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import graphviz
import json
from tempfile import NamedTemporaryFile
import os
from PIL import Image
import platform
import subprocess
def setup_korean_font_env():
"""ํ๊ธ ํฐํธ ํ๊ฒฝ ์ค์ """
CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
FONT_PATH = os.path.join(CURRENT_DIR, 'NanumGothic-Regular.ttf')
# ํฐํธ ํ์ผ ์กด์ฌ ํ์ธ
if not os.path.exists(FONT_PATH):
print(f"[๊ฒฝ๊ณ ] ํ๊ธ ํฐํธ ํ์ผ์ ์ฐพ์ ์ ์์ต๋๋ค: {FONT_PATH}")
return None
# ํ๊ฒฝ ๋ณ์ ์ค์
os.environ['GDFONTPATH'] = CURRENT_DIR
# fonts.conf ์์ฑ
fonts_conf_path = os.path.join(CURRENT_DIR, 'fonts.conf')
fonts_conf_content = f"""<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
<dir>{CURRENT_DIR}</dir>
<cachedir>/tmp/fontconfig-cache</cachedir>
<match target="pattern">
<test name="family">
<string>NanumGothic</string>
</test>
<edit name="family" mode="assign" binding="same">
<string>NanumGothic-Regular</string>
</edit>
</match>
<match target="pattern">
<test name="family">
<string>NanumGothic-Regular</string>
</test>
<edit name="file" mode="assign" binding="same">
<string>{FONT_PATH}</string>
</edit>
</match>
<alias binding="same">
<family>NanumGothic</family>
<default>
<family>NanumGothic-Regular</family>
</default>
</alias>
</fontconfig>"""
with open(fonts_conf_path, 'w', encoding='utf-8') as f:
f.write(fonts_conf_content)
os.environ['FONTCONFIG_FILE'] = fonts_conf_path
os.environ['FONTCONFIG_PATH'] = CURRENT_DIR
return FONT_PATH
# ํฐํธ ์ค์ ์ด๊ธฐํ
FONT_PATH = setup_korean_font_env()
def generate_process_flow_diagram(json_input: str, output_format: str) -> str:
"""
Generates a Process Flow Diagram (Flowchart) from JSON input.
"""
try:
if not json_input.strip():
return "Error: Empty input"
data = json.loads(json_input)
# Validate required top-level keys for a flowchart
if 'start_node' not in data or 'nodes' not in data or 'connections' not in data:
raise ValueError("Missing required fields: 'start_node', 'nodes', or 'connections'")
# Define specific node shapes for flowchart types
node_shapes = {
"process": "box", # Rectangle for processes
"decision": "diamond", # Diamond for decisions
"start": "oval", # Oval for start
"end": "oval", # Oval for end
"io": "parallelogram", # Input/Output
"document": "note", # Document symbol
"default": "box" # Fallback
}
# Graphviz ๋ค์ด์ด๊ทธ๋จ ์์ฑ - ํฌ๊ธฐ์ ์ฌ๋ฐฑ ์กฐ์
dot = graphviz.Digraph(
name='ProcessFlowDiagram',
format='png',
encoding='utf-8',
graph_attr={
'rankdir': 'TB', # Top-to-Bottom flow
'splines': 'ortho', # Straight lines with 90-degree bends
'bgcolor': 'white',
'pad': '0.2', # ์ ์ฒด ํจ๋ฉ ์ค์ (0.5 -> 0.2)
'margin': '0.2', # ๋ง์ง ์ถ๊ฐ
'nodesep': '0.4', # ๋
ธ๋ ๊ฐ ๊ฐ๊ฒฉ ์ค์ (0.6 -> 0.4)
'ranksep': '0.6', # ๋ญํฌ ๊ฐ ๊ฐ๊ฒฉ ์ค์ (0.8 -> 0.6)
'fontname': 'NanumGothic-Regular',
'charset': 'UTF-8',
'dpi': '96', # DPI ์ค์ (150 -> 96)
'size': '10,7.5', # ์ ์ฒด ๊ทธ๋ํ ํฌ๊ธฐ ์ ํ (์ธ์น ๋จ์)
'ratio': 'compress' # ๋น์จ ์์ถ
},
node_attr={
'fontname': 'NanumGothic-Regular',
'fontsize': '12', # ํฐํธ ํฌ๊ธฐ ์ค์ (14 -> 12)
'charset': 'UTF-8',
'height': '0.6', # ๋
ธ๋ ๋์ด ์ง์
'width': '2.0', # ๋
ธ๋ ๋๋น ์ง์
'margin': '0.2,0.1' # ๋
ธ๋ ๋ด๋ถ ๋ง์ง
},
edge_attr={
'fontname': 'NanumGothic-Regular',
'fontsize': '9', # ์ฃ์ง ํฐํธ ํฌ๊ธฐ ์ค์ (10 -> 9)
'charset': 'UTF-8'
}
)
base_color = '#19191a'
fill_color_for_nodes = base_color
font_color_for_nodes = 'white' if base_color == '#19191a' or base_color.lower() in ['#000000', '#19191a'] else 'black'
# Store all nodes by ID for easy lookup
all_defined_nodes = {node['id']: node for node in data['nodes']}
# Add start node explicitly
start_node_id = data['start_node']
dot.node(
start_node_id,
start_node_id,
shape=node_shapes['start'],
style='filled,rounded',
fillcolor='#2196F3',
fontcolor='white',
fontsize='12',
height='0.5',
width='1.8'
)
# Add all other nodes
for node_id, node_info in all_defined_nodes.items():
if node_id == start_node_id:
continue
node_type = node_info.get("type", "default")
shape = node_shapes.get(node_type, "box")
node_label = node_info['label']
# ๋
ธ๋ ํ์
์ ๋ฐ๋ฅธ ํฌ๊ธฐ ์กฐ์
if node_type == 'decision':
height = '0.8'
width = '1.5'
else:
height = '0.6'
width = '2.0'
if node_type == 'end':
dot.node(
node_id,
node_label,
shape=shape,
style='filled,rounded',
fillcolor='#F44336',
fontcolor='white',
fontsize='12',
height='0.5',
width='1.8'
)
else:
dot.node(
node_id,
node_label,
shape=shape,
style='filled,rounded',
fillcolor=fill_color_for_nodes,
fontcolor=font_color_for_nodes,
fontsize='12',
height=height,
width=width
)
# Add connections (edges)
for connection in data['connections']:
dot.edge(
connection['from'],
connection['to'],
label=connection.get('label', ''),
color='#4a4a4a',
fontcolor='#4a4a4a',
fontsize='9'
)
# PNG๋ก ์ง์ ๋ ๋๋ง (ํฌ๊ธฐ ์กฐ์ ๋จ)
with NamedTemporaryFile(delete=False, suffix=f'.{output_format}') as tmp:
dot.render(tmp.name, format=output_format, cleanup=True)
png_path = f"{tmp.name}.{output_format}"
# ์์ฑ๋ ์ด๋ฏธ์ง๋ฅผ PIL๋ก ์ด์ด์ ํฌ๊ธฐ ํ์ธ ๋ฐ ์กฐ์
from PIL import Image
with Image.open(png_path) as img:
width, height = img.size
print(f"[ํ๋ก์ธ์ค ํ๋ก์ฐ] ์์ฑ๋ ์ด๋ฏธ์ง ํฌ๊ธฐ: {width}x{height}")
# ์ด๋ฏธ์ง๊ฐ ๋๋ฌด ํฌ๋ฉด ๋ฆฌ์ฌ์ด์ฆ
max_width = 1200
max_height = 900
if width > max_width or height > max_height:
# ๋น์จ ์ ์งํ๋ฉด์ ๋ฆฌ์ฌ์ด์ฆ
ratio = min(max_width/width, max_height/height)
new_width = int(width * ratio)
new_height = int(height * ratio)
img_resized = img.resize((new_width, new_height), Image.Resampling.LANCZOS)
# ์ฌ๋ฐฑ ์ถ๊ฐํ์ฌ ์ค์ ์ ๋ ฌ
final_img = Image.new('RGB', (max_width, max_height), 'white')
x = (max_width - new_width) // 2
y = (max_height - new_height) // 2
final_img.paste(img_resized, (x, y))
# ์๋ก์ด ํ์ผ๋ก ์ ์ฅ
new_path = png_path.replace('.png', '_resized.png')
final_img.save(new_path)
os.unlink(png_path) # ์๋ณธ ์ญ์
return new_path
return png_path
except json.JSONDecodeError:
return "Error: Invalid JSON format"
except Exception as e:
return f"Error: {str(e)}"
def generate_process_flow_for_ppt(topic: str, context: str, style: str = "Business Workflow") -> Image.Image:
"""
PPT ์์ฑ๊ธฐ์์ ์ฌ์ฉํ ํ๋ก์ธ์ค ํ๋ก์ฐ ๋ค์ด์ด๊ทธ๋จ ์์ฑ
"""
print(f"[ํ๋ก์ธ์ค ํ๋ก์ฐ] ์์ฑ ์์ - ์ฃผ์ : {topic}, ์ปจํ
์คํธ: {context}")
# ํ๊ธ ํฐํธ ์ฌ์ค์ (๋งค๋ฒ ํ์ธ)
setup_korean_font_env()
# ์ปจํ
์คํธ ๋ถ์ํ์ฌ ์ ์ ํ ํ๋ก์ธ์ค ํ๋ก์ฐ JSON ์์ฑ
context_lower = context.lower()
# ๋
ธ๋ ์๋ฅผ ์ค์ด๊ณ ๋ ์ด๋ธ์ ์งง๊ฒ ๋ง๋ค์ด ๊ณต๊ฐ ์ ์ฝ
if "ํ๋ก์ ํธ" in context or "project" in context_lower:
flow_json = {
"start_node": "์์",
"nodes": [
{"id": "plan", "label": "๊ธฐํ", "type": "process"},
{"id": "design", "label": "์ค๊ณ", "type": "process"},
{"id": "develop", "label": "๊ฐ๋ฐ", "type": "process"},
{"id": "test", "label": "ํ
์คํธ", "type": "decision"},
{"id": "deploy", "label": "๋ฐฐํฌ", "type": "process"},
{"id": "end", "label": "์๋ฃ", "type": "end"}
],
"connections": [
{"from": "์์", "to": "plan", "label": ""},
{"from": "plan", "to": "design", "label": ""},
{"from": "design", "to": "develop", "label": ""},
{"from": "develop", "to": "test", "label": ""},
{"from": "test", "to": "deploy", "label": "ํต๊ณผ"},
{"from": "test", "to": "develop", "label": "์์ "},
{"from": "deploy", "to": "end", "label": ""}
]
}
elif "์๋" in context or "๊ธฐ๋ฅ" in context:
flow_json = {
"start_node": "์์",
"nodes": [
{"id": "input", "label": "์
๋ ฅ", "type": "io"},
{"id": "validate", "label": "๊ฒ์ฆ", "type": "decision"},
{"id": "process", "label": "์ฒ๋ฆฌ", "type": "process"},
{"id": "output", "label": "์ถ๋ ฅ", "type": "io"},
{"id": "end", "label": "์ข
๋ฃ", "type": "end"}
],
"connections": [
{"from": "์์", "to": "input", "label": ""},
{"from": "input", "to": "validate", "label": ""},
{"from": "validate", "to": "process", "label": "์ ํจ"},
{"from": "validate", "to": "input", "label": "์ฌ์
๋ ฅ"},
{"from": "process", "to": "output", "label": ""},
{"from": "output", "to": "end", "label": ""}
]
}
else:
# ๊ธฐ๋ณธ ํ๋ก์ธ์ค ํ๋ก์ฐ (๋ ๊ฐ๋จํ๊ฒ)
flow_json = {
"start_node": "์์",
"nodes": [
{"id": "analyze", "label": "๋ถ์", "type": "process"},
{"id": "plan", "label": "๊ณํ", "type": "process"},
{"id": "execute", "label": "์คํ", "type": "process"},
{"id": "check", "label": "๊ฒํ ", "type": "decision"},
{"id": "complete", "label": "์๋ฃ", "type": "end"}
],
"connections": [
{"from": "์์", "to": "analyze", "label": ""},
{"from": "analyze", "to": "plan", "label": ""},
{"from": "plan", "to": "execute", "label": ""},
{"from": "execute", "to": "check", "label": ""},
{"from": "check", "to": "complete", "label": "์น์ธ"},
{"from": "check", "to": "plan", "label": "์์ "}
]
}
# JSON์ ๋ฌธ์์ด๋ก ๋ณํ
json_str = json.dumps(flow_json, ensure_ascii=False)
print(f"[ํ๋ก์ธ์ค ํ๋ก์ฐ] JSON ์์ฑ ์๋ฃ")
# ํ๋ก์ธ์ค ํ๋ก์ฐ ๋ค์ด์ด๊ทธ๋จ ์์ฑ
png_path = generate_process_flow_diagram(json_str, 'png')
if png_path.startswith("Error:"):
print(f"[ํ๋ก์ธ์ค ํ๋ก์ฐ] ์์ฑ ์คํจ: {png_path}")
# ์๋ฌ ๋ฐ์ ์ ๊ธฐ๋ณธ ์ด๋ฏธ์ง ๋ฐํ
from PIL import ImageDraw, ImageFont
img = Image.new('RGB', (1200, 900), 'white')
draw = ImageDraw.Draw(img)
try:
if FONT_PATH and os.path.exists(FONT_PATH):
font = ImageFont.truetype(FONT_PATH, 20)
else:
font = ImageFont.load_default()
except:
font = ImageFont.load_default()
draw.text((600, 450), "ํ๋ก์ธ์ค ํ๋ก์ฐ ์์ฑ ์คํจ", fill='red', anchor='mm', font=font)
return img
print(f"[ํ๋ก์ธ์ค ํ๋ก์ฐ] PNG ์์ฑ ์ฑ๊ณต: {png_path}")
# PNG ํ์ผ์ PIL Image๋ก ๋ณํ
with Image.open(png_path) as img:
img_copy = img.copy()
# ์์ ํ์ผ ์ญ์
try:
os.unlink(png_path)
except:
pass
return img_copy |