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Diffstat (limited to '')
-rw-r--r-- | src/object/filters/merge.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/object/filters/merge.cpp b/src/object/filters/merge.cpp new file mode 100644 index 0000000..2fe993b --- /dev/null +++ b/src/object/filters/merge.cpp @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** \file + * SVG <feMerge> implementation. + * + */ +/* + * Authors: + * hugo Rodrigues <haa.rodrigues@gmail.com> + * + * Copyright (C) 2006 Hugo Rodrigues + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include "attributes.h" +#include "svg/svg.h" +#include "xml/repr.h" + +#include "merge.h" +#include "mergenode.h" +#include "display/nr-filter.h" +#include "display/nr-filter-merge.h" + +SPFeMerge::SPFeMerge() : SPFilterPrimitive() { +} + +SPFeMerge::~SPFeMerge() = default; + +/** + * Reads the Inkscape::XML::Node, and initializes SPFeMerge variables. For this to get called, + * our name must be associated with a repr via "sp_object_type_register". Best done through + * sp-object-repr.cpp's repr_name_entries array. + */ +void SPFeMerge::build(SPDocument *document, Inkscape::XML::Node *repr) { + SPFilterPrimitive::build(document, repr); +} + +/** + * Drops any allocated memory. + */ +void SPFeMerge::release() { + SPFilterPrimitive::release(); +} + +/** + * Sets a specific value in the SPFeMerge. + */ +void SPFeMerge::set(SPAttr key, gchar const *value) { + switch(key) { + /*DEAL WITH SETTING ATTRIBUTES HERE*/ + default: + SPFilterPrimitive::set(key, value); + break; + } +} + +/** + * Receives update notifications. + */ +void SPFeMerge::update(SPCtx *ctx, guint flags) { + if (flags & SP_OBJECT_MODIFIED_FLAG) { + this->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + + SPFilterPrimitive::update(ctx, flags); +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +Inkscape::XML::Node* SPFeMerge::write(Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags) { + /* TODO: Don't just clone, but create a new repr node and write all + * relevant values into it. And child nodes, too! */ + if (!repr) { + repr = this->getRepr()->duplicate(doc); + } + + + SPFilterPrimitive::write(doc, repr, flags); + + return repr; +} + +void SPFeMerge::build_renderer(Inkscape::Filters::Filter* filter) { + g_assert(filter != nullptr); + + int primitive_n = filter->add_primitive(Inkscape::Filters::NR_FILTER_MERGE); + Inkscape::Filters::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n); + Inkscape::Filters::FilterMerge *nr_merge = dynamic_cast<Inkscape::Filters::FilterMerge*>(nr_primitive); + g_assert(nr_merge != nullptr); + + this->renderer_common(nr_primitive); + + int in_nr = 0; + + for(auto& input: children) { + if (SP_IS_FEMERGENODE(&input)) { + SPFeMergeNode *node = SP_FEMERGENODE(&input); + nr_merge->set_input(in_nr, node->input); + in_nr++; + } + } +} + + +/* + 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 : |