X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d14a1e28567de23c586bc80017073d0c39f8d18f..25b3661bd4cb44304418b93c0dee1d0dfb99765c:/wxPython/wx/lib/mixins/listctrl.py diff --git a/wxPython/wx/lib/mixins/listctrl.py b/wxPython/wx/lib/mixins/listctrl.py index a2fe1e514b..2de4d3bbca 100644 --- a/wxPython/wx/lib/mixins/listctrl.py +++ b/wxPython/wx/lib/mixins/listctrl.py @@ -9,22 +9,40 @@ # Copyright: (c) 2001 by Total Control Software # Licence: wxWindows license #---------------------------------------------------------------------------- +# 12/14/2003 - Jeff Grimmett (grimmtooth@softhome.net) +# +# o 2.5 compatability update. +# o ListCtrlSelectionManagerMix untested. +# +# 12/21/2003 - Jeff Grimmett (grimmtooth@softhome.net) +# +# o wxColumnSorterMixin -> ColumnSorterMixin +# o wxListCtrlAutoWidthMixin -> ListCtrlAutoWidthMixin +# ... +# 13/10/2004 - Pim Van Heuven (pim@think-wize.com) +# o wxTextEditMixin: Support Horizontal scrolling when TAB is pressed on long +# ListCtrls, support for WXK_DOWN, WXK_UP, performance improvements on +# very long ListCtrls, Support for virtual ListCtrls +# +# 15-Oct-2004 - Robin Dunn +# o wxTextEditMixin: Added Shift-TAB support +# -from wxPython.wx import * -import locale +import locale +import wx #---------------------------------------------------------------------------- -class wxColumnSorterMixin: +class ColumnSorterMixin: """ - A mixin class that handles sorting of a wxListCtrl in REPORT mode when + A mixin class that handles sorting of a wx.ListCtrl in REPORT mode when the column header is clicked on. There are a few requirments needed in order for this to work genericly: 1. The combined class must have a GetListCtrl method that - returns the wxListCtrl to be sorted, and the list control - must exist at the time the wxColumnSorterMixin.__init__ + returns the wx.ListCtrl to be sorted, and the list control + must exist at the time the wx.ColumnSorterMixin.__init__ method is called because it uses GetListCtrl. 2. Items in the list control must have a unique data value set @@ -43,8 +61,8 @@ class wxColumnSorterMixin: self.SetColumnCount(numColumns) list = self.GetListCtrl() if not list: - raise ValueError, "No wxListCtrl available" - EVT_LIST_COL_CLICK(list, list.GetId(), self.__OnColClick) + raise ValueError, "No wx.ListCtrl available" + list.Bind(wx.EVT_LIST_COL_CLICK, self.__OnColClick, list) def SetColumnCount(self, newNumColumns): @@ -139,30 +157,43 @@ class wxColumnSorterMixin: #---------------------------------------------------------------------------- #---------------------------------------------------------------------------- -class wxListCtrlAutoWidthMixin: +class ListCtrlAutoWidthMixin: """ A mix-in class that automatically resizes the last column to take up - the remaining width of the wxListCtrl. + the remaining width of the wx.ListCtrl. - This causes the wxListCtrl to automatically take up the full width of + This causes the wx.ListCtrl to automatically take up the full width of the list, without either a horizontal scroll bar (unless absolutely necessary) or empty space to the right of the last column. NOTE: This only works for report-style lists. - WARNING: If you override the EVT_SIZE event in your wxListCtrl, make + WARNING: If you override the EVT_SIZE event in your wx.ListCtrl, make sure you call event.Skip() to ensure that the mixin's _OnResize method is called. This mix-in class was written by Erik Westra -""" + """ def __init__(self): """ Standard initialiser. """ - self._lastColMinWidth = None + self._resizeColMinWidth = None + self._resizeColStyle = "LAST" + self._resizeCol = 0 + self.Bind(wx.EVT_SIZE, self._onResize) + self.Bind(wx.EVT_LIST_COL_END_DRAG, self._onResize, self) - EVT_SIZE(self, self._onResize) - EVT_LIST_COL_END_DRAG(self, self.GetId(), self._onResize) + def setResizeColumn(self, col): + """ + Specify which column that should be autosized. Pass either + 'LAST' or the column number. Default is 'LAST'. + """ + if col == "LAST": + self._resizeColStyle = "LAST" + else: + self._resizeColStyle = "COL" + self._resizeCol = col + def resizeLastColumn(self, minWidth): """ Resize the last column appropriately. @@ -171,26 +202,34 @@ class wxListCtrlAutoWidthMixin: a horizontal scrollbar. Otherwise, we expand the right-most column to take up the remaining free space in the list. - This method is called automatically when the wxListCtrl is resized; + This method is called automatically when the wx.ListCtrl is resized; you can also call it yourself whenever you want the last column to be resized appropriately (eg, when adding, removing or resizing columns). 'minWidth' is the preferred minimum width for the last column. """ - self._lastColMinWidth = minWidth + self.resizeColumn(minWidth) + + + def resizeColumn(self, minWidth): + self._resizeColMinWidth = minWidth self._doResize() + # ===================== # == Private Methods == # ===================== def _onResize(self, event): - """ Respond to the wxListCtrl being resized. + """ Respond to the wx.ListCtrl being resized. We automatically resize the last column in the list. """ - wxCallAfter(self._doResize) + if 'gtk2' in wx.PlatformInfo: + self._doResize() + else: + wx.CallAfter(self._doResize) event.Skip() @@ -206,97 +245,117 @@ class wxListCtrlAutoWidthMixin: or calculated a minimum width. This ensure that repeated calls to _doResize() don't cause the last column to size itself too large. """ + + if not self: # avoid a PyDeadObject error + return + numCols = self.GetColumnCount() if numCols == 0: return # Nothing to resize. - if self._lastColMinWidth == None: - self._lastColMinWidth = self.GetColumnWidth(numCols - 1) + if(self._resizeColStyle == "LAST"): + resizeCol = self.GetColumnCount() + else: + resizeCol = self._resizeCol + + if self._resizeColMinWidth == None: + self._resizeColMinWidth = self.GetColumnWidth(resizeCol - 1) # We're showing the vertical scrollbar -> allow for scrollbar width # NOTE: on GTK, the scrollbar is included in the client size, but on # Windows it is not included listWidth = self.GetClientSize().width - if wxPlatform != '__WXMSW__': + if wx.Platform != '__WXMSW__': if self.GetItemCount() > self.GetCountPerPage(): - scrollWidth = wxSystemSettings_GetMetric(wxSYS_VSCROLL_X) + scrollWidth = wx.SystemSettings_GetMetric(wx.SYS_VSCROLL_X) listWidth = listWidth - scrollWidth totColWidth = 0 # Width of all columns except last one. - for col in range(numCols-1): - totColWidth = totColWidth + self.GetColumnWidth(col) + for col in range(numCols): + if col != (resizeCol-1): + totColWidth = totColWidth + self.GetColumnWidth(col) - lastColWidth = self.GetColumnWidth(numCols - 1) + resizeColWidth = self.GetColumnWidth(resizeCol - 1) - if totColWidth + self._lastColMinWidth > listWidth: + if totColWidth + self._resizeColMinWidth > listWidth: # We haven't got the width to show the last column at its minimum # width -> set it to its minimum width and allow the horizontal # scrollbar to show. - self.SetColumnWidth(numCols-1, self._lastColMinWidth) + self.SetColumnWidth(resizeCol-1, self._resizeColMinWidth) return # Resize the last column to take up the remaining available space. - self.SetColumnWidth(numCols-1, listWidth - totColWidth) + self.SetColumnWidth(resizeCol-1, listWidth - totColWidth) + #---------------------------------------------------------------------------- -SEL_FOC = wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED +SEL_FOC = wx.LIST_STATE_SELECTED | wx.LIST_STATE_FOCUSED def selectBeforePopup(event): """Ensures the item the mouse is pointing at is selected before a popup. Works with both single-select and multi-select lists.""" ctrl = event.GetEventObject() - if isinstance(ctrl, wxListCtrl): + if isinstance(ctrl, wx.ListCtrl): n, flags = ctrl.HitTest(event.GetPosition()) if n >= 0: - if not ctrl.GetItemState(n, wxLIST_STATE_SELECTED): + if not ctrl.GetItemState(n, wx.LIST_STATE_SELECTED): for i in range(ctrl.GetItemCount()): ctrl.SetItemState(i, 0, SEL_FOC) #for i in getListCtrlSelection(ctrl, SEL_FOC): # ctrl.SetItemState(i, 0, SEL_FOC) ctrl.SetItemState(n, SEL_FOC, SEL_FOC) -def getListCtrlSelection(listctrl, state=wxLIST_STATE_SELECTED): + +def getListCtrlSelection(listctrl, state=wx.LIST_STATE_SELECTED): """ Returns list of item indexes of given state (selected by defaults) """ res = [] idx = -1 while 1: - idx = listctrl.GetNextItem(idx, wxLIST_NEXT_ALL, state) + idx = listctrl.GetNextItem(idx, wx.LIST_NEXT_ALL, state) if idx == -1: break res.append(idx) return res +wxEVT_DOPOPUPMENU = wx.NewEventType() +EVT_DOPOPUPMENU = wx.PyEventBinder(wxEVT_DOPOPUPMENU, 0) + + class ListCtrlSelectionManagerMix: """Mixin that defines a platform independent selection policy As selection single and multi-select list return the item index or a list of item indexes respectively. """ - wxEVT_DOPOPUPMENU = wxNewId() _menu = None def __init__(self): - EVT_RIGHT_DOWN(self, self.OnLCSMRightDown) - self.Connect(-1, -1, self.wxEVT_DOPOPUPMENU, self.OnLCSMDoPopup) + self.Bind(wx.EVT_RIGHT_DOWN, self.OnLCSMRightDown) + self.Bind(EVT_DOPOPUPMENU, self.OnLCSMDoPopup) +# self.Connect(-1, -1, self.wxEVT_DOPOPUPMENU, self.OnLCSMDoPopup) + def getPopupMenu(self): """ Override to implement dynamic menus (create) """ return self._menu + def setPopupMenu(self, menu): """ Must be set for default behaviour """ self._menu = menu + def afterPopupMenu(self, menu): """ Override to implement dynamic menus (destroy) """ pass + def getSelection(self): res = getListCtrlSelection(self) - if self.GetWindowStyleFlag() & wxLC_SINGLE_SEL: + if self.GetWindowStyleFlag() & wx.LC_SINGLE_SEL: if res: return res[0] else: @@ -304,19 +363,253 @@ class ListCtrlSelectionManagerMix: else: return res + def OnLCSMRightDown(self, event): selectBeforePopup(event) event.Skip() menu = self.getPopupMenu() if menu: - evt = wxPyEvent() - evt.SetEventType(self.wxEVT_DOPOPUPMENU) + evt = wx.PyEvent() + evt.SetEventType(wxEVT_DOPOPUPMENU) evt.menu = menu evt.pos = event.GetPosition() - wxPostEvent(self, evt) + wx.PostEvent(self, evt) + def OnLCSMDoPopup(self, event): self.PopupMenu(event.menu, event.pos) self.afterPopupMenu(event.menu) -#---------------------------------------------------------------------- + +#---------------------------------------------------------------------------- +from bisect import bisect + + +class TextEditMixin: + """ + A mixin class that enables any text in any column of a + multi-column listctrl to be edited by clicking on the given row + and column. You close the text editor by hitting the ENTER key or + clicking somewhere else on the listctrl. You switch to the next + column by hiting TAB. + + To use the mixin you have to include it in the class definition + and call the __init__ function:: + + class TestListCtrl(wx.ListCtrl, TextEditMixin): + def __init__(self, parent, ID, pos=wx.DefaultPosition, + size=wx.DefaultSize, style=0): + wx.ListCtrl.__init__(self, parent, ID, pos, size, style) + TextEditMixin.__init__(self) + + + Authors: Steve Zatz, Pim Van Heuven (pim@think-wize.com) + """ + + editorBgColour = wx.Colour(255,255,175) # Yellow + editorFgColour = wx.Colour(0,0,0) # black + + def __init__(self): + #editor = wx.TextCtrl(self, -1, pos=(-1,-1), size=(-1,-1), + # style=wx.TE_PROCESS_ENTER|wx.TE_PROCESS_TAB \ + # |wx.TE_RICH2) + + self.make_editor() + self.Bind(wx.EVT_TEXT_ENTER, self.CloseEditor) + self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown) + self.Bind(wx.EVT_LEFT_DCLICK, self.OnLeftDown) + self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnItemSelected) + + + def make_editor(self, col_style=wx.LIST_FORMAT_LEFT): + editor = wx.PreTextCtrl() + + style =wx.TE_PROCESS_ENTER|wx.TE_PROCESS_TAB|wx.TE_RICH2 + style |= {wx.LIST_FORMAT_LEFT: wx.TE_LEFT, + wx.LIST_FORMAT_RIGHT: wx.TE_RIGHT, + wx.LIST_FORMAT_CENTRE : wx.TE_CENTRE + }[col_style] + + editor.Create(self, -1, style=style) + editor.SetBackgroundColour(self.editorBgColour) + editor.SetForegroundColour(self.editorFgColour) + font = self.GetFont() + editor.SetFont(font) + + self.curRow = 0 + self.curCol = 0 + + editor.Hide() + self.editor = editor + + self.col_style = col_style + self.editor.Bind(wx.EVT_CHAR, self.OnChar) + self.editor.Bind(wx.EVT_KILL_FOCUS, self.CloseEditor) + + + def OnItemSelected(self, evt): + self.curRow = evt.GetIndex() + evt.Skip() + + + def OnChar(self, event): + ''' Catch the TAB, Shift-TAB, cursor DOWN/UP key code + so we can open the editor at the next column (if any).''' + + keycode = event.GetKeyCode() + if keycode == wx.WXK_TAB and event.ShiftDown(): + self.CloseEditor() + if self.curCol-1 >= 0: + self.OpenEditor(self.curCol-1, self.curRow) + + elif keycode == wx.WXK_TAB: + self.CloseEditor() + if self.curCol+1 < self.GetColumnCount(): + self.OpenEditor(self.curCol+1, self.curRow) + + elif keycode == wx.WXK_ESCAPE: + self.CloseEditor() + + elif keycode == wx.WXK_DOWN: + self.CloseEditor() + if self.curRow+1 < self.GetItemCount(): + self._SelectIndex(self.curRow+1) + self.OpenEditor(self.curCol, self.curRow) + + elif keycode == wx.WXK_UP: + self.CloseEditor() + if self.curRow > 0: + self._SelectIndex(self.curRow-1) + self.OpenEditor(self.curCol, self.curRow) + + else: + event.Skip() + + + def OnLeftDown(self, evt=None): + ''' Examine the click and double + click events to see if a row has been click on twice. If so, + determine the current row and columnn and open the editor.''' + + if self.editor.IsShown(): + self.CloseEditor() + + x,y = evt.GetPosition() + row,flags = self.HitTest((x,y)) + + if row != self.curRow: # self.curRow keeps track of the current row + evt.Skip() + return + + # the following should really be done in the mixin's init but + # the wx.ListCtrl demo creates the columns after creating the + # ListCtrl (generally not a good idea) on the other hand, + # doing this here handles adjustable column widths + + self.col_locs = [0] + loc = 0 + for n in range(self.GetColumnCount()): + loc = loc + self.GetColumnWidth(n) + self.col_locs.append(loc) + + + col = bisect(self.col_locs, x+self.GetScrollPos(wx.HORIZONTAL)) - 1 + self.OpenEditor(col, row) + + + def OpenEditor(self, col, row): + ''' Opens an editor at the current position. ''' + + if self.GetColumn(col).m_format != self.col_style: + self.make_editor(self.GetColumn(col).m_format) + + x0 = self.col_locs[col] + x1 = self.col_locs[col+1] - x0 + + scrolloffset = self.GetScrollPos(wx.HORIZONTAL) + + # scroll forward + if x0+x1-scrolloffset > self.GetSize()[0]: + if wx.Platform == "__WXMSW__": + # don't start scrolling unless we really need to + offset = x0+x1-self.GetSize()[0]-scrolloffset + # scroll a bit more than what is minimum required + # so we don't have to scroll everytime the user presses TAB + # which is very tireing to the eye + addoffset = self.GetSize()[0]/4 + # but be careful at the end of the list + if addoffset + scrolloffset < self.GetSize()[0]: + offset += addoffset + + self.ScrollList(offset, 0) + scrolloffset = self.GetScrollPos(wx.HORIZONTAL) + else: + # Since we can not programmatically scroll the ListCtrl + # close the editor so the user can scroll and open the editor + # again + self.editor.SetValue(self.GetItem(row, col).GetText()) + self.curRow = row + self.curCol = col + self.CloseEditor() + return + + y0 = self.GetItemRect(row)[1] + + editor = self.editor + editor.SetDimensions(x0-scrolloffset,y0, x1,-1) + + editor.SetValue(self.GetItem(row, col).GetText()) + editor.Show() + editor.Raise() + editor.SetSelection(-1,-1) + editor.SetFocus() + + self.curRow = row + self.curCol = col + + + # FIXME: this function is usually called twice - second time because + # it is binded to wx.EVT_KILL_FOCUS. Can it be avoided? (MW) + def CloseEditor(self, evt=None): + ''' Close the editor and save the new value to the ListCtrl. ''' + text = self.editor.GetValue() + self.editor.Hide() + self.SetFocus() + + # post wxEVT_COMMAND_LIST_END_LABEL_EDIT + # Event can be vetoed. It doesn't has SetEditCanceled(), what would + # require passing extra argument to CloseEditor() + evt = wx.ListEvent(wx.wxEVT_COMMAND_LIST_END_LABEL_EDIT, self.GetId()) + evt.m_itemIndex = self.curRow + evt.m_col = self.curCol + item = self.GetItem(self.curRow, self.curCol) + evt.m_item.SetId(item.GetId()) + evt.m_item.SetColumn(item.GetColumn()) + evt.m_item.SetData(item.GetData()) + evt.m_item.SetText(text) #should be empty string if editor was canceled + ret = self.GetEventHandler().ProcessEvent(evt) + if not ret or evt.IsAllowed(): + if self.IsVirtual(): + # replace by whather you use to populate the virtual ListCtrl + # data source + self.SetVirtualData(self.curRow, self.curCol, text) + else: + self.SetStringItem(self.curRow, self.curCol, text) + self.RefreshItem(self.curRow) + + def _SelectIndex(self, row): + listlen = self.GetItemCount() + if row < 0 and not listlen: + return + if row > (listlen-1): + row = listlen -1 + + self.SetItemState(self.curRow, ~wx.LIST_STATE_SELECTED, + wx.LIST_STATE_SELECTED) + self.EnsureVisible(row) + self.SetItemState(row, wx.LIST_STATE_SELECTED, + wx.LIST_STATE_SELECTED) + + + +#----------------------------------------------------------------------------