controls/CustomEditableListBox.py
author Edouard Tisserant
Fri, 28 Feb 2020 16:09:21 +0100
branchsvghmi
changeset 2844 eee5dcd9fc92
parent 1881 091005ec69c4
child 3303 0ffb41625592
permissions -rw-r--r--
SVGHMI: detachable and discardable elements sets, Reworked geometric intersection, toward more accurate page content detection.

Moved page's widget/element dependency crawling functions so that it is possible to compute a global detachable and discardable elements sets.
Reworked geometric intersection detection logic to distinguish ovelapping and inclusion.
Goal is to include englobing and overlapping graphical elements, but not groups (would then include everything around...). Intermediate commit, to be continued.
#!/usr/bin/env python
# -*- coding: utf-8 -*-

# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING file for copyrights details.
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.


from __future__ import absolute_import
import wx
import wx.gizmos


class CustomEditableListBox(wx.gizmos.EditableListBox):

    def __init__(self, *args, **kwargs):
        wx.gizmos.EditableListBox.__init__(self, *args, **kwargs)

        listbox = self.GetListCtrl()
        listbox.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown)
        listbox.Bind(wx.EVT_LIST_BEGIN_LABEL_EDIT, self.OnLabelBeginEdit)
        listbox.Bind(wx.EVT_LIST_END_LABEL_EDIT, self.OnLabelEndEdit)

        for button, tooltip, call_function in [
                (self.GetEditButton(), _("Edit item"), "_OnEditButton"),
                (self.GetNewButton(), _("New item"), "_OnNewButton"),
                (self.GetDelButton(), _("Delete item"), "_OnDelButton"),
                (self.GetUpButton(), _("Move up"), "_OnUpButton"),
                (self.GetDownButton(), _("Move down"), "_OnDownButton")]:
            button.SetToolTipString(tooltip)
            button.Bind(wx.EVT_BUTTON, self.GetButtonPressedFunction(call_function))

        self.Editing = False

    def EnsureCurrentItemVisible(self):
        listctrl = self.GetListCtrl()
        listctrl.EnsureVisible(listctrl.GetFocusedItem())

    def OnLabelBeginEdit(self, event):
        self.Editing = True
        func = getattr(self, "_OnLabelBeginEdit", None)
        if func is not None:
            func(event)
        else:
            event.Skip()

    def OnLabelEndEdit(self, event):
        self.Editing = False
        func = getattr(self, "_OnLabelEndEdit", None)
        if func is not None:
            func(event)
        else:
            event.Skip()

    def GetButtonPressedFunction(self, call_function):
        def OnButtonPressed(event):
            if wx.Platform != '__WXMSW__' or not self.Editing:
                func = getattr(self, call_function, None)
                if func is not None:
                    func(event)
                    wx.CallAfter(self.EnsureCurrentItemVisible)
                else:
                    wx.CallAfter(self.EnsureCurrentItemVisible)
                    event.Skip()
        return OnButtonPressed

    def OnKeyDown(self, event):
        button = None
        keycode = event.GetKeyCode()
        if keycode in (wx.WXK_ADD, wx.WXK_NUMPAD_ADD):
            button = self.GetNewButton()
        elif keycode in (wx.WXK_DELETE, wx.WXK_NUMPAD_DELETE):
            button = self.GetDelButton()
        elif keycode == wx.WXK_UP and event.ShiftDown():
            button = self.GetUpButton()
        elif keycode == wx.WXK_DOWN and event.ShiftDown():
            button = self.GetDownButton()
        elif keycode == wx.WXK_SPACE:
            button = self.GetEditButton()
        if button is not None and button.IsEnabled():
            button.ProcessEvent(wx.CommandEvent(wx.EVT_BUTTON.typeId, button.GetId()))
        else:
            event.Skip()