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NAME

       mdraw_text - Draw an M-text on a window.

SYNOPSIS

       int mdraw_text (MFrame * frame, MDrawWindow win, int x, int y, MText * mt, int from, int
       to)

DESCRIPTION

       Draw an M-text on a window. The mdraw_text() function draws the text between from and to
       of M-text mt on window win of frame frame at coordinate (x, y).

       The appearance of the text (size, style, color, etc) is specified by the value of the text
       property whose key is Mface.  If the M-text or a part of the M-text does not have such a
       text property, the default face of frame is used.

       The font used to draw a character in the M-text is selected from the value of the fontset
       property of a face by the following algorithm:

       1.  Search the text properties given to the character for the one whose key is Mcharset;
           its value should be either a symbol specifying a charset or Mnil.  If the value is
           Mnil, proceed to the next step.
       Otherwise, search the mapping table of the fontset for the charset. If no entry is found
       proceed to the next step.
       If an entry is found, use one of the fonts in the entry that has a glyph for the character
       and that matches best with the face properties. If no such font exists, proceed to the
       next step.
       2.  Get the character property 'script' of the character. If it is inherited, get the
           script property from the previous characters. If there is no previous character, or
           none of them has the script property other than inherited, proceed to the next step.
       Search the text properties given to the character for the one whose key is Mlanguage; its
       value should be either a symbol specifying a language or Mnil.
       Search the mapping table of the fontset for the combination of the script and language. If
       no entry is found, proceed to the next step.
       If an entry is found, use one of the fonts in the entry that has a glyph for the character
       and that matches best with the face properties. If no such font exists, proceed to the
       next step.
       3.  Search the fall-back table of the fontset for a font that has a glyph of the
           character. If such a font is found, use that font.
       If no font is found by the algorithm above, this function draws an empty box for the
       character.
       This function draws only the glyph foreground. To specify the background color, use
       mdraw_image_text() or mdraw_text_with_control().
       This function is the counterpart of XDrawString(), XmbDrawString(), and XwcDrawString()
       functions in the X Window System.

RETURN VALUE

           If the operation was successful, mdraw_text() returns 0. If an error is detected, it
           returns -1 and assigns an error code to the external variable merror_code.

ERRORS

           MERROR_RANGE

SEE ALSO

           mdraw_image_text()

COPYRIGHT

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology
       (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of
       the GNU Free Documentation License <http://www.gnu.org/licenses/fdl.html>.