public function createImage($text = '', $fontSize = 5)
{
// GD's built-in fonts are numbered from 1 - 5
$font_size = $fontSize;
// Calculate the appropriate image size
$image_height = intval(imageFontHeight($font_size) * 2);
$image_width = intval(strlen($text) * imageFontWidth($font_size) * 1.3);
// Create the image
$image = imageCreate($image_width, $image_height);
// Create the colors to use in the image
// gray background
$back_color = imageColorAllocate($image, 216, 216, 216);
// blue text
$text_color = imageColorAllocate($image, 0, 0, 255);
// black border
$rect_color = imageColorAllocate($image, 0, 0, 0);
// Figure out where to draw the text
// (Centered horizontally and vertically
$x = ($image_width - imageFontWidth($font_size) * strlen($text)) / 2;
$y = ($image_height - imageFontHeight($font_size)) / 2;
// Draw the text
imageString($image, $font_size, $x, $y, $text, $text_color);
// Draw a black border
imageRectangle($image, 0, 0, imageSX($image) - 1, imageSY($image) - 1, $rect_color);
// Send the image to the browser
header('Content-Type: image/png');
imagePNG($image);
imageDestroy($image);
}
if (intval($z) > 13) {
$fac = pow(2, $z - 13);
$x = (int) ($x / $fac);
$y = (int) ($y / $fac);
$file = $base . "packed/" . $x . "/" . $y . ".pack";
} else {
$file = $base . $z . "/" . $x . "/" . $y . ".png";
}
$string = date("Y-m-d H:i:s", filemtime($file));
$iwidth = 256;
$iheight = 128;
// create empty image
$img = ImageCreateTrueColor($iwidth, $iheight);
$transparentCol = imagecolorallocate($img, 255, 255, 0);
imagefilledrectangle($img, 0, 0, $iwidth, $iheight, $transparentCol);
imagecolortransparent($img, $transparentCol);
// write text
$font = 16;
$width = imageFontWidth($font) * strlen($string);
$height = imageFontHeight($font);
$x = imagesx($img) - $width;
$y = imagesy($img) - 2 * $height;
$backgroundColor = imagecolorallocate($img, 255, 255, 255);
$textColor = imagecolorallocate($img, 0, 0, 0);
imageString($img, $font, $x - 1, $y - 1, $string, $backgroundColor);
imageString($img, $font, $x - 1, $y + 1, $string, $backgroundColor);
imageString($img, $font, $x + 1, $y + 1, $string, $backgroundColor);
imageString($img, $font, $x + 1, $y - 1, $string, $backgroundColor);
imageString($img, $font, $x, $y, $string, $textColor);
//imageString ($img, $font, $x-50, $y-20, $file, $textColor);
ImagePng($img);
/**
* Appends information about the source image to the thumbnail.
*
* @param string $thumbnail
* @return string
*/
protected function appendSourceInfo($thumbnail)
{
if (!function_exists('imageCreateFromString') || !function_exists('imageCreateTrueColor')) {
return $thumbnail;
}
$imageSrc = imageCreateFromString($thumbnail);
// get image size
$width = imageSX($imageSrc);
$height = imageSY($imageSrc);
// increase height
$heightDst = $height + self::$sourceInfoLineHeight * 2;
// create new image
$imageDst = imageCreateTrueColor($width, $heightDst);
imageAlphaBlending($imageDst, false);
// set background color
$background = imageColorAllocate($imageDst, 102, 102, 102);
imageFill($imageDst, 0, 0, $background);
// copy image
imageCopy($imageDst, $imageSrc, 0, 0, 0, 0, $width, $height);
imageSaveAlpha($imageDst, true);
// get font size
$font = 2;
$fontWidth = imageFontWidth($font);
$fontHeight = imageFontHeight($font);
$fontColor = imageColorAllocate($imageDst, 255, 255, 255);
// write source info
$line1 = $this->sourceName;
// imageString supports only ISO-8859-1 encoded strings
if (CHARSET != 'ISO-8859-1') {
$line1 = StringUtil::convertEncoding(CHARSET, 'ISO-8859-1', $line1);
}
// truncate text if necessary
$maxChars = floor($width / $fontWidth);
if (strlen($line1) > $maxChars) {
$line1 = $this->truncateSourceName($line1, $maxChars);
}
$line2 = $this->sourceWidth . 'x' . $this->sourceHeight . ' ' . FileUtil::formatFilesize($this->sourceSize);
// write line 1
// calculate text position
$textX = 0;
$textY = 0;
if ($fontHeight < self::$sourceInfoLineHeight) {
$textY = intval(round((self::$sourceInfoLineHeight - $fontHeight) / 2));
}
if (strlen($line1) * $fontWidth < $width) {
$textX = intval(round(($width - strlen($line1) * $fontWidth) / 2));
}
imageString($imageDst, $font, $textX, $height + $textY, $line1, $fontColor);
// write line 2
// calculate text position
$textX = 0;
$textY = 0;
if ($fontHeight < self::$sourceInfoLineHeight) {
$textY = self::$sourceInfoLineHeight + intval(round((self::$sourceInfoLineHeight - $fontHeight) / 2));
}
if (strlen($line2) * $fontWidth < $width) {
$textX = intval(round(($width - strlen($line2) * $fontWidth) / 2));
}
imageString($imageDst, $font, $textX, $height + $textY, $line2, $fontColor);
// output image
ob_start();
if ($this->imageType == 1 && function_exists('imageGIF')) {
@imageGIF($imageDst);
$this->mimeType = 'image/gif';
} else {
if (($this->imageType == 1 || $this->imageType == 3) && function_exists('imagePNG')) {
@imagePNG($imageDst);
$this->mimeType = 'image/png';
} else {
if (function_exists('imageJPEG')) {
@imageJPEG($imageDst, null, 90);
$this->mimeType = 'image/jpeg';
} else {
return false;
}
}
}
@imageDestroy($imageDst);
$thumbnail = ob_get_contents();
ob_end_clean();
return $thumbnail;
}
$stringx = $stringy = -1;
$file = file($irpg_db);
unset($file[0]);
foreach ($file as $line) {
list($username, , , , , , , , , , $x, $y) = explode("\t", trim($line));
if ($username == $user) {
$stringx = $x;
$stringy = $y;
break;
}
}
if ($stringx == $stringy && $stringx == -1) {
imageString($map, 5, 200, 245, "NO SUCH USER", imagecolorallocate($map, 255, 0, 0));
} else {
$width = imageFontWidth(5);
$height = imageFontHeight(5);
if ($x + (strlen($user) + 1) * $width > 500) {
$stringx = $x - (strlen($user) + 1) * $width - 12;
}
if ($y + $height > 500) {
$stringy = $y - $height / 2 - 2;
}
$magenta = imageColorAllocate($map, 255, 0, 255);
imageColorTransparent($map, $magenta);
$brown = imagecolorallocate($map, 102, 51, 0);
$parchment = imagecolorallocate($map, 255, 255, 204);
// Avoid drawing a brown dot on a brown area
$rgb = imageColorAt($map, $x, $y);
if ($rgb > 0) {
// $rgb is 0 on our parchment-colored areas
$temp = $brown;
<?php
// GD's built-in fonts are numbered from 1 - 5
$font_size = 5;
// Calculate the appropriate image size
$image_height = intval(imageFontHeight($font_size) * 2);
$image_width = intval(strlen($_GET['text']) * imageFontWidth($font_size) * 1.3);
// Create the image
$image = imageCreate($image_width, $image_height);
// Create the colors to use in the image
// gray background
$back_color = imageColorAllocate($image, 216, 216, 216);
// blue text
$text_color = imageColorAllocate($image, 0, 0, 255);
// black border
$rect_color = imageColorAllocate($image, 0, 0, 0);
// Figure out where to draw the text
// (Centered horizontally and vertically
$x = ($image_width - imageFontWidth($font_size) * strlen($_GET['text'])) / 2;
$y = ($image_height - imageFontHeight($font_size)) / 2;
// Draw the text
imageString($image, $font_size, $x, $y, $_GET['text'], $text_color);
// Draw a black border
imageRectangle($image, 0, 0, imageSX($image) - 1, imageSY($image) - 1, $rect_color);
// Send the image to the browser
header('Content-Type: image/png');
imagePNG($image);
imageDestroy($image);
/**
* Function: getSizeForString
*
* Returns an <mxRectangle> with the size (width and height in pixels) of
* the given string. The string may contain HTML markup. Newlines should be
* converted to <br> before calling this method.
*
* Parameters:
*
* text - String whose size should be returned.
* fontSize - Integer that specifies the font size in pixels. Default is
* <mxConstants.DEFAULT_FONTSIZE>.
* fontFamily - String that specifies the name of the font famil.y Default
* is <mxConstants.DEFAULT_FONTFAMILY>.
*
*/
static function getSizeForString($text, $fontSize = 0, $fontFamily = null)
{
if (is_string($text) && strlen($text) > 0) {
if ($fontSize == 0) {
$fontSize = mxConstants::$DEFAULT_FONTSIZE;
}
if ($fontFamily == null) {
$fontFamily = mxConstants::$DEFAULT_FONTFAMILY;
}
$lines = explode("\n", $text);
$lineCount = sizeof($lines);
if (mxConstants::$TTF_ENABLED && function_exists("imagettfbbox")) {
$bbox = imagettfbbox($fontSize * mxConstants::$TTF_SIZEFACTOR, 0, $fontFamily, $text);
$textWidth = $bbox[2] - $bbox[0];
$textHeight = ($fontSize + mxConstants::$DEFAULT_LINESPACING) * $lineCount;
return new mxRectangle(0, 0, $textWidth, $textHeight);
} else {
if (function_exists("imageFontHeight") && function_exists("imageFontWidth")) {
$font = mxUtils::getFixedFontSize($fontSize, $fontFamily);
$textHeight = (imageFontHeight($font) + mxConstants::$DEFAULT_LINESPACING) * $lineCount;
$charWidth = imageFontWidth($font);
$textWidth = 0;
for ($i = 0; $i < sizeof($lines); $i++) {
$textWidth = max($textWidth, $charWidth * strlen($lines[$i]));
}
return new mxRectangle(0, 0, $textWidth, $textHeight);
}
}
}
return new mxRectangle();
}
function addCoordinates($im, $direction)
{
if (!isCoordinatesEnabled()) {
return;
}
$decorationWidth = getDecorationWidth();
$squareSize = getSquareSize();
$font = getCoordinateFont();
$x_left_numbers = ($decorationWidth - imageFontWidth($font)) / 2;
$x_right_numbers = $x_left_numbers + 8 * $squareSize + $decorationWidth;
$y1 = $decorationWidth + ($squareSize - imageFontHeight($font)) / 2;
if ($direction == 'normal') {
$deltaY = $squareSize;
} else {
$y1 = $y1 + 7 * $squareSize;
$deltaY = -$squareSize;
}
$black = imageColorAllocate($im, 0, 0, 0);
$y = $y1;
for ($k = 8; $k >= 1; $k--) {
imageString($im, $font, $x_left_numbers, $y, $k, $black);
imageString($im, $font, $x_right_numbers, $y, $k, $black);
$y += $deltaY;
}
$file = substr($files, $k - 1, 1);
$x1 = $decorationWidth + ($squareSize - imageFontWidth($font)) / 2;
$y_top_letters = ($decorationWidth - imageFontHeight($font)) / 2;
$y_bottom_letters = $y_top_letters + 8 * $squareSize + $decorationWidth;
if ($direction == 'normal') {
$deltaX = $squareSize;
} else {
$x1 = $x1 + 7 * $squareSize;
$deltaX = -$squareSize;
}
$files = 'abcdefgh';
$x = $x1;
for ($k = 0; $k < 8; $k++) {
$file = substr($files, $k, 1);
imageString($im, $font, $x, $y_top_letters, $file, $black);
imageString($im, $font, $x, $y_bottom_letters, $file, $black);
$x += $deltaX;
}
}
<?php
// GD's built-in fonts are numbered from 1 - 5
$font = 3;
// Calculate the appropriate image size
$image_height = intval(imageFontHeight($font) * 2);
$image_width = intval(strlen($_GET['button']) * imageFontWidth($font) * 1.3);
// Create the image
$image = imageCreate($image_width, $image_height);
// Create the colors to use in the image
// gray background
$back_color = imageColorAllocate($image, 216, 216, 216);
// blue text
$text_color = imageColorAllocate($image, 0, 0, 255);
// black border
$rect_color = imageColorAllocate($image, 0, 0, 0);
// Figure out where to draw the text
// (Centered horizontally and vertically
$x = ($image_width - imageFontWidth($font) * strlen($_GET['button'])) / 2;
$y = ($image_height - imageFontHeight($font)) / 2;
// Draw the text
imageString($image, $font, $x, $y, $_GET['button'], $text_color);
// Draw a black border
imageRectangle($image, 0, 0, imageSX($image) - 1, imageSY($image) - 1, $rect_color);
// Send the image to the browser
header('Content-Type: image/png');
imagePNG($image);
imageDestroy($image);
//干扰像素
for ($i = 0; $i <= 300; ++$i) {
$color = imageColorAllocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imageSetPixel($img, mt_rand(0, $img_w), mt_rand(0, $img_h), $color);
}
for ($i = 0; $i <= 10; ++$i) {
//设置直线颜色
$color = imageColorAllocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
//在$img图像上随机画一条直线
imageline($img, mt_rand(0, $img_w), mt_rand(0, $img_h), mt_rand(0, $img_w), mt_rand(0, $img_h), $color);
}
//矩形边框
$rect_color = imageColorAllocate($img, 0x90, 0x90, 0x90);
//白
imageRectangle($img, 0, 0, $img_w - 1, $img_h - 1, $rect_color);
//----2 操作画布
//设定字符串颜色
$str_color = imageColorAllocate($img, mt_rand(0, 100), mt_rand(0, 100), mt_rand(0, 100));
//设定字符串位置
$font_w = imageFontWidth($font);
//字体宽
$font_h = imageFontHeight($font);
//字体高
$str_w = $font_w * $char_len;
//字符串宽
imageString($img, $font, ($img_w - $str_w) / 2, ($img_h - $font_h) / 2, $code, $str_color);
//----3 输出图片内容
header('Content-Type: image/png');
imagepng($img);
//----4 销毁画布
imagedestroy($img);
