代码如下:
import tkinter as tk
import win32api
import win32con
import pywintypes
from screeninfo import get_monitors
from PIL import Image, ImageDraw, ImageFont,ImageTk
font_family = "msyh.ttf" # Replace with your actual font filename
font_size = 36
def generate_watermark(text, width, height, color='#d5d5d5', opacity=10, lines=1, angle=0):
spacing = 10
# 创建一个 Image 对象,用于绘制水印
img = Image.new('RGBA', (width, height), (255, 255, 255, 0))
draw = ImageDraw.Draw(img)
font = ImageFont.truetype(font_family, font_size)
# 将文本拆分成多行
text_lines = text.split('\n')
# 计算每个水印的宽度和高度
bbox = draw.textbbox((0, 0), text_lines[0], font=font)
text_width, text_height = bbox[2] - bbox[0], bbox[3] - bbox[1] + 30
# 计算每行可以容纳的水印数量
watermarks_per_row = width // (text_width + spacing)
total_rows = (height - 50) // (text_height + spacing)
# 设置初始位置
x = 50
y = 50
for row in range(total_rows):
x = 50 # 每行重新从左侧开始
y = 50 + row * (text_height + spacing)
for col in range(watermarks_per_row):
# 旋转文本
rotated_text = Image.new('RGBA', (text_width, text_height), (255, 255, 255, 0))
rotated_draw = ImageDraw.Draw(rotated_text)
if row < len(text_lines):
rotated_draw.text((0, 0), text_lines[row], font=font, fill=color)
else:
# 如果 row 超出范围,跳过绘制
break
rotated_text = rotated_text.rotate(angle, expand=True)
# 将旋转后的文本粘贴到主图像上
img.paste(rotated_text, (x, y), rotated_text)
x += text_width + spacing
tk_img = ImageTk.PhotoImage(img)
# 创建一个 Label 并显示图片
label = tk.Label(image=tk_img,bg="white")
label.image = tk_img # 保持引用,防止垃圾回收
label.pack()
def get_total_screen_size():
monitors = get_monitors()
width = sum(monitor.width for monitor in monitors)
height = max(monitor.height for monitor in monitors)
return width, height
def create_watermark_window(text, **kwargs):
root = tk.Tk()
# 获取屏幕分辨率
screen_width, screen_height = get_total_screen_size()
def generate_watermark_with_size():
generate_watermark(text, screen_width, screen_height, **kwargs)
# 使用 after 方法延迟执行生成水印函数
root.after(100, generate_watermark_with_size)
root.overrideredirect(True)
root.lift()
root.attributes('-alpha', 0.2) # 设置透明度
root.wm_attributes('-topmost', True)
root.wm_attributes('-disabled', True)
root.wm_attributes('-transparentcolor',"white")
hWindow = pywintypes.HANDLE(int(root.frame(), 16))
exStyle = win32con.WS_EX_COMPOSITED | win32con.WS_EX_LAYERED | win32con.WS_EX_NOACTIVATE | win32con.WS_EX_TOPMOST | win32con.WS_EX_TRANSPARENT
win32api.SetWindowLong(hWindow, win32con.GWL_EXSTYLE, exStyle)
root.mainloop()
if __name__ == '__main__':
mytext = "一二\n 二行"
angle = 45 # 旋转角度
create_watermark_window(mytext, angle=angle, lines=10)
我想实现全屏水印,但是只实现了一行。 对于计算,实在脑袋不够用,恳请各位赐教一下
1
lpe234 6 天前 1
```python
if row < len(text_lines): rotated_draw.text((0, 0), text_lines[row], font=font, fill=color) else: # 如果 row 超出范围,跳过绘制 break ``` 这块写的有问题,只会绘制 text_lines 行数。 改成下面的就好了 `rotated_draw.text((0, 0), text_lines[row % len(text_lines)], font=font, fill=color)` |
2
life90 OP @lpe234 按你的改了,也不行。显示效果如图:
![python 显示效果]( https://s21.ax1x.com/2024/11/28/pA59my4.png) 这是个扩展屏,总的长高是 3840 * 1200 |
3
life90 OP ![python 显示效果]( https://s21.ax1x.com/2024/11/28/pA59my4.png)
|
4
lpe234 6 天前
@life90 #2 不会呀
---- # if row < len(text_lines): # rotated_draw.text((0, 0), text_lines[row], font=font, fill=color) # else: # # 如果 row 超出范围,跳过绘制 # break # Here rotated_draw.text((0, 0), text_lines[row % len(text_lines)], font=font, fill=color) ---- |
6
life90 OP @lpe234 你知道如何处理扩展屏的状态么?在扩展屏来回切换,会导致只有一屏显示。
``` iimport tkinter as tk import win32api import win32con import pywintypes import os import threading import time from screeninfo import get_monitors from PIL import Image, ImageDraw, ImageFont,ImageTk def get_total_screen_size(): monitors = get_monitors() width = sum(monitor.width for monitor in monitors) height = max(monitor.height for monitor in monitors) return width, height font_family = "msyh.ttf" # Replace with your actual font filename font_size = 36 def generate_watermark(text, width, height,color='#d5d5d5', opacity=0, lines=10, angle=0): get_total_screen_size() spacing = 100 # 创建一个 Image 对象,用于绘制水印 img = Image.new('RGBA', (width, height), (255, 255, 255, 0)) draw = ImageDraw.Draw(img) font = ImageFont.truetype(font_family, font_size) # 将文本拆分成多行 text_lines = text.split('\n') if text else lines # 计算每个水印的宽度和高度 bbox = draw.textbbox((0, 0), text_lines[0], font=font) text_width, text_height = bbox[2] - bbox[0] + spacing, bbox[3] - bbox[1] + spacing # 计算每行可以容纳的水印数量 watermarks_per_row = width // (text_width + spacing) total_rows = (height - 50) // (text_height + spacing) # 设置初始位置 x = 50 y = 30 for row in range(0,total_rows): x = 50 # 每行重新从左侧开始 y = 50 + row * (text_height + spacing) for col in range(0,watermarks_per_row): rotated_text = Image.new('RGBA', (text_width, text_height), (255, 255, 255, 0)) rotated_draw = ImageDraw.Draw(rotated_text) rotated_draw.text((0, 0), text_lines[row % len(text_lines)], font=font, fill=color) rotated_text = rotated_text.rotate(angle, expand=True) # 将旋转后的文本粘贴到主图像上 img.paste(rotated_text, (x, y), rotated_text) x += text_width + spacing tk_img = ImageTk.PhotoImage(img) # 创建一个 Label 并显示图片 label = tk.Label(image=tk_img,bg="white") label.image = tk_img # 保持引用,防止垃圾回收 label.pack() def create_watermark_window(text, **kwargs): root = tk.Tk() def generate_watermark_with_size(): screen_width, screen_height = get_total_screen_size() generate_watermark(text, screen_width, screen_height, **kwargs) def monitor_resolution_changes(): nonlocal generate_watermark_with_size prev_monitor_count = 1 while True: current_monitor_count = len(get_monitors()) if current_monitor_count != prev_monitor_count: generate_watermark_with_size() prev_monitor_count = current_monitor_count time.sleep(3) monitor_thread = threading.Thread(target=monitor_resolution_changes) monitor_thread.daemon = True monitor_thread.start() # 使用 after 方法延迟执行生成水印函数 root.after(100, generate_watermark_with_size) root.overrideredirect(True) root.lift() root.attributes('-alpha', 0.3) # 设置透明度 root.wm_attributes('-topmost', True) root.wm_attributes('-disabled', True) root.wm_attributes('-transparentcolor',"white") hWindow = pywintypes.HANDLE(int(root.frame(), 16)) exStyle = win32con.WS_EX_COMPOSITED | win32con.WS_EX_LAYERED | win32con.WS_EX_NOACTIVATE | win32con.WS_EX_TOPMOST | win32con.WS_EX_TRANSPARENT win32api.SetWindowLong(hWindow, win32con.GWL_EXSTYLE, exStyle) root.mainloop() # 使用示例 if __name__ == '__main__': # 获取当前用户名 username = os.getlogin() # 组合文本 mytext = f"Allianz\n{username}" # 使用 f-string 格式化字符串 angle = 45 # 旋转角度 create_watermark_window(mytext, angle=angle, lines=10) ``` |