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// pkg_ver_item.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_VER_ITEM_H
#define PKG_VER_ITEM_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "apt_info_tree.h"
#include "pkg_columnizer.h"
#include "pkg_node.h"
#include "pkg_grouppolicy.h"
#include "pkg_item_with_subtree.h"
#include <apt-pkg/version.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/pkgsystem.h>
/** \brief Let you create tree nodes which refer to a particular version of a package.
*
* \file pkg_ver_item.h
*/
class pkg_ver_columnizer:public pkg_item::pkg_columnizer
{
bool show_pkg_name;
public:
static cwidget::column_disposition setup_column(const pkgCache::VerIterator &ver,
bool show_pkg_name,
int basex,
int type);
cwidget::column_disposition setup_column(int type);
pkg_ver_columnizer(const pkgCache::VerIterator &_ver,
bool _show_pkg_name,
const cwidget::config::column_definition_list &_columns,
int _basex):
pkg_item::pkg_columnizer(_ver.ParentPkg(), _ver, _columns, _basex),
show_pkg_name(_show_pkg_name)
{
}
};
class pkg_ver_item:public pkg_tree_node
{
pkgCache::VerIterator version;
/** Stores the name of this version to avoid problems that can arise
* with cwidget::util::transcode().
*/
std::wstring version_name;
bool show_pkg_name;
pkg_signal *sig;
void do_highlighted_changed(bool highlighted);
public:
pkg_ver_item(const pkgCache::VerIterator &_version, pkg_signal *_sig,
bool _show_pkg_name=false);
pkgCache::PkgIterator get_package() const {return version.ParentPkg();}
const pkgCache::VerIterator &get_version() const {return version;}
virtual cwidget::style get_normal_style();
virtual cwidget::style get_highlighted_style();
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);
virtual void forbid_version(undo_group *undo);
void show_information();
bool dispatch_key(const cwidget::config::key &k, cwidget::widgets::tree *owner);
pkg_ver_item *get_sig();
static cwidget::style ver_style(pkgCache::VerIterator version,
bool highlighted);
// Menu redirections:
bool package_forbid_enabled();
bool package_forbid();
bool package_changelog_enabled();
bool package_changelog();
bool package_information_enabled();
bool package_information();
};
class versort:public cwidget::widgets::sortpolicy
{
pkg_name_lt plt;
public:
bool operator()(cwidget::widgets::treeitem *item1, cwidget::widgets::treeitem *item2)
{
// FIXME: this is horrible.
const pkg_ver_item *pitem1=dynamic_cast<const pkg_ver_item *>(item1);
const pkg_ver_item *pitem2=dynamic_cast<const pkg_ver_item *>(item2);
if(pitem1 && pitem2)
{
if(pitem1->get_version().ParentPkg()!=pitem2->get_version().ParentPkg())
return plt(pitem1->get_version().ParentPkg(),
pitem2->get_version().ParentPkg());
return _system->VS->CmpVersion(pitem1->get_version().VerStr(),
pitem2->get_version().VerStr()) < 0;
}
else
return false; // we shouldn't get here!
}
};
typedef pkg_item_with_subtree<pkg_ver_item, versort> pkg_vertree;
class pkg_vertree_generic:public cwidget::widgets::subtree<pkg_ver_item, versort>
{
std::wstring name;
int num_versions;
public:
pkg_vertree_generic(std::wstring _name, bool _expanded)
: cwidget::widgets::subtree<pkg_ver_item, versort>(_expanded),
name(_name),
num_versions(0)
{
}
void paint(cwidget::widgets::tree *win, int y, bool hierarchical, const cwidget::style &st);
const wchar_t *tag() {return name.c_str();}
const wchar_t *label() {return name.c_str();}
void inc_num_versions() { ++num_versions; }
};
// The following policy will make each package given to it into a
// subtree containing all versions of the package known to apt-pkg.
class pkg_grouppolicy_ver_factory:public pkg_grouppolicy_factory
{
public:
virtual pkg_grouppolicy *instantiate(pkg_signal *sig, desc_signal *desc_sig);
};
// The next class displays the available versions of a single package.
// It takes over the screen when instantiated and returns to the previous
// screen when finished.
class pkg_ver_screen:public apt_info_tree
{
protected:
virtual cwidget::widgets::treeitem *setup_new_root(const pkgCache::PkgIterator &pkg,
const pkgCache::VerIterator &ver);
pkg_ver_screen(const pkgCache::PkgIterator &pkg);
public:
static cwidget::util::ref_ptr<pkg_ver_screen> create(const pkgCache::PkgIterator &pkg)
{
cwidget::util::ref_ptr<pkg_ver_screen> rval(new pkg_ver_screen(pkg));
rval->decref();
return rval;
}
};
typedef cwidget::util::ref_ptr<pkg_ver_screen> pkg_ver_screen_ref;
void setup_package_versions(const pkgCache::PkgIterator &pkg, pkg_vertree *tree, pkg_signal *sig);
void setup_package_versions(const pkgCache::PkgIterator &pkg, pkg_vertree_generic *tree, pkg_signal *sig);
// Adds all versions of a package to the given tree.
#endif
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