import string import math from .sexp import * from .base_types import * from .primitives import * from ... import graphic_objects as go from ... import apertures as ap from ...newstroke import Newstroke from ...utils import rotate_point, MM @sexp_type('layer') class TextLayer: layer: str = '' knockout: Flag() = False @sexp_type('gr_text') class Text: text: str = '' at: AtPos = field(default_factory=AtPos) layer: TextLayer = field(default_factory=TextLayer) tstamp: Timestamp = None effects: TextEffect = field(default_factory=TextEffect) def render(self, variables={}): if not self.effects or self.effects.hide or not self.effects.font: return font = Newstroke.load() line_width = self.effects.font.thickness text = string.Template(self.text).safe_substitute(variables) strokes = list(font.render(text, size=self.effects.font.size.y)) min_x = min(x for st in strokes for x, y in st) min_y = min(y for st in strokes for x, y in st) max_x = max(x for st in strokes for x, y in st) max_y = max(y for st in strokes for x, y in st) w = max_x - min_x h = max_y - min_y offx = -min_x + { None: -w/2, Atom.right: -w, Atom.left: 0 }[self.effects.justify.h if self.effects.justify else None] offy = { None: self.effects.font.size.y/2, Atom.top: self.effects.font.size.y, Atom.bottom: 0 }[self.effects.justify.v if self.effects.justify else None] aperture = ap.CircleAperture(line_width or 0.2, unit=MM) for stroke in strokes: out = [] for x, y in stroke: x, y = x+offx, y+offy x, y = rotate_point(x, y, math.radians(self.at.rotation or 0)) x, y = x+self.at.x, y+self.at.y out.append((x, y)) for p1, p2 in zip(out[:-1], out[1:]): yield go.Line(*p1, *p2, aperture=aperture, unit=MM) @sexp_type('gr_text_box') class TextBox: locked: Flag() = False text: str = '' start: Named(XYCoord) = None end: Named(XYCoord) = None pts: PointList = field(default_factory=PointList) angle: OmitDefault(Named(float)) = 0.0 layer: Named(str) = "" tstamp: Timestamp = None effects: TextEffect = field(default_factory=TextEffect) stroke: Stroke = field(default_factory=Stroke) render_cache: RenderCache = None def render(self, variables={}): text = string.Template(self.text).safe_substitute(variables) if text != self.text: raise ValueError('Rendering of vector font text with variables not yet supported') if not render_cache or not render_cache.polygons: raise ValueError('Vector font text with empty render cache') for poly in render_cache.polygons: reg = go.Region([(p.x, p.y) for p in poly.pts.xy], unit=MM) if self.stroke: if self.stroke.type not in (None, Atom.default, Atom.solid): raise ValueError('Dashed strokes are not supported on vector text') yield from reg.outline_objects(aperture=ap.CircleAperture(self.stroke.width, unit=MM)) yield reg @sexp_type('gr_line') class Line: start: Rename(XYCoord) = None end: Rename(XYCoord) = None angle: Named(float) = None # wat layer: Named(str) = None width: Named(float) = None tstamp: Timestamp = None def render(self, variables=None): if self.angle: raise NotImplementedError('Angles on lines are not implemented. Please raise an issue and provide an example file.') aperture = ap.CircleAperture(self.width, unit=MM) yield go.Line(self.start.x, self.start.y, self.end.x, self.end.y, aperture=aperture, unit=MM) @sexp_type('fill') class FillMode: # Needed for compatibility with weird files fill: AtomChoice(Atom.solid, Atom.yes, Atom.no, Atom.none) = False @classmethod def __map__(self, obj, parent=None): return obj[1] in (Atom.solid, Atom.yes) @classmethod def __sexp__(self, value): yield [Atom.fill, Atom.solid if value else Atom.none] @sexp_type('gr_rect') class Rectangle: start: Rename(XYCoord) = None end: Rename(XYCoord) = None layer: Named(str) = None width: Named(float) = None fill: FillMode = False tstamp: Timestamp = None def render(self, variables=None): rect = go.Region.from_rectangle(self.start.x, self.start.y, self.end.x-self.start.x, self.end.y-self.start.y, unit=MM) if self.fill: yield rect if self.width: yield from rect.outline_objects(aperture=ap.CircleAperture(self.width, unit=MM)) @sexp_type('gr_circle') class Circle: center: Rename(XYCoord) = None end: Rename(XYCoord) = None layer: Named(str) = None width: Named(float) = None fill: FillMode = False tstamp: Timestamp = None def render(self, variables=None): r = math.dist((self.center.x, self.center.y), (self.end.x, self.end.y)) aperture = ap.CircleAperture(self.width or 0, unit=MM) arc = go.Arc.from_circle(self.center.x, self.center.y, r, aperture=aperture, unit=MM) if self.width: yield arc if self.fill: yield arc.to_region() @sexp_type('gr_arc') class Arc: start: Rename(XYCoord) = None mid: Rename(XYCoord) = None end: Rename(XYCoord) = None layer: Named(str) = None width: Named(float) = None tstamp: Timestamp = None def render(self, variables=None): if not self.width: return cx, cy = self.mid.x, self.mid.y x1, y1 = self.start.x, self.start.y x2, y2 = self.end.x, self.end.y yield go.Arc(x1, y1, x2, y2, cx-x1, cy-y1, aperture=ap.CircleAperture(self.width or 0, unit=MM), clockwise=True, unit=MM) @sexp_type('gr_poly') class Polygon: pts: PointList = field(default_factory=PointList) layer: Named(str) = None width: Named(float) = None fill: FillMode = True tstamp: Timestamp = None def render(self, variables=None): reg = go.Region([(pt.x, pt.y) for pt in self.pts.xy], unit=MM) if self.width and self.width >= 0.005: yield from reg.outline_objects(aperture=ap.CircleAperture(self.width, unit=MM)) if self.fill: yield reg @sexp_type('gr_curve') class Curve: pts: PointList = field(default_factory=PointList) layer: Named(str) = None width: Named(float) = None tstamp: Timestamp = None def render(self, variables=None): raise NotImplementedError('Bezier rendering is not yet supported. Please raise an issue and provide an example file.') @sexp_type('gr_bbox') class AnnotationBBox: start: Rename(XYCoord) = None end: Rename(XYCoord) = None def render(self, variables=None): return []