mfontset(3m17n) The m17n Library mfontset(3m17n)NAME
mfontset - Return a fontset.
SYNOPSIS
MFontset * mfontset (char * name)
DESCRIPTION
Return a fontset. The mfontset() function returns a pointer to a fontset object of name name. If name is NULL, it returns a pointer to the
default fontset.
If no fontset has the name name, a new one is created. At that time, if there exists a data <fontset, name> in the m17n database, the
fontset contents are initialized according to the data. If no such data exists, the fontset contents are left vacant.
The macro M17N_INIT() creates the default fontset. An application program can modify it before the first call of mframe().
RETURN VALUE
This function returns a pointer to the found or newly created fontset.
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>.
Version 1.6.2 12 Jan 2011 mfontset(3m17n)
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mdraw_text(3m17n) The m17n Library mdraw_text(3m17n)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>.
Version 1.6.2 12 Jan 2011 mdraw_text(3m17n)