utils/wxPython/demo/htmlwidget.py

   1 from wxPython.wx import *
   2 from wxPython.html import *
   3 import sys,string
   4
   5 # A bunch of simple widgets, all somehow derived from wxWindow
   6 class Widget1(wxWindow):
   7     def __init__(self, parent, param):
   8         wxWindow.__init__(self, parent, -1)
   9         self.text = wxTextCtrl(self, -1, param['param_str'], wxPoint(5,5),
  10                            wxSize(200,150), wxTE_MULTILINE)
  11         but = wxButton(self, 1001, "Click me", wxPoint(50,160), wxSize(100,30))
  12         EVT_BUTTON(self, 1001, self.OnButton)
  13         self.SetSize(wxSize(210,200))
  14     def OnButton(self, event):
  15         self.text.AppendText( "Click!\n" )
  16
  17 class Widget2(wxButton):
  18     def __init__(self, parent, param):
  19         wxButton.__init__(self, parent, int(param['id']), param['title'])
  20
  21 class Widget3(wxTextCtrl):
  22     def __init__(self, parent, param):
  23         wxTextCtrl.__init__(self, parent, -1, "No clicks")
  24         self.clicked = 0;
  25         EVT_BUTTON(parent, int(param['button_id']), self.OnButton)
  26     def OnButton(self, event):
  27         self.clicked = self.clicked + 1
  28         self.SetValue("%d clicks" % (self.clicked,))
  29
  30 # make the widgets known in the widget module (aka htmlc)
  31 widget.Widget1 = Widget1
  32 widget.Widget2 = Widget2
  33 widget.Widget3 = Widget3
  34
  35 # our default page
  36 default_page = """
  37 <H2>wxPython widgets go HTML</H2>
  38 A bunch of wxPython widgets are scattered on this HTML page.
  39 Here's one:
  40 <center><python class="Widget1" greeting="Hello World"></center>
  41 <hr>
  42 Here's another:
  43 <center><python class="Widget2" float=70 id=1002 title="Button A"></center>
  44 It should always take up 70% of the page width.
  45 <p>And then there's this, listening to button A:
  46 <python class="Widget3" button_id=1002></p>
  47 """
  48
  49 # our explanation
  50 apology = """
  51 For some bizarre reason, it takes forever and a day to display the
  52 widgets if they are constructed in the frame's constructor. This
  53 only happens in MSW, wxGTK works fine.
  54 <p>Select <I>File->Show it</I> to draw the widgets."""
  55
  56 default_page = default_page + "The HTML code for this page is\n <pre>" + default_page + "</pre>"
  57
  58
  59 class HtmlViewer(wxFrame):
  60         def __init__(self, parent, id, title, pos = wxDefaultPosition, size = wxSize(400,400)):
  61                 wxFrame.__init__(self, parent, id, title, pos, size)
  62                 self.CreateStatusBar(1)
  63                 self.html = wxHtmlWindow(self)
  64                 self.html.SetRelatedFrame(self, "HTML Viewer:  \%s")
  65                 self.html.SetRelatedStatusBar(0)
  66                 mbar = wxMenuBar()
  67                 menu = wxMenu()
  68                 menu.Append(1500, "Show it")
  69                 menu.Append(1503, "Exit")
  70                 mbar.Append(menu, "File")
  71                 EVT_MENU(self, 1500, self.OnShowIt)
  72                 EVT_MENU(self, 1503, self.OnClose)
  73                 self.SetMenuBar(mbar)
  74                 # change apology below to default_page, if you dare!
  75                 self.html.SetPage( default_page )
  76         def OnClose(self,event):
  77                 self.Destroy()
  78         def OnShowIt(self,event):
  79                 self.html.SetPage( default_page )
  80                 # now quickly remove the menu option, to hide that
  81                 # other bug; namely that widgets aren't removed when the
  82                 # HTML page is.
  83                 self.GetMenuBar().Enable(1500, FALSE)
  84
  85 class MyApp(wxApp):
  86         def OnInit(self):
  87                 frame = HtmlViewer(NULL, -1, "HTML Viewer")
  88                 frame.Show(TRUE)
  89                 self.SetTopWindow(frame)
  90                 return TRUE
  91
  92 wxImage_AddHandler(wxPNGHandler())
  93 wxImage_AddHandler(wxGIFHandler())
  94 wxImage_AddHandler(wxJPEGHandler())
  95
  96 theApp = MyApp(0)
  97 theApp.MainLoop()