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| | # -*- coding: utf-8 -*-
import uno, unohelper
from com.sun.star.awt.grid import XGridDataModel, GridDataEvent
class GridDataModelBase(unohelper.Base, XGridDataModel, object):
""" base class for custom data model for grid control."""
RowAdded = 0x1
RowRemoved = 0x10
DataChanged = 0x100
def __init__(self, ctx):
""" corereflection is used to call method of the listeners."""
self.ctx = ctx
self.listeners = []
self._reflection = self.ctx.getServiceManager().createInstanceWithContext(
'com.sun.star.reflection.CoreReflection', self.ctx)
def _broadcast_added(self, index, header, data):
""" broadcast about addition. """
ev = GridDataEvent(self, '', None, None, index, header, data)
self._broadcast(self.RowAdded, ev)
def _broadcast_removed(self, index):
""" broadcast removement. """
ev = GridDataEvent()
ev.index = index
self._broadcast(self.RowRemoved, ev)
def _broadcast_changed(self, name, index, old_value, new_value):
""" broadcast some changes. """
if name == 'RowUpdated':
old_value = uno.Any('[]long', old_value)
ev = GridDataEvent(self, name, old_value, new_value, index, '', ())
self._broadcast(self.DataChanged, ev)
def _broadcast(self, update_type, ev):
""" broadcasting """
method_name = ''
if update_type == self.RowAdded:
method_name = 'rowAdded'
elif update_type == self.RowRemoved:
method_name = 'rowRemoved'
elif update_type == self.DataChanged:
method_name = 'dataChanged'
else:
return
for listener in self.listeners:
idl_method = self._reflection.getType(listener).getMethod(method_name)
if idl_method:
try:
idl_method.invoke(listener, (ev,))
except Exception as e:
print(e)
def removeDataListener(self, listener):
for k, v in enumerate(self.listeners):
if listener == v:
del self.listener[k]
def addDataListener(self, listener):
self.listeners.append(listener)
class CustomGridDataModel(GridDataModelBase):
""" Customizable data mode. """
def __init__(self, ctx):
GridDataModelBase.__init__(self, ctx)
self.RowHeight = 10
self.RowHeaderWidth = 20
self._headers = []
self._rows = []
@property
def Data(self):
""" ondemand created data. """
return tuple([tuple(row) for row in self._rows])
@property
def RowHeaders(self):
""" headers """
return tuple(self._headers)
@RowHeaders.setter
def RowHeaders(self, value):
pass
# XGridDataModel
def getRowCount(self):
""" number of rows. """
return len(self._rows)
def addRow(self, header, row):
""" new row. """
if isinstance(header, basestring) and isinstance(row, tuple):
self._headers.append(header)
self._rows.append(row)
self._broadcast_added(len(self._rows) - 1, header, row)
def removeRow(self, index):
""" remove specified row."""
if 0 <= index < len(self._rows):
del self._headers[index]
del self._rows[index]
self._broadcast_removed(index)
def removeAll(self):
""" all rows are removed. """
self._headers = []
self._rows = []
self._broadcast_removed(-1)
def updateCell(self, index, column_index, value):
""" specific individual cell is updated."""
if 0 <= index < len(self._rows):
row = list(self._rows[index])
if 0 <= column_index < len(row):
row[column_index] = value
self._rows[index] = row
self._broadcast_changed('CellUpdated', index, column_index, value)
def updateRow(self, index, columns, values):
""" a few cells are update in the same row. """
if isinstance(columns, tuple) and isinstance(values, tuple) and \
len(columns) == len(values):
if 0 <= index < len(self._rows):
row = list(self._rows[index])
for i, v in zip(columns, values):
row[i] = v
self._rows[index] = tuple(row)
self._broadcast_changed('RowUpdated', index, columns, values)
def grid_custom_data_model_test(*args):
""" test case for custom grid data model."""
ctx = XSCRIPTCONTEXT.getComponentContext()
smgr = ctx.getServiceManager()
dp = smgr.createInstanceWithContext(
'com.sun.star.awt.DialogProvider', ctx)
dlg = dp.createDialog('vnd.sun.star.script:Standard.Dialog1?location=application')
dlg_model = dlg.getModel()
grid_model = dlg_model.createInstance(
'com.sun.star.awt.grid.UnoControlGridModel')
grid_model.setPropertyValues(
('Height', 'PositionX', 'PositionY', 'Width'),
(100, 3, 3, 100))
grid_model.ShowColumnHeader = True
# add columns
oGridCol1 = smgr.createInstanceWithContext(
"com.sun.star.awt.grid.GridColumn", ctx)
oGridCol1.Title = "Col 1"
oGridCol2 = smgr.createInstanceWithContext(
"com.sun.star.awt.grid.GridColumn", ctx)
oGridCol2.Title = "Col 2"
oColModel = smgr.createInstanceWithContext(
"com.sun.star.awt.grid.DefaultGridColumnModel", ctx)
oColModel.addColumn(oGridCol1)
oColModel.addColumn(oGridCol2)
grid_model.ColumnModel = oColModel
# create grid data model
use_default = False
if use_default:
# with default grid data model
dataModel = smgr.createInstanceWithContext(
"com.sun.star.awt.grid.DefaultGridDataModel", ctx)
else:
# using custom one
#print("CustomGridDataModel is used.")
dataModel = CustomGridDataModel(ctx)
grid_model.GridDataModel = dataModel
dataModel.addRow("1", ("getByName", "1_2"))
dataModel.addRow("2", ("2_1", "2_2"))
dlg_model.insertByName('Grid1', grid_model)
# if broadcasting about row addition is correctly sended, 3rd row is shown
dataModel.addRow("3", ("...", "1_2"))
#dataModel.updateCell(0, 0, 'get?')
dataModel.updateRow(1, (0, ), ("updated>", ))
dlg.execute()
|