コード例 #1
0
ファイル: helpers.py プロジェクト: eevee/pyScss
def stylesheet_url(path, only_path=False, cache_buster=True):
    """
    Generates a path to an asset found relative to the project's css directory.
    Passing a true value as the second argument will cause the only the path to
    be returned instead of a `url()` function
    """
    filepath = StringValue(path).value
    if callable(config.STATIC_ROOT):
        try:
            _file, _storage = list(config.STATIC_ROOT(filepath))[0]
            d_obj = _storage.modified_time(_file)
            filetime = int(time.mktime(d_obj.timetuple()))
        except:
            filetime = 'NA'
    else:
        _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
        if os.path.exists(_path):
            filetime = int(os.path.getmtime(_path))
        else:
            filetime = 'NA'
    BASE_URL = config.STATIC_URL

    url = '%s%s' % (BASE_URL, filepath)
    if cache_buster:
        url = add_cache_buster(url, filetime)
    if not only_path:
        url = 'url("%s")' % (url)
    return StringValue(url)
コード例 #2
0
ファイル: images.py プロジェクト: magical/pyScss
def image_height(image):
    """
    Returns the height of the image found at the path supplied by `image`
    relative to your project's images directory.
    """
    if not Image:
        raise Exception("Images manipulation require PIL")
    filepath = StringValue(image).value
    path = None
    try:
        height = _image_size_cache[filepath][1]
    except KeyError:
        height = 0
        if callable(config.STATIC_ROOT):
            try:
                _file, _storage = list(config.STATIC_ROOT(filepath))[0]
                path = _storage.open(_file)
            except:
                pass
        else:
            _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
            if os.path.exists(_path):
                path = open(_path, 'rb')
        if path:
            image = Image.open(path)
            size = image.size
            height = size[1]
            _image_size_cache[filepath] = size
    return NumberValue(height, 'px')
コード例 #3
0
ファイル: helpers.py プロジェクト: eevee/pyScss
def _font_url(path, only_path=False, cache_buster=True, inline=False):
    filepath = StringValue(path).value
    path = None
    if callable(config.STATIC_ROOT):
        try:
            _file, _storage = list(config.STATIC_ROOT(filepath))[0]
            d_obj = _storage.modified_time(_file)
            filetime = int(time.mktime(d_obj.timetuple()))
            if inline:
                path = _storage.open(_file)
        except:
            filetime = 'NA'
    else:
        _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
        if os.path.exists(_path):
            filetime = int(os.path.getmtime(_path))
            if inline:
                path = open(_path, 'rb')
        else:
            filetime = 'NA'
    BASE_URL = config.STATIC_URL

    if path and inline:
        mime_type = mimetypes.guess_type(filepath)[0]
        url = 'data:' + mime_type + ';base64,' + base64.b64encode(path.read())
    else:
        url = '%s%s' % (BASE_URL, filepath)
        if cache_buster:
            url = add_cache_buster(url, filetime)

    if not only_path:
        url = 'url("%s")' % escape(url)
    return StringValue(url)
コード例 #4
0
def stylesheet_url(path, only_path=False, cache_buster=True):
    """
    Generates a path to an asset found relative to the project's css directory.
    Passing a true value as the second argument will cause the only the path to
    be returned instead of a `url()` function
    """
    filepath = StringValue(path).value
    if callable(config.STATIC_ROOT):
        try:
            _file, _storage = list(config.STATIC_ROOT(filepath))[0]
            d_obj = _storage.modified_time(_file)
            filetime = int(time.mktime(d_obj.timetuple()))
        except:
            filetime = 'NA'
    else:
        _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
        if os.path.exists(_path):
            filetime = int(os.path.getmtime(_path))
        else:
            filetime = 'NA'
    BASE_URL = config.STATIC_URL

    url = '%s%s' % (BASE_URL, filepath)
    if cache_buster:
        url = add_cache_buster(url, filetime)
    if not only_path:
        url = 'url("%s")' % (url)
    return StringValue(url)
コード例 #5
0
def _font_url(path, only_path=False, cache_buster=True, inline=False):
    filepath = StringValue(path).value
    path = None
    if callable(config.STATIC_ROOT):
        try:
            _file, _storage = list(config.STATIC_ROOT(filepath))[0]
            d_obj = _storage.modified_time(_file)
            filetime = int(time.mktime(d_obj.timetuple()))
            if inline:
                path = _storage.open(_file)
        except:
            filetime = 'NA'
    else:
        _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
        if os.path.exists(_path):
            filetime = int(os.path.getmtime(_path))
            if inline:
                path = open(_path, 'rb')
        else:
            filetime = 'NA'
    BASE_URL = config.STATIC_URL

    if path and inline:
        mime_type = mimetypes.guess_type(filepath)[0]
        url = 'data:' + mime_type + ';base64,' + base64.b64encode(path.read())
    else:
        url = '%s%s' % (BASE_URL, filepath)
        if cache_buster:
            url = add_cache_buster(url, filetime)

    if not only_path:
        url = 'url("%s")' % escape(url)
    return StringValue(url)
コード例 #6
0
ファイル: images.py プロジェクト: magical/pyScss
def image_height(image):
    """
    Returns the height of the image found at the path supplied by `image`
    relative to your project's images directory.
    """
    if not Image:
        raise Exception("Images manipulation require PIL")
    filepath = StringValue(image).value
    path = None
    try:
        height = _image_size_cache[filepath][1]
    except KeyError:
        height = 0
        if callable(config.STATIC_ROOT):
            try:
                _file, _storage = list(config.STATIC_ROOT(filepath))[0]
                path = _storage.open(_file)
            except:
                pass
        else:
            _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
            if os.path.exists(_path):
                path = open(_path, 'rb')
        if path:
            image = Image.open(path)
            size = image.size
            height = size[1]
            _image_size_cache[filepath] = size
    return NumberValue(height, 'px')
コード例 #7
0
ファイル: images.py プロジェクト: magical/pyScss
def _image_url(path, only_path=False, cache_buster=True, dst_color=None, src_color=None, inline=False, mime_type=None, spacing=None, collapse_x=None, collapse_y=None):
    """
    src_color - a list of or a single color to be replaced by each corresponding dst_color colors
    spacing - spaces to be added to the image
    collapse_x, collapse_y - collapsable (layered) image of the given size (x, y)
    """
    if inline or dst_color or spacing:
        if not Image:
            raise Exception("Images manipulation require PIL")
    filepath = StringValue(path).value
    mime_type = inline and (StringValue(mime_type).value or mimetypes.guess_type(filepath)[0])
    path = None
    if callable(config.STATIC_ROOT):
        try:
            _file, _storage = list(config.STATIC_ROOT(filepath))[0]
            d_obj = _storage.modified_time(_file)
            filetime = int(time.mktime(d_obj.timetuple()))
            if inline or dst_color or spacing:
                path = _storage.open(_file)
        except:
            filetime = 'NA'
    else:
        _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
        if os.path.exists(_path):
            filetime = int(os.path.getmtime(_path))
            if inline or dst_color or spacing:
                path = open(_path, 'rb')
        else:
            filetime = 'NA'
    BASE_URL = config.STATIC_URL
    if path:
        dst_colors = [list(ColorValue(v).value[:3]) for v in List.from_maybe(dst_color) if v]

        src_colors = src_color
        src_colors = [tuple(ColorValue(v).value[:3]) if v else (0, 0, 0) for v in List.from_maybe(src_color)]

        len_colors = max(len(dst_colors), len(src_colors))
        dst_colors = (dst_colors * len_colors)[:len_colors]
        src_colors = (src_colors * len_colors)[:len_colors]

        spacing = [int(NumberValue(v).value) if v else 0 for v in List.from_maybe(spacing)]
        spacing = (spacing * 4)[:4]

        file_name, file_ext = os.path.splitext(os.path.normpath(filepath).replace('\\', '_').replace('/', '_'))
        key = (filetime, src_color, dst_color, spacing)
        key = file_name + '-' + base64.urlsafe_b64encode(hashlib.md5(repr(key)).digest()).rstrip('=').replace('-', '_')
        asset_file = key + file_ext
        ASSETS_ROOT = config.ASSETS_ROOT or os.path.join(config.STATIC_ROOT, 'assets')
        asset_path = os.path.join(ASSETS_ROOT, asset_file)

        if os.path.exists(asset_path):
            filepath = asset_file
            BASE_URL = config.ASSETS_URL
            if inline:
                path = open(asset_path, 'rb')
                url = 'data:' + mime_type + ';base64,' + base64.b64encode(path.read())
            else:
                url = '%s%s' % (BASE_URL, filepath)
                if cache_buster:
                    filetime = int(os.path.getmtime(asset_path))
                    url = add_cache_buster(url, filetime)
        else:
            image = Image.open(path)
            width, height = collapse_x or image.size[0], collapse_y or image.size[1]
            new_image = Image.new(
                mode='RGBA',
                size=(width + spacing[1] + spacing[3], height + spacing[0] + spacing[2]),
                color=(0, 0, 0, 0)
            )
            for i, dst_color in enumerate(dst_colors):
                src_color = src_colors[i]
                pixdata = image.load()
                for _y in xrange(image.size[1]):
                    for _x in xrange(image.size[0]):
                        pixel = pixdata[_x, _y]
                        if pixel[:3] == src_color:
                            pixdata[_x, _y] = tuple([int(c) for c in dst_color] + [pixel[3] if len(pixel) == 4 else 255])
            iwidth, iheight = image.size
            if iwidth != width or iheight != height:
                cy = 0
                while cy < iheight:
                    cx = 0
                    while cx < iwidth:
                        cropped_image = image.crop((cx, cy, cx + width, cy + height))
                        new_image.paste(cropped_image, (int(spacing[3]), int(spacing[0])), cropped_image)
                        cx += width
                    cy += height
            else:
                new_image.paste(image, (int(spacing[3]), int(spacing[0])))

            if not inline:
                try:
                    new_image.save(asset_path)
                    filepath = asset_file
                    BASE_URL = config.ASSETS_URL
                    if cache_buster:
                        filetime = int(os.path.getmtime(asset_path))
                except IOError:
                    log.exception("Error while saving image")
                    inline = True  # Retry inline version
                url = '%s%s' % (config.ASSETS_URL, asset_file)
                if cache_buster:
                    url = add_cache_buster(url, filetime)
            if inline:
                output = six.BytesIO()
                new_image.save(output, format='PNG')
                contents = output.getvalue()
                output.close()
                url = 'data:' + mime_type + ';base64,' + base64.b64encode(contents)
    else:
        url = '%s%s' % (BASE_URL, filepath)
        if cache_buster:
            url = add_cache_buster(url, filetime)

    if not only_path:
        url = 'url("%s")' % escape(url)
    return StringValue(url)
コード例 #8
0
ファイル: images.py プロジェクト: magical/pyScss
def _image_url(path,
               only_path=False,
               cache_buster=True,
               dst_color=None,
               src_color=None,
               inline=False,
               mime_type=None,
               spacing=None,
               collapse_x=None,
               collapse_y=None):
    """
    src_color - a list of or a single color to be replaced by each corresponding dst_color colors
    spacing - spaces to be added to the image
    collapse_x, collapse_y - collapsable (layered) image of the given size (x, y)
    """
    if inline or dst_color or spacing:
        if not Image:
            raise Exception("Images manipulation require PIL")
    filepath = StringValue(path).value
    mime_type = inline and (StringValue(mime_type).value
                            or mimetypes.guess_type(filepath)[0])
    path = None
    if callable(config.STATIC_ROOT):
        try:
            _file, _storage = list(config.STATIC_ROOT(filepath))[0]
            d_obj = _storage.modified_time(_file)
            filetime = int(time.mktime(d_obj.timetuple()))
            if inline or dst_color or spacing:
                path = _storage.open(_file)
        except:
            filetime = 'NA'
    else:
        _path = os.path.join(config.STATIC_ROOT, filepath.strip('/'))
        if os.path.exists(_path):
            filetime = int(os.path.getmtime(_path))
            if inline or dst_color or spacing:
                path = open(_path, 'rb')
        else:
            filetime = 'NA'
    BASE_URL = config.STATIC_URL
    if path:
        dst_colors = [
            list(ColorValue(v).value[:3]) for v in List.from_maybe(dst_color)
            if v
        ]

        src_colors = src_color
        src_colors = [
            tuple(ColorValue(v).value[:3]) if v else (0, 0, 0)
            for v in List.from_maybe(src_color)
        ]

        len_colors = max(len(dst_colors), len(src_colors))
        dst_colors = (dst_colors * len_colors)[:len_colors]
        src_colors = (src_colors * len_colors)[:len_colors]

        spacing = [
            int(NumberValue(v).value) if v else 0
            for v in List.from_maybe(spacing)
        ]
        spacing = (spacing * 4)[:4]

        file_name, file_ext = os.path.splitext(
            os.path.normpath(filepath).replace('\\', '_').replace('/', '_'))
        key = (filetime, src_color, dst_color, spacing)
        key = file_name + '-' + base64.urlsafe_b64encode(
            hashlib.md5(repr(key)).digest()).rstrip('=').replace('-', '_')
        asset_file = key + file_ext
        ASSETS_ROOT = config.ASSETS_ROOT or os.path.join(
            config.STATIC_ROOT, 'assets')
        asset_path = os.path.join(ASSETS_ROOT, asset_file)

        if os.path.exists(asset_path):
            filepath = asset_file
            BASE_URL = config.ASSETS_URL
            if inline:
                path = open(asset_path, 'rb')
                url = 'data:' + mime_type + ';base64,' + base64.b64encode(
                    path.read())
            else:
                url = '%s%s' % (BASE_URL, filepath)
                if cache_buster:
                    filetime = int(os.path.getmtime(asset_path))
                    url = add_cache_buster(url, filetime)
        else:
            image = Image.open(path)
            width, height = collapse_x or image.size[
                0], collapse_y or image.size[1]
            new_image = Image.new(mode='RGBA',
                                  size=(width + spacing[1] + spacing[3],
                                        height + spacing[0] + spacing[2]),
                                  color=(0, 0, 0, 0))
            for i, dst_color in enumerate(dst_colors):
                src_color = src_colors[i]
                pixdata = image.load()
                for _y in xrange(image.size[1]):
                    for _x in xrange(image.size[0]):
                        pixel = pixdata[_x, _y]
                        if pixel[:3] == src_color:
                            pixdata[_x, _y] = tuple(
                                [int(c) for c in dst_color] +
                                [pixel[3] if len(pixel) == 4 else 255])
            iwidth, iheight = image.size
            if iwidth != width or iheight != height:
                cy = 0
                while cy < iheight:
                    cx = 0
                    while cx < iwidth:
                        cropped_image = image.crop(
                            (cx, cy, cx + width, cy + height))
                        new_image.paste(cropped_image,
                                        (int(spacing[3]), int(spacing[0])),
                                        cropped_image)
                        cx += width
                    cy += height
            else:
                new_image.paste(image, (int(spacing[3]), int(spacing[0])))

            if not inline:
                try:
                    new_image.save(asset_path)
                    filepath = asset_file
                    BASE_URL = config.ASSETS_URL
                    if cache_buster:
                        filetime = int(os.path.getmtime(asset_path))
                except IOError:
                    log.exception("Error while saving image")
                    inline = True  # Retry inline version
                url = '%s%s' % (config.ASSETS_URL, asset_file)
                if cache_buster:
                    url = add_cache_buster(url, filetime)
            if inline:
                output = six.BytesIO()
                new_image.save(output, format='PNG')
                contents = output.getvalue()
                output.close()
                url = 'data:' + mime_type + ';base64,' + base64.b64encode(
                    contents)
    else:
        url = '%s%s' % (BASE_URL, filepath)
        if cache_buster:
            url = add_cache_buster(url, filetime)

    if not only_path:
        url = 'url("%s")' % escape(url)
    return StringValue(url)