The Battle for Wesnoth  1.17.0-dev
widget_helpers.cpp
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1 /*
2  Copyright (C) 2008 - 2021
3  by Mark de Wever <koraq@xs4all.nl>
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 
17 
19 #include "gui/widgets/grid.hpp"
20 #include "gui/widgets/widget.hpp"
21 
22 #include <cassert>
23 
24 namespace gui2
25 {
26 void swap_grid(grid* g, grid* content_grid, widget* widget, const std::string& id)
27 {
28  assert(content_grid);
29  assert(widget);
30 
31  // Make sure the new child has same id.
32  widget->set_id(id);
33 
34  // Get the container containing the wanted widget.
35  grid* parent_grid = nullptr;
36  if(g) {
37  parent_grid = find_widget<grid>(g, id, false, false);
38  }
39 
40  if(!parent_grid) {
41  parent_grid = find_widget<grid>(content_grid, id, true, false);
42  }
43 
44  parent_grid = dynamic_cast<grid*>(parent_grid->parent());
45  assert(parent_grid);
46 
47  // Replace the child.
48  auto old = parent_grid->swap_child(id, widget, false);
49  assert(old);
50 }
51 }
Base class for all widgets.
Definition: widget.hpp:49
void swap_grid(grid *g, grid *content_grid, widget *widget, const std::string &id)
Swaps an item in a grid for another one.
Generic file dialog.
Definition: field-fwd.hpp:23
Base container class.
Definition: grid.hpp:31
std::string id
Text to match against addon_info.tags()
Definition: manager.cpp:215
double g
Definition: astarsearch.cpp:65
void set_id(const std::string &id)
Definition: widget.cpp:98