File indexing completed on 2024-04-14 15:01:15

 /**
  * Copyright (C) 2011 by Koos Vriezen <koos.vriezen@gmail.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License version 2 as published by the Free Software Foundation.
  *
  *  This library 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
  *  Library General Public License for more details.
  *
  *  You should have received a copy of the GNU Library General Public License
  *  along with this library; see the file COPYING.LIB.  If not, write to
  *  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  *  Boston, MA 02110-1301, USA.
  **/
 
 #include "playmodel.h"
 #include "playlistview.h"
 
 #include <qpixmap.h>
 #include <qtimer.h>
 
 #include <klocalizedstring.h>
 #include <kiconloader.h>
 
 using namespace KMPlayer;
 
 TopPlayItem *PlayItem::rootItem ()
 {
     PlayItem *r = NULL;
     for (PlayItem *p = this; p->parent_item; p = p->parent_item)
         r = p;
     return static_cast <TopPlayItem *> (r);
 }
 
 Qt::ItemFlags TopPlayItem::itemFlags ()
 {
     Qt::ItemFlags itemflags = Qt::ItemIsSelectable | Qt::ItemIsUserCheckable | Qt::ItemIsEnabled;
     if (root_flags & PlayModel::AllowDrag)
         itemflags |= Qt::ItemIsDragEnabled;
     if (root_flags & PlayModel::InPlaceEdit)
         itemflags |= Qt::ItemIsEditable;
     return itemflags;
 }
 
 //-----------------------------------------------------------------------------
 
 struct KMPLAYER_NO_EXPORT TreeUpdate {
     KDE_NO_CDTOR_EXPORT TreeUpdate (TopPlayItem *ri, NodePtr n, bool s, bool o, SharedPtr <TreeUpdate> &nx) : root_item (ri), node (n), select (s), open (o), next (nx) {}
     KDE_NO_CDTOR_EXPORT ~TreeUpdate () {}
     TopPlayItem * root_item;
     NodePtrW node;
     bool select;
     bool open;
     SharedPtr <TreeUpdate> next;
 };
 
 PlayModel::PlayModel (QObject *parent, KIconLoader *loader)
   : QAbstractItemModel (parent),
     auxiliary_pix (loader->loadIcon (QString ("folder-grey"), KIconLoader::Small)),
     config_pix (loader->loadIcon (QString ("configure"), KIconLoader::Small)),
     folder_pix (loader->loadIcon (QString ("folder"), KIconLoader::Small)),
     img_pix (loader->loadIcon (QString ("image-png"), KIconLoader::Small)),
     info_pix (loader->loadIcon (QString ("dialog-info"), KIconLoader::Small)),
     menu_pix (loader->loadIcon (QString ("view-media-playlist"), KIconLoader::Small)),
     unknown_pix (loader->loadIcon (QString ("unknown"), KIconLoader::Small)),
     url_pix (loader->loadIcon (QString ("internet-web-browser"), KIconLoader::Small)),
     video_pix (loader->loadIcon (QString ("video-x-generic"), KIconLoader::Small)),
     root_item (new PlayItem ((Node *)NULL, NULL)),
     last_id (0)
 {
     TopPlayItem *ritem = new TopPlayItem (this,
             0, NULL, PlayModel::AllowDrops | PlayModel::TreeEdit);
     ritem->parent_item = root_item;
     root_item->child_items.append (ritem);
     ritem->icon = url_pix;
 }
 
 PlayModel::~PlayModel ()
 {
     delete root_item;
 }
 
 QVariant PlayModel::data (const QModelIndex &index, int role) const
 {
     if (!index.isValid ())
         return QVariant ();
 
     PlayItem *item = static_cast<PlayItem*> (index.internalPointer ());
     switch (role) {
     case Qt::DisplayRole:
         return item->title;
 
     case Qt::DecorationRole:
         if (item->parent () == root_item)
             return static_cast <TopPlayItem *> (item)->icon;
         if (item->attribute)
             return config_pix;
         if (item->childCount() > 0)
             if (item->child (0)->attribute)
                 return menu_pix;
         if (item->node) {
             Node::PlayType pt = item->node->playType ();
             switch (pt) {
             case Node::play_type_image:
                 return img_pix;
             case Node::play_type_info:
                 return info_pix;
             default:
                 if (pt > Node::play_type_none)
                     return video_pix;
                 else
                     return item->childCount ()
                         ? item->node->auxiliaryNode ()
                           ? auxiliary_pix : folder_pix
                           : unknown_pix;
             }
         }
         return unknown_pix;
 
     case UrlRole:
         if (item->node) {
             Mrl *mrl = item->node->mrl ();
             if (mrl && !mrl->src.isEmpty ())
                 return mrl->src;
         }
         return QVariant ();
 
     case Qt::EditRole:
         if (item->item_flags & Qt::ItemIsEditable)
             return item->title;
 
     default:
         return QVariant ();
     }
 }
 
 bool PlayModel::setData (const QModelIndex& i, const QVariant& v, int role)
 {
     if (role != Qt::EditRole || !i.isValid ())
         return false;
 
     bool changed = false;
     PlayItem *item = static_cast <PlayItem *> (i.internalPointer ());
     QString ntext = v.toString ();
 
     TopPlayItem *ri = item->rootItem ();
     if (ri->show_all_nodes && item->attribute) {
         int pos = ntext.indexOf (QChar ('='));
         if (pos > -1) {
             item->attribute->setName (ntext.left (pos));
             item->attribute->setValue (ntext.mid (pos + 1));
         } else {
             item->attribute->setName (ntext);
             item->attribute->setValue (QString (""));
         }
         PlayItem *pi = item->parent ();
         if (pi && pi->node) {
             pi->node->document ()->m_tree_version++;
             pi->node->closed ();
         }
         changed = true;
     } else if (item->node) {
         PlaylistRole *title = (PlaylistRole *) item->node->role (RolePlaylist);
         if (title && !ri->show_all_nodes && title->editable) {
             if (ntext.isEmpty ()) {
                 ntext = item->node->mrl ()
                     ? item->node->mrl ()->src
                     : title->caption ();
                 changed = true;
             }
             if (title->caption () != ntext) {
                 item->node->setNodeName (ntext);
                 item->node->document ()->m_tree_version++;
                 ntext = title->caption ();
                 changed = true;
             }
             //} else { // restore damage ..
             // cannot update because of crashing, shouldn't get here anyhow
             //updateTree (ri, item->node, true);
         }
     }
 
     if (changed) {
         item->title = ntext;
         emit dataChanged (i, i);
         return true;
     }
     return false;
 }
 
 Qt::ItemFlags PlayModel::flags (const QModelIndex &index) const
 {
     if (!index.isValid ())
         return 0;
 
     return static_cast<PlayItem*>(index.internalPointer())->item_flags;
 }
 
 QVariant PlayModel::headerData (int, Qt::Orientation, int) const
 {
     return QVariant ();
 }
 
 QModelIndex PlayModel::index (int row, int col, const QModelIndex &parent) const
 {
     if (!hasIndex(row, col, parent))
         return QModelIndex();
 
     PlayItem *parent_item;
 
     if (!parent.isValid())
         parent_item = root_item;
     else
         parent_item = static_cast<PlayItem*>(parent.internalPointer());
 
     PlayItem *childItem = parent_item->child (row);
     if (childItem)
         return createIndex (row, col, childItem);
     else
         return QModelIndex();
 }
 
 QModelIndex PlayModel::indexFromItem (PlayItem *item) const
 {
     if (!item || item == root_item)
         return QModelIndex();
 
     return createIndex (item->row(), 0, item);
 }
 
 PlayItem *PlayModel::itemFromIndex (const QModelIndex& index) const
 {
     if (!index.isValid ())
         return NULL;
     return static_cast <PlayItem*> (index.internalPointer ());
 }
 
 QModelIndex PlayModel::parent (const QModelIndex &index) const
 {
     if (!index.isValid())
         return QModelIndex();
 
     PlayItem *childItem = static_cast <PlayItem*> (index.internalPointer ());
     PlayItem *parent_item = childItem->parent ();
 
     if (parent_item == root_item)
         return QModelIndex ();
 
     return createIndex (parent_item->row(), 0, parent_item);
 }
 
 bool PlayModel::hasChildren (const QModelIndex& parent) const
 {
     if (parent.column() > 0)
         return false;
 
     if (!parent.isValid())
         return root_item->childCount();
 
     PlayItem *pitem = static_cast<PlayItem*>(parent.internalPointer());
     int count = pitem->childCount();
     if (!count
             && pitem->parent_item == root_item
             && static_cast <TopPlayItem *> (pitem)->id > 0
             && !pitem->node->mrl()->resolved) {
         return true;
     }
     return count;
 }
 
 int PlayModel::rowCount (const QModelIndex &parent) const
 {
     if (parent.column() > 0)
         return 0;
 
     if (!parent.isValid())
         return root_item->childCount();
 
     PlayItem *pitem = static_cast<PlayItem*>(parent.internalPointer());
     int count = pitem->childCount();
     if (!count && pitem->parent_item == root_item) {
         TopPlayItem *ritem = static_cast <TopPlayItem *> (pitem);
         if (ritem->id > 0 && !pitem->node->mrl()->resolved) {
             pitem->node->defer ();
             if (!pitem->node->mrl()->resolved)
                 return 0;
             PlayItem *curitem = 0L;
             ritem->model->populate (ritem->node, 0, ritem, 0L, &curitem);
             count = ritem->childCount();
             if (count) {
                 ritem->model->beginInsertRows (parent, 0, count-1);
                 ritem->model->endInsertRows ();
             }
         }
     }
     return count;
 }
 
 int PlayModel::columnCount (const QModelIndex&) const
 {
     return 1;
 }
 
 void dumpTree( PlayItem *p, const QString &indent ) {
     qDebug( "%s%s", qPrintable(indent),qPrintable(p->title));
     for (int i=0; i < p->childCount(); i++)
         dumpTree(p->child(i), indent+"  ");
 }
 
 void TopPlayItem::add ()
 {
     model->beginInsertRows (QModelIndex(), id, id);
 
     parent_item = model->root_item;
     if (id >= model->root_item->childCount ())
         model->root_item->child_items.append (this);
     else
         model->root_item->child_items.insert (id, this);
 
     model->endInsertRows();
 
     if (id !=row())
         qWarning("Invalid root tree");
 }
 
 void TopPlayItem ::remove ()
 {
     model->beginRemoveRows (QModelIndex (), id, id);
     if (id < parent_item->childCount ())
         parent_item->child_items.takeAt (id);
     else
         qWarning( "TopPlayItem::remove");
     model->endRemoveRows();
 }
 
 PlayItem *PlayModel::populate (Node *e, Node *focus,
         TopPlayItem *root, PlayItem *pitem,
         PlayItem ** curitem)
 {
     root->have_dark_nodes |= !e->role (RolePlaylist);
     if (pitem && !root->show_all_nodes && !e->role (RolePlaylist)) {
         for (Node *c = e->firstChild (); c; c = c->nextSibling ())
             populate (c, focus, root, pitem, curitem);
         return pitem;
     }
     PlayItem *item = root;
     if (pitem) {
         item = new PlayItem (e, pitem);
         pitem->appendChild (item);
     }
     item->item_flags |= root->itemFlags ();
     PlaylistRole *title = (PlaylistRole *) e->role (RolePlaylist);
     QString text (title ? title->caption () : "");
     if (text.isEmpty ()) {
         text = id_node_text == e->id ? e->nodeValue () : e->nodeName ();
         if (e->isDocument ())
             text = e->hasChildNodes () ? i18n ("unnamed") : i18n ("none");
     }
     item->title = text;
     if (title && !root->show_all_nodes && title->editable)
         item->item_flags |= Qt::ItemIsEditable;
     if (focus == e)
         *curitem = item;
     //if (e->active ())
         //scrollToItem (item);
     for (Node *c = e->firstChild (); c; c = c->nextSibling ())
         populate (c, focus, root, item, curitem);
     if (e->isElementNode ()) {
         Attribute *a = static_cast <Element *> (e)->attributes ().first ();
         if (a) {
             root->have_dark_nodes = true;
             if (root->show_all_nodes) {
                 PlayItem *as = new PlayItem (e, item);
                 item->appendChild (as);
                 as->title = i18n ("[attributes]");
                 for (; a; a = a->nextSibling ()) {
                     PlayItem * ai = new PlayItem (a, as);
                     as->appendChild (ai);
                     //pitem->setFlags(root->itemFlags() &=~Qt::ItemIsDragEnabled);
                     if (root->id > 0)
                         ai->item_flags |= Qt::ItemIsEditable;
                     ai->title = QString ("%1=%2").arg (
                                 a->name ().toString ()).arg (a->value ());
                 }
             }
         }
     }
         //if (root->flags & PlayModel::AllowDrag)
         //    item->setDragEnabled (true);
     return item;
 }
 
 int PlayModel::addTree (NodePtr doc, const QString &source, const QString &icon, int flags) {
     TopPlayItem *ritem = new TopPlayItem(this, ++last_id, doc, flags);
     ritem->source = source;
     ritem->icon = KIconLoader::global ()->loadIcon (icon, KIconLoader::Small);
     PlayItem *curitem = 0L;
     populate (doc, 0, ritem, 0L, &curitem);
     ritem->add ();
     return last_id;
 }
 
 void PlayModel::updateTree (int id, NodePtr root, NodePtr active,
         bool select, bool open) {
     // TODO, if root is same as rootitems->node and treeversion is the same
     // and show all nodes is unchanged then only update the cells
     int root_item_count = root_item->childCount ();
     TopPlayItem *ritem = NULL;
     if (id == -1) { // wildcard id
         for (int i = 0; i < root_item_count; ++i) {
             ritem = static_cast<TopPlayItem*>(root_item->child (i));
             for (NodePtr n = root; n; n = n->parentNode ())
                 if (n == ritem->node) {
                     root = n;
                     break;
                 }
             if (root == ritem->node) {
                 id = ritem->id;
                 break;  // found based on matching (ancestor) node
             }
         }
     } else if (id < root_item_count) {
         ritem = static_cast<TopPlayItem*>(root_item->child (id));
         if (!root)
             root = ritem->node;
     }
     if (ritem) {
         ritem->node = root;
         bool need_timer = !tree_update;
         tree_update = new TreeUpdate (ritem, active, select, open, tree_update);
         if (need_timer)
             QTimer::singleShot (0, this, SLOT (updateTrees ()));
     } else
         qDebug ("updateTree root item not found");
 }
 
 KDE_NO_EXPORT void PlayModel::updateTrees () {
     for (; tree_update; tree_update = tree_update->next) {
         emit updating (indexFromItem (tree_update->root_item));
         PlayItem *cur = updateTree (tree_update->root_item, tree_update->node);
         emit updated (indexFromItem (tree_update->root_item),
                 indexFromItem (cur), tree_update->select, tree_update->open);
     }
 }
 
 PlayItem *PlayModel::updateTree (TopPlayItem *ritem, NodePtr active) {
     PlayItem *curitem = 0L;
 
     ritem->remove ();
     ritem->deleteChildren ();
     if (ritem->node) {
         if (!ritem->show_all_nodes)
             for (NodePtr n = active; n; n = n->parentNode ()) {
                 active = n;
                 if (n->role (RolePlaylist))
                     break;
             }
         populate (ritem->node, active, ritem, 0L, &curitem);
     }
     ritem->add ();
 
     return curitem;
 }
 
 
 #include <stdio.h>