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65 lines
1.7 KiB
65 lines
1.7 KiB
14 years ago
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/*! \page grapher-nsplugin-example.html
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\ingroup nsplugin-examples
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\title Grapher Plugin
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This example graphs data from a simple text file. It
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demonstrates the use of the QNPInstance::writeReady()
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and QNPInstance::write() functions.
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To build the example, you must first build the
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<a href=nsplugin.html>Qt Netscape Plugin Extension</a> library.
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Then type <tt>make</tt> in <tt>extensions/nsplugin/examples/grapher/</tt>
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and copy the resulting <tt>grapher.so</tt> or <tt>npgrapher.dll</tt>
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to the Plugins directory of your WWW browser.
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<EMBED ALIGN=LEFT WIDTH=49% HEIGHT=300 SRC=graph.g1n
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graphstyle=pie fontfamily=times fontsize=18>
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The text file it accepts as input has a title line, then
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a sequence of lines with a number, then a string. The
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plugin displays a pie chart of the numbers, each segment
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labelled by the associated string. The user can select
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a bar chart view of the same data by selecting from the
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menu that appears when they point at the plugin.
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The HTML tag used to embed the graph is:
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<small>
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<pre>
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<EMBED
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SRC=graph.g1n
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ALIGN=LEFT
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WIDTH=49% HEIGHT=300
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graphstyle=pie fontfamily=times
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fontsize=18>
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</pre>
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</small>
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Note that some HTML arguments (which we have capitalized here)
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are interpreted by the browser, while others are used by the
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plugin.
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<br clear>
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With the simplicity and cross-platform nature of Qt-based plugins,
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pages like <a href="http://www.netcraft.com/survey/">Netcraft's
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Server Graphs</a> can be provided much more efficiently for both
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the service provider and consumer. Data need not be converted
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to an image at the server.
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<br clear>
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<hr>
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Implementation:
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\include grapher/grapher.cpp
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*/
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/*! \plainpage graph.g1n
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num label
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10 A
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24 B
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12 C
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7 D
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34 E
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15 F
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19 G
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*/
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