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diff --git a/frontends/riscos/save_draw.c b/frontends/riscos/save_draw.c
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+/*
+ * Copyright 2004 John M Bell <jmb202@ecs.soton.ac.uk>
+ * Copyright 2004-2008 John Tytgat <joty@netsurf-browser.org>
+ * Copyright 2007 James Bursa <bursa@users.sourceforge.net>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * NetSurf is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file
+ * Export a content as a DrawFile (implementation).
+ */
+
+#ifdef WITH_DRAW_EXPORT
+
+#include <assert.h>
+#include <limits.h>
+#include <oslib/draw.h>
+#include <oslib/osfile.h>
+#include <pencil.h>
+
+#include "utils/log.h"
+#include "utils/utils.h"
+#include "content/content.h"
+#include "content/hlcache.h"
+#include "desktop/plotters.h"
+
+#include "riscos/bitmap.h"
+#include "riscos/gui.h"
+#include "riscos/save_draw.h"
+#include "riscos/font.h"
+
+static bool ro_save_draw_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style);
+static bool ro_save_draw_line(int x0, int y0, int x1, int y1, const plot_style_t *style);
+static bool ro_save_draw_polygon(const int *p, unsigned int n, const plot_style_t *style);
+static bool ro_save_draw_path(const float *p, unsigned int n, colour fill,
+ float width, colour c, const float transform[6]);
+static bool ro_save_draw_clip(const struct rect *clip);
+static bool ro_save_draw_text(int x, int y, const char *text, size_t length,
+ const plot_font_style_t *fstyle);
+static bool ro_save_draw_disc(int x, int y, int radius, const plot_style_t *style);
+static bool ro_save_draw_arc(int x, int y, int radius, int angle1, int angle2,
+ const plot_style_t *style);
+static bool ro_save_draw_bitmap(int x, int y, int width, int height,
+ struct bitmap *bitmap, colour bg, bitmap_flags_t flags);
+static bool ro_save_draw_group_start(const char *name);
+static bool ro_save_draw_group_end(void);
+static bool ro_save_draw_error(pencil_code code);
+
+
+static const struct plotter_table ro_save_draw_plotters = {
+ .rectangle = ro_save_draw_rectangle,
+ .line = ro_save_draw_line,
+ .polygon = ro_save_draw_polygon,
+ .clip = ro_save_draw_clip,
+ .text = ro_save_draw_text,
+ .disc = ro_save_draw_disc,
+ .arc = ro_save_draw_arc,
+ .bitmap = ro_save_draw_bitmap,
+ .group_start = ro_save_draw_group_start,
+ .group_end = ro_save_draw_group_end,
+ .path = ro_save_draw_path,
+ .option_knockout = false,
+};
+
+static struct pencil_diagram *ro_save_draw_diagram;
+static int ro_save_draw_width;
+static int ro_save_draw_height;
+
+
+/**
+ * Export a content as a DrawFile.
+ *
+ * \param h content to export
+ * \param path path to save DrawFile as
+ * \return true on success, false on error and error reported
+ */
+
+bool save_as_draw(hlcache_handle *h, const char *path)
+{
+ pencil_code code;
+ char *drawfile_buffer;
+ struct rect clip;
+ struct content_redraw_data data;
+ size_t drawfile_size;
+ os_error *error;
+ struct redraw_context ctx = {
+ .interactive = false,
+ .background_images = true,
+ .plot = &ro_save_draw_plotters
+ };
+
+ ro_save_draw_diagram = pencil_create();
+ if (!ro_save_draw_diagram) {
+ ro_warn_user("NoMemory", 0);
+ return false;
+ }
+
+ ro_save_draw_width = content_get_width(h);
+ ro_save_draw_height = content_get_height(h);
+
+ clip.x0 = clip.y0 = INT_MIN;
+ clip.x1 = clip.y1 = INT_MAX;
+
+ data.x = 0;
+ data.y = -ro_save_draw_height;
+ data.width = ro_save_draw_width;
+ data.height = ro_save_draw_height;
+ data.background_colour = 0xFFFFFF;
+ data.scale = 1;
+ data.repeat_x = false;
+ data.repeat_y = false;
+
+ if (!content_redraw(h, &data, &clip, &ctx)) {
+ pencil_free(ro_save_draw_diagram);
+ return false;
+ }
+
+ /*pencil_dump(ro_save_draw_diagram);*/
+
+ code = pencil_save_drawfile(ro_save_draw_diagram, "NetSurf",
+ &drawfile_buffer, &drawfile_size);
+ if (code != pencil_OK) {
+ ro_warn_user("SaveError", 0);
+ pencil_free(ro_save_draw_diagram);
+ return false;
+ }
+ assert(drawfile_buffer);
+
+ error = xosfile_save_stamped(path, osfile_TYPE_DRAW,
+ (byte *) drawfile_buffer,
+ (byte *) drawfile_buffer + drawfile_size);
+ if (error) {
+ LOG("xosfile_save_stamped failed: 0x%x: %s", error->errnum, error->errmess);
+ ro_warn_user("SaveError", error->errmess);
+ pencil_free(ro_save_draw_diagram);
+ return false;
+ }
+
+ pencil_free(ro_save_draw_diagram);
+
+ return true;
+}
+
+bool ro_save_draw_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style)
+{
+ pencil_code code;
+ const int path[] = { draw_MOVE_TO, x0 * 2, -y0 * 2 - 1,
+ draw_LINE_TO, x1 * 2, -y0 * 2 - 1,
+ draw_LINE_TO, x1 * 2, -y1 * 2 - 1,
+ draw_LINE_TO, x0 * 2, -y1 * 2 - 1,
+ draw_CLOSE_LINE,
+ draw_END_PATH };
+
+ if (style->fill_type != PLOT_OP_TYPE_NONE) {
+
+ code = pencil_path(ro_save_draw_diagram,
+ path,
+ sizeof path / sizeof path[0],
+ style->fill_colour << 8,
+ pencil_TRANSPARENT,
+ 0,
+ pencil_JOIN_MITRED,
+ pencil_CAP_BUTT,
+ pencil_CAP_BUTT,
+ 0,
+ 0,
+ false,
+ pencil_SOLID);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+ }
+
+ if (style->stroke_type != PLOT_OP_TYPE_NONE) {
+
+ code = pencil_path(ro_save_draw_diagram,
+ path,
+ sizeof path / sizeof path[0],
+ pencil_TRANSPARENT,
+ style->stroke_colour << 8,
+ style->stroke_width,
+ pencil_JOIN_MITRED,
+ pencil_CAP_BUTT,
+ pencil_CAP_BUTT,
+ 0,
+ 0,
+ false,
+ pencil_SOLID);
+
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+ }
+ return true;
+}
+
+
+bool ro_save_draw_line(int x0, int y0, int x1, int y1, const plot_style_t *style)
+{
+ pencil_code code;
+ const int path[] = { draw_MOVE_TO, x0 * 2, -y0 * 2 - 1,
+ draw_LINE_TO, x1 * 2, -y1 * 2 - 1,
+ draw_END_PATH };
+
+ code = pencil_path(ro_save_draw_diagram,
+ path,
+ sizeof path / sizeof path[0],
+ pencil_TRANSPARENT,
+ style->stroke_colour << 8,
+ style->stroke_width,
+ pencil_JOIN_MITRED,
+ pencil_CAP_BUTT,
+ pencil_CAP_BUTT,
+ 0, 0, false,
+ pencil_SOLID);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+
+ return true;
+}
+
+
+bool ro_save_draw_polygon(const int *p, unsigned int n, const plot_style_t *style)
+{
+ pencil_code code;
+ int path[n * 3 + 1];
+ unsigned int i;
+
+ for (i = 0; i != n; i++) {
+ path[i * 3 + 0] = draw_LINE_TO;
+ path[i * 3 + 1] = p[i * 2 + 0] * 2;
+ path[i * 3 + 2] = -p[i * 2 + 1] * 2;
+ }
+ path[0] = draw_MOVE_TO;
+ path[n * 3] = draw_END_PATH;
+
+ code = pencil_path(ro_save_draw_diagram,
+ path, n * 3 + 1,
+ style->fill_colour << 8,
+ pencil_TRANSPARENT,
+ 0,
+ pencil_JOIN_MITRED,
+ pencil_CAP_BUTT,
+ pencil_CAP_BUTT,
+ 0,
+ 0,
+ false,
+ pencil_SOLID);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+
+ return true;
+}
+
+
+bool ro_save_draw_path(const float *p, unsigned int n, colour fill,
+ float width, colour c, const float transform[6])
+{
+ if (n == 0)
+ return true;
+
+ if (p[0] != PLOTTER_PATH_MOVE) {
+ LOG("path doesn't start with a move");
+ return false;
+ }
+
+ int *path = malloc(sizeof *path * (n + 10));
+ if (!path) {
+ LOG("out of memory");
+ return false;
+ }
+
+ unsigned int i;
+ bool empty_path = true;
+ for (i = 0; i < n; ) {
+ if (p[i] == PLOTTER_PATH_MOVE) {
+ path[i] = draw_MOVE_TO;
+ path[i + 1] = (transform[0] * p[i + 1] +
+ transform[2] * -p[i + 2] +
+ transform[4]) * 2;
+ path[i + 2] = (transform[1] * p[i + 1] +
+ transform[3] * -p[i + 2] +
+ -transform[5]) * 2;
+ i += 3;
+ } else if (p[i] == PLOTTER_PATH_CLOSE) {
+ path[i] = draw_CLOSE_LINE;
+ i++;
+ } else if (p[i] == PLOTTER_PATH_LINE) {
+ path[i] = draw_LINE_TO;
+ path[i + 1] = (transform[0] * p[i + 1] +
+ transform[2] * -p[i + 2] +
+ transform[4]) * 2;
+ path[i + 2] = (transform[1] * p[i + 1] +
+ transform[3] * -p[i + 2] +
+ -transform[5]) * 2;
+ i += 3;
+ empty_path = false;
+ } else if (p[i] == PLOTTER_PATH_BEZIER) {
+ path[i] = draw_BEZIER_TO;
+ path[i + 1] = (transform[0] * p[i + 1] +
+ transform[2] * -p[i + 2] +
+ transform[4]) * 2;
+ path[i + 2] = (transform[1] * p[i + 1] +
+ transform[3] * -p[i + 2] +
+ -transform[5]) * 2;
+ path[i + 3] = (transform[0] * p[i + 3] +
+ transform[2] * -p[i + 4] +
+ transform[4]) * 2;
+ path[i + 4] = (transform[1] * p[i + 3] +
+ transform[3] * -p[i + 4] +
+ -transform[5]) * 2;
+ path[i + 5] = (transform[0] * p[i + 5] +
+ transform[2] * -p[i + 6] +
+ transform[4]) * 2;
+ path[i + 6] = (transform[1] * p[i + 5] +
+ transform[3] * -p[i + 6] +
+ -transform[5]) * 2;
+ i += 7;
+ empty_path = false;
+ } else {
+ LOG("bad path command %f", p[i]);
+ free(path);
+ return false;
+ }
+ }
+ path[i] = draw_END_PATH;
+
+ if (empty_path) {
+ free(path);
+ return true;
+ }
+
+ pencil_code code = pencil_path(ro_save_draw_diagram, path, i + 1,
+ fill == NS_TRANSPARENT ? pencil_TRANSPARENT : fill << 8,
+ c == NS_TRANSPARENT ? pencil_TRANSPARENT : c << 8,
+ width, pencil_JOIN_MITRED,
+ pencil_CAP_BUTT, pencil_CAP_BUTT, 0, 0, false,
+ pencil_SOLID);
+ free(path);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+
+ return true;
+}
+
+
+
+
+bool ro_save_draw_clip(const struct rect *clip)
+{
+ return true;
+}
+
+
+bool ro_save_draw_text(int x, int y, const char *text, size_t length,
+ const plot_font_style_t *fstyle)
+{
+ pencil_code code;
+ const char *font_family;
+ unsigned int font_size;
+ rufl_style font_style;
+
+ nsfont_read_style(fstyle, &font_family, &font_size, &font_style);
+
+ code = pencil_text(ro_save_draw_diagram, x * 2, -y * 2, font_family,
+ font_style, font_size, text, length,
+ fstyle->foreground << 8);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+
+ return true;
+}
+
+
+bool ro_save_draw_disc(int x, int y, int radius, const plot_style_t *style)
+{
+ return true;
+}
+
+bool ro_save_draw_arc(int x, int y, int radius, int angle1, int angle2,
+ const plot_style_t *style)
+{
+ return true;
+}
+
+bool ro_save_draw_bitmap(int x, int y, int width, int height,
+ struct bitmap *bitmap, colour bg, bitmap_flags_t flags)
+{
+ pencil_code code;
+ const uint8_t *buffer;
+
+ buffer = riscos_bitmap_get_buffer(bitmap);
+ if (!buffer) {
+ ro_warn_user("NoMemory", 0);
+ return false;
+ }
+
+ code = pencil_sprite(ro_save_draw_diagram, x * 2, (-y - height) * 2,
+ width * 2, height * 2,
+ ((char *) bitmap->sprite_area) +
+ bitmap->sprite_area->first);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+
+ return true;
+}
+
+
+bool ro_save_draw_group_start(const char *name)
+{
+ pencil_code code;
+
+ code = pencil_group_start(ro_save_draw_diagram, name);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+
+ return true;
+}
+
+
+bool ro_save_draw_group_end(void)
+{
+ pencil_code code;
+
+ code = pencil_group_end(ro_save_draw_diagram);
+ if (code != pencil_OK)
+ return ro_save_draw_error(code);
+
+ return true;
+}
+
+
+/**
+ * Report an error from pencil.
+ *
+ * \param code error code
+ * \return false
+ */
+
+bool ro_save_draw_error(pencil_code code)
+{
+ LOG("code %i", code);
+
+ switch (code) {
+ case pencil_OK:
+ assert(0);
+ break;
+ case pencil_OUT_OF_MEMORY:
+ ro_warn_user("NoMemory", 0);
+ break;
+ case pencil_FONT_MANAGER_ERROR:
+ ro_warn_user("SaveError", rufl_fm_error->errmess);
+ break;
+ case pencil_FONT_NOT_FOUND:
+ case pencil_IO_ERROR:
+ case pencil_IO_EOF:
+ ro_warn_user("SaveError", "generating the DrawFile failed");
+ break;
+ }
+
+ return false;
+}
+
+#endif