controls/CustomTree.py
author Edouard Tisserant <edouard.tisserant@gmail.com>
Tue, 22 Mar 2022 14:50:46 +0100
branchwxPython4
changeset 3442 29dbdb09da2e
parent 3303 0ffb41625592
child 3750 f62625418bff
permissions -rw-r--r--
Tests: fix project edit test sikuli IDE test.

Background click based on bitmap matching doesn't work.
Grid dots are not good match candidates.
Rendering probably affected by virtual display's bpp or rasterizer approximations.
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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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from __future__ import absolute_import
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from __future__ import division
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import wx
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import wx.lib.agw.customtreectrl as CT
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from util.BitmapLibrary import GetBitmap
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# Customize CustomTreeItem for adding icon on item left
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CT.GenericTreeItem._ExtraImage = None
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def SetExtraImage(self, image):
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    self._type = (1 if image is not None else 0)
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    self._ExtraImage = image
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CT.GenericTreeItem.SetExtraImage = SetExtraImage
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_DefaultGetCurrentCheckedImage = CT.GenericTreeItem.GetCurrentCheckedImage
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def GetCurrentCheckedImage(self):
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    if self._ExtraImage is not None:
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        return self._ExtraImage
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    return _DefaultGetCurrentCheckedImage(self)
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CT.GenericTreeItem.GetCurrentCheckedImage = GetCurrentCheckedImage
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class CustomTree(CT.CustomTreeCtrl):
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    def __init__(self, *args, **kwargs):
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        CT.CustomTreeCtrl.__init__(self, *args, **kwargs)
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        self.BackgroundBitmap = None
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        self.BackgroundAlign = wx.ALIGN_LEFT | wx.ALIGN_TOP
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        self.AddMenu = None
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        self.Enabled = False
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        self.Bind(wx.EVT_SCROLLWIN, self.OnScroll)
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        self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp)
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    def SetBackgroundBitmap(self, bitmap, align):
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        self.BackgroundBitmap = bitmap
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        self.BackgroundAlign = align
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    def SetImageListCheck(self, sizex, sizey, imglist=None):
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        CT.CustomTreeCtrl.SetImageListCheck(self, sizex, sizey, imglist=None)
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        self.ExtraImages = {}
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        for image in ["function", "functionBlock", "program"]:
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            self.ExtraImages[image] = self._imageListCheck.Add(GetBitmap(image.upper()))
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    def SetItemExtraImage(self, item, bitmap):
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        dc = wx.ClientDC(self)
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        image = self.ExtraImages.get(bitmap)
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        if image is not None:
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            item.SetExtraImage(image)
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        else:
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            item.SetExtraImage(None)
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        self.CalculateSize(item, dc)
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        self.RefreshLine(item)
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    def SetAddMenu(self, add_menu):
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        self.AddMenu = add_menu
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    def Enable(self, enabled):
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        self.Enabled = enabled
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    def GetBitmapRect(self):
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        client_size = self.GetClientSize()
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        bitmap_size = self.BackgroundBitmap.GetSize()
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        if self.BackgroundAlign & wx.ALIGN_RIGHT:
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            x = client_size[0] - bitmap_size[0]
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        elif self.BackgroundAlign & wx.ALIGN_CENTER_HORIZONTAL:
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            x = (client_size[0] - bitmap_size[0]) // 2
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        else:
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            x = 0
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        if self.BackgroundAlign & wx.ALIGN_BOTTOM:
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            y = client_size[1] - bitmap_size[1]
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        elif self.BackgroundAlign & wx.ALIGN_CENTER_VERTICAL:
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            y = (client_size[1] - bitmap_size[1]) // 2
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        else:
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            y = 0
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        return wx.Rect(x, y, bitmap_size[0], bitmap_size[1])
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    def OnLeftUp(self, event):
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        if self.Enabled:
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            pos = event.GetPosition()
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            _item, flags = self.HitTest(pos)
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            bitmap_rect = self.GetBitmapRect()
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            if ((bitmap_rect.Contains(pos.x, pos.y) or
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                 flags & wx.TREE_HITTEST_NOWHERE) and self.AddMenu is not None):
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                wx.CallAfter(self.PopupMenu, self.AddMenu, pos.x, pos.y)
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        event.Skip()
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    def OnEraseBackground(self, event):
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        dc = event.GetDC()
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        if not dc:
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            dc = wx.ClientDC(self)
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            rect = self.GetUpdateRegion().GetBox()
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            dc.SetClippingRect(rect)
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        dc.Clear()
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        bitmap_rect = self.GetBitmapRect()
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        dc.DrawBitmap(self.BackgroundBitmap, bitmap_rect.x, bitmap_rect.y)
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    def OnScroll(self, event):
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        wx.CallAfter(self.Refresh)
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        event.Skip()
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    def OnSize(self, event):
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        CT.CustomTreeCtrl.OnSize(self, event)
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        self.Refresh()