SillyBubble/image.php

<?php
/**
 * SillyBubble Image Generator
 * 
 * This script generates chat bubble images from text.
 * It takes a 'q' parameter for the text content and an optional 'style' parameter.
 * 
 * Usage:
 * image.php?q=Hello+World
 * image.php?q=Hello+World&style=modern
 */

// Set content type to PNG image
header('Content-Type: image/png');

// Get parameters
$text = isset($_GET['q']) ? urldecode($_GET['q']) : 'No text provided';
$style = isset($_GET['style']) ? $_GET['style'] : 'default';

// Define styles
$styles = [
    'default' => [
        'bg_color' => [245, 245, 245],
        'text_color' => [50, 50, 50],
        'border_color' => [200, 200, 200],
        'padding' => 20,
        'rounded' => 15,
        'font_size' => 14,
        'max_width' => 600,
        'line_height' => 20,
        'font' => __DIR__ . '/fonts/arial.ttf', // Adjust path as needed
    ],
    'modern' => [
        'bg_color' => [66, 133, 244],
        'text_color' => [255, 255, 255],
        'border_color' => [59, 120, 220],
        'padding' => 20,
        'rounded' => 20,
        'font_size' => 14,
        'max_width' => 600,
        'line_height' => 20,
        'font' => __DIR__ . '/fonts/arial.ttf', // Adjust path as needed
    ],
    'retro' => [
        'bg_color' => [255, 204, 102],
        'text_color' => [51, 51, 51],
        'border_color' => [204, 153, 0],
        'padding' => 20,
        'rounded' => 5,
        'font_size' => 14,
        'max_width' => 600,
        'line_height' => 20,
        'font' => __DIR__ . '/fonts/arial.ttf', // Adjust path as needed
    ],
    'minimal' => [
        'bg_color' => [255, 255, 255],
        'text_color' => [0, 0, 0],
        'border_color' => [220, 220, 220],
        'padding' => 15,
        'rounded' => 0,
        'font_size' => 14,
        'max_width' => 600,
        'line_height' => 20,
        'font' => __DIR__ . '/fonts/arial.ttf', // Adjust path as needed
    ],
];

// Use default style if specified style doesn't exist
if (!isset($styles[$style])) {
    $style = 'default';
}

// Get style settings
$config = $styles[$style];

// Check for fonts directory and create if it doesn't exist
$fontsDir = __DIR__ . '/fonts';
if (!is_dir($fontsDir)) {
    mkdir($fontsDir, 0755, true);
}

// Fallback to a built-in font if the specified font file doesn't exist
if (!file_exists($config['font'])) {
    // Try to find any TTF font in the fonts directory
    $foundFont = false;
    if (is_dir($fontsDir)) {
        $fontFiles = glob($fontsDir . '/*.ttf');
        if (!empty($fontFiles)) {
            $config['font'] = $fontFiles[0];
            $foundFont = true;
        }
    }
    
    // If no TTF font found, use built-in font
    if (!$foundFont) {
        $config['use_builtin_font'] = true;
    }
}

// Create a temporary image to calculate text dimensions
$tempImage = imagecreatetruecolor(100, 100);
$textColor = imagecolorallocate($tempImage, $config['text_color'][0], $config['text_color'][1], $config['text_color'][2]);

// Word wrap the text
$words = explode(' ', $text);
$lines = [];
$currentLine = '';
$maxWidth = $config['max_width'] - (2 * $config['padding']);

foreach ($words as $word) {
    $testLine = $currentLine . ' ' . $word;
    $testLine = ltrim($testLine); // Remove leading space
    
    // Calculate width using built-in or TTF font
    if (isset($config['use_builtin_font'])) {
        $textWidth = imagefontwidth(5) * strlen($testLine);
    } else {
        $bbox = imagettfbbox($config['font_size'], 0, $config['font'], $testLine);
        $textWidth = $bbox[2] - $bbox[0];
    }
    
    if ($textWidth > $maxWidth && $currentLine !== '') {
        $lines[] = $currentLine;
        $currentLine = $word;
    } else {
        $currentLine = $testLine;
    }
}
if ($currentLine !== '') {
    $lines[] = $currentLine;
}

// Calculate image dimensions
$lineCount = count($lines);
if (isset($config['use_builtin_font'])) {
    $lineHeight = imagefontheight(5);
    $textHeight = $lineHeight * $lineCount;
    
    // Find the longest line to determine width
    $textWidth = 0;
    foreach ($lines as $line) {
        $lineWidth = imagefontwidth(5) * strlen($line);
        $textWidth = max($textWidth, $lineWidth);
    }
} else {
    $lineHeight = $config['line_height'];
    $textHeight = $lineHeight * $lineCount;
    
    // Find the longest line to determine width
    $textWidth = 0;
    foreach ($lines as $line) {
        $bbox = imagettfbbox($config['font_size'], 0, $config['font'], $line);
        $lineWidth = $bbox[2] - $bbox[0];
        $textWidth = max($textWidth, $lineWidth);
    }
}

// Add padding to dimensions
$imgWidth = min($config['max_width'], $textWidth + (2 * $config['padding']));
$imgHeight = $textHeight + (2 * $config['padding']);

// Create the bubble image
$image = imagecreatetruecolor($imgWidth, $imgHeight);

// Allocate colors
$bgColor = imagecolorallocate($image, $config['bg_color'][0], $config['bg_color'][1], $config['bg_color'][2]);
$borderColor = imagecolorallocate($image, $config['border_color'][0], $config['border_color'][1], $config['border_color'][2]);
$textColor = imagecolorallocate($image, $config['text_color'][0], $config['text_color'][1], $config['text_color'][2]);

// Fill background
imagefill($image, 0, 0, $bgColor);

// Draw rounded rectangle (if rounded corners are requested)
if ($config['rounded'] > 0) {
    // Draw filled rectangle
    imagefilledrectangle($image, 0, 0, $imgWidth - 1, $imgHeight - 1, $bgColor);
    
    // Draw rounded corners - basic simulation for rounded corners
    // This could be improved with proper arc drawing
    $r = $config['rounded'];
    
    // Top left corner
    imagefilledarc($image, $r, $r, $r * 2, $r * 2, 180, 270, $bgColor, IMG_ARC_PIE);
    
    // Top right corner
    imagefilledarc($image, $imgWidth - $r - 1, $r, $r * 2, $r * 2, 270, 360, $bgColor, IMG_ARC_PIE);
    
    // Bottom left corner
    imagefilledarc($image, $r, $imgHeight - $r - 1, $r * 2, $r * 2, 90, 180, $bgColor, IMG_ARC_PIE);
    
    // Bottom right corner
    imagefilledarc($image, $imgWidth - $r - 1, $imgHeight - $r - 1, $r * 2, $r * 2, 0, 90, $bgColor, IMG_ARC_PIE);
    
    // Draw border
    imagerectangle($image, 0, 0, $imgWidth - 1, $imgHeight - 1, $borderColor);
} else {
    // Draw simple rectangle
    imagefilledrectangle($image, 0, 0, $imgWidth - 1, $imgHeight - 1, $bgColor);
    imagerectangle($image, 0, 0, $imgWidth - 1, $imgHeight - 1, $borderColor);
}

// Draw text
$y = $config['padding'];
foreach ($lines as $line) {
    if (isset($config['use_builtin_font'])) {
        // Use built-in font (less nice but always available)
        imagestring($image, 5, $config['padding'], $y, $line, $textColor);
        $y += imagefontheight(5);
    } else {
        // Use TrueType font (nicer but requires font file)
        imagettftext($image, $config['font_size'], 0, $config['padding'], $y + $config['font_size'], $textColor, $config['font'], $line);
        $y += $lineHeight;
    }
}

// Output the image
imagepng($image);

// Clean up
imagedestroy($image);
imagedestroy($tempImage);