148 lines
4.8 KiB
Python
148 lines
4.8 KiB
Python
# =============================================================================
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# Copyright (C) 2010 Diego Duclos
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#
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# This file is part of pyfa.
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#
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# pyfa is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# pyfa 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 pyfa. If not, see <http://www.gnu.org/licenses/>.
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# =============================================================================
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import io
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import os.path
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import zipfile
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from collections import OrderedDict
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# noinspection PyPackageRequirements
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import wx
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from logbook import Logger
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import config
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pyfalog = Logger(__name__)
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class BitmapLoader:
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# Can be None if we're running from tests
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if config.imgsZIP is None:
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pyfalog.info("Using local image files.")
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archive = None
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else:
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try:
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archive = zipfile.ZipFile(config.imgsZIP, 'r')
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pyfalog.info("Using zipped image files.")
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except (IOError, TypeError):
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pyfalog.info("Using local image files.")
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archive = None
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cached_bitmaps = OrderedDict()
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dont_use_cached_bitmaps = False
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max_cached_bitmaps = 500
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scaling_factor = None
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@classmethod
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def getStaticBitmap(cls, name, parent, location):
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bitmap = cls.getBitmap(name or 0, location)
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if bitmap is None:
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return None
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static = wx.StaticBitmap(parent)
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static.SetBitmap(bitmap)
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return static
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@classmethod
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def getBitmap(cls, name, location):
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if cls.dont_use_cached_bitmaps:
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return cls.loadBitmap(name, location)
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path = "%s%s" % (name, location)
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if len(cls.cached_bitmaps) == cls.max_cached_bitmaps:
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cls.cached_bitmaps.popitem(False)
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if path not in cls.cached_bitmaps:
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bmp = cls.loadBitmap(name, location)
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cls.cached_bitmaps[path] = bmp
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else:
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bmp = cls.cached_bitmaps[path]
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return bmp
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@classmethod
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def getImage(cls, name, location):
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bmp = cls.getBitmap(name, location)
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if bmp is not None:
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return bmp.ConvertToImage()
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else:
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return None
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@classmethod
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def loadBitmap(cls, name, location):
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if cls.scaling_factor is None:
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cls.scaling_factor = 1 if 'wxGTK' in wx.PlatformInfo else int(wx.GetApp().GetTopWindow().GetContentScaleFactor())
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scale = cls.scaling_factor
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filename, img = cls.loadScaledBitmap(name, location, scale)
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while img is None and scale > 0:
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# can't find the correctly scaled image, fallback to smaller scales
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scale -= 1
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filename, img = cls.loadScaledBitmap(name, location, scale)
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if img is None:
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pyfalog.warning("Missing icon file: {0}/{1}".format(location, filename))
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return None
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bmp: wx.Bitmap = img.ConvertToBitmap()
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if scale > 1:
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bmp.SetSize((bmp.GetWidth() // scale, bmp.GetHeight() // scale))
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return bmp
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@classmethod
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def loadScaledBitmap(cls, name, location, scale=0):
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"""Attempts to load a scaled bitmap.
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Args:
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name (str): TypeID or basename of the image being requested.
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location (str): Path to a location that may contain the image.
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scale (int): Scale factor of the image variant to load. If ``0``, attempts to load the unscaled variant.
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Returns:
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(str, wx.Image): Tuple of the filename that may have been loaded and the image at that location. The
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filename will always be present, but the image may be ``None``.
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"""
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filename = "{0}@{1}x.png".format(name, scale) if scale > 0 else "{0}.png".format(name)
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img = cls.loadImage(filename, location)
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return filename, img
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@classmethod
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def loadImage(cls, filename, location):
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if cls.archive:
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path = os.path.join(location, filename)
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if os.sep != "/" and os.sep in path:
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path = path.replace(os.sep, "/")
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try:
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img_data = cls.archive.read(path)
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bbuf = io.BytesIO(img_data)
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return wx.Image(bbuf)
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except KeyError:
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pyfalog.warning("Missing icon file from zip: {0}".format(path))
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else:
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path = os.path.join(config.pyfaPath, 'imgs' + os.sep + location + os.sep + filename)
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if os.path.exists(path):
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return wx.Image(path)
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else:
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return None
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