Merged PaintServer and subclasses; moved Gradient classes to own files.

(bzr r11608.1.82)

1 files changed, 194 insertions, 1 deletions

diff --git a/src/sp-stop.cpp b/src/sp-stop.cpp
index 0c0a3b03a..71d06ced9 100644
--- a/src/sp-stop.cpp
+++ b/src/sp-stop.cpp
@@ -17,6 +17,177 @@
 #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"
+#include "xml/repr.h"
+
+#include "sp-factory.h"
+
+namespace {
+	SPObject* createStop() {
+		return new SPStop();
+	}
+
+	bool stopRegistered = SPFactory::instance().registerObject("svg:stop", createStop);
+}
+
+SPStop::SPStop() : SPObject(), CObject(this) {
+	delete this->cobject;
+	this->cobject = this;
+
+	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) {
+	SPStop* object = this;
+
+    CObject::build(doc, repr);
+
+    object->readAttr( "offset" );
+    object->readAttr( "stop-color" );
+    object->readAttr( "stop-opacity" );
+    object->readAttr( "style" );
+    object->readAttr( "path" ); // For mesh
+}
+
+/**
+ * Virtual build: set stop attributes from its associated XML node.
+ */
+
+void SPStop::set(unsigned int key, const gchar* value) {
+	SPStop* object = this;
+
+    SPStop *stop = SP_STOP(object);
+
+    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 = object->getStyleProperty( "stop-color", "black");
+                if (streq(p, "currentColor")) {
+                    stop->currentColor = true;
+                } else {
+                    stop->specified_color = SPStop::readStopColor( p );
+                }
+            }
+            {
+                gchar const *p = object->getStyleProperty( "stop-opacity", "1");
+                gdouble opacity = sp_svg_read_percentage(p, stop->opacity);
+                stop->opacity = opacity;
+            }
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_PROP_STOP_COLOR: {
+            {
+                gchar const *p = object->getStyleProperty( "stop-color", "black");
+                if (streq(p, "currentColor")) {
+                    stop->currentColor = true;
+                } else {
+                    stop->currentColor = false;
+                    stop->specified_color = SPStop::readStopColor( p );
+                }
+            }
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_PROP_STOP_OPACITY: {
+            {
+                gchar const *p = object->getStyleProperty( "stop-opacity", "1");
+                gdouble opacity = sp_svg_read_percentage(p, stop->opacity);
+                stop->opacity = opacity;
+            }
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_ATTR_OFFSET: {
+            stop->offset = sp_svg_read_percentage(value, 0.0);
+            object->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+            break;
+        }
+        case SP_PROP_STOP_PATH: {
+            if (value) {
+                stop->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();
+                //}
+            }
+            break;
+        }
+        default: {
+            CObject::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) {
+	SPStop* object = this;
+
+    SPStop *stop = SP_STOP(object);
+
+    if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
+        repr = xml_doc->createElement("svg:stop");
+    }
+
+    Glib::ustring colorStr = stop->specified_color.toString();
+    gfloat opacity = stop->opacity;
+
+    CObject::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 (stop->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", stop->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()
 {
@@ -80,7 +251,29 @@ SPColor SPStop::getEffectiveColor() const
     return ret;
 }
 
-
+/**
+ * Return stop's color as 32bit value.
+ */
+guint32
+sp_stop_get_rgba32(SPStop const *const stop)
+{
+    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 (stop->currentColor) {
+        char const *str = stop->getStyleProperty( "color", NULL);
+        if (str) {
+            rgb0 = sp_svg_read_color(str, rgb0);
+        }
+        unsigned const alpha = static_cast<unsigned>(stop->opacity * 0xff + 0.5);
+        g_return_val_if_fail((alpha & ~0xff) == 0,
+                             rgb0 | 0xff);
+        return rgb0 | alpha;
+    } else {
+        return stop->specified_color.toRGBA32( stop->opacity );
+    }
+}
 
 /*
   Local Variables: