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// pkg_subtree.h (this is -*-c++-*-)
//
// Copyright 1999-2002, 2004-2005, 2007-2008 Daniel Burrows
//
// 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; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
//
#ifndef PKG_SUBTREE_H
#define PKG_SUBTREE_H
#include <cwidget/widgets/subtree.h>
#include "pkg_node.h"
/** \brief A subtree which contains packages (and other subtrees)
*
* \file pkg_subtree.h
*/
class pkg_subtree:public cwidget::widgets::subtree<pkg_tree_node>,
public pkg_tree_node
{
std::wstring name;
std::wstring description; // This is like a Description: field.
sigc::signal1<void, std::wstring> *info_signal;
pkg_subtree *num_packages_parent;
bool num_packages_known;
int num_packages;
void do_highlighted_changed(bool highlighted);
protected:
void set_label(const std::wstring &_name) {name=_name;}
public:
pkg_subtree(std::wstring _name, std::wstring _description=L"",
sigc::signal1<void, std::wstring> *_info_signal=NULL,
bool _expanded=false):
cwidget::widgets::subtree<pkg_tree_node>(_expanded), name(_name),
description(_description), info_signal(_info_signal),
num_packages_parent(NULL),
num_packages_known(true), num_packages(0)
{
highlighted_changed.connect(sigc::mem_fun(this, &pkg_subtree::do_highlighted_changed));
}
pkg_subtree(std::wstring _name, bool _expanded):
cwidget::widgets::subtree<pkg_tree_node>(_expanded), name(_name),
description(L""), info_signal(NULL),
num_packages_parent(NULL),
num_packages_known(true), num_packages(0)
{
highlighted_changed.connect(sigc::mem_fun(this, &pkg_subtree::do_highlighted_changed));
}
virtual void paint(cwidget::widgets::tree *win, int y, bool hierarchical,
const cwidget::style &st);
virtual const wchar_t *tag();
virtual const wchar_t *label();
virtual void select(undo_group *undo);
virtual void hold(undo_group *undo);
virtual void keep(undo_group *undo);
virtual void remove(undo_group *undo);
virtual void purge(undo_group *undo);
virtual void reinstall(undo_group *undo);
virtual void set_auto(bool isauto, undo_group *undo);
/** \brief Set the parent of this tree for the purposes of package counting.
*
* When inc_num_packages() is called on this tree, it's also called
* on the parent.
*/
void set_num_packages_parent(pkg_subtree *new_parent)
{
num_packages_parent = new_parent;
}
/** \brief Increment the number of packages in this tree and
* in the parent (if any).
*
* Has no effect if num_packages_known is false.
*/
void inc_num_packages();
/** \brief Discard all information about how many packages
* this subtree contains.
*/
void clear_num_packages();
/** \brief Set the number of packages that this subtree
* contains.
*/
void set_num_packages(int num);
bool get_num_packages_known() const { return num_packages_known; }
int get_num_packages() const { return num_packages; }
std::wstring get_name() {return name;}
std::wstring get_description() {return description;}
bool dispatch_key(const cwidget::config::key &k, cwidget::widgets::tree *owner);
};
#endif
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