#===============================================================================
# Copyright (C) 2010 Diego Duclos
#
# This file is part of pyfa.
#
# pyfa 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 3 of the License, or
# (at your option) any later version.
#
# pyfa 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 pyfa.  If not, see <http://www.gnu.org/licenses/>.
#===============================================================================

import os.path
import config
import wx
import time

try:
    from collections import OrderedDict
except ImportError:
    from utils.compat import OrderedDict

cachedBitmapsCount = 0
cachedBitmaps = OrderedDict()
dontUseCachedBitmaps = False

def getStaticBitmap(name, parent, location):
    static = wx.StaticBitmap(parent)
    static.SetBitmap(getBitmap(name,location))
    return static


def getBitmap(name,location):

    global cachedBitmaps
    global cachedBitmapsCount
    global dontUseCachedBitmaps

    if dontUseCachedBitmaps:
        img = getImage(name, location)
        if img is not None:
            return img.ConvertToBitmap()

    path = "%s%s" % (name,location)
    MAX_BMPS = 500
#    start = time.clock()
    if cachedBitmapsCount == MAX_BMPS:
        cachedBitmaps.popitem(False)
        cachedBitmapsCount -=1

    if path not in cachedBitmaps:
        img = getImage(name, location)
        if img is not None:
            bmp = img.ConvertToBitmap()
        else:
            bmp = None
        cachedBitmaps[path] = bmp
        cachedBitmapsCount += 1
    else:
        bmp = cachedBitmaps[path]

#    print "#BMPs:%d - Current took: %.8f" % (cachedBitmapsCount,time.clock() - start)
    return bmp

def stripPath(fname):
    """
    Here we extract 'core' of icon name. Path and
    extension are sometimes specified in database
    but we don't need them.
    """
    # Path before the icon file name
    fname = fname.split('/')[-1]
    # Extension
    fname = fname.rsplit('.', 1)[0]
    return fname

def getImage(name, location):
    filename = "{0}.png".format(name)
    location = os.path.join(config.pyfaPath, 'imgs', location, filename)

    if os.path.exists(location):
        return wx.Image(location)
    else:
        print "Missing icon file: {0}, {1}".format(filename, location)