377 lines
8.5 KiB
Python
377 lines
8.5 KiB
Python
"""µFrame Intermediate Representation — node types for the IR tree.
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Every .uf source parses into a tree of IRNode subclasses. The layout
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engine measures, positions, and paints these nodes into a CharGrid.
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"""
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from __future__ import annotations
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from dataclasses import dataclass, field
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from enum import Enum, auto
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from typing import Any
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# ---------------------------------------------------------------------------
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# Enums
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# ---------------------------------------------------------------------------
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class BorderWeight(Enum):
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LIGHT = auto()
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HEAVY = auto()
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DOUBLE = auto()
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ROUNDED = auto()
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class HeadingLevel(Enum):
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H1 = 1
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H2 = 2
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H3 = 3
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class DividerStyle(Enum):
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LIGHT = auto()
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HEAVY = auto()
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DOUBLE = auto()
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DASH = auto()
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DOT = auto()
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class ListStyle(Enum):
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BULLET = auto()
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DASH = auto()
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NUMBER = auto()
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ARROW = auto()
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class Align(Enum):
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LEFT = auto()
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CENTER = auto()
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RIGHT = auto()
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# ---------------------------------------------------------------------------
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# Style
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# ---------------------------------------------------------------------------
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@dataclass
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class Style:
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"""Visual style attached to any node."""
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fg: str | None = None # 3-digit hex
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bg: str | None = None # 3-digit hex
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bold: bool = False
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italic: bool = False
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underline: bool = False
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align: Align = Align.LEFT
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# ---------------------------------------------------------------------------
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# Inline text spans (parsed from @modifier{} syntax in text content)
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# ---------------------------------------------------------------------------
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@dataclass
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class TextSpan:
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"""A run of text with optional inline styling."""
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text: str
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bold: bool = False
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italic: bool = False
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underline: bool = False
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fg: str | None = None
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bg: str | None = None
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# ---------------------------------------------------------------------------
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# Layout rect — assigned by the layout engine
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# ---------------------------------------------------------------------------
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@dataclass
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class Rect:
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x: int = 0
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y: int = 0
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w: int = 0
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h: int = 0
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# ---------------------------------------------------------------------------
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# Base node
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# ---------------------------------------------------------------------------
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@dataclass
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class IRNode:
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"""Base class for all IR nodes."""
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children: list[IRNode] = field(default_factory=list)
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style: Style = field(default_factory=Style)
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rect: Rect = field(default_factory=Rect)
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source_line: int | None = None
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# Set by measure pass
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min_width: int = 0
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min_height: int = 0
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pref_width: int = 0
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pref_height: int = 0
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# ---------------------------------------------------------------------------
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# Layout nodes
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# ---------------------------------------------------------------------------
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@dataclass
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class Page(IRNode):
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"""Root container. One per .uf file."""
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title: str = ""
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width: int = 64
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@dataclass
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class Box(IRNode):
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"""Bordered panel with optional title."""
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title: str = ""
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weight: BorderWeight = BorderWeight.LIGHT
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@dataclass
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class Row(IRNode):
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"""Horizontal layout — children split available width."""
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gap: int = 1
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@dataclass
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class Col(IRNode):
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"""Explicit column in a row. Width in chars or None (auto)."""
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col_width: int | None = None
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@dataclass
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class Spacer(IRNode):
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"""Vertical whitespace."""
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lines: int = 1
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@dataclass
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class Pad(IRNode):
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"""Inner margin for a container."""
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top: int = 0
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right: int = 0
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bottom: int = 0
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left: int = 0
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# ---------------------------------------------------------------------------
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# Content nodes
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# ---------------------------------------------------------------------------
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@dataclass
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class Heading(IRNode):
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"""Styled heading (levels 1–3)."""
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level: HeadingLevel = HeadingLevel.H1
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text: str = ""
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@dataclass
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class Text(IRNode):
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"""Text content with optional @modifier{} inline styles."""
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content: str = ""
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spans: list[TextSpan] = field(default_factory=list)
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@dataclass
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class Label(IRNode):
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"""Aligned key-value pair."""
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key: str = ""
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value: str = ""
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@dataclass
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class Divider(IRNode):
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"""Full-width horizontal rule."""
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divider_style: DividerStyle = DividerStyle.LIGHT
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@dataclass
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class Link(IRNode):
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"""Clickable link — visual in ASCII, interactive in Micron."""
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display: str = ""
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dest: str = ""
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@dataclass
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class ListNode(IRNode):
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"""Bulleted or numbered list."""
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list_style: ListStyle = ListStyle.BULLET
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@dataclass
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class ListItem(IRNode):
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"""Single entry in a ListNode."""
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content: str = ""
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# ---------------------------------------------------------------------------
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# Placeholder nodes for future phases
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# ---------------------------------------------------------------------------
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@dataclass
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class Gauge(IRNode):
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"""Horizontal bar chart (Phase 4)."""
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label: str = ""
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value: float = 0
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max_val: float = 100
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bar_width: int = 28
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warn: float | None = None
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crit: float | None = None
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@dataclass
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class Sparkline(IRNode):
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"""Braille sparkline (Phase 4)."""
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label: str = ""
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values: list[float] = field(default_factory=list)
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spark_width: int = 20
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@dataclass
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class Status(IRNode):
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"""Status indicator (Phase 4)."""
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label: str = ""
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state: str = "unknown"
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@dataclass
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class Table(IRNode):
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"""Box-drawn table."""
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title: str = ""
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columns: list[tuple[str, int]] = field(default_factory=list) # (name, width)
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rows: list[list[str]] = field(default_factory=list)
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# ---------------------------------------------------------------------------
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# Form nodes
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# ---------------------------------------------------------------------------
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@dataclass
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class Form(IRNode):
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"""Form container grouping interactive fields."""
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form_name: str = ""
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@dataclass
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class Field(IRNode):
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"""Text input field."""
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field_name: str = ""
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field_width: int = 24
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placeholder: str = ""
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@dataclass
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class Password(IRNode):
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"""Masked password field."""
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field_name: str = ""
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field_width: int = 24
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placeholder: str = ""
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@dataclass
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class Radio(IRNode):
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"""Radio button group — options separated by |."""
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group: str = ""
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options: list[str] = field(default_factory=list)
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@dataclass
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class Checkbox(IRNode):
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"""Checkbox field."""
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field_name: str = ""
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checkbox_label: str = ""
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checked: bool = False
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@dataclass
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class FormButton(IRNode):
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"""Submit button — clickable link in Micron."""
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button_label: str = ""
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dest: str = ""
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# ---------------------------------------------------------------------------
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# Dynamic nodes (Phase 7)
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# ---------------------------------------------------------------------------
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class SourceType(Enum):
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SHELL = auto()
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FILE = auto()
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JSON = auto()
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PYTHON = auto()
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RNS = auto()
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PARAM = auto()
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@dataclass
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class Let(IRNode):
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"""Variable assignment: let name = "value" or let name = 1,2,3."""
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var_name: str = ""
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var_value: str = ""
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@dataclass
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class Source(IRNode):
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"""Data source resolved at render time (dynamic pages only)."""
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var_name: str = ""
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source_type: SourceType = SourceType.SHELL
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command: str = ""
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timeout: int = 5
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@dataclass
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class IfBlock(IRNode):
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"""Conditional block: if $var > threshold."""
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condition: str = ""
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# children = the "then" branch
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elif_branches: list[tuple[str, list[IRNode]]] = field(default_factory=list)
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else_children: list[IRNode] = field(default_factory=list)
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@dataclass
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class ForLoop(IRNode):
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"""Iteration: for item in $collection."""
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var_name: str = ""
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iterable: str = ""
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# children = loop body
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@dataclass
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class CacheControl(IRNode):
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"""Cache header: cache 0 (never cache) or cache 300 (5 min)."""
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seconds: int = 0
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@dataclass
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class OnSubmit(IRNode):
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"""Form submission handler: on_submit "form_name"."""
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form_name: str = ""
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# children = handler body
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@dataclass
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class StateDecl(IRNode):
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"""State persistence: state "name" "/path.json"."""
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state_name: str = ""
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path: str = ""
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# ---------------------------------------------------------------------------
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# Components (Phase 8)
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# ---------------------------------------------------------------------------
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@dataclass
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class ComponentDef(IRNode):
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"""Component definition: component name(arg1, arg2)."""
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comp_name: str = ""
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params: list[str] = field(default_factory=list)
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# children = the component body template
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@dataclass
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class ComponentUse(IRNode):
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"""Component instantiation: name "arg1" "arg2"."""
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comp_name: str = ""
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args: list[str] = field(default_factory=list)
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