1 files changed, 27 insertions, 5 deletions
diff --git a/src/output/mod.rs b/src/output/mod.rs
index 277c69e..14b4f15 100644
--- a/src/output/mod.rs
+++ b/src/output/mod.rs
@@ -1,6 +1,3 @@
-use crate::output::file_name::FileStyle;
-use crate::style::Colours;
-
 pub use self::cell::{TextCell, TextCellContents, DisplayWidth};
 pub use self::escape::escape;
 
@@ -23,8 +20,8 @@ mod tree;
 #[derive(Debug)]
 pub struct View {
     pub mode: Mode,
-    pub colours: Colours,
-    pub style: FileStyle,
+    pub width: TerminalWidth,
+    pub file_style: file_name::Options,
 }
 
 
@@ -37,3 +34,28 @@ pub enum Mode {
     GridDetails(grid_details::Options),
     Lines(lines::Options),
 }
+
+
+/// The width of the terminal requested by the user.
+#[derive(PartialEq, Debug, Copy, Clone)]
+pub enum TerminalWidth {
+
+    /// The user requested this specific number of columns.
+    Set(usize),
+
+    /// Look up the terminal size at runtime.
+    Automatic,
+}
+
+impl TerminalWidth {
+    pub fn actual_terminal_width(self) -> Option<usize> {
+        // All of stdin, stdout, and stderr could not be connected to a
+        // terminal, but we’re only interested in stdout because it’s
+        // where the output goes.
+
+        match self {
+            Self::Set(width)  => Some(width),
+            Self::Automatic   => term_size::dimensions_stdout().map(|t| t.0),
+        }
+    }
+}