wxPython/misc/widgetLayoutTest.py

   1 """
   2 This test app is meant to help check if a widget has a good
   3 DoGetBestSize method (in C++) by allowing the user to dynamically
   4 create any non-toplevel widget which will be placed in a Sizer
   5 designed to show how the widget will be sized naturally.
   6 """
   7
   8 import wx
   9 import sys
  10 import os
  11
  12
  13 class LayoutTestFrame(wx.Frame):
  14     def __init__(self):
  15         wx.Frame.__init__(self, None, -1, "Widget Layout Tester")
  16
  17         p = wx.Panel(self)
  18
  19         # Create control widgets
  20         self.testHistory = wx.ListBox(p, -1, size=(150, 250))
  21         self.moduleName = wx.TextCtrl(p, -1, "wx")
  22         self.className  = wx.TextCtrl(p, -1, "")
  23         self.parameters = wx.TextCtrl(p, -1, "")
  24         self.expression = wx.TextCtrl(p, -1, "", style=wx.TE_READONLY)
  25         self.docstring  = wx.TextCtrl(p, -1, "", size=(1,125),
  26                                       style=wx.TE_READONLY|wx.TE_MULTILINE|wx.TE_DONTWRAP)
  27
  28
  29         addBtn = wx.Button(p, -1, "Add")
  30         remBtn = wx.Button(p, -1, "Remove")
  31         repBtn = wx.Button(p, -1, "Replace")
  32         createBtn = wx.Button(p, -1, " Create Widget ")
  33         createBtn.SetDefault()
  34         destroyBtn = wx.Button(p, -1, "Destroy Widget")
  35         clearBtn = wx.Button(p, -1, "Clear")
  36
  37         self.createBtn = createBtn
  38         self.destroyBtn = destroyBtn
  39
  40         bottomPanel = wx.Panel(p, style=wx.SUNKEN_BORDER, name="bottomPanel")
  41         bottomPanel.SetSizeHints((640,240))
  42         bottomPanel.SetDefaultBackgroundColour("light blue")
  43
  44         self.testPanel = wx.Panel(bottomPanel, name="testPanel")
  45         self.testPanel.SetDefaultBackgroundColour((205, 183, 181)) # mistyrose3
  46         self.testWidget = None
  47
  48
  49         # setup event bindings
  50         self.Bind(wx.EVT_TEXT, self.OnUpdate, self.moduleName)
  51         self.Bind(wx.EVT_TEXT, self.OnUpdate, self.className)
  52         self.Bind(wx.EVT_TEXT, self.OnUpdate, self.parameters)
  53         self.Bind(wx.EVT_UPDATE_UI, self.OnEnableCreate, createBtn)
  54         self.Bind(wx.EVT_UPDATE_UI, self.OnEnableDestroy, destroyBtn)
  55         self.Bind(wx.EVT_BUTTON, self.OnCreateWidget, createBtn)
  56         self.Bind(wx.EVT_BUTTON, self.OnDestroyWidget, destroyBtn)
  57         self.Bind(wx.EVT_BUTTON, self.OnClear, clearBtn)
  58
  59         self.Bind(wx.EVT_CLOSE, self.OnSaveHistory)
  60
  61         self.Bind(wx.EVT_BUTTON, self.OnAddHistory, addBtn)
  62         self.Bind(wx.EVT_BUTTON, self.OnRemoveHistory, remBtn)
  63         self.Bind(wx.EVT_BUTTON, self.OnReplaceHistory, repBtn)
  64         self.Bind(wx.EVT_LISTBOX, self.OnHistorySelect, self.testHistory)
  65         self.Bind(wx.EVT_LISTBOX_DCLICK, self.OnHistoryActivate, self.testHistory)
  66
  67
  68         # setup the layout
  69         mainSizer = wx.BoxSizer(wx.VERTICAL)
  70         topSizer  = wx.BoxSizer(wx.HORIZONTAL)
  71         ctlsSizer = wx.FlexGridSizer(2, 2, 5, 5)
  72         ctlsSizer.AddGrowableCol(1)
  73         btnSizer =  wx.BoxSizer(wx.HORIZONTAL)
  74
  75         topSizer.Add(self.testHistory, 0, wx.RIGHT, 30)
  76
  77         ctlsSizer.Add((1,25))
  78         ctlsSizer.Add((1,25))
  79         ctlsSizer.Add(wx.StaticText(p, -1, "Module name:"),
  80                       0, wx.ALIGN_RIGHT|wx.ALIGN_CENTER_VERTICAL)
  81         ctlsSizer.Add(self.moduleName, 0, wx.EXPAND)
  82         ctlsSizer.Add(wx.StaticText(p, -1, "Class name:"),
  83                       0, wx.ALIGN_RIGHT|wx.ALIGN_CENTER_VERTICAL)
  84         ctlsSizer.Add(self.className, 0, wx.EXPAND)
  85         ctlsSizer.Add(wx.StaticText(p, -1, "Parameters:"),
  86                       0, wx.ALIGN_RIGHT|wx.ALIGN_CENTER_VERTICAL)
  87         ctlsSizer.Add(self.parameters, 0, wx.EXPAND)
  88         ctlsSizer.Add(wx.StaticText(p, -1, "Expression:"),
  89                       0, wx.ALIGN_RIGHT|wx.ALIGN_CENTER_VERTICAL)
  90         ctlsSizer.Add(self.expression, 0, wx.EXPAND)
  91         ctlsSizer.Add(wx.StaticText(p, -1, "DocString:"), 0, wx.ALIGN_RIGHT)
  92         ctlsSizer.Add(self.docstring, 0, wx.EXPAND)
  93         topSizer.Add(ctlsSizer, 1)
  94
  95         btnSizer.Add((5,5))
  96         btnSizer.Add(addBtn, 0, wx.RIGHT, 5)
  97         btnSizer.Add(remBtn, 0, wx.RIGHT, 5)
  98         btnSizer.Add(repBtn, 0, wx.RIGHT, 5)
  99         btnSizer.Add((0,0), 1)
 100         btnSizer.Add(createBtn, 0, wx.RIGHT, 5)
 101         btnSizer.Add(destroyBtn, 0, wx.RIGHT, 5)
 102         btnSizer.Add(clearBtn, 0, wx.RIGHT, 5)
 103         btnSizer.Add((0,0), 1)
 104
 105         mainSizer.Add(topSizer, 0, wx.EXPAND|wx.ALL, 10)
 106         mainSizer.Add(btnSizer, 0, wx.EXPAND)
 107         mainSizer.Add((10,10))
 108         ##mainSizer.Add(wx.StaticLine(p, -1), 0, wx.EXPAND)
 109         mainSizer.Add(bottomPanel, 1, wx.EXPAND)
 110
 111         self.bottomSizer = sz = wx.BoxSizer(wx.VERTICAL)
 112         sz.Add((0,0), 1)
 113         sz.Add(self.testPanel, 0, wx.ALIGN_CENTER)
 114         sz.Add((0,0), 1)
 115         bottomPanel.SetSizer(sz)
 116
 117         p.SetSizerAndFit(mainSizer)
 118         self.Fit()
 119
 120         self.PopulateHistory()
 121
 122
 123
 124
 125     def PopulateHistory(self):
 126         """
 127         Load and eval a list of lists from a file, load the contents
 128         into self.testHistory
 129         """
 130         fname = os.path.join(os.path.dirname(sys.argv[0]),
 131                              'widgetLayoutTest.cfg')
 132         try:
 133             self.history = eval(open(fname).read())
 134         except:
 135             self.history = []
 136
 137         self.testHistory.Clear()
 138
 139         for idx in range(len(self.history)):
 140             item = self.history[idx]
 141             # check if it is too short
 142             while len(item) < 3:
 143                 item.append('')
 144
 145             # add it to the listbox
 146             self.testHistory.Append(item[0] + '.' + item[1])
 147
 148         self.needSaved = False
 149
 150
 151     def OnSaveHistory(self, evt):
 152         if self.needSaved:
 153             fname = os.path.join(os.path.dirname(sys.argv[0]),
 154                                  'widgetLayoutTest.cfg')
 155             f = open(fname, 'wb')
 156             f.write('[\n')
 157             for item in self.history:
 158                 f.write(str(item) + ',\n')
 159             f.write(']\n')
 160             f.close()
 161         evt.Skip()
 162
 163
 164     def OnAddHistory(self, evt):
 165         moduleName = self.moduleName.GetValue()
 166         className  = self.className.GetValue()
 167         parameters = self.parameters.GetValue()
 168
 169         item = [str(moduleName), str(className), str(parameters)]
 170         self.history.append(item)
 171         self.testHistory.Append(item[0] + '.' + item[1])
 172
 173         self.testHistory.SetSelection(len(self.history)-1)
 174         self.needSaved = True
 175
 176
 177     def OnRemoveHistory(self, evt):
 178         idx = self.testHistory.GetSelection()
 179         if idx != wx.NOT_FOUND:
 180             del self.history[idx]
 181             self.testHistory.Delete(idx)
 182         self.needSaved = True
 183
 184
 185     def OnReplaceHistory(self, evt):
 186         idx = self.testHistory.GetSelection()
 187         if idx != wx.NOT_FOUND:
 188             moduleName = self.moduleName.GetValue()
 189             className  = self.className.GetValue()
 190             parameters = self.parameters.GetValue()
 191
 192             item = [str(moduleName), str(className), str(parameters)]
 193             self.history[idx] = item
 194             self.testHistory.SetString(idx, item[0] + '.' + item[1])
 195         self.needSaved = True
 196
 197
 198     def OnHistorySelect(self, evt):
 199         idx = self.testHistory.GetSelection()
 200         if idx != wx.NOT_FOUND:
 201             item = self.history[idx]
 202             self.moduleName.SetValue(item[0])
 203             self.className.SetValue(item[1])
 204             self.parameters.SetValue(item[2])
 205
 206
 207     def OnHistoryActivate(self, evt):
 208         btn = self.testHistory.GetParent().GetDefaultItem()
 209         if btn is not None:
 210             e = wx.CommandEvent(wx.wxEVT_COMMAND_BUTTON_CLICKED, btn.GetId())
 211             btn.Command(e)
 212
 213
 214
 215     def OnUpdate(self, evt):
 216         # get the details from the form
 217         moduleName = self.moduleName.GetValue()
 218         className  = self.className.GetValue()
 219         parameters = self.parameters.GetValue()
 220
 221         expr = "%s.%s(self.testPanel, %s)" % (moduleName, className, parameters)
 222         self.expression.SetValue(expr)
 223
 224         docstring = ""
 225         try:
 226             docstring = eval("%s.%s.__init__.__doc__" % (moduleName, className))
 227         except:
 228             pass
 229         self.docstring.SetValue(docstring)
 230
 231
 232     def OnEnableDestroy(self, evt):
 233         evt.Enable(self.testWidget is not None)
 234
 235     def OnEnableCreate(self, evt):
 236         evt.Enable(self.testWidget is None)
 237
 238
 239     def OnCreateWidget(self, evt):
 240         if self.testWidget is not None:
 241             return
 242
 243         # get the details from the form
 244         moduleName = self.moduleName.GetValue()
 245         className  = self.className.GetValue()
 246         parameters = self.parameters.GetValue()
 247         expr       = self.expression.GetValue()
 248
 249         # make sure the module is imported already
 250         if not sys.modules.has_key(moduleName):
 251             try:
 252                 m = __import__(moduleName)
 253             except importError:
 254                 wx.MessageBox("Unable to import module!", "Error")
 255                 return
 256
 257         # create the widget
 258         try:
 259             w = eval(expr)
 260         except Exception, e:
 261             wx.MessageBox("Got a '%s' Exception!" % e.__class__.__name__, "Error")
 262             import traceback
 263             traceback.print_exc()
 264             return
 265
 266         # Put the widget in a sizer and the sizer in the testPanel
 267         sizer = wx.BoxSizer(wx.VERTICAL)
 268         sizer.Add(w, 0, wx.ALL, 5)
 269         self.testPanel.SetSizer(sizer)
 270         self.testWidget = w
 271         self.bottomSizer.Layout()
 272
 273         # make the destroy button be default now
 274         self.destroyBtn.SetDefault()
 275
 276         if False:
 277             print 'w size', w.GetSize()
 278             print 'w minsize', w.GetMinSize()
 279             print 'w bestsize', w.GetBestSize()
 280             print 'w abstsize', w.GetAdjustedBestSize()
 281
 282             tp = self.testPanel
 283             #print tp.GetSizer()
 284             print 'tp size', tp.GetSize()
 285             print 'tp minsize', tp.GetMinSize()
 286             print 'tp bestsize', tp.GetBestSize()
 287             print 'tp abstsize', tp.GetAdjustedBestSize()
 288
 289
 290
 291     def OnDestroyWidget(self, evt):
 292         self.testWidget.Destroy()
 293         self.testWidget = None
 294         self.testPanel.SetSizer(None, True)
 295         self.testPanel.Refresh()
 296
 297         # ensure the panel shrinks again
 298         self.testPanel.SetSizeHints((20,20))
 299         self.bottomSizer.Layout()
 300         self.testPanel.SetSizeHints(wx.DefaultSize)
 301
 302         # make the create button be default now
 303         self.createBtn.SetDefault()
 304
 305
 306     def OnClear(self, evt):
 307         self.moduleName.SetValue("")
 308         self.className.SetValue("")
 309         self.parameters.SetValue("")
 310         self.expression.SetValue("")
 311         self.docstring.SetValue("")
 312
 313
 314
 315 app = wx.PySimpleApp(redirect=False)
 316 frame = LayoutTestFrame()
 317 app.SetTopWindow(frame)
 318 frame.Show()
 319 app.MainLoop()
 320