| 1 | # wxGrid workout |
| 2 | |
| 3 | import sys |
| 4 | |
| 5 | #---------------------------------------------------------------------------- |
| 6 | from wxPython.wx import * |
| 7 | from wxPython.grid import * |
| 8 | |
| 9 | class MyCellEditor(wxPyGridCellEditor): |
| 10 | """ |
| 11 | A custom GridCellEditor that only accepts numbers. |
| 12 | Also tries to work around wxGTK anomaly that key cannot start edit. |
| 13 | """ |
| 14 | |
| 15 | def Create(self, parent, id, evtHandler): |
| 16 | """ |
| 17 | Called to create the control, which must derive from wxControl. |
| 18 | *Must Override* |
| 19 | """ |
| 20 | print "Create" |
| 21 | theStyle = 0 |
| 22 | if wxPlatform == '__WXMSW__': |
| 23 | theStyle = wxTE_PROCESS_TAB | wxTE_MULTILINE | wxTE_NO_VSCROLL | wxTE_AUTO_SCROLL |
| 24 | #theStyle = wxTE_PROCESS_TAB | wxTE_PROCESS_ENTER |
| 25 | |
| 26 | self._tc = wxTextCtrl(parent, id, "", style=theStyle) |
| 27 | self._tc.SetInsertionPoint(0) |
| 28 | self.SetControl(self._tc) |
| 29 | if evtHandler: |
| 30 | print evtHandler |
| 31 | self._tc.PushEventHandler(evtHandler) |
| 32 | |
| 33 | |
| 34 | def SetSize(self, rect): |
| 35 | """ |
| 36 | Called to position/size the edit control within the cell rectangle. |
| 37 | If you don't fill the cell (the rect) then be sure to override |
| 38 | PaintBackground and do something meaningful there. |
| 39 | """ |
| 40 | self._tc.SetDimensions(rect.x-1, rect.y-1, rect.width+4, rect.height+4) |
| 41 | |
| 42 | def BeginEdit(self, row, col, grid): |
| 43 | """ |
| 44 | Fetch the value from the table and prepare the edit control |
| 45 | to begin editing. Set the focus to the edit control. |
| 46 | *Must Override* |
| 47 | """ |
| 48 | print "BeginEdit" |
| 49 | self.startValue = grid.GetTable().GetValue(row, col) |
| 50 | self._tc.SetValue(self.startValue) |
| 51 | self._tc.SetFocus() |
| 52 | |
| 53 | def EndEdit(self, row, col, grid): |
| 54 | """ |
| 55 | Complete the editing of the current cell. Returns true if the value |
| 56 | has changed. If necessary, the control may be destroyed. |
| 57 | *Must Override* |
| 58 | """ |
| 59 | changed = false |
| 60 | val = self._tc.GetValue() |
| 61 | if val != self.startValue: |
| 62 | changed = true |
| 63 | grid.GetTable().SetValue(row, col, val) # update the table |
| 64 | |
| 65 | self.startValue = '' |
| 66 | self._tc.SetValue('') |
| 67 | return changed |
| 68 | |
| 69 | |
| 70 | def Reset(self): |
| 71 | """ |
| 72 | Reset the value in the control back to its starting value. |
| 73 | *Must Override* |
| 74 | """ |
| 75 | self._tc.SetValue(self.startValue) |
| 76 | self._tc.SetInsertionPointEnd() |
| 77 | |
| 78 | |
| 79 | def IsAcceptedKey(self, evt): |
| 80 | """ |
| 81 | Return TRUE to allow the given key to start editing: the base class |
| 82 | version only checks that the event has no modifiers. |
| 83 | """ |
| 84 | key = evt.GetKeyCode() |
| 85 | print "KeyCode:", key |
| 86 | if (key in range(ord('0'),ord('9')+1) or |
| 87 | key in range(WXK_NUMPAD0, WXK_NUMPAD9+1)): |
| 88 | return true |
| 89 | else: |
| 90 | return false |
| 91 | |
| 92 | |
| 93 | def StartingKey(self, evt): |
| 94 | """ |
| 95 | If the editor is enabled by pressing keys on the grid, this will be |
| 96 | called to let the editor do something about that first key if desired. |
| 97 | """ |
| 98 | key = evt.GetKeyCode() |
| 99 | print "StartingKey", key |
| 100 | ch = None |
| 101 | if key in range(WXK_NUMPAD0, WXK_NUMPAD9+1): |
| 102 | ch = ch = chr(ord('0') + key - WXK_NUMPAD0) |
| 103 | |
| 104 | elif key < 256 and key >= 0 and chr(key) in string.printable: |
| 105 | ch = chr(key) |
| 106 | if not evt.ShiftDown(): |
| 107 | ch = ch.lower() |
| 108 | |
| 109 | if ch is not None: |
| 110 | # Replace the text. Other option would be to append it. |
| 111 | # self._tc.AppendText(ch) |
| 112 | self._tc.SetValue(ch) |
| 113 | self._tc.SetInsertionPointEnd() |
| 114 | else: |
| 115 | evt.Skip() |
| 116 | |
| 117 | |
| 118 | def Destroy(self): |
| 119 | """final cleanup""" |
| 120 | self.base_Destroy() |
| 121 | |
| 122 | |
| 123 | def Clone(self): |
| 124 | """ |
| 125 | Create a new object which is the copy of this one |
| 126 | *Must Override* |
| 127 | """ |
| 128 | print "clone" |
| 129 | return MyCellEditor() |
| 130 | |
| 131 | |
| 132 | class MyGrid(wxGrid): |
| 133 | def __init__(self, parent, cust): |
| 134 | wxGrid.__init__(self, parent, -1) |
| 135 | self.CreateGrid(10, 10) |
| 136 | for column in xrange(10): |
| 137 | self.SetColSize(column, 40) |
| 138 | |
| 139 | self.SetDefaultCellAlignment(wxCENTRE, wxCENTRE) |
| 140 | |
| 141 | import os |
| 142 | if cust: |
| 143 | for column in xrange(10): |
| 144 | # Note, we create attr and cell editor for each column |
| 145 | # otherwise segfault at exit, probably tries to free those |
| 146 | # multiple times from each column. |
| 147 | attr = wxGridCellAttr() |
| 148 | attr.SetEditor(MyCellEditor()) |
| 149 | self.SetColAttr(column, attr) |
| 150 | |
| 151 | |
| 152 | #---------------------------------------------------------------------------- |
| 153 | |
| 154 | class CardNoteBook(wxNotebook): |
| 155 | def __init__(self, parent, id): |
| 156 | wxNotebook.__init__(self, parent, id) |
| 157 | |
| 158 | for title, cust in [("Default", 0), ("Custom Cell Editor", 1)]: |
| 159 | win = MyGrid(self, cust) |
| 160 | self.AddPage(win, title) |
| 161 | |
| 162 | EVT_NOTEBOOK_PAGE_CHANGED(self, self.GetId(), self.OnPageChanged) |
| 163 | EVT_KEY_DOWN(self, self.OnKeyDown) |
| 164 | EVT_NAVIGATION_KEY(self, self.OnNavKey) |
| 165 | |
| 166 | |
| 167 | def OnKeyDown(self, evt): |
| 168 | print 'CardNoteBook.OnKeyDown: ', evt.GetKeyCode() |
| 169 | evt.Skip() |
| 170 | |
| 171 | |
| 172 | def OnNavKey(self, evt): |
| 173 | print 'CardNoteBook.OnNavKey:', evt |
| 174 | evt.Skip() |
| 175 | |
| 176 | def OnPageChanged(self, event): |
| 177 | event.Skip() |
| 178 | |
| 179 | |
| 180 | #---------------------------------------------------------------------------- |
| 181 | |
| 182 | class ScoreKeeper(wxFrame): |
| 183 | def __init__(self, parent, id, title): |
| 184 | wxFrame.__init__(self, parent, -1, title, size = (500, 400), |
| 185 | style=wxDEFAULT_FRAME_STYLE|wxNO_FULL_REPAINT_ON_RESIZE) |
| 186 | EVT_CLOSE(self, self.OnCloseWindow) |
| 187 | self.Centre(wxBOTH) |
| 188 | |
| 189 | self.nb = CardNoteBook(self, -1) |
| 190 | #win=MyGrid(self, "GTK") |
| 191 | self.Show(true) |
| 192 | |
| 193 | def OnCloseWindow(self, event): |
| 194 | self.dying = true |
| 195 | self.window = None |
| 196 | self.mainmenu = None |
| 197 | self.Destroy() |
| 198 | |
| 199 | def OnFileExit(self, event): |
| 200 | self.Close() |
| 201 | |
| 202 | #---------------------------------------------------------------------------- |
| 203 | |
| 204 | class MyApp(wxApp): |
| 205 | def OnInit(self): |
| 206 | frame = ScoreKeeper(None, -1, "ScoreKeeper: (A Demonstration)") |
| 207 | frame.Show(true) |
| 208 | self.SetTopWindow(frame) |
| 209 | return true |
| 210 | |
| 211 | |
| 212 | |
| 213 | #--------------------------------------------------------------------------- |
| 214 | |
| 215 | def main(): |
| 216 | app = MyApp(0) |
| 217 | app.MainLoop() |
| 218 | |
| 219 | main() |