1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /** \file
3  * SVG displacement map filter effect
4  *//*
5  * Authors:
6  *   Hugo Rodrigues <haa.rodrigues@gmail.com>
7  *
8  * Copyright (C) 2006 Hugo Rodrigues
9  *
10  * Released under GNU GPL v2+, read the file 'COPYING' for more information.
11  */
12 
13 #ifndef SP_FEDISPLACEMENTMAP_H_SEEN
14 #define SP_FEDISPLACEMENTMAP_H_SEEN
15 
16 #include "sp-filter-primitive.h"
17 
18 #define SP_FEDISPLACEMENTMAP(obj) (dynamic_cast<SPFeDisplacementMap*>((SPObject*)obj))
19 #define SP_IS_FEDISPLACEMENTMAP(obj) (dynamic_cast<const SPFeDisplacementMap*>((SPObject*)obj) != NULL)
20 
21 enum FilterDisplacementMapChannelSelector {
22     DISPLACEMENTMAP_CHANNEL_RED,
23     DISPLACEMENTMAP_CHANNEL_GREEN,
24     DISPLACEMENTMAP_CHANNEL_BLUE,
25     DISPLACEMENTMAP_CHANNEL_ALPHA,
26     DISPLACEMENTMAP_CHANNEL_ENDTYPE
27 };
28 
29 class SPFeDisplacementMap : public SPFilterPrimitive {
30 public:
31 	SPFeDisplacementMap();
32 	~SPFeDisplacementMap() override;
33 
34     int in2;
35     double scale;
36     FilterDisplacementMapChannelSelector xChannelSelector;
37     FilterDisplacementMapChannelSelector yChannelSelector;
38 
39 protected:
40 	void build(SPDocument* doc, Inkscape::XML::Node* repr) override;
41 	void release() override;
42 
43 	void set(SPAttr key, const gchar* value) override;
44 
45 	void update(SPCtx* ctx, unsigned int flags) override;
46 
47 	Inkscape::XML::Node* write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, guint flags) override;
48 
49 	void build_renderer(Inkscape::Filters::Filter* filter) override;
50 };
51 
52 #endif /* !SP_FEDISPLACEMENTMAP_H_SEEN */
53 
54 /*
55   Local Variables:
56   mode:c++
57   c-file-style:"stroustrup"
58   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
59   indent-tabs-mode:nil
60   fill-column:99
61   End:
62 */
63 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
64