import random import wx import wx.grid as gridlib #--------------------------------------------------------------------------- class MyCustomRenderer(gridlib.PyGridCellRenderer): def __init__(self): gridlib.PyGridCellRenderer.__init__(self) def Draw(self, grid, attr, dc, rect, row, col, isSelected): dc.SetBackgroundMode(wx.SOLID) dc.SetBrush(wx.Brush(wx.BLACK, wx.SOLID)) dc.SetPen(wx.TRANSPARENT_PEN) dc.DrawRectangleRect(rect) dc.SetBackgroundMode(wx.TRANSPARENT) dc.SetFont(attr.GetFont()) text = grid.GetCellValue(row, col) colors = ["RED", "WHITE", "SKY BLUE"] x = rect.x + 1 y = rect.y + 1 for ch in text: dc.SetTextForeground(random.choice(colors)) dc.DrawText(ch, x, y) w, h = dc.GetTextExtent(ch) x = x + w if x > rect.right - 5: break def GetBestSize(self, grid, attr, dc, row, col): text = grid.GetCellValue(row, col) dc.SetFont(attr.GetFont()) w, h = dc.GetTextExtent(text) return wx.Size(w, h) def Clone(self): return MyCustomRenderer() #--------------------------------------------------------------------------- rendererDemoData = [ ('GridCellStringRenderer\n(the default)', 'this is a text value', gridlib.GridCellStringRenderer, ()), ('GridCellNumberRenderer', '12345', gridlib.GridCellNumberRenderer, ()), ('GridCellFloatRenderer', '1234.5678', gridlib.GridCellFloatRenderer, (6,2)), ('GridCellBoolRenderer', '1', gridlib.GridCellBoolRenderer, ()), ('MyCustomRenderer', 'This is my renderer', MyCustomRenderer, ()), ] editorDemoData = [ ('GridCellTextEditor\n(the default)', 'Here is some more text', gridlib.GridCellTextEditor, ()), ('GridCellNumberEditor\nwith min,max', '101', gridlib.GridCellNumberEditor, (5, 10005)), ('GridCellNumberEditor\nwithout bounds', '101', gridlib.GridCellNumberEditor, ()), ('GridCellFloatEditor', '1234.5678', gridlib.GridCellFloatEditor, ()), ('GridCellBoolEditor', '1', gridlib.GridCellBoolEditor, ()), ('GridCellChoiceEditor', 'one', gridlib.GridCellChoiceEditor, (['one', 'two', 'three', 'four', 'kick', 'Microsoft', 'out the', 'door'], False)), ] comboDemoData = [ ('GridCellNumberRenderer\nGridCellNumberEditor', '20792', gridlib.GridCellNumberRenderer, gridlib.GridCellNumberEditor), ('GridCellBoolRenderer\nGridCellBoolEditor', '1', gridlib.GridCellBoolRenderer, gridlib.GridCellBoolEditor), ] class EditorsAndRenderersGrid(gridlib.Grid): def __init__(self, parent, log): gridlib.Grid.__init__(self, parent, -1) self.log = log self.CreateGrid(25, 8) renCol = 1 edCol = 4 self.SetCellValue(0, renCol, '''\ Cell Renderers are used to draw the contents of the cell when they need to be refreshed. Different types of Renderers can be plugged in to different cells in the grid, it can even be automatically determined based on the type of data in the cell. ''') self.SetCellValue(0, edCol, '''\ Cell Editors are used when the value of the cell is edited by the user. An editor class is wrapped around a an object derived from wxControl and it implements some methods required to integrate with the grid. ''') self.SetCellValue(16, renCol, '''\ Here are some combinations of Editors and Renderers used together. ''') row = 2 for label, value, renderClass, args in rendererDemoData: renderer = renderClass(*args) self.SetCellValue(row, renCol, label) self.SetCellValue(row, renCol+1, value) self.SetCellRenderer(row, renCol+1, renderer) row = row + 2 row = 2 for label, value, editorClass, args in editorDemoData: editor = editorClass(*args) self.SetCellValue(row, edCol, label) self.SetCellValue(row, edCol+1, value) self.SetCellEditor(row, edCol+1, editor) row = row + 2 row = 18 for label, value, renClass, edClass in comboDemoData: self.SetCellValue(row, renCol, label) self.SetCellValue(row, renCol+1, value) editor = edClass() renderer = renClass() self.SetCellEditor(row, renCol+1, editor) self.SetCellRenderer(row, renCol+1, renderer) row = row + 2 font = self.GetFont() font.SetWeight(wx.BOLD) attr = gridlib.GridCellAttr() attr.SetFont(font) attr.SetBackgroundColour(wx.LIGHT_GREY) attr.SetReadOnly(True) attr.SetAlignment(wx.RIGHT, -1) self.SetColAttr(renCol, attr) attr.IncRef() self.SetColAttr(edCol, attr) # There is a bug in wxGTK for this method... self.AutoSizeColumns(True) self.AutoSizeRows(True) self.Bind(gridlib.EVT_GRID_CELL_LEFT_DCLICK, self.OnLeftDClick) # I do this because I don't like the default behaviour of not starting the # cell editor on double clicks, but only a second click. def OnLeftDClick(self, evt): if self.CanEnableCellControl(): self.EnableCellEditControl() #--------------------------------------------------------------------------- class TestFrame(wx.Frame): def __init__(self, parent, log): wx.Frame.__init__(self, parent, -1, "Editors and Renderers Demo", size=(640,480)) grid = EditorsAndRenderersGrid(self, log) #--------------------------------------------------------------------------- if __name__ == '__main__': import sys app = wx.PySimpleApp() frame = TestFrame(None, sys.stdout) frame.Show(True) app.MainLoop() #---------------------------------------------------------------------------