1 files changed, 106 insertions, 0 deletions
diff --git a/src/extension/internal/png-output.cpp b/src/extension/internal/png-output.cpp
new file mode 100644
index 0000000..68841ef
--- /dev/null
+++ b/src/extension/internal/png-output.cpp
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * An internal raster export which passes the generated PNG output
+ * to an external file. In the future this module could host more of
+ * the PNG generation code that isn't needed for other raster export options.
+ *
+ * Authors:
+ *   Martin Owens <doctormo@geek-2.com>
+ *
+ * Copyright (C) 2021 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "png-output.h"
+
+#include <cstdlib>
+#include <iostream>
+#include <string>
+#include <glibmm.h>
+#include <giomm.h>
+
+#include "clear-n_.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+void PngOutput::export_raster(Inkscape::Extension::Output * /*module*/,
+        const SPDocument * /*doc*/, std::string const &png_file, gchar const *filename)
+{
+    // We want to move the png file to the new location
+    Glib::RefPtr<Gio::File> input_fn = Gio::File::create_for_path(png_file);
+    Glib::RefPtr<Gio::File> output_fn = Gio::File::create_for_path(filename);
+    try {
+        // This file must be copied because the permissions must be created
+        // based on it's target location and not the temp directory.
+        input_fn->copy(output_fn, Gio::FILE_COPY_OVERWRITE | Gio::FILE_COPY_TARGET_DEFAULT_PERMS);
+    }
+    catch (const Gio::Error& e) {
+        std::cerr << "Moving resource " << png_file
+                  << " to "             << filename
+                  << " failed: "        << e.what().raw() << std::endl;
+    }
+}
+
+void PngOutput::init()
+{
+    // clang-format off
+    Inkscape::Extension::build_from_mem(
+        "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+            "<name>" N_("Portable Network Graphic") "</name>\n"
+            "<id>" SP_MODULE_KEY_RASTER_PNG "</id>\n"
+            "<param name='png_interlacing' type='bool' gui-text='" N_("Interlacing") "'>false</param>"
+            "<param name='png_bitdepth' type='optiongroup' appearance='combo' gui-text='" N_("Bit Depth") "'>"
+               "<option value='99'>" N_("RGBA 8") "</option>" // First because it's the default option
+               "<option value='100'>" N_("RGBA 16") "</option>"
+               "<option value='67'>" N_("GrayAlpha 8") "</option>"
+               "<option value='68'>" N_("GrayAlpha 16") "</option>"
+               "<option value='35'>" N_("RGB 8") "</option>"
+               "<option value='36'>" N_("RGB 16") "</option>"
+               "<option value='0'>" N_("Gray 1") "</option>"
+               "<option value='1'>" N_("Gray 2") "</option>"
+               "<option value='2'>" N_("Gray 4") "</option>"
+               "<option value='3'>" N_("Gray 8") "</option>"
+               "<option value='4'>" N_("Gray 16") "</option>"
+            "</param>"
+            "<param name='png_compression' type='optiongroup' appearance='combo' gui-text='" N_("Compression") "'>"
+               "<option value='0'>" N_("0 - No Compression") "</option>"
+               "<option value='1'>" N_("1 - Best Speed") "</option>"
+               "<option value='2'>2</option>"
+               "<option value='3'>3</option>"
+               "<option value='4'>4</option>"
+               "<option value='5'>5</option>"
+               "<option value='6'>" N_("6 - Default Compression") "</option>" // First because it's default (and broken)
+               "<option value='7'>7</option>"
+               "<option value='8'>8</option>"
+               "<option value='9'>" N_("9 - Best Compression") "</option>"
+            "</param>"
+            "<param name='png_phys' gui-text='" N_("pHYs DPI") "' type='float' min='0.0' max='100000.0'>0.0</param>"
+            "<param name='png_antialias' gui-text='" N_("Antialias") "' type='int' min='0' max='3'>2</param>"
+            "<output raster=\"true\">\n"
+                "<extension>.png</extension>\n"
+                "<mimetype>image/png</mimetype>\n"
+                "<filetypename>" N_("Portable Network Graphic (*.png)") "</filetypename>\n"
+                "<filetypetooltip>" N_("Default raster graphic export") "</filetypetooltip>\n"
+            "</output>\n"
+        "</inkscape-extension>",
+        new PngOutput());
+    // clang-format on
+}
+
+} // namespace Internal
+} // namespace Extension
+} // namespace Inkscape
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :