ThirdVersion=>MVC design
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Yousri
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20dc441817
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f21ccb082d
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@ -2739,7 +2739,6 @@ from tkinter import *
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class MainWindow(Frame):
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def __init__(self):
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Frame.__init__(self,master=None)
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Label.__init__(self, text="hello world")
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self.pack()
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@ -2747,7 +2746,7 @@ if __name__ == "__main__":
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root = Tk()
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root.title("title of the window")
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root.geometry("500x300")
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win = MainWindow()
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MainWindow()
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root.mainloop()
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```
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@ -2759,7 +2758,6 @@ from tkinter import *
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class MainWindow(Frame):
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def __init__(self):
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Frame.__init__(self,master=None)
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Label.__init__(self, text="hello world")
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#Label
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MyLabel = Label(self, text="This is a label")
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@ -2772,7 +2770,7 @@ if __name__ == "__main__":
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root = Tk()
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root.title("title of the window")
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root.geometry("500x300")
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win = MainWindow()
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MainWindow()
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root.mainloop()
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```
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@ -2783,7 +2781,6 @@ from tkinter import *
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class MainWindow(Frame):
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def __init__(self):
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Frame.__init__(self,master=None)
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Label.__init__(self, text="hello world")
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#Label
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MyLabel = Label(self, text="This is a label")
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@ -2799,7 +2796,7 @@ if __name__ == "__main__":
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root = Tk()
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root.title("title of the window")
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root.geometry("500x300")
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win = MainWindow()
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MainWindow()
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root.mainloop()
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```
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@ -2808,156 +2805,171 @@ We can overcome this problem with parameters of [pack()](https://wxpython.org/Ph
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We can also use other geometry managers like [grid()](https://www.pythontutorial.net/tkinter/tkinter-grid/) and [place()](https://www.pythontutorial.net/tkinter/tkinter-place/).
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```python
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import wx
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from tkinter import *
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class MainWindow(wx.Frame):
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class MainWindow(Frame):
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def __init__(self):
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wx.Frame.__init__(self, None, title="hello world")
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self.panel = wx.Panel(self)
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self.box = wx.BoxSizer()
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self.label = wx.StaticText(self.panel, label="this is a label")
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self.input = wx.TextCtrl(self.panel)
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self.button = wx.Button(self.panel, label="I'm clickable!")
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self.box.Add(self.label)
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self.box.Add(self.input)
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self.box.Add(self.button)
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self.panel.SetSizer(self.box)
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self.Show()
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Frame.__init__(self, master=None)
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MyPanel = PanedWindow.__init__(self, bg="Blue")
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#Label
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MyLabel = Label(MyPanel, text="this is a label", bg= "yellow")
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MyLabel.pack(fill="x")
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#Bouton
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MyButton = Button(MyPanel, text="I'm clickable!")
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MyButton.place(x=10, y=50)
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self.pack(fill=BOTH,expand=True)
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if __name__ == "__main__":
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app = wx.App()
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root = Tk()
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root.title("this is the title of the window")
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root.geometry("500x300")
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win = MainWindow()
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app.MainLoop()
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root.mainloop()
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```
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This is looking better!
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But it requires some explanation though.
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Let's break it down.
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The `wx.Frame` is your **window** in which you create a `wx.Panel` which is used to draw thing to.
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To this panel you're adding three different *objects* (`wx.StaticText`, `wx.TextCtrl` and `wx.Button`) each with or without their own settings (such as a label or not).
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Next you add these three objects to the `wx.BoxSizer` and you tell the panel to use this box as sizer.
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The `Frame.__init__` is your **window** in which you create a `PanedWindow.__init__` which is used to draw thing to.
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To this panel you're adding two different *objects* (`Label()` and `Button()`) each with or without their own settings (such as a label or not).
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It probably looks a bit convoluted but this is how most GUI libraries work internally.
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1. You create a frame
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2. Within this frame you create a *drawing area* and set some form of automatic layout to it (the `wx.BoxSizer`).
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2. Within this frame you create a *drawing area* and set some form of automatic layout to it.
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3. You create the visual elements you want and add them one by one to the drawing area.
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4. Success
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Now how do we link **user input** to **code actions**?
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This is a complicated way of saying *actually do something when I click the damn button*!
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For this we'll need to create a function, or better yet a method to the `wx.Frame` objects.
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For this we'll need to create a function, or better yet a method to the `Frame.__init__` objects.
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Each time we click the button, that method will be called.
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Because it is a *method* it has access to *self* so it can modify *anything* within the scope of the instance.
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```python
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import wx
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import random
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from tkinter import *
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class MainWindow(Frame):
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def __init__(self):
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Frame.__init__(self, master=None)
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MyPanel = PanedWindow.__init__(self, bg="Blue")
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#Label
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MyLabel = Label(MyPanel, text="this is a label", bg= "yellow")
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MyLabel.pack(fill="x")
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#Bouton
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MyButton = Button(MyPanel, text="I'm clickable!", command=lambda : self.ButtonEnable(MyLabel))
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MyButton.place(x=10, y=50)
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self.pack(fill=BOTH,expand=True)
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def ButtonEnable(self, Label):
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global number
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number += 1
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counter = "You have press the button {} time".format(number)
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Label.config(text=counter)
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class MainWindow(wx.Frame):
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def __init__(self):
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wx.Frame.__init__(self, None, title="hello world")
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self.panel = wx.Panel(self)
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self.box = wx.BoxSizer()
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self.label = wx.StaticText(self.panel, label="this is a label")
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self.input = wx.TextCtrl(self.panel)
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self.button = wx.Button(self.panel, label="I'm clickable!")
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self.button.Bind(wx.EVT_BUTTON, self.set_label_value)
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self.box.Add(self.label)
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self.box.Add(self.input)
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self.box.Add(self.button)
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self.panel.SetSizer(self.box)
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self.Show()
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def set_label_value(self, event):
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number = random.randint(0, 100)
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self.label.SetLabel("{}".format(number))
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number=0
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if __name__ == "__main__":
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app = wx.App()
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root = Tk()
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root.title("this is the title of the window")
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root.geometry("500x300")
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win = MainWindow()
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app.MainLoop()
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root.mainloop()
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```
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We can use the same *idea* to grab input from the textbox.
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```python
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import wx
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from tkinter import *
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class MainWindow(Frame):
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def __init__(self):
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Frame.__init__(self, master=None)
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MyPanel = PanedWindow.__init__(self, bg="Blue")
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#Label
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MyLabel = Label(MyPanel, text="this is a label", bg= "yellow")
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MyLabel.pack(fill="x")
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#TextBox
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MyEntry = Entry(MyPanel)
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MyEntry.place(x=200,y=50)
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#Bouton
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MyButton = Button(MyPanel, text="I'm clickable!", command=lambda : self.ButtonEnable(MyLabel,MyEntry))
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MyButton.place(x=10, y=50)
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self.pack(fill=BOTH,expand=True)
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class MainWindow(wx.Frame):
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def __init__(self):
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wx.Frame.__init__(self, None, title="hello world")
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self.panel = wx.Panel(self)
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self.box = wx.BoxSizer()
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self.label = wx.StaticText(self.panel, label="this is a label")
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self.input = wx.TextCtrl(self.panel)
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self.button = wx.Button(self.panel, label="I'm clickable!")
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self.button.Bind(wx.EVT_BUTTON, self.set_label_value)
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self.box.Add(self.label)
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self.box.Add(self.input)
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self.box.Add(self.button)
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self.panel.SetSizer(self.box)
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self.Show()
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def set_label_value(self, event):
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msg = self.input.GetValue()
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self.label.SetLabel("{}".format(msg))
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def ButtonEnable(self, MyLabel, MyEntry):
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MyText = MyEntry.get()
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MyLabel.config(text=MyText)
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if __name__ == "__main__":
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app = wx.App()
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root = Tk()
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root.title("this is the title of the window")
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root.geometry("500x300")
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win = MainWindow()
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app.MainLoop()
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root.mainloop()
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```
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## wxpython guess the number
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## Tkinter guess the number
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```python
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import wx
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from tkinter import *
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import random
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class MainWindow(Frame):
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def __init__(self):
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Frame.__init__(self, master=None, bg="white")
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MyPanel = PanedWindow.__init__(self)
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class MainWindow(wx.Frame):
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def __init__(self):
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wx.Frame.__init__(self, None, title="Guess the number")
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self.number = random.randint(0, 100)
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self.panel = wx.Panel(self)
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self.box = wx.BoxSizer(wx.VERTICAL)
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self.label = wx.StaticText(self.panel, label="I have a number in mind...")
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self.input = wx.TextCtrl(self.panel)
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self.button = wx.Button(self.panel, label="I'm clickable!")
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self.button.Bind(wx.EVT_BUTTON, self.set_label_value)
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self.box.Add(self.label)
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self.box.Add(self.input)
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self.box.Add(self.button)
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self.panel.SetSizer(self.box)
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self.Show()
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MyNumber = random.randint(0, 100)
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def set_label_value(self, event):
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result = self.input.GetValue()
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if result.isdigit():
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status, context = self.evaluate_user_number(int(result))
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self.label.SetLabel(context)
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#Label
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MyLabel = Label(MyPanel, text="I have a number in mind...", bg= "blue")
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MyLabel.pack(fill="x", ipadx=25, ipady=20)
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#TextBox
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MyEntry = Entry(MyPanel)
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MyEntry.place(x=200,y=90)
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#Bouton
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MyButton = Button(MyPanel, text="I'm clickable!", command=lambda : self.ButtonEnable(MyLabel,MyEntry, MyNumber))
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MyButton.place(x=10, y=90)
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self.pack(fill=BOTH,expand=True)
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def ButtonEnable(self, MyLabel, MyEntry, MyNumber):
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if self.IsCorrect(MyEntry.get()):
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number = int(MyEntry.get())
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if number > MyNumber:
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MyLabel.config(text="My number is smaller")
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elif number < MyNumber:
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MyLabel.config(text="My number is bigger")
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else:
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MyLabel.cionfig(text="You WIN!")
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else:
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self.label.SetLabel("I need numbers!")
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MyLabel.config(text="I need numbers!")
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def evaluate_user_number(self, number):
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if number > self.number:
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return False, "my number is smaller"
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elif number < self.number:
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return False, "my number is bigger"
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elif number == self.number:
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return True, "You win!"
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def IsCorrect(self, MyEntry):
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x = str(MyEntry)
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if x.isdigit() == True:
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return True
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else:
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return False
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if __name__ == "__main__":
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app = wx.App()
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root = Tk()
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root.title("Guess the number")
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root.geometry("500x300")
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win = MainWindow()
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app.MainLoop()
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root.mainloop()
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```
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## MVC design pattern
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@ -2966,7 +2978,7 @@ A simple console only MVC.
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We'll add the GUI view in a bit.
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```python
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import wx
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from tkinter import *
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class ConsoleView(object):
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@ -2986,11 +2998,6 @@ class ConsoleView(object):
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"""Prints error messages coming from the controller."""
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print("error: {}".format(msg))
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class WxView(wx.Dialog):
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pass
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class Model(object):
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"""The model houses add data and should implement all methods related to
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adding, modifying and deleting tasks."""
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@ -3053,7 +3060,7 @@ if __name__ == "__main__":
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app.run()
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```
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And now with the implemented `WxView` class.
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And now with the implemented `TkinterView` class.
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```python
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import wx
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@ -3110,7 +3117,6 @@ class WxView(wx.Dialog):
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called from the controller."""
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self.task.SetLabel(task)
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class Model(object):
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"""The model houses add data and should implement all methods related to
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adding, modifying and deleting tasks."""
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