diff options
Diffstat (limited to 'src/object/filters/flood.cpp')
| -rw-r--r-- | src/object/filters/flood.cpp | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/src/object/filters/flood.cpp b/src/object/filters/flood.cpp new file mode 100644 index 0000000..9e179bf --- /dev/null +++ b/src/object/filters/flood.cpp @@ -0,0 +1,180 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** \file + * SVG <feFlood> implementation. + * + */ +/* + * Authors: + * hugo Rodrigues <haa.rodrigues@gmail.com> + * Abhishek Sharma + * + * Copyright (C) 2006 Hugo Rodrigues + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include "flood.h" + +#include "strneq.h" +#include "attributes.h" + +#include "svg/svg.h" +#include "svg/svg-color.h" + +#include "display/nr-filter.h" +#include "display/nr-filter-flood.h" + +#include "xml/repr.h" + +SPFeFlood::SPFeFlood() : SPFilterPrimitive() { + this->color = 0; + + this->opacity = 1; + this->icc = nullptr; +} + +SPFeFlood::~SPFeFlood() = default; + +/** + * Reads the Inkscape::XML::Node, and initializes SPFeFlood 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 SPFeFlood::build(SPDocument *document, Inkscape::XML::Node *repr) { + SPFilterPrimitive::build(document, repr); + + /*LOAD ATTRIBUTES FROM REPR HERE*/ + this->readAttr(SPAttr::FLOOD_OPACITY); + this->readAttr(SPAttr::FLOOD_COLOR); +} + +/** + * Drops any allocated memory. + */ +void SPFeFlood::release() { + SPFilterPrimitive::release(); +} + +/** + * Sets a specific value in the SPFeFlood. + */ +void SPFeFlood::set(SPAttr key, gchar const *value) { + gchar const *cend_ptr = nullptr; + gchar *end_ptr = nullptr; + guint32 read_color; + double read_num; + bool dirty = false; + + switch(key) { + /*DEAL WITH SETTING ATTRIBUTES HERE*/ + case SPAttr::FLOOD_COLOR: + cend_ptr = nullptr; + read_color = sp_svg_read_color(value, &cend_ptr, 0xffffffff); + + if (cend_ptr && read_color != this->color){ + this->color = read_color; + dirty=true; + } + + if (cend_ptr){ + while (g_ascii_isspace(*cend_ptr)) { + ++cend_ptr; + } + + if (strneq(cend_ptr, "icc-color(", 10)) { + if (!this->icc) { + this->icc = new SVGICCColor(); + } + + if ( ! sp_svg_read_icc_color( cend_ptr, this->icc ) ) { + delete this->icc; + this->icc = nullptr; + } + + dirty = true; + } + } + + if (dirty) { + this->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SPAttr::FLOOD_OPACITY: + if (value) { + read_num = g_ascii_strtod(value, &end_ptr); + + if (end_ptr != nullptr) { + if (*end_ptr) { + g_warning("Unable to convert \"%s\" to number", value); + read_num = 1; + } + } + } else { + read_num = 1; + } + + if (read_num != this->opacity) { + this->opacity = read_num; + this->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + default: + SPFilterPrimitive::set(key, value); + break; + } +} + +/** + * Receives update notifications. + */ +void SPFeFlood::update(SPCtx *ctx, guint flags) { + if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG | + SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) { + + /* do something to trigger redisplay, updates? */ + + } + + SPFilterPrimitive::update(ctx, flags); +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +Inkscape::XML::Node* SPFeFlood::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 */ + if (!repr) { + repr = this->getRepr()->duplicate(doc); + } + + SPFilterPrimitive::write(doc, repr, flags); + + return repr; +} + +void SPFeFlood::build_renderer(Inkscape::Filters::Filter* filter) { + g_assert(filter != nullptr); + + int primitive_n = filter->add_primitive(Inkscape::Filters::NR_FILTER_FLOOD); + Inkscape::Filters::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n); + Inkscape::Filters::FilterFlood *nr_flood = dynamic_cast<Inkscape::Filters::FilterFlood*>(nr_primitive); + g_assert(nr_flood != nullptr); + + this->renderer_common(nr_primitive); + + nr_flood->set_opacity(this->opacity); + nr_flood->set_color(this->color); + nr_flood->set_icc(this->icc); +} + +/* + 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 : |