1 files changed, 61 insertions, 0 deletions
diff --git a/src/extension/internal/bitmap/shade.cpp b/src/extension/internal/bitmap/shade.cpp
new file mode 100644
index 0000000..4a4f907
--- /dev/null
+++ b/src/extension/internal/bitmap/shade.cpp
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2007 Authors:
+ *   Christopher Brown <audiere@gmail.com>
+ *   Ted Gould <ted@gould.cx>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "extension/effect.h"
+#include "extension/system.h"
+
+#include "shade.h"
+#include <Magick++.h>
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+namespace Bitmap {
+	
+void
+Shade::applyEffect(Magick::Image* image) {
+	image->shade(_azimuth, _elevation, !_colorShading);
+	// I don't know why, but I have to invert colorShading here
+}
+
+void
+Shade::refreshParameters(Inkscape::Extension::Effect* module) {
+	_azimuth = module->get_param_float("azimuth");
+	_elevation = module->get_param_float("elevation");
+	_colorShading = module->get_param_bool("colorShading");
+}
+
+#include "../clear-n_.h"
+
+void
+Shade::init()
+{
+    // clang-format off
+    Inkscape::Extension::build_from_mem(
+        "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+            "<name>" N_("Shade") "</name>\n"
+            "<id>org.inkscape.effect.bitmap.shade</id>\n"
+            "<param name=\"azimuth\" gui-text=\"" N_("Azimuth:") "\" type=\"float\" min=\"-180\" max=\"180\">30</param>\n"
+            "<param name=\"elevation\" gui-text=\"" N_("Elevation:") "\" type=\"float\" min=\"-180\" max=\"180\">30</param>\n"
+            "<param name=\"colorShading\" gui-text=\"" N_("Colored Shading") "\" type=\"bool\">false</param>\n"
+            "<effect>\n"
+                "<object-type>all</object-type>\n"
+                "<effects-menu>\n"
+                    "<submenu name=\"" N_("Raster") "\" />\n"
+                "</effects-menu>\n"
+                "<menu-tip>" N_("Shade selected bitmap(s) simulating distant light source") "</menu-tip>\n"
+            "</effect>\n"
+        "</inkscape-extension>\n", new Shade());
+    // clang-format on
+}
+
+}; /* namespace Bitmap */
+}; /* namespace Internal */
+}; /* namespace Extension */
+}; /* namespace Inkscape */