xps: import ghostxps source

1 files changed, 62 insertions, 0 deletions

diff --git a/xps/xpsvisual.c b/xps/xpsvisual.c
new file mode 100644
index 00000000..f23ef991
--- /dev/null
+++ b/xps/xpsvisual.c
@@ -0,0 +1,62 @@
+/* Copyright (C) 2006-2010 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - visual brush functions */
+
+#include "ghostxps.h"
+
+enum { TILE_NONE, TILE_TILE, TILE_FLIP_X, TILE_FLIP_Y, TILE_FLIP_X_Y };
+
+struct userdata
+{
+	xps_context_t *ctx;
+	xps_resource_t *dict;
+	xps_item_t *visual_tag;
+};
+
+static int
+xps_paint_visual_brush(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *root, void *visual_tag)
+{
+	return xps_parse_element(ctx, base_uri, dict, (xps_item_t *)visual_tag);
+}
+
+int
+xps_parse_visual_brush(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *root)
+{
+	xps_item_t *node;
+	int code;
+
+	char *visual_uri;
+	char *visual_att;
+	xps_item_t *visual_tag = NULL;
+
+	visual_att = xps_att(root, "Visual");
+
+	for (node = xps_down(root); node; node = xps_next(node))
+	{
+		if (!strcmp(xps_tag(node), "VisualBrush.Visual"))
+			visual_tag = xps_down(node);
+	}
+
+	visual_uri = base_uri;
+	xps_resolve_resource_reference(ctx, dict, &visual_att, &visual_tag, &visual_uri);
+
+	if (visual_tag)
+	{
+		code = xps_parse_tiling_brush(ctx, visual_uri, dict, root, xps_paint_visual_brush, visual_tag);
+		if (code)
+			return gs_rethrow(code, "cannot parse tiling brush");
+	}
+
+	return 0;
+}