27-python_GUI-布局管理-事件处理

﹏ヽ暗。殇╰゛Y 2022-09-17 11:20 256阅读 0赞

# 1. wxPython-布局管理 #

尺寸器  
  
\- sizer, wx.BoxSizer  
\- >>> help(wx.BoxSizer)  
  
\- 作用: 管理添加在其中的组件布局位置  
  
\- 用法:  
hbox = wx.BoxSizer(\[wx.HORIZONTAL\])  
vbox = wx.BoxSizer(wx.VERTICAL)  
  
\- 增加panel以利于布局  
  
\- 添加组件进行管理  
sizer.add(组件,proportion=,flag=,border=)  
  
例子

#-*- encoding:UTF-8 -*-
    import wx
    
    app = wx.App()
    win = wx.Frame(None, title="My Notebook", size=(410, 335))
    
    panel = wx.Panel(win)
    
    openButton = wx.Button(panel, label="Open")
    saveButton = wx.Button(panel, label="Save")
    filepathTxt = wx.TextCtrl(panel)
    contentTxt = wx.TextCtrl(panel, style=wx.TE_MULTILINE)
    
    #默认水平, 放置 文件路径文本框 打开按钮 保存按钮
    # proportion : 占总体的 几分之1
    # flag : expand 扩展
    hbox = wx.BoxSizer() 
    hbox.Add(filepathTxt, proportion=1, flag=wx.EXPAND)
    hbox.Add(openButton, proportion=0, flag=wx.LEFT, border=5)
    hbox.Add(saveButton, proportion=0, flag=wx.LEFT, border=5)
    
    #垂直, 
    bbox = wx.BoxSizer(wx.VERTICAL)
    bbox.Add(hbox, proportion=0, flag=wx.EXPAND|wx.ALL, border=5)
    bbox.Add(contentTxt, proportion=1,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM|wx.RIGHT,border=5)
    
    
    panel.SetSizer(bbox)
    
    win.Show()
    app.MainLoop()

# 2. wxPython-事件处理 #

通过组件的 Bind(func) 绑定事件处理函数  
如, 点击按钮时往控制台打印"hello"  
  
def printHelloEvtHandle(evt) :  
print "hello"  
btn.Bind(wx.EVT\_BUTTON, printHelloEvtHandle)

举例:

#-*- encoding:UTF-8 -*-
    import wx
    
    def openFileEventHandle(evt) :
        filepath = filepathTxt.GetValue()
        fopen = open(filepath)
        content = fopen.read()
        fopen.close()
        contentTxt.SetValue(content)
    
    def saveFileEventHandle(evt) :
        filepath = filepathTxt.GetValue()
        fopen = open(filepath, "w")
        content = contentTxt.GetValue()
        fopen.write(content)
        fopen.close()
    
    app = wx.App()
    win = wx.Frame(None, title="My Notebook", size=(410, 335))
    
    panel = wx.Panel(win)
    
    openButton = wx.Button(panel, label="Open")
    saveButton = wx.Button(panel, label="Save")
    filepathTxt = wx.TextCtrl(panel)
    contentTxt = wx.TextCtrl(panel, style=wx.TE_MULTILINE)
    
    
    #绑定事件
    openButton.Bind(wx.EVT_BUTTON, openFileEventHandle)
    saveButton.Bind(wx.EVT_BUTTON, saveFileEventHandle)
    
    
    #默认水平, 放置 文件路径文本框 打开按钮 保存按钮
    # proportion : 占总体的 几分之1
    # flag : expand 扩展
    hbox = wx.BoxSizer() 
    hbox.Add(filepathTxt, proportion=1, flag=wx.EXPAND)
    hbox.Add(openButton, proportion=0, flag=wx.LEFT, border=5)
    hbox.Add(saveButton, proportion=0, flag=wx.LEFT, border=5)
    
    #垂直, 
    bbox = wx.BoxSizer(wx.VERTICAL)
    bbox.Add(hbox, proportion=0, flag=wx.EXPAND|wx.ALL, border=5)
    bbox.Add(contentTxt, proportion=1,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM|wx.RIGHT,border=5)
    
    
    panel.SetSizer(bbox)
    
    win.Show()
    app.MainLoop()