Source Code for Module pyjamas.ui.Grid

  1  # Copyright 2006 James Tauber and contributors 
  2  # Copyright (C) 2009 Luke Kenneth Casson Leighton <lkcl@lkcl.net> 
  3  # 
  4  # Licensed under the Apache License, Version 2.0 (the "License"); 
  5  # you may not use this file except in compliance with the License. 
  6  # You may obtain a copy of the License at 
  7  # 
  8  #     http://www.apache.org/licenses/LICENSE-2.0 
  9  # 
 10  # Unless required by applicable law or agreed to in writing, software 
 11  # distributed under the License is distributed on an "AS IS" BASIS, 
 12  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 13  # See the License for the specific language governing permissions and 
 14  # limitations under the License. 
 15  from pyjamas import DOM 
 16  from pyjamas import Factory 
 17   
 18  from pyjamas.ui.HTMLTable import HTMLTable 
 19  from pyjamas.ui.CellFormatter import CellFormatter 
 20  from pyjamas.ui.RowFormatter import RowFormatter 
 21   
 22 -class Grid(HTMLTable): 
 23   
 24 -    def __init__(self, rows=0, columns=0, **kwargs): 
 25          self.numColumns = 0 
 26          self.numRows = 0 
 27          HTMLTable.__init__(self, **kwargs) 
 28          if rows > 0 or columns > 0: 
 29              self.resize(rows, columns) 
 30   
 31 -    def removeRow(self, row): 
 32          HTMLTable.removeRow(self, row) 
 33          self.numRows -= 1 
 34   
 35 -    def resize(self, rows, columns): 
 36          self.resizeColumns(columns) 
 37          self.resizeRows(rows) 
 38   
 39 -    def resizeColumns(self, columns): 
 40          if self.numColumns == columns: 
 41              return 
 42   
 43          if self.numColumns > columns: 
 44              for i in range(0, self.numRows): 
 45                  for j in range(self.numColumns - 1, columns - 1, -1): 
 46                      self.removeCell(i, j) 
 47          else: 
 48              for i in range(self.numRows): 
 49                  for j in range(self.numColumns, columns): 
 50                      self.insertCell(i, j) 
 51          self.numColumns = columns 
 52   
 53 -    def resizeRows(self, rows): 
 54          if self.numRows == rows: 
 55              return 
 56   
 57          if self.numRows < rows: 
 58              self.addRows(self.getBodyElement(), rows - self.numRows, self.numColumns) 
 59              self.numRows = rows 
 60          else: 
 61              while self.numRows > rows: 
 62                  self.removeRow(self.numRows - 1) 
 63   
 64 -    def createCell(self): 
 65          td = HTMLTable.createCell(self) 
 66          DOM.setInnerHTML(td, "&nbsp;") 
 67          return td 
 68   
 69 -    def clearCell(self, row, column): 
 70          td = self.cellFormatter.getElement(row, column) 
 71          b = HTMLTable.internalClearCell(self, td) 
 72          DOM.setInnerHTML(td, "&nbsp;") 
 73          return b 
 74   
 75 -    def prepareCell(self, row, column): 
 76          pass 
 77   
 78 -    def prepareRow(self, row): 
 79          pass 
 80   
 81 -    def getCellCount(self, row): 
 82          return self.numColumns 
 83   
 84 -    def getColumnCount(self): 
 85          return self.numColumns 
 86   
 87 -    def getRowCount(self): 
 88          return self.numRows 
 89   
 90 -    def addRows(self, table, numRows, columns): 
 91          td = DOM.createElement("td") 
 92          DOM.setInnerHTML(td, "&nbsp;") 
 93          row = DOM.createElement("tr") 
 94          for cellNum in range(columns): 
 95              cell = td.cloneNode(True) 
 96              row.appendChild(cell) 
 97          for rowNum in range(numRows): 
 98              table.appendChild(row.cloneNode(True)) 
 99   
100  Factory.registerClass('pyjamas.ui.Grid', 'Grid', Grid) 
101