beremiz

fix strange behavior on Backspace press in ST

2016-12-23, Andrey Skvortsov
41ca586da9dc
fix strange behavior on Backspace press in ST

Before:
if text was selected and cursor was at indention, one indention (two
spaces) was removed.

if cursor was at start position of the line, then nothing happened.

if cursor was in the middle of indention then on backspace more
indention were added


Now:
if text is selected, it will be removed.
if cursor is at start position, then new line will be removed.
if cursor was in the middle of indention one indention is removed.
#!/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) 2012: 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.
import os
import wx
#-------------------------------------------------------------------------------
# Library Structures
#-------------------------------------------------------------------------------
BitmapLibrary = {}
BitmapFolders = []
#-------------------------------------------------------------------------------
# Library Helpers
#-------------------------------------------------------------------------------
def AddBitmapFolder(path):
if os.path.exists(path) and os.path.isdir(path) and path not in BitmapFolders:
BitmapFolders.append(path)
def SearchBitmap(bmp_name):
for folder in BitmapFolders:
bmp_path = os.path.join(folder, bmp_name + ".png")
if os.path.isfile(bmp_path):
return wx.Bitmap(bmp_path)
return None
def GetBitmap(bmp_name1, bmp_name2=None, size=None):
bmp = BitmapLibrary.get((bmp_name1, bmp_name2, size))
if bmp is not None:
return bmp
if bmp_name2 is None:
bmp = SearchBitmap(bmp_name1)
else:
# Bitmap with two icon
bmp1 = SearchBitmap(bmp_name1)
bmp2 = SearchBitmap(bmp_name2)
if bmp1 is not None and bmp2 is not None:
# Calculate bitmap size
width = bmp1.GetWidth() + bmp2.GetWidth() - 1
height = max(bmp1.GetHeight(), bmp2.GetHeight())
# Create bitmap with both icons
bmp = wx.EmptyBitmap(width, height)
dc = wx.MemoryDC()
dc.SelectObject(bmp)
dc.Clear()
dc.DrawBitmap(bmp1, 0, 0)
dc.DrawBitmap(bmp2, bmp1.GetWidth() - 1, 0)
dc.Destroy()
elif bmp1 is not None:
bmp = bmp1
elif bmp2 is not None:
bmp = bmp2
if bmp is not None:
BitmapLibrary[(bmp_name1, bmp_name2, size)] = bmp
return bmp