The Battle for Wesnoth  1.17.0-dev
help_browser.cpp
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1 /*
2  Copyright (C) 2017 - 2021
3  by Charles Dang <exodia339@gmail.com>
4  Part of the Battle for Wesnoth Project https://www.wesnoth.org/
5 
6  This program is free software; you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation; either version 2 of the License, or
9  (at your option) any later version.
10  This program is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY.
12 
13  See the COPYING file for more details.
14 */
15 
16 #define GETTEXT_DOMAIN "wesnoth-lib"
17 
19 
20 #include "game_config_manager.hpp"
22 #include "gui/widgets/button.hpp"
23 #include "gui/widgets/image.hpp"
26 #include "gui/widgets/settings.hpp"
27 #include "gui/widgets/settings.hpp"
28 #include "gui/widgets/text_box.hpp"
31 #include "gui/widgets/window.hpp"
32 
33 #ifdef GUI2_EXPERIMENTAL_LISTBOX
34 #include "gui/widgets/list.hpp"
35 #else
36 #include "gui/widgets/listbox.hpp"
37 #endif
38 
39 #include "help/help.hpp"
40 
41 namespace gui2::dialogs
42 {
43 
44 REGISTER_DIALOG(help_browser)
45 
47  : initial_topic_("introduction")
48  , help_cfg_(game_config_manager::get()->game_config().child("help"))
49 {
50 }
51 
53 {
54  tree_view& topic_tree = find_widget<tree_view>(&window, "topic_tree", false);
55  multi_page& topic_pages = find_widget<multi_page>(&window, "topic_text_pages", false);
56 
58  std::bind(&help_browser::on_topic_select, this));
59 
60  window.keyboard_capture(&topic_tree);
61 
62  unsigned id = 0;
63 
64  for(const auto& topic : help_cfg_.child_range("topic")) {
65  std::map<std::string, string_map> data;
67 
68  item["label"] = topic["title"];
69  data.emplace("topic_name", item);
70 
71  topic_tree.add_node("topic", data).set_id(std::to_string(id));
72 
73  // FIXME: maybe using a multi page isn't a good idea here... :| it causes massive lag when opening.
74  item.clear();
75  data.clear();
76 
77  item["label"] = topic["text"].empty() ? "" : topic["text"].str();
78  data.emplace("topic_text", item);
79 
80  topic_pages.add_page(data);
81 
82  ++id;
83  }
84 
86 }
87 
89 {
90  tree_view& tree = find_widget<tree_view>(get_window(), "topic_tree", false);
91 
92  if(tree.empty()) {
93  return;
94  }
95 
96  assert(tree.selected_item());
97 
98  if(tree.selected_item()->id().empty()) {
99  return;
100  }
101 
102  const unsigned topic_i = lexical_cast<unsigned>(tree.selected_item()->id());
103  find_widget<multi_page>(get_window(), "topic_text_pages", false).select_page(topic_i);
104 
105 }
106 
107 } // namespace dialogs
const std::string & id() const
Definition: widget.cpp:110
This file contains the window object, this object is a top level container which has the event manage...
child_itors child_range(config_key_type key)
Definition: config.cpp:344
tree_view_node * selected_item()
Definition: tree_view.hpp:117
window * get_window() const
Returns a pointer to the dialog&#39;s window.
To lexical_cast(From value)
Lexical cast converts one type to another.
virtual void pre_show(window &window) override
Actions to be taken before showing the window.
void connect_signal_notify_modified(dispatcher &dispatcher, const signal_notification_function &signal)
Connects a signal handler for getting a notification upon modification.
Definition: dispatcher.cpp:187
This file contains the settings handling of the widget library.
A tree view is a control that holds several items of the same or different types. ...
Definition: tree_view.hpp:60
std::string id
Text to match against addon_info.tags()
Definition: manager.cpp:215
Game configuration data as global variables.
Definition: build_info.cpp:59
CURSOR_TYPE get()
Definition: cursor.cpp:216
Help browser dialog.
std::map< std::string, t_string > string_map
Definition: widget.hpp:26
A multi page is a control that contains several &#39;pages&#39; of which only one is visible.
Definition: multi_page.hpp:49
bool empty() const
Definition: tree_view.cpp:111
void set_id(const std::string &id)
Definition: widget.cpp:98
Definition: help.cpp:57
base class of top level items, the only item which needs to store the final canvases to draw on...
Definition: window.hpp:65
tree_view_node & add_node(const std::string &id, const std::map< std::string, string_map > &data, const int index=-1)
Definition: tree_view.cpp:57
std::pair< std::string, unsigned > item
Definition: help_impl.hpp:410