Refactor new Rect construction (#575)

* Refactor new Rect construction

Introduces methods that can be chained to construct new Rects
out of pre-existing ones

* Clamp x and y to edges in Rect chop methods

* Rename Rect clipping functions

1 files changed, 1 insertions, 6 deletions

diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs
index b707c092..01f18c71 100644
--- a/helix-view/src/view.rs
+++ b/helix-view/src/view.rs
@@ -83,12 +83,7 @@ impl View {
     pub fn inner_area(&self) -> Rect {
         // TODO: not ideal
         const OFFSET: u16 = 7; // 1 diagnostic + 5 linenr + 1 gutter
-        Rect::new(
-            self.area.x + OFFSET,
-            self.area.y,
-            self.area.width - OFFSET,
-            self.area.height.saturating_sub(1), // -1 for statusline
-        )
+        self.area.clip_left(OFFSET).clip_bottom(1) // -1 for statusline
     }
 
     pub fn ensure_cursor_in_view(&mut self, doc: &Document, scrolloff: usize) {