1 files changed, 0 insertions, 173 deletions
diff --git a/src/window/page_state.rs b/src/window/page_state.rs
deleted file mode 100644
index 4556d72..0000000
--- a/src/window/page_state.rs
+++ /dev/null
@@ -1,173 +0,0 @@
-#[derive(Clone, Debug)]
-pub struct JoshutoPageState {
-    pub start: usize,
-    pub end: usize,
-}
-
-impl JoshutoPageState {
-    pub fn update_page_state(
-        &mut self,
-        index: usize,
-        win_rows: i32,
-        vec_len: usize,
-        offset: usize,
-    ) {
-        if self.end != self.start + win_rows as usize {
-            self.end = self.start + win_rows as usize;
-        }
-        if self.end > vec_len {
-            self.end = vec_len
-        }
-
-        if self.start + offset >= index {
-            self.start = if index as usize <= offset {
-                0
-            } else {
-                index as usize - offset
-            };
-            self.end = if self.start + win_rows as usize >= vec_len {
-                vec_len
-            } else {
-                self.start + win_rows as usize
-            };
-            self.start = if self.end <= win_rows as usize {
-                0
-            } else {
-                self.end - win_rows as usize
-            };
-        }
-        if self.end <= index + offset {
-            self.end = if index as usize + offset >= vec_len {
-                vec_len
-            } else {
-                index as usize + offset
-            };
-            self.start = if self.end <= win_rows as usize {
-                0
-            } else {
-                self.end - win_rows as usize
-            };
-            self.end = if self.start + win_rows as usize >= vec_len {
-                vec_len
-            } else {
-                self.start + win_rows as usize
-            };
-        }
-    }
-}
-
-impl std::default::Default for JoshutoPageState {
-    fn default() -> Self {
-        JoshutoPageState {
-            start: usize::default(),
-            end: usize::default(),
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    #[test]
-    fn shorter_than_viewable_region() {
-        let mut page_state = JoshutoPageState::new();
-        let index = 5;
-        let win_rows = 37;
-        let vec_len = 12;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(0, page_state.start);
-        assert_eq!(12, page_state.end);
-        let index = 30;
-        let win_rows = 37;
-        let vec_len = 12;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(0, page_state.start);
-        assert_eq!(12, page_state.end);
-    }
-    #[test]
-    fn test_01() {
-        let mut page_state = JoshutoPageState::new();
-        let index = 3;
-        let win_rows = 25;
-        let vec_len = 40;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(0, page_state.start);
-        assert_eq!(25, page_state.end);
-    }
-    #[test]
-    fn test_02() {
-        let mut page_state = JoshutoPageState::new();
-        let index = 12;
-        let win_rows = 25;
-        let vec_len = 40;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(0, page_state.start);
-        assert_eq!(25, page_state.end);
-    }
-    #[test]
-    fn test_inside_top_offset() {
-        let mut page_state = JoshutoPageState::new();
-        page_state.start = 10;
-        let index = 12;
-        let win_rows = 25;
-        let vec_len = 40;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(6, page_state.start);
-        assert_eq!(31, page_state.end);
-    }
-    #[test]
-    fn test_inside_bottom_offset() {
-        let mut page_state = JoshutoPageState::new();
-        page_state.start = 36;
-        let index = 34;
-        let win_rows = 25;
-        let vec_len = 40;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(15, page_state.start);
-        assert_eq!(40, page_state.end);
-    }
-    #[test]
-    fn test_small_size() {
-        let mut page_state = JoshutoPageState::new();
-        let index = 3;
-        let win_rows = 6;
-        let vec_len = 6;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(0, page_state.start);
-        assert_eq!(6, page_state.end);
-        let index = 0;
-        let win_rows = 6;
-        let vec_len = 6;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(0, page_state.start);
-        assert_eq!(6, page_state.end);
-        let index = 6;
-        let win_rows = 6;
-        let vec_len = 6;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(0, page_state.start);
-        assert_eq!(6, page_state.end);
-    }
-    #[test]
-    fn test_negative() {
-        let mut page_state = JoshutoPageState::new();
-        page_state.start = 10;
-        page_state.end = 5;
-        let index = 7;
-        let win_rows = 30;
-        let vec_len = 35;
-        let offset = 6;
-        page_state.update_page_state(index, win_rows, vec_len, offset);
-        assert_eq!(1, page_state.start);
-        assert_eq!(31, page_state.end);
-    }
-}