Filters. New Customizable Colored Drop Shadow filter (experimental).

diff --git a/src/extension/internal/filter/drop-shadow.h b/src/extension/internal/filter/drop-shadow.h
index 12f0c60559a4b5e57f9a726d32226521bb2faa4c..914d9cf9d21464ba08b10a824a358a36bc124023 100644 (file)
--- a/src/extension/internal/filter/drop-shadow.h
+++ b/src/extension/internal/filter/drop-shadow.h
@@ -141,6 +141,71 @@ DropGlow::get_filter_text (Inkscape::Extension::Extension * ext)
        return _filter;
 };
 
+class ColorizableDropShadow : public Inkscape::Extension::Internal::Filter::Filter {
+protected:
+       virtual gchar const * get_filter_text (Inkscape::Extension::Extension * ext);
+
+public:
+       ColorizableDropShadow ( ) : Filter() { };
+       virtual ~ColorizableDropShadow ( ) { if (_filter != NULL) g_free((void *)_filter); return; }
+
+       static void init (void) {
+               Inkscape::Extension::build_from_mem(
+                       "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+                               "<name>" N_("Drop shadow, color -EXP-") "</name>\n"
+                               "<id>org.inkscape.effect.filter.colorizable-drop-shadow</id>\n"
+                               "<param name=\"blur\" gui-text=\"" N_("Blur radius (px):") "\" type=\"float\" min=\"0.0\" max=\"200.0\">3.0</param>\n"
+                               "<param name=\"xoffset\" gui-text=\"" N_("Horizontal offset (px):") "\" type=\"float\" min=\"-50.0\" max=\"50.0\">6.0</param>\n"
+                               "<param name=\"yoffset\" gui-text=\"" N_("Vertical offset (px):") "\" type=\"float\" min=\"-50.0\" max=\"50.0\">6.0</param>\n"
+                               "<param name=\"color\" gui-text=\"" N_("Color") "\" type=\"color\">0</param>\n"
+                               "<effect>\n"
+                                       "<object-type>all</object-type>\n"
+                                       "<effects-menu>\n"
+                                               "<submenu name=\"" N_("Filters") "\">\n"
+                                               "<submenu name=\"" N_("Shadows and Glows") "\"/>\n"
+                             "</submenu>\n"
+                                       "</effects-menu>\n"
+                                       "<menu-tip>" N_("Colorizable Drop shadow") "</menu-tip>\n"
+                               "</effect>\n"
+                       "</inkscape-extension>\n", new ColorizableDropShadow());
+       };
+
+};
+
+gchar const *
+ColorizableDropShadow::get_filter_text (Inkscape::Extension::Extension * ext)
+{
+       if (_filter != NULL) g_free((void *)_filter);
+
+    std::ostringstream blur;
+    std::ostringstream a;
+    std::ostringstream r;
+    std::ostringstream g;
+    std::ostringstream b;
+    std::ostringstream x;
+    std::ostringstream y;
+
+    guint32 color = ext->get_param_color("color");
+
+    blur << ext->get_param_float("blur");
+    x << ext->get_param_float("xoffset");
+    y << ext->get_param_float("yoffset");
+    a << (color & 0xff) / 255.0F;
+    r << ((color >> 24) & 0xff);
+    g << ((color >> 16) & 0xff);
+    b << ((color >>  8) & 0xff);
+
+       _filter = g_strdup_printf(
+               "<filter xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" color-interpolation-filters=\"sRGB\" height=\"1.2\" width=\"1.2\" y=\"-0.1\" x=\"-0.1\" inkscape:label=\"Drop shadow, color -EXP-\">\n"
+                       "<feFlood flood-opacity=\"%s\" result=\"flood\" flood-color=\"rgb(%s,%s,%s)\" />\n"
+                       "<feComposite in2=\"SourceGraphic\" in=\"flood\" result=\"composite\" operator=\"in\" />\n"
+                       "<feGaussianBlur result=\"blur\" stdDeviation=\"%s\" in=\"composite\" />\n"
+                       "<feOffset result=\"offsetBlur\" dx=\"%s\" dy=\"%s\" />\n"
+               "<feComposite in2=\"offsetBlur\" in=\"SourceGraphic\" operator=\"over\" result=\"compositeBlur\" />\n"
+               "</filter>\n", a.str().c_str(), r.str().c_str(), g.str().c_str(), b.str().c_str(), blur.str().c_str(), x.str().c_str(), y.str().c_str());
+
+       return _filter;
+};
 }; /* namespace Filter */
 }; /* namespace Internal */
 }; /* namespace Extension */

diff --git a/src/extension/internal/filter/filter-all.cpp b/src/extension/internal/filter/filter-all.cpp
index b4b8caf81d3d67a8c4e3bd80b621aa7aad9a9bb1..6d61501fb5e94609864f66f2f9481aa3fc2380de 100644 (file)
--- a/src/extension/internal/filter/filter-all.cpp
+++ b/src/extension/internal/filter/filter-all.cpp
@@ -23,6 +23,7 @@ Filter::filters_all (void )
        // Here come the filters which are coded in C++ in order to present a parameters dialog
        DropShadow::init();
        DropGlow::init();
+    ColorizableDropShadow::init();
        Snow::init();
 
        // Here come the rest of the filters that are read from SVG files in share/filters and