Fontset(3m17n) The m17n Library Fontset(3m17n)NAME
Fontset - A fontset is an object that maps a character to fonts.
Functions
MFontset * mfontset (char *name)
Return a fontset.
MSymbol mfontset_name (MFontset *fontset)
Return the name of a fontset.
MFontset * mfontset_copy (MFontset *fontset, char *name)
Make a copy of a fontset.
int mfontset_modify_entry (MFontset *fontset, MSymbol script, MSymbol language, MSymbol charset, MFont *spec, MSymbol layouter_name, int
how)
Modify the contents of a fontset.
MPlist * mfontset_lookup (MFontset *fontset, MSymbol script, MSymbol language, MSymbol charset)
Lookup a fontset.
Detailed Description
A fontset is an object that maps a character to fonts.
A fontset is an object of the type MFontset. When drawing an M-text, a fontset provides rules to select a font for each character in the
M-text according to the following information.
o The script character property of a character.
o The language text property of a character.
o The charset text property of a character.
The documentation of mdraw_text() describes how that information is used.
Author
Generated automatically by Doxygen for The m17n Library from the source code.
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 Fontset(3m17n)
Check Out this Related Man Page
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)