1 files changed, 115 insertions, 0 deletions
diff --git a/xps/xpscommon.c b/xps/xpscommon.c
new file mode 100644
index 00000000..6908b3c5
--- /dev/null
+++ b/xps/xpscommon.c
@@ -0,0 +1,115 @@
+/* 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 - common parse functions */
+
+#include "ghostxps.h"
+
+int
+xps_parse_brush(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *node)
+{
+	if (!strcmp(xps_tag(node), "SolidColorBrush"))
+		return xps_parse_solid_color_brush(ctx, base_uri, dict, node);
+	if (!strcmp(xps_tag(node), "ImageBrush"))
+	{
+		int code = xps_parse_image_brush(ctx, base_uri, dict, node);
+		if (code)
+			gs_catch(code, "ignoring error in image brush");
+		return gs_okay;
+	}
+	if (!strcmp(xps_tag(node), "VisualBrush"))
+		return xps_parse_visual_brush(ctx, base_uri, dict, node);
+	if (!strcmp(xps_tag(node), "LinearGradientBrush"))
+		return xps_parse_linear_gradient_brush(ctx, base_uri, dict, node);
+	if (!strcmp(xps_tag(node), "RadialGradientBrush"))
+		return xps_parse_radial_gradient_brush(ctx, base_uri, dict, node);
+	return gs_throw1(-1, "unknown brush tag: %s", xps_tag(node));
+}
+
+int
+xps_parse_element(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *node)
+{
+	if (!strcmp(xps_tag(node), "Path"))
+		return xps_parse_path(ctx, base_uri, dict, node);
+	if (!strcmp(xps_tag(node), "Glyphs"))
+		return xps_parse_glyphs(ctx, base_uri, dict, node);
+	if (!strcmp(xps_tag(node), "Canvas"))
+		return xps_parse_canvas(ctx, base_uri, dict, node);
+	/* skip unknown tags (like Foo.Resources and similar) */
+	return 0;
+}
+
+void
+xps_parse_render_transform(xps_context_t *ctx, char *transform, gs_matrix *matrix)
+{
+	float args[6];
+	char *s = transform;
+	int i;
+
+	args[0] = 1.0; args[1] = 0.0;
+	args[2] = 0.0; args[3] = 1.0;
+	args[4] = 0.0; args[5] = 0.0;
+
+	for (i = 0; i < 6 && *s; i++)
+	{
+		args[i] = atof(s);
+		while (*s && *s != ',')
+			s++;
+		if (*s == ',')
+			s++;
+	}
+
+	matrix->xx = args[0]; matrix->xy = args[1];
+	matrix->yx = args[2]; matrix->yy = args[3];
+	matrix->tx = args[4]; matrix->ty = args[5];
+}
+
+void
+xps_parse_matrix_transform(xps_context_t *ctx, xps_item_t *root, gs_matrix *matrix)
+{
+	char *transform;
+
+	gs_make_identity(matrix);
+
+	if (!strcmp(xps_tag(root), "MatrixTransform"))
+	{
+		transform = xps_att(root, "Matrix");
+		if (transform)
+			xps_parse_render_transform(ctx, transform, matrix);
+	}
+}
+
+void
+xps_parse_rectangle(xps_context_t *ctx, char *text, gs_rect *rect)
+{
+	float args[4];
+	char *s = text;
+	int i;
+
+	args[0] = 0.0; args[1] = 0.0;
+	args[2] = 1.0; args[3] = 1.0;
+
+	for (i = 0; i < 4 && *s; i++)
+	{
+		args[i] = atof(s);
+		while (*s && *s != ',')
+			s++;
+		if (*s == ',')
+			s++;
+	}
+
+	rect->p.x = args[0];
+	rect->p.y = args[1];
+	rect->q.x = args[0] + args[2];
+	rect->q.y = args[1] + args[3];
+}