1 files changed, 200 insertions, 0 deletions
diff --git a/akregator/src/simplenodeselector.cpp b/akregator/src/simplenodeselector.cpp
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+++ b/akregator/src/simplenodeselector.cpp
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+/*
+    This file is part of Akregator.
+
+    Copyright (C) 2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
+
+    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 of the License, 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.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+    As a special exception, permission is given to link this program
+    with any edition of Qt, and distribute the resulting executable,
+    without including the source code for Qt in the source distribution.
+*/
+
+#include "feedlist.h"
+#include "folder.h"
+#include "simplenodeselector.h"
+#include "treenode.h"
+#include "treenodevisitor.h"
+
+#include <klistview.h>
+#include <klocale.h>
+
+#include <qlayout.h>
+#include <qmap.h>
+#include <qwidget.h>
+
+namespace Akregator
+{
+
+class SelectNodeDialog::SelectNodeDialogPrivate
+{
+    public:
+    SimpleNodeSelector* widget;
+};
+
+SelectNodeDialog::SelectNodeDialog(FeedList* feedList, QWidget* parent, char* name) : 
+ KDialogBase(parent, name, true, i18n("Select Feed or Folder"),
+                  KDialogBase::Ok|KDialogBase::Cancel, KDialogBase::Ok, true), d(new SelectNodeDialogPrivate)
+{
+    d->widget = new SimpleNodeSelector(feedList, this);
+
+    connect(d->widget, SIGNAL(signalNodeSelected(TreeNode*)), this, SLOT(slotNodeSelected(TreeNode*)));
+
+    setMainWidget(d->widget);
+    enableButtonOK(false);
+}
+
+SelectNodeDialog::~SelectNodeDialog()
+{
+    delete d;
+    d = 0;
+}
+
+TreeNode* SelectNodeDialog::selectedNode() const
+{
+    return d->widget->selectedNode();
+}
+
+void SelectNodeDialog::slotSelectNode(TreeNode* node)
+{
+    d->widget->slotSelectNode(node);
+}
+
+void SelectNodeDialog::slotNodeSelected(TreeNode* node)
+{
+    enableButtonOK(node != 0);
+}
+
+
+class SimpleNodeSelector::SimpleNodeSelectorPrivate
+{
+    public:
+    KListView* view;
+    FeedList* list;
+    NodeVisitor* visitor;
+    QMap<TreeNode*,QListViewItem*> nodeToItem;
+    QMap<QListViewItem*, TreeNode*> itemToNode;
+};
+
+class SimpleNodeSelector::NodeVisitor : public TreeNodeVisitor
+{
+    public:
+
+    NodeVisitor(SimpleNodeSelector* view) : TreeNodeVisitor(), m_view(view) {}
+
+    void createItems(TreeNode* node)
+    {
+        node->accept(this);
+    }
+
+    virtual bool visitFolder(Folder* node)
+    {
+        visitTreeNode(node);
+        QValueList<TreeNode*> children = node->children();
+        m_view->d->nodeToItem[node]->setExpandable(true);
+        for (QValueList<TreeNode*>::ConstIterator it = children.begin(); it != children.end(); ++it)
+             createItems(*it);
+        return true;
+    }
+
+    virtual bool visitTreeNode(TreeNode* node)
+    {
+        QListViewItem* pi = node->parent() ? m_view->d->nodeToItem[node->parent()] : 0;
+         
+        KListViewItem* item = 0;
+        if (pi != 0)
+             item = new KListViewItem(pi, node->title());
+        else
+             item = new KListViewItem(m_view->d->view, node->title());
+        item->setExpandable(false);
+        m_view->d->nodeToItem.insert(node, item);
+        m_view->d->itemToNode.insert(item, node);
+        connect(node, SIGNAL(signalDestroyed(TreeNode*)), m_view, SLOT(slotNodeDestroyed(TreeNode*)));
+        return true;
+    }
+
+    private:
+
+    SimpleNodeSelector* m_view;
+};
+
+
+SimpleNodeSelector::SimpleNodeSelector(FeedList* feedList, QWidget* parent, const char* name) : QWidget(parent, name), d(new SimpleNodeSelectorPrivate)
+{
+    d->list = feedList;
+    connect(feedList, SIGNAL(signalDestroyed(FeedList*)), this, SLOT(slotFeedListDestroyed(FeedList*)));
+
+    d->view = new KListView(this);
+    d->view->setRootIsDecorated(true);
+    d->view->addColumn(i18n("Feeds"));
+    
+    connect(d->view, SIGNAL(selectionChanged(QListViewItem*)), this, SLOT(slotItemSelected(QListViewItem*)));
+
+    QGridLayout* layout = new QGridLayout(this, 1, 1);
+    layout->addWidget(d->view, 0, 0);
+
+    d->visitor = new NodeVisitor(this);
+
+    d->visitor->createItems(d->list->rootNode());
+    d->nodeToItem[d->list->rootNode()]->setOpen(true);
+    d->view->ensureItemVisible(d->nodeToItem[d->list->rootNode()]);
+}
+
+SimpleNodeSelector::~SimpleNodeSelector()
+{
+    delete d->visitor;
+    delete d;
+    d = 0;
+}
+
+TreeNode* SimpleNodeSelector::selectedNode() const
+{
+    return d->itemToNode[d->view->selectedItem()];
+}
+
+void SimpleNodeSelector::slotSelectNode(TreeNode* node)
+{
+    QListViewItem* item = d->nodeToItem[node];
+    if (item != 0)
+        d->view->setSelected(item, true);
+}
+
+void SimpleNodeSelector::slotFeedListDestroyed(FeedList* /*list*/)
+{
+    d->nodeToItem.clear();
+    d->itemToNode.clear();
+    d->view->clear();
+}
+
+void SimpleNodeSelector::slotItemSelected(QListViewItem* item)
+{
+    emit signalNodeSelected(d->itemToNode[item]);
+}
+
+void SimpleNodeSelector::slotNodeDestroyed(TreeNode* node)
+{
+    if (d->nodeToItem.contains(node))
+    {
+        QListViewItem* item = d->nodeToItem[node];
+        d->nodeToItem.remove(node);
+        d->itemToNode.remove(item);
+        delete item;
+    }
+}
+
+} // namespace Akregator
+
+#include "simplenodeselector.moc"
+