Getting started with wxPython step 10 (application framework)

The meticulous Craig 2020-11-11 16:41:31
getting started wxpython step application


Application framework

In this section , We're going to create a framework for the file manager file_hunter, It copies Krusader The appearance of the ,Krusader It's a Unix File managers available on the system . If we double-click the splitter widget , It will file_hunter Divided into two parts of the same width . If we adjust the size of the main window , The same thing happens .

#file_hunter.py
# The picture material in the code ,https://bugou008.lanzous.com/b00zxubqb password :bugou008
import wx
import os
import time
ID_BUTTON=100
ID_EXIT=200
ID_SPLITTER=300
class MyListCtrl(wx.ListCtrl):
def __init__(self, parent):
wx.ListCtrl.__init__(self, parent, style=wx.LC_REPORT)
images = ['empty.png', 'folder.png', 'py.png',
'image.png', 'pdf.png', 'up16.png']
self.InsertColumn(0, 'Name')
self.InsertColumn(1, 'Ext')
self.InsertColumn(2, 'Size', wx.LIST_FORMAT_RIGHT)
self.InsertColumn(3, 'Modified')
self.SetColumnWidth(0, 220)
self.SetColumnWidth(1, 70)
self.SetColumnWidth(2, 100)
self.SetColumnWidth(3, 420)
self.il = wx.ImageList(16, 16)
for i in images:
self.il.Add(wx.Bitmap(i))
self.SetImageList(self.il, wx.IMAGE_LIST_SMALL)
j = 1
self.InsertItem(0, '..')
self.SetItemImage(0, 5)
files = os.listdir('.')
for i in files:
(name, ext) = os.path.splitext(i)
ex = ext[1:]
size = os.path.getsize(i)
sec = os.path.getmtime(i)
self.InsertItem(j, name)
self.SetItem(j, 1, ex)
self.SetItem(j, 2, str(size) + ' B')
self.SetItem(j, 3, time.strftime('%Y-%m-%d %H:%M', time.localtime(sec)))
if os.path.isdir(i):
self.SetItemImage(j, 1)
elif ex == 'py':
self.SetItemImage(j, 2)
elif ex == 'jpg' or ex =='png':
self.SetItemImage(j, 3)
elif ex == 'pdf':
self.SetItemImage(j, 4)
else:
self.SetItemImage(j, 0)
if (j % 2) == 0:
self.SetItemBackgroundColour(j, '#e6f1f5')
j = j + 1
class Example(wx.Frame):
def __init__(self, *args, **kw):
super(Example, self).__init__(*args, **kw,size=(900, 500))
self.InitUI()
def InitUI(self):
self.splitter = wx.SplitterWindow(self, ID_SPLITTER, style=wx.SP_BORDER)
self.splitter.SetMinimumPaneSize(50)
p1 = MyListCtrl(self.splitter)
p2 = MyListCtrl(self.splitter)
self.splitter.SplitVertically(p1, p2)
self.Bind(wx.EVT_SIZE, self.OnSize)
self.Bind(wx.EVT_SPLITTER_DCLICK, self.OnDoubleClick, id=ID_SPLITTER)
filemenu= wx.Menu()
filemenu.Append(ID_EXIT, "E&xit"," Terminate the program")
editmenu = wx.Menu()
netmenu = wx.Menu()
showmenu = wx.Menu()
configmenu = wx.Menu()
helpmenu = wx.Menu()
menuBar = wx.MenuBar()
menuBar.Append(filemenu, "&File")
menuBar.Append(editmenu, "&Edit")
menuBar.Append(netmenu, "&Net")
menuBar.Append(showmenu, "&Show")
menuBar.Append(configmenu, "&Config")
menuBar.Append(helpmenu, "&Help")
self.SetMenuBar(menuBar)
self.Bind(wx.EVT_MENU, self.OnExit, id=ID_EXIT)
tb = self.CreateToolBar( wx.TB_HORIZONTAL | wx.NO_BORDER |
wx.TB_FLAT)
tb.AddTool(10, 'Previous', wx.Bitmap('previous.png'), shortHelp='Previous')
tb.AddTool(20, 'Up', wx.Bitmap('up.png'), shortHelp='Up one directory')
tb.AddTool(30, 'Home', wx.Bitmap('home.png'), shortHelp='Home')
tb.AddTool(40, 'Refresh', wx.Bitmap('refresh.png'), shortHelp='Refresh')
tb.AddSeparator()
tb.AddTool(50, 'Edit text', wx.Bitmap('edit.png'), shortHelp='Edit text')
tb.AddTool(60, 'Terminal', wx.Bitmap('terminal.png'), shortHelp='Terminal')
tb.AddSeparator()
tb.AddTool(70, 'Help', wx.Bitmap('help.png'), shortHelp='Show help')
tb.Realize()
self.sizer2 = wx.BoxSizer(wx.HORIZONTAL)
button1 = wx.Button(self, ID_BUTTON + 1, "F3 View")
button2 = wx.Button(self, ID_BUTTON + 2, "F4 Edit")
button3 = wx.Button(self, ID_BUTTON + 3, "F5 Copy")
button4 = wx.Button(self, ID_BUTTON + 4, "F6 Move")
button5 = wx.Button(self, ID_BUTTON + 5, "F7 Mkdir")
button6 = wx.Button(self, ID_BUTTON + 6, "F8 Delete")
button7 = wx.Button(self, ID_BUTTON + 7, "F9 Rename")
button8 = wx.Button(self, ID_EXIT, "F10 Quit")
self.sizer2.Add(button1, 1, wx.EXPAND)
self.sizer2.Add(button2, 1, wx.EXPAND)
self.sizer2.Add(button3, 1, wx.EXPAND)
self.sizer2.Add(button4, 1, wx.EXPAND)
self.sizer2.Add(button5, 1, wx.EXPAND)
self.sizer2.Add(button6, 1, wx.EXPAND)
self.sizer2.Add(button7, 1, wx.EXPAND)
self.sizer2.Add(button8, 1, wx.EXPAND)
self.Bind(wx.EVT_BUTTON, self.OnExit, id=ID_EXIT)
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.splitter,1,wx.EXPAND)
self.sizer.Add(self.sizer2,0,wx.EXPAND)
self.SetSizer(self.sizer)
# size = wx.DisplaySize()
# self.SetSize(size)
sb = self.CreateStatusBar()
sb.SetStatusText(os.getcwd())
self.SetTitle("File Hunter")
self.Center()
def OnExit(self, e):
self.Close(True)
def OnSize(self, e):
size = self.GetSize()
self.splitter.SetSashPosition(size.x / 2)
e.Skip()
def OnDoubleClick(self, e):
size = self.GetSize()
self.splitter.SetSashPosition(size.x / 2)
def main():
app = wx.App()
ex = Example(None)
ex.Show()
app.MainLoop()
if __name__ == '__main__':
main()

This example creates a user interface for the double sided board file manager .

class MyListCtrl(wx.ListCtrl):
def __init__(self, parent):
wx.ListCtrl.__init__(self, parent, style=wx.LC_REPORT)

The main areas of the application are wx.ListCtrl Small parts occupy .

self.il = wx.ImageList(16, 16)
for i in images:
self.il.Add(wx.Bitmap(i))
self.SetImageList(self.il, wx.IMAGE_LIST_SMALL)

The list control contains a list image , Used to indicate file type .

files = os.listdir('.')
for i in files:
(name, ext) = os.path.splitext(i)
ex = ext[1:]
size = os.path.getsize(i)
sec = os.path.getmtime(i)
...

We get the contents of the current working directory , And determine the file extension 、 Size and last modification time .

if os.path.isdir(i):
self.SetItemImage(j, 1)
elif ex == 'py':
self.SetItemImage(j, 2)
elif ex == 'jpg' or ex == 'png':
self.SetItemImage(j, 3)
elif ex == 'pdf':
self.SetItemImage(j, 4)
else:
self.SetItemImage(j, 0)

Select the image of the file according to its extension .

self.splitter = wx.SplitterWindow(self, ID_SPLITTER, style=wx.SP_BORDER)
self.splitter.SetMinimumPaneSize(50)
p1 = MyListCtrl(self.splitter)
p2 = MyListCtrl(self.splitter)
self.splitter.SplitVertically(p1, p2)

We have two list controls that are vertically divided by the splitter component .

menuBar = wx.MenuBar()
menuBar.Append(filemenu, "&File")
menuBar.Append(editmenu, "&Edit")
...

We have a menubar.

tb = self.CreateToolBar( wx.TB_HORIZONTAL | wx.NO_BORDER |
wx.TB_FLAT)
tb.AddTool(10, 'Previous', wx.Bitmap('images/previous.png'), shortHelp='Previous')
tb.AddTool(20, 'Up', wx.Bitmap('images/up.png'), shortHelp='Up one directory')
...

We have a toolbar.

self.sizer2 = wx.BoxSizer(wx.HORIZONTAL)
button1 = wx.Button(self, ID_BUTTON + 1, "F3 View")
button2 = wx.Button(self, ID_BUTTON + 2, "F4 Edit")
button3 = wx.Button(self, ID_BUTTON + 3, "F5 Copy")
button4 = wx.Button(self, ID_BUTTON + 4, "F6 Move")
...

Eight buttons are placed in a horizontal scaler , It's added to the bottom of the window .

<img src="https://mymarkdowm.oss-cn-beijing.aliyuncs.com/markdownimg/image-20201111153229739.png" alt="image-20201111153229739" style="zoom:50%;" />

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