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| import os | |
| import gradio as gr | |
| from PIL import Image, ImageDraw, ImageFont | |
| import base64 | |
| import io | |
| # --- Image Generation Logic --- | |
| def draw_horizontal_lines(draw, width, height, spacing=60, color=(230, 230, 230)): | |
| """Draws horizontal lines on the image.""" | |
| for y in range(0, height, spacing): | |
| draw.line([(0, y), (width, y)], fill=color, width=2) | |
| def draw_dot_grid(draw, width, height, spacing=50, color=(220, 220, 220)): | |
| """Draws a dot grid on the image.""" | |
| for x in range(0, width, spacing): | |
| for y in range(0, height, spacing): | |
| draw.ellipse([(x-2, y-2), (x+2, y+2)], fill=color) | |
| def draw_lattice_grid(draw, width, height, spacing=100, color=(235, 235, 235)): | |
| """Draws a lattice/graph paper grid on the image.""" | |
| for x in range(0, width, spacing): | |
| draw.line([(x, 0), (x, height)], fill=color, width=2) | |
| for y in range(0, height, spacing): | |
| draw.line([(0, y), (width, y)], fill=color, width=2) | |
| def text_to_images_and_base64_generator(text_content, style, font_size, bg_color_name, aspect_ratio_str, font_choice): | |
| """ | |
| Converts text into images, returning both PIL objects for UI preview | |
| and base64 strings for an API/MCP client, with customizable options. | |
| Args: | |
| text_content (str): The text to be converted. | |
| style (str): The background style ('plain', 'lines', 'dots', 'grid'). | |
| font_size (int): The font size for the text. | |
| bg_color_name (str): The name of the background color. | |
| aspect_ratio_str (str): The string representing the desired aspect ratio. | |
| font_choice (str): The name of the font family to use. | |
| Returns: | |
| tuple: A tuple containing (list of PIL.Image.Image, list of base64 strings). | |
| """ | |
| if not text_content or not text_content.strip(): | |
| gr.Warning("Input text is empty. Please enter some text to generate images.") | |
| return [], [] | |
| # --- Aspect Ratio, Color, and Font Mapping --- | |
| aspect_ratio_map = { | |
| "1:1 (Square)": (1080, 1080), | |
| "16:9 (Widescreen)": (1080, 608), | |
| "9:16 (Vertical)": (1080, 1920), | |
| "3:4 (Standard)": (1080, 1440), | |
| "4:3 (Standard)": (1080, 810) | |
| } | |
| color_map = { | |
| "White": (255, 255, 255), | |
| "Light Gray": (240, 240, 240), | |
| "Beige": (245, 245, 220), | |
| "Pale Blue": (220, 230, 245) | |
| } | |
| font_map = { | |
| "Arial": ["arial.ttf", "Arial.ttf"], | |
| "Times New Roman": ["times.ttf", "Times New Roman.ttf"], | |
| "Courier New": ["cour.ttf", "Courier New.ttf"], | |
| "Verdana": ["verdana.ttf", "Verdana.ttf"], | |
| "Georgia": ["georgia.ttf", "Georgia.ttf"], | |
| "DejaVu Sans": ["DejaVuSans.ttf"] # Good fallback | |
| } | |
| IMG_WIDTH, IMG_HEIGHT = aspect_ratio_map.get(aspect_ratio_str, (1080, 1080)) | |
| BACKGROUND_COLOR = color_map.get(bg_color_name, (255, 255, 255)) | |
| # --- Configuration --- | |
| TEXT_COLOR = (10, 10, 10) | |
| STYLE_COLOR = (225, 225, 225) | |
| PADDING_X = 80 | |
| PADDING_Y = 80 | |
| LINE_SPACING = 20 | |
| # --- Font Loading --- | |
| font = None | |
| selected_font_files = font_map.get(font_choice, []) | |
| font_paths_to_try = selected_font_files + [ | |
| "Arial.ttf", "arial.ttf", "DejaVuSans.ttf", | |
| "/System/Library/Fonts/Supplemental/Arial.ttf", | |
| "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf", | |
| "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf" | |
| ] | |
| for f_path in font_paths_to_try: | |
| try: | |
| font = ImageFont.truetype(f_path, font_size) | |
| break | |
| except IOError: | |
| continue | |
| if not font: | |
| font = ImageFont.load_default() | |
| gr.Warning(f"Could not find '{font_choice}' or fallback fonts. Using default.") | |
| # --- Text Wrapping --- | |
| drawable_width = IMG_WIDTH - 2 * PADDING_X | |
| paragraphs = [p.strip() for p in text_content.strip().split('\n') if p.strip()] | |
| all_lines_and_breaks = [] | |
| for i, paragraph in enumerate(paragraphs): | |
| words = paragraph.split() | |
| current_line = "" | |
| for word in words: | |
| if font.getlength(word) > drawable_width: | |
| temp_word = "" | |
| for char in word: | |
| if font.getlength(temp_word + char) > drawable_width: | |
| all_lines_and_breaks.append(temp_word) | |
| temp_word = char | |
| else: | |
| temp_word += char | |
| word = temp_word | |
| if font.getlength(current_line + " " + word) <= drawable_width: | |
| current_line += " " + word | |
| else: | |
| all_lines_and_breaks.append(current_line.strip()) | |
| current_line = word | |
| all_lines_and_breaks.append(current_line.strip()) | |
| if i < len(paragraphs) - 1: | |
| all_lines_and_breaks.append(None) | |
| # --- Image Generation & Encoding --- | |
| generated_images = [] | |
| generated_base64_list = [] | |
| page_content = [] | |
| y_text = PADDING_Y | |
| try: | |
| line_height = font.getbbox("A")[3] - font.getbbox("A")[1] | |
| except AttributeError: | |
| bbox = font.getmask("A").getbbox() | |
| line_height = bbox[3] - bbox[1] if bbox else 12 | |
| PARAGRAPH_SPACING = line_height | |
| def create_and_encode_page(content): | |
| """Helper to create a PIL image, draw text, and encode to base64.""" | |
| img = Image.new('RGB', (IMG_WIDTH, IMG_HEIGHT), color=BACKGROUND_COLOR) | |
| draw = ImageDraw.Draw(img) | |
| if style == 'lines': | |
| line_style_spacing = line_height + LINE_SPACING | |
| draw_horizontal_lines(draw, IMG_WIDTH, IMG_HEIGHT, spacing=int(line_style_spacing), color=STYLE_COLOR) | |
| elif style == 'dots': | |
| draw_dot_grid(draw, IMG_WIDTH, IMG_HEIGHT, color=STYLE_COLOR) | |
| elif style == 'grid': | |
| draw_lattice_grid(draw, IMG_WIDTH, IMG_HEIGHT, color=STYLE_COLOR) | |
| current_y = PADDING_Y | |
| for page_item in content: | |
| if page_item is not None: | |
| draw.text((PADDING_X, current_y), page_item, font=font, fill=TEXT_COLOR) | |
| current_y += line_height + LINE_SPACING | |
| else: | |
| current_y += PARAGRAPH_SPACING | |
| generated_images.append(img) | |
| buffered = io.BytesIO() | |
| img.save(buffered, format="PNG") | |
| img_base64 = base64.b64encode(buffered.getvalue()).decode("utf-8") | |
| generated_base64_list.append(img_base64) | |
| # --- Page Creation Loop --- | |
| for item in all_lines_and_breaks: | |
| is_break = item is None | |
| item_height = PARAGRAPH_SPACING if is_break else line_height | |
| if y_text + item_height > IMG_HEIGHT - PADDING_Y: | |
| create_and_encode_page(page_content) | |
| page_content = [item] | |
| y_text = PADDING_Y + item_height + (0 if is_break else LINE_SPACING) | |
| else: | |
| page_content.append(item) | |
| y_text += item_height + (0 if is_break else LINE_SPACING) | |
| if page_content: | |
| create_and_encode_page(page_content) | |
| return generated_images, generated_base64_list | |
| # --- Gradio Interface --- | |
| example_text = """In the heart of a bustling city, there lived a clockmaker named Alistair. His shop, a quaint corner of tranquility amidst the urban chaos, was filled with the gentle ticking of countless timepieces. Each clock was a masterpiece, a testament to his dedication and skill. | |
| One day, a young girl with eyes as curious as a cat's wandered into his shop. She wasn't interested in the shiny new watches but was drawn to the grandfather clock in the corner. "What's its story?" she asked, her voice soft. Alistair smiled, for he knew he had found the next guardian of the stories. The legacy of the whispering clock would live on.""" | |
| demo = gr.Interface( | |
| fn=text_to_images_and_base64_generator, | |
| inputs=[ | |
| gr.Textbox(lines=10, label="Text Content", placeholder="Paste your long-form text here...", value=example_text), | |
| gr.Radio(['lines', 'dots', 'grid', 'plain'], label="Background Style", value='lines'), | |
| gr.Slider(24, 72, value=48, step=2, label="Font Size"), | |
| gr.Radio(["White", "Light Gray", "Beige", "Pale Blue"], label="Background Color", value="White"), | |
| gr.Radio(["1:1 (Square)", "16:9 (Widescreen)", "9:16 (Vertical)", "4:3 (Standard)"], label="Aspect Ratio", value="1:1 (Square)"), | |
| gr.Dropdown(["Arial", "Times New Roman", "Courier New", "Verdana", "Georgia", "DejaVu Sans"], label="Font Family", value="Arial") | |
| ], | |
| outputs=[ | |
| gr.Gallery(label="Generated Images (Preview)", show_label=True, preview=True), | |
| gr.JSON(label="API Output (Base64 Strings)") | |
| ], | |
| title="Text-to-Image Server", | |
| description="Transforms long-form text into images. A gallery is shown for UI preview, and a JSON list of base64 strings is returned for API/MCP clients.", | |
| allow_flagging="never" | |
| ) | |
| # --- Main Execution --- | |
| if __name__ == "__main__": | |
| demo.launch(mcp_server=True) | |