1 files changed, 73 insertions, 0 deletions
diff --git a/src/extension/internal/bitmap/channel.cpp b/src/extension/internal/bitmap/channel.cpp
new file mode 100644
index 000000000..708638371
--- /dev/null
+++ b/src/extension/internal/bitmap/channel.cpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2007 Authors:
+ *   Christopher Brown <audiere@gmail.com>
+ *   Ted Gould <ted@gould.cx>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "extension/effect.h"
+#include "extension/system.h"
+
+#include "channel.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+namespace Bitmap {
+	
+void
+Channel::applyEffect(Magick::Image *image) {	
+	Magick::ChannelType layer = Magick::UndefinedChannel;
+	if (!strcmp(_layerName,      "Red Channel"))		layer = Magick::RedChannel;
+	else if (!strcmp(_layerName, "Green Channel"))		layer = Magick::GreenChannel;
+	else if (!strcmp(_layerName, "Blue Channel"))		layer = Magick::BlueChannel;
+	else if (!strcmp(_layerName, "Cyan Channel"))		layer = Magick::CyanChannel;
+	else if (!strcmp(_layerName, "Magenta Channel"))	layer = Magick::MagentaChannel;
+	else if (!strcmp(_layerName, "Yellow Channel"))		layer = Magick::YellowChannel;
+	else if (!strcmp(_layerName, "Black Channel"))		layer = Magick::BlackChannel;
+	else if (!strcmp(_layerName, "Opacity Channel"))	layer = Magick::OpacityChannel;
+	else if (!strcmp(_layerName, "Matte Channel"))		layer = Magick::MatteChannel;		
+	
+	image->channel(layer);
+}
+
+void
+Channel::refreshParameters(Inkscape::Extension::Effect *module) {	
+	_layerName = module->get_param_enum("layer");
+}
+
+#include "../clear-n_.h"
+
+void
+Channel::init(void)
+{
+	Inkscape::Extension::build_from_mem(
+		"<inkscape-extension>\n"
+			"<name>" N_("Channel") "</name>\n"
+			"<id>org.inkscape.effect.bitmap.channel</id>\n"
+			"<param name=\"layer\" gui-text=\"" N_("Layer") "\" type=\"enum\" >\n"
+				"<item value='Red Channel'>Red Channel</item>\n"
+				"<item value='Green Channel'>Green Channel</item>\n"
+				"<item value='Blue Channel'>Blue Channel</item>\n"
+				"<item value='Cyan Channel'>Cyan Channel</item>\n"
+				"<item value='Magenta Channel'>Magenta Channel</item>\n"
+				"<item value='Yellow Channel'>Yellow Channel</item>\n"
+				"<item value='Black Channel'>Black Channel</item>\n"
+				"<item value='Opacity Channel'>Opacity Channel</item>\n"
+				"<item value='Matte Channel'>Matte Channel</item>\n"
+			"</param>\n"
+			"<effect>\n"
+				"<object-type>all</object-type>\n"
+				"<effects-menu>\n"
+					"<submenu name=\"" N_("Raster") "\" />\n"
+				"</effects-menu>\n"
+				"<menu-tip>" N_("Apply Channel Effect") "</menu-tip>\n"
+			"</effect>\n"
+		"</inkscape-extension>\n", new Channel());
+}
+
+}; /* namespace Bitmap */
+}; /* namespace Internal */
+}; /* namespace Extension */
+}; /* namespace Inkscape */