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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
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<title>Figures</title>
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<nav role="navigation">
<h1><a href="../index.html">
<img src="../docs-src/Figures/Inform.png" height=72">
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<main role="main">
<!--Weave of 'Figures' generated by 7-->
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7 Modules</a></li><li><a href="index.html">multimedia</a></li><li><a href="index.html#2">Chapter 2: Multimedia Features</a></li><li><b>Figures</b></li></ul><p class="purpose">To register the names associated with picture resource numbers, which are defined to allow the final story file to display pictures, and to produce the thumbnail index of figures.</p>
<ul class="toc"><li><a href="2-fgr.html#SP1">&#167;1. Definitions</a></li><li><a href="2-fgr.html#SP12">&#167;12. Blurb and manifest</a></li><li><a href="2-fgr.html#SP16">&#167;16. Thumbnail Index</a></li></ul><hr class="tocbar">
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. Definitions. </b></p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. </b>To be viable, figures have to be of an image format which Blorb recognises,
and in any case we only allow two formats: JPEG and PNG.
</p>
<pre class="display">
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">blorb_figure</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">wording</span><span class="plain"> </span><span class="identifier">name</span><span class="plain">; </span><span class="comment"> text of name</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">filename_of_image_file</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">figure_number</span><span class="plain">; </span><span class="comment"> resource number of this picture inside Blorb</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">alt_description</span><span class="plain">; </span><span class="comment"> word number of double-quoted description</span>
<span class="identifier">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">blorb_figure</span><span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The structure blorb_figure is accessed in 2/se, 2/ef and here.</p>
<p class="inwebparagraph"><a id="SP3"></a><b>&#167;3. </b>One is special:
</p>
<pre class="display">
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">F_cover_art</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP4"></a><b>&#167;4. </b>And we define one type ID.
A resource ID number for a figure (i.e.,
a picture) or a sound effect in the eventual blorb, or for use in Glulx
within the application.
</p>
<pre class="display">
<span class="identifier">kind</span><span class="plain"> *</span><span class="identifier">K_figure_name</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP5"></a><b>&#167;5. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Figures::start<button class="popup" onclick="togglePopup('usagePopup2')">...<span class="popuptext" id="usagePopup2">Usage of <b>PL::Figures::start</b>:<br>none</span></button></span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="identifier">PLUGIN_REGISTER</span><span class="plain">(</span><span class="identifier">PLUGIN_NEW_INSTANCE_NOTIFY</span><span class="plain">, </span><span class="functiontext"><a href="2-fgr.html#SP6">PL::Figures::figures_new_named_instance_notify</a></span><span class="plain">);</span>
<span class="identifier">PLUGIN_REGISTER</span><span class="plain">(</span><span class="identifier">PLUGIN_NEW_BASE_KIND_NOTIFY</span><span class="plain">, </span><span class="functiontext"><a href="2-fgr.html#SP6">PL::Figures::figures_new_base_kind_notify</a></span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP6"></a><b>&#167;6. </b></p>
<pre class="display">
<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">PL::Figures::figures_new_base_kind_notify<button class="popup" onclick="togglePopup('usagePopup3')">...<span class="popuptext" id="usagePopup3">Usage of <b>PL::Figures::figures_new_base_kind_notify</b>:<br><a href="2-fgr.html#SP5">&#167;5</a></span></button></span><span class="plain">(</span><span class="identifier">kind</span><span class="plain"> *</span><span class="identifier">new_base</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</span><span class="plain">, </span><span class="identifier">wording</span><span class="plain"> </span><span class="identifier">W</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Str::eq_wide_string</span><span class="plain">(</span><span class="identifier">name</span><span class="plain">, </span><span class="identifier">L</span><span class="string">"FIGURE_NAME_TY"</span><span class="plain">)) {</span>
<span class="identifier">K_figure_name</span><span class="plain"> = </span><span class="identifier">new_base</span><span class="plain">; </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">TRUE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">allow_figure_creations</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">PL::Figures::figures_new_named_instance_notify<button class="popup" onclick="togglePopup('usagePopup4')">...<span class="popuptext" id="usagePopup4">Usage of <b>PL::Figures::figures_new_named_instance_notify</b>:<br><a href="2-fgr.html#SP5">&#167;5</a></span></button></span><span class="plain">(</span><span class="identifier">instance</span><span class="plain"> *</span><span class="identifier">nc</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">K_figure_name</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="identifier">kind</span><span class="plain"> *</span><span class="identifier">K</span><span class="plain"> = </span><span class="identifier">Instances::to_kind</span><span class="plain">(</span><span class="identifier">nc</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Kinds::Compare::eq</span><span class="plain">(</span><span class="identifier">K</span><span class="plain">, </span><span class="identifier">K_figure_name</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">allow_figure_creations</span><span class="plain"> == </span><span class="identifier">FALSE</span><span class="plain">)</span>
<span class="identifier">Problems::Issue::sentence_problem</span><span class="plain">(</span><span class="identifier">Task::syntax_tree</span><span class="plain">(), </span><span class="identifier">_p_</span><span class="plain">(</span><span class="identifier">PM_BackdoorFigureCreation</span><span class="plain">),</span>
<span class="string">"this is not the way to create a new figure name"</span><span class="plain">,</span>
<span class="string">"which should be done with a special 'Figure ... is the file ...' "</span>
<span class="string">"sentence."</span><span class="plain">);</span>
<span class="identifier">Instances::set_connection</span><span class="plain">(</span><span class="identifier">nc</span><span class="plain">,</span>
<span class="identifier">STORE_POINTER_blorb_figure</span><span class="plain">(</span><span class="functiontext"><a href="2-fgr.html#SP6">PL::Figures::new_blorb_figure</a></span><span class="plain">(</span><span class="identifier">nc</span><span class="plain">)));</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">TRUE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="functiontext">PL::Figures::new_blorb_figure<button class="popup" onclick="togglePopup('usagePopup5')">...<span class="popuptext" id="usagePopup5">Usage of <b>PL::Figures::new_blorb_figure</b>:<br>none</span></button></span><span class="plain">(</span><span class="identifier">instance</span><span class="plain"> *</span><span class="identifier">nc</span><span class="plain">) {</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">bf</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">blorb_figure</span><span class="plain">);</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">name</span><span class="plain"> = </span><span class="identifier">EMPTY_WORDING</span><span class="plain">;</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain"> = -1;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">bf</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP7"></a><b>&#167;7. </b>Figure allocation now follows. This handles the special meaning "X is an figure...".
</p>
<pre class="display">
<span class="plain">&lt;</span><span class="identifier">new</span><span class="plain">-</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">-</span><span class="identifier">object</span><span class="plain">&gt; ::=</span>
<span class="plain">&lt;</span><span class="identifier">definite</span><span class="plain">-</span><span class="identifier">article</span><span class="plain">&gt; &lt;</span><span class="identifier">new</span><span class="plain">-</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">-</span><span class="identifier">object</span><span class="plain">-</span><span class="identifier">unarticled</span><span class="plain">&gt; | ==&gt; </span><span class="identifier">R</span><span class="plain">[2]; *</span><span class="identifier">XP</span><span class="plain"> = </span><span class="identifier">RP</span><span class="plain">[2]</span>
<span class="plain">&lt;</span><span class="identifier">new</span><span class="plain">-</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">-</span><span class="identifier">object</span><span class="plain">-</span><span class="identifier">unarticled</span><span class="plain">&gt; ==&gt; </span><span class="identifier">R</span><span class="plain">[1]; *</span><span class="identifier">XP</span><span class="plain"> = </span><span class="identifier">RP</span><span class="plain">[1]</span>
<span class="plain">&lt;</span><span class="identifier">new</span><span class="plain">-</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">-</span><span class="identifier">object</span><span class="plain">-</span><span class="identifier">unarticled</span><span class="plain">&gt; ::=</span>
<span class="identifier">file</span><span class="plain"> &lt;</span><span class="identifier">nounphrase</span><span class="plain">&gt; ==&gt; </span><span class="identifier">TRUE</span><span class="plain">; *</span><span class="identifier">XP</span><span class="plain"> = </span><span class="identifier">RP</span><span class="plain">[1]</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP8"></a><b>&#167;8. </b></p>
<pre class="display">
<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">PL::Figures::new_figure_SMF<button class="popup" onclick="togglePopup('usagePopup6')">...<span class="popuptext" id="usagePopup6">Usage of <b>PL::Figures::new_figure_SMF</b>:<br>none</span></button></span><span class="plain">(</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">task</span><span class="plain">, </span><span class="identifier">parse_node</span><span class="plain"> *</span><span class="identifier">V</span><span class="plain">, </span><span class="identifier">wording</span><span class="plain"> *</span><span class="identifier">NPs</span><span class="plain">) {</span>
<span class="identifier">wording</span><span class="plain"> </span><span class="identifier">SW</span><span class="plain"> = (</span><span class="identifier">NPs</span><span class="plain">)?(</span><span class="identifier">NPs</span><span class="plain">[0]):</span><span class="identifier">EMPTY_WORDING</span><span class="plain">;</span>
<span class="identifier">wording</span><span class="plain"> </span><span class="identifier">OW</span><span class="plain"> = (</span><span class="identifier">NPs</span><span class="plain">)?(</span><span class="identifier">NPs</span><span class="plain">[1]):</span><span class="identifier">EMPTY_WORDING</span><span class="plain">;</span>
<span class="reserved">switch</span><span class="plain"> (</span><span class="identifier">task</span><span class="plain">) { </span><span class="comment"> "Figure... is the file..."</span>
<span class="reserved">case</span><span class="plain"> </span><span class="identifier">ACCEPT_SMFT:</span>
<span class="reserved">if</span><span class="plain"> ((&lt;</span><span class="identifier">nounphrase</span><span class="plain">-</span><span class="identifier">figure</span><span class="plain">&gt;(</span><span class="identifier">SW</span><span class="plain">)) &amp;&amp; (&lt;</span><span class="identifier">new</span><span class="plain">-</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">-</span><span class="identifier">object</span><span class="plain">&gt;(</span><span class="identifier">OW</span><span class="plain">))) {</span>
<span class="identifier">ParseTree::annotate_int</span><span class="plain">(</span><span class="identifier">V</span><span class="plain">, </span><span class="identifier">verb_id_ANNOT</span><span class="plain">, </span><span class="identifier">SPECIAL_MEANING_VB</span><span class="plain">);</span>
<span class="identifier">parse_node</span><span class="plain"> *</span><span class="identifier">O</span><span class="plain"> = &lt;&lt;</span><span class="identifier">rp</span><span class="plain">&gt;&gt;;</span>
<span class="plain">&lt;</span><span class="identifier">nounphrase</span><span class="plain">&gt;(</span><span class="identifier">SW</span><span class="plain">);</span>
<span class="identifier">V</span><span class="plain">-&gt;</span><span class="identifier">next</span><span class="plain"> = &lt;&lt;</span><span class="identifier">rp</span><span class="plain">&gt;&gt;;</span>
<span class="identifier">V</span><span class="plain">-&gt;</span><span class="identifier">next</span><span class="plain">-&gt;</span><span class="identifier">next</span><span class="plain"> = </span><span class="identifier">O</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">TRUE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">break</span><span class="plain">;</span>
<span class="reserved">case</span><span class="plain"> </span><span class="identifier">TRAVERSE1_SMFT:</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Plugins::Manage::plugged_in</span><span class="plain">(</span><span class="identifier">figures_plugin</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">)</span>
<span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"Figures plugin inactive"</span><span class="plain">);</span>
<span class="functiontext"><a href="2-fgr.html#SP11">PL::Figures::register_figure</a></span><span class="plain">(</span><span class="identifier">ParseTree::get_text</span><span class="plain">(</span><span class="identifier">V</span><span class="plain">-&gt;</span><span class="identifier">next</span><span class="plain">),</span>
<span class="identifier">ParseTree::get_text</span><span class="plain">(</span><span class="identifier">V</span><span class="plain">-&gt;</span><span class="identifier">next</span><span class="plain">-&gt;</span><span class="identifier">next</span><span class="plain">));</span>
<span class="reserved">break</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP9"></a><b>&#167;9. </b></p>
<pre class="display">
<span class="plain">&lt;</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">-</span><span class="identifier">object</span><span class="plain">&gt; ::=</span>
<span class="plain">&lt;</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">source</span><span class="plain">&gt; ( &lt;</span><span class="identifier">quoted</span><span class="plain">-</span><span class="identifier">text</span><span class="plain">&gt; ) | ==&gt; </span><span class="identifier">R</span><span class="plain">[1]; &lt;&lt;</span><span class="identifier">alttext</span><span class="plain">&gt;&gt; = </span><span class="identifier">R</span><span class="plain">[2];</span>
<span class="plain">&lt;</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">source</span><span class="plain">&gt; ==&gt; </span><span class="identifier">R</span><span class="plain">[1]</span>
<span class="plain">&lt;</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">source</span><span class="plain">&gt; ::=</span>
<span class="identifier">of</span><span class="plain"> </span><span class="identifier">cover</span><span class="plain"> </span><span class="identifier">art</span><span class="plain"> | ==&gt; -1</span>
<span class="plain">&lt;</span><span class="identifier">quoted</span><span class="plain">-</span><span class="identifier">text</span><span class="plain">&gt; | ==&gt; </span><span class="identifier">R</span><span class="plain">[1]</span>
<span class="plain">... ==&gt; </span>&lt;<span class="cwebmacro">Issue PM_PictureNotTextual problem</span> <span class="cwebmacronumber">9.1</span>&gt;<span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP9_1"></a><b>&#167;9.1. </b><code class="display">
&lt;<span class="cwebmacrodefn">Issue PM_PictureNotTextual problem</span> <span class="cwebmacronumber">9.1</span>&gt; =
</code></p>
<pre class="displaydefn">
<span class="identifier">Problems::Issue::sentence_problem</span><span class="plain">(</span><span class="identifier">Task::syntax_tree</span><span class="plain">(), </span><span class="identifier">_p_</span><span class="plain">(</span><span class="identifier">PM_PictureNotTextual</span><span class="plain">),</span>
<span class="string">"a figure can only be declared as a quoted file name"</span><span class="plain">,</span>
<span class="string">"which should be the name of a JPEG or PNG image inside the "</span>
<span class="string">"project's .materials folder. For instance, 'Figure 2 is the "</span>
<span class="string">"file \"Crossed Swords.png\".'"</span><span class="plain">);</span>
<span class="plain">*</span><span class="identifier">X</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">This code is used in <a href="2-fgr.html#SP9">&#167;9</a>.</p>
<p class="inwebparagraph"><a id="SP10"></a><b>&#167;10. </b>This is a figure name which Inform provides special support for; it
recognises the English name when it is defined by the Standard Rules. (So there
is no need to translate this to other languages.)
</p>
<pre class="display">
<span class="plain">&lt;</span><span class="identifier">notable</span><span class="plain">-</span><span class="identifier">figures</span><span class="plain">&gt; ::=</span>
<span class="identifier">of</span><span class="plain"> </span><span class="identifier">cover</span><span class="plain"> </span><span class="identifier">art</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP11"></a><b>&#167;11. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Figures::register_figure<button class="popup" onclick="togglePopup('usagePopup7')">...<span class="popuptext" id="usagePopup7">Usage of <b>PL::Figures::register_figure</b>:<br><a href="2-fgr.html#SP8">&#167;8</a></span></button></span><span class="plain">(</span><span class="identifier">wording</span><span class="plain"> </span><span class="identifier">F</span><span class="plain">, </span><span class="identifier">wording</span><span class="plain"> </span><span class="identifier">FN</span><span class="plain">) {</span>
<span class="plain">&lt;&lt;</span><span class="identifier">alttext</span><span class="plain">&gt;&gt; = -1;</span>
<span class="plain">&lt;</span><span class="identifier">figure</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">-</span><span class="identifier">object</span><span class="plain">&gt;(</span><span class="identifier">FN</span><span class="plain">);</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">wn</span><span class="plain"> = &lt;&lt;</span><span class="identifier">r</span><span class="plain">&gt;&gt;;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">wn</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">wn</span><span class="plain"> &gt; </span><span class="constant">0</span><span class="plain">) </span><span class="identifier">Word::dequote</span><span class="plain">(</span><span class="identifier">wn</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (&lt;&lt;</span><span class="identifier">alttext</span><span class="plain">&gt;&gt; &gt; </span><span class="constant">0</span><span class="plain">) </span><span class="identifier">Word::dequote</span><span class="plain">(&lt;&lt;</span><span class="identifier">alttext</span><span class="plain">&gt;&gt;);</span>
<span class="identifier">Assertions::Creator::vet_name_for_noun</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> ((&lt;</span><span class="identifier">s</span><span class="plain">-</span><span class="identifier">value</span><span class="plain">&gt;(</span><span class="identifier">F</span><span class="plain">)) &amp;&amp;</span>
<span class="plain">(</span><span class="identifier">Rvalues::is_CONSTANT_of_kind</span><span class="plain">(&lt;&lt;</span><span class="identifier">rp</span><span class="plain">&gt;&gt;, </span><span class="identifier">K_figure_name</span><span class="plain">))) {</span>
<span class="identifier">Problems::Issue::sentence_problem</span><span class="plain">(</span><span class="identifier">Task::syntax_tree</span><span class="plain">(), </span><span class="identifier">_p_</span><span class="plain">(</span><span class="identifier">PM_PictureDuplicate</span><span class="plain">),</span>
<span class="string">"this is already the name of a Figure"</span><span class="plain">,</span>
<span class="string">"so there must be some duplication somewhere."</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">allow_figure_creations</span><span class="plain"> = </span><span class="identifier">TRUE</span><span class="plain">;</span>
<span class="identifier">pcalc_prop</span><span class="plain"> *</span><span class="identifier">prop</span><span class="plain"> = </span><span class="identifier">Calculus::Propositions::Abstract::to_create_something</span><span class="plain">(</span><span class="identifier">K_figure_name</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">);</span>
<span class="identifier">Calculus::Propositions::Assert::assert_true</span><span class="plain">(</span><span class="identifier">prop</span><span class="plain">, </span><span class="identifier">CERTAIN_CE</span><span class="plain">);</span>
<span class="identifier">allow_figure_creations</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">bf</span><span class="plain"> = </span><span class="identifier">RETRIEVE_POINTER_blorb_figure</span><span class="plain">(</span>
<span class="identifier">Instances::get_connection</span><span class="plain">(</span><span class="identifier">latest_instance</span><span class="plain">));</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">name</span><span class="plain"> = </span><span class="identifier">F</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">wn</span><span class="plain"> &gt;= </span><span class="constant">0</span><span class="plain">) {</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain"> = </span><span class="identifier">Task::get_next_free_blorb_resource_ID</span><span class="plain">();</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">leaf</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">leaf</span><span class="plain">, </span><span class="string">"%N"</span><span class="plain">, </span><span class="identifier">wn</span><span class="plain">);</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain"> = </span><span class="identifier">Filenames::in</span><span class="plain">(</span><span class="identifier">Task::figures_path</span><span class="plain">(), </span><span class="identifier">leaf</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">leaf</span><span class="plain">);</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain"> = &lt;&lt;</span><span class="identifier">alttext</span><span class="plain">&gt;&gt;;</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain"> = </span><span class="constant">1</span><span class="plain">;</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain"> = &lt;&lt;</span><span class="identifier">alttext</span><span class="plain">&gt;&gt;;</span>
<span class="identifier">F_cover_art</span><span class="plain"> = </span><span class="identifier">bf</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">LOGIF</span><span class="plain">(</span><span class="identifier">FIGURE_CREATIONS</span><span class="plain">, </span><span class="string">"Created figure &lt;%W&gt; = filename '%N' = resource ID %d\n"</span><span class="plain">,</span>
<span class="identifier">F</span><span class="plain">, </span><span class="identifier">wn</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="identifier">figure_number</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">wchar_t</span><span class="plain"> *</span><span class="functiontext">PL::Figures::description_of_cover_art<button class="popup" onclick="togglePopup('usagePopup8')">...<span class="popuptext" id="usagePopup8">Usage of <b>PL::Figures::description_of_cover_art</b>:<br>none</span></button></span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">F_cover_art</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) || (</span><span class="identifier">F_cover_art</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain"> == -1)) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">L</span><span class="string">""</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">Lexer::word_text</span><span class="plain">(</span><span class="identifier">F_cover_art</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP12"></a><b>&#167;12. Blurb and manifest. </b>The picture manifest is used by the implementation of Glulx within the
Inform application to connect picture ID numbers with filenames relative
to the Materials folder for its project.
</p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Figures::write_picture_manifest<button class="popup" onclick="togglePopup('usagePopup9')">...<span class="popuptext" id="usagePopup9">Usage of <b>PL::Figures::write_picture_manifest</b>:<br>none</span></button></span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">include_cover</span><span class="plain">,</span>
<span class="reserved">char</span><span class="plain"> *</span><span class="identifier">cover_art_format</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Plugins::Manage::plugged_in</span><span class="plain">(</span><span class="identifier">figures_plugin</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">bf</span><span class="plain">;</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;?xml version=\"1.0\" encoding=\"UTF-8\"?&gt;\n"</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" "</span>
<span class="string">"\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\"&gt;\n"</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;plist version=\"1.0\"&gt;\n"</span><span class="plain">); </span><span class="identifier">INDENT</span><span class="plain">;</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;dict&gt;\n"</span><span class="plain">); </span><span class="identifier">INDENT</span><span class="plain">;</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;key&gt;Graphics&lt;/key&gt;\n"</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;dict&gt;\n"</span><span class="plain">); </span><span class="identifier">INDENT</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">include_cover</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;key&gt;1&lt;/key&gt;\n"</span><span class="plain">);</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">large</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">strcmp</span><span class="plain">(</span><span class="identifier">cover_art_format</span><span class="plain">, </span><span class="string">"jpg"</span><span class="plain">) == </span><span class="constant">0</span><span class="plain">)</span>
<span class="identifier">large</span><span class="plain"> = </span><span class="identifier">Task::large_cover_art_file</span><span class="plain">(</span><span class="identifier">TRUE</span><span class="plain">);</span>
<span class="reserved">else</span>
<span class="identifier">large</span><span class="plain"> = </span><span class="identifier">Task::large_cover_art_file</span><span class="plain">(</span><span class="identifier">FALSE</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;string&gt;%f&lt;/string&gt;\n"</span><span class="plain">, </span><span class="identifier">large</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">, </span><span class="reserved">blorb_figure</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain"> &gt; </span><span class="constant">1</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;key&gt;%d&lt;/key&gt;\n"</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain">);</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">rel</span><span class="plain">);</span>
<span class="identifier">Filenames::to_text_relative</span><span class="plain">(</span><span class="identifier">rel</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">, </span><span class="identifier">Inbuild::materials</span><span class="plain">());</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;string&gt;%S&lt;/string&gt;\n"</span><span class="plain">, </span><span class="identifier">rel</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">rel</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">OUTDENT</span><span class="plain">; </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;/dict&gt;\n"</span><span class="plain">);</span>
<span class="functiontext"><a href="2-se.html#SP10">PL::Sounds::write_sounds_manifest</a></span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">);</span>
<span class="identifier">OUTDENT</span><span class="plain">; </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;/dict&gt;\n"</span><span class="plain">);</span>
<span class="identifier">OUTDENT</span><span class="plain">; </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;/plist&gt;\n"</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP13"></a><b>&#167;13. </b>The following writes Blurb commands for all of the figures, but not for
the cover art, which is handled by Bibliographic Data.
</p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Figures::write_blurb_commands<button class="popup" onclick="togglePopup('usagePopup10')">...<span class="popuptext" id="usagePopup10">Usage of <b>PL::Figures::write_blurb_commands</b>:<br>none</span></button></span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Plugins::Manage::plugged_in</span><span class="plain">(</span><span class="identifier">figures_plugin</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">bf</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">, </span><span class="reserved">blorb_figure</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain"> &gt; </span><span class="constant">1</span><span class="plain">) {</span>
<span class="identifier">wchar_t</span><span class="plain"> *</span><span class="identifier">desc</span><span class="plain"> = </span><span class="identifier">L</span><span class="string">""</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain"> &gt;= </span><span class="constant">0</span><span class="plain">)</span>
<span class="identifier">desc</span><span class="plain"> = </span><span class="identifier">Lexer::word_text</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Wide::len</span><span class="plain">(</span><span class="identifier">desc</span><span class="plain">) &gt; </span><span class="constant">0</span><span class="plain">)</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"picture %d \"%f\" \"%N\"\n"</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">alt_description</span><span class="plain">);</span>
<span class="reserved">else</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"picture %d \"%f\"\n"</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="identifier">figure_number</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP14"></a><b>&#167;14. </b>The following is used only with the "separate figures" release option.
</p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Figures::write_copy_commands<button class="popup" onclick="togglePopup('usagePopup11')">...<span class="popuptext" id="usagePopup11">Usage of <b>PL::Figures::write_copy_commands</b>:<br>none</span></button></span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Plugins::Manage::plugged_in</span><span class="plain">(</span><span class="identifier">figures_plugin</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">bf</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">, </span><span class="reserved">blorb_figure</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain"> &gt; </span><span class="constant">1</span><span class="plain">)</span>
<span class="identifier">PL::Bibliographic::Release::create_aux_file</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">,</span>
<span class="identifier">Task::released_figures_path</span><span class="plain">(), </span><span class="identifier">L</span><span class="string">"--"</span><span class="plain">, </span><span class="identifier">SEPARATE_FIGURES_PAYLOAD</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP15"></a><b>&#167;15. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Figures::compile_ResourceIDsOfFigures_array<button class="popup" onclick="togglePopup('usagePopup12')">...<span class="popuptext" id="usagePopup12">Usage of <b>PL::Figures::compile_ResourceIDsOfFigures_array</b>:<br>none</span></button></span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Plugins::Manage::plugged_in</span><span class="plain">(</span><span class="identifier">figures_plugin</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="identifier">inter_name</span><span class="plain"> *</span><span class="identifier">iname</span><span class="plain"> = </span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">RESOURCEIDSOFFIGURES_HL</span><span class="plain">);</span>
<span class="identifier">packaging_state</span><span class="plain"> </span><span class="identifier">save</span><span class="plain"> = </span><span class="identifier">Emit::named_array_begin</span><span class="plain">(</span><span class="identifier">iname</span><span class="plain">, </span><span class="identifier">K_number</span><span class="plain">);</span>
<span class="identifier">Emit::array_numeric_entry</span><span class="plain">(0);</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">bf</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">, </span><span class="reserved">blorb_figure</span><span class="plain">) </span><span class="identifier">Emit::array_numeric_entry</span><span class="plain">((</span><span class="identifier">inter_t</span><span class="plain">) </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain">);</span>
<span class="identifier">Emit::array_numeric_entry</span><span class="plain">(0);</span>
<span class="identifier">Emit::array_end</span><span class="plain">(</span><span class="identifier">save</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="inwebparagraph"><a id="SP16"></a><b>&#167;16. Thumbnail Index. </b>The index is presented with thumbnails of a given pixel width, which
the HTML renderer automatically scales to fit. Height is adjusted so as
to match this width, preserving the aspect ratio.
</p>
<pre class="definitions">
<span class="definitionkeyword">define</span> <span class="constant">THUMBNAIL_WIDTH</span><span class="plain"> </span><span class="constant">80</span>
</pre>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Figures::index_all<button class="popup" onclick="togglePopup('usagePopup13')">...<span class="popuptext" id="usagePopup13">Usage of <b>PL::Figures::index_all</b>:<br>none</span></button></span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Plugins::Manage::plugged_in</span><span class="plain">(</span><span class="identifier">figures_plugin</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">blorb_figure</span><span class="plain"> *</span><span class="identifier">bf</span><span class="plain">; </span><span class="reserved">FILE</span><span class="plain"> *</span><span class="identifier">FIGURE_FILE</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">MAX_INDEXED_FIGURES</span><span class="plain"> = </span><span class="identifier">UseOptions::get_index_figure_thumbnails</span><span class="plain">();</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">rv</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">NUMBER_CREATED</span><span class="plain">(</span><span class="reserved">blorb_figure</span><span class="plain">) &lt; </span><span class="constant">2</span><span class="plain">) { </span><span class="comment"> cover art always creates 1</span>
<span class="identifier">HTML_OPEN</span><span class="plain">(</span><span class="string">"p"</span><span class="plain">); </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"There are no figures, or illustrations, in this project."</span><span class="plain">);</span>
<span class="identifier">HTML_CLOSE</span><span class="plain">(</span><span class="string">"p"</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">HTML_OPEN</span><span class="plain">(</span><span class="string">"p"</span><span class="plain">); </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;b&gt;List of Figures&lt;/b&gt;"</span><span class="plain">); </span><span class="identifier">HTML_CLOSE</span><span class="plain">(</span><span class="string">"p"</span><span class="plain">);</span>
<span class="identifier">HTML::begin_html_table</span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">, </span><span class="string">"#ffffff"</span><span class="plain">, </span><span class="identifier">TRUE</span><span class="plain">, </span><span class="constant">0</span><span class="plain">, </span><span class="constant">0</span><span class="plain">, </span><span class="constant">0</span><span class="plain">, </span><span class="constant">0</span><span class="plain">, </span><span class="constant">0</span><span class="plain">);</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">count_of_displayed_figures</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">, </span><span class="reserved">blorb_figure</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain"> &gt; </span><span class="constant">1</span><span class="plain">) {</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">line2</span><span class="plain">);</span>
<span class="reserved">unsigned</span><span class="plain"> </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">width</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">, </span><span class="identifier">height</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
<span class="identifier">rv</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
<span class="identifier">FIGURE_FILE</span><span class="plain"> = </span><span class="identifier">Filenames::fopen</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">, </span><span class="string">"rb"</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">FIGURE_FILE</span><span class="plain">) {</span>
<span class="reserved">char</span><span class="plain"> *</span><span class="identifier">real_format</span><span class="plain"> = </span><span class="string">"JPEG"</span><span class="plain">;</span>
<span class="identifier">rv</span><span class="plain"> = </span><span class="identifier">ImageFiles::get_JPEG_dimensions</span><span class="plain">(</span><span class="identifier">FIGURE_FILE</span><span class="plain">, &amp;</span><span class="identifier">width</span><span class="plain">, &amp;</span><span class="identifier">height</span><span class="plain">);</span>
<span class="identifier">fclose</span><span class="plain">(</span><span class="identifier">FIGURE_FILE</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">rv</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) {</span>
<span class="identifier">FIGURE_FILE</span><span class="plain"> = </span><span class="identifier">Filenames::fopen</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">, </span><span class="string">"rb"</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">FIGURE_FILE</span><span class="plain">) {</span>
<span class="identifier">real_format</span><span class="plain"> = </span><span class="string">"PNG"</span><span class="plain">;</span>
<span class="identifier">rv</span><span class="plain"> = </span><span class="identifier">ImageFiles::get_PNG_dimensions</span><span class="plain">(</span><span class="identifier">FIGURE_FILE</span><span class="plain">, &amp;</span><span class="identifier">width</span><span class="plain">, &amp;</span><span class="identifier">height</span><span class="plain">);</span>
<span class="identifier">fclose</span><span class="plain">(</span><span class="identifier">FIGURE_FILE</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">rv</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) {</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">line2</span><span class="plain">, </span><span class="string">"&lt;i&gt;Unknown image format&lt;/i&gt;"</span><span class="plain">);</span>
<span class="identifier">HTML_TAG</span><span class="plain">(</span><span class="string">"br"</span><span class="plain">);</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">line2</span><span class="plain">, </span><span class="string">"%s format: %d (width) by %d (height) pixels"</span><span class="plain">,</span>
<span class="identifier">real_format</span><span class="plain">, </span><span class="identifier">width</span><span class="plain">, </span><span class="identifier">height</span><span class="plain">);</span>
<span class="identifier">HTML_TAG</span><span class="plain">(</span><span class="string">"br"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">line2</span><span class="plain">, </span><span class="string">"&lt;i&gt;Missing from the Figures folder&lt;/i&gt;"</span><span class="plain">);</span>
<span class="identifier">HTML_TAG</span><span class="plain">(</span><span class="string">"br"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">HTML::first_html_column</span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">, </span><span class="constant">THUMBNAIL_WIDTH</span><span class="plain">+10);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">rv</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) {</span>
<span class="identifier">HTML_TAG_WITH</span><span class="plain">(</span><span class="string">"img"</span><span class="plain">, </span><span class="string">"border=\"0\" src=\"inform:/doc_images/image_problem.png\""</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&amp;nbsp;"</span><span class="plain">);</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">count_of_displayed_figures</span><span class="plain">++ &lt; </span><span class="identifier">MAX_INDEXED_FIGURES</span><span class="plain">) {</span>
<span class="identifier">HTML_TAG_WITH</span><span class="plain">(</span><span class="string">"img"</span><span class="plain">, </span><span class="string">"border=\"1\" src=\"file://%f\" width=\"%d\" height=\"%d\""</span><span class="plain">,</span>
<span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">, </span><span class="constant">THUMBNAIL_WIDTH</span><span class="plain">, </span><span class="constant">THUMBNAIL_WIDTH</span><span class="plain">*</span><span class="identifier">height</span><span class="plain">/</span><span class="identifier">width</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&amp;nbsp;"</span><span class="plain">);</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">HTML_OPEN_WITH</span><span class="plain">(</span><span class="string">"div"</span><span class="plain">, </span><span class="string">"style=\"width:%dpx; height:%dpx; border:1px solid; background-color:#6495ed;\""</span><span class="plain">,</span>
<span class="constant">THUMBNAIL_WIDTH</span><span class="plain">, </span><span class="constant">THUMBNAIL_WIDTH</span><span class="plain">*</span><span class="identifier">height</span><span class="plain">/</span><span class="identifier">width</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&amp;nbsp;"</span><span class="plain">);</span>
<span class="identifier">HTML_CLOSE</span><span class="plain">(</span><span class="string">"div"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">HTML::next_html_column</span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">, </span><span class="constant">0</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%+W"</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">name</span><span class="plain">);</span>
<span class="identifier">Index::link</span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">Wordings::first_wn</span><span class="plain">(</span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">name</span><span class="plain">));</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">rel</span><span class="plain">);</span>
<span class="identifier">Filenames::to_text_relative</span><span class="plain">(</span><span class="identifier">rel</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">filename_of_image_file</span><span class="plain">, </span><span class="identifier">Inbuild::materials</span><span class="plain">());</span>
<span class="identifier">HTML_TAG</span><span class="plain">(</span><span class="string">"br"</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%SFilename: \"%S\" - resource number %d"</span><span class="plain">, </span><span class="identifier">line2</span><span class="plain">, </span><span class="identifier">rel</span><span class="plain">, </span><span class="identifier">bf</span><span class="plain">-&gt;</span><span class="element">figure_number</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">rel</span><span class="plain">);</span>
<span class="identifier">HTML::end_html_row</span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">line2</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="identifier">HTML::end_html_table</span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">);</span>
<span class="identifier">HTML_OPEN</span><span class="plain">(</span><span class="string">"p"</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">count_of_displayed_figures</span><span class="plain"> &gt; </span><span class="identifier">MAX_INDEXED_FIGURES</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"(Only the first %d thumbnails have been shown here, "</span>
<span class="string">"to avoid Inform taking up too much memory. If you'd like to "</span>
<span class="string">"see more, set 'Use index figure thumbnails of at least %d.', or "</span>
<span class="string">"whatever number you want to wait for.)"</span><span class="plain">,</span>
<span class="identifier">MAX_INDEXED_FIGURES</span><span class="plain">, </span><span class="constant">10</span><span class="plain">*</span><span class="identifier">MAX_INDEXED_FIGURES</span><span class="plain">);</span>
<span class="identifier">HTML_CLOSE</span><span class="plain">(</span><span class="string">"p"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<hr class="tocbar">
<ul class="toc"><li><i>(This section begins Chapter 2: Multimedia Features.)</i></li><li><a href="2-se.html">Continue with 'Sound Effects'</a></li></ul><hr class="tocbar">
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