r16217@tres: ted | 2007-08-10 10:36:27 -0700

 ImageMagick effects patch from Chris Brown.  Google Summer of Code 
 project.

(bzr r3450)

1 files changed, 53 insertions, 0 deletions

diff --git a/src/extension/internal/bitmap/opacity.cpp b/src/extension/internal/bitmap/opacity.cpp
new file mode 100644
index 000000000..af2c3fe26
--- /dev/null
+++ b/src/extension/internal/bitmap/opacity.cpp
@@ -0,0 +1,53 @@
+/*
+ * 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 "opacity.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+namespace Bitmap {
+	
+void
+Opacity::applyEffect(Magick::Image* image) {
+	Magick::Quantum opacity = Magick::Color::scaleDoubleToQuantum(_opacity / 100.0);
+	image->opacity(opacity);
+}
+
+void
+Opacity::refreshParameters(Inkscape::Extension::Effect* module) {
+	_opacity = module->get_param_float("opacity");
+}
+
+#include "../clear-n_.h"
+
+void
+Opacity::init(void)
+{
+	Inkscape::Extension::build_from_mem(
+		"<inkscape-extension>\n"
+			"<name>" N_("Opacity") "</name>\n"
+			"<id>org.inkscape.effect.bitmap.opacity</id>\n"
+			"<param name=\"opacity\" gui-text=\"" N_("Opacity") "\" type=\"float\" min=\"0.0\" max=\"100.0\">80.0</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 Opacity Effect") "</menu-tip>\n"
+			"</effect>\n"
+		"</inkscape-extension>\n", new Opacity());
+}
+
+}; /* namespace Bitmap */
+}; /* namespace Internal */
+}; /* namespace Extension */
+}; /* namespace Inkscape */