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Diffstat (limited to '')
-rw-r--r-- | src/object/filters/pointlight.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/object/filters/pointlight.cpp b/src/object/filters/pointlight.cpp new file mode 100644 index 0000000..f305ac7 --- /dev/null +++ b/src/object/filters/pointlight.cpp @@ -0,0 +1,190 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** \file + * SVG <fepointlight> implementation. + */ +/* + * Authors: + * Hugo Rodrigues <haa.rodrigues@gmail.com> + * Niko Kiirala <niko@kiirala.com> + * Jean-Rene Reinhard <jr@komite.net> + * Abhishek Sharma + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +// Same directory +#include "pointlight.h" +#include "diffuselighting.h" +#include "specularlighting.h" + +#include <glib.h> + +#include "attributes.h" +#include "document.h" + + +#include "xml/node.h" +#include "xml/repr.h" + +SPFePointLight::SPFePointLight() + : SPObject(), x(0), x_set(FALSE), y(0), y_set(FALSE), z(0), z_set(FALSE) { +} + +SPFePointLight::~SPFePointLight() = default; + + +/** + * Reads the Inkscape::XML::Node, and initializes SPPointLight 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 SPFePointLight::build(SPDocument *document, Inkscape::XML::Node *repr) { + SPObject::build(document, repr); + + //Read values of key attributes from XML nodes into object. + this->readAttr(SPAttr::X); + this->readAttr(SPAttr::Y); + this->readAttr(SPAttr::Z); + +//is this necessary? + document->addResource("fepointlight", this); +} + +/** + * Drops any allocated memory. + */ +void SPFePointLight::release() { + if ( this->document ) { + // Unregister ourselves + this->document->removeResource("fepointlight", this); + } + +//TODO: release resources here +} + +/** + * Sets a specific value in the SPFePointLight. + */ +void SPFePointLight::set(SPAttr key, gchar const *value) { + gchar *end_ptr; + + switch (key) { + case SPAttr::X: + end_ptr = nullptr; + + if (value) { + this->x = g_ascii_strtod(value, &end_ptr); + + if (end_ptr) { + this->x_set = TRUE; + } + } + + if (!value || !end_ptr) { + this->x = 0; + this->x_set = FALSE; + } + + if (this->parent && + (SP_IS_FEDIFFUSELIGHTING(this->parent) || + SP_IS_FESPECULARLIGHTING(this->parent))) { + this->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SPAttr::Y: + end_ptr = nullptr; + + if (value) { + this->y = g_ascii_strtod(value, &end_ptr); + + if (end_ptr) { + this->y_set = TRUE; + } + } + + if (!value || !end_ptr) { + this->y = 0; + this->y_set = FALSE; + } + + if (this->parent && + (SP_IS_FEDIFFUSELIGHTING(this->parent) || + SP_IS_FESPECULARLIGHTING(this->parent))) { + this->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SPAttr::Z: + end_ptr = nullptr; + + if (value) { + this->z = g_ascii_strtod(value, &end_ptr); + + if (end_ptr) { + this->z_set = TRUE; + } + } + + if (!value || !end_ptr) { + this->z = 0; + this->z_set = FALSE; + } + + if (this->parent && + (SP_IS_FEDIFFUSELIGHTING(this->parent) || + SP_IS_FESPECULARLIGHTING(this->parent))) { + this->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + default: + // See if any parents need this value. + SPObject::set(key, value); + break; + } +} + +/** + * * Receives update notifications. + * */ +void SPFePointLight::update(SPCtx *ctx, guint flags) { + if (flags & SP_OBJECT_MODIFIED_FLAG) { + /* do something to trigger redisplay, updates? */ + this->readAttr(SPAttr::X); + this->readAttr(SPAttr::Y); + this->readAttr(SPAttr::Z); + } + + SPObject::update(ctx, flags); +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +Inkscape::XML::Node* SPFePointLight::write(Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags) { + if (!repr) { + repr = this->getRepr()->duplicate(doc); + } + + if (this->x_set) + repr->setAttributeCssDouble("x", this->x); + if (this->y_set) + repr->setAttributeCssDouble("y", this->y); + if (this->z_set) + repr->setAttributeCssDouble("z", this->z); + + SPObject::write(doc, repr, flags); + + return repr; +} + +/* + 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 : |