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Diffstat (limited to '')
-rw-r--r-- | src/object/filters/sp-filter-primitive.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/object/filters/sp-filter-primitive.h b/src/object/filters/sp-filter-primitive.h new file mode 100644 index 0000000..8374827 --- /dev/null +++ b/src/object/filters/sp-filter-primitive.h @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#ifndef SEEN_SP_FILTER_PRIMITIVE_H +#define SEEN_SP_FILTER_PRIMITIVE_H + +/** \file + * Document level base class for all SVG filter primitives. + */ +/* + * Authors: + * Hugo Rodrigues <haa.rodrigues@gmail.com> + * Niko Kiirala <niko@kiirala.com> + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include "2geom/rect.h" +#include "../sp-object.h" +#include "../sp-dimensions.h" + +#define SP_FILTER_PRIMITIVE(obj) (dynamic_cast<SPFilterPrimitive*>((SPObject*)obj)) +#define SP_IS_FILTER_PRIMITIVE(obj) (dynamic_cast<const SPFilterPrimitive*>((SPObject*)obj) != NULL) + +namespace Inkscape { +namespace Filters { +class Filter; +class FilterPrimitive; +} } + +class SPFilterPrimitive : public SPObject, public SPDimensions { +public: + SPFilterPrimitive(); + ~SPFilterPrimitive() override; + + int image_in, image_out; + +protected: + void build(SPDocument* doc, Inkscape::XML::Node* repr) override; + void release() override; + + void set(SPAttr key, char const* value) override; + + void update(SPCtx* ctx, unsigned int flags) override; + + Inkscape::XML::Node* write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, unsigned int flags) override; + +public: + virtual void build_renderer(Inkscape::Filters::Filter* filter) = 0; + + /* Calculate the filter's effect on the region */ + virtual Geom::Rect calculate_region(Geom::Rect region); + + /* Return true if the object should be allowed to use this filter */ + virtual bool valid_for(SPObject const *obj) const { + // This is used by feImage to stop infinate loops. + return true; + }; + + /* Common initialization for filter primitives */ + void renderer_common(Inkscape::Filters::FilterPrimitive *nr_prim); + + int name_previous_out(); + int read_in(char const *name); + int read_result(char const *name); +}; + +#endif +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |