wxPython/demo/GridStdEdRend.py

   1 # 11/25/2003 - Jeff Grimmett (grimmtooth@softhome.net)
   2 #
   3 # o Updated for V2.5
   4 # o There is one wx.Size() I haven't figured out how to get rid of yet.
   5 #
   6
   7 import  random
   8
   9 import  wx
  10 import  wx.grid as  gridlib
  11
  12 #---------------------------------------------------------------------------
  13
  14 class MyCustomRenderer(gridlib.PyGridCellRenderer):
  15     def __init__(self):
  16         gridlib.PyGridCellRenderer.__init__(self)
  17
  18     def Draw(self, grid, attr, dc, rect, row, col, isSelected):
  19         dc.SetBackgroundMode(wxSOLID)
  20         dc.SetBrush(wxBrush(wxBLACK, wxSOLID))
  21         dc.SetPen(wxTRANSPARENT_PEN)
  22         dc.DrawRectangleRect(rect)
  23
  24         dc.SetBackgroundMode(wx.TRANSPARENT)
  25         dc.SetFont(attr.GetFont())
  26
  27         text = grid.GetCellValue(row, col)
  28         colors = ["RED", "WHITE", "SKY BLUE"]
  29         x = rect.x + 1
  30         y = rect.y + 1
  31
  32         for ch in text:
  33             dc.SetTextForeground(random.choice(colors))
  34             dc.DrawText(ch, (x, y))
  35             w, h = dc.GetTextExtent(ch)
  36             x = x + w
  37             if x > rect.right - 5:
  38                 break
  39
  40
  41     def GetBestSize(self, grid, attr, dc, row, col):
  42         text = grid.GetCellValue(row, col)
  43         dc.SetFont(attr.GetFont())
  44         w, h = dc.GetTextExtent(text)
  45         return wx.Size(w, h)
  46
  47
  48     def Clone(self):
  49         return MyCustomRenderer()
  50
  51
  52 #---------------------------------------------------------------------------
  53
  54 rendererDemoData = [
  55     ('GridCellStringRenderer\n(the default)', 'this is a text value', gridlib.GridCellStringRenderer, ()),
  56     ('GridCellNumberRenderer', '12345', gridlib.GridCellNumberRenderer, ()),
  57     ('GridCellFloatRenderer', '1234.5678', gridlib.GridCellFloatRenderer, (6,2)),
  58     ('GridCellBoolRenderer', '1', gridlib.GridCellBoolRenderer, ()),
  59     ('MyCustomRenderer', 'This is my renderer', MyCustomRenderer, ()),
  60     ]
  61
  62 editorDemoData = [
  63     ('GridCellTextEditor\n(the default)', 'Here is some more text', gridlib.GridCellTextEditor, ()),
  64     ('GridCellNumberEditor\nwith min,max', '101', gridlib.GridCellNumberEditor, (5, 10005)),
  65     ('GridCellNumberEditor\nwithout bounds', '101', gridlib.GridCellNumberEditor, ()),
  66     ('GridCellFloatEditor', '1234.5678', gridlib.GridCellFloatEditor, ()),
  67     ('GridCellBoolEditor', '1', gridlib.GridCellBoolEditor, ()),
  68     ('GridCellChoiceEditor', 'one', gridlib.GridCellChoiceEditor, (['one', 'two', 'three', 'four',
  69                                                          'kick', 'Microsoft', 'out the',
  70                                                          'door'], False)),
  71     ]
  72
  73 comboDemoData = [
  74     ('GridCellNumberRenderer\nGridCellNumberEditor', '20792', gridlib.GridCellNumberRenderer, gridlib.GridCellNumberEditor),
  75     ('GridCellBoolRenderer\nGridCellBoolEditor', '1', gridlib.GridCellBoolRenderer, gridlib.GridCellBoolEditor),
  76     ]
  77
  78
  79 class EditorsAndRenderersGrid(gridlib.Grid):
  80     def __init__(self, parent, log):
  81         gridlib.Grid.__init__(self, parent, -1)
  82         self.log = log
  83
  84         self.CreateGrid(25, 8)
  85         renCol = 1
  86         edCol = 4
  87
  88
  89         self.SetCellValue(0, renCol, '''\
  90 Cell Renderers are used to draw
  91 the contents of the cell when they
  92 need to be refreshed.  Different
  93 types of Renderers can be plugged in
  94 to different cells in the grid, it can
  95 even be automatically determined based
  96 on the type of data in the cell.
  97 ''')
  98
  99         self.SetCellValue(0, edCol, '''\
 100 Cell Editors are used when the
 101 value of the cell is edited by
 102 the user.  An editor class is
 103 wrapped around a an object
 104 derived from wxControl and it
 105 implements some methods required
 106 to integrate with the grid.
 107 ''')
 108
 109         self.SetCellValue(16, renCol, '''\
 110 Here are some combinations of Editors and
 111 Renderers used together.
 112 ''')
 113
 114         row = 2
 115
 116         for label, value, renderClass, args in rendererDemoData:
 117             renderer = renderClass(*args)
 118             self.SetCellValue(row, renCol, label)
 119             self.SetCellValue(row, renCol+1, value)
 120             self.SetCellRenderer(row, renCol+1, renderer)
 121             row = row + 2
 122
 123
 124         row = 2
 125
 126         for label, value, editorClass, args in editorDemoData:
 127             editor = editorClass(*args)
 128             self.SetCellValue(row, edCol, label)
 129             self.SetCellValue(row, edCol+1, value)
 130             self.SetCellEditor(row, edCol+1, editor)
 131             row = row + 2
 132
 133
 134         row = 18
 135
 136         for label, value, renClass, edClass in comboDemoData:
 137             self.SetCellValue(row, renCol, label)
 138             self.SetCellValue(row, renCol+1, value)
 139             editor = edClass()
 140             renderer = renClass()
 141             self.SetCellEditor(row, renCol+1, editor)
 142             self.SetCellRenderer(row, renCol+1, renderer)
 143             row = row + 2
 144
 145         font = self.GetFont()
 146         font.SetWeight(wx.BOLD)
 147         attr = gridlib.GridCellAttr()
 148         attr.SetFont(font)
 149         attr.SetBackgroundColour(wx.LIGHT_GREY)
 150         attr.SetReadOnly(True)
 151         attr.SetAlignment(wx.RIGHT, -1)
 152         self.SetColAttr(renCol, attr)
 153         attr.IncRef()
 154         self.SetColAttr(edCol, attr)
 155
 156         # There is a bug in wxGTK for this method...
 157         self.AutoSizeColumns(True)
 158         self.AutoSizeRows(True)
 159
 160         self.Bind(gridlib.EVT_GRID_CELL_LEFT_DCLICK, self.OnLeftDClick)
 161
 162
 163     # I do this because I don't like the default behaviour of not starting the
 164     # cell editor on double clicks, but only a second click.
 165     def OnLeftDClick(self, evt):
 166         if self.CanEnableCellControl():
 167             self.EnableCellEditControl()
 168
 169
 170 #---------------------------------------------------------------------------
 171
 172 class TestFrame(wx.Frame):
 173     def __init__(self, parent, log):
 174         wx.Frame.__init__(self, parent, -1, "Editors and Renderers Demo", size=(640,480))
 175         grid = EditorsAndRenderersGrid(self, log)
 176
 177
 178
 179 #---------------------------------------------------------------------------
 180
 181 if __name__ == '__main__':
 182     import sys
 183     app = wx.PySimpleApp()
 184     frame = TestFrame(None, sys.stdout)
 185     frame.Show(True)
 186     app.MainLoop()
 187
 188
 189 #---------------------------------------------------------------------------