Move classes derived from SPObject to own directory.

A lot of header clean-up.

1 files changed, 265 insertions, 0 deletions

diff --git a/src/object/sp-stop.cpp b/src/object/sp-stop.cpp
new file mode 100644
index 000000000..58746c951
--- /dev/null
+++ b/src/object/sp-stop.cpp
@@ -0,0 +1,265 @@
+/** @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, 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 = NULL;
+
+    this->offset = 0.0;
+    this->currentColor = false;
+    this->specified_color.set( 0x000000ff );
+    this->opacity = 1.0;
+}
+
+SPStop::~SPStop() {
+}
+
+void SPStop::build(SPDocument* doc, Inkscape::XML::Node* repr) {
+    SPObject::build(doc, repr);
+
+    this->readAttr( "offset" );
+    this->readAttr( "stop-color" );
+    this->readAttr( "stop-opacity" );
+    this->readAttr( "style" );
+    this->readAttr( "path" ); // For mesh
+}
+
+/**
+ * Virtual build: set stop attributes from its associated XML node.
+ */
+
+void SPStop::set(unsigned int key, const gchar* value) {
+    switch (key) {
+        case SP_ATTR_STYLE: {
+        /** \todo
+         * fixme: We are reading simple values 3 times during build (Lauris).
+         * \par
+         * We need presentation attributes etc.
+         * \par
+         * remove the hackish "style reading" from here: see comments in
+         * sp_object_get_style_property about the bugs in our current
+         * approach.  However, note that SPStyle doesn't currently have
+         * stop-color and stop-opacity properties.
+         */
+            {
+                gchar const *p = this->getStyleProperty( "stop-color", "black");
+                if (streq(p, "currentColor")) {
+                    this->currentColor = true;
+                } else {
+                    this->specified_color = SPStop::readStopColor( p );
+                }
+            }
+            {
+                gchar const *p = this->getStyleProperty( "stop-opacity", "1");
+                gdouble opacity = sp_svg_read_percentage(p, this->opacity);
+                this->opacity = opacity;
+            }
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_PROP_STOP_COLOR: {
+            {
+                gchar const *p = this->getStyleProperty( "stop-color", "black");
+                if (streq(p, "currentColor")) {
+                    this->currentColor = true;
+                } else {
+                    this->currentColor = false;
+                    this->specified_color = SPStop::readStopColor( p );
+                }
+            }
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_PROP_STOP_OPACITY: {
+            {
+                gchar const *p = this->getStyleProperty( "stop-opacity", "1");
+                gdouble opacity = sp_svg_read_percentage(p, this->opacity);
+                this->opacity = opacity;
+            }
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_ATTR_OFFSET: {
+            this->offset = sp_svg_read_percentage(value, 0.0);
+            this->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_PROP_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: {
+            SPObject::set(key, value);
+            break;
+        }
+    }
+}
+
+/**
+ * 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");
+    }
+
+    Glib::ustring colorStr = this->specified_color.toString();
+    gfloat opacity = this->opacity;
+
+    SPObject::write(xml_doc, repr, flags);
+
+    // Since we do a hackish style setting here (because SPStyle does not support stop-color and
+    // stop-opacity), we must do it AFTER calling the parent write method; otherwise
+    // sp_object_write would clear our style= attribute (bug 1695287)
+
+    Inkscape::CSSOStringStream os;
+    os << "stop-color:";
+    if (this->currentColor) {
+        os << "currentColor";
+    } else {
+        os << colorStr;
+    }
+    os << ";stop-opacity:" << opacity;
+    repr->setAttribute("style", os.str().c_str());
+    repr->setAttribute("stop-color", NULL);
+    repr->setAttribute("stop-opacity", NULL);
+    sp_repr_set_css_double(repr, "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 = 0;
+
+    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 = 0;
+
+    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::readStopColor(Glib::ustring const &styleStr, guint32 dfl) {
+    SPColor color(dfl);
+    SPIPaint paint;
+
+    paint.read( styleStr.c_str() );
+
+    if ( paint.isColor() ) {
+        color = paint.value.color;
+    }
+
+    return color;
+}
+
+SPColor SPStop::getEffectiveColor() const {
+    SPColor ret;
+
+    if (currentColor) {
+        char const *str = getStyleProperty("color", NULL);
+        /* Default value: arbitrarily black.  (SVG1.1 and CSS2 both say that the initial
+         * value depends on user agent, and don't give any further restrictions that I can
+         * see.) */
+        ret = readStopColor( str, 0 );
+    } else {
+        ret = specified_color;
+    }
+
+    return ret;
+}
+
+/**
+ * Return stop's color as 32bit value.
+ */
+guint32 SPStop::get_rgba32() const {
+    guint32 rgb0 = 0;
+
+    /* Default value: arbitrarily black.  (SVG1.1 and CSS2 both say that the initial
+     * value depends on user agent, and don't give any further restrictions that I can
+     * see.) */
+    if (this->currentColor) {
+        char const *str = this->getStyleProperty("color", NULL);
+
+        if (str) {
+            rgb0 = sp_svg_read_color(str, rgb0);
+        }
+
+        unsigned const alpha = static_cast<unsigned>(this->opacity * 0xff + 0.5);
+
+        g_return_val_if_fail((alpha & ~0xff) == 0, rgb0 | 0xff);
+
+        return rgb0 | alpha;
+    } else {
+        return this->specified_color.toRGBA32(this->opacity);
+    }
+}
+
+/*
+  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 :