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Update documentation on font browser
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Joris van der Hoeven
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<TeXmacs|1.0.0.14>
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<TeXmacs|1.99.1>
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<style|tmdoc>
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<style|<tuple|tmdoc|english>>
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<\body>
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<expand|tmdoc-title|The font selection system>
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<tmdoc-title|The font selection system>
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In <apply|TeXmacs>, fonts have five main characteristics:
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In <TeXmacs>, the global document font can be specified using
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<menu|Document|Font>. It is also possible to locally use another font using
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<menu|Format|Font>. Both <menu|Document|Font> and <menu|Format|Font> open
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the <TeXmacs> font browser. Fonts have three main characteristics:
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<\itemize>
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<item>Its name (roman, pandora, concrete, etc.).
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<\description>
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<item*|Family>Fonts are grouped together into <em|families> with a
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similar design.
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<item>Its family (roman, typewriter or sans serif).
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<item*|Shape>Inside the same font family, individual fonts have different
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<em|shapes>, such as bold, italic, small capitals, etc.
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<item>Its size (a base size (in points) and a relative size (normal,
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small, etc.).
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<item*|Size>The font <em|size> in points.
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</description>
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<item>Its series (bold, medium or light).
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The user may directly specify these three characteristics in the font
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browser, which also displays some sample text for the selected font.
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<item>Its shape (right, italic, small caps, etc.).
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</itemize>
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The font browser also provides a way to quickly select fonts based on
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desirable font properties. For instance, by filtering on a ``bold weight''
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and ``sans serif'', one may find a bold sans serif font which mixes as well
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as possible with the main font. <TeXmacs> allows you to filter on the
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following criteria:
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Notice that in the font selection system of <apply|LaTeX>
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<with|mode|math|2\<varepsilon\>>, the font name and family are only one
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(namely, the family). Notice also that the base font size is specified for
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the entire document in <apply|menu|Document|Font|Size>.
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<\description>
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<item*|Weight>The font <em|weight> corresponds to the ``thickness'' of
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the font:
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<apply|tmdoc-copyright|1998--2002|Joris van der Hoeven>
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<center|<block|<tformat|<table|<row|<cell|<with|font-series|thin|Thin>>|<cell|<with|font-series|light|Light>>|<cell|Medium>|<cell|<with|font-series|bold|Bold>>|<cell|<with|font-series|black|Black>>>>>>>
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<expand|tmdoc-license|Permission is granted to copy, distribute and/or
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modify this document under the terms of the GNU Free Documentation License,
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Version 1.1 or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the section entitled
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"GNU Free Documentation License".>
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</body>
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<item*|Slant>The font <em|slant> determines the angle of the font:
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<\initial>
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<\collection>
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<associate|paragraph width|150mm>
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<associate|odd page margin|30mm>
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<associate|shrinking factor|4>
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<associate|page right margin|30mm>
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<associate|page top margin|30mm>
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<associate|reduction page right margin|25mm>
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<associate|page type|a4>
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<associate|reduction page bottom margin|15mm>
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<associate|even page margin|30mm>
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<associate|reduction page left margin|25mm>
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<associate|page bottom margin|30mm>
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<associate|reduction page top margin|15mm>
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<associate|language|english>
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</collection>
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</initial>
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<center|<block|<tformat|<table|<row|<cell|<with|font-family|normal|Normal>>|<cell|<with|font-shape|italic|Italic>>|<cell|<with|font-shape|slanted|Oblique>>>>>>>
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<\references>
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<\collection>
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<associate|toc-1|<tuple|<uninit>|?>>
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<associate|idx-1|<tuple|1|?>>
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<associate|idx-2|<tuple|1|?>>
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</collection>
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</references>
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<item*|Stretch>This property determines the horizontal width for a fixed
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vertical height:
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<center|<block|<tformat|<table|<row|<cell|<with|font-shape|condensed|Condensed>>|<cell|<with|font-shape|unextended|Unextended>>|<cell|<with|font-shape|wide|Wide>>>>>>>
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<item*|Case>This property determines how lowercase letters are
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capitalized:
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<center|<block|<tformat|<table|<row|<cell|<with|font-shape|mixed|Mixed>>|<cell|<with|font-shape|small-caps|Small
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capitals>>>>>>>
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<item*|Serif>This feature corresponds to the projecting features called
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``serifs'' at the end of strokes:
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<center|<block|<tformat|<table|<row|<cell|<with|font-family|rm|Serif>>|<cell|<with|font-family|ss|Sans
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Serif>>>>>>>
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<item*|Spacing>This feature corresponds to the horizontal spacing between
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characters:
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<center|<block|<tformat|<table|<row|<cell|<with|font-family|rm|Proportional>>|<cell|<with|font-family|tt|Monospaced>>>>>>>
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<item*|Device>This property can be used to immitate specific ``writing
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devices'':
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<center|<block|<tformat|<table|<row|<cell|<with|font-family|rm|Print>>|<cell|<with|font-family|tt|Typewriter>>|<cell|<with|font-family|digital|Digital>>|<cell|<with|font-family|pen|Pen>>|<cell|<with|font-family|artpen|Art
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pen>>|<cell|<with|font-family|chalk|Chalk>>|<cell|<with|font-family|marker|Marker>>>>>>>
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<item*|Category>Various other font features:
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<htab|5mm><block|<tformat|<table|<row|<cell|<with|font-family|ancient|Ancient>>|<cell|<with|font-family|attached|Attached>>|<cell|<with|font-family|calligraphic|Calligraphic>>|<cell|<with|font-family|comic|Comic>>|<cell|<with|font-family|decorative|Decorative>>>|<row|<cell|<with|font-family|distorted|Distorted>>|<cell|<with|font-family|gothic|Gothic>>|<cell|<with|font-family|handwritten|Handwritten>>|<cell|<with|font-family|initials|Initials>>|<cell|<with|font-family|medieval|Medieval>>>|<row|<cell|<with|font-family|miscellaneous|Misscellaneous>>|<cell|<with|font-family|outline|Outline>>|<cell|<with|font-family|retro|Retro>>|<cell|<with|font-family|scifi|Scifi>>|<cell|<with|font-family|title|Title>>>>>><htab|5mm>
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</description>
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Each of the above properties really constitutes a <em|hint> on how the kind
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of font which <em|should> be used. If no suitable font can be found, then
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setting these properties may have no effect. Whenever you apply one or more
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filters, the font browser indicates which fonts match the selected
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properties. It also indicates the closest match for the current font in
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use. When pressing the <menu|Ok> button without selecting any particular
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matching font, then the selected font properties will be inserted as
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<TeXmacs> markup and used as rendering hints. In that case, the rendering
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may change when selecting another global document font (for instance).
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<tmdoc-copyright|1998--2014|Joris van der Hoeven>
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<tmdoc-license|Permission is granted to copy, distribute and/or modify this
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document under the terms of the GNU Free Documentation License, Version 1.1
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or any later version published by the Free Software Foundation; with no
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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Texts. A copy of the license is included in the section entitled "GNU Free
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Documentation License".>
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</body>
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