improved sheet definition

css.py

@@ -0,0 +1,88 @@
+from dataclasses import dataclass
+from typing import Optional, Tuple, List, Union
+import random
+
+
+class Unit():
+    unit = "px"
+    def __init__(self, amount:float):
+        self.amount = amount
+    def __repr__(self) -> str:
+        return f'{self.amount}{self.unit}'
+
+class PX(Unit):
+    pass
+
+class EM(Unit):
+    unit = "em"
+
+class REM(Unit):
+    unit = "rem"
+
+class Cluster():
+    def __init__(self):
+        pass
+    def __repr__(self)->str:
+        #todo: flesh this out / provide overrides for each inheriting class
+        return ""
+
+@dataclass
+class Font(Cluster):
+    family: Optional[str] = None
+    kerning: Optional[str] = None
+    size: Optional[Unit] = None
+
+@dataclass
+class Space(Cluster):
+    top: Optional[Unit] = None
+    right: Optional[Unit] = None
+    bottom: Optional[Unit] = None
+    left: Optional[Unit] = None
+
+@dataclass
+class XForm(Space):
+    width: Optional[Unit] = None
+    height: Optional[Unit] = None
+    angle: Optional[float] = None
+
+@dataclass
+class Size():
+    def __init__(self, minWidth:int = 0):
+        pass
+    def __getitem__(self, keys:Union[Cluster, Tuple[Cluster, ...]]):
+        self.keys = keys
+        return self
+    def __repr__(self) -> str:
+        if isinstance(self.keys, tuple):
+            return f'\n'.join(str(k) for k in self.keys)
+        else:
+            return str(self.keys)
+        
+class Atomic():
+    def __init__(self, *parts:Cluster):
+        self.output:List[str] = []
+        for part in parts:
+            self.output.append(f'max-width({part[0]}px)'+"{"+part[1].render()+"}")
+
+    def __getitem__(self, keys:Tuple[int, *tuple[Cluster, ...]]):
+        self.keys = keys
+        return self
+
+
+### example use:
+print(
+    
+Atomic
+(
+    Font( size=PX(18) ),
+    XForm( left=PX(10) )
+)
+[
+    (
+        512,
+        Font( size=PX(22) ),
+        XForm( left=PX(18) )
+    )
+]
+
+)