limit tree height in :pt even when there's more root items

The old behavior might be useful but isn't clear enough. I'll
restore it otherwise if needed.

Fix #341

1 files changed, 2 insertions, 1 deletions

diff --git a/src/display/displayable_tree.rs b/src/display/displayable_tree.rs
index 9882042..86361f8 100644
--- a/src/display/displayable_tree.rs
+++ b/src/display/displayable_tree.rs
@@ -49,6 +49,7 @@ impl<'s, 't> DisplayableTree<'s, 't> {
         skin: &'s StyleMap,
         ext_colors: &'s ExtColorMap,
         width: u16,
+        height: u16,
     ) -> DisplayableTree<'s, 't> {
         DisplayableTree {
             tree,
@@ -58,7 +59,7 @@ impl<'s, 't> DisplayableTree<'s, 't> {
                 left: 0,
                 top: 0,
                 width,
-                height: tree.lines.len() as u16,
+                height,
             },
             in_app: false,
         }