Build prompt line

src/cmd_line.rs

@@ -13,6 +13,7 @@ pub struct Level {
 
 impl Level {
     const COLUMNS_STEP: u64 = 50;
+    const ROWS_STEP: u64 = 10;
 
     pub fn from(
         content: Vec<(HashMap<String, Value>, String)>,
@@ -23,21 +24,33 @@ impl Level {
         level: u64,
     ) -> Self {
         //TODO: double width chars
-        //TODO: multiline prompt
 
+        let prompt = prompt_lines(firstc, prompt, indent);
         let content: Vec<(Attrs, Vec<char>)> = content
             .iter()
             .map(|c| (Attrs::from_value_map(&c.0), c.1.chars().collect()))
             .collect();
 
-        let width = content.iter().map(|c| c.1.len()).count() as u64 + indent + 1/*firstc*/;
+        let width = (content.iter().map(|c| c.1.len()).count() + prompt.last().map_or(0, |p| p.len())) as u64;
         let columns = ((width / Level::COLUMNS_STEP) + 1) * Level::COLUMNS_STEP;
+        let rows = ((prompt.len() as u64 / Level::ROWS_STEP) + 1) * Level::ROWS_STEP;
+
+        let model = UiModel::new(rows, columns);
 
-        let model = UiModel::new(1, columns);
         Level { model }
     }
 }
 
+fn prompt_lines(firstc: String, prompt: String, indent: u64) -> Vec<Vec<char>> {
+    if !firstc.is_empty() {
+        vec![firstc.chars().chain((0..indent).map(|_| ' ')).collect()]
+    } else if !prompt.is_empty() {
+        prompt.lines().map(|l| l.chars().collect()).collect()
+    } else {
+        vec![]
+    }
+}
+
 pub struct CmdLine {
     popover: gtk::Popover,
     levels: Vec<Level>,