/**
* Render a media object.
*
* @param ezcDocumentPdfPage $page
* @param ezcDocumentPdfHyphenator $hyphenator
* @param ezcDocumentPdfTokenizer $tokenizer
* @param ezcDocumentLocateableDomElement $media
* @param ezcDocumentPdfMainRenderer $mainRenderer
* @return bool
*/
public function renderNode(ezcDocumentPdfPage $page, ezcDocumentPdfHyphenator $hyphenator, ezcDocumentPdfTokenizer $tokenizer, ezcDocumentLocateableDomElement $media, ezcDocumentPdfMainRenderer $mainRenderer)
{
// Inference page styles
$styles = $this->styles->inferenceFormattingRules($media);
// Locate image file
$imageData = $media->getElementsByTagName('imagedata')->item(0);
$imageFile = $mainRenderer->locateFile((string) $imageData->getAttribute('fileref'));
$image = ezcDocumentPdfImage::createFromFile($imageFile);
// Estimate size of image box
$width = $this->getMediaBoxWidth($styles, $page, $image);
// Get available height with the estimated width
$dimensions = $this->scaleImage($styles, $image, $page, $width);
$switchBack = false;
if (($space = $page->testFitRectangle($page->x, $page->y, $dimensions[0], $dimensions[1])) === false) {
// Image with estimated dimensions does not fit on current page any
// more.
$page = $mainRenderer->getNextRenderingPosition(($pWidth = $width->get()) + $styles['text-column-spacing']->value, $pWidth);
$switchBack = true;
}
// Get maximum available space
$space = $page->testFitRectangle($page->x, $page->y, $width->get(), null);
// Apply margin of mediaobject
$space->x += $styles['margin']->value['left'];
$space->y += $styles['margin']->value['top'];
$space->width -= $styles['margin']->value['left'] + $styles['margin']->value['right'];
$space->height -= $styles['margin']->value['top'] + $styles['margin']->value['bottom'];
// Estimate required height of text blocks
$captions = $media->getElementsByTagName('caption');
$captionHeight = 0;
$textRenderer = new ezcDocumentPdfTextBlockRenderer($this->driver, $this->styles);
foreach ($captions as $caption) {
$captionHeight += $textRenderer->estimateHeight($space->width, $hyphenator, $tokenizer, $caption);
}
if (($imageHeight = $space->height - $captionHeight) < 0) {
return false;
}
// Reduce the image size, of it does not fit any more because of the captions
if ($imageHeight < $dimensions[1]) {
$dimensions[0] *= $imageHeight / $dimensions[1];
$dimensions[1] = $imageHeight;
}
// Render image
$this->driver->drawImage($imageFile, $image->getMimeType(), $space->x + ($space->width - $dimensions[0]) / 2, $space->y, $dimensions[0], $dimensions[1]);
$space->y += $dimensions[1];
// Render captions
foreach ($captions as $caption) {
$space->y += $textRenderer->renderBlock($space, $hyphenator, $tokenizer, $caption);
}
// Set covered space covered
$page->setCovered(new ezcDocumentPdfBoundingBox($page->x, $page->y, $space->width, $space->y - $page->y));
$page->y = $space->y;
// Go back to previous page, if requested
if ($switchBack) {
$this->driver->goBackOnePage();
}
return true;
}
public function testImageHandler()
{
$image = ezcDocumentPdfImage::createFromFile(dirname(__FILE__) . '/../files/pdf/images/logo-white.png');
$this->assertSame('image/png', $image->getMimeType());
$this->assertEquals(array(new ezcDocumentPcssMeasure('113px'), new ezcDocumentPcssMeasure('57px')), $image->getDimensions());
}
