summaryrefslogtreecommitdiffstats
path: root/src/object/filters/spotlight.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/object/filters/spotlight.cpp')
-rw-r--r--src/object/filters/spotlight.cpp320
1 files changed, 320 insertions, 0 deletions
diff --git a/src/object/filters/spotlight.cpp b/src/object/filters/spotlight.cpp
new file mode 100644
index 0000000..cea258b
--- /dev/null
+++ b/src/object/filters/spotlight.cpp
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** \file
+ * SVG <fespotlight> 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 "spotlight.h"
+#include "diffuselighting.h"
+#include "specularlighting.h"
+
+#include "attributes.h"
+#include "document.h"
+
+#include "xml/repr.h"
+
+SPFeSpotLight::SPFeSpotLight()
+ : SPObject(), x(0), x_set(FALSE), y(0), y_set(FALSE), z(0), z_set(FALSE), pointsAtX(0), pointsAtX_set(FALSE),
+ pointsAtY(0), pointsAtY_set(FALSE), pointsAtZ(0), pointsAtZ_set(FALSE),
+ specularExponent(1), specularExponent_set(FALSE), limitingConeAngle(90),
+ limitingConeAngle_set(FALSE)
+{
+}
+
+SPFeSpotLight::~SPFeSpotLight() = 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 SPFeSpotLight::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);
+ this->readAttr(SPAttr::POINTSATX);
+ this->readAttr(SPAttr::POINTSATY);
+ this->readAttr(SPAttr::POINTSATZ);
+ this->readAttr(SPAttr::SPECULAREXPONENT);
+ this->readAttr(SPAttr::LIMITINGCONEANGLE);
+
+//is this necessary?
+ document->addResource("fespotlight", this);
+}
+
+/**
+ * Drops any allocated memory.
+ */
+void SPFeSpotLight::release() {
+ if ( this->document ) {
+ // Unregister ourselves
+ this->document->removeResource("fespotlight", this);
+ }
+
+//TODO: release resources here
+}
+
+/**
+ * Sets a specific value in the SPFeSpotLight.
+ */
+void SPFeSpotLight::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;
+ case SPAttr::POINTSATX:
+ end_ptr = nullptr;
+
+ if (value) {
+ this->pointsAtX = g_ascii_strtod(value, &end_ptr);
+
+ if (end_ptr) {
+ this->pointsAtX_set = TRUE;
+ }
+ }
+
+ if(!value || !end_ptr) {
+ this->pointsAtX = 0;
+ this->pointsAtX_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::POINTSATY:
+ end_ptr = nullptr;
+
+ if (value) {
+ this->pointsAtY = g_ascii_strtod(value, &end_ptr);
+
+ if (end_ptr) {
+ this->pointsAtY_set = TRUE;
+ }
+ }
+
+ if(!value || !end_ptr) {
+ this->pointsAtY = 0;
+ this->pointsAtY_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::POINTSATZ:
+ end_ptr = nullptr;
+
+ if (value) {
+ this->pointsAtZ = g_ascii_strtod(value, &end_ptr);
+
+ if (end_ptr) {
+ this->pointsAtZ_set = TRUE;
+ }
+ }
+
+ if(!value || !end_ptr) {
+ this->pointsAtZ = 0;
+ this->pointsAtZ_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::SPECULAREXPONENT:
+ end_ptr = nullptr;
+
+ if (value) {
+ this->specularExponent = g_ascii_strtod(value, &end_ptr);
+
+ if (end_ptr) {
+ this->specularExponent_set = TRUE;
+ }
+ }
+
+ if(!value || !end_ptr) {
+ this->specularExponent = 1;
+ this->specularExponent_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::LIMITINGCONEANGLE:
+ end_ptr = nullptr;
+
+ if (value) {
+ this->limitingConeAngle = g_ascii_strtod(value, &end_ptr);
+
+ if (end_ptr) {
+ this->limitingConeAngle_set = TRUE;
+ }
+ }
+
+ if(!value || !end_ptr) {
+ this->limitingConeAngle = 90;
+ this->limitingConeAngle_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 SPFeSpotLight::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);
+ this->readAttr(SPAttr::POINTSATX);
+ this->readAttr(SPAttr::POINTSATY);
+ this->readAttr(SPAttr::POINTSATZ);
+ this->readAttr(SPAttr::SPECULAREXPONENT);
+ this->readAttr(SPAttr::LIMITINGCONEANGLE);
+ }
+
+ SPObject::update(ctx, flags);
+}
+
+/**
+ * Writes its settings to an incoming repr object, if any.
+ */
+Inkscape::XML::Node* SPFeSpotLight::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);
+ if (this->pointsAtX_set)
+ repr->setAttributeCssDouble("pointsAtX", this->pointsAtX);
+ if (this->pointsAtY_set)
+ repr->setAttributeCssDouble("pointsAtY", this->pointsAtY);
+ if (this->pointsAtZ_set)
+ repr->setAttributeCssDouble("pointsAtZ", this->pointsAtZ);
+ if (this->specularExponent_set)
+ repr->setAttributeCssDouble("specularExponent", this->specularExponent);
+ if (this->limitingConeAngle_set)
+ repr->setAttributeCssDouble("limitingConeAngle", this->limitingConeAngle);
+
+ 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 :