X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=doc%2Frrdgraph.pod;h=812b24786fff8a26b2cded09ecd6633fff56672b;hp=c451f06a31e0461313c7b24cc0f040d3aa902b7f;hb=c10fefe3a9cdbf1d9daac1bc6bf687362d59115d;hpb=37de076da2c2a0a786a41366de07fb3e1c18cdc5

diff --git a/doc/rrdgraph.pod b/doc/rrdgraph.pod
index c451f06..812b247 100644
--- a/doc/rrdgraph.pod
+++ b/doc/rrdgraph.pod
@@ -297,28 +297,41 @@ elements on the RRD graphs. C<DEFAULT> sets the default value for all
 elements, C<TITLE> for the title, C<AXIS> for the axis labels, C<UNIT>
 for the vertical unit label, C<LEGEND> for the graph legend.
 
-Use Times for the title: C<--font TITLE:13:/usr/lib/fonts/times.ttf>
+Use Times for the title: C<--font TITLE:13:Times>
 
 If you do not give a font string you can modify just the sice of the default font:
 C<--font TITLE:13:>.
 
 If you specify the size 0 then you can modify just the font without touching
 the size. This is especially usefull for altering the default font without
-resetting the default fontsizes: C<--font DEFAULT:0:/usr/lib/fonts/times.ttf>.
+resetting the default fontsizes: C<--font DEFAULT:0:Courier>.
 
 RRDtool comes with a preset default font. You can set the environment
 variable C<RRD_DEFAULT_FONT> if you want to change this.
 
-Truetype fonts are only supported for PNG output. See below.
+RRDtool uses Pango for its font handling. This means you can to use
+the full Pango syntax when selecting your font:
+
+The font name has the form "[I<FAMILY-LIST>] [I<STYLE-OPTIONS>] [I<SIZE>]",
+where I<FAMILY-LIST> is a comma separated list of families optionally
+terminated by a comma, I<STYLE_OPTIONS> is a whitespace separated list of
+words where each WORD describes one of style, variant, weight, stretch, or
+gravity, and I<SIZE> is a decimal number (size in points) or optionally
+followed by the unit modifier "px" for absolute size. Any one of the options
+may be absent.
 
 [B<-R>|B<--font-render-mode> {I<normal>,I<light>,I<mono>}]
 
+(this gets ignored in 1.3 for now!)
+
 This lets you customize the strength of the font smoothing,
 or disable it entirely using I<mono>. By default, I<normal>
 font smoothing is used.
 
 [B<-B>|B<--font-smoothing-threshold> I<size>]
 
+(this gets ignored in 1.3 for now!)
+
 This specifies the largest font size which will be rendered
 bitmapped, that is, without any font smoothing. By default,
 no text is rendered bitmapped.
@@ -339,6 +352,8 @@ Times-Bold, Times-BoldItalic, Times-Italic, Times-Roman, and ZapfDingbats.
 
 [B<-i>|B<--interlaced>]
 
+(this gets ignored in 1.3 for now!)
+
 If images are interlaced they become visible on browsers more quickly.
 
 [B<-g>|B<--no-legend>]
@@ -384,6 +399,27 @@ You need at least one graph element to generate an image and/or
 at least one print statement to generate a report.
 See L<rrdgraph_graph> for the exact format.
 
+=item Markup
+
+All text in rrdtool is rendered using Pango markup. This means text can contain embeded markup instructions.
+Simple html markup using 
+ 
+ <span key="value">text</span>
+
+can be used. Apart from the verbose syntax, there are also the following short tags available.
+
+ b     Bold
+ big   Makes font relatively larger, equivalent to <span size="larger">
+ i     Italic
+ s     Strikethrough
+ sub   Subscript
+ sup   Superscript
+ small Makes font relatively smaller, equivalent to <span size="smaller">
+ tt    Monospace font
+ u     Underline 
+ 
+More details on http://developer.gnome.org/doc/API/2.0/pango/PangoMarkupFormat.html.
+
 =back
 
 =head1 SEE ALSO