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wxWidgets/wxPython/demo/MimeTypesManager.py
Robin Dunn 4a340a90d1 Updated layout 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25106 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2004-01-08 22:20:47 +00:00

343 lines
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Python
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#----------------------------------------------------------------------
# Name: wxMimeTypesManager
# Purpose: Demonstrate use of wx.MimeTypesManager, wx.FileType
#
# Author: Jeff Grimmett (grimmtoo@softhome.net), adapted from original
# .wdr-derived demo
#
# Created: 12/31/03
# RCS-ID: $Id$
# Copyright:
# Licence: wxWindows license
#----------------------------------------------------------------------
#
import pprint
import wx
import images
#----------------------------------------------------------------------------
class MimeTypesDemoPanel(wx.Panel):
def __init__(self, parent, log):
self.log = log
wx.Panel.__init__(self, parent, -1)
# This will be used for all of the labels that follow (bold label)
bfont = wx.Font(
self.GetFont().GetPointSize(),
self.GetFont().GetFamily(),
self.GetFont().GetStyle(),
wx.BOLD
)
# Contains everything
tsizer = wx.BoxSizer(wx.VERTICAL)
# Contains upper controls
usizer = wx.BoxSizer(wx.HORIZONTAL)
# Text control for ext / type entry plus label.
t = wx.StaticText(self, -1, 'Extension / MIME type: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
usizer.Add(t, 0, wx.ALL | wx.EXPAND | wx.ALIGN_CENTER | wx.ALIGN_CENTER_VERTICAL, 2)
self.ext = wx.TextCtrl(self, -1, value="wav", style = wx.TE_PROCESS_ENTER )
usizer.Add(self.ext, 0, wx.ALL | wx.ALIGN_TOP, 4)
self.Bind(wx.EVT_TEXT_ENTER, self.OnLookup, self.ext)
# Select how to look it up
self.useExt = wx.RadioButton(self, -1, "By extension", style = wx.RB_GROUP)
self.useMime = wx.RadioButton(self, -1, "By MIME type")
usizer.Add(self.useExt, 0, wx.ALL | wx.ALIGN_CENTER | wx.ALIGN_CENTER_VERTICAL, 4)
usizer.Add(self.useMime, 0, wx.ALL | wx.ALIGN_CENTER | wx.ALIGN_CENTER_VERTICAL, 4)
self.useExt.SetValue(1)
# Trigger a lookup (hitting ENTER in the text ctrl will do the same thing)
self.go = wx.Button(self, -1, "Go get it!")
usizer.Add(self.go, 0, wx.ALL | wx.ALIGN_CENTER | wx.ALIGN_CENTER_VERTICAL, 4)
self.Bind(wx.EVT_BUTTON, self.OnLookup, self.go)
# StaticBox with larger label than usual
lbox = wx.StaticBox(self, -1, 'wx.FileType')
lbox.SetFont(
wx.Font(
self.GetFont().GetPointSize() * 2,
self.GetFont().GetFamily(),
self.GetFont().GetStyle(),
wx.BOLD
))
lsizer = wx.StaticBoxSizer(lbox, wx.HORIZONTAL)
# Contains the wx.FileType info
llsizer = wx.GridBagSizer(2, 2)
llsizer.AddGrowableCol(2)
#------- Icon info
t = wx.StaticText(self, -1, 'GetIconInfo: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (0, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.icon = wx.StaticBitmap(self, -1, images.getNoIconBitmap())
llsizer.Add(self.icon, (0, 1), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.iconsource = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY )
llsizer.Add(self.iconsource, (0, 2), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.iconoffset = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY )
llsizer.Add(self.iconoffset, (0, 3), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
#------- MIME Type
t = wx.StaticText(self, -1, 'GetMimeType: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (1, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.mimetype = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY )
llsizer.Add(self.mimetype, (1, 1), (1, 3), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
#------- MIME Types
t = wx.StaticText(self, -1, 'GetMimeTypes: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (2, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.mimetypes = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY )
llsizer.Add(self.mimetypes, (2, 1), (1, 3), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
#------- Extensions
t = wx.StaticText(self, -1, 'GetExtensions: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (3, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.extensions = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY )
llsizer.Add(self.extensions, (3, 1), (1, 3), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
#------- Description
t = wx.StaticText(self, -1, 'GetDescription: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (4, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.description = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY)
llsizer.Add(self.description, (4, 1), (1, 3), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
#------- Open command
t = wx.StaticText(self, -1, 'GetOpenCommand: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (5, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.opencommand = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY )
llsizer.Add(self.opencommand, (5, 1), (1, 3), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
#------- Print command
t = wx.StaticText(self, -1, 'GetPrintCommand: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (6, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.printcommand = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY )
llsizer.Add(self.printcommand, (6, 1), (1, 3), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
#------- All commands
t = wx.StaticText(self, -1, 'GetAllCommands: ', style = wx.ALIGN_RIGHT )
t.SetFont(bfont)
llsizer.Add(t, (7, 0), (1, 1), wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 2)
self.allcommands = wx.TextCtrl(self, -1, value="", style = wx.TE_READONLY | wx.TE_DONTWRAP | wx.TE_MULTILINE )
# Set the default height to be smaller than normal (for
# multi-line) so the sizer can then expand it to whatever
# space is available
self.allcommands.SetSize((-1, 20))
llsizer.Add(self.allcommands, (7, 1), (1, 3), wx.ALL | wx.GROW | wx.ALIGN_CENTER, 2)
# Tell the sizer to expand this row as needed
llsizer.AddGrowableRow(7)
#----------------------------------------------------------------------------
lrsizer = wx.BoxSizer(wx.VERTICAL)
#------- List box with known MIME types
t = wx.StaticText(self, -1, 'Known MIME types')
t.SetFont(bfont)
lrsizer.Add(t, 0, wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 4)
self.mimelist = wx.ListBox(self, -1, choices=[], style = wx.LB_SINGLE | wx.LB_SORT)
lrsizer.Add(self.mimelist, 1, wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 4)
self.Bind(wx.EVT_LISTBOX, self.OnListbox, self.mimelist)
#----------------------------------------------------------------------------
lsizer.Add(llsizer, 1, wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 4)
lsizer.Add(lrsizer, 0, wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 4)
#----------------------------------------------------------------------------
tsizer.Add(usizer, 0, wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 4)
tsizer.Add(lsizer, 1, wx.ALL | wx.EXPAND | wx.ALIGN_CENTER, 4)
#----------------------------------------------------------------------------
self.SetSizer(tsizer)
tsizer.Fit(self)
# Populate the Known MIME types list with what is in the database
mtypes = wx.TheMimeTypesManager.EnumAllFileTypes()
for mt in mtypes:
self.mimelist.Append(mt)
# Do a lookup of *.wav for a starting position
self.OnLookup()
# Grab the selection from the listbox, push that into
# the text box at top, select 'MIME', and then look it up.
def OnListbox(self, event):
mimetype = event.GetString()
self.ext.SetValue(mimetype)
self.useMime.SetValue(1)
self.OnLookup()
# Look up a given file extension or MIME type.
def OnLookup(self, event=None):
txt = self.ext.GetValue()
# For MIME lookups
if self.useMime.GetValue() == 1:
fileType = wx.TheMimeTypesManager.GetFileTypeFromMimeType(txt)
msg = "Mime type"
# Select the entered value in the list
if fileType:
if self.mimelist.FindString(txt) != -1:
self.mimelist.SetSelection(self.mimelist.FindString(txt))
# Must be an extension lookup
else:
fileType = wx.TheMimeTypesManager.GetFileTypeFromExtension(txt)
msg = "File extension"
# Select the entered value in the list
if fileType:
if self.mimelist.FindString(str(fileType.GetMimeType())) != -1:
# Using CallAfter to ensure that GUI is ready before trying to
# select it (otherwise, it's selected but not visible)
wx.CallAfter(self.mimelist.SetSelection, self.mimelist.FindString(str(fileType.GetMimeType())))
if fileType is None:
wx.MessageBox(msg + " not found.", "Oops!")
else:
self.Update(fileType)
# Populate the wx.FileType fields with actual values.
def Update(self, ft):
#------- Icon info
info = ft.GetIconInfo()
if info is None:
bmp = images.getNoIconBitmap()
self.icon.SetBitmap(bmp)
self.iconsource.SetValue("")
self.iconoffset.SetValue("")
else:
icon, file, idx = info
if icon.Ok():
self.icon.SetIcon(icon)
else:
bmp = images.getNoIconBitmap()
self.icon.SetBitmap(bmp)
self.iconsource.SetValue(file)
self.iconoffset.SetValue(str(idx))
#------- MIME type
self.mimetype.SetValue(str(ft.GetMimeType()))
#------- MIME types
self.mimetypes.SetValue(str(ft.GetMimeTypes()))
#------- Associated extensions
self.extensions.SetValue(str(ft.GetExtensions()))
#------- Description of file type
self.description.SetValue(str(ft.GetDescription()))
#------- Prep a fake command line command
extList = ft.GetExtensions()
if extList:
ext = extList[0]
if ext[0] == ".": ext = ext[1:]
else:
ext = ""
filename = "SPAM" + "." + ext
mime = ft.GetMimeType() or ""
#------- OPEN command
cmd = ft.GetOpenCommand(filename, mime)
self.opencommand.SetValue(str(cmd))
#------- PRINT command
cmd = ft.GetPrintCommand(filename, mime)
self.printcommand.SetValue(str(cmd))
#------- All commands
all = ft.GetAllCommands(filename, mime)
if all is None:
self.allcommands.SetValue("")
else:
verbs, commands = all
text = pprint.pformat(map(None, verbs, commands))
self.allcommands.SetValue(text)
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = MimeTypesDemoPanel(nb, log)
return win
#----------------------------------------------------------------------
overview = """\
The <b>wx.MimeTypesManager</b> class allows the application to retrieve the
information about all known MIME types from a system-specific location and the
filename extensions to the MIME types and vice versa. After initialization the
methods <b>GetFileTypeFromMimeType()</b> and <b>GetFileTypeFromExtension()</b>
may be called: they will return a <b>wx.FileType</b> object which may be further
queried for file description, icon and other attributes.
A global instance of <b>wx.MimeTypesManager</b> is always available as
<b>wx.TheMimeTypesManager</b>. It is recommended to use this instance instead
of creating your own because gathering MIME information may take quite a long
on Unix systems.
This demo shows how to use wx.TheMimeTypesManager to list all known MIME types
and retrieve that information as a wx.FileType from either an extension or
MIME type.
For further information please consult the wxWindows documentation for
<b>wx.MimeTypesManager</b> and <b>wx.FileType</b>.
"""
#----------------------------------------------------------------------
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])])
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