</varlistentry>
<varlistentry>
<term>switch-xy (optional)</term>
- <listitem><para>Swap the X,Y values around in the URL parametrized ordering.</para></listitem>
+ <listitem>
+ <para>Swap the X,Y values around in the URL parametrized ordering.</para>
+ <para>The default is false.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>check-file-server-time (optional)</term>
+ <listitem>
+ <para>Sends the timestamp of the tile to the server, so the server can decide whether it should send a new tile or not.</para>
+ <para>The default is false.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>use-etag (optional)</term>
+ <listitem>
+ <para>Use and compare the <ulink url="http://en.wikipedia.org/wiki/HTTP_ETag">ETag</ulink> value in determining whether to download a newer tile. The default is false.</para>
+ <para>The ETag value is stored in a separate file in the same directory as the tile to enable checking the value across multiple runs of the program.</para>
+ </listitem>
</varlistentry>
</variablelist>
</para>
- <para>The VikTmsMapSource allows to declare any TMS service. It supports the following properties:
+ <para>The VikTmsMapSource allows to declare any TMS service. It supports the following properties (as per VikSlippyMapSource above):
<variablelist>
<varlistentry>
<term>id</term>
- <listitem><para>this is an integer and should be unique as it used to identify the map source</para></listitem>
</varlistentry>
<varlistentry>
<term>label</term>
- <listitem><para>the text displayed in the map's source selection dialog</para></listitem>
</varlistentry>
<varlistentry>
<term>hostname</term>
- <listitem><para>the server's hostname (eg. "tile.openstreetmap.org")</para></listitem>
</varlistentry>
<varlistentry>
<term>url</term>
- <listitem><para>the parametrized address of the tile, in the spirit of C printf format, with 3 "%d" fields for X, Y and Z (zoom level) (eg. "/%d/%d/%d.png")</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>check-file-server-time (optional)</term>
</varlistentry>
</variablelist>
</para>
- <para>The VikWmscMapSource allows to declare any WMS or WMS-C service. It supports the following properties:
+ <para>The VikWmscMapSource allows to declare any WMS or WMS-C service. It supports the following properties (as per VikSlippyMapSource above):
<variablelist>
<varlistentry>
<term>id</term>
- <listitem><para>this is an integer and should be unique as it used to identify the map source</para></listitem>
</varlistentry>
<varlistentry>
<term>label</term>
- <listitem><para>the text displayed in the map's source selection dialog</para></listitem>
</varlistentry>
<varlistentry>
<term>hostname</term>
- <listitem><para>the server's hostname (eg. "tile.openstreetmap.org")</para></listitem>
</varlistentry>
<varlistentry>
<term>url</term>
- <listitem><para>the parametrized address of the tile, in the spirit of C printf format, with 4 "%s" fields for bounding box coordinates (eg. "/coord=%s,%s,%s,%s")</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>check-file-server-time (optional)</term>
</varlistentry>
</variablelist>
</para>