Add support for PNG images in .spv files.

[pspp] / src / output / cairo-chart.h

diff --git a/src/output/cairo-chart.h b/src/output/cairo-chart.h
index bbcc606d31ddb6216c58d3dfef61fc6662bb14e5..f02fd4efac9ef80a9007ce3429203891ae772181 100644 (file)
--- a/src/output/cairo-chart.h
+++ b/src/output/cairo-chart.h
@@ -181,6 +181,12 @@ void xrchart_draw_scatterplot (const struct chart_item *, cairo_t *,
 void xr_draw_chart (const struct chart_item *, cairo_t *,
                     double width, double height);
 
+cairo_surface_t *xr_draw_image_chart (const struct chart_item *,
+                                      const struct cell_color *fg,
+                                      const struct cell_color *bg);
+char *xr_write_png_image (cairo_surface_t *,
+                          const char *file_name_template, int number);
+
 char *xr_draw_png_chart (const struct chart_item *,
                          const char *file_name_template, int number,
                          const struct cell_color *fg,