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Diffstat (limited to 'src/object/sp-filter.h')
-rw-r--r-- | src/object/sp-filter.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/object/sp-filter.h b/src/object/sp-filter.h new file mode 100644 index 0000000..c7af8bf --- /dev/null +++ b/src/object/sp-filter.h @@ -0,0 +1,109 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** \file + * SVG <filter> element + *//* + * 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. + */ +#ifndef SP_FILTER_H_SEEN +#define SP_FILTER_H_SEEN + +#include <glibmm/ustring.h> +#include <map> + +#include "number-opt-number.h" +#include "sp-dimensions.h" +#include "sp-object.h" +#include "sp-filter-units.h" +#include "svg/svg-length.h" + +#define SP_FILTER(obj) (dynamic_cast<SPFilter*>((SPObject*)obj)) +#define SP_IS_FILTER(obj) (dynamic_cast<const SPFilter*>((SPObject*)obj) != NULL) + +#define SP_FILTER_FILTER_UNITS(f) (SP_FILTER(f)->filterUnits) +#define SP_FILTER_PRIMITIVE_UNITS(f) (SP_FILTER(f)->primitiveUnits) + +namespace Inkscape { +namespace Filters { +class Filter; +} } + +class SPFilterReference; +class SPFilterPrimitive; + +struct ltstr { + bool operator()(const char* s1, const char* s2) const; +}; + +class SPFilter : public SPObject, public SPDimensions { +public: + SPFilter(); + ~SPFilter() override; + + /* Initializes the given Inkscape::Filters::Filter object as a renderer for this + * SPFilter object. */ + void build_renderer(Inkscape::Filters::Filter *nr_filter); + + /// Returns the number of filter primitives in this SPFilter object. + int primitive_count() const; + + /// Returns a slot number for given image name, or -1 for unknown name. + int get_image_name(char const *name) const; + + /// Returns slot number for given image name, even if it's unknown. + int set_image_name(char const *name); + + /** Finds image name based on it's slot number. Returns 0 for unknown slot + * numbers. */ + char const *name_for_image(int const image) const; + + /// Returns a result image name that is not in use inside this filter. + Glib::ustring get_new_result_name() const; + + SPFilterUnits filterUnits; + unsigned int filterUnits_set : 1; + SPFilterUnits primitiveUnits; + unsigned int primitiveUnits_set : 1; + NumberOptNumber filterRes; + SPFilterReference *href; + sigc::connection modified_connection; + + guint getRefCount(); + guint _refcount; + + Inkscape::Filters::Filter *_renderer; + + std::map<gchar *, int, ltstr>* _image_name; + int _image_number_next; + +protected: + void build(SPDocument* doc, Inkscape::XML::Node* repr) override; + void release() override; + + void child_added(Inkscape::XML::Node* child, Inkscape::XML::Node* ref) override; + void remove_child(Inkscape::XML::Node* child) override; + + void set(SPAttributeEnum key, const char* 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; +}; + +#endif /* !SP_FILTER_H_SEEN */ + +/* + 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 : |