还不能够实现所有组件随分辨率自动变化
# 实现的是界面覆盖整个屏幕
from tkinter import *
import win32api, win32con
# 获取屏幕的分辨率
width = win32api.GetSystemMetrics(win32con.SM_CXSCREEN)
height = win32api.GetSystemMetrics(win32con.SM_CYSCREEN)
# 设置UI界面
root = Tk()
root.geometry("%dx%d" %(width, height))
root.resizable(False, False)
root.mainloop()
# 实现的是界面最大化
from tkinter import *
root = Tk()
root.state("zoomed")
root.mainloop()
可以结合一个python任意区域截图的案例进行分析：
#! /usr/bin/env python
# ! -*- coding:utf-8 -*-
# ====#====#====#====
# HomePage:https://www.cnblogs.com/Qzzz/
# FileName: *.py
# ====#====#====#====
from win32 import win32api, win32gui, win32print
from win32.lib import win32con
from win32.win32api import GetSystemMetrics
import tkinter as tk
from PIL import ImageGrab
from tkinter import *
from tkinter import filedialog, scrolledtext, messagebox
import numpy as np
import matplotlib
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from PIL import Image, ImageTk
matplotlib.use('TkAgg')
global photo
global thDim
global filepath
global point1, point2
global afterHandler
class MainWindow(Tk):
def __init__(self, master=None):
super().__init__(master)
global photo
global thDim
photo = None
thDim = None
self.master = master
self.title("DataCollect")
self.state("zoomed") # 最大化设置
self.pw1 = PanedWindow(self, orient=VERTICAL, sashrelief="sunken")
self.pw1.pack(fill=BOTH)
self.pw2 = PanedWindow(self.pw1, orient=HORIZONTAL, width=1110, height=813, sashrelief="sunken")
self.fr2 = Frame(self.pw2, width=960)
self.fr3 = Frame(self.pw2, width=960)
self.fr3.place(x=25, y=15)
self.fig = plt.figure(figsize=(9.5, 7.15))
self.ax = plt.subplot(projection='3d')
self.fig.add_axes(self.ax)
self.canvas = FigureCanvasTkAgg(self.fig, master=self.fr3)
self.canvas.draw()
self.canvas.get_tk_widget().place(x=5, y=5)
self.fr1 = Frame(self.pw1, width=800, height=190)
self.pw1.add(self.pw2)
self.pw1.add(self.fr1)
self.pw2.add(self.fr2)
self.pw2.add(self.fr3)
self.Button_open = Button(self.fr2, text="打开图片", width=8, font=("等线", 20, "bold"), command=self.getfile)
self.Button_open.place(x=130, y=740)
self.Button_screen = Button(self.fr2, text="开始截图", width=8, font=("等线", 20, "bold"), command=ScreenShot)
self.Button_screen.place(x=280, y=740)
self.Button_add = Button(self.fr2, text="导入数据", width=8, font=("等线", 20, "bold"), command=self.saveData)
self.Button_add.place(x=690, y=740)
self.Button_update1 = Button(self.fr3, text="更新图像", width=8, font=("等线", 20, "bold"), command=self.draw3Dim)
self.Button_update1.place(x=200, y=740)
self.Button_update2 = Button(self.fr3, text="更新文档", width=8, font=("等线", 20, "bold"), command=self.getData)
self.Button_update2.place(x=560, y=740)
self.Pane_left = Label(self.fr2, image=photo)
self.Pane_left.place(x=0, y=0)
self.Pane_right = Label(self.fr3, image=thDim)
self.Pane_right.place(x=0, y=0)
self.Pane_down = Label(self.fr1, height=190, width=800)
self.Pane_down.place(x=0, y=0)
self.scroll = Scrollbar(self.Pane_down)
self.layerNum = Label(self.fr2, text="预测层数：", font=('等线', 20), width=9)
self.layerNum.place(x=440, y=745)
self.var = StringVar()
self.num = Entry(self.fr2, width=15, textvariable=self.var)
self.num.place(x=570, y=752)
global afterHandler
afterHandler = self.after(100, self.draw3Dim)
self.protocol("WM_DELETE_WINDOW", self.on_closing)
# 读取文件并显示图片
def getfile(self):
global filepath
filepath = filedialog.askopenfilename(title='选择文件', filetypes=[('BMP', '*.bmp'), ('All Files', '*')])
img = Image.open(filepath)
width, height = img.size
img = img.resize((958, int(958 / width * height)))
global photo
photo = ImageTk.PhotoImage(img)
self.Pane_left.configure(image=photo)
self.Pane_left.image = photo
def saveData(self):
img = Image.open('./ScreenShot.bmp')
width = img.size[0]
height = img.size[1]
pix = img.load()
fname = open('./rgbData.txt', "a")
for i in range(0, width):
for j in range(0, height):
fname.write(str(pix[i, j][0]) + ',' + str(pix[i, j][1]) + ',' + str(pix[i, j][2]) + ',' + str(self.num.get()) + '\n')
# 读取并显示数据集
def getData(self):
txt = scrolledtext.ScrolledText(self.Pane_down, width=1110, height=106, font=("宋体", 10))
txt.place(x=0, y=0)
f = open('./rgbData.txt')
s = f.read()
txt.insert(END, s)
scroll = Scrollbar(self.Pane_down, orient=VERTICAL, takefocus=0.5)
scroll.place(relwidth=0.05, relheight=1, relx=0.9375, rely=0)
scroll.config(command=txt.yview)
txt.config(yscrollcommand=scroll.set)
# 根据数据集绘制三维图像
def draw3Dim(self):
# self.ax.clear()
data_path = './rgbData.txt'
data = np.loadtxt(data_path, dtype=int, delimiter=',')
x, y = np.split(data, (3,), axis=1)
x0 = x[:, 0]
y0 = x[:, 1]
z0 = x[:, 2]
num = y[:, 0]
self.ax.set_xlim(0, 255)
self.ax.set_ylim(0, 255)
self.ax.set_zlim(0, 255)
for i in range(len(num)):
# print(num[i])
if num[i] == 0:
self.ax.scatter(x0[i], y0[i], z0[i], c='b')
elif num[i] == 1:
self.ax.scatter(x0[i], y0[i], z0[i], c='c')
elif num[i] == 2:
self.ax.scatter(x0[i], y0[i], z0[i], c='g')
elif num[i] == 3:
self.ax.scatter(x0[i], y0[i], z0[i], c='k')
elif num[i] == 4:
self.ax.scatter(x0[i], y0[i], z0[i], c='m')
elif num[i] == 5:
self.ax.scatter(x0[i], y0[i], z0[i], c='r')
self.ax.set_xlabel('R')
self.ax.set_ylabel('G')
self.ax.set_zlabel('B')
self.canvas.draw()
# 关闭
def on_closing(self):
self.after_cancel(afterHandler)
answer = messagebox.askokcancel("退出", "确定退出吗?")
if answer:
plt.close('all')
self.destroy()
else:
self.after(1000, self.draw3Dim)
class Box:
def __init__(self):
self.start_x = None
self.start_y = None
self.end_x = None
self.end_y = None
def isNone(self):
return self.start_x is None or self.end_x is None
def setStart(self, x, y):
self.start_x = x
self.start_y = y
def setEnd(self, x, y):
self.end_x = x
self.end_y = y
def box(self):
lt_x = min(self.start_x, self.end_x)
lt_y = min(self.start_y, self.end_y)
rb_x = max(self.start_x, self.end_x)
rb_y = max(self.start_y, self.end_y)
return lt_x, lt_y, rb_x, rb_y
def center(self):
center_x = (self.start_x + self.end_x) / 2
center_y = (self.start_y + self.end_y) / 2
return center_x, center_y
class SelectionArea:
def __init__(self, canvas: tk.Canvas):
self.canvas = canvas
self.area_box = Box()
def empty(self):
return self.area_box.isNone()
def setStartPoint(self, x, y):
self.canvas.delete('area', 'lt_txt', 'rb_txt')
self.area_box.setStart(x, y)
# 开始坐标文字
self.canvas.create_text(
x, y - 10, text=f'({x}, {y})', fill='red', tag='lt_txt')
def updateEndPoint(self, x, y):
self.area_box.setEnd(x, y)
self.canvas.delete('area', 'rb_txt')
box_area = self.area_box.box()
# 选择区域
self.canvas.create_rectangle(
*box_area, fill='black', outline='red', width=2, tags="area")
self.canvas.create_text(
x, y + 10, text=f'({x}, {y})', fill='red', tag='rb_txt')
class ScreenShot():
def __init__(self, scaling_factor=2):
self.win = tk.Tk()
# self.win.tk.call('tk', 'scaling', scaling_factor)
self.width = 960
self.height = 813
# 无边框，没有最小化最大化关闭这几个按钮，也无法拖动这个窗体，程序的窗体在Windows系统任务栏上也消失
self.win.overrideredirect(True)
self.win.attributes('-alpha', 0.1)
self.is_selecting = False
# 绑定按 Enter 确认, Esc 退出
self.win.bind('<KeyPress-Escape>', self.exit)
self.win.bind('<KeyPress-Return>', self.confirmScreenShot)
self.win.bind('<Button-1>', self.selectStart)
self.win.bind('<ButtonRelease-1>', self.selectDone)
self.win.bind('<Motion>', self.changeSelectionArea)
self.canvas = tk.Canvas(self.win, width=self.width,
height=self.height)
self.canvas.pack()
self.area = SelectionArea(self.canvas)
self.win.mainloop()
def exit(self, event):
self.win.destroy()
def clear(self):
self.canvas.delete('area', 'lt_txt', 'rb_txt')
self.win.attributes('-alpha', 0)
def captureImage(self):
if self.area.empty():
return None
else:
box_area = [x for x in self.area.area_box.box()]
self.clear()
print(f'Grab: {box_area}')
img = ImageGrab.grab(box_area)
return img
def confirmScreenShot(self, event):
img = self.captureImage()
if img is not None:
img.show()
img.save('./ScreenShot.bmp')
self.win.destroy()
def selectStart(self, event):
self.is_selecting = True
self.area.setStartPoint(event.x, event.y)
# print('Select', event)
def changeSelectionArea(self, event):
if self.is_selecting:
self.area.updateEndPoint(event.x, event.y)
# print(event)
def selectDone(self, event):
# self.area.updateEndPoint(event.x, event.y)
self.is_selecting = False
if __name__ == '__main__':
this_main = MainWindow()
this_main.mainloop()
