python实现的文本编辑器

来源：互联网发布：朝阳永续数据库编辑：程序博客网时间：2024/06/11 02:17
wxpython实现的文本编辑器
效果如下：
主要功能：
1.编辑保存文本，打开修改文本
2.常用快捷键，复制，粘贴，全选等
3.支持撤销功能
4.支持弹出式菜单
代码如下：
#encoding=utf-8import wximport osclass MyFrame(wx.Frame):    def __init__(self):        self.file=''        self.content=[]        self.count=0        self.width=700        self.height=500        wx.Frame.__init__(self,None,-1,u'记事本',size=(self.width,self.height))        self.panel=wx.Panel(self,-1)        menubar=wx.MenuBar()        menu1=wx.Menu()        menubar.Append(menu1,u'文件')        menu1.Append(1001,u'打开')        menu1.Append(1002,u'保存')        menu1.Append(1003,u'另存为')        menu1.Append(1004,u'退出')        menu2=wx.Menu()        menubar.Append(menu2,u'编辑')        menu2.Append(2001,u'撤销')        menu2.Append(2002,u'清空')        menu2.Append(2003,u'剪切  Ctrl + X')        menu2.Append(2004,u'复制  Ctrl + C')        menu2.Append(2005,u'粘贴  Ctrl + V ')        menu2.Append(2006,u'全选  Ctrl + A',)        menu=wx.Menu()        ctrla=menu.Append(-1, "\tCtrl-A")        ctrlc=menu.Append(-1, "\tCtrl-C")        ctrlx=menu.Append(-1, "\tCtrl-X")        ctrlv=menu.Append(-1, "\tCtrl-V")        ctrls=menu.Append(-1, "\tCtrl-S")        menubar.Append(menu,'')        self.SetMenuBar(menubar)        self.Bind(wx.EVT_MENU, self.OnSelect, ctrla)        self.Bind(wx.EVT_MENU, self.OnCopy,ctrlc)        self.Bind(wx.EVT_MENU, self.OnCut,ctrlc)        self.Bind(wx.EVT_MENU, self.OnPaste,ctrlv)        self.Bind(wx.EVT_MENU, self.OnTSave, ctrls)        self.Bind(wx.EVT_MENU, self.OnOpen, id=1001)        self.Bind(wx.EVT_MENU, self.OnSave, id=1002)        self.Bind(wx.EVT_MENU, self.OnSaveAll, id=1003)        self.Bind(wx.EVT_MENU, self.OnExit, id=1004)        self.Bind(wx.EVT_MENU, self.OnBack, id=2001)        self.Bind(wx.EVT_MENU, self.OnClear, id=2002)        self.Bind(wx.EVT_MENU, self.OnCut, id=2003)        self.Bind(wx.EVT_MENU, self.OnCopy, id=2004)        self.Bind(wx.EVT_MENU, self.OnPaste, id=2005)        self.Bind(wx.EVT_MENU, self.OnSelect, id=2006)        self.Bind(wx.EVT_SIZE, self.OnResize)        new=wx.Image('./icons/new.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        open=wx.Image('./icons/open.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        exit=wx.Image('./icons/exit.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        save=wx.Image('./icons/save.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        saveall=wx.Image('./icons/saveall.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        back=wx.Image('./icons/back.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        go=wx.Image('./icons/go.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        clear=wx.Image('./icons/clear.png',wx.BITMAP_TYPE_PNG).ConvertToBitmap()        toolbar=self.CreateToolBar(wx.TB_HORIZONTAL|wx.TB_TEXT)        toolbar.AddSimpleTool(100,new,'New')        toolbar.AddSimpleTool(200,open,'Open')        toolbar.AddSimpleTool(300,exit,'Exit')        toolbar.AddSimpleTool(400,save,'Save')        toolbar.AddSimpleTool(500,saveall,'Save All')        toolbar.AddSimpleTool(600,back,'Back')        toolbar.AddSimpleTool(700,go,'Go')        toolbar.AddSimpleTool(800,clear,'Clear')        toolbar.Realize()        self.Bind(wx.EVT_TOOL,self.OnTOpen,id=200)        self.Bind(wx.EVT_TOOL,self.OnTExit,id=300)        self.Bind(wx.EVT_TOOL,self.OnTSave,id=400)        self.Bind(wx.EVT_TOOL,self.OnTBack,id=600)        self.Bind(wx.EVT_TOOL,self.OnTGo,id=700)        self.Bind(wx.EVT_TOOL,self.OnTClear,id=800)        self.text=wx.TextCtrl(self.panel,-1,pos=(2,2),size=(self.width-10,self.height-50), style=wx.HSCROLL|wx.TE_MULTILINE)        self.popupmenu = wx.Menu()#创建一个菜单        for text in "Cut  Copy Paste SelectAll".split():#填充菜单            item = self.popupmenu.Append(-1, text)            self.Bind(wx.EVT_MENU, self.OnPopupItemSelected, item)            self.panel.Bind(wx.EVT_CONTEXT_MENU, self.OnShowPopup)#绑定一个显示菜单事件    def OnShowPopup(self, event):#弹出显示        pos = event.GetPosition()        pos = self.panel.ScreenToClient(pos)        self.panel.PopupMenu(self.popupmenu, pos)    def OnPopupItemSelected(self, event):        item = self.popupmenu.FindItemById(event.GetId())        text = item.GetText()        if text=='Cut':            self.OnCut(event)        elif text=='Copy':            self.OnCopy(event)        elif text=='Paste':            self.OnPaste(event)        elif text=='SelectAll':            self.OnSelect(event)    def OnOpen(self,event):        filterFile=" All files (*.*) |*.*"        opendialog=wx.FileDialog(self,u"选择文件",os.getcwd(),"",filterFile,wx.OPEN)        if opendialog.ShowModal()==wx.ID_OK:            self.file=opendialog.GetPath()            f=open(self.file)            self.text.write(f.read())            f.close()        opendialog.Destroy()    def OnTOpen(self,event):        filterFile="All files (*.*) |*.*"        opendialog=wx.FileDialog(self,u"选择文件",os.getcwd(),"",filterFile,wx.OPEN)        if opendialog.ShowModal()==wx.ID_OK:            self.file=opendialog.GetPath()            f=open(self.file)            self.text.write(f.read())            f.close()            self.content.append(self.text.GetValue())        opendialog.Destroy()    def OnSave(self,event):        filterFile="All files (*.*) |*.*"        opendialog=wx.FileDialog(self,u'保存文件',os.getcwd(),"",filterFile,wx.SAVE)        if opendialog.ShowModal()==wx.ID_OK:            self.file=opendialog.GetPath()            self.text.SaveFile(self.file)    def OnTSave(self,event):        if self.file == '':            filterFile="All files (*.*) |*.*"            opendialog=wx.FileDialog(self,u'保存文件',os.getcwd(),"",filterFile,wx.SAVE)            if opendialog.ShowModal()==wx.ID_OK:                self.file=opendialog.GetPath()                self.text.SaveFile(self.file)                self.content.append(self.text.GetValue())                self.count=self.count+1        else:            self.text.SaveFile(self.file)            self.content.append(self.text.GetValue())            self.count=self.count+1    def OnSaveAll(self,event):            pass    def OnExit(self,event):        self.Close()    def OnTExit(self,event):        self.Close()    def OnBack(self,event):        self.text.Undo()    def OnTBack(self,event):        try:            self.count=self.count-1            self.text.SetValue(self.content[self.count])        except IndexError:            self.count=0    def OnTGo(self,event):        try:            self.count=self.count+1            self.text.SetValue(self.content[self.count])        except IndexError:            self.count=len(self.content)-1    def OnClear(self,event):        self.text.Clear()    def OnTClear(self,event):        self.text.Clear()    def OnCut(self,event):        self.text.Cut()    def OnCopy(self,event):        self.text.Copy()    def OnPaste(self,event):        self.text.Paste()    def OnSelect(self,event):        self.text.SelectAll()    def OnResize(self,event):        newsize=self.GetSize()        width=newsize.GetWidth()-10        height=newsize.GetHeight()-50        self.text.SetSize((width,height))        self.text.Refresh()if __name__=='__main__':    app=wx.App()    myFrame=MyFrame()    myFrame.Show()    app.MainLoop()