Factory that provides access to all available preview renderers. More...

Collaboration diagram for ilRendererFactory:

Static Public Member Functions
static	getRenderers ()
	Gets an array containing all available preview renderers. More...

static	getRenderer ($preview)
	Gets the renderer that is able to create a preview for the specified preview object. More...

Static Private Member Functions
static	loadAvailableRenderers ()
	Loads the available preview renderers. More...

Static Private Attributes
static	$renderers = null

Detailed Description

Factory that provides access to all available preview renderers.

Author: Stefan Born stefa.nosp@m.n.bo.nosp@m.rn@ph.nosp@m.zh.c.nosp@m.h

Version: $Id$

Definition at line 14 of file class.ilRendererFactory.php.

Member Function Documentation

◆ getRenderer()

static ilRendererFactory::getRenderer ( $preview )

static

Gets the renderer that is able to create a preview for the specified preview object.

Parameters

ilPReview $preview The preview to get the renderer for.

Returns: ilPreviewRenderer A renderer or null if no renderer matches the preview object.

Definition at line 39 of file class.ilRendererFactory.php.

        {
                $renderers = self::getRenderers();
                
                // check each renderer if it supports that preview object
                foreach ($renderers as $renderer)
                {
                        if ($renderer->supports($preview))      
                        {
                                return $renderer;
                        }                       
                }
                
                // no matching renderer was found
                return null;
        }

References $preview, $renderers, and getRenderers().

Referenced by ilPreview\create(), and ilPreview\hasPreview().

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◆ getRenderers()

static ilRendererFactory::getRenderers ( )

static

Gets an array containing all available preview renderers.

Returns: array All available preview renderers.

Definition at line 27 of file class.ilRendererFactory.php.

        {
                self::loadAvailableRenderers();
                return self::$renderers;
        }

References $renderers, and loadAvailableRenderers().

Referenced by ilObjFileAccessSettingsGUI\editPreviewSettings(), and getRenderer().

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◆ loadAvailableRenderers()

static ilRendererFactory::loadAvailableRenderers ( )

staticprivate

Loads the available preview renderers.

That is built in renderers and plugins.

Returns: array The available renderers.

Definition at line 61 of file class.ilRendererFactory.php.

        {
                // already loaded?
                if (self::$renderers != null)
                        return;
                
                $r = array();
                
                // get registered and active plugins
                global $ilPluginAdmin;
                $pl_names = $ilPluginAdmin->getActivePluginsForSlot(IL_COMP_SERVICE, "Preview", "pvre");
                foreach ($pl_names as $pl)
                {
                        $plugin = ilPluginAdmin::getPluginObject(IL_COMP_SERVICE, "Preview", "pvre", $pl);
                        $r[] = $plugin->getRendererClassInstance();     
                }
                
                // add default renderers
                include_once("./Services/Preview/classes/class.ilImageMagickRenderer.php");
                $r[] = new ilImageMagickRenderer();
                
                include_once("./Services/Preview/classes/class.ilGhostscriptRenderer.php");
                if (ilGhostscriptRenderer::isGhostscriptInstalled())
                        $r[] = new ilGhostscriptRenderer();
                
                self::$renderers = $r;
        }