Fix panics when resizing (#1408)

* Change buffer.get & buffer.get_mut to return Option, Implement Trait Index & IndexMut to panic

* Prevent FilePicker from drawing outside buffer (rust panics)

* apply suggestion

* add function in_bounds to avoid useless calculations

Co-authored-by: mathis <mathis.brossier@universite-paris-saclay.fr>

1 files changed, 4 insertions, 4 deletions

diff --git a/helix-view/src/graphics.rs b/helix-view/src/graphics.rs
index b8e43ba5..5fd54c8c 100644
--- a/helix-view/src/graphics.rs
+++ b/helix-view/src/graphics.rs
@@ -323,7 +323,7 @@ impl FromStr for Modifier {
 /// ];

 /// let mut buffer = Buffer::empty(Rect::new(0, 0, 1, 1));

 /// for style in &styles {

-///   buffer.get_mut(0, 0).set_style(*style);

+///   buffer[(0, 0)].set_style(*style);

 /// }

 /// assert_eq!(

 ///     Style {

@@ -332,7 +332,7 @@ impl FromStr for Modifier {
 ///         add_modifier: Modifier::BOLD,

 ///         sub_modifier: Modifier::empty(),

 ///     },

-///     buffer.get(0, 0).style(),

+///     buffer[(0, 0)].style(),

 /// );

 /// ```

 ///

@@ -348,7 +348,7 @@ impl FromStr for Modifier {
 /// ];

 /// let mut buffer = Buffer::empty(Rect::new(0, 0, 1, 1));

 /// for style in &styles {

-///   buffer.get_mut(0, 0).set_style(*style);

+///   buffer[(0, 0)].set_style(*style);

 /// }

 /// assert_eq!(

 ///     Style {

@@ -357,7 +357,7 @@ impl FromStr for Modifier {
 ///         add_modifier: Modifier::empty(),

 ///         sub_modifier: Modifier::empty(),

 ///     },

-///     buffer.get(0, 0).style(),

+///     buffer[(0, 0)].style(),

 /// );

 /// ```

 #[derive(Debug, Clone, Copy, PartialEq)]