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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date : 2004-06-04
+ * Description : image plugins loader for image editor.
+ *
+ * Copyright (C) 2004-2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>
+ * Copyright (C) 2004-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software Foundation;
+ * either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * ============================================================ */
+
+// KDE includes.
+
+#include <ktrader.h>
+#include <tdeparts/componentfactory.h>
+#include <tdeapplication.h>
+#include <tdelocale.h>
+#include <kxmlguiclient.h>
+
+// Local includes.
+
+#include "ddebug.h"
+#include "splashscreen.h"
+#include "imagepluginloader.h"
+
+namespace Digikam
+{
+
+// List of obsolete image plugins name.
+
+static const char* ObsoleteImagePluginsList[] =
+{
+ "digikamimageplugin_blowup", // Merged with "Resize" tool since 0.9.2.
+ "digikamimageplugin_solarize", // Renamed "ColorFx" since 0.9.2.
+ "digikamimageplugin_unsharp", // Merged with "Sharpen" tool since 0.9.2.
+ "digikamimageplugin_refocus", // Merged with "Sharpen" tool since 0.9.2.
+ "digikamimageplugin_despeckle", // Renamed "Noise Reduction" since 0.9.2.
+ "-1"
+};
+
+class ImagePluginLoaderPrivate
+{
+
+public:
+
+ typedef TQPair<TQString, ImagePlugin*> PluginType;
+ typedef TQValueList< PluginType > PluginList;
+
+public:
+
+ ImagePluginLoaderPrivate()
+ {
+ splash = 0;
+
+ for (int i=0 ; TQString(ObsoleteImagePluginsList[i]) != TQString("-1") ; i++)
+ obsoleteImagePluginsList << ObsoleteImagePluginsList[i];
+ }
+
+ TQStringList obsoleteImagePluginsList;
+
+ SplashScreen *splash;
+
+ PluginList pluginList;
+};
+
+ImagePluginLoader* ImagePluginLoader::m_instance=0;
+
+ImagePluginLoader* ImagePluginLoader::instance()
+{
+ return m_instance;
+}
+
+ImagePluginLoader::ImagePluginLoader(TQObject *parent, SplashScreen *splash)
+ : TQObject(parent)
+{
+ m_instance = this;
+ d = new ImagePluginLoaderPrivate;
+ d->splash = splash;
+
+ TQStringList imagePluginsList2Load;
+
+ TDETrader::OfferList offers = TDETrader::self()->query("Digikam/ImagePlugin");
+ TDETrader::OfferList::ConstIterator iter;
+
+ for (iter = offers.begin() ; iter != offers.end() ; ++iter)
+ {
+ KService::Ptr service = *iter;
+ if (!d->obsoleteImagePluginsList.contains(service->library()))
+ imagePluginsList2Load.append(service->library());
+ }
+
+ loadPluginsFromList(imagePluginsList2Load);
+}
+
+ImagePluginLoader::~ImagePluginLoader()
+{
+ delete d;
+ m_instance = 0;
+}
+
+void ImagePluginLoader::loadPluginsFromList(const TQStringList& list)
+{
+ if (d->splash)
+ d->splash->message(i18n("Loading Image Plugins"));
+
+ TDETrader::OfferList offers = TDETrader::self()->query("Digikam/ImagePlugin");
+ TDETrader::OfferList::ConstIterator iter;
+
+ int cpt = 0;
+
+ // Load plugin core at the first time.
+
+ for(iter = offers.begin(); iter != offers.end(); ++iter)
+ {
+ KService::Ptr service = *iter;
+ ImagePlugin *plugin;
+
+ if (service->library() == "digikamimageplugin_core")
+ {
+ if (!pluginIsLoaded(service->name()) )
+ {
+ int error=-1;
+ plugin = KParts::ComponentFactory::createInstanceFromService<ImagePlugin>(
+ service, this, service->name().local8Bit(), 0, &error);
+
+ if (plugin && (dynamic_cast<KXMLGUIClient*>(plugin) != 0))
+ {
+ d->pluginList.append(ImagePluginLoaderPrivate::PluginType(service->name(), plugin));
+
+ DDebug() << "ImagePluginLoader: Loaded plugin " << service->name() << endl;
+
+ ++cpt;
+ }
+ else
+ {
+ DWarning() << "ImagePluginLoader:: createInstanceFromLibrary returned 0 for "
+ << service->name()
+ << " (" << service->library() << ")"
+ << " with error code "
+ << error << endl;
+ if (error == KParts::ComponentFactory::ErrNoLibrary)
+ DWarning() << "KLibLoader says: "
+ << KLibLoader::self()->lastErrorMessage() << endl;
+ }
+ }
+ break;
+ }
+ }
+
+ // Load all other image plugins after (make a coherant menu construction in Image Editor).
+
+ for (iter = offers.begin(); iter != offers.end(); ++iter)
+ {
+ KService::Ptr service = *iter;
+ ImagePlugin *plugin;
+
+ if (!list.contains(service->library()) && service->library() != "digikamimageplugin_core")
+ {
+ if ((plugin = pluginIsLoaded(service->name())) != NULL)
+ d->pluginList.remove(ImagePluginLoaderPrivate::PluginType(service->name(),plugin));
+ }
+ else
+ {
+ if( pluginIsLoaded(service->name()) )
+ continue;
+ else
+ {
+ int error=-1;
+ plugin = KParts::ComponentFactory::createInstanceFromService<ImagePlugin>(
+ service, this, service->name().local8Bit(), 0);
+
+ if (plugin && (dynamic_cast<KXMLGUIClient*>(plugin) != 0))
+ {
+ d->pluginList.append(ImagePluginLoaderPrivate::PluginType(service->name(), plugin));
+
+ DDebug() << "ImagePluginLoader: Loaded plugin " << service->name() << endl;
+
+ ++cpt;
+ }
+ else
+ {
+ DWarning() << "ImagePluginLoader:: createInstanceFromLibrary returned 0 for "
+ << service->name()
+ << " (" << service->library() << ")"
+ << " with error code "
+ << error << endl;
+ if (error == KParts::ComponentFactory::ErrNoLibrary)
+ DWarning() << "KLibLoader says: "
+ << KLibLoader::self()->lastErrorMessage() << endl;
+ }
+ }
+ }
+ }
+
+ d->splash = 0; // Splashcreen is only lanched at the first time.
+ // If user change plugins list to use in setup, don't try to
+ // use the old splashscreen instance.
+}
+
+ImagePlugin* ImagePluginLoader::pluginIsLoaded(const TQString& name)
+{
+ if ( d->pluginList.isEmpty() )
+ return 0;
+
+ for (ImagePluginLoaderPrivate::PluginList::iterator it = d->pluginList.begin();
+ it != d->pluginList.end(); ++it)
+ {
+ if ((*it).first == name )
+ return (*it).second;
+ }
+
+ return 0;
+}
+
+ImagePlugin* ImagePluginLoader::pluginInstance(const TQString& libraryName)
+{
+ TDETrader::OfferList offers = TDETrader::self()->query("Digikam/ImagePlugin");
+ TDETrader::OfferList::ConstIterator iter;
+
+ for(iter = offers.begin(); iter != offers.end(); ++iter)
+ {
+ KService::Ptr service = *iter;
+
+ if(service->library() == libraryName)
+ {
+ return ( pluginIsLoaded(service->name()) );
+ }
+ }
+
+ return 0;
+}
+
+bool ImagePluginLoader::pluginLibraryIsLoaded(const TQString& libraryName)
+{
+ TDETrader::OfferList offers = TDETrader::self()->query("Digikam/ImagePlugin");
+ TDETrader::OfferList::ConstIterator iter;
+
+ for(iter = offers.begin(); iter != offers.end(); ++iter)
+ {
+ KService::Ptr service = *iter;
+
+ if(service->library() == libraryName)
+ {
+ if( pluginIsLoaded(service->name()) )
+ return true;
+ }
+ }
+
+ return false;
+}
+
+TQPtrList<ImagePlugin> ImagePluginLoader::pluginList()
+{
+ TQPtrList<ImagePlugin> list;
+
+ for (ImagePluginLoaderPrivate::PluginList::iterator it = d->pluginList.begin();
+ it != d->pluginList.end(); ++it)
+ {
+ list.append((*it).second);
+ }
+
+ return list;
+}
+
+} // namespace Digikam
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