From 2272878b2cd7cee402ea22b0fecf89bf7692d89a Mon Sep 17 00:00:00 2001 From: navanchauhan Date: Fri, 30 Dec 2022 18:57:48 -0500 Subject: lib to write text on imgs --- helper_libs/image_utils.py | 125 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 helper_libs/image_utils.py diff --git a/helper_libs/image_utils.py b/helper_libs/image_utils.py new file mode 100644 index 0000000..70eaebb --- /dev/null +++ b/helper_libs/image_utils.py @@ -0,0 +1,125 @@ +#!/usr/bin/env python +# coding: utf-8 + +# Copyright 2011 Álvaro Justen [alvarojusten at gmail dot com] +# License: GPL + +from PIL import Image, ImageDraw, ImageFont + +class ImageText(object): + def __init__(self, filename_or_size, mode='RGBA', background=(0, 0, 0, 0), + encoding='utf8'): + if isinstance(filename_or_size, str): + self.filename = filename_or_size + self.image = Image.open(self.filename) + self.size = self.image.size + elif isinstance(filename_or_size, (list, tuple)): + self.size = filename_or_size + self.image = Image.new(mode, self.size, color=background) + self.filename = None + self.draw = ImageDraw.Draw(self.image) + self.encoding = encoding + + def line(self, shape, fill): + self.draw.line(shape,fill=fill, width=10) + + def save(self, filename=None): + self.image.save(filename or self.filename) + + def get_font_size(self, text, font, max_width=None, max_height=None): + if max_width is None and max_height is None: + raise ValueError('You need to pass max_width or max_height') + font_size = 1 + text_size = self.get_text_size(font, font_size, text) + if (max_width is not None and text_size[0] > max_width) or \ + (max_height is not None and text_size[1] > max_height): + raise ValueError("Text can't be filled in only (%dpx, %dpx)" % \ + text_size) + while True: + if (max_width is not None and text_size[0] >= max_width) or \ + (max_height is not None and text_size[1] >= max_height): + return font_size - 1 + font_size += 1 + text_size = self.get_text_size(font, font_size, text) + + def write_text(self, coords, text, font_filename, font_size=11, + color=(0, 0, 0), max_width=None, max_height=None): + if isinstance(text, str): + x,y = coords + text = text#.decode(self.encoding) + if font_size == 'fill' and \ + (max_width is not None or max_height is not None): + font_size = self.get_font_size(text, font_filename, max_width, + max_height) + text_size = self.get_text_size(font_filename, font_size, text) + font = ImageFont.truetype(font_filename, font_size) + if x == 'center': + x = (self.size[0] - text_size[0]) / 2 + if y == 'center': + y = (self.size[1] - text_size[1]) / 2 + self.draw.text((x, y), text, font=font, fill=color) + return text_size + + def get_text_size(self, font_filename, font_size, text): + font = ImageFont.truetype(font_filename, font_size) + return font.getsize(text) + + def write_text_box(self, coords, text, box_width, font_filename, + font_size=11, color=(0, 0, 0), place='left', + justify_last_line=False): + x,y = coords + lines = [] + line = [] + words = text.split() + for word in words: + new_line = ' '.join(line + [word]) + size = self.get_text_size(font_filename, font_size, new_line) + text_height = size[1] + if size[0] <= box_width: + line.append(word) + else: + lines.append(line) + line = [word] + if line: + lines.append(line) + lines = [' '.join(line) for line in lines if line] + height = y + for index, line in enumerate(lines): + height += text_height + if place == 'left': + self.write_text((x, height), line, font_filename, font_size, + color) + elif place == 'right': + total_size = self.get_text_size(font_filename, font_size, line) + x_left = x + box_width - total_size[0] + self.write_text((x_left, height), line, font_filename, + font_size, color) + elif place == 'center': + total_size = self.get_text_size(font_filename, font_size, line) + x_left = int(x + ((box_width - total_size[0]) / 2)) + self.write_text((x_left, height), line, font_filename, + font_size, color) + elif place == 'justify': + words = line.split() + if (index == len(lines) - 1 and not justify_last_line) or \ + len(words) == 1: + self.write_text((x, height), line, font_filename, font_size, + color) + continue + line_without_spaces = ''.join(words) + total_size = self.get_text_size(font_filename, font_size, + line_without_spaces) + space_width = (box_width - total_size[0]) / (len(words) - 1.0) + start_x = x + for word in words[:-1]: + self.write_text((start_x, height), word, font_filename, + font_size, color) + word_size = self.get_text_size(font_filename, font_size, + word) + start_x += word_size[0] + space_width + last_word_size = self.get_text_size(font_filename, font_size, + words[-1]) + last_word_x = x + box_width - last_word_size[0] + self.write_text((last_word_x, height), words[-1], font_filename, + font_size, color) + return (box_width, height - y) \ No newline at end of file -- cgit v1.2.3