style.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2020 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Magnus Norddahl
27 ** Mark Page
28 */
29 
30 #pragma once
31 
32 #include "../../Core/Text/string_format.h"
33 #include "../../Core/Math/cl_math.h"
34 #include "../../Display/2D/color.h"
35 #include "style_get_value.h"
36 #include "property_hash.h"
37 #include <memory>
38 
39 namespace clan
40 {
41  class StyleImpl;
42  class StyleGetValue;
43 
45  class Style
46  {
47  public:
48  Style();
49  Style(const Style &) = delete;
50  ~Style();
51  Style &operator=(const Style &) = delete;
52 
61  void set(const std::string &properties);
62 
63  template <class Arg1, typename... Values>
64  void set(const std::string &properties, Arg1 arg1, Values... values)
65  {
66  set(string_format(properties, arg1, values...));
67  }
68 
71 
73  static std::string to_rgba(const Colorf &c)
74  {
75  return string_format(
76  "rgba(%1,%2,%3,%4)",
77  clamp((int)std::round(c.r * 255), 0, 255),
78  clamp((int)std::round(c.g * 255), 0, 255),
79  clamp((int)std::round(c.b * 255), 0, 255),
80  c.a);
81  }
82 
83  private:
84  std::unique_ptr<StyleImpl> impl;
85  };
86 }
Definition: clanapp.h:35
Floating point color description class (for float).
Definition: color.h:798
static std::string to_rgba(const Colorf &c)
Static helper that generates a "rgba(%1,%2,%3,%4)" string for the given color.
Definition: style.h:73
std::string string_format(const std::string &format)
See clan::StringFormat for details.
Definition: string_format.h:157
Style value returned by style classes.
Definition: style_get_value.h:39
StyleGetValue declared_value(PropertyHash hash) const
Retrieve the declared value for a property.
Definition: property_hash.h:34
Style & operator=(const Style &)=delete
Style property set.
Definition: style.h:45