1 files changed, 131 insertions, 0 deletions
diff --git a/gerbonara/cad/protoserve.py b/gerbonara/cad/protoserve.py
new file mode 100644
index 0000000..0bf9dce
--- /dev/null
+++ b/gerbonara/cad/protoserve.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python
+
+import importlib.resources
+from tempfile import TemporaryDirectory
+from pathlib import Path
+
+from quart import Quart, request, Response
+
+from . import protoboard as pb
+from . import protoserve_data
+from ..utils import MM, Inch
+
+
+def extract_importlib(package):
+    root = TemporaryDirectory()
+
+    stack = [(importlib.resources.files(package), Path(root.name))]
+    while stack:
+        res, out = stack.pop()
+
+        for item in res.iterdir():
+            item_out = out / item.name
+            if item.is_file():
+                item_out.write_bytes(item.read_bytes())
+            else:
+                assert item.is_dir()
+                item_out.mkdir()
+                stack.push((item, item_out))
+
+    return root
+
+static_folder = extract_importlib(protoserve_data)
+app = Quart(__name__, static_folder=static_folder.name)
+
+@app.route('/')
+async def index():
+    return await app.send_static_file('protoserve.html')
+
+def deserialize(obj, unit):
+    pitch_x = float(obj.get('pitch_x', 1.27))
+    pitch_y = float(obj.get('pitch_y', 1.27))
+    clearance = float(obj.get('clearance', 0.2))
+
+    match obj['type']:
+        case 'layout':
+            proportions = [float(child['layout_prop']) for child in obj['children']]
+            content = [deserialize(child, unit) for child in obj['children']]
+            return pb.PropLayout(content, obj['direction'], proportions)
+
+        case 'placeholder':
+            return pb.EmptyProtoArea()
+
+        case 'smd':
+            match obj['pad_shape']:
+                case 'rect':
+                    pad = pb.SMDPad.rect(0, 0, pitch_x-clearance, pitch_y-clearance, paste=False, unit=unit)
+                case 'circle':
+                    pad = pb.SMDPad.circle(0, 0, min(pitch_x, pitch_y)-clearance, paste=False, unit=unit)
+            return pb.PatternProtoArea(pitch_x, pitch_y, obj=pad, unit=unit)
+
+        case 'tht':
+            hole_dia = float(obj['hole_dia'])
+            match obj['plating']:
+                case 'plated':
+                    oneside, plated = False, True
+                case 'nonplated':
+                    oneside, plated = False, False
+                case 'singleside':
+                    oneside, plated = True, False
+
+            match obj['pad_shape']:
+                case 'rect':
+                    pad = pb.THTPad.rect(0, 0, hole_dia, pitch_x-clearance, pitch_y-clearance, paste=False, plated=plated, unit=unit)
+                case 'circle':
+                    pad = pb.THTPad.circle(0, 0, hole_dia, min(pitch_x, pitch_y)-clearance, paste=False, plated=plated, unit=unit)
+                case 'obround':
+                    pad = pb.THTPad.obround(0, 0, hole_dia, pitch_x-clearance, pitch_y-clearance, paste=False, plated=plated, unit=unit)
+
+            if oneside:
+                pad.pad_bottom = None
+
+            return pb.PatternProtoArea(pitch_x, pitch_y, obj=pad, unit=unit)
+
+        case 'manhattan':
+            return pb.PatternProtoArea(pitch_x, pitch_y, obj=pb.ManhattanPads(pitch_x, pitch_y, clearance, unit=unit), unit=unit)
+
+        case 'powered':
+            pitch = float(obj.get('pitch', 2.54))
+            hole_dia = float(obj['hole_dia'])
+            via_drill = float(obj['via_hole_dia'])
+            trace_width = float(obj['trace_width'])
+            return pb.PatternProtoArea(pitch, pitch, pb.PoweredProto(pitch, hole_dia, clearance, via_size=via_drill, trace_width=trace_width, unit=unit), unit=unit)
+
+        case 'flower':
+            pitch = float(obj.get('pitch', 2.54))
+            hole_dia = float(obj['hole_dia'])
+            pattern_dia = float(obj['pattern_dia'])
+            return pb.PatternProtoArea(2*pitch, 2*pitch, pb.THTFlowerProto(pitch, hole_dia, pattern_dia, unit=unit), unit=unit)
+
+        case 'rf':
+            pitch = float(obj.get('pitch', 2.54))
+            hole_dia = float(obj['hole_dia'])
+            via_dia = float(obj['via_dia'])
+            via_drill = float(obj['via_hole_dia'])
+            return pb.PatternProtoArea(pitch, pitch, pb.RFGroundProto(pitch, hole_dia, clearance, via_dia, via_drill, unit=MM), unit=MM)
+
+@app.route('/preview.svg', methods=['POST'])
+async def preview():
+    obj = await request.get_json()
+
+    unit = Inch if obj.get('units' == 'us') else MM
+    w = float(obj.get('width', unit(100, MM)))
+    h = float(obj.get('height', unit(80, MM)))
+    corner_radius = float(obj.get('round_corners', {}).get('radius', unit(1.5, MM)))
+    holes = obj.get('mounting_holes', {})
+    mounting_hole_dia = float(holes.get('diameter', unit(3.2, MM)))
+    mounting_hole_offset = float(holes.get('offset', unit(5, MM)))
+
+    content = deserialize(obj['children'][0], unit)
+
+    board = pb.ProtoBoard(w, h, content,
+                       corner_radius=corner_radius,
+                       mounting_hole_dia=mounting_hole_dia,
+                       mounting_hole_offset=mounting_hole_offset,
+                       unit=unit)
+    return Response(str(board.pretty_svg()), mimetype='image/svg+xml')
+
+
+if __name__ == '__main__':
+    app.run()
+