image_source.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2015 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 namespace clan
32 {
33 class Canvas;
34 class Image;
35
36 class ImageSource
37 {
38 public:
39 virtual Image get_image(Canvas &canvas) = 0;
40 static std::shared_ptr<ImageSource> from_resource(const std::string &resource_name);
41 static std::shared_ptr<ImageSource> from_callback(const std::function<Image(Canvas &)> &get_image_callback);
42 static std::shared_ptr<ImageSource> from_image(const Image &image);
43 protected:
44 virtual ~ImageSource() { }
45
46 };
47
48 }
clan::ImageSource::get_image
virtual Image get_image(Canvas &canvas)=0
clan
Definition: clanapp.h:35
clan::StyleTokenType::function
C style comment block.
clan::ImageSource::~ImageSource
virtual ~ImageSource()
Definition: image_source.h:44
clan::Canvas
2D Graphics Canvas
Definition: canvas.h:72
clan::BrushType::image
clan::ImageSource::from_image
static std::shared_ptr< ImageSource > from_image(const Image &image)
clan::StyleTokenType::string
@ keyword
clan::Image
Image class.
Definition: image.h:59
clan::ImageSource
Definition: image_source.h:36
clan::ImageSource::from_resource
static std::shared_ptr< ImageSource > from_resource(const std::string &resource_name)
clan::ImageSource::from_callback
static std::shared_ptr< ImageSource > from_callback(const std::function< Image(Canvas &)> &get_image_callback)