PHP ImagickDraw::setTextEncoding方法代码示例

 /**
  * function filter_render_type
  * Returns HTML markup containing an image with a data: URI
  * @param string $content The text to be rendered
  * @param string $font_file The path to a font file in a format ImageMagick can handle
  * @param integer $font_size The font size, in pixels (defaults to 28)
  * @param string $font_color The font color (defaults to 'black')
  * @param string $background_color The background color (defaults to 'transparent')
  * @param string $output_format The image format to use (defaults to 'png')
  * @return string HTML markup containing the rendered image
  **/
 public function filter_render_type($content, $font_file, $font_size, $font_color, $background_color, $output_format, $width)
 {
     // Preprocessing $content
     // 1. Strip HTML tags. It would be better to support them, but we just strip them for now.
     // 2. Decode HTML entities to UTF-8 charaaters.
     $content = html_entity_decode(strip_tags($content), ENT_QUOTES, 'UTF-8');
     // 3. Do word wrap when $width is specified. Not work for double-width characters.
     if (is_int($width)) {
         $content = wordwrap($content, floor($width / (0.3 * $font_size)));
     }
     $cache_group = strtolower(get_class($this));
     $cache_key = $font_file . $font_size . $font_color . $background_color . $output_format . $content . $width;
     if (!Cache::has(array($cache_group, md5($cache_key)))) {
         $font_color = new ImagickPixel($font_color);
         $background_color = new ImagickPixel($background_color);
         $draw = new ImagickDraw();
         $draw->setFont($font_file);
         $draw->setFontSize($font_size);
         $draw->setFillColor($font_color);
         $draw->setTextEncoding('UTF-8');
         $draw->annotation(0, $font_size * 2, $content);
         $canvas = new Imagick();
         $canvas->newImage(1000, $font_size * 5, $background_color);
         $canvas->setImageFormat($output_format);
         $canvas->drawImage($draw);
         // The following line ensures that the background color is set in the PNG
         // metadata, when using that format. This allows you, by specifying an RGBa
         // background color (e.g. #ffffff00) to create PNGs with a transparent background
         // for browsers that support it but with a "fallback" background color (the RGB
         // part of the RGBa color) for IE6, which does not support alpha in PNGs.
         $canvas->setImageBackgroundColor($background_color);
         $canvas->trimImage(0);
         Cache::set(array($cache_group, md5($cache_key)), $canvas->getImageBlob());
     }
     return '<img class="rendered-type" src="' . URL::get('display_rendertype', array('hash' => md5($cache_key), 'format' => $output_format)) . '" title="' . $content . '" alt="' . $content . '">';
 }

function generate_final_video_frames($converted_avatars, $uid, $dir = 'data', $videos_frames)
{
    include get_template_directory() . '/video_libs/libs.php';
    $frames = array();
    $i = 1;
    $converted_path = $dir . "/{$uid}/frames";
    if (!file_exists("{$converted_path}")) {
        exec("mkdir -p {$converted_path}");
    }
    exec("chmod 777 -R {$converted_path}");
    exec("rm -rf {$converted_path}/*");
    #include get_template_directory() . '/video_libs/data.php';
    /*include get_template_directory() . '/video_libs/data_live.php';
    
        $videos_frames = get_data_videos($_REQUEST['uid'], $_REQUEST['eid']);*/
    foreach ($videos_frames as $key => $value) {
        $name = generate_filename($i);
        $filename = $value->imageFrame;
        $curr_frame = "{$converted_path}/{$name}";
        $frames[] = $curr_frame;
        $text_objs = isset($value->text) ? $value->text : array();
        $image_objs = isset($value->imageFace) ? $value->imageFace : array();
        if (array_key_exists($filename, $converted_avatars) && !empty($converted_avatars[$filename])) {
            if (!empty($image_objs)) {
                foreach ($image_objs as $image_obj) {
                    $order = $image_obj->order;
                    if ($order == 'back') {
                        $msg = exec("convert {$converted_avatars[$filename]} {$filename} -composite {$curr_frame}");
                    } else {
                        $msg = exec("convert {$filename} {$converted_avatars[$filename]} -composite {$curr_frame}");
                    }
                }
            }
        } else {
            exec("cp {$filename} {$curr_frame}");
        }
        $w = 210;
        if (!empty($text_objs)) {
            foreach ($text_objs as $text_obj) {
                $picin = new Imagick($curr_frame);
                $draw = new ImagickDraw();
                $draw->setTextEncoding('utf-8');
                $draw->setFillColor("rgba(255, 255, 255, {$text_obj->opacity})");
                $draw->setFont($text_obj->font);
                $draw->setFontSize($text_obj->size);
                $positions = explode(',', $text_obj->position);
                //list($lines, $lineHeight)= wordWrapAnnotation($picin, $draw, $text_obj->text, $w-10);
                if (!empty($text_obj->break) && $text_obj->break == 'yes') {
                    $y = $positions[1];
                    $line_height = 55;
                    $str = wordwrap($text_obj->text, 19, "\n");
                    $str_array = explode("\n", $str);
                    foreach ($str_array as $line) {
                        $picin->annotateImage($draw, $positions[0], $y, 0, $line);
                        $y += $line_height;
                    }
                } else {
                    $picin->annotateImage($draw, $positions[0], $positions[1], 0, $text_obj->text);
                }
                //$picin->annotateImage($draw, $positions[0], $positions[1], 0, $text_obj->text);
                //$picin->annotateImage($draw, $positions[0], $positions[1], 0, $lines);
                $picin->writeimage($curr_frame);
                /*if( strpos($filename, '110.png')){
                      echo '<pre>';
                      print_r($image_obj);
                      echo '</pre>';
                      echo 'aaaa';die;
                  }*/
            }
        }
        $i++;
    }
    return $frames;
}

var_dump($draw->getGravity() === Imagick::GRAVITY_SOUTHEAST);
// stroke
$draw->setStrokeAntialias(false);
var_dump($draw->getStrokeAntialias());
$draw->setStrokeColor(new ImagickPixel('#F02B88'));
var_dump($draw->getStrokeColor()->getColor());
$draw->setStrokeDashArray(array(1, 2, 3));
var_dump($draw->getStrokeDashArray());
$draw->setStrokeDashOffset(-1);
var_dump($draw->getStrokeDashOffset());
$draw->setStrokeLineCap(Imagick::LINECAP_SQUARE);
var_dump($draw->getStrokeLineCap() === Imagick::LINECAP_SQUARE);
$draw->setStrokeLineJoin(Imagick::LINEJOIN_BEVEL);
var_dump($draw->getStrokeLineJoin() === Imagick::LINEJOIN_BEVEL);
$draw->setStrokeMiterLimit(3);
var_dump($draw->getStrokeMiterLimit());
$draw->setStrokeOpacity(0.9);
printf("%.2f\n", $draw->getStrokeOpacity());
$draw->setStrokeWidth(1.2);
printf("%.2f\n", $draw->getStrokeWidth());
// text
$draw->setTextAlignment(Imagick::ALIGN_CENTER);
var_dump($draw->getTextAlignment() === Imagick::ALIGN_CENTER);
$draw->setTextAntialias(false);
var_dump($draw->getTextAntialias());
$draw->setTextDecoration(Imagick::DECORATION_LINETROUGH);
var_dump($draw->getTextDecoration() === Imagick::DECORATION_LINETROUGH);
$draw->setTextEncoding('UTF-8');
var_dump($draw->getTextEncoding());
$draw->setTextUnderColor('cyan');
var_dump($draw->getTextUnderColor()->getColor());

function text2image($text, $width, $margin, $size, $font, $align, $stroke, $bg, $color, $scolor, $out)
{
    $text = html_entity_decode($text);
    $lines = array();
    //break up the text on the line
    $imageForMetric = new Imagick();
    $drawForMetric = new ImagickDraw();
    $drawForMetric->setFont($font);
    $drawForMetric->setFontSize($size);
    $explicitLines = preg_split('/\\n|\\r\\n?/', $text);
    $key = 0;
    foreach ($explicitLines as $line) {
        $words = explode(" ", $line);
        $line = $words[0];
        for ($i = 1; $i < count($words); $i++) {
            if ($imageForMetric->queryFontMetrics($drawForMetric, $line . " " . $words[$i])['textWidth'] >= $width - $margin * 2) {
                $key++;
                $lines[$key]['text'] = $line;
                $line = $words[$i];
            } else {
                $line .= " " . $words[$i];
            }
        }
        $key++;
        $lines[$key]['text'] = $line;
        $lines[$key]['type'] = 'last';
    }
    $imageForMetric->destroy();
    $drawForMetric->destroy();
    //line height
    $lineHeightPx = $size * 1.5;
    //margin top and bottom (can leave $pad=$margin;)
    if ($size < 16) {
        $pad = $size / 2;
    } elseif ($size < 26) {
        $pad = $size / 3;
    } elseif ($size < 36) {
        $pad = $size / 4;
    } else {
        $pad = 0;
    }
    //height image
    $textHeight = count($lines) * $lineHeightPx + $pad * 2;
    $image = new Imagick();
    $draw = new ImagickDraw();
    $pixel = new ImagickPixel('#' . $bg);
    $image->newImage($width, $textHeight + $lineHeightPx / 2, $pixel);
    $draw->setFillColor('#' . $color);
    $draw->setFont($font);
    $draw->setFontSize($size);
    //for setTextAlignment
    if ($align == 'center') {
        $alignNumber = 2;
    } elseif ($align == 'right') {
        $alignNumber = 3;
    } else {
        $alignNumber = 1;
    }
    $draw->setTextAlignment($alignNumber);
    $draw->setTextEncoding('UTF-8');
    //x start position
    if ($align == 'center') {
        $xpos = $width / 2;
    } elseif ($align == 'right') {
        $xpos = $width - $margin;
    } else {
        $xpos = $margin;
    }
    //text stroke
    if ($stroke) {
        $drawstroke = new ImagickDraw();
        $drawstroke->setFillColor('#' . $scolor);
        $drawstroke->setFont($font);
        $drawstroke->setFontSize($size);
        $drawstroke->setTextAlignment($alignNumber);
        $drawstroke->setTextEncoding('UTF-8');
    }
    //y start position
    $ypos = $lineHeightPx + $pad;
    $i = 0;
    foreach ($lines as $value => $line) {
        if ($align == 'justify' && (!isset($lines[$value]['type']) || $lines[$value]['type'] != 'last')) {
            //justify for all lines (except last)
            $line = trim($lines[$value]['text']);
            $sp = 0;
            $j = 0;
            $line = preg_replace("/  +/", " ", $line);
            $spaces = substr_count($line, ' ');
            $word = explode(' ', $line);
            //word metrics
            $metrics = 0;
            foreach ($word as $w) {
                $metrics = $metrics + $image->queryFontMetrics($draw, $w)['textWidth'];
            }
            $spacewidth = ($width - $margin * 2 - $metrics) / $spaces;
            foreach ($word as $w) {
                if ($w !== '') {
                    $j++;
                    if ($j > 1) {
                        $sp = $sp + $spacewidth;
//.........这里部分代码省略.........