bendns' repos / gracilaria
A simple CPU rendered GUI IDE experience.
Diffstat (limited to 'src/rnd/cell_buffer.rs')
-rw-r--r--src/rnd/cell_buffer.rs35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/rnd/cell_buffer.rs b/src/rnd/cell_buffer.rs
new file mode 100644
index 0000000..2ac7e62
--- /dev/null
+++ b/src/rnd/cell_buffer.rs
@@ -0,0 +1,35 @@
+use std::ops::Deref;
+
+use dsb::Cell;
+
+#[derive(serde::Serialize, serde::Deserialize)]
+pub struct CellBuffer {
+ pub c: usize,
+ pub vo: usize,
+ pub cells: Box<[Cell]>,
+}
+impl std::fmt::Debug for CellBuffer {
+ fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+ f.debug_struct("CellBuffer")
+ .field("c", &self.c)
+ .field("vo", &self.vo)
+ .field("cells", &self.cells.len())
+ .finish()
+ }
+}
+impl Deref for CellBuffer {
+ type Target = [Cell];
+
+ fn deref(&self) -> &Self::Target {
+ &self.cells
+ }
+}
+
+impl CellBuffer {
+ pub fn displayable(&self, r: usize) -> &[Cell] {
+ &self[self.vo * self.c..((self.vo + r) * self.c).min(self.len())]
+ }
+ pub fn l(&self) -> usize {
+ self.len() / self.c
+ }
+}