80 lines
3.1 KiB
Python
80 lines
3.1 KiB
Python
from DesignEntity import DesignEntity
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from PIL import ImageFont, ImageDraw, ImageOps
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from Assets import path, defaultfont, colors, defaultfontsize
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from TextWraper import wrap_text_with_font
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truncateerror_fontsize = 0.5
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class TextDesign (DesignEntity):
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"""Object that manages all information relevant to text
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and prints it to an image"""
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def __init__(self, size, color=colors["fg"], background_color=colors["bg"], font=None, fontsize=defaultfontsize, text="", horizontalalignment="left", verticalalignment="top", mask=True, truncate=False, truncate_suffix='...', wrap=False):
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super(TextDesign, self).__init__(size, mask=mask)
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if font is None:
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font = defaultfont
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self.font_family = font
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self.font_size = fontsize
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self.text = text
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self.horizontal_alignment = horizontalalignment
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self.vertical_alignment = verticalalignment
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self.truncate = truncate
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self.truncate_suffix = truncate_suffix
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self.wrap = wrap
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self.color = color
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self.background_color = background_color
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def __finish_image__(self):
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if self.color is "white":
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self.invert_mask = True
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if self.background_color not in ["white", "black"] or self.color in ["red"]:
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self.color_key = True
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self.__init_image__(self.background_color)
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self.__font__ = self.__get_font__()
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if self.wrap is False and self.truncate:
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self.__truncate_text__()
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if self.wrap:
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self.__wrap_text__()
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pos = self.__pos_from_alignment__()
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ImageDraw.Draw(self.__image__).text(
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pos, self.text, fill=self.color, font=self.__font__)
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def __truncate_text__(self):
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# does not need truncating
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if self.__font__.getsize_multiline(self.text)[0] <= self.size[0]:
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return
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suffix_length = self.__font__.getsize_multiline(
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self.truncate_suffix)[0]
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while len(self.text) > 1 and self.__font__.getsize_multiline(self.text)[0] + suffix_length >= self.size[0]:
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self.text = self.text[0:-1]
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self.text = self.text.rstrip(' ')
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self.text += self.truncate_suffix
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def __pos_from_alignment__(self):
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width, height = self.__get_text_size__()
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x, y = 0, 0
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if self.vertical_alignment == "center":
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y = int((self.size[1] / 2) - (height / 2))
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elif self.vertical_alignment == "bottom":
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y = int(self.size[1] - height)
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if self.horizontal_alignment == "center":
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x = int((self.size[0] / 2) - (width / 2))
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elif self.horizontal_alignment == "right":
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x = int(self.size[0] - width)
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return (x, y)
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def __get_text_size__(self):
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widht = self.__font__.getsize_multiline(self.text)[0]
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height = (self.text.count('\n') + 1) * self.__font__.font.height
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return widht, height
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def __wrap_text__(self):
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self.text = wrap_text_with_font(self.text, self.size[0], self.__font__)
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def __get_font__(self):
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return ImageFont.truetype(path + self.font_family, int(self.font_size))
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