HGKeeper

#!/usr/bin/env python

# -*- coding: utf-8 -*-

#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor

#based on the plcopen standard.

#See COPYING file for copyrights details.

#This library 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 2.1 of the License, or (at your option) any later version.

#This library 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 library; if not, write to the Free Software

#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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

beremiz