mirror of https://github.com/texmacs/doc.git
69 lines
3.5 KiB
Plaintext
69 lines
3.5 KiB
Plaintext
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<TeXmacs|1.0.7.10>
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<style|tmdoc>
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<\body>
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<tmdoc-title|Traversal of a presentation>
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One major family of markup tags for presentations concerns the traversal of
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the document during a presentation. The keys <key|F10> and <key|F11> are
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used respectively for going back and forth in the presentation. The keys
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<key|F9> and <key|F12> are used to go to the start <abbr|resp.> end of the
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presentation. When using the <tmstyle|beamer> style or when enabling the
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``presentation tool'' in the <menu|Tools> menu, a <menu|Dynamic> menu and
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additional icons will appear, which can also be used for the traversal of
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your presentation.
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The most basic traversal tag is called a ``switch'', and allows the user to
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show different pieces of text in successive and mutually exclusive manner.
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The entire presentation itself usually consists of a <markup|screens>
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switch, where the pieces are the successive ``slides'' of the presentation.
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After selection of the <tmstyle|beamer> style, this switch can be inserted
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using <menu|Focus|Screens> or <menu|Insert|Fold|Switch|Screens>. You may
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jump from one screen to another one using <key|pageup> and <key|pagedown>.
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Inside a switch, new ``branches'' can be inserted after or before the
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currently visible branch using <menu|Focus|Insert argument after> or
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<menu|Focus|Insert argument before>. Besides the <markup|screens> switch,
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you may use <menu|Insert|Fold|Switch|Standard> to insert paragraph-wide
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switches, and <menu|Insert|Fold|Switch|Standard> to insert inline switches
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(similarly to displayed and inline formulas).
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Another popular way to traverse is presentation is to progressively unroll
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content. This can be done by inserting an <markup|unroll> tag using
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<menu|Insert|Fold|Unroll>. Using a ``hack'' this tag can be combined with
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the <markup|itemize> and <markup|enumerate> tags: first create the list
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environment, but remove the first (automatically inserted) <markup|item>
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tag. Next insert the unroll tag. When pressing <key|enter> inside the
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unroll tag, new items are created; you still have to use <menu|Focus|Insert
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argument after> for inserting new branches to the unroll structure (in
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particular, several items could be unrolled at once).
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A variant of unrolling is unfolding. This is basically an unroll tag with
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exactly two branches, but different variants are available in
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<menu|Insert|Fold|Folded> depending on the desired rendering. In
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particular, some of the renderings display a button which may be pushed in
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order to fold or unfold some content. The input-output fields inside
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computer algebra sessions are also foldable. Similarly, the tags in
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<menu|Insert|Fold|Summarize> are switches with two branches, again with
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different kinds of rendering.
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All markup for the traversal of presentations may be nested in a natural
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way. In the <menu|Insert|Fold|Traversal> menu, you may specify whether
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unrolled and folded structures should be folded back after traversal.
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<tmdoc-copyright|2010|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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<\initial>
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<\collection>
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<associate|language|english>
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</collection>
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</initial>
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