- def OnChar(self, evt): # Hook OnChar for custom behavior
- """Customizes char events """
- key = evt.GetKeyCode()
- if key == WXK_DOWN:
- self._grid.DisableCellEditControl() # Commit the edit
- self._grid.MoveCursorDown(False) # Change the current cell
- elif key == WXK_UP:
- self._grid.DisableCellEditControl() # Commit the edit
- self._grid.MoveCursorUp(False) # Change the current cell
- elif key == WXK_LEFT:
- self._grid.DisableCellEditControl() # Commit the edit
- self._grid.MoveCursorLeft(False) # Change the current cell
- elif key == WXK_RIGHT:
- self._grid.DisableCellEditControl() # Commit the edit
- self._grid.MoveCursorRight(False) # Change the current cell
-
- evt.Skip() # Continue event
-
-#---------------------------------------------------------------------------
-class CCellEditor(wxPyGridCellEditor):
- """ Custom cell editor """
- def __init__(self, grid):
- wxPyGridCellEditor.__init__(self)
- self._grid = grid # Save a reference to the grid
-
- def Create(self, parent, id, evtHandler):
- """ Create the actual edit control. Must derive from wxControl.
- Must Override
- """
- self._tc = CTextCellEditor(parent, id, self._grid)
- self._tc.SetInsertionPoint(0)
- self.SetControl(self._tc)
- if evtHandler:
- self._tc.PushEventHandler(evtHandler)
-
- def SetSize(self, rect):
- """ Position/size the edit control within the cell rectangle. """
- # Size text control to exactly overlay in-cell editing
- self._tc.SetDimensions(rect.x+3, rect.y+3, rect.width-2, rect.height-2)
-
- def Show(self, show, attr):
- """ Show or hide the edit control. Use the attr (if not None)
- to set colors or fonts for the control.
- """
- self.base_Show(show, attr)
-
- def PaintBackground(self, rect, attr):
- """ Draws the part of the cell not occupied by the edit control. The
- base class version just fills it with background colour from the
- attribute.
- """
- # Call base class method.
- self.base_PaintBackground(self, rect, attr)
-
- def BeginEdit(self, row, col, grid):
- """ Fetch the value from the table and prepare edit control to begin editing.
- Set the focus to the edit control. Must Override.
- """
- self._startValue = grid.GetTable().GetValue(row, col)
- self._tc.SetValue(self._startValue)
- self._tc.SetFocus()
-
- # Select the text when initiating an edit so that subsequent typing
- # replaces the contents.
- self._tc.SetSelection(0, self._tc.GetLastPosition())
-
- def EndEdit(self, row, col, grid):
- """ Commit editing the current cell. Returns True if the value has changed.
- If necessary, the control may be destroyed. Must Override.
- """
- changed = False # Assume value not changed
- val = self._tc.GetValue() # Get value in edit control
- if val != self._startValue: # Compare
- changed = True # If different then changed is True
- grid.GetTable().SetValue(row, col, val) # Update the table
- self._startValue = '' # Clear the class' start value
- self._tc.SetValue('') # Clear contents of the edit control
-
- return changed
-
- def Reset(self):
- """ Reset the value in the control back to its starting value. Must Override. """
- self._tc.SetValue(self._startValue)
- self._tc.SetInsertionPointEnd()
-
- def IsAcceptedKey(self, evt):
- """ Return True to allow the given key to start editing. The base class
- version only checks that the event has no modifiers. F2 is special
- and will always start the editor.
- """
- return (not (evt.ControlDown() or evt.AltDown())
- and evt.GetKeyCode() != WXK_SHIFT)
-
- def StartingKey(self, evt):
- """ If the editor is enabled by pressing keys on the grid, this will be
- called to let the editor react to that first key.
- """
- key = evt.GetKeyCode() # Get the key code
- ch = None # Handle num pad keys
- if key in [WXK_NUMPAD0, WXK_NUMPAD1, WXK_NUMPAD2, WXK_NUMPAD3, WXK_NUMPAD4,
- WXK_NUMPAD5, WXK_NUMPAD6, WXK_NUMPAD7, WXK_NUMPAD8, WXK_NUMPAD9]:
- ch = chr(ord('0') + key - WXK_NUMPAD0)
-
- elif key == WXK_BACK: # Empty text control when init w/ back key
- ch = ""
- # Handle normal keys
- elif key < 256 and key >= 0 and chr(key) in string.printable:
- ch = chr(key)
- if not evt.ShiftDown():
- ch = ch.lower()
-
- if ch is not None: # If are at this point with a key,
- self._tc.SetValue(ch) # replace the contents of the text control.
- self._tc.SetInsertionPointEnd() # Move to the end so that subsequent keys are appended
- else:
- evt.Skip()
-
- def StartingClick(self):
- """ If the editor is enabled by clicking on the cell, this method will be
- called to allow the editor to simulate the click on the control.
- """
- pass
-
- def Destroy(self):
- """ Final cleanup """
- self.base_Destroy()
-
- def Clone(self):
- """ Create a new object which is the copy of this one. Must Override. """
- return CCellEditor()
-
-#---------------------------------------------------------------------------
-class CSheet(wxGrid):
- def __init__(self, parent):
- wxGrid.__init__(self, parent, -1)
-
- # Init variables
- self._lastCol = -1 # Init last cell column clicked
- self._lastRow = -1 # Init last cell row clicked
- self._selected = None # Init range currently selected
- # Map string datatype to default renderer/editor
- self.RegisterDataType(wxGRID_VALUE_STRING,
- wxGridCellStringRenderer(),
- CCellEditor(self))
-
- self.CreateGrid(4, 3) # By default start with a 4 x 3 grid
- self.SetColLabelSize(18) # Default sizes and alignment
- self.SetRowLabelSize(50)
- self.SetRowLabelAlignment(wxALIGN_RIGHT, wxALIGN_BOTTOM)
- self.SetColSize(0, 75) # Default column sizes
- self.SetColSize(1, 75)
- self.SetColSize(2, 75)
-
- # Sink events
- EVT_GRID_CELL_LEFT_CLICK( self, self.OnLeftClick)
- EVT_GRID_CELL_RIGHT_CLICK( self, self.OnRightClick)
- EVT_GRID_CELL_LEFT_DCLICK( self, self.OnLeftDoubleClick)
- EVT_GRID_RANGE_SELECT( self, self.OnRangeSelect)
- EVT_GRID_ROW_SIZE( self, self.OnRowSize)
- EVT_GRID_COL_SIZE( self, self.OnColSize)
- EVT_GRID_CELL_CHANGE( self, self.OnCellChange)
- EVT_GRID_SELECT_CELL( self, self.OnGridSelectCell)
-
- def OnGridSelectCell(self, event):
- """ Track cell selections """
- # Save the last cell coordinates
- self._lastRow, self._lastCol = event.GetRow(), event.GetCol()
- event.Skip()
-
- def OnRowSize(self, event):
- event.Skip()
-
- def OnColSize(self, event):
- event.Skip()
-
- def OnCellChange(self, event):
- event.Skip()
-
- def OnLeftClick(self, event):
- """ Override left-click behavior to prevent left-click edit initiation """
- # Save the cell clicked
- currCell = (event.GetRow(), event.GetCol())
-
- # Suppress event if same cell clicked twice in a row.
- # This prevents a single-click from initiating an edit.
- if currCell != (self._lastRow, self._lastCol): event.Skip()
-
- def OnRightClick(self, event):
- """ Move grid cursor when a cell is right-clicked """
- self.SetGridCursor( event.GetRow(), event.GetCol() )
- event.Skip()
-
- def OnLeftDoubleClick(self, event):
- """ Initiate the cell editor on a double-click """
- # Move grid cursor to double-clicked cell
- if self.CanEnableCellControl():
- self.SetGridCursor( event.GetRow(), event.GetCol() )
- self.EnableCellEditControl(True) # Show the cell editor
- event.Skip()
-
- def OnRangeSelect(self, event):
- """ Track which cells are selected so that copy/paste behavior can be implemented """
- # If a single cell is selected, then Selecting() returns False (0)
- # and range coords are entire grid. In this case cancel previous selection.
- # If more than one cell is selected, then Selecting() is True (1)
- # and range accurately reflects selected cells. Save them.
- # If more cells are added to a selection, selecting remains True (1)
- self._selected = None
- if event.Selecting():
- self._selected = ((event.GetTopRow(), event.GetLeftCol()),
- (event.GetBottomRow(), event.GetRightCol()))
- event.Skip()
-
- def Copy(self):
- """ Copy the currently selected cells to the clipboard """
- # TODO: raise an error when there are no cells selected?
- if self._selected == None: return
- ((r1, c1), (r2, c2)) = self._selected
-
- # Build a string to put on the clipboard
- # (Is there a faster way to do this in Python?)
- crlf = chr(13) + chr(10)
- tab = chr(9)
- s = ""
- for row in range(r1, r2+1):
- for col in range(c1, c2):
- s += self.GetCellValue(row,col)
- s += tab
- s += self.GetCellValue(row, c2)
- s += crlf
-
- # Put the string on the clipboard
- if wxTheClipboard.Open():
- wxTheClipboard.Clear()
- wxTheClipboard.SetData(wxTextDataObject(s))
- wxTheClipboard.Close()
-
- def Paste(self):
- """ Paste the contents of the clipboard into the currently selected cells """
- # (Is there a better way to do this?)
- if wxTheClipboard.Open():
- td = wxTextDataObject()
- success = wxTheClipboard.GetData(td)
- wxTheClipboard.Close()
- if not success: return # Exit on failure
- s = td.GetText() # Get the text
-
- crlf = chr(13) + chr(10) # CrLf characters
- tab = chr(9) # Tab character
-
- rows = s.split(crlf) # split into rows
- rows = rows[0:-1] # leave out last element, which is always empty
- for i in range(0, len(rows)): # split rows into elements
- rows[i] = rows[i].split(tab)
-
- # Get the starting and ending cell range to paste into
- if self._selected == None: # If no cells selected...
- r1 = self.GetGridCursorRow() # Start the paste at the current location
- c1 = self.GetGridCursorCol()
- r2 = self.GetNumberRows()-1 # Go to maximum row and col extents
- c2 = self.GetNumberCols()-1
- else: # If cells selected, only paste there
- ((r1, c1), (r2, c2)) = self._selected
-
- # Enter data into spreadsheet cells one at a time
- r = r1 # Init row and column counters
- c = c1
- for row in rows: # Loop over all rows
- for element in row: # Loop over all row elements
- self.SetCellValue(r, c, str(element)) # Set cell value
- c += 1 # Increment the column counter
- if c > c2: break # Do not exceed maximum column
- r += 1
- if r > r2: break # Do not exceed maximum row
- c = c1
-
- def Clear(self):
- """ Clear the currently selected cells """
- if self._selected == None: # If no selection...
- r = self.GetGridCursorRow() # clear only current cell
- c = self.GetGridCursorCol()
- self.SetCellValue(r, c, "")
- else: # Otherwise clear selected cells
- ((r1, c1), (r2, c2)) = self._selected
- for r in range(r1, r2+1):
- for c in range(c1, c2+1):
- self.SetCellValue(r, c, "")
-
- def SetNumberRows(self, numRows=1):
- """ Set the number of rows in the sheet """
- # Check for non-negative number
- if numRows < 0: return False
-
- # Adjust number of rows
- curRows = self.GetNumberRows()
- if curRows < numRows:
- self.AppendRows(numRows - curRows)
- elif curRows > numRows:
- self.DeleteRows(numRows, curRows - numRows)
-
- return True
-
- def SetNumberCols(self, numCols=1):
- """ Set the number of columns in the sheet """
- # Check for non-negative number
- if numCols < 0: return False
-
- # Adjust number of rows
- curCols = self.GetNumberCols()
- if curCols < numCols:
- self.AppendCols(numCols - curCols)
- elif curCols > numCols:
- self.DeleteCols(numCols, curCols - numCols)
-
- return True
projects / wxWidgets.git / blobdiff