1wxGraphicsRenderer(3)      Erlang Module Definition      wxGraphicsRenderer(3)
2
3
4

NAME

6       wxGraphicsRenderer - Functions for wxGraphicsRenderer class
7

DESCRIPTION

9       A wxGraphicsRenderer is the instance corresponding to the rendering en‐
10       gine used. There may be multiple instances on a system,  if  there  are
11       different  rendering  engines present, but there is always only one in‐
12       stance per engine. This instance is pointed back to by all objects cre‐
13       ated  by  it  (wxGraphicsContext,  wxGraphicsPath  etc.) and can be re‐
14       trieved through their wxGraphicsObject:getRenderer/1 method.  Therefore
15       you  can  create  an  additional instance of a path etc. by calling wx‐
16       GraphicsObject:getRenderer/1 and then using the appropriate CreateXXX()
17       function of that renderer.
18
19       wxWidgets docs: wxGraphicsRenderer
20

DATA TYPES

22       wxGraphicsRenderer() = wx:wx_object()
23

EXPORTS

25       getDefaultRenderer() -> wxGraphicsRenderer()
26
27              Returns the default renderer on this platform.
28
29              On  macOS this is the Core Graphics (a.k.a. Quartz 2D) renderer,
30              on MSW the GDIPlus renderer, and on GTK we currently default  to
31              the Cairo renderer.
32
33       createContext(This, WindowDC) ->
34                        wxGraphicsContext:wxGraphicsContext()
35
36              Types:
37
38                 This = wxGraphicsRenderer()
39                 WindowDC =
40                     wxWindowDC:wxWindowDC() |
41                     wxWindow:wxWindow() |
42                     wxMemoryDC:wxMemoryDC()
43
44              Creates a wxGraphicsContext from a wxWindowDC.
45
46       createBrush(This, Brush) -> wxGraphicsBrush:wxGraphicsBrush()
47
48              Types:
49
50                 This = wxGraphicsRenderer()
51                 Brush = wxBrush:wxBrush()
52
53              Creates a native brush from a wxBrush.
54
55       createLinearGradientBrush(This, X1, Y1, X2, Y2, Stops) ->
56                                    wxGraphicsBrush:wxGraphicsBrush()
57
58              Types:
59
60                 This = wxGraphicsRenderer()
61                 X1 = Y1 = X2 = Y2 = number()
62                 Stops = wxGraphicsGradientStops:wxGraphicsGradientStops()
63
64              Creates a native brush with a linear gradient.
65
66              Stops  support is new since wxWidgets 2.9.1, previously only the
67              start and end colours could be specified.
68
69              The ability to apply a transformation matrix to the gradient was
70              added in 3.1.3
71
72       createRadialGradientBrush(This, StartX, StartY, EndX, EndY,
73                                 Radius, Stops) ->
74                                    wxGraphicsBrush:wxGraphicsBrush()
75
76              Types:
77
78                 This = wxGraphicsRenderer()
79                 StartX = StartY = EndX = EndY = Radius = number()
80                 Stops = wxGraphicsGradientStops:wxGraphicsGradientStops()
81
82              Creates a native brush with a radial gradient.
83
84              Stops  support is new since wxWidgets 2.9.1, previously only the
85              start and end colours could be specified.
86
87              The ability to apply a transformation matrix to the gradient was
88              added in 3.1.3
89
90       createFont(This, Font) -> wxGraphicsFont:wxGraphicsFont()
91
92              Types:
93
94                 This = wxGraphicsRenderer()
95                 Font = wxFont:wxFont()
96
97       createFont(This, SizeInPixels, Facename) ->
98                     wxGraphicsFont:wxGraphicsFont()
99
100       createFont(This, Font, Facename :: [Option]) ->
101                     wxGraphicsFont:wxGraphicsFont()
102
103              Types:
104
105                 This = wxGraphicsRenderer()
106                 Font = wxFont:wxFont()
107                 Option = {col, wx:wx_colour()}
108
109              Creates a native graphics font from a wxFont and a text colour.
110
111       createFont(This, SizeInPixels, Facename, Options :: [Option]) ->
112                     wxGraphicsFont:wxGraphicsFont()
113
114              Types:
115
116                 This = wxGraphicsRenderer()
117                 SizeInPixels = number()
118                 Facename = unicode:chardata()
119                 Option = {flags, integer()} | {col, wx:wx_colour()}
120
121              Creates a graphics font with the given characteristics.
122
123              If  possible,  the createFont/4 overload taking wxFont should be
124              used instead. The main advantage of this overload is that it can
125              be used without X server connection under Unix when using Cairo.
126
127              Since: 2.9.3
128
129       createMatrix(This) -> wxGraphicsMatrix:wxGraphicsMatrix()
130
131              Types:
132
133                 This = wxGraphicsRenderer()
134
135       createMatrix(This, Options :: [Option]) ->
136                       wxGraphicsMatrix:wxGraphicsMatrix()
137
138              Types:
139
140                 This = wxGraphicsRenderer()
141                 Option =
142                     {a, number()} |
143                     {b, number()} |
144                     {c, number()} |
145                     {d, number()} |
146                     {tx, number()} |
147                     {ty, number()}
148
149              Creates a native affine transformation matrix from the passed in
150              values.
151
152              The defaults result in an identity matrix.
153
154       createPath(This) -> wxGraphicsPath:wxGraphicsPath()
155
156              Types:
157
158                 This = wxGraphicsRenderer()
159
160              Creates a native graphics path which is initially empty.
161
162
163
164wxWidgets team.                    wx 2.1.4              wxGraphicsRenderer(3)