Imported Upstream version 2.18.0

[lilypond.git] / Documentation / snippets / new / broken-crescendo-hairpin.ly

diff --git a/Documentation/snippets/new/broken-crescendo-hairpin.ly b/Documentation/snippets/new/broken-crescendo-hairpin.ly
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+\version "2.17.27"
+
+\header {
+  lsrtags = "contemporary-notation, expressive-marks, symbols-and-glyphs"
+
+  texidoc = "
+In order to make parts of a crescendo hairpin invisible, the following
+method is used: A white rectangle is drawn on top of the respective
+part of the crescendo hairpin, making it invisible.
+
+The markup command @code{with-dimensions} tells LilyPond to consider only
+the bottom edge of the rectangle when spacing it against the hairpin.
+The property @code{staff-padding} prevents the rectangle from fitting
+between the hairpin and staff.
+
+Make sure to put the hairpin in a lower layer than the text markup to
+draw the rectangle over the hairpin.
+
+"
+  doctitle = "Broken Crescendo Hairpin"
+}
+
+\relative c' {
+  <<
+    {
+      \dynamicUp
+      r2 r16 c'8.\pp r4
+    }
+    \\
+    {
+      \override DynamicLineSpanner.layer = #0
+      des,2\mf\< ~
+      \override TextScript.layer = #2
+      \once\override TextScript.staff-padding = #6
+      \once\override TextScript.vertical-skylines = #'()
+      des16_\markup \with-dimensions #'(2 . 7) #'(0 . 0)
+                    \with-color #white
+                    \filled-box #'(2 . 7) #'(0 . 2) #0
+      r8. des4 ~ des16->\sff
+    }
+  >>
+}