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// pkg_columnizer.h -*-c++-*-
//
// Copyright 1999-2002, 2004-2005, 2007 Daniel Burrows
// Copyright 2012-2015 Manuel A. Fernandez Montecelo
//
// 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_COLUMNIZER_H
#define PKG_COLUMNIZER_H
#include "pkg_item.h"
#include <cwidget/config/column_definition.h>
/** \brief pkg_columnizer class and associated data
*
*
* The rather hefty pkg_columnizer class and associated data (eg, info about
* column sizes) lives here.
*
* \file pkg_columnizer.h
*/
class pkg_item::pkg_columnizer : public cwidget::config::column_generator
{
class pkg_genheaders;
pkgCache::PkgIterator pkg;
pkgCache::VerIterator visible_ver;
static cwidget::config::column_definition_list *columns;
int basex;
// Set up the translated format widths.
static void init_formatting();
protected:
const pkgCache::PkgIterator &get_pkg() {return pkg;}
const pkgCache::VerIterator &get_visible_ver() {return visible_ver;}
public:
static cwidget::column_disposition setup_column(const pkgCache::PkgIterator &pkg,
const pkgCache::VerIterator &ver,
int basex,
int type);
virtual cwidget::column_disposition setup_column(int type);
static const cwidget::config::column_definition_list &get_columns()
{
setup_columns();
return *columns;
}
enum types {name, installed_size, debsize, stateflag, actionflag,
description, currver, candver, longstate, longaction,
maintainer, priority, shortpriority, section, revdepcount,
autoset, tagged, archive, sizechange,
progname, progver, brokencount, diskusage, downloadsize,
pin_priority, hostname, trust_state, numtypes};
static cwidget::config::column_type_defaults defaults[numtypes];
static const char *column_names[numtypes];
static const char *default_pkgdisplay;
// The default values for the package column formatting.
static int parse_column_type(char id);
/** Check for errors, typically from variables (which can be configured or
* specified in the command line with -o):
*
* ::UI::Package-Display-Format,
* ::UI::Package-Header-Format,
* ::UI::Package-Status-Format,
* ::CmdLine::Package-Display-Format and
* ::CmdLine::Version-Display-Format
*
* The format string can also be specified for commands like "search" and
* "versions" with '-F'.
*
* The string when displaying columns should not contain newlines or \n,
* because they do not make sense for formatting which columns to show, and in
* that case cwidget fails with an assertion:
*
* Uncaught exception: ../../../src/cwidget/columnify.h:64: cwidget::column::column(const cwidget::column_disposition&, int, bool, bool): Assertion "_width>=0" failed.
*
* For safety, '\' and control characters are forbidden at the time of writing
* this, because they also do not make sense in this kind of formatting
* string.
*
* @display_format Format string to be parsed
*
* @cfg_option_name Name, to be able to tell back which string was wrong
*
* @return Whether the string is safe to use or not
*/
static bool check_valid_display_format(const std::string& display_format, const std::string& cfg_option_name);
static void setup_columns(bool force_update=false);
// This reads and sets up the necessary information about how to format the
// display of packages.
static std::wstring format_column_names(unsigned int width);
// Returns a string which can serve as a header for the column-name
// information for a screen of the given width.
int get_basex() {return basex;}
pkg_columnizer(const pkgCache::PkgIterator &_pkg,
const pkgCache::VerIterator &_visible_ver,
const cwidget::config::column_definition_list &_columns,
int _basex)
: column_generator(_columns),
pkg(_pkg),
visible_ver(_visible_ver),
basex(_basex)
{
}
};
#endif
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