1// SuperTux
2// Copyright (C) 2016 Ingo Ruhnke <grumbel@gmail.com>
3//
4// This program is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// This program is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with this program. If not, see <http://www.gnu.org/licenses/>.
16
17#ifndef HEADER_SUPERTUX_VIDEO_TTF_SURFACE_MANAGER_HPP
18#define HEADER_SUPERTUX_VIDEO_TTF_SURFACE_MANAGER_HPP
19
20#include <tuple>
21#include <map>
22#include <string>
23#include <iosfwd>
24
25#include "util/currenton.hpp"
26#include "video/color.hpp"
27#include "video/surface_ptr.hpp"
28#include "video/ttf_surface.hpp"
29
30class TTFFont;
31
32class TTFSurfaceManager final : public Currenton<TTFSurfaceManager>
33{
34public:
35 TTFSurfaceManager();
36
37 TTFSurfacePtr create_surface(const TTFFont& font, const std::string& text);
38
39 void print_debug_info(std::ostream& out);
40
41private:
42 void cache_cleanup_step();
43
44private:
45 struct CacheEntry
46 {
47 CacheEntry() : ttf_surface(), last_access() {}
48 CacheEntry(const TTFSurfacePtr& s);
49
50 TTFSurfacePtr ttf_surface;
51 float last_access;
52 };
53
54private:
55 using Key = std::tuple<void*, std::string>;
56 std::map<Key, CacheEntry> m_cache;
57
58 std::map<Key, CacheEntry>::iterator m_cache_iter;
59
60private:
61 TTFSurfaceManager(const TTFSurfaceManager&) = delete;
62 TTFSurfaceManager& operator=(const TTFSurfaceManager&) = delete;
63};
64
65#endif
66
67/* EOF */
68