Using ly:grob-object to access grobs with \tweak: Difference between revisions

← Older edit Newer edit →

VisualWikitext

@@ Line 1: / Line 1: @@
-Some grobs can be accessed “laterally” from within another grob’s callback. These are usually listed as “layout objects” in the “Internal properties” section of a grob-interface. The function ly:grob-object is used to access these grobs.
+Some grobs can be accessed “laterally” from within another grob’s callback. These are usually listed as “layout objects” in the “Internal properties” section of a grob interface. The function <code>ly:grob-object</code> is used to access these grobs.
-Demonstrated below are some ways of accessing grobs from within a NoteHead callback, but the technique is not limited to NoteHeads. However, the NoteHead callback is particularly important, since it is the implicit callback used by the <code>\tweak</code> command.
+Demonstrated below are some ways of accessing grobs from within a <code>NoteHead</code> callback, but the technique is not limited to <code>NoteHead</code>s. However, the <code>NoteHead</code> callback is particularly important, since it is the implicit callback used by the <code>\tweak</code> command.
-The example function defined below (&quot;display-grobs&quot;) is probably not that useful, but it demonstrates that the grobs are indeed being accessed.
+The console output of the example function below (<code>display-grobs</code>) is as follows.
-Example console output:
+<pre>
+--------------------
+#<Grob Accidental >
+()
+#<Grob Stem >
+</pre>
-<code>#&lt;Grob Accidental &gt;</code><br />
+It is probably not that useful, but it demonstrates that the grobs are indeed being accessed.
-<code>()</code><br />
-<code>#&lt;Grob Stem &gt;</code>
 <lilypond version="2.24">