1j01/textual-paint
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Visualize cell bucketing for debug

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This commit is contained in:
Isaiah Odhner 2023-05-17 19:04:50 -04:00
parent f17b180546
commit 8458ccf3c9
2 changed files with 31 additions and 4 deletions
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1
cspell.json
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@ -28,6 +28,7 @@
"Bresenham",
"Bresenham's",
"cmdpxl",
"dasharray",
"Deutsch",
"DIALOGEX",
"Figlet",

34
src/textual_paint/paint.py
View File

@ -1189,6 +1189,19 @@ class AnsiArtDocument:
"""
import xml.etree.ElementTree as ET
root = ET.fromstring(svg)
def add_debug_marker(x: float, y: float, color: str) -> None:
"""Adds a circle to the SVG at the given position, for debugging."""
# without the namespace, it won't show up!
marker = ET.Element("{http://www.w3.org/2000/svg}circle")
marker.attrib["cx"] = str(x)
marker.attrib["cy"] = str(y)
marker.attrib["r"] = "1"
marker.attrib["fill"] = color
marker.attrib["stroke"] = "black"
marker.attrib["stroke-width"] = "0.1"
root.append(marker)
# Search for rect elements to define the background, and the cell locations.
rects = root.findall(".//{http://www.w3.org/2000/svg}rect")
if len(rects) == 0:
@ -1206,6 +1219,8 @@ class AnsiArtDocument:
rects.remove(rect)
settled = False
print("Ignoring outlier rect: " + ET.tostring(rect, encoding="unicode"))
# For debugging, outline the ignored rect.
rect.attrib["style"] = "stroke:#ff0000;stroke-width:1;stroke-dasharray:1,1;fill:none"
break
else:
break
@ -1247,8 +1262,11 @@ class AnsiArtDocument:
return "#" + hex(r)[2:].zfill(2) + hex(g)[2:].zfill(2) + hex(b)[2:].zfill(2)
for rect in rects:
x = int((float(rect.attrib["x"]) + float(rect.attrib["width"])/2 - min_x) / cell_width)
y = int((float(rect.attrib["y"]) + float(rect.attrib["height"])/2 - min_y) / cell_height)
x = (float(rect.attrib["x"]) + float(rect.attrib["width"])/2 - min_x)
y = (float(rect.attrib["y"]) + float(rect.attrib["height"])/2 - min_y)
add_debug_marker(x, y, "red")
x = int(x / cell_width)
y = int(y / cell_height)
fill = get_fill(rect)
if fill is not None:
@ -1259,8 +1277,12 @@ class AnsiArtDocument:
if len(texts) == 0:
raise ValueError("No text elements found in SVG.")
for text in texts:
x = int((float(text.attrib["x"]) - min_x + 1/2) / cell_width)
y = int((float(text.attrib["y"]) - min_y - 1/2) / cell_height)
x = (float(text.attrib["x"]) - min_x + 1/2)
y = (float(text.attrib["y"]) - min_y - 1/2)
add_debug_marker(x, y, "yellow")
x = int(x / cell_width)
y = int(y / cell_height)
ch = text.text
if ch is None:
tspans = text.findall(".//{http://www.w3.org/2000/svg}tspan")
@ -1281,6 +1303,10 @@ class AnsiArtDocument:
except IndexError:
print("Warning: text element is out of bounds: " + ET.tostring(text, encoding="unicode"))
continue
# For debugging, write the SVG with the ignored rects outlined, and coordinate markers added.
ET.ElementTree(root).write("debug.svg", encoding="unicode")
return document
@staticmethod