Question

我在理解tkinter（python 2.7）中的Progressbar窗口小部件时遇到了一些问题我去了here和here但我还是不明白如何链接Progressbar本身（在＆＃34;确定＆＃34;模式下）到我的函数。

有没有人有关于如何将功能完成链接到进度条更新的示例？请不要因缺乏研究而投票;我对此进行了研究，我无法找到任何有用的信息。关于我（已经工作的）代码的注释 - 在运行代码时创建.txt文件，该文件打印函数的总数和正在运行的当前函数。我想将progressbar与这些.txt文件中的信息相关联。

编辑：更具体地说，如何将值更改为正确的数字？

Answer 1

工作示例 - 您可以在两种类型的进度条中查看当前值和最大值。

-

您可以在函数中使用self.var_ind.set()或self.var_det.set()（在课程MainWindow内）更新进度条。

-

如果您的函数在课外，则必须使用self.var_ind或self.var_det作为参数调用它。

 your_function(self.var_det)

和内部功能使用它

 def your_function(progress):
     progress.set(10) # set new value
     progress.set( progress.get() + 23 ) # add 23 to current value

我在var_ind.set()，self.var_det.set()，BEGIN中使用SET 23和END来设置新值。

-

如果您必须在进度栏中设置max，则还需要添加self.pbar_ind或self.pbar_det作为参数。

 your_function(self.var_det, self.pbar_det)

和内部功能使用它

 def your_function(progress, bar):

     bar.config(maximum=200) # set max to 200

     bar.step() # add 1 to current value
     bar.step(23) # add 23 to current value

     progress.set(10) # set new value
     progress.set( progress.get() + 23 ) # add 23 to current value

编辑：包含更多按钮的新示例：

from Tkinter import *
import ttk

class MainWindow(Frame):

    def __init__(self):
        Frame.__init__(self)
        self.master.title("ProgressBar example")
        #self.master.minsize(400, 100)
        self.grid(sticky=E+W+N+S)

        #-----

        self.var_ind = IntVar(self)

        self.pbar_ind = ttk.Progressbar(self, orient="horizontal", length=400, mode="indeterminate", variable=self.var_ind, maximum=100)
        self.pbar_ind.grid(row=0, column=0, pady=2, padx=2, sticky=E+W+N+S, columnspan=3)

        Label(self, text="indeterminate").grid(row=1, column=0, pady=2, padx=2, sticky=E+W+N+S)

        self.lab_ind_var = Label(self, text="VAR:")
        self.lab_ind_var.grid(row=1, column=1, pady=2, padx=2, sticky=E+W+N+S)

        self.lab_ind_max = Label(self, text="MAX:")
        self.lab_ind_max.grid(row=1, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        self.var_det = IntVar(self)

        self.pbar_det = ttk.Progressbar(self, orient="horizontal", length=400, mode="determinate", variable=self.var_det, maximum=100)
        self.pbar_det.grid(row=2, column=0, pady=2, padx=2, sticky=E+W+N+S, columnspan=3)

        Label(self, text="determinate").grid(row=3, column=0, pady=2, padx=2, sticky=E+W+N+S)

        self.lab_det_var = Label(self, text="VAR:")
        self.lab_det_var.grid(row=3, column=1, pady=2, padx=2, sticky=E+W+N+S)

        self.lab_det_max = Label(self, text="MAX:")
        self.lab_det_max.grid(row=3, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        Label(self, text="ANIMATION:").grid(row=4, column=0, pady=2, padx=2, sticky=E+W+N+S)

        Button(self, text='START', command=self.animation_start).grid(row=4, column=1, pady=2, padx=2, sticky=E+W+N+S)
        Button(self, text='STOP', command=self.animation_stop).grid(row=4, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        Label(self, text="SET:").grid(row=5, column=0, pady=2, padx=2, sticky=E+W+N+S)

        Button(self, text='BEGIN', command=self.set_begin).grid(row=5, column=1, pady=2, padx=2, sticky=E+W+N+S)
        Button(self, text='END', command=self.set_end).grid(row=5, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        Label(self, text="SET:").grid(row=6, column=0, pady=2, padx=2, sticky=E+W+N+S)

        Button(self, text='23', command=lambda:self.set(23)).grid(row=6, column=1, pady=2, padx=2, sticky=E+W+N+S)
        Button(self, text='77', command=lambda:self.set(77)).grid(row=6, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        Label(self, text="SET:").grid(row=7, column=0, pady=2, padx=2, sticky=E+W+N+S)

        Button(self, text='+23', command=lambda:self.set_plus(23)).grid(row=7, column=1, pady=2, padx=2, sticky=E+W+N+S)
        Button(self, text='-77', command=lambda:self.set_plus(-77)).grid(row=7, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        Label(self, text="STEP:").grid(row=8, column=0, pady=2, padx=2, sticky=E+W+N+S)

        Button(self, text='+1', command=lambda:self.step(1)).grid(row=8, column=1, pady=2, padx=2, sticky=E+W+N+S)
        Button(self, text='-10', command=lambda:self.step(-10)).grid(row=8, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        Label(self, text="MAX:").grid(row=9, column=0, pady=2, padx=2, sticky=E+W+N+S)

        Button(self, text='100', command=lambda:self.max(100)).grid(row=9, column=1, pady=2, padx=2, sticky=E+W+N+S)
        Button(self, text='200', command=lambda:self.max(200)).grid(row=9, column=2, pady=2, padx=2, sticky=E+W+N+S)

        #-----

        self.update_labels_after = False
        self.update_labels()

    #-----          

    def animation_start(self):
        self.update_labels_after = True

        self.pbar_ind.start() # .start(1)
        self.pbar_det.start() # .start(1)

        self.update_labels()

    def animation_stop(self):
        self.update_labels_after = False

        self.pbar_ind.stop()
        self.pbar_det.stop()

        self.update_labels()

    #-----          

    def set_begin(self):
        self.var_ind.set( 0 )
        self.var_det.set( 0 )

        self.update_labels()

    def set_end(self):
        self.var_ind.set( self.pbar_ind.cget('maximum') )
        self.var_det.set( self.pbar_det.cget('maximum') )

        self.update_labels()

    #-----          

    def set(self, val):
        self.var_ind.set( val )
        self.var_det.set( val )

        self.update_labels()

    #-----          

    def set_plus(self, val):
        self.var_ind.set( self.var_ind.get() + val )
        self.var_det.set( self.var_det.get() + val )

        self.update_labels()

    #-----          

    def step(self, val=1):
        self.pbar_ind.step(val) # .step()
        self.pbar_det.step(val) # .step()

        self.update_labels()

    #-----          

    def max(self, val=1):
        self.pbar_ind.config(maximum=val)
        self.pbar_det.config(maximum=val)

        self.update_labels()

    #-----          

    def update_labels(self):

        self.lab_ind_var.config(text='VAR: %d' % (self.var_ind.get()))
        self.lab_ind_max.config(text='MAX: %d' % (self.pbar_ind.cget('maximum')))

        self.lab_det_var.config(text='VAR: %d' % (self.var_det.get()))
        self.lab_det_max.config(text='MAX: %d' % (self.pbar_det.cget('maximum')))

        if self.update_labels_after:
            self.after(50, self.update_labels)

if __name__=="__main__":
   MainWindow().mainloop()

（要创建示例，我使用了 Gianni Spear问题Using the same progressbar in tkinter for several computation in Python）

中的部分代码

enter image description here

tkinter progressbar - 链接到功能？

1 个答案: