new rendering engine

crates/client-domain/src/alignment.rs

@@ -0,0 +1,41 @@
+use domain::{HAlign, VAlign};
+
+#[allow(private_bounds)]
+pub fn align_offset(container: u16, content: u16, align: impl Into<AlignMode>) -> u16 {
+    let mode = align.into();
+    if content >= container {
+        return 0;
+    }
+    let space = container - content;
+    match mode {
+        AlignMode::Start => 0,
+        AlignMode::Center => space / 2,
+        AlignMode::End => space,
+    }
+}
+
+enum AlignMode {
+    Start,
+    Center,
+    End,
+}
+
+impl From<HAlign> for AlignMode {
+    fn from(a: HAlign) -> Self {
+        match a {
+            HAlign::Left => AlignMode::Start,
+            HAlign::Center => AlignMode::Center,
+            HAlign::Right => AlignMode::End,
+        }
+    }
+}
+
+impl From<VAlign> for AlignMode {
+    fn from(a: VAlign) -> Self {
+        match a {
+            VAlign::Top => AlignMode::Start,
+            VAlign::Middle => AlignMode::Center,
+            VAlign::Bottom => AlignMode::End,
+        }
+    }
+}