function trim_text($str, $words = 10)
{
$s = word_split($str, $words);
if (strlen($s) < strlen($str)) {
$s .= '...';
}
return $s;
}
function out_index()
{
$left = $this->width - 315;
//$top = 25;
//1. 計算能放下多少 wpt, 剩下折行, 最多 $line_len 字
//第二行超過就變成 …
// $total_row = count($this->waypoint);
$line_len = 24;
$j = 1;
$index = 1;
mb_internal_encoding('UTF-8');
$line[0] = array('index' => 'No.', 'data' => "座標及說明");
foreach ($this->waypoint as $wpt) {
$str = sprintf("%d,%d %s", $wpt['tw67'][0], $wpt['tw67'][1], trim($wpt['name']));
$d = word_split($str, $line_len);
for ($i = 0; $i < count($d); $i++) {
if ($i == 0) {
$line[$j]['index'] = $index++;
} else {
$line[$j]['index'] = " ";
}
$line[$j]['data'] = $d[$i];
$j++;
}
}
//error_log(print_r($line,true));
$total_row = count($line);
// 總高度不能超過
$total = floor(($this->height - 50) / $this->fontsize) - 1;
if ($total_row > $total) {
$total_row = $total;
}
//error_log("total_row=".$total_row);
$height = $this->fontsize * $total_row + 2;
$top = 25 + ($this->height - 50 - $height) / 2;
// vcenter
echo "<g id=\"index\">\n";
// 2. 畫出框框
printf(" <rect id='index_frame' x='%d' y='%d' height='%d' width='300' fill='#FFFFFF'/>\n", $left, $top, $height);
printf(" <text id='index_col_num' x='%d' y='%d' font-size='%d' font-weight='bold' fill='#000000'>\n", $left, $top, $this->fontsize);
$j = 0;
// 號碼
foreach ($line as $useless) {
if ($j > $total_row) {
break;
}
//printf(" <tspan x='%d' y='%d'>%s</tspan>\n",$left, ($j*$this->fontsize)+$top, $j++ );
printf(" <tspan x='%d' y='%d'>%s</tspan>\n", $left, ($j + 1) * $this->fontsize + $top, $line[$j++]['index']);
}
echo "</text>\n";
$left2 = $left + 2 * $this->fontsize;
printf("<text id='index_col_name' x='%d' y='%d' font-size='%d' fill='#000000'>\n", $left2, $top, $this->fontsize);
$j = 0;
foreach ($line as $useless) {
if ($j > $total_row) {
break;
}
// printf("<tspan x='%d' y='%d'>%d,%d %s</tspan>\n",$left2, ($j*$this->fontsize)+ $top, $wpt['tw67'][0],$wpt['tw67'][1],$wpt['name']);
printf("<tspan x='%d' y='%d'>%s</tspan>\n", $left2, ($j + 1) * $this->fontsize + $top, $line[$j]['data']);
$j++;
}
echo "</text></g>";
}
/**
* @brief Trim text to a susbtring of a given number of words, and append '…' if string is longer
* than substring.
*
* @param str String to split
* @param words Number of words
*
* @return String of subset of words
*
*/
function trim_text($str, $words = 10)
{
$s = word_split($str, $words);
if (mb_strlen($s) < mb_strlen($str)) {
$s .= '…';
}
return $s;
}