NAME

       wxGraphicsRenderer - Functions for wxGraphicsRenderer class

DESCRIPTION

       A wxGraphicsRenderer is the instance corresponding to the rendering engine used. There may
       be multiple instances on a system, if there are different rendering engines  present,  but
       there  is  always  only  one  instance per engine. This instance is pointed back to by all
       objects created by it  (wxGraphicsContext,  wxGraphicsPath  etc.)  and  can  be  retrieved
       through   their   wxGraphicsObject:getRenderer/1  method.  Therefore  you  can  create  an
       additional instance of a path etc.  by  calling  wxGraphicsObject:getRenderer/1  and  then
       using the appropriate CreateXXX() function of that renderer.

       wxWidgets docs: wxGraphicsRenderer

DATA TYPES

       wxGraphicsRenderer() = wx:wx_object()

EXPORTS

       getDefaultRenderer() -> wxGraphicsRenderer()

              Returns the default renderer on this platform.

              On  macOS this is the Core Graphics (a.k.a. Quartz 2D) renderer, on MSW the GDIPlus
              renderer, and on GTK we currently default to the Cairo renderer.

       createContext(This, WindowDC) ->
                        wxGraphicsContext:wxGraphicsContext()

              Types:

                 This = wxGraphicsRenderer()
                 WindowDC =
                     wxWindowDC:wxWindowDC() |
                     wxWindow:wxWindow() |
                     wxMemoryDC:wxMemoryDC()

              Creates a wxGraphicsContext from a wxWindowDC.

       createBrush(This, Brush) -> wxGraphicsBrush:wxGraphicsBrush()

              Types:

                 This = wxGraphicsRenderer()
                 Brush = wxBrush:wxBrush()

              Creates a native brush from a wxBrush.

       createLinearGradientBrush(This, X1, Y1, X2, Y2, Stops) ->
                                    wxGraphicsBrush:wxGraphicsBrush()

              Types:

                 This = wxGraphicsRenderer()
                 X1 = Y1 = X2 = Y2 = number()
                 Stops = wxGraphicsGradientStops:wxGraphicsGradientStops()

              Creates a native brush with a linear gradient.

              Stops support is new since wxWidgets 2.9.1,  previously  only  the  start  and  end
              colours could be specified.

              The ability to apply a transformation matrix to the gradient was added in 3.1.3

       createRadialGradientBrush(This, StartX, StartY, EndX, EndY,
                                 Radius, Stops) ->
                                    wxGraphicsBrush:wxGraphicsBrush()

              Types:

                 This = wxGraphicsRenderer()
                 StartX = StartY = EndX = EndY = Radius = number()
                 Stops = wxGraphicsGradientStops:wxGraphicsGradientStops()

              Creates a native brush with a radial gradient.

              Stops  support  is  new  since  wxWidgets  2.9.1, previously only the start and end
              colours could be specified.

              The ability to apply a transformation matrix to the gradient was added in 3.1.3

       createFont(This, Font) -> wxGraphicsFont:wxGraphicsFont()

              Types:

                 This = wxGraphicsRenderer()
                 Font = wxFont:wxFont()

       createFont(This, SizeInPixels, Facename) ->
                     wxGraphicsFont:wxGraphicsFont()

       createFont(This, Font, Facename :: [Option]) ->
                     wxGraphicsFont:wxGraphicsFont()

              Types:

                 This = wxGraphicsRenderer()
                 Font = wxFont:wxFont()
                 Option = {col, wx:wx_colour()}

              Creates a native graphics font from a wxFont and a text colour.

       createFont(This, SizeInPixels, Facename, Options :: [Option]) ->
                     wxGraphicsFont:wxGraphicsFont()

              Types:

                 This = wxGraphicsRenderer()
                 SizeInPixels = number()
                 Facename = unicode:chardata()
                 Option = {flags, integer()} | {col, wx:wx_colour()}

              Creates a graphics font with the given characteristics.

              If possible, the createFont/4 overload taking wxFont should be  used  instead.  The
              main  advantage of this overload is that it can be used without X server connection
              under Unix when using Cairo.

              Since: 2.9.3

       createMatrix(This) -> wxGraphicsMatrix:wxGraphicsMatrix()

              Types:

                 This = wxGraphicsRenderer()

       createMatrix(This, Options :: [Option]) ->
                       wxGraphicsMatrix:wxGraphicsMatrix()

              Types:

                 This = wxGraphicsRenderer()
                 Option =
                     {a, number()} |
                     {b, number()} |
                     {c, number()} |
                     {d, number()} |
                     {tx, number()} |
                     {ty, number()}

              Creates a native affine transformation matrix from the passed in values.

              The defaults result in an identity matrix.

       createPath(This) -> wxGraphicsPath:wxGraphicsPath()

              Types:

                 This = wxGraphicsRenderer()

              Creates a native graphics path which is initially empty.