update block example; add BorderType to exposed widgets API

examples/block.rs

@@ -9,7 +9,7 @@ use termion::screen::AlternateScreen;
 use tui::backend::TermionBackend;
 use tui::layout::{Constraint, Direction, Layout};
 use tui::style::{Color, Modifier, Style};
-use tui::widgets::{Block, Borders, Widget};
+use tui::widgets::{Block, BorderType, Borders, Widget};
 use tui::Terminal;
 
 use crate::util::event::{Event, Events};
@@ -35,7 +35,7 @@ fn main() -> Result<(), failure::Error> {
             Block::default()
                 .borders(Borders::ALL)
                 .title("Main block with round corners")
-                .rounded()
+                .set_border_type(BorderType::Rounded)
                 .render(&mut f, size);
             let chunks = Layout::default()
                 .direction(Direction::Vertical)
@@ -75,7 +75,7 @@ fn main() -> Result<(), failure::Error> {
                     .title("With styled and double borders")
                     .border_style(Style::default().fg(Color::Cyan))
                     .borders(Borders::LEFT | Borders::RIGHT)
-                    .double_border()
+                    .set_border_type(BorderType::Double)
                     .render(&mut f, chunks[1]);
             }
         })?;

src/widgets/mod.rs

@@ -15,6 +15,7 @@ mod tabs;
 
 pub use self::barchart::BarChart;
 pub use self::block::Block;
+pub use self::block::BorderType;
 pub use self::chart::{Axis, Chart, Dataset, Marker};
 pub use self::gauge::Gauge;
 pub use self::list::{List, SelectableList};