wxPython/demo/GridStdEdRend.py

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