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