public function render($ge)
{
//BpRectangle::render($ge);
$sx = $ge->tx($this->sx());
$sy = $ge->ty($this->sy());
$ex = $ge->tx($this->ex());
$ey = $ge->ty($this->ey());
$width = $ex - $sx - $this->margin * 2;
$height = $ey - $sy - $this->margin * 2;
$lines = array();
$cur_words = array();
$cur_width = 0;
$cur_line = '';
if ($this->font_size) {
$font_size = $this->font_size;
$line_height = BpFontMetrics::getLineHeightFromFontSize($this->font, $this->string, $this->font_size);
} else {
$font_size = BpFontMetrics::getFontSizeFromLineHeight($this->font, $this->string, $this->line_height);
$line_height = $this->line_height;
}
$words = explode(' ', $this->string);
foreach ($words as $word) {
$my_words = $cur_words;
$my_words[] = $word;
$cur_width = BpFontMetrics::getWidth($this->font, implode(' ', $my_words), $font_size);
if ($cur_width <= $width) {
$cur_words[] = $word;
} else {
$lines[] = implode(' ', $cur_words);
$cur_words = array($word);
}
}
$lines[] = implode(' ', $cur_words);
$cur_pos = $sy + $this->margin;
switch ($this->alignment) {
case BpTextBox::CENTRE:
$constraint = $sx + ($ex - $sx) / 2;
break;
case BpTextBox::LEFT:
$constraint = $sx;
break;
case BpTextBox::RIGHT:
throw new Exception('unimplemented BpTextBox::RIGHT in BpTextBox::render()');
break;
default:
throw new Exception('Invalid alignment: ' . $this->alignment);
break;
}
$rounded = $line_height;
//ceil($line_height);
$texts = array();
foreach ($lines as $line) {
$metrics = new BpFontMetrics($this->font, $line, 0);
switch ($this->alignment) {
case BpTextBox::CENTRE:
$metrics->constrainXCentre($constraint);
break;
case BpTextBox::LEFT:
$metrics->constrainLeft($constraint);
break;
case BpTextBox::RIGHT:
throw new Exception('unimplemented BpTextBox::RIGHT in BpTextBox::render()');
break;
default:
throw new Exception('Invalid alignment: ' . $this->alignment);
break;
}
$metrics->constrainTop($cur_pos);
$metrics->constrainBottom($cur_pos + $line_height);
$metrics->maxFontSize($font_size);
$cur_text = new BpText($this->z, $this->text_colour, $metrics);
$texts[] = $cur_text;
$cur_pos += $rounded;
}
if ($cur_pos > $this->ey) {
$this->ey = $cur_pos + $this->margin;
}
BpRectangle::render($ge);
foreach ($texts as $cur_text) {
$cur_text->render($ge);
}
}
protected function origin()
{
$metrics = new BpFontMetrics('Activa', '0', 0);
$metrics->constrainTop($this->height() - $this->horizMargin() + $this->vertMargin() / 4);
$metrics->constrainBottom($this->height() - $this->horizMargin() + $this->vertMargin() / 2);
$metrics->constrainXCentre($this->horizMargin() / 3 * 2);
$ret = new BpText(0, 'black', $metrics);
return $ret;
}