1 files changed, 171 insertions, 0 deletions
diff --git a/src/object/sp-stop.cpp b/src/object/sp-stop.cpp
new file mode 100644
index 0000000..f094383
--- /dev/null
+++ b/src/object/sp-stop.cpp
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * @gradient stop class.
+ */
+/* Authors:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   bulia byak
+ *   Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
+ *   Jon A. Cruz <jon@joncruz.org>
+ *
+ * Copyright (C) 1999,2005 authors
+ * Copyright (C) 2010 Jon A. Cruz
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+
+#include "sp-stop.h"
+#include "style.h"
+
+#include "attributes.h"
+#include "streq.h"
+#include "svg/svg.h"
+#include "svg/svg-color.h"
+#include "svg/css-ostringstream.h"
+
+SPStop::SPStop() : SPObject() {
+    this->path_string = nullptr;
+    this->offset = 0.0;
+}
+
+SPStop::~SPStop() = default;
+
+void SPStop::build(SPDocument* doc, Inkscape::XML::Node* repr) {
+    this->readAttr(SPAttr::STYLE);
+    this->readAttr(SPAttr::OFFSET);
+    this->readAttr(SPAttr::STOP_PATH); // For mesh
+
+    SPObject::build(doc, repr);
+}
+
+/**
+ * Virtual build: set stop attributes from its associated XML node.
+ */
+
+void SPStop::set(SPAttr key, const gchar* value) {
+    switch (key) {
+        case SPAttr::OFFSET: {
+            this->offset = sp_svg_read_percentage(value, 0.0);
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SPAttr::STOP_PATH: {
+            if (value) {
+                this->path_string = new Glib::ustring( value );
+                //Geom::PathVector pv = sp_svg_read_pathv(value);
+                //SPCurve *curve = new SPCurve(pv);
+                //if( curve ) {
+                    // std::cout << "Got Curve" << std::endl;
+                    //curve->unref();
+                //}
+                this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
+            break;
+        }
+        default: {
+            if (SP_ATTRIBUTE_IS_CSS(key)) {
+                this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            } else {
+                SPObject::set(key, value);
+            }
+            // This makes sure that the parent sp-gradient is updated.
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+    }
+}
+
+void SPStop::modified(guint flags)
+{
+    if (parent && !(flags & SP_OBJECT_PARENT_MODIFIED_FLAG)) {
+        parent->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+    }
+}
+
+
+/**
+ * Virtual set: set attribute to value.
+ */
+
+Inkscape::XML::Node* SPStop::write(Inkscape::XML::Document* xml_doc, Inkscape::XML::Node* repr, guint flags) {
+    if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
+        repr = xml_doc->createElement("svg:stop");
+    }
+
+    SPObject::write(xml_doc, repr, flags);
+    repr->setAttributeCssDouble("offset", this->offset);
+    /* strictly speaking, offset an SVG <number> rather than a CSS one, but exponents make no sense
+     * for offset proportions. */
+
+    return repr;
+}
+
+/**
+ * Virtual write: write object attributes to repr.
+ */
+
+// A stop might have some non-stop siblings
+SPStop* SPStop::getNextStop() {
+    SPStop *result = nullptr;
+
+    for (SPObject* obj = getNext(); obj && !result; obj = obj->getNext()) {
+        if (SP_IS_STOP(obj)) {
+            result = SP_STOP(obj);
+        }
+    }
+
+    return result;
+}
+
+SPStop* SPStop::getPrevStop() {
+    SPStop *result = nullptr;
+
+    for (SPObject* obj = getPrev(); obj; obj = obj->getPrev()) {
+        // The closest previous SPObject that is an SPStop *should* be ourself.
+        if (SP_IS_STOP(obj)) {
+            SPStop* stop = SP_STOP(obj);
+            // Sanity check to ensure we have a proper sibling structure.
+            if (stop->getNextStop() == this) {
+                result = stop;
+            } else {
+                g_warning("SPStop previous/next relationship broken");
+            }
+            break;
+        }
+    }
+
+    return result;
+}
+
+SPColor SPStop::getColor() const
+{
+    if (style->stop_color.currentcolor) {
+        return style->color.value.color;
+    }
+    return style->stop_color.value.color;
+}
+
+gfloat SPStop::getOpacity() const
+{
+    return SP_SCALE24_TO_FLOAT(style->stop_opacity.value);
+}
+
+/**
+ * Return stop's color as 32bit value.
+ */
+guint32 SPStop::get_rgba32() const
+{
+    return getColor().toRGBA32(getOpacity());
+}
+
+/*
+  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 :