From 35a96bde514a8897f6f0fcc41c5833bf63df2e2a Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 18:29:01 +0200
Subject: Adding upstream version 1.0.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/extension/internal/bitmap/levelChannel.cpp | 82 ++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 src/extension/internal/bitmap/levelChannel.cpp

(limited to 'src/extension/internal/bitmap/levelChannel.cpp')

diff --git a/src/extension/internal/bitmap/levelChannel.cpp b/src/extension/internal/bitmap/levelChannel.cpp
new file mode 100644
index 0000000..497d6ce
--- /dev/null
+++ b/src/extension/internal/bitmap/levelChannel.cpp
@@ -0,0 +1,82 @@
+// 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 "levelChannel.h"
+#include <Magick++.h>
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+namespace Bitmap {
+	
+void
+LevelChannel::applyEffect(Magick::Image* image) {
+	Magick::ChannelType channel = Magick::UndefinedChannel;
+	if (!strcmp(_channelName,      "Red Channel"))		channel = Magick::RedChannel;
+	else if (!strcmp(_channelName, "Green Channel"))	channel = Magick::GreenChannel;
+	else if (!strcmp(_channelName, "Blue Channel"))		channel = Magick::BlueChannel;
+	else if (!strcmp(_channelName, "Cyan Channel"))		channel = Magick::CyanChannel;
+	else if (!strcmp(_channelName, "Magenta Channel"))	channel = Magick::MagentaChannel;
+	else if (!strcmp(_channelName, "Yellow Channel"))	channel = Magick::YellowChannel;
+	else if (!strcmp(_channelName, "Black Channel"))	channel = Magick::BlackChannel;
+	else if (!strcmp(_channelName, "Opacity Channel"))	channel = Magick::OpacityChannel;
+	else if (!strcmp(_channelName, "Matte Channel"))	channel = Magick::MatteChannel;
+	Magick::Quantum black_point = Magick::Color::scaleDoubleToQuantum(_black_point / 100.0);
+	Magick::Quantum white_point = Magick::Color::scaleDoubleToQuantum(_white_point / 100.0);
+	image->levelChannel(channel, black_point, white_point, _mid_point);
+}
+
+void
+LevelChannel::refreshParameters(Inkscape::Extension::Effect* module) {
+	_channelName = module->get_param_optiongroup("channel");
+	_black_point = module->get_param_float("blackPoint");
+	_white_point = module->get_param_float("whitePoint");
+	_mid_point = module->get_param_float("midPoint");
+}
+
+#include "../clear-n_.h"
+
+void
+LevelChannel::init()
+{
+	Inkscape::Extension::build_from_mem(
+		"<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+			"<name>" N_("Level (with Channel)") "</name>\n"
+			"<id>org.inkscape.effect.bitmap.levelChannel</id>\n"
+			"<param name=\"channel\" gui-text=\"" N_("Channel:") "\" type=\"optiongroup\" appearance=\"combo\" >\n"
+				"<option value='Red Channel'>" N_("Red Channel") "</option>\n"
+				"<option value='Green Channel'>" N_("Green Channel") "</option>\n"
+				"<option value='Blue Channel'>" N_("Blue Channel") "</option>\n"
+				"<option value='Cyan Channel'>" N_("Cyan Channel") "</option>\n"
+				"<option value='Magenta Channel'>" N_("Magenta Channel") "</option>\n"
+				"<option value='Yellow Channel'>" N_("Yellow Channel") "</option>\n"
+				"<option value='Black Channel'>" N_("Black Channel") "</option>\n"
+				"<option value='Opacity Channel'>" N_("Opacity Channel") "</option>\n"
+				"<option value='Matte Channel'>" N_("Matte Channel") "</option>\n"
+			"</param>\n"
+			"<param name=\"blackPoint\" gui-text=\"" N_("Black Point:") "\" type=\"float\" min=\"0.0\" max=\"100.0\">0.0</param>\n"			
+			"<param name=\"whitePoint\" gui-text=\"" N_("White Point:") "\" type=\"float\" min=\"0.0\" max=\"100.0\">100.0</param>\n"			
+			"<param name=\"midPoint\" gui-text=\"" N_("Gamma Correction:") "\" type=\"float\" min=\"0.0\" max=\"10.0\">1.0</param>\n"
+			"<effect>\n"
+				"<object-type>all</object-type>\n"
+				"<effects-menu>\n"
+					"<submenu name=\"" N_("Raster") "\" />\n"
+				"</effects-menu>\n"
+				"<menu-tip>" N_("Level the specified channel of selected bitmap(s) by scaling values falling between the given ranges to the full color range") "</menu-tip>\n"
+			"</effect>\n"
+		"</inkscape-extension>\n", new LevelChannel());
+}
+
+}; /* namespace Bitmap */
+}; /* namespace Internal */
+}; /* namespace Extension */
+}; /* namespace Inkscape */
-- 
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