// K-3D
// Copyright (c) 1995-2007, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#include <k3d-i18n-config.h>
#include <k3d-version-config.h>
#include <k3dsdk/application_plugin_factory.h>
#include <k3dsdk/contributors.h>
#include <k3dsdk/module.h>
#include <k3dsdk/ngui/application_window.h>
#include <k3dsdk/ngui/button.h>
#include <k3dsdk/ngui/utility.h>
#include <k3dsdk/ngui/widget_manip.h>
#include <k3dsdk/path.h>

#include <gtkmm/box.h>
#include <gtkmm/buttonbox.h>
#include <gtkmm/frame.h>
#include <gtkmm/image.h>
#include <gtkmm/label.h>
#include <gtkmm/notebook.h>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/stock.h>
#include <gtkmm/textview.h>

#include <boost/assign/list_of.hpp>
#include <sstream>

using namespace k3d::ngui;

namespace module
{

namespace ngui
{

namespace about
{

/////////////////////////////////////////////////////////////////////////////
// dialog

/// Creates an "about" box that displays program version and copyright
class dialog :
	public k3d::ngui::application_window,
	public k3d::iunknown
{
	typedef k3d::ngui::application_window base;

public:
	dialog()
	{
		set_title(_("About K-3D"));
		set_role("about_box");
		set_position(Gtk::WIN_POS_CENTER);

		Gtk::Notebook* const notebook = new Gtk::Notebook();
		{
			{
				Gtk::VBox* const box = new Gtk::VBox(false, 10);
				box->set_border_width(5);

				box->pack_start(*Gtk::manage(new Gtk::Image(load_pixbuf(k3d::filesystem::native_path(k3d::ustring::from_utf8("about.xpm"))))), Gtk::PACK_EXPAND_WIDGET);
				box->pack_start(*Gtk::manage(new Gtk::Label() << line_wrap() << center_justify() << set_markup("<big><b>K-3D Version " K3D_VERSION "</b></big>")));
				box->pack_start(*Gtk::manage(new Gtk::Label(K3D_COPYRIGHT) << line_wrap() << center_justify()));
				box->pack_start(*Gtk::manage(new Gtk::Label("Portions copyright (c) 2002, Industrial Light & Magic, a division of Lucas Digital Ltd. LLC") << line_wrap() << center_justify()));

				notebook->append_page(*Gtk::manage(box), "Copyright");
			}

			{
				Gtk::VBox* const box = new Gtk::VBox(false, 10);
				box->set_border_width(5);

				Gtk::TextView* const text_view = new Gtk::TextView();
				text_view->set_editable(false);
				text_view->set_wrap_mode(Gtk::WRAP_WORD);
				text_view->set_justification(Gtk::JUSTIFY_LEFT);

				Glib::RefPtr<Gtk::TextBuffer> text_buffer = text_view->get_buffer();

				Glib::RefPtr<Gtk::TextTag> heading_tag = Gtk::TextTag::create("name");
				heading_tag->property_foreground() = "#000000";
				heading_tag->property_weight() = Pango::WEIGHT_BOLD;
				heading_tag->property_justification() = Gtk::JUSTIFY_CENTER;
				text_buffer->get_tag_table()->add(heading_tag);

				text_buffer->insert(text_buffer->end(),
					"This program is free software; you can redistribute it and/or "
					"modify it under the terms of the GNU General Public License:\n"
					"\n"
					);

				text_buffer->insert_with_tag(text_buffer->end(),
					"GNU GENERAL PUBLIC LICENSE\n"
					"Version 2, June 1991\n"
					"\n",
					heading_tag);

				text_buffer->insert(text_buffer->end(),
					"Copyright (C) 1989, 1991 Free Software Foundation, Inc. "
					"59 Temple Place, Suite 330, Boston, MA  02111-1307  USA "
					"Everyone is permitted to copy and distribute verbatim copies "
					"of this license document, but changing it is not allowed.\n"
					"\n"
					);

				text_buffer->insert_with_tag(text_buffer->end(),
					"Preamble\n"
					"\n",
					heading_tag);

				text_buffer->insert(text_buffer->end(),
					"  The licenses for most software are designed to take away your "
					"freedom to share and change it.  By contrast, the GNU General Public "
					"License is intended to guarantee your freedom to share and change free "
					"software--to make sure the software is free for all its users.  This "
					"General Public License applies to most of the Free Software "
					"Foundation's software and to any other program whose authors commit to "
					"using it.  (Some other Free Software Foundation software is covered by "
					"the GNU Library General Public License instead.)  You can apply it to "
					"your programs, too.\n"
					"\n"
					"  When we speak of free software, we are referring to freedom, not "
					"price.  Our General Public Licenses are designed to make sure that you "
					"have the freedom to distribute copies of free software (and charge for "
					"this service if you wish), that you receive source code or can get it "
					"if you want it, that you can change the software or use pieces of it "
					"in new free programs; and that you know you can do these things.\n"
					"\n"
					"  To protect your rights, we need to make restrictions that forbid "
					"anyone to deny you these rights or to ask you to surrender the rights. "
					"These restrictions translate to certain responsibilities for you if you "
					"distribute copies of the software, or if you modify it.\n"
					"\n"
					"  For example, if you distribute copies of such a program, whether "
					"gratis or for a fee, you must give the recipients all the rights that "
					"you have.  You must make sure that they, too, receive or can get the "
					"source code.  And you must show them these terms so they know their "
					"rights.\n"
					"\n"
					"  We protect your rights with two steps: (1) copyright the software, and "
					"(2) offer you this license which gives you legal permission to copy, "
					"distribute and/or modify the software.\n"
					"\n"
					"  Also, for each author's protection and ours, we want to make certain "
					"that everyone understands that there is no warranty for this free "
					"software.  If the software is modified by someone else and passed on, we "
					"want its recipients to know that what they have is not the original, so "
					"that any problems introduced by others will not reflect on the original "
					"authors' reputations.\n"
					"\n"
					"  Finally, any free program is threatened constantly by software "
					"patents.  We wish to avoid the danger that redistributors of a free "
					"program will individually obtain patent licenses, in effect making the "
					"program proprietary.  To prevent this, we have made it clear that any "
					"patent must be licensed for everyone's free use or not licensed at all.\n"
					"\n"
					"  The precise terms and conditions for copying, distribution and "
					"modification follow.\n"
					"\n"
					);

				text_buffer->insert_with_tag(text_buffer->end(),
					"GNU GENERAL PUBLIC LICENSE\n"
					"TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION\n"
					"\n",
					heading_tag);

				text_buffer->insert(text_buffer->end(),
					"  0. This License applies to any program or other work which contains "
					"a notice placed by the copyright holder saying it may be distributed "
					"under the terms of this General Public License.  The \"Program\", below, "
					"refers to any such program or work, and a \"work based on the Program\" "
					"means either the Program or any derivative work under copyright law: "
					"that is to say, a work containing the Program or a portion of it, "
					"either verbatim or with modifications and/or translated into another "
					"language.  (Hereinafter, translation is included without limitation in "
					"the term \"modification\".)  Each licensee is addressed as \"you\".\n"
					"\n"
					"Activities other than copying, distribution and modification are not "
					"covered by this License; they are outside its scope.  The act of "
					"running the Program is not restricted, and the output from the Program "
					"is covered only if its contents constitute a work based on the "
					"Program (independent of having been made by running the Program). "
					"Whether that is true depends on what the Program does.\n"
					"\n"
					"  1. You may copy and distribute verbatim copies of the Program's "
					"source code as you receive it, in any medium, provided that you "
					"conspicuously and appropriately publish on each copy an appropriate "
					"copyright notice and disclaimer of warranty; keep intact all the "
					"notices that refer to this License and to the absence of any warranty; "
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					"along with the Program.\n"
					"\n"
					"You may charge a fee for the physical act of transferring a copy, and "
					"you may at your option offer warranty protection in exchange for a fee.\n"
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					"  2. You may modify your copy or copies of the Program or any portion "
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					"\n"
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					"under Section 2) in object code or executable form under the terms of "
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					"impose that choice.\n"
					"\n"
					"This section is intended to make thoroughly clear what is believed to "
					"be a consequence of the rest of this License.\n"
					"\n"
					"  8. If the distribution and/or use of the Program is restricted in "
					"certain countries either by patents or by copyrighted interfaces, the "
					"original copyright holder who places the Program under this License "
					"may add an explicit geographical distribution limitation excluding "
					"those countries, so that distribution is permitted only in or among "
					"countries not thus excluded.  In such case, this License incorporates "
					"the limitation as if written in the body of this License.\n"
					"\n"
					"  9. The Free Software Foundation may publish revised and/or new versions "
					"of the General Public License from time to time.  Such new versions will "
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					"address new problems or concerns.\n"
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					"specifies a version number of this License which applies to it and \"any "
					"later version\", you have the option of following the terms and conditions "
					"either of that version or of any later version published by the Free "
					"Software Foundation.  If the Program does not specify a version number of "
					"this License, you may choose any version ever published by the Free Software "
					"Foundation.\n"
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					"  10. If you wish to incorporate parts of the Program into other free "
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					"of promoting the sharing and reuse of software generally.\n"
					"\n"
					);

				text_buffer->insert_with_tag(text_buffer->end(),
					"NO WARRANTY\n"
					"\n",
					heading_tag);

				text_buffer->insert(text_buffer->end(),
					"  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY "
					"FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN "
					"OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES "
					"PROVIDE THE PROGRAM \"AS IS\" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED "
					"OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF "
					"MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS "
					"TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE "
					"PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, "
					"REPAIR OR CORRECTION.\n"
					"\n"
					"  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING "
					"WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR "
					"REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, "
					"INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING "
					"OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED "
					"TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY "
					"YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER "
					"PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE "
					"POSSIBILITY OF SUCH DAMAGES.\n"
					"\n"
					);

				text_buffer->insert_with_tag(text_buffer->end(),
					"END OF TERMS AND CONDITIONS\n",
					heading_tag);

				Gtk::ScrolledWindow* const scrolled_window = new Gtk::ScrolledWindow();
				scrolled_window->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
				scrolled_window->add(*Gtk::manage(text_view));

				box->pack_start(*Gtk::manage(scrolled_window), Gtk::PACK_EXPAND_WIDGET);

				notebook->append_page(*Gtk::manage(box), "License");
			}

			{
				Gtk::VBox* const box = new Gtk::VBox(false, 10);
				box->set_border_width(5);

				Gtk::TextView* const text_view = new Gtk::TextView();
				text_view->set_editable(false);
				text_view->set_wrap_mode(Gtk::WRAP_WORD);
				text_view->set_justification(Gtk::JUSTIFY_CENTER);

				Glib::RefPtr<Gtk::TextBuffer> text_buffer = text_view->get_buffer();

				Glib::RefPtr<Gtk::TextTag> category_tag = Gtk::TextTag::create("category");
				category_tag->property_foreground() = "#5555ff";
				category_tag->property_scale() = 1.4;
				text_buffer->get_tag_table()->add(category_tag);

				Glib::RefPtr<Gtk::TextTag> name_tag = Gtk::TextTag::create("name");
				name_tag->property_foreground() = "#000000";
				name_tag->property_scale() = 1.2;
				name_tag->property_weight() = Pango::WEIGHT_BOLD;
				text_buffer->get_tag_table()->add(name_tag);

				Glib::RefPtr<Gtk::TextTag> description_tag = Gtk::TextTag::create("description");
				description_tag->property_foreground() = "#555555";
				description_tag->property_scale() = 0.8;
				text_buffer->get_tag_table()->add(description_tag);

				text_buffer->insert(text_buffer->end(), "\n\n\n\n");
				const k3d::contributors_t& contributors = k3d::contributors();
				for(k3d::contributors_t::const_iterator contributor = contributors.begin(); contributor != contributors.end(); ++contributor)
				{
					if(contributor->category.size())
					{
						text_buffer->insert(text_buffer->end(), "\n");
						text_buffer->insert_with_tag(text_buffer->end(), contributor->category, category_tag);
						text_buffer->insert(text_buffer->end(), "\n\n\n");
					}
					else
					{
						text_buffer->insert_with_tag(text_buffer->end(), contributor->name.raw(), name_tag);
						text_buffer->insert(text_buffer->end(), "\n");
						text_buffer->insert_with_tag(text_buffer->end(), contributor->description, description_tag);
						text_buffer->insert(text_buffer->end(), "\n\n");
					}
				}
				text_buffer->insert(text_buffer->end(), "\n\n\n\n");
			
				Gtk::ScrolledWindow* const scrolled_window = new Gtk::ScrolledWindow();
				scrolled_window->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
				scrolled_window->add(*Gtk::manage(text_view));

				box->pack_start(*Gtk::manage(scrolled_window), Gtk::PACK_EXPAND_WIDGET);

				notebook->append_page(*Gtk::manage(box), "Credits");
			}
		}

		Gtk::HButtonBox* const button_box = new Gtk::HButtonBox(Gtk::BUTTONBOX_END);
		button_box->pack_start(*Gtk::manage(
			new Gtk::Button(Gtk::Stock::CLOSE) << connect_button(sigc::mem_fun(*this, &dialog::close))
			), Gtk::PACK_SHRINK);

		Gtk::VBox* const box = new Gtk::VBox(false, 5);
		box->set_border_width(5);
		box->pack_start(*Gtk::manage(notebook), Gtk::PACK_EXPAND_WIDGET);
		box->pack_start(*Gtk::manage(button_box));

		add(*Gtk::manage(box));

		show_all();
	}

	static k3d::iplugin_factory& get_factory()
	{
		static k3d::application_plugin_factory<dialog> factory(
			k3d::uuid(0xdf6588d0, 0xb8473152, 0xfe6e839b, 0x484b9694),
			"NGUIAboutDialog",
			_("Displays the current K-3D version and credits contributors"),
			"NGUI Dialog",
			k3d::iplugin_factory::STABLE,
			boost::assign::map_list_of("ngui:component-type", "dialog"));

		return factory;
	}
};

} // namespace about

} // namespace ngui

} // namespace module

K3D_MODULE_START(Registry)
	Registry.register_factory(module::ngui::about::dialog::get_factory());
K3D_MODULE_END

