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// solution_dialog.cc
//
// Copyright (C) 2005, 2007, 2009 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.
#include "solution_dialog.h"
#include "solution_fragment.h"
#include "ui.h"
#include <aptitude.h>
#include <cwidget/config/colors.h>
#include <cwidget/config/keybindings.h>
#include <cwidget/fragment.h>
#include <cwidget/widgets/button.h>
#include <cwidget/widgets/center.h>
#include <cwidget/widgets/frame.h>
#include <cwidget/widgets/scrollbar.h>
#include <cwidget/widgets/table.h>
#include <cwidget/widgets/text_layout.h>
#include <cwidget/toplevel.h>
#include <generic/apt/apt.h>
#include <generic/apt/aptitude_resolver_universe.h>
#include <generic/apt/resolver_manager.h>
#include <generic/problemresolver/exceptions.h>
#include <generic/problemresolver/solution.h>
#include <sigc++/bind.h>
namespace cw = cwidget;
namespace cwidget
{
using namespace widgets;
}
typedef generic_solution<aptitude_universe> aptitude_solution;
class solution_dialog:public cw::text_layout
{
aptitude_solution last_sol;
void handle_cache_reload()
{
if(apt_cache_file)
resman->state_changed.connect(sigc::mem_fun(*this, &solution_dialog::post_update));
update();
}
void post_update()
{
cw::toplevel::post_event(new cw::toplevel::slot_event(sigc::mem_fun(this, &solution_dialog::update)));
}
protected:
solution_dialog()
{
if(apt_cache_file)
resman->state_changed.connect(sigc::mem_fun(*this, &solution_dialog::post_update));
cache_closed.connect(sigc::mem_fun(*this, &solution_dialog::update));
cache_reloaded.connect(sigc::mem_fun(*this, &solution_dialog::handle_cache_reload));
update();
}
public:
static cw::util::ref_ptr<solution_dialog> create()
{
cw::util::ref_ptr<solution_dialog> rval(new solution_dialog);
rval->decref();
return rval;
}
void update()
{
cw::widget_ref tmpref(this);
if(!apt_cache_file)
{
set_fragment(cw::fragf("%s", _("The package cache is not available.")));
last_sol.nullify();
return;
}
if(!resman->resolver_exists())
{
// This makes ASS-U-MPTIONS about how resolver_exists works.
set_fragment(cw::fragf("%s", _("No packages are broken.")));
last_sol.nullify();
return;
}
resolver_manager::state state = resman->state_snapshot();
if(state.solutions_exhausted && state.generated_solutions == 0)
{
set_fragment(cw::fragf("%s", _("No resolution found.")));
return;
}
if(state.selected_solution >= state.generated_solutions)
{
if(state.background_thread_aborted)
{
set_fragment(cw::fragf("%s", state.background_thread_abort_msg.c_str()));
return;
}
else
{
set_fragment(cw::fragf("%s", _("Resolving dependencies...")));
return;
}
}
aptitude_solution sol = resman->get_solution(state.selected_solution, 0);
if(sol == last_sol)
return;
last_sol=sol;
if(sol.get_choices().size() > 0)
set_fragment(cw::fragf("%s", _("Internal error: unexpected null solution.")));
else
set_fragment(solution_fragment(sol));
}
};
typedef cw::util::ref_ptr<solution_dialog> solution_dialog_ref;
static void do_apply(cw::widget &wBare)
{
cw::widget_ref w(&wBare);
do_apply_solution();
w->destroy();
}
cw::widget_ref make_solution_dialog()
{
cw::table_ref t=cw::table::create();
cw::widget_ref rval=cw::center::create(cw::frame::create(t));
cw::text_layout_ref display=solution_dialog::create();
cw::scrollbar_ref scrl=cw::scrollbar::create(cw::scrollbar::VERTICAL);
display->location_changed.connect(sigc::mem_fun(scrl.unsafe_get_ref(), &cw::scrollbar::set_slider));
scrl->scrollbar_interaction.connect(sigc::mem_fun(display.unsafe_get_ref(), &cw::text_layout::scroll));
t->add_widget_opts(display,
0, 0, 1, 1,
cw::table::EXPAND | cw::table::FILL | cw::table::SHRINK,
cw::table::EXPAND | cw::table::FILL | cw::table::SHRINK);
t->add_widget_opts(scrl,
0, 1, 1, 1,
cw::table::ALIGN_RIGHT,
cw::table::ALIGN_CENTER | cw::table::FILL | cw::table::SHRINK);
cw::table_ref bt=cw::table::create();
//t->set_bg(get_color("DefaultWidgetBackground")|A_REVERSE);
// TODO: for dialogs like this, I really should have support for
// "wrapping" lines of buttons if they get too long, like fragments.
cw::button_ref bprev = cw::button::create(_("Previous"));
cw::button_ref bnext = cw::button::create(_("Next"));
cw::button_ref bapply = cw::button::create(_("Apply"));
cw::button_ref bclose = cw::button::create(_("Close"));
bprev->pressed.connect(sigc::ptr_fun(do_previous_solution));
bnext->pressed.connect(sigc::ptr_fun(do_next_solution));
bapply->pressed.connect(sigc::bind(sigc::ptr_fun(do_apply),
rval.weak_ref()));
bclose->pressed.connect(sigc::mem_fun(rval.unsafe_get_ref(),
&cw::widget::destroy));
rval->connect_key("ApplySolution", &cw::config::global_bindings,
sigc::bind(sigc::ptr_fun(do_apply),
rval.weak_ref()));
bprev->set_bg_style(cw::style_attrs_flip(A_REVERSE));
bnext->set_bg_style(cw::style_attrs_flip(A_REVERSE));
bapply->set_bg_style(cw::style_attrs_flip(A_REVERSE));
bclose->set_bg_style(cw::style_attrs_flip(A_REVERSE));
bt->add_widget_opts(bprev,
0, 0, 1, 1,
cw::table::FILL | cw::table::EXPAND, cw::table::FILL);
bt->add_widget_opts(bnext,
0, 1, 1, 1,
cw::table::FILL | cw::table::EXPAND, cw::table::FILL);
bt->add_widget_opts(bapply,
0, 2, 1, 1,
cw::table::FILL | cw::table::EXPAND, cw::table::FILL);
bt->add_widget_opts(bclose,
0, 3, 1, 1,
cw::table::FILL | cw::table::EXPAND, cw::table::FILL);
t->add_widget_opts(bt, 1, 0, 1, 2,
cw::table::FILL | cw::table::EXPAND | cw::table::SHRINK,
cw::table::FILL);
return rval;
}
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