ttf.hpp

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
#pragma once


#include <planet/affine/extents2d.hpp>
#include <planet/asset_manager.hpp>
#include <planet/sdl/handle.hpp>
#include <planet/sdl/rw_ops.hpp>
#include <planet/sdl/surface.hpp>

#include <SDL_ttf.h>


namespace planet::sdl {


    class init;

Initialise TTF

Create one of these for access to the TTF rendering parts of SDL2

21
22
23
24
25
    class ttf {
      public:
        ttf(init &);
        ~ttf();
    };

TTF Font

 
29
30
31
32
33
34
35
36
37
38
39
40
41
42
    class font {
        rw_ops_const_memory font_data;
        handle<TTF_Font, TTF_CloseFont> pf;
        SDL_Color colour;

      public:
        font(asset_manager const &,
             char const *filename,
             std::size_t pixel_height,
             SDL_Color = {255, 255, 255, 255},
             felspar::source_location const & =
                     felspar::source_location::current());

        TTF_Font *get() const noexcept { return pf.get(); }

Measurements

 
45
        affine::extents2d const space, em;

Text dimensions

 
48
        affine::extents2d measure(char const *text) const;

Render text to a single line

 
51
52
53
54
55
56
57
58
59
        surface
                render(char const *text,
                       planet::ui::scale fit = planet::ui::scale::never) const {
            return render(text, colour, fit);
        }
        surface
                render(char const *text,
                       SDL_Color,
                       planet::ui::scale = planet::ui::scale::never) const;

Wrap text if it is too wide

 
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
        surface
                render(char const *text,
                       std::uint32_t const width,
                       planet::ui::scale fit = planet::ui::scale::never) const {
            return render(text, colour, width, fit);
        }
        surface
                render(char const *text,
                       SDL_Color,
                       std::uint32_t width,
                       planet::ui::scale = planet::ui::scale::never) const;
    };


}