nextcloud/apps/gallery/lib/tiles.php

<?php

namespace OC\Pictures;

require_once('lib/base.php');
require_once('managers.php');

const TILE_PROPORTION_HORIZONTAL = 0;
const TILE_PROPORTION_VERTICAL = 0;
const GET_THUMBNAIL_PATH = '?app=gallery&getfile=ajax/thumbnail.php&filepath=';
const TAG = 'Pictures';
const IMAGE_WIDTH = 150;

class TileBase {
  public function getWidth() { return false; }

  public function getHeight() { return 150; }

  public function getOnHoverAction() { return false; }
  
  public function getOnOutAction() { return false; }
  
  public function getOnClickAction() { return false; }

  public function getDisplayedLayer() { return false; }

  public function getTileProportion() { return false; }
  
  public function get() { return false; }
}

class TilesLine {

  public function __construct() {
    $this->tiles_array = array();
  }

  public function setAvailableSpace($space) {
    $available_space = $space;
  }

  public function getTilesCount() {
    return count($this->tiles_array);
  }

  public function addTile($tile) {
    array_push($this->tiles_array, $tile);
  }

  public function getLeftSpace() {
    $occupied_space = 0;
    for ($i = 0; $i < count($this->tiles_array); $i++) {
      $occupied_space += $this->tiles_array[$i]->getWidth();
    }
    return $this->available_space - $occupied_space;
  }

  public function tileWillFit($tile) {
    return $this->getLeftSpace() > $tile->getWidth();
  }
  
  public function get() {
	  $r = '<div class="line gallery_div">';
	  
	  for ($i = 0; $i < count($this->tiles_array); $i++) {
	  	  $img_w = $this->tiles_array[$i]->getWidth();
	  	  $extra = '';
	  	  if ($img_w != 150) $extra = ' style="width:'.$img_w.'px"';
		  $r .= '<div class="gallery_div" '.$extra.' onmouseover="'.$this->tiles_array[$i]->getOnHoverAction().'" onmouseout="'.$this->tiles_array[$i]->getOnOutAction().'" onclick="'.$this->tiles_array[$i]->getOnClickAction().'">'.$this->tiles_array[$i]->get().'</div>';
	  }
	  
	  $r .= '</div>';
	  return $r;
  }

  private $tiles_array;
  private $available_space;
}

class TileSingle extends TileBase {

  public function __construct($path) {
    \OC_Log::write(TAG, 'Loading file from path '.$path, \OC_Log::DEBUG);
    $this->file_path = $path;
/*    $this->image = new \OC_Image();
    if (!$this->image->loadFromFile($this->file_path)) {
      \OC_Log::write(TAG, 'Loading file filed', \OC_Log::ERROR);
      return;
    }
    $this->image->fixOrientation();*/
  }

  public function getWidth() {
    $a = ThumbnailsManager::getInstance()->getThumbnailInfo($this->file_path);
    return $a['width'];
  }
  
  public function get($extra = '') {
    return '<a rel="images" href="?app=files&getfile=download.php?file='.urlencode($this->getPath()).'"><img rel="images" src="'.GET_THUMBNAIL_PATH.urlencode($this->getPath()).'" '.$extra.'></a>';
  }
  
  public function getMiniatureSrc() {
	  return GET_THUMBNAIL_PATH.urlencode($this->getPath());
  }

  public function getPath() {
	  return $this->file_path;
  }
  
  public function getOnClickAction() {
	  return '';//'javascript:openFile(\''.$this->file_path.'\');';
  }

  private $file_path;
  private $image;
}

class TileStack extends TileBase {

  const STACK_REPRESENTATIVES = 3;

  public function __construct($path_array, $stack_name) {
    $this->tiles_array = array();
    $this->stack_name = $stack_name;
    for ($i = 0; $i < count($path_array) && $i < self::STACK_REPRESENTATIVES; $i++) {
	  $tile = new TileSingle($path_array[$i]);
      array_push($this->tiles_array, $tile);
    }
  }
  
  public function forceSize($width_must_fit=false) {
	  for ($i = 0; $i < count($this->tiles_array); $i++)
	    $this->tiles_array[$i]->forceSize(true);
  }

  public function getWidth() {
    $max = 0;
    for ($i = 0; $i < count($this->tiles_array); $i++) {
	    $max = max($max, $this->tiles_array[$i]->getWidth());
    }
    return min(IMAGE_WIDTH, $max);
  }

  public function get() {
    $r = '<div class="title gallery_div">'.$this->stack_name.'</div>';
    for ($i = 0; $i < count($this->tiles_array); $i++) {
      $top = rand(-5, 5);
      $left = rand(-5, 5);
      $img_w = $this->tiles_array[$i]->getWidth();
      $extra = '';
      if ($img_w < IMAGE_WIDTH) {
	      $extra = 'width:'.$img_w.'px;';
      }
      $r .= '<div class="miniature_border gallery_div" style="background-image:url(\''.$this->tiles_array[$i]->getMiniatureSrc().'\');margin-top:'.$top.'px; margin-left:'.$left.'px;'.$extra.'"></div>';
    }
    return $r;
  }

  public function getOnHoverAction() {
	  return 'javascript:t(this);return false;';
  }
  
  public function getOnOutAction() {
	  return 'javascript:o(this);return false;';
  }

  public function getCount() {
	  return count($this->tiles_array);
  }
  
  public function getOnClickAction() {
	  return 'javascript:openNewGal(\''.$this->stack_name.'\');';
  }

  private $tiles_array;
  private $stack_name;
}

?>