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'''
Task Coach - Your friendly task manager
Copyright (C) 2004-2014 Task Coach developers <developers@taskcoach.org>
Task Coach is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Task Coach is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
from taskcoachlib import operating_system
from taskcoachlib.widgets import itemctrl
import wx.lib.mixins.listctrl
class VirtualListCtrl(itemctrl.CtrlWithItemsMixin, itemctrl.CtrlWithColumnsMixin,
itemctrl.CtrlWithToolTipMixin, wx.ListCtrl):
def __init__(self, parent, columns, selectCommand=None, editCommand=None,
itemPopupMenu=None, columnPopupMenu=None, resizeableColumn=0,
*args, **kwargs):
super(VirtualListCtrl, self).__init__(parent,
style=wx.LC_REPORT | wx.LC_VIRTUAL, columns=columns,
resizeableColumn=resizeableColumn, itemPopupMenu=itemPopupMenu,
columnPopupMenu=columnPopupMenu, *args, **kwargs)
self.__parent = parent
self.bindEventHandlers(selectCommand, editCommand)
def bindEventHandlers(self, selectCommand, editCommand):
# pylint: disable=W0201
if selectCommand:
self.selectCommand = selectCommand
self.Bind(wx.EVT_LIST_ITEM_FOCUSED, self.onSelect)
self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.onSelect)
self.Bind(wx.EVT_LIST_ITEM_DESELECTED, self.onSelect)
if editCommand:
self.editCommand = editCommand
self.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.onItemActivated)
self.Bind(wx.EVT_SET_FOCUS, self.onSetFocus)
def onSetFocus(self, event): # pylint: disable=W0613
# Send a child focus event to let the AuiManager know we received focus
# so it will activate our pane
wx.PostEvent(self, wx.ChildFocusEvent(self))
event.Skip()
def getItemWithIndex(self, rowIndex):
return self.__parent.getItemWithIndex(rowIndex)
def getItemText(self, domainObject, columnIndex):
return self.__parent.getItemText(domainObject, columnIndex)
def getItemTooltipData(self, domainObject):
return self.__parent.getItemTooltipData(domainObject)
def getItemImage(self, domainObject, columnIndex=0):
return self.__parent.getItemImages(domainObject,
columnIndex)[wx.TreeItemIcon_Normal]
def OnGetItemText(self, rowIndex, columnIndex):
item = self.getItemWithIndex(rowIndex)
return self.getItemText(item, columnIndex)
def OnGetItemTooltipData(self, rowIndex, columnIndex):
item = self.getItemWithIndex(rowIndex)
return self.getItemTooltipData(item)
def OnGetItemImage(self, rowIndex):
item = self.getItemWithIndex(rowIndex)
return self.getItemImage(item)
def OnGetItemColumnImage(self, rowIndex, columnIndex):
item = self.getItemWithIndex(rowIndex)
return self.getItemImage(item, columnIndex)
def OnGetItemAttr(self, rowIndex):
item = self.getItemWithIndex(rowIndex)
foreground_color = item.foregroundColor(recursive=True)
background_color = item.backgroundColor(recursive=True)
item_attribute_arguments = [foreground_color, background_color]
font = item.font(recursive=True)
if font:
item_attribute_arguments.append(font)
# We need to keep a reference to the item attribute to prevent it
# from being garbage collected too soon:
self.__item_attribute = wx.ListItemAttr(*item_attribute_arguments) # pylint: disable=W0142,W0201
return self.__item_attribute
def onSelect(self, event):
event.Skip()
self.selectCommand(event)
def onItemActivated(self, event):
''' Override default behavior to attach the column clicked on
to the event so we can use it elsewhere. '''
window = self.GetMainWindow()
if operating_system.isMac():
window = window.GetChildren()[0]
mouse_position = window.ScreenToClient(wx.GetMousePosition())
index, dummy_flags, column = self.HitTest(mouse_position)
if index >= 0:
# Only get the column name if the hittest returned an item,
# otherwise the item was activated from the menu or by double
# clicking on a portion of the tree view not containing an item.
column = max(0, column) # FIXME: Why can the column be -1?
event.columnName = self._getColumn(column).name() # pylint: disable=E1101
self.editCommand(event)
def RefreshAllItems(self, count):
self.SetItemCount(count)
if count == 0:
self.DeleteAllItems()
else:
# The VirtualListCtrl makes sure only visible items are updated
super(VirtualListCtrl, self).RefreshItems(0, count - 1)
self.selectCommand()
def RefreshItems(self, *items):
''' Refresh specific items. '''
if len(items) <= 7:
for item in items:
self.RefreshItem(self.__parent.getIndexOfItem(item))
else:
self.RefreshAllItems(self.GetItemCount())
def HitTest(self, (x, y), *args, **kwargs):
''' Always return a three-tuple (item, flag, column). '''
index, flags = super(VirtualListCtrl, self).HitTest((x, y),
*args, **kwargs)
column = 0
if self.InReportView():
# Determine the column in which the user clicked
cumulative_column_width = 0
for column_index in range(self.GetColumnCount()):
cumulative_column_width += self.GetColumnWidth(column_index)
if x <= cumulative_column_width:
column = column_index
break
return index, flags, column
def curselection(self):
return [self.getItemWithIndex(index) \
for index in self.__curselection_indices()]
def select(self, items):
indices = [self.__parent.getIndexOfItem(item) for item in items]
for index in range(self.GetItemCount()):
self.Select(index, index in indices)
if self.curselection():
self.Focus(self.GetFirstSelected())
def clear_selection(self):
''' Unselect all selected items. '''
for index in self.__curselection_indices():
self.Select(index, False)
def select_all(self):
''' Select all items. '''
for index in range(self.GetItemCount()):
self.Select(index)
def __curselection_indices(self):
''' Return the indices of the currently selected items. '''
return wx.lib.mixins.listctrl.getListCtrlSelection(self)
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