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.
#!/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
from __future__ import division
import wx
import wx.lib.agw.customtreectrl as CT

from util.BitmapLibrary import GetBitmap

# Customize CustomTreeItem for adding icon on item left
CT.GenericTreeItem._ExtraImage = None


def SetExtraImage(self, image):
    self._type = (1 if image is not None else 0)
    self._ExtraImage = image


CT.GenericTreeItem.SetExtraImage = SetExtraImage

_DefaultGetCurrentCheckedImage = CT.GenericTreeItem.GetCurrentCheckedImage


def GetCurrentCheckedImage(self):
    if self._ExtraImage is not None:
        return self._ExtraImage
    return _DefaultGetCurrentCheckedImage(self)


CT.GenericTreeItem.GetCurrentCheckedImage = GetCurrentCheckedImage


class CustomTree(CT.CustomTreeCtrl):

    def __init__(self, *args, **kwargs):
        CT.CustomTreeCtrl.__init__(self, *args, **kwargs)

        self.BackgroundBitmap = None
        self.BackgroundAlign = wx.ALIGN_LEFT | wx.ALIGN_TOP

        self.AddMenu = None
        self.Enabled = False

        self.Bind(wx.EVT_SCROLLWIN, self.OnScroll)
        self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp)

    def SetBackgroundBitmap(self, bitmap, align):
        self.BackgroundBitmap = bitmap
        self.BackgroundAlign = align

    def SetImageListCheck(self, sizex, sizey, imglist=None):
        CT.CustomTreeCtrl.SetImageListCheck(self, sizex, sizey, imglist=None)

        self.ExtraImages = {}
        for image in ["function", "functionBlock", "program"]:
            self.ExtraImages[image] = self._imageListCheck.Add(GetBitmap(image.upper()))

    def SetItemExtraImage(self, item, bitmap):
        dc = wx.ClientDC(self)
        image = self.ExtraImages.get(bitmap)
        if image is not None:
            item.SetExtraImage(image)
        else:
            item.SetExtraImage(None)
        self.CalculateSize(item, dc)
        self.RefreshLine(item)

    def SetAddMenu(self, add_menu):
        self.AddMenu = add_menu

    def Enable(self, enabled):
        self.Enabled = enabled

    def GetBitmapRect(self):
        client_size = self.GetClientSize()
        bitmap_size = self.BackgroundBitmap.GetSize()

        if self.BackgroundAlign & wx.ALIGN_RIGHT:
            x = client_size[0] - bitmap_size[0]
        elif self.BackgroundAlign & wx.ALIGN_CENTER_HORIZONTAL:
            x = (client_size[0] - bitmap_size[0]) // 2
        else:
            x = 0

        if self.BackgroundAlign & wx.ALIGN_BOTTOM:
            y = client_size[1] - bitmap_size[1]
        elif self.BackgroundAlign & wx.ALIGN_CENTER_VERTICAL:
            y = (client_size[1] - bitmap_size[1]) // 2
        else:
            y = 0

        return wx.Rect(x, y, bitmap_size[0], bitmap_size[1])

    def OnLeftUp(self, event):
        if self.Enabled:
            pos = event.GetPosition()
            _item, flags = self.HitTest(pos)

            bitmap_rect = self.GetBitmapRect()
            if ((bitmap_rect.Contains(pos.x, pos.y) or
                 flags & wx.TREE_HITTEST_NOWHERE) and self.AddMenu is not None):
                wx.CallAfter(self.PopupMenu, self.AddMenu, pos.x, pos.y)
        event.Skip()

    def OnEraseBackground(self, event):
        dc = event.GetDC()

        if not dc:
            dc = wx.ClientDC(self)
            rect = self.GetUpdateRegion().GetBox()
            dc.SetClippingRect(rect)

        dc.Clear()

        bitmap_rect = self.GetBitmapRect()
        dc.DrawBitmap(self.BackgroundBitmap, bitmap_rect.x, bitmap_rect.y)

    def OnScroll(self, event):
        wx.CallAfter(self.Refresh)
        event.Skip()

    def OnSize(self, event):
        CT.CustomTreeCtrl.OnSize(self, event)
        self.Refresh()