Merge pull request #59 from phsym/custom_indent

Customize indent in format

src/format.rs

@@ -133,6 +133,8 @@ pub struct TableFormat {
     pad_left: usize,
     /// Right padding
     pad_right: usize,
+    /// Global indentation when rendering the table
+    indent: usize,
 }
 
 impl TableFormat {
@@ -148,6 +150,7 @@ impl TableFormat {
             bottom_sep: None,
             pad_left: 0,
             pad_right: 0,
+            indent: 0,
         }
     }
 
@@ -204,6 +207,16 @@ impl TableFormat {
         }
     }
 
+    /// Set global indentation in spaces used when rendering a table
+    pub fn indent(&mut self, spaces: usize) {
+        self.indent = spaces;
+    }
+
+    /// Get global indentation in spaces used when rendering a table
+    pub fn get_indent(&self) -> usize {
+        self.indent
+    }
+
     /// Print a full line separator to `out`. `col_width` is a slice containing the width of each column
     pub fn print_line_separator<T: Write + ?Sized>(&self,
                                                    out: &mut T,
@@ -212,6 +225,8 @@ impl TableFormat {
                                                    -> Result<(), Error> {
         match *self.get_sep_for_line(pos) {
             Some(ref l) => {
+                //TODO: Wrap this into dedicated function one day
+                try!(out.write_all(&vec![b' '; self.get_indent()]));
                 l._print(out,
                          col_width,
                          self.get_padding(),
@@ -292,12 +307,30 @@ impl FormatBuilder {
         self
     }
 
-    /// Consume this builder and return the generated `TableFormat`
-    pub fn build(self) -> TableFormat {
+    /// Set global indentation in spaces used when rendering a table
+    pub fn indent(mut self, spaces: usize) -> Self {
+        self.format.indent(spaces);
+        self
+    }
+
+    /// Return the generated `TableFormat`
+    pub fn build(&self) -> TableFormat {
         *self.format
     }
 }
 
+impl Into<TableFormat> for FormatBuilder {
+    fn into(self) -> TableFormat {
+        *self.format
+    }
+}
+
+impl From<TableFormat> for FormatBuilder {
+    fn from(fmt: TableFormat) -> Self {
+        FormatBuilder { format: Box::new(fmt) }
+    }
+}
+
 /// Predifined formats. Those constants are lazily evaluated when
 /// the corresponding struct is dereferenced
 pub mod consts {

src/lib.rs

@@ -283,6 +283,11 @@ impl Table {
         *self.format = format;
     }
 
+    /// Get a mutable reference to the internal format
+    pub fn get_format(&mut self) -> &mut TableFormat {
+        &mut self.format
+    }
+
     /// Compute and return the number of column
     pub fn get_column_num(&self) -> usize {
         self.as_ref().get_column_num()
@@ -761,6 +766,24 @@ mod tests {
         assert_eq!(out, table.to_string().replace("\r\n", "\n"));
     }
 
+    #[test]
+    fn indent() {
+        let mut table = Table::new();
+        table.add_row(Row::new(vec![Cell::new("a"), Cell::new("bc"), Cell::new("def")]));
+        table.add_row(Row::new(vec![Cell::new("def"), Cell::new("bc"), Cell::new("a")]));
+        table.set_titles(Row::new(vec![Cell::new("t1"), Cell::new("t2"), Cell::new("t3")]));
+        table.get_format().indent(8);
+        let out = r"        +-----+----+-----+
+        | t1  | t2 | t3  |
+        +=====+====+=====+
+        | a   | bc | def |
+        +-----+----+-----+
+        | def | bc | a   |
+        +-----+----+-----+
+";
+        assert_eq!(table.to_string().replace("\r\n", "\n"), out);
+    }
+
     #[test]
     fn slices() {
         let mut table = Table::new();

src/main.rs

@@ -37,6 +37,7 @@ fn main() {
     println!("Modified : ");
     table.set_element("new_foo", 2, 1).unwrap();
     table.printstd();
+    // table.get_format().indent(8);
 
     // Print a table with some styles on it :
     // FrBybl means : Foregound red, Background yellow, bold, left align
@@ -47,6 +48,7 @@ fn main() {
     let mut table = table!([Frb => "A", "B", "C"], [1, 2, 3, 4], ["A\nBCCZZZ\nDDD", 2, table]);
     table.set_titles(row!["Title 1", "Title 2"]);
     table.set_format(*consts::FORMAT_DEFAULT);
+    table.get_format().indent(8);
     table.printstd();
-    //    println!("{:#?}", table);
+    // println!("{:#?}", table);
 }

src/row.rs

@@ -119,6 +119,8 @@ impl Row {
         where F: Fn(&Cell, &mut T, usize, usize, bool) -> Result<(), Error>
     {
         for i in 0..self.get_height() {
+            //TODO: Wrap this into dedicated function one day
+            try!(out.write_all(&vec![b' '; format.get_indent()]));
             try!(format.print_column_separator(out, ColumnPosition::Left));
             let (lp, rp) = format.get_padding();
             for j in 0..col_width.len() {