controls/DurationCellEditor.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Mon, 16 Jan 2017 12:22:58 +0300
changeset 1636 ad3dee8b6d48
parent 1571 486f94a8032c
child 1730 64d8f52bc8c8
permissions -rw-r--r--
change white background for icons in PouInstanceVariablePanel to transparent

in wxPython 2.8 panel has white background and therefore white
background is appropriate, but in wxPython 3.0 panel has grey
background (on GNU/Linux and on Windows).
Transparent background looks good on both wxPython versions and on all platforms.
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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import wx
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from dialogs.DurationEditorDialog import DurationEditorDialog
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class DurationCellControl(wx.PyControl):
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    '''
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    Custom cell editor control with a text box and a button that launches
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    the DurationEditorDialog.
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    '''
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    def __init__(self, parent):
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        wx.Control.__init__(self, parent)
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        main_sizer = wx.FlexGridSizer(cols=2, hgap=0, rows=1, vgap=0)
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        main_sizer.AddGrowableCol(0)
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        main_sizer.AddGrowableRow(0)
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        # create location text control
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        self.Duration = wx.TextCtrl(self, size=wx.Size(0, -1), 
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              style=wx.TE_PROCESS_ENTER)
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        self.Duration.Bind(wx.EVT_KEY_DOWN, self.OnDurationChar)
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        main_sizer.AddWindow(self.Duration, flag=wx.GROW)
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        # create browse button
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        self.EditButton = wx.Button(self, label='...', size=wx.Size(30, -1))
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        self.Bind(wx.EVT_BUTTON, self.OnEditButtonClick, self.EditButton)
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        main_sizer.AddWindow(self.EditButton, flag=wx.GROW)
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        self.Bind(wx.EVT_SIZE, self.OnSize)
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        self.SetSizer(main_sizer)
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        self.Default = None
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    def SetValue(self, value):
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        self.Default = value
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        self.Duration.SetValue(value)
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    def GetValue(self):
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        return self.Duration.GetValue()
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    def OnSize(self, event):
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        self.Layout()
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    def OnEditButtonClick(self, event):
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        # pop up the Duration Editor dialog
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        dialog = DurationEditorDialog(self)
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        dialog.SetDuration(self.Duration.GetValue())
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        if dialog.ShowModal() == wx.ID_OK:
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            # set the duration
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            self.Duration.SetValue(dialog.GetDuration())
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        dialog.Destroy()
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        self.Duration.SetFocus()
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    def OnDurationChar(self, event):
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        keycode = event.GetKeyCode()
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        if keycode in [wx.WXK_RETURN, wx.WXK_TAB]:
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            self.Parent.Parent.ProcessEvent(event)
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        elif keycode == wx.WXK_ESCAPE:
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            self.Duration.SetValue(self.Default)
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            self.Parent.Parent.CloseEditControl()
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        else:
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            event.Skip()
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    def SetInsertionPoint(self, i):
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        self.Duration.SetInsertionPoint(i)
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    def SetFocus(self):
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        self.Duration.SetFocus()
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class DurationCellEditor(wx.grid.PyGridCellEditor):
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    '''
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    Grid cell editor that uses DurationCellControl to display an edit button.
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    '''
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    def __init__(self, table, colname):
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        wx.grid.PyGridCellEditor.__init__(self)
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        self.Table = table
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        self.Colname = colname
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    def __del__(self):
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        self.CellControl = None
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    def Create(self, parent, id, evt_handler):
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        self.CellControl = DurationCellControl(parent)
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        self.SetControl(self.CellControl)
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        if evt_handler:
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            self.CellControl.PushEventHandler(evt_handler)
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    def BeginEdit(self, row, col, grid):
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        self.CellControl.Enable()
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        self.CellControl.SetValue(self.Table.GetValueByName(row, self.Colname))
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        self.CellControl.SetFocus()
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    def EndEditInternal(self, row, col, grid, old_duration):
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        duration = self.CellControl.GetValue()
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        changed = duration != old_duration
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        if changed:
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            self.Table.SetValueByName(row, self.Colname, duration)
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        self.CellControl.Disable()
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        return changed
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    if wx.VERSION >= (3, 0, 0):
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        def EndEdit(self, row, col, grid, oldval):
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            return self.EndEditInternal(row, col, grid, oldval)
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    else:
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        def EndEdit(self, row, col, grid):
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            oldval = self.Table.GetValueByName(row, self.Colname)            
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            return self.EndEditInternal(row, col, grid, oldval)    
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    def SetSize(self, rect):
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        self.CellControl.SetDimensions(rect.x + 1, rect.y,
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                                        rect.width, rect.height,
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                                        wx.SIZE_ALLOW_MINUS_ONE)
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    def Clone(self):
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        return DurationCellEditor(self.Table)