cairo-Text               package:RGtk2               R Documentation

_T_e_x_t

_D_e_s_c_r_i_p_t_i_o_n:

     Rendering text and sets of glyphs

_M_e_t_h_o_d_s _a_n_d _F_u_n_c_t_i_o_n_s:

     'cairoSelectFontFace(cr, family, slant, weight)'
      'cairoSetFontSize(cr, size)'
      'cairoSetFontMatrix(cr, matrix)'
      'cairoGetFontMatrix(cr, matrix)'
      'cairoSetFontOptions(cr, options)'
      'cairoGetFontOptions(cr)'
      'cairoShowText(cr, utf8)'
      'cairoShowGlyphs(cr, glyphs, num.glyphs)'
      'cairoGetFontFace(cr)'
      'cairoFontExtents(cr)'
      'cairoSetFontFace(cr, font.face)'
      'cairoTextExtents(cr, utf8)'
      'cairoGlyphExtents(cr, glyphs)'

_S_t_r_u_c_t_u_r_e_s:

     '_C_a_i_r_o_G_l_y_p_h' The 'CairoGlyph' structure holds information about a
          single glyph when drawing or measuring text. A font is (in
          simple terms) a collection of shapes used to draw text. A
          glyph is one of these shapes. There can be multiple glyphs
          for a single character (alternates to be used in different
          contexts, for example), or a glyph can be a ligature of
          multiple characters. Cairo doesn't expose any way of
          converting input text into glyphs, so in order to use the
          Cairo interfaces that take arrays of glyphs, you must
          directly access the appropriate underlying font system.

          Note that the offsets given by 'x' and 'y' are not
          cumulative. When drawing or measuring text, each glyph is
          individually positioned with respect to the overall origin  
          *'CairoGlyph' is a transparent-type.*

          '_i_n_d_e_x' [numeric]  glyph index in the font. The exact
               interpretation of the glyph index depends on the font
               technology being used.

          '_x' [numeric]  the offset in the X direction between the
               origin used for drawing or measuring the string and the
               origin of this glyph.

          '_y' [numeric]  the offset in the Y direction between the
               origin used for drawing or measuring the string and the
               origin of this glyph.

_E_n_u_m_s _a_n_d _F_l_a_g_s:

          '_n_o_r_m_a_l' _undocumented _

          '_i_t_a_l_i_c' _undocumented _

          '_o_b_l_i_q_u_e' _undocumented _


          '_n_o_r_m_a_l' _undocumented _

          '_b_o_l_d' _undocumented _


_A_u_t_h_o_r(_s):

     Derived by RGtkGen from GTK+ documentation

_R_e_f_e_r_e_n_c_e_s:

     <URL: http://www.cairographics.org/manual/cairo-Text.html>

