Class: BitmapFont

Inherits:
Object
  • Object
show all
Defined in:
src/ruby/include/cypher.rb

Class Method Summary collapse

Class Method Details

.draw_text(png, s, font, x, y) ⇒ Object 



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# File 'src/ruby/include/cypher.rb', line 124

def self.draw_text(png, s, font, x, y)
    self.load_font(font)
    s.each_char do |c|
        if @@fonts[font][c]
            png.compose!(@@fonts[font][c], x, y)
            x += @@fonts[font][c].width + 3
        elsif c == ' '
            x += @@fonts[font]['A'].width + 3
        end
    end
end

.load_font(path) ⇒ Object 



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# File 'src/ruby/include/cypher.rb', line 113

def self.load_font(path)
    @@fonts ||= {}
    return if @@fonts[path]
    @@fonts[path] = {}
    Dir[File.join(File.join('/app/cypher', path), '*.png')].each do |p|
        c = File.basename(p).sub('.png', '')
        b = ChunkyPNG::Image.from_file(p)
        @@fonts[path][c] = b
    end
end

.text_width(s, font) ⇒ Object 



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# File 'src/ruby/include/cypher.rb', line 136

def self.text_width(s, font)
    self.load_font(font)
    width = 0
    s.each_char do |c|
        if @@fonts[font][c]
            width += @@fonts[font][c].width + 3
        elsif c == ' '
            width += @@fonts[font]['A'].width + 3
        end
    end
    width - 3
end