Change layout properties and improve gauge and sparkline

examples/prototype.rs

@@ -130,25 +130,27 @@ fn draw(terminal: &mut Terminal, app: &App) {
     let ui = Group::default()
         .direction(Direction::Vertical)
         .alignment(Alignment::Left)
-        .chunks(&[Size::Fixed(5), Size::Min(5), Size::Fixed(3)])
+        .chunks(&[Size::Fixed(6), Size::Min(5), Size::Fixed(3)])
         .render(&terminal.area(), |chunks, tree| {
             info!("{:?}", terminal.area());
-            tree.add(Block::default().borders(border::ALL).title("Gauges").render(&chunks[0]));
+            tree.add(Block::default().borders(border::ALL).title("Graphs").render(&chunks[0]));
             tree.add(Group::default()
                 .direction(Direction::Vertical)
                 .alignment(Alignment::Left)
                 .margin(1)
-                .chunks(&[Size::Fixed(1), Size::Fixed(1), Size::Fixed(1)])
+                .chunks(&[Size::Fixed(2), Size::Fixed(2)])
                 .render(&chunks[0], |chunks, tree| {
                     tree.add(Gauge::new()
+                        .block(*Block::default().title("Gauge:"))
                         .percent(app.progress)
                         .render(&chunks[0]));
                     tree.add(Sparkline::new()
+                        .block(*Block::default().title("Sparkline:"))
                         .data(&app.data)
-                        .render(&chunks[2]));
+                        .render(&chunks[1]));
                 }));
             let sizes = if app.show_episodes {
-                vec![Size::Min(20), Size::Min(20)]
+                vec![Size::Min(20), Size::Max(40)]
             } else {
                 vec![Size::Min(20)]
             };

src/buffer.rs

@@ -113,7 +113,7 @@ impl Buffer {
                     cursor = c;
                 }
                 None => {
-                    break;
+                    warn!("Failed to set all string");
                 }
             }
         }

src/layout.rs

@@ -3,7 +3,7 @@ use std::collections::HashMap;
 
 use cassowary::{Solver, Variable, Constraint};
 use cassowary::WeightedRelation::*;
-use cassowary::strength::{WEAK, MEDIUM, REQUIRED};
+use cassowary::strength::{WEAK, REQUIRED};
 
 use buffer::Buffer;
 use widgets::WidgetType;
@@ -118,7 +118,7 @@ pub enum Size {
 ///                        &Direction::Vertical,
 ///                        &Alignment::Left,
 ///                        0,
-///                        &[Size::Fixed(5), Size::Percent(80)]);
+///                        &[Size::Fixed(5), Size::Min(5)]);
 /// }
 ///
 /// ```

src/widgets/block.rs

@@ -33,6 +33,28 @@ impl<'a> Block<'a> {
         self.borders = flag;
         self
     }
+
+    pub fn inner(&self, area: Rect) -> Rect {
+        if area.width < 2 || area.height < 2 {
+            return Rect::default();
+        }
+        let mut inner = area;
+        if self.borders.intersects(border::LEFT) {
+            inner.x += 1;
+            inner.width -= 1;
+        }
+        if self.borders.intersects(border::TOP) || self.title.is_some() {
+            inner.y += 1;
+            inner.height -= 1;
+        }
+        if self.borders.intersects(border::RIGHT) {
+            inner.width -= 1;
+        }
+        if self.borders.intersects(border::BOTTOM) {
+            inner.height -= 1;
+        }
+        inner
+    }
 }
 
 impl<'a> Widget for Block<'a> {
@@ -40,10 +62,6 @@ impl<'a> Widget for Block<'a> {
 
         let mut buf = Buffer::empty(*area);
 
-        if self.borders == border::NONE {
-            return buf;
-        }
-
         if area.width < 2 || area.height < 2 {
             return buf;
         }
@@ -88,7 +106,12 @@ impl<'a> Widget for Block<'a> {
             buf.set_symbol(area.width - 1, area.height - 1, Line::BottomRight.get());
         }
         if let Some(ref title) = self.title {
-            buf.set_string(1, 0, &format!(" {} ", title));
+            let (margin_x, string) = if self.borders.intersects(border::LEFT) {
+                (1, format!(" {} ", title))
+            } else {
+                (0, format!("{}", title))
+            };
+            buf.set_string(margin_x, 0, &string);
         }
         buf
     }

src/widgets/gauge.rs

@@ -49,22 +49,24 @@ impl<'a> Gauge<'a> {
 impl<'a> Widget for Gauge<'a> {
     fn buffer(&self, area: &Rect) -> Buffer {
         let (mut buf, gauge_area) = match self.block {
-            Some(ref b) => (b.buffer(area), area.inner(1)),
+            Some(ref b) => (b.buffer(area), b.inner(*area)),
             None => (Buffer::empty(*area), *area),
         };
         if gauge_area.height < 1 {
             return buf;
         } else {
-            let margin = gauge_area.x - area.x;
+            info!("{:?}{:?}", area, gauge_area);
+            let margin_x = gauge_area.x - area.x;
+            let margin_y = gauge_area.y - area.y;
             let width = (gauge_area.width * self.percent) / 100;
             for i in 0..width {
-                buf.set_bg(margin + i, margin, self.bg);
-                buf.set_fg(margin + i, margin, self.fg);
+                buf.set_bg(margin_x + i, margin_y, self.bg);
+                buf.set_fg(margin_x + i, margin_y, self.fg);
             }
             let percent_string = format!("{}%", self.percent);
             let len = percent_string.len() as u16;
             let middle = gauge_area.width / 2 - len / 2;
-            buf.set_string(middle, margin, &percent_string);
+            buf.set_string(middle, margin_y, &percent_string);
         }
         buf
     }

src/widgets/sparkline.rs

@@ -41,13 +41,14 @@ impl<'a> Sparkline<'a> {
 impl<'a> Widget for Sparkline<'a> {
     fn buffer(&self, area: &Rect) -> Buffer {
         let (mut buf, spark_area) = match self.block {
-            Some(ref b) => (b.buffer(area), area.inner(1)),
+            Some(ref b) => (b.buffer(area), b.inner(*area)),
             None => (Buffer::empty(*area), *area),
         };
         if spark_area.height < 1 {
             return buf;
         } else {
-            let margin = spark_area.x - area.x;
+            let margin_x = spark_area.x - area.x;
+            let margin_y = spark_area.y - area.y;
             match self.data.iter().max() {
                 Some(max_value) => {
                     let max_index = min(spark_area.width as usize, self.data.len());
@@ -70,7 +71,7 @@ impl<'a> Widget for Sparkline<'a> {
                             }
                         })
                         .collect::<String>();
-                    buf.set_string(margin, margin, &line);
+                    buf.set_string(margin_x, margin_y, &line);
                 }
                 None => {}
             }