public function WatermarkText(&$gdimg, $text, $size, $alignment, $hex_color = '000000', $ttffont = '', $opacity = 100, $margin = 5, $angle = 0, $bg_color = false, $bg_opacity = 0, $fillextend = '') { // text watermark requested if (!$text) { return false; } ImageAlphaBlending($gdimg, true); if (preg_match('#^([0-9\\.\\-]*)x([0-9\\.\\-]*)(@[LCR])?$#i', $alignment, $matches)) { $originOffsetX = intval($matches[1]); $originOffsetY = intval($matches[2]); $alignment = @$matches[4] ? $matches[4] : 'L'; $margin = 0; } else { $originOffsetX = 0; $originOffsetY = 0; } $metaTextArray = array('^Fb' => $this->phpThumbObject->getimagesizeinfo['filesize'], '^Fk' => round($this->phpThumbObject->getimagesizeinfo['filesize'] / 1024), '^Fm' => round($this->phpThumbObject->getimagesizeinfo['filesize'] / 1048576), '^X' => $this->phpThumbObject->getimagesizeinfo[0], '^Y' => $this->phpThumbObject->getimagesizeinfo[1], '^x' => ImageSX($gdimg), '^y' => ImageSY($gdimg), '^^' => '^'); $text = strtr($text, $metaTextArray); $text = str_replace("\r\n", "\n", $text); $text = str_replace("\r", "\n", $text); $textlines = explode("\n", $text); $this->DebugMessage('Processing ' . count($textlines) . ' lines of text', __FILE__, __LINE__); if (@is_readable($ttffont) && is_file($ttffont)) { $opacity = 100 - intval(max(min($opacity, 100), 0)); $letter_color_text = phpthumb_functions::ImageHexColorAllocate($gdimg, $hex_color, false, $opacity * 1.27); $this->DebugMessage('Using TTF font "' . $ttffont . '"', __FILE__, __LINE__); $TTFbox = ImageTTFbBox($size, $angle, $ttffont, $text); $min_x = min($TTFbox[0], $TTFbox[2], $TTFbox[4], $TTFbox[6]); $max_x = max($TTFbox[0], $TTFbox[2], $TTFbox[4], $TTFbox[6]); //$text_width = round($max_x - $min_x + ($size * 0.5)); $text_width = round($max_x - $min_x); $min_y = min($TTFbox[1], $TTFbox[3], $TTFbox[5], $TTFbox[7]); $max_y = max($TTFbox[1], $TTFbox[3], $TTFbox[5], $TTFbox[7]); //$text_height = round($max_y - $min_y + ($size * 0.5)); $text_height = round($max_y - $min_y); $TTFboxChar = ImageTTFbBox($size, $angle, $ttffont, 'jH'); $char_min_y = min($TTFboxChar[1], $TTFboxChar[3], $TTFboxChar[5], $TTFboxChar[7]); $char_max_y = max($TTFboxChar[1], $TTFboxChar[3], $TTFboxChar[5], $TTFboxChar[7]); $char_height = round($char_max_y - $char_min_y); if ($alignment == '*') { $text_origin_y = $char_height + $margin; while ($text_origin_y - $text_height < ImageSY($gdimg)) { $text_origin_x = $margin; while ($text_origin_x < ImageSX($gdimg)) { ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y, $letter_color_text, $ttffont, $text); $text_origin_x += $text_width + $margin; } $text_origin_y += $text_height + $margin; } } else { // this block for background color only switch ($alignment) { case '*': // handled separately break; case 'T': $text_origin_x = $originOffsetX ? $originOffsetX - round($text_width / 2) : round((ImageSX($gdimg) - $text_width) / 2); $text_origin_y = $char_height + $margin + $originOffsetY; break; case 'B': $text_origin_x = $originOffsetX ? $originOffsetX - round($text_width / 2) : round((ImageSX($gdimg) - $text_width) / 2); $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin + $originOffsetY; break; case 'L': $text_origin_x = $margin + $originOffsetX; $text_origin_y = $originOffsetY ? $originOffsetY : round((ImageSY($gdimg) - $text_height) / 2) + $char_height; break; case 'R': $text_origin_x = $originOffsetX ? $originOffsetX - $text_width : ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin; $text_origin_y = $originOffsetY ? $originOffsetY : round((ImageSY($gdimg) - $text_height) / 2) + $char_height; break; case 'C': $text_origin_x = $originOffsetX ? $originOffsetX - round($text_width / 2) : round((ImageSX($gdimg) - $text_width) / 2); $text_origin_y = $originOffsetY ? $originOffsetY : round((ImageSY($gdimg) - $text_height) / 2) + $char_height; break; case 'TL': $text_origin_x = $margin + $originOffsetX; $text_origin_y = $char_height + $margin + $originOffsetY; break; case 'TR': $text_origin_x = $originOffsetX ? $originOffsetX - $text_width : ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin; $text_origin_y = $char_height + $margin + $originOffsetY; break; case 'BL': $text_origin_x = $margin + $originOffsetX; $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin + $originOffsetY; break; case 'BR': default: $text_origin_x = $originOffsetX ? $originOffsetX - $text_width : ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin; $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin + $originOffsetY; break; } //ImageRectangle($gdimg, $text_origin_x + $min_x, $text_origin_y + $TTFbox[1], $text_origin_x + $min_x + $text_width, $text_origin_y + $TTFbox[1] - $text_height, $letter_color_text); if (phpthumb_functions::IsHexColor($bg_color)) { $text_background_alpha = round(127 * ((100 - min(max(0, $bg_opacity), 100)) / 100)); $text_color_background = phpthumb_functions::ImageHexColorAllocate($gdimg, $bg_color, false, $text_background_alpha); } else { $text_color_background = phpthumb_functions::ImageHexColorAllocate($gdimg, 'FFFFFF', false, 127); } $x1 = $text_origin_x + $min_x; $y1 = $text_origin_y + $TTFbox[1]; $x2 = $text_origin_x + $min_x + $text_width; $y2 = $text_origin_y + $TTFbox[1] - $text_height; $x_TL = preg_match('#x#i', $fillextend) ? 0 : min($x1, $x2); $y_TL = preg_match('#y#i', $fillextend) ? 0 : min($y1, $y2); $x_BR = preg_match('#x#i', $fillextend) ? ImageSX($gdimg) : max($x1, $x2); $y_BR = preg_match('#y#i', $fillextend) ? ImageSY($gdimg) : max($y1, $y2); //while ($y_BR > ImageSY($gdimg)) { // $y_TL--; // $y_BR--; // $text_origin_y--; //} $this->DebugMessage('WatermarkText() calling ImageFilledRectangle($gdimg, ' . $x_TL . ', ' . $y_TL . ', ' . $x_BR . ', ' . $y_BR . ', $text_color_background)', __FILE__, __LINE__); ImageFilledRectangle($gdimg, $x_TL, $y_TL, $x_BR, $y_BR, $text_color_background); // end block for background color only $y_offset = 0; foreach ($textlines as $dummy => $line) { $TTFboxLine = ImageTTFbBox($size, $angle, $ttffont, $line); $min_x_line = min($TTFboxLine[0], $TTFboxLine[2], $TTFboxLine[4], $TTFboxLine[6]); $max_x_line = max($TTFboxLine[0], $TTFboxLine[2], $TTFboxLine[4], $TTFboxLine[6]); //$text_width = round($max_x - $min_x + ($size * 0.5)); $text_width_line = round($max_x_line - $min_x_line); $min_y_line = min($TTFboxLine[1], $TTFboxLine[3], $TTFboxLine[5], $TTFboxLine[7]); $max_y_line = max($TTFboxLine[1], $TTFboxLine[3], $TTFboxLine[5], $TTFboxLine[7]); //$text_height = round($max_y - $min_y + ($size * 0.5)); $text_height_line = round($max_y_line - $min_y_line); switch ($alignment) { // $text_origin_y set above, just re-set $text_origin_x here as needed case 'L': case 'TL': case 'BL': // no change neccesary break; case 'C': case 'T': case 'B': $text_origin_x = $originOffsetX ? $originOffsetX - round($text_width_line / 2) : round((ImageSX($gdimg) - $text_width_line) / 2); break; case 'R': case 'TR': case 'BR': $text_origin_x = $originOffsetX ? $originOffsetX - $text_width_line : ImageSX($gdimg) - $text_width_line + $TTFbox[0] - $min_x + round($size * 0.25) - $margin; break; } //ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y, $letter_color_text, $ttffont, $text); $this->DebugMessage('WatermarkText() calling ImageTTFtext($gdimg, ' . $size . ', ' . $angle . ', ' . $text_origin_x . ', ' . ($text_origin_y + $y_offset) . ', $letter_color_text, ' . $ttffont . ', ' . $line . ')', __FILE__, __LINE__); ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y + $y_offset, $letter_color_text, $ttffont, $line); $y_offset += $char_height; } } return true; } else { $size = min(5, max(1, $size)); $this->DebugMessage('Using built-in font (size=' . $size . ') for text watermark' . ($ttffont ? ' because $ttffont !is_readable(' . $ttffont . ')' : ''), __FILE__, __LINE__); $text_width = 0; $text_height = 0; foreach ($textlines as $dummy => $line) { $text_width = max($text_width, ImageFontWidth($size) * strlen($line)); $text_height += ImageFontHeight($size); } if ($img_watermark = phpthumb_functions::ImageCreateFunction($text_width, $text_height)) { ImageAlphaBlending($img_watermark, false); if (phpthumb_functions::IsHexColor($bg_color)) { $text_background_alpha = round(127 * ((100 - min(max(0, $bg_opacity), 100)) / 100)); $text_color_background = phpthumb_functions::ImageHexColorAllocate($img_watermark, $bg_color, false, $text_background_alpha); } else { $text_color_background = phpthumb_functions::ImageHexColorAllocate($img_watermark, 'FFFFFF', false, 127); } $this->DebugMessage('WatermarkText() calling ImageFilledRectangle($img_watermark, 0, 0, ' . ImageSX($img_watermark) . ', ' . ImageSY($img_watermark) . ', $text_color_background)', __FILE__, __LINE__); ImageFilledRectangle($img_watermark, 0, 0, ImageSX($img_watermark), ImageSY($img_watermark), $text_color_background); if ($angle && function_exists('ImageRotate')) { // using $img_watermark_mask is pointless if ImageRotate function isn't available if ($img_watermark_mask = phpthumb_functions::ImageCreateFunction($text_width, $text_height)) { $mask_color_background = ImageColorAllocate($img_watermark_mask, 0, 0, 0); ImageAlphaBlending($img_watermark_mask, false); ImageFilledRectangle($img_watermark_mask, 0, 0, ImageSX($img_watermark_mask), ImageSY($img_watermark_mask), $mask_color_background); $mask_color_watermark = ImageColorAllocate($img_watermark_mask, 255, 255, 255); } } $text_color_watermark = phpthumb_functions::ImageHexColorAllocate($img_watermark, $hex_color); foreach ($textlines as $key => $line) { switch ($alignment) { case 'C': $x_offset = round(($text_width - ImageFontWidth($size) * strlen($line)) / 2); $originOffsetX = (ImageSX($gdimg) - ImageSX($img_watermark)) / 2; $originOffsetY = (ImageSY($gdimg) - ImageSY($img_watermark)) / 2; break; case 'T': $x_offset = round(($text_width - ImageFontWidth($size) * strlen($line)) / 2); $originOffsetX = (ImageSX($gdimg) - ImageSX($img_watermark)) / 2; $originOffsetY = $margin; break; case 'B': $x_offset = round(($text_width - ImageFontWidth($size) * strlen($line)) / 2); $originOffsetX = (ImageSX($gdimg) - ImageSX($img_watermark)) / 2; $originOffsetY = ImageSY($gdimg) - ImageSY($img_watermark) - $margin; break; case 'L': $x_offset = 0; $originOffsetX = $margin; $originOffsetY = (ImageSY($gdimg) - ImageSY($img_watermark)) / 2; break; case 'TL': $x_offset = 0; $originOffsetX = $margin; $originOffsetY = $margin; break; case 'BL': $x_offset = 0; $originOffsetX = $margin; $originOffsetY = ImageSY($gdimg) - ImageSY($img_watermark) - $margin; break; case 'R': $x_offset = $text_width - ImageFontWidth($size) * strlen($line); $originOffsetX = ImageSX($gdimg) - ImageSX($img_watermark) - $margin; $originOffsetY = (ImageSY($gdimg) - ImageSY($img_watermark)) / 2; break; case 'TR': $x_offset = $text_width - ImageFontWidth($size) * strlen($line); $originOffsetX = ImageSX($gdimg) - ImageSX($img_watermark) - $margin; $originOffsetY = $margin; break; case 'BR': default: if (!empty($originOffsetX) || !empty($originOffsetY)) { // absolute pixel positioning } else { $x_offset = $text_width - ImageFontWidth($size) * strlen($line); $originOffsetX = ImageSX($gdimg) - ImageSX($img_watermark) - $margin; $originOffsetY = ImageSY($gdimg) - ImageSY($img_watermark) - $margin; } break; } $this->DebugMessage('WatermarkText() calling ImageString($img_watermark, ' . $size . ', ' . $x_offset . ', ' . $key * ImageFontHeight($size) . ', ' . $line . ', $text_color_watermark)', __FILE__, __LINE__); ImageString($img_watermark, $size, $x_offset, $key * ImageFontHeight($size), $line, $text_color_watermark); if ($angle && $img_watermark_mask) { $this->DebugMessage('WatermarkText() calling ImageString($img_watermark_mask, ' . $size . ', ' . $x_offset . ', ' . $key * ImageFontHeight($size) . ', ' . $text . ', $mask_color_watermark)', __FILE__, __LINE__); ImageString($img_watermark_mask, $size, $x_offset, $key * ImageFontHeight($size), $text, $mask_color_watermark); } } if ($angle && $img_watermark_mask) { $img_watermark = ImageRotate($img_watermark, $angle, $text_color_background); $img_watermark_mask = ImageRotate($img_watermark_mask, $angle, $mask_color_background); phpthumb_filters::ApplyMask($img_watermark_mask, $img_watermark); } //phpthumb_filters::WatermarkOverlay($gdimg, $img_watermark, $alignment, $opacity, $margin); $this->DebugMessage('WatermarkText() calling phpthumb_filters::WatermarkOverlay($gdimg, $img_watermark, ' . ($originOffsetX . 'x' . $originOffsetY) . ', ' . $opacity . ', 0)', __FILE__, __LINE__); phpthumb_filters::WatermarkOverlay($gdimg, $img_watermark, $originOffsetX . 'x' . $originOffsetY, $opacity, 0); ImageDestroy($img_watermark); return true; } } return false; }
//////////////////////////////////////////////////////////////// // Debug output, to try and help me diagnose problems $phpThumb->DebugTimingMessage('phpThumbDebug[6]', __FILE__, __LINE__); if (@$_GET['phpThumbDebug'] == '6') { $phpThumb->phpThumbDebug(); } //////////////////////////////////////////////////////////////// if ($phpThumb->rawImageData) { // great } elseif (@$_GET['new']) { // generate a blank image resource of the specified size/background color/opacity if ($phpThumb->w <= 0 || $phpThumb->h <= 0) { $phpThumb->ErrorImage('"w" and "h" parameters required for "new"'); } @(list($bghexcolor, $opacity) = explode('|', $_GET['new'])); if (!phpthumb_functions::IsHexColor($bghexcolor)) { $phpThumb->ErrorImage('BGcolor parameter for "new" is not valid'); } $opacity = strlen($opacity) ? $opacity : 100; if ($phpThumb->gdimg_source = phpthumb_functions::ImageCreateFunction($phpThumb->w, $phpThumb->h)) { $alpha = (100 - min(100, max(0, $opacity))) * 1.27; if ($alpha) { $phpThumb->setParameter('is_alpha', true); ImageAlphaBlending($phpThumb->gdimg_source, false); ImageSaveAlpha($phpThumb->gdimg_source, true); } $new_background_color = phpthumb_functions::ImageHexColorAllocate($phpThumb->gdimg_source, $bghexcolor, false, $alpha); ImageFilledRectangle($phpThumb->gdimg_source, 0, 0, $phpThumb->w, $phpThumb->h, $new_background_color); } else { $phpThumb->ErrorImage('failed to create "new" image (' . $phpThumb->w . 'x' . $phpThumb->h . ')'); }
function ImageHexColorAllocate(&$gdimg_hexcolorallocate, $HexColorString, $dieOnInvalid = false, $alpha = false) { if (!is_resource($gdimg_hexcolorallocate)) { die('$gdimg_hexcolorallocate is not a GD resource in ImageHexColorAllocate()'); } if (phpthumb_functions::IsHexColor($HexColorString)) { $R = hexdec(substr($HexColorString, 0, 2)); $G = hexdec(substr($HexColorString, 2, 2)); $B = hexdec(substr($HexColorString, 4, 2)); return phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_hexcolorallocate, $R, $G, $B, $alpha); } if ($dieOnInvalid) { die('Invalid hex color string: "' . $HexColorString . '"'); } return ImageColorAllocate($gdimg_hexcolorallocate, 0x0, 0x0, 0x0); }
function CreateGDoutput() { $this->CalculateThumbnailDimensions(); // Create the GD image (either true-color or 256-color, depending on GD version) $this->gdimg_output = phpthumb_functions::ImageCreateFunction($this->thumbnail_width, $this->thumbnail_height); // Images that have transparency must have the background filled with the configured 'bg' color // otherwise the transparent color will appear as black ImageSaveAlpha($this->gdimg_output, true); if ($this->is_alpha && phpthumb_functions::gd_version() >= 2) { ImageAlphaBlending($this->gdimg_output, false); $output_full_alpha = phpthumb_functions::ImageColorAllocateAlphaSafe($this->gdimg_output, 255, 255, 255, 127); ImageFilledRectangle($this->gdimg_output, 0, 0, $this->thumbnail_width, $this->thumbnail_height, $output_full_alpha); } else { $current_transparent_color = ImageColorTransparent($this->gdimg_source); if ($this->bg || @$current_transparent_color >= 0) { $this->config_background_hexcolor = $this->bg ? $this->bg : $this->config_background_hexcolor; if (!phpthumb_functions::IsHexColor($this->config_background_hexcolor)) { return $this->ErrorImage('Invalid hex color string "' . $this->config_background_hexcolor . '" for parameter "bg"'); } $background_color = phpthumb_functions::ImageHexColorAllocate($this->gdimg_output, $this->config_background_hexcolor); ImageFilledRectangle($this->gdimg_output, 0, 0, $this->thumbnail_width, $this->thumbnail_height, $background_color); } } $this->DebugMessage('CreateGDoutput() returning canvas "' . $this->thumbnail_width . 'x' . $this->thumbnail_height . '"', __FILE__, __LINE__); return true; }
function WhiteBalance(&$gdimg, $targetColor = '') { if (phpthumb_functions::IsHexColor($targetColor)) { $targetPixel = array('red' => hexdec(substr($targetColor, 0, 2)), 'green' => hexdec(substr($targetColor, 2, 2)), 'blue' => hexdec(substr($targetColor, 4, 2))); } else { $Analysis = phpthumb_filters::HistogramAnalysis($gdimg, false); $targetPixel = array('red' => max(array_keys($Analysis['red'])), 'green' => max(array_keys($Analysis['green'])), 'blue' => max(array_keys($Analysis['blue']))); } $grayValue = phpthumb_functions::GrayscaleValue($targetPixel['red'], $targetPixel['green'], $targetPixel['blue']); $scaleR = $grayValue / $targetPixel['red']; $scaleG = $grayValue / $targetPixel['green']; $scaleB = $grayValue / $targetPixel['blue']; for ($x = 0; $x < ImageSX($gdimg); $x++) { for ($y = 0; $y < ImageSY($gdimg); $y++) { $currentPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, max(0, min(255, round($currentPixel['red'] * $scaleR))), max(0, min(255, round($currentPixel['green'] * $scaleG))), max(0, min(255, round($currentPixel['blue'] * $scaleB))), $currentPixel['alpha']); ImageSetPixel($gdimg, $x, $y, $newColor); } } return true; }
function WatermarkText(&$gdimg, $text, $size, $alignment, $hex_color = '000000', $ttffont = '', $opacity = 100, $margin = 5, $angle = 0, $bg_color = false, $bg_opacity = 0, $fillextend = '') { // text watermark requested if (!$text) { return false; } ImageAlphaBlending($gdimg, true); $metaTextArray = array('^Fb' => $this->phpThumbObject->getimagesizeinfo['filesize'], '^Fk' => round($this->phpThumbObject->getimagesizeinfo['filesize'] / 1024), '^Fm' => round($this->phpThumbObject->getimagesizeinfo['filesize'] / 1048576), '^X' => $this->phpThumbObject->getimagesizeinfo[0], '^Y' => $this->phpThumbObject->getimagesizeinfo[1], '^x' => ImageSX($gdimg), '^y' => ImageSY($gdimg), '^^' => '^'); $text = strtr($text, $metaTextArray); $text = str_replace("\r\n", "\n", $text); $text = str_replace("\r", "\n", $text); $textlines = explode("\n", $text); if (@is_readable($ttffont) && is_file($ttffont)) { $opacity = 100 - intval(max(min($opacity, 100), 0)); $this->DebugMessage('Using TTF font "' . $ttffont . '"', __FILE__, __LINE__); $TTFbox = ImageTTFbBox($size, $angle, $ttffont, $text); $min_x = min($TTFbox[0], $TTFbox[2], $TTFbox[4], $TTFbox[6]); $max_x = max($TTFbox[0], $TTFbox[2], $TTFbox[4], $TTFbox[6]); //$text_width = round($max_x - $min_x + ($size * 0.5)); $text_width = round($max_x - $min_x); $min_y = min($TTFbox[1], $TTFbox[3], $TTFbox[5], $TTFbox[7]); $max_y = max($TTFbox[1], $TTFbox[3], $TTFbox[5], $TTFbox[7]); //$text_height = round($max_y - $min_y + ($size * 0.5)); $text_height = round($max_y - $min_y); $TTFboxChar = ImageTTFbBox($size, $angle, $ttffont, 'jH'); $char_min_y = min($TTFboxChar[1], $TTFboxChar[3], $TTFboxChar[5], $TTFboxChar[7]); $char_max_y = max($TTFboxChar[1], $TTFboxChar[3], $TTFboxChar[5], $TTFboxChar[7]); $char_height = round($char_max_y - $char_min_y); switch ($alignment) { case 'T': $text_origin_x = round((ImageSX($gdimg) - $text_width) / 2); $text_origin_y = $char_height + $margin; break; case 'B': $text_origin_x = round((ImageSX($gdimg) - $text_width) / 2); $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin; break; case 'L': $text_origin_x = $margin; $text_origin_y = round((ImageSY($gdimg) - $text_height) / 2) + $char_height; break; case 'R': $text_origin_x = ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin; $text_origin_y = round((ImageSY($gdimg) - $text_height) / 2) + $char_height; break; case 'C': $text_origin_x = round((ImageSX($gdimg) - $text_width) / 2); $text_origin_y = round((ImageSY($gdimg) - $text_height) / 2) + $char_height; break; case 'TL': $text_origin_x = $margin; $text_origin_y = $char_height + $margin; break; case 'TR': $text_origin_x = ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin; $text_origin_y = $char_height + $margin; break; case 'BL': $text_origin_x = $margin; $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin; break; case 'BR': default: $text_origin_x = ImageSX($gdimg) - $text_width + $TTFbox[0] - $min_x + round($size * 0.25) - $margin; $text_origin_y = ImageSY($gdimg) + $TTFbox[1] - $margin; break; } $letter_color_text = phpthumb_functions::ImageHexColorAllocate($gdimg, $hex_color, false, $opacity * 1.27); if ($alignment == '*') { $text_origin_y = $char_height + $margin; while ($text_origin_y - $text_height < ImageSY($gdimg)) { $text_origin_x = $margin; while ($text_origin_x < ImageSX($gdimg)) { ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y, $letter_color_text, $ttffont, $text); $text_origin_x += $text_width + $margin; } $text_origin_y += $text_height + $margin; } } else { //ImageRectangle($gdimg, $text_origin_x + $min_x, $text_origin_y + $TTFbox[1], $text_origin_x + $min_x + $text_width, $text_origin_y + $TTFbox[1] - $text_height, $letter_color_text); if (phpthumb_functions::IsHexColor($bg_color)) { $text_background_alpha = round(127 * ((100 - min(max(0, $bg_opacity), 100)) / 100)); $text_color_background = phpthumb_functions::ImageHexColorAllocate($gdimg, $bg_color, false, $text_background_alpha); } else { $text_color_background = phpthumb_functions::ImageHexColorAllocate($gdimg, 'FFFFFF', false, 127); } $x1 = $text_origin_x + $min_x; $y1 = $text_origin_y + $TTFbox[1]; $x2 = $text_origin_x + $min_x + $text_width; $y2 = $text_origin_y + $TTFbox[1] - $text_height; $x_TL = eregi('x', $fillextend) ? 0 : min($x1, $x2); $y_TL = eregi('y', $fillextend) ? 0 : min($y1, $y2); $x_BR = eregi('x', $fillextend) ? ImageSX($gdimg) : max($x1, $x2); $y_BR = eregi('y', $fillextend) ? ImageSY($gdimg) : max($y1, $y2); //while ($y_BR > ImageSY($gdimg)) { // $y_TL--; // $y_BR--; // $text_origin_y--; //} ImageFilledRectangle($gdimg, $x_TL, $y_TL, $x_BR, $y_BR, $text_color_background); ImageTTFtext($gdimg, $size, $angle, $text_origin_x, $text_origin_y, $letter_color_text, $ttffont, $text); } return true; } else { $size = min(5, max(1, $size)); $this->DebugMessage('Using built-in font (size=' . $size . ') for text watermark' . ($ttffont ? ' because $ttffont !is_readable(' . $ttffont . ')' : ''), __FILE__, __LINE__); $text_width = 0; $text_height = 0; foreach ($textlines as $dummy => $line) { $text_width = max($text_width, ImageFontWidth($size) * strlen($line)); $text_height += ImageFontHeight($size); } if ($img_watermark = phpthumb_functions::ImageCreateFunction($text_width, $text_height)) { ImageAlphaBlending($img_watermark, false); if (phpthumb_functions::IsHexColor($bg_color)) { $text_background_alpha = round(127 * ((100 - min(max(0, $bg_opacity), 100)) / 100)); $text_color_background = phpthumb_functions::ImageHexColorAllocate($img_watermark, $bg_color, false, $text_background_alpha); } else { $text_color_background = phpthumb_functions::ImageHexColorAllocate($img_watermark, 'FFFFFF', false, 127); } ImageFilledRectangle($img_watermark, 0, 0, ImageSX($img_watermark), ImageSY($img_watermark), $text_color_background); if ($angle && function_exists('ImageRotate')) { // using $img_watermark_mask is pointless if ImageRotate function isn't available if ($img_watermark_mask = phpthumb_functions::ImageCreateFunction($text_width, $text_height)) { $mask_color_background = ImageColorAllocate($img_watermark_mask, 0, 0, 0); ImageAlphaBlending($img_watermark_mask, false); ImageFilledRectangle($img_watermark_mask, 0, 0, ImageSX($img_watermark_mask), ImageSY($img_watermark_mask), $mask_color_background); $mask_color_watermark = ImageColorAllocate($img_watermark_mask, 255, 255, 255); } } $text_color_watermark = phpthumb_functions::ImageHexColorAllocate($img_watermark, $hex_color); foreach ($textlines as $key => $line) { switch ($alignment) { case 'C': case 'T': case 'B': $x_offset = round(($text_width - ImageFontWidth($size) * strlen($line)) / 2); break; case 'L': case 'TL': case 'BL': $x_offset = 0; break; case 'R': case 'TR': case 'BR': default: $x_offset = $text_width - ImageFontWidth($size) * strlen($line); break; } ImageString($img_watermark, $size, $x_offset, $key * ImageFontHeight($size), $line, $text_color_watermark); if ($angle && $img_watermark_mask) { ImageString($img_watermark_mask, $size, $x_offset, $key * ImageFontHeight($size), $text, $mask_color_watermark); } } if ($angle && $img_watermark_mask) { $img_watermark = ImageRotate($img_watermark, $angle, $text_color_background); $img_watermark_mask = ImageRotate($img_watermark_mask, $angle, $mask_color_background); phpthumb_filters::ApplyMask($img_watermark_mask, $img_watermark); } phpthumb_filters::WatermarkOverlay($gdimg, $img_watermark, $alignment, $opacity, $margin); ImageDestroy($img_watermark); return true; } } return false; }
function Sepia(&$gdimg, $amount, $targetColor) { $amount = is_numeric($amount) ? max(0, min(100, $amount)) : 50; $targetColor = phpthumb_functions::IsHexColor($targetColor) ? $targetColor : 'A28065'; $TargetPixel['red'] = hexdec(substr($targetColor, 0, 2)); $TargetPixel['green'] = hexdec(substr($targetColor, 2, 2)); $TargetPixel['blue'] = hexdec(substr($targetColor, 4, 2)); $ImageSX = ImageSX($gdimg); $ImageSY = ImageSY($gdimg); for ($x = 0; $x < $ImageSX; $x++) { for ($y = 0; $y < $ImageSY; $y++) { $OriginalPixel = phpthumb_functions::GetPixelColor($gdimg, $x, $y); $GrayPixel = phpthumb_functions::GrayscalePixel($OriginalPixel); // http://www.gimpguru.org/Tutorials/SepiaToning/ // "In the traditional sepia toning process, the tinting occurs most in // the mid-tones: the lighter and darker areas appear to be closer to B&W." $SepiaAmount = (128 - abs($GrayPixel['red'] - 128)) / 128 * ($amount / 100); foreach ($TargetPixel as $key => $value) { $NewPixel[$key] = round(max(0, min(255, $GrayPixel[$key] * (1 - $SepiaAmount) + $TargetPixel[$key] * $SepiaAmount))); } $newColor = phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg, $NewPixel['red'], $NewPixel['green'], $NewPixel['blue'], $OriginalPixel['alpha']); ImageSetPixel($gdimg, $x, $y, $newColor); } } return true; }