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from pathlib import Path
import gradio as gr
import modules.scripts as scripts
from modules.ui_components import ToolButton
from math import gcd
aspect_ratios_dir = scripts.basedir()
calculator_symbol = "\U0001F5A9"
switch_values_symbol = "\U000021C5"
get_dimensions_symbol = "\u2B07\ufe0f"
get_image_dimensions_symbol = "\U0001F5BC"
class ResButton(ToolButton):
def __init__(self, res=(512, 512), **kwargs):
super().__init__(**kwargs)
self.w, self.h = res
def reset(self):
return [self.w, self.h]
class ARButton(ToolButton):
def __init__(self, ar=1.0, **kwargs):
super().__init__(**kwargs)
self.ar = ar
def apply(self, w, h):
if self.ar > 1.0: # fix height, change width
w = self.ar * h
elif self.ar < 1.0: # fix width, change height
h = w / self.ar
else: # set minimum dimension to both
min_dim = min([w, h])
w, h = min_dim, min_dim
return list(map(round, [w, h]))
def reset(self, w, h):
return [self.res, self.res]
def parse_aspect_ratios_file(filename):
labels, values, comments = [], [], []
file = Path(aspect_ratios_dir, filename)
if not file.exists():
return labels, values, comments
with open(file, "r", encoding="utf-8") as f:
lines = f.readlines()
if not lines:
return labels, values, comments
for line in lines:
if line.startswith("#"):
continue
if ',' not in line:
continue
try:
label, value = line.strip().split(",")
comment = ""
if "#" in value:
value, comment = value.split("#")
except ValueError:
print(f"skipping badly formatted line in aspect ratios file: {line}")
continue
labels.append(label)
values.append(eval(value))
comments.append(comment)
return labels, values, comments
def parse_resolutions_file(filename):
labels, values, comments = [], [], []
file = Path(aspect_ratios_dir, filename)
if not file.exists():
return labels, values, comments
with open(file, "r", encoding="utf-8") as f:
lines = f.readlines()
if not lines:
return labels, values, comments
for line in lines:
if line.startswith("#"):
continue
if ',' not in line:
continue
try:
label, width, height = line.strip().split(",")
comment = ""
if "#" in height:
height, comment = height.split("#")
except ValueError:
print(f"skipping badly formatted line in resolutions file: {line}")
continue
resolution = (width, height)
labels.append(label)
values.append(resolution)
comments.append(comment)
return labels, values, comments
# TODO: write a generic function handling both cases
def write_aspect_ratios_file(filename):
aspect_ratios = [
"1:1, 1.0 # 1:1 ratio based on minimum dimension\n",
"3:2, 3/2 # Set width based on 3:2 ratio to height\n",
"4:3, 4/3 # Set width based on 4:3 ratio to height\n",
"16:9, 16/9 # Set width based on 16:9 ratio to height",
]
with open(filename, "w", encoding="utf-8") as f:
f.writelines(aspect_ratios)
def write_resolutions_file(filename):
resolutions = [
"1, 512, 512 # 1:1 square\n",
"2, 768, 512 # 3:2 landscape\n",
"3, 403, 716 # 9:16 portrait",
]
with open(filename, "w", encoding="utf-8") as f:
f.writelines(resolutions)
def write_js_titles_file(button_titles):
filename = Path(aspect_ratios_dir, "javascript", "button_titles.js")
content = [
"// Do not put custom titles here. This file is overwritten each time the WebUI is started.\n"
]
content.append("ar_button_titles = {\n")
counter = 0
while counter < len(button_titles[0]):
content.append(
f' "{button_titles[0][counter]}" : "{button_titles[1][counter]}",\n'
)
counter = counter + 1
content.append("}")
with open(filename, "w", encoding="utf-8") as f:
f.writelines(content)
def get_reduced_ratio(n, d):
n, d = list(map(int, (n, d)))
if n == d:
return "1:1"
if n < d:
div = gcd(d, n)
else:
div = gcd(n, d)
w = int(n) // div
h = int(d) // div
if w == 8 and h == 5:
w = 16
h = 10
return f"{w}:{h}"
def solve_aspect_ratio(w, h, n, d):
if w != 0 and w:
return round(w / (n / d))
elif h != 0 and h:
return round(h * (n / d))
else:
return 0
class AspectRatioScript(scripts.Script):
def read_aspect_ratios(self):
ar_file = Path(aspect_ratios_dir, "aspect_ratios.txt")
if not ar_file.exists():
write_aspect_ratios_file(ar_file)
(
self.aspect_ratio_labels,
aspect_ratios,
self.aspect_ratio_comments,
) = parse_aspect_ratios_file("aspect_ratios.txt")
self.aspect_ratios = list(map(float, aspect_ratios))
# TODO: check for duplicates
# TODO: check for invalid values
# TODO: use comments as tooltips
# see https://github.com/alemelis/sd-webui-ar/issues/5
def read_resolutions(self):
res_file = Path(aspect_ratios_dir, "resolutions.txt")
if not res_file.exists():
write_resolutions_file(res_file)
self.res_labels, res, self.res_comments = parse_resolutions_file(
"resolutions.txt"
)
self.res = [list(map(int, r)) for r in res]
def title(self):
return "Aspect Ratio picker"
def show(self, is_img2img):
return scripts.AlwaysVisible
def ui(self, is_img2img):
with gr.Column(
elem_id=f'{"img" if is_img2img else "txt"}2img_container_aspect_ratio'
):
self.read_aspect_ratios()
with gr.Row(
elem_id=f'{"img" if is_img2img else "txt"}2img_row_aspect_ratio'
):
gr.HTML(
visible=True,
elem_id="arc_empty_space",
)
# Aspect Ratio buttons
btns = [
ARButton(ar=ar, value=label)
for ar, label in zip(
self.aspect_ratios,
self.aspect_ratio_labels,
)
]
with contextlib.suppress(AttributeError):
for b in btns:
if is_img2img:
resolution = [self.i2i_w, self.i2i_h]
else:
resolution = [self.t2i_w, self.t2i_h]
b.click(
b.apply,
inputs=resolution,
outputs=resolution,
)
self.read_resolutions()
with gr.Row(
elem_id=f'{"img" if is_img2img else "txt"}2img_row_resolutions'
):
# Toggle calculator display button
arc_show_calculator = gr.Button(
value="Calc",
visible=True,
variant="secondary",
elem_id="arc_show_calculator_button",
)
arc_hide_calculator = gr.Button(
value="Calc",
visible=False,
variant="primary",
elem_id="arc_hide_calculator_button",
)
btns = [
ResButton(res=res, value=label)
for res, label in zip(self.res, self.res_labels)
]
with contextlib.suppress(AttributeError):
for b in btns:
if is_img2img:
resolution = [self.i2i_w, self.i2i_h]
else:
resolution = [self.t2i_w, self.t2i_h]
b.click(
b.reset,
outputs=resolution,
)
# Write button_titles.js with labels and comments read from aspect ratios and resolutions files
button_titles = [self.aspect_ratio_labels + self.res_labels]
button_titles.append(self.aspect_ratio_comments + self.res_comments)
write_js_titles_file(button_titles)
# dummy components needed for JS function
dummy_text1 = gr.Text(visible=False)
dummy_text2 = gr.Text(visible=False)
dummy_text3 = gr.Text(visible=False)
dummy_text4 = gr.Text(visible=False)
# Aspect Ratio Calculator
with gr.Column(
visible=False, variant="panel", elem_id="arc_panel"
) as arc_panel:
arc_title_heading = gr.Markdown(value="#### Aspect Ratio Calculator")
with gr.Row():
with gr.Column(min_width=150):
arc_width1 = gr.Number(label="Width 1")
arc_height1 = gr.Number(label="Height 1")
with gr.Column(min_width=150):
arc_desired_width = gr.Number(label="Width 2")
arc_desired_height = gr.Number(label="Height 2")
with gr.Column(min_width=150):
arc_ar_display = gr.Markdown(value="Aspect Ratio:")
with gr.Row(
elem_id=f'{"img" if is_img2img else "txt"}2img_arc_tool_buttons'
):
# Switch resolution values button
arc_swap = ToolButton(value=switch_values_symbol)
arc_swap.click(
lambda w, h, w2, h2: (h, w, h2, w2),
inputs=[
arc_width1,
arc_height1,
arc_desired_width,
arc_desired_height,
],
outputs=[
arc_width1,
arc_height1,
arc_desired_width,
arc_desired_height,
],
)
with contextlib.suppress(AttributeError):
# For img2img tab
if is_img2img:
# Get slider dimensions button
resolution = [self.i2i_w, self.i2i_h]
arc_get_img2img_dim = ToolButton(
value=get_dimensions_symbol
)
arc_get_img2img_dim.click(
lambda w, h: (w, h),
inputs=resolution,
outputs=[arc_width1, arc_height1],
)
# Javascript function to select image element from current img2img tab
current_tab_image = """
function current_tab_image(...args) {
const tab_index = get_img2img_tab_index();
// Get current tab's image (on Batch tab, use image from img2img tab)
if (tab_index == 5) {
image = args[0];
} else {
image = args[tab_index];
}
// On Inpaint tab, select just the image and drop the mask
if (tab_index == 2 && image !== null) {
image = image["image"];
}
return [image, null, null, null, null];
}
"""
# Get image dimensions
def get_dims(
img: list,
dummy_text1,
dummy_text2,
dummy_text3,
dummy_text4,
):
if img:
width = img.size[0]
height = img.size[1]
return width, height
else:
return 0, 0
# Get image dimensions button
arc_get_image_dim = ToolButton(
value=get_image_dimensions_symbol
)
arc_get_image_dim.click(
fn=get_dims,
inputs=self.image,
outputs=[arc_width1, arc_height1],
_js=current_tab_image,
)
else:
# For txt2img tab
# Get slider dimensions button
resolution = [self.t2i_w, self.t2i_h]
arc_get_txt2img_dim = ToolButton(
value=get_dimensions_symbol
)
arc_get_txt2img_dim.click(
lambda w, h: (w, h),
inputs=resolution,
outputs=[arc_width1, arc_height1],
)
# Update aspect ratio display on change
arc_width1.change(
lambda w, h: (f"Aspect Ratio: **{get_reduced_ratio(w,h)}**"),
inputs=[arc_width1, arc_height1],
outputs=[arc_ar_display],
)
arc_height1.change(
lambda w, h: (f"Aspect Ratio: **{get_reduced_ratio(w,h)}**"),
inputs=[arc_width1, arc_height1],
outputs=[arc_ar_display],
)
with gr.Row():
# Calculate and Apply buttons
arc_calc_height = gr.Button(value="Calculate Height",scale=1)
arc_calc_height.click(
lambda w2, w1, h1: (solve_aspect_ratio(w2, 0, w1, h1)),
inputs=[arc_desired_width, arc_width1, arc_height1],
outputs=[arc_desired_height],
)
arc_calc_width = gr.Button(value="Calculate Width", scale=1)
arc_calc_width.click(
lambda h2, w1, h1: (solve_aspect_ratio(0, h2, w1, h1)),
inputs=[arc_desired_height, arc_width1, arc_height1],
outputs=[arc_desired_width],
)
arc_apply_params = gr.Button(value="Apply")
with contextlib.suppress(AttributeError):
if is_img2img:
resolution = [self.i2i_w, self.i2i_h]
else:
resolution = [self.t2i_w, self.t2i_h]
arc_apply_params.click(
lambda w2, h2: (w2, h2),
inputs=[arc_desired_width, arc_desired_height],
outputs=resolution,
)
# Show calculator pane (and reset number input values)
arc_show_calculator.click(
lambda: [
gr.update(visible=True),
gr.update(visible=False),
gr.update(visible=True),
gr.update(value=512),
gr.update(value=512),
gr.update(value=0),
gr.update(value=0),
gr.update(value="Aspect Ratio: **1:1**"),
],
None,
[
arc_panel,
arc_show_calculator,
arc_hide_calculator,
arc_width1,
arc_height1,
arc_desired_width,
arc_desired_height,
arc_ar_display,
],
)
# Hide calculator pane
arc_hide_calculator.click(
lambda: [
gr.update(visible=False),
gr.update(visible=True),
gr.update(visible=False),
],
None,
[arc_panel, arc_show_calculator, arc_hide_calculator],
)
# https://github.com/AUTOMATIC1111/stable-diffusion-webui/pull/7456#issuecomment-1414465888
def after_component(self, component, **kwargs):
if kwargs.get("elem_id") == "txt2img_width":
self.t2i_w = component
if kwargs.get("elem_id") == "txt2img_height":
self.t2i_h = component
if kwargs.get("elem_id") == "img2img_width":
self.i2i_w = component
if kwargs.get("elem_id") == "img2img_height":
self.i2i_h = component
if kwargs.get("elem_id") == "img2img_image":
self.image = [component]
if kwargs.get("elem_id") == "img2img_sketch":
self.image.append(component)
if kwargs.get("elem_id") == "img2maskimg":
self.image.append(component)
if kwargs.get("elem_id") == "inpaint_sketch":
self.image.append(component)
if kwargs.get("elem_id") == "img_inpaint_base":
self.image.append(component)
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