwise, pass 0.

CGContextMBS.SetShadow(x as Double, y as Double, blur as Double)

Sub Paint(g As Graphics)
  dim c as CGContextMBS
  
  c=window1.CGContextMBS
  
  c.SetShadow 5,5,0.5
  c.SetRGBFillColor 1,0,0,1
  c.FillRect CGMakeRectMBS(100,100,100,100)
  c.Flush
  
End Sub

x/y: Specifies a translation of the context's coordinate system, to establish an offset for the shadow ({0,0} specifies a light source immediately above the screen).
blur: A non-negative number specifying the amount of blur.

Shadow parameters are part of the graphics state in a context. After shadowing is set, all objects drawn are shadowed using a black color with 1/3 alpha (i.e., RGBA = {0, 0, 0, 1.0/3.0}) in the DeviceRGB color space.

To turn off shadowing:

• Use the standard save/restore mechanism for the graphics state.
• Use CGContextSetShadowWithColor to set the shadow color to a fully transparent color (or pass nil as the color).

CGContextMBS.SetShadowWithColor(x as Double, y as Double, blur as Double, colorvalue as CGColorMBS)

x/y: Specifies a translation in base-space.
blur: A non-negative number specifying the amount of blur.
colorvalue: Specifies the color of the shadow, which may contain a non-opaque alpha value. If nil, then shadowing is disabled.

See also SetShadow.

CGContextMBS.SetShouldSmoothFonts(shouldSmoothFonts as boolean)

Turn on font smoothing if shouldSmoothFonts is true; turn it off otherwise. This parameter is part of the graphics state. Note that this doesn't guarantee that font smoothing will occur: not all destination contexts support font smoothing.
Requires Mac OS X 10.2.

CGContextMBS.SetStrokeColor(color as CGColorMBS)

CGContextMBS.SetStrokeColorSpace(colorspace as CGColorSpaceMBS)

CGContextMBS.ShowText(text as string)

Each byte of the string is mapped through the encoding vector of the current font to obtain the glyph to display.
This function is more for quick and dirty text output, but not for serious drawing as it does not do most unicode strings correctly. Use ATS for better drawing.

Some RB 5.x versions show a bug that the text is not displayed on a CGContext in while running the application in debug mode.

CGContextMBS.ShowTextAtPoint(text as string, x as Double, y as Double)

Each byte of the string is mapped through the encoding vector of the current font to obtain the glyph to display.
This function is more for quick and dirty text output, but not for serious drawing as it does not do most unicode strings correctly. Use ATS for better drawing.

Some RB 5.x versions show a bug that the text is not displayed on a CGContext in while running the application in debug mode.

Some examples using this method:

• /MacCG/Carbon Print Manager/Carbon Print Hello
• /MacCG/CoreGraphics Bitmap
• /MacCG/CoreGraphics PDF/PDF Font list
• /MacCG/CoreGraphics PDF/PDF Text

CGContextMBS.StrokeEllipseInRect(rect as CGRectMBS)

Requires Mac OS X 10.4.

CGContextMBS.StrokePath

dim c as CGContextMBS

c=window1.CGContextMBS

c.SetRGBStrokeColor 1,0,0,1
c.BeginPath
c.MoveToPoint 0,0
c.AddLineToPoint 100,100
c.StrokePath
c.Flush

CGContextMBS.StrokeRect(rect as CGRectMBS)

CGContextMBS.StrokeRectWithWidth(rect as CGRectMBS, width as Double)

CGContextMBS.strokeRoundedRect(x as Double, y as Double, w as Double, h as Double, arcWidth as Double, arcHeight as Double)

dim c as CGContextMBS

c=window1.CGContextMBS

// fill in red
c.SetRGBFillColor 1,0,0,1
c.fillRoundedRect 100,100,100,100,20,20

// draw in green
c.SetRGBStrokeColor 0,1,0,1
c.strokeRoundedRect 100,100,100,100,20,20

CGContextMBS.Synchronize

CGContextMBS.TextMatrix as CGAffineTransformMBS

Returns nil on any error.
(Read and Write computed property)

CGContextMBS.TextPosition as CGPointMBS

(Read and Write computed property)

Some examples using this property:

• /MacCG/CoreText/CoreText Dynamic Text Height
• /MacCG/CoreText/CoreText Test