1 files changed, 51 insertions, 0 deletions
diff --git a/src/helper/png-write.h b/src/helper/png-write.h
new file mode 100644
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--- /dev/null
+++ b/src/helper/png-write.h
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef SEEN_SP_PNG_WRITE_H
+#define SEEN_SP_PNG_WRITE_H
+
+/*
+ * PNG file format utilities
+ *
+ * Authors:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   Peter Bostrom
+ *   Jon A. Cruz <jon@joncruz.org>
+ *
+ * Copyright (C) 1999-2002 Lauris Kaplinski
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <glib.h> // Only for gchar.
+#include <vector>
+
+#include <2geom/forward.h>
+
+class SPDocument;
+class SPItem;
+
+enum ExportResult {
+    EXPORT_ERROR = 0,
+    EXPORT_OK,
+    EXPORT_ABORTED
+};
+
+/**
+ * Export the given document as a Portable Network Graphics (PNG) file.
+ *
+ * @return EXPORT_OK if succeeded, EXPORT_ABORTED if no action was taken, EXPORT_ERROR (false) if an error occurred.
+ */
+ExportResult sp_export_png_file(SPDocument *doc, gchar const *filename,
+				double x0, double y0, double x1, double y1,
+				unsigned long int width, unsigned long int height, double xdpi, double ydpi,
+				unsigned long bgcolor,
+				unsigned int (*status) (float, void *), void *data, bool force_overwrite = false, const std::vector<SPItem*> &items_only = std::vector<SPItem*>(), 
+                                bool interlace = false, int color_type = 6, int bit_depth = 8, int zlib = 6, int antialiasing = 2);
+
+ExportResult sp_export_png_file(SPDocument *doc, gchar const *filename,
+				Geom::Rect const &area,
+				unsigned long int width, unsigned long int height, double xdpi, double ydpi,
+				unsigned long bgcolor,
+				unsigned int (*status) (float, void *), void *data, bool force_overwrite = false, const std::vector<SPItem*> &items_only = std::vector<SPItem*>(), 
+                                bool interlace = false, int color_type = 6, int bit_depth = 8, int zlib = 6, int antialiasing = 2);
+
+#endif // SEEN_SP_PNG_WRITE_H