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更新 draw_pad.py #1

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19ac21a
更新 draw_pad.py
wuyu-qwq Aug 17, 2025
171525e
Update draw_pad.py
wuyu-qwq Aug 17, 2025
3b4e64f
Update draw_pad.py
wuyu-qwq Aug 17, 2025
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137 changes: 121 additions & 16 deletions draw_pad.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,86 @@
from tkinter.colorchooser import askcolor
from tkinter import filedialog, messagebox
import PIL.ImageGrab as ImageGrab
import math

# 处理颜色名称（如"white", "black"等）
color_names = {
'white': (255, 255, 255),
'black': (0, 0, 0),
'red': (255, 0, 0),
'green': (0, 255, 0),
'blue': (0, 0, 255),
# 可以根据需要添加更多颜色名称
}

#最大元归一
def toone(lst):
hig = len(lst)
wid = len(lst[0])

if hig*wid == 1:
return [[1]]

max = 0
#获取列表中的最大元
for i in range(hig):
for j in range(wid):
if lst[i][j]>max:
max = lst[i][j]
min = 0
min = max
#获取列表中的最小元
for i in range(hig):
for j in range(wid):
if lst[i][j]<min:
min = lst[i][j]


k = (1-min)/(max-min)
k_0 = min*((max-1)/(max-min))
#y=kx+k_0
for i in range(hig):
for j in range(wid):
lst[i][j] = k*lst[i][j]+k_0

return lst

#二维高斯分布 n:点阵边长
def normal_2d_wg(n):
ds = []
for i in range(n):
ds.append([])
for j in range(n):
ds[i].append(math.exp(-(((n-1)/2-i)**2+(-(n-1)/2+j)**2)))

ds = toone(ds)
return ds

def str_color_to_rgb(color):
if color in color_names:
return color_names[color]

hex_color = color
if hex_color.startswith('#'):
hex_color = hex_color[1:]

if len(hex_color) == 3:
hex_color = ''.join([c*2 for c in hex_color])

if len(hex_color) == 6:
try:
r = int(hex_color[0:2], 16)
g = int(hex_color[2:4], 16)
b = int(hex_color[4:6], 16)
return (r, g, b)
except ValueError:
pass

return (255, 255, 255)


def rgb_to_str_color(r,g,b):
return f"#{r:02x}{g:02x}{b:02x}"

class PaintApp:
# 常量定义
Expand All @@ -18,7 +98,7 @@ def __init__(self, root, grid_width=64, grid_height=48):
self.eraser_color = "white"
self.pen_size = 1 # 修改默认值为1，表示1个像素单位
# 像素网格设置
self.pixel_grid_enabled = False
self.pixel_grid_enabled = True
self.grid_width = grid_width # 固定网格宽度
self.grid_height = grid_height # 固定网格高度
self.pixel_size = 10 # 每个像素方格的大小
Expand Down Expand Up @@ -55,7 +135,7 @@ def __init__(self, root, grid_width=64, grid_height=48):
self.canvas.bind("<B1-Motion>", self.paint)
self.canvas.bind("<Button-1>", self.paint)
self.canvas.bind("<Configure>", self.on_canvas_resize)

def paint(self, event):
# 保存当前颜色
original_color = self.pen_color
Expand All @@ -69,7 +149,12 @@ def paint(self, event):
center_y = event.y // self.pixel_size

# 根据笔墨粗细绘制多个像素
i = 0
j = 0
radius = self.pen_size // 2
true_pen_color = normal_2d_wg(radius*2+1)
print(true_pen_color)
print(toone(true_pen_color))
for dy in range(-radius, radius + 1):
for dx in range(-radius, radius + 1):
x = center_x + dx
Expand All @@ -85,7 +170,11 @@ def paint(self, event):
if self.is_eraser_mode:
self._erase_pixel_at(screen_x, screen_y)
else:
self._draw_pixel(screen_x, screen_y, self.pen_color)
#print(str_color_to_rgb(self.pen_color)[0]*true_pen_color[i][j])
self._draw_pixel(screen_x, screen_y, rgb_to_str_color(round(str_color_to_rgb(self.pen_color)[0]*true_pen_color[i][j]),round(str_color_to_rgb(self.pen_color)[0]*true_pen_color[i][j]),round(str_color_to_rgb(self.pen_color)[0]*true_pen_color[i][j])),x,y)
j+=1
j=0
i+=1

# 恢复原来的颜色
self.pen_color = original_color
Expand All @@ -110,6 +199,29 @@ def _draw_pixel(self, screen_x, screen_y, color):
screen_x + self.pixel_size, screen_y + self.pixel_size,
fill=color, outline=color, tags=self.PIXEL_TAG
)


def _draw_pixel(self, screen_x, screen_y, color,px,py):
(r,g,b) = str_color_to_rgb(color)
(_r,_g,_b) = self.get_pixel(px,py)

r0 = r+_r
g0 = g+_g
b0 = b+_b

if r0 > 255:
r0 = 255
if g0 > 255:
g0 = 255
if b0 > 255:
b0 = 255

"""在指定位置绘制像素"""
self.canvas.create_rectangle(
screen_x, screen_y,
screen_x + self.pixel_size, screen_y + self.pixel_size,
fill=rgb_to_str_color(r0,g0,b0), outline=color, tags=self.PIXEL_TAG
)

def _get_current_drawing_color(self):
"""获取当前绘制颜色"""
Expand Down Expand Up @@ -190,12 +302,12 @@ def draw_pixel_grid(self):

# 绘制垂直线
for x in range(0, width + 1, self.pixel_size):
line = self.canvas.create_line(x, 0, x, height, fill="#e0e0e0", tags=self.GRID_TAG)
line = self.canvas.create_line(x, 0, x, height, fill="#707070", tags=self.GRID_TAG)
self.grid_lines.append(line)

# 绘制水平线
for y in range(0, height + 1, self.pixel_size):
line = self.canvas.create_line(0, y, width, y, fill="#e0e0e0", tags=self.GRID_TAG)
line = self.canvas.create_line(0, y, width, y, fill="#707070", tags=self.GRID_TAG)
self.grid_lines.append(line)

# 确保网格线在最底层，像素在最上层
Expand Down Expand Up @@ -248,15 +360,7 @@ def get_pixel(self, x, y):
if not color:
color = self.canvas.cget("bg")

# 处理颜色名称（如"white", "black"等）
color_names = {
'white': (255, 255, 255),
'black': (0, 0, 0),
'red': (255, 0, 0),
'green': (0, 255, 0),
'blue': (0, 0, 255),
# 可以根据需要添加更多颜色名称
}


if color in color_names:
return color_names[color]
Expand Down Expand Up @@ -372,5 +476,6 @@ def set_canvas(self, pixel_data):
if __name__ == "__main__":
root = Tk()
# 可以在这里指定网格的宽高，例如 64x48
app = PaintApp(root, grid_width=100, grid_height=100)
root.mainloop()
app = PaintApp(root, grid_width=64, grid_height=48)

root.mainloop()