~teejee2008/timeshift/trunk

/*

 * AboutWindow.vala

 *

 * Copyright 2016 Tony George <teejeetech@gmail.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., 51 Franklin Street, Fifth Floor, Boston,

 * MA 02110-1301, USA.

 *

 *

 */

using Gtk;

using TeeJee.Logging;

using TeeJee.FileSystem;

using TeeJee.JsonHelper;

using TeeJee.ProcessHelper;

using TeeJee.GtkHelper;

using TeeJee.System;

using TeeJee.Misc;

public class AboutWindow : Dialog {

	private Box vbox_main;

	private Box vbox_logo;

	private Box vbox_credits;

	private Box vbox_lines;

	private Box hbox_action;

	private Button btn_credits;

	private Button btn_close;

	private Gtk.Image img_logo;

	private Label lbl_program_name;

	private Label lbl_version;

	private Label lbl_comments;

	private LinkButton lbtn_website;

	private Label lbl_copyright;

	private string[] _artists;

	public string[] artists{

		get{

			return _artists;

		}

		set{

			_artists = value;

		}

	}

	private string[] _authors;

	public string[] authors{

		get{

			return _authors;

		}

		set{

			_authors = value;

		}

	}

	private string[] _contributors;

	public string[] contributors{

		get{

			return _contributors;

		}

		set{

			_contributors = value;

		}

	}

	private string _comments = "";

	public string comments{

		get{

			return _comments;

		}

		set{

			_comments = value;

		}

	}

	private string _copyright = "";

	public string copyright{

		get{

			return _copyright;

		}

		set{

			_copyright = value;

		}

	}

	private string[] _documenters;

	public string[] documenters{

		get{

			return _documenters;

		}

		set{

			_documenters = value;

		}

	}

	private string[] _donations;

	public string[] donations{

		get{

			return _donations;

		}

		set{

			_donations = value;

		}

	}

	private string _license = "";

	public string license{

		get{

			return _license;

		}

		set{

			_license = value;

		}

	}

	private Gdk.Pixbuf _logo;

	public Gdk.Pixbuf logo{

		get{

			return _logo;

		}

		set{

			_logo = value;

		}

	}

	private string _program_name = "";

	public string program_name{

		get{

			return _program_name;

		}

		set{

			_program_name = value;

		}

	}

	private string[] _translators;

	public string[] translators{

		get{

			return _translators;

		}

		set{

			_translators = value;

		}

	}

	private string[] _third_party;

	public string[] third_party{

		get{

			return _third_party;

		}

		set{

			_third_party = value;

		}

	}

	private string _version = "";

	public string version{

		get{

			return _version;

		}

		set{

			_version = value;

		}

	}

	private string _website = "";

	public string website{

		get{

			return _website;

		}

		set{

			_website = value;

		}

	}

	private string _website_label = "";

	public string website_label{

		get{

			return _website_label;

		}

		set{

			_website_label = value;

		}

	}

	public AboutWindow() {

        window_position = WindowPosition.CENTER_ON_PARENT;

		set_destroy_with_parent (true);

		set_modal (true);

        skip_taskbar_hint = false;

        set_default_size (450, 400);

	    vbox_main = get_content_area();

		vbox_main.margin = 6;

		vbox_main.spacing = 6;

		vbox_logo = new Box(Orientation.VERTICAL,0);

		vbox_main.add(vbox_logo);

		vbox_credits = new Box(Orientation.VERTICAL,0);

		vbox_credits.no_show_all = true;

		vbox_main.add(vbox_credits);

		vbox_lines = new Box(Orientation.VERTICAL,0);

		vbox_lines.margin_top = 10;

		//logo

		img_logo = new Gtk.Image();

		img_logo.margin_top = 6;

		img_logo.margin_bottom = 6;

        vbox_logo.add(img_logo);

		//program_name

		lbl_program_name = new Label("");

		lbl_program_name.set_use_markup(true);

		vbox_logo.add(lbl_program_name);

		//version

		lbl_version = new Label("");

		lbl_version.set_use_markup(true);

		lbl_version.margin_top = 5;

		vbox_logo.add(lbl_version);

		//comments

		lbl_comments = new Label("");

		lbl_comments.set_use_markup(true);

		lbl_comments.margin_top = 10;

		vbox_logo.add(lbl_comments);

		//website

		lbtn_website = new LinkButton("");

		lbtn_website.margin_top = 5;

		vbox_logo.add(lbtn_website);

		lbtn_website.activate_link.connect(()=>{

			try{

				return Gtk.show_uri(null, lbtn_website.uri, Gdk.CURRENT_TIME);

			}

			catch(Error e){

				return false;

			}

		});

		//copyright

		lbl_copyright = new Label("");

		lbl_copyright.set_use_markup(true);

		lbl_copyright.margin_top = 5;

		vbox_logo.add(lbl_copyright);

		//spacer_bottom

		var spacer_bottom = new Label("");

		spacer_bottom.margin_top = 20;

		vbox_logo.add(spacer_bottom);

		//scroller

		var sw_credits = new ScrolledWindow(null, null);

		sw_credits.set_shadow_type(ShadowType.ETCHED_IN);

		sw_credits.expand = true;

		vbox_credits.add(sw_credits);

		sw_credits.add(vbox_lines);

		//hbox_commands --------------------------------------------------

		hbox_action = (Box) get_action_area();

		//btn_credits

		btn_credits = new Button.with_label("  " + _("Credits"));

		btn_credits.set_image (new Image.from_stock ("gtk-about", IconSize.MENU));

		hbox_action.add(btn_credits);

        btn_credits.clicked.connect(()=>{

			vbox_logo.visible = !(vbox_logo.visible);

			vbox_credits.visible = !(vbox_credits.visible);

			if ((vbox_credits.visible)&&(!sw_credits.visible)){

				sw_credits.show_all();

			}

			if (vbox_credits.visible){

				btn_credits.label = "  " + _("Back");

				btn_credits.set_image (new Image.from_stock ("gtk-go-back", IconSize.MENU));

			}

			else{

				btn_credits.label = "  " + _("Credits");

				btn_credits.set_image (new Image.from_stock ("gtk-about", IconSize.MENU));

			}

		});

		//btn_close

		btn_close = new Button.with_label("  " + _("Close"));

		btn_close.set_image (new Image.from_stock ("gtk-close", IconSize.MENU));

		hbox_action.add(btn_close);

		btn_close.clicked.connect(()=>{ this.destroy(); });

	}

	public void initialize() {

		title = program_name;

		img_logo.pixbuf = logo.scale_simple(128,128,Gdk.InterpType.HYPER);

		lbl_program_name.label = "<span size='larger'>%s</span>".printf(program_name);

		lbl_version.label = "v%s".printf(version);

		lbl_comments.label = "%s".printf(comments);

		lbtn_website.uri = website;

		lbtn_website.label = website_label;

		//lbl_copyright.label = "<span size='smaller'>%s</span>".printf(copyright);

		lbl_copyright.label = "<span>%s</span>".printf(copyright);

		if (authors.length > 0){

			add_header("<b>%s</b>\n".printf(_("Authors")));

			foreach(string name in authors){

				add_line("%s\n".printf(name));

			}

			add_line("\n");

		}

		if (contributors.length > 0){

			add_header("<b>%s</b>\n".printf(_("Contributions")));

			foreach(string name in contributors){

				add_line("%s\n".printf(name));

			}

			add_line("\n");

		}

		if (third_party.length > 0){

			add_header("<b>%s</b>\n".printf(_("Third Party Tools")));

			foreach(string name in third_party){

				add_line("%s\n".printf(name));

			}

			add_line("\n");

		}

		if (artists.length > 0){

			add_header("<b>%s</b>\n".printf(_("Artists")));

			foreach(string name in artists){

				add_line("%s\n".printf(name));

			}

			add_line("\n");

		}

		if (translators.length > 0){

			add_header("<b>%s</b>\n".printf(_("Translators")));

			foreach(string name in translators){

				add_line("%s\n".printf(name));

			}

			add_line("\n");

		}

		if (documenters.length > 0){

			add_header("<b>%s</b>\n".printf(_("Documenters")));

			foreach(string name in documenters){

				add_line("%s\n".printf(name));

			}

			add_line("\n");

		}

		if (donations.length > 0){

			add_header("<b>%s</b>\n".printf(_("Donations")));

			foreach(string name in donations){

				add_line("%s\n".printf(name));

			}

			add_line("\n");

		}

		if (vbox_lines.get_children().length() == 0){

			btn_credits.visible = false;

		}

	}

	public void add_line(string text, bool escape_html_chars = true){

		if (text.split(":").length >= 2){

			var link = new LinkButton(escape_html(text.split(":")[0]));

			vbox_lines.add(link);

			string val = text[text.index_of(":") + 1:text.length];

			if (val.contains("@")){

				link.uri = "mailto:" + val;

			}

			else if(val.has_prefix("http://")){

				link.uri = val;

			}

			else{

				link.uri = "http://" + val;

			}

			link.activate_link.connect(()=>{

				try{

					return Gtk.show_uri(null, link.uri, Gdk.CURRENT_TIME);

				}

				catch(Error e){

					return false;

				}

			});

		}

		else{

			var txt = text;

			if (escape_html_chars){

				txt = escape_html(text);

			}

			var lbl = new Label(txt);

			lbl.set_use_markup(true);

			lbl.valign = Align.START;

			lbl.wrap = true;

			lbl.wrap_mode = Pango.WrapMode.WORD;

			vbox_lines.add(lbl);

		}

	}

	public void add_header(string text){

		add_line(text, false);

	}

}