image_source.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2016 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 */
28 
29 #pragma once
30 
31 #include <memory>
32 #include <functional>
33 
34 namespace clan
35 {
36  class Canvas;
37  class Image;
38 
40  {
41  public:
42  virtual Image image(Canvas &canvas) = 0;
43  static std::shared_ptr<ImageSource> from_resource(const std::string &resource_name);
44  static std::shared_ptr<ImageSource> from_callback(const std::function<Image(Canvas &)> &get_image_callback);
45  static std::shared_ptr<ImageSource> from_image(const Image &image);
46 
47  protected:
48  virtual ~ImageSource() { }
49  };
50 }
Definition: clanapp.h:35
C style comment block.
virtual ~ImageSource()
Definition: image_source.h:48
2D Graphics Canvas
Definition: canvas.h:71
virtual Image image(Canvas &canvas)=0
static std::shared_ptr< ImageSource > from_image(const Image &image)
Image class.
Definition: image.h:58
Definition: image_source.h:39
static std::shared_ptr< ImageSource > from_resource(const std::string &resource_name)
static std::shared_ptr< ImageSource > from_callback(const std::function< Image(Canvas &)> &get_image_callback)