source: libcaca/trunk/ruby/ruby-caca.dox @ 4292

Last change on this file since 4292 was 4292, checked in by Pascal Terjan, 10 years ago
  • Add back some missing spaces
File size: 4.9 KB
Line 
1/*$Id$ */ /** \page libcaca-ruby-api Libcaca Ruby API
2
3\section classes Classes
4
5The classes available for libcaca are :
6
7\li\b Caca::Canvas : functions that have a caca_canvas_t* as first argument
8\li\b Caca::Dither : functions that have a caca_dither_t* as first argument
9\li\b Caca::Font : functions that have a caca_font_t* as first argument
10(The constructor can currently only accept the name of a builtin font)
11\li\b Caca::Display
12\li\b Caca::Event
13\li\b Caca::Event::Key
14\li\b Caca::Event::Key::Press
15\li\b Caca::Event::Key::Release
16\li\b Caca::Event::Mouse
17\li\b Caca::Event::Mouse::Press
18\li\b Caca::Event::Mouse::Release
19\li\b Caca::Event::Mouse::Motion
20\li\b Caca::Event::Resize
21\li\b Caca::Event::Quit
22
23The character set conversion functions are not available yet in the binding.
24
25\code
26$ irb -rcaca
27irb(main):001:0> class Object
28irb(main):002:1> def Object.my_instance_methods
29irb(main):003:2> instance_methods.sort - ancestors[1].instance_methods
30irb(main):004:2> end
31irb(main):005:1> def Object.my_methods
32irb(main):006:2> methods.sort - ancestors[1].methods
33irb(main):007:2> end
34irb(main):008:1> end
35\endcode
36
37\code
38irb(main):009:0> Caca.constants
39=> ["BROWN", "BOLD", "GREEN", "LIGHTMAGENTA", "LIGHTBLUE", "BLINK",
40"MAGENTA", "DEFAULT", "TRANSPARENT", "BLUE", "LIGHTRED", "DARKGRAY",
41"UNDERLINE", "RED", "WHITE", "BLACK", "LIGHTCYAN", "LIGHTGRAY",
42"ITALICS", "CYAN", "YELLOW", "LIGHTGREEN", "Canvas", "Dither", "Font"]
43\endcode
44
45\code
46irb(main):010:0> Caca.my_methods
47=> ["version"]
48\endcode
49
50\code
51irb(main):011:0> Caca::Canvas.my_methods
52=> ["export_list", "import_list"]
53\endcode
54
55\code
56irb(main):012:0> Caca::Canvas.my_instance_methods
57=> ["attr=", "blit", "clear", "create_frame",
58"dither_bitmap", "draw_box", "draw_circle", "draw_cp437_box", "draw_ellipse",
59"draw_line", "draw_polyline", "draw_thin_box", "draw_thin_ellipse",
60"draw_thin_line", "draw_thin_polyline", "draw_thin_triangle",
61"draw_triangle", "export_to_memory", "fill_box", "fill_ellipse",
62"fill_triangle", "flip", "flop", "frame=", "frame_count", "frame_name",
63"frame_name=", "free_frame", "get_attr", "get_char", "gotoxy",
64"handle_x", "handle_y", "height", "height=", "import_file",
65"import_from_memory", "invert", "printf", "put_attr", "put_char", "put_str",
66"rotate_180", "rotate_left", "rotate_right", "set_attr",
67"set_boundaries", "set_color_ansi", "set_color_argb", "set_frame",
68"set_frame_name", "set_handle", "set_height", "set_size", "set_width",
69"stretch_left", "stretch_right", "wherex", "wherey", "width", "width="]
70\endcode
71
72\code
73irb(main):013:0> Caca::Font.my_methods
74=> ["list"]
75\endcode
76
77\code
78irb(main):014:0> Caca::Font.my_instance_methods
79=> ["blocks", "height", "width"]
80\endcode
81
82\code
83irb(main):015:0> Caca::Dither.my_instance_methods
84=> ["algorithm=", "algorithm_list", "antialias=", "antialias_list",
85"brightness=", "charset=", "charset_list", "color=", "color_list",
86"contrast=", "gamma=", "palette=", "set_algorithm", "set_antialias",
87"set_brightness", "set_charset", "set_color", "set_contrast",
88"set_gamma", "set_palette"]
89\endcode
90
91\code
92irb(main):010:0> Caca::Display.my_instance_methods
93=> ["canvas", "get_event", "height", "mouse=", "mouse_x", "mouse_y", "refresh",
94"set_mouse", "set_time", "set_title", "time", "time=", "title=", "width"]
95\endcode
96
97\code
98irb(main):011:0> Caca::Event.constants
99=> ["Key", "Quit", "TYPE", "Mouse", "Resize"]
100\endcode
101
102\code
103irb(main):012:0> Caca::Event.my_instance_methods
104=> ["quit?"]
105\endcode
106
107\code
108irb(main):013:0> Caca::Event::Key.my_instance_methods
109=> ["ch", "utf32", "utf8"]
110\endcode
111
112\code
113irb(main):014:0> Caca::Event::Mouse.my_instance_methods
114=> ["button", "x", "y"]
115\endcode
116
117\code
118irb(main):015:0> Caca::Event::Resize.my_instance_methods
119=> ["w", "h"]
120\endcode
121
122\section Samples
123
124\code
125$ ruby -rcaca -e 'c=Caca::Canvas.new(6, 3).fill_box(0,0,2,2,"#"[0]);
126c2=Caca::Canvas.new(1,1).put_str(0,0,"x"); c.blit(1,1,c2); puts
127c.export_to_memory("irc")'
128###
129#x#
130###
131\endcode
132
133\code
134$ ruby -e 'puts Caca::Canvas.new(6,3).draw_thin_polyline([[0,0], [0,2],
135[5,2],[0,0]]).export_to_memory("irc")'
136-.
137| `.
138----`-
139\endcode
140
141\code
142$ ruby -rcaca -e 'p Caca::Canvas.export_list'
143[["caca", "native libcaca format"], ["ansi", "ANSI"], ["utf8", "UTF-8
144withANSI escape codes"], ["utf8cr", "UTF-8 with ANSI escape codes and
145MS-DOS\\r"], ["html", "HTML"], ["html3", "backwards-compatible HTML"],
146["irc", "IRC with mIRC colours"], ["ps", "PostScript document"], ["svg",
147"SVGvector image"], ["tga", "TGA image"]]
148\endcode
149
150\code
151$ ruby -rcaca -e 'p Caca::Font.list'
152["Monospace9", "Monospace Bold 12"]
153\endcode
154
155\code
156require 'caca'
157c = Caca::Canvas.new(20,10)
158c.put_str(2,3, "plop!")
159c.draw_thin_polyline([[0,0],[0,2], [5,2], [0,0]])
160d = Caca::Display.new(c)
161d.title= "Test !"
162d.refresh
163
164#Redefine Event::Key#quit? so that q, Q, and Esc become exit keys
165module Caca
166  class Event::Key
167    def quit?
168      "qQ^[".split('').member?(@ch.chr)
169    end
170  end
171end
172
173while((e= d.get_event(Caca::Event, -1)) && ! e.quit?)
174  p e
175  d.refresh
176end
177\endcode
178
179*/
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