[pango/pango2: 89/301] pango-view: Bring line spacing back

[Matthias Clasen <matthiasc src gnome org>]

commit 8974d49c2ad854554dcfcbea6b566f306f03d74a
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jan 24 07:49:18 2022 -0500

    pango-view: Bring line spacing back

 utils/viewer-render.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/utils/viewer-render.c b/utils/viewer-render.c
index c162f28a8..86fb0bc5e 100644
--- a/utils/viewer-render.c
+++ b/utils/viewer-render.c
@@ -52,6 +52,7 @@ gboolean opt_waterfall = FALSE;
 int opt_width = -1;
 int opt_height = -1;
 int opt_indent = 0;
+int opt_spacing = 0;
 double opt_line_spacing = -1.0;
 int opt_runs = 1;
 PangoAlignment opt_align = PANGO_ALIGN_LEFT;
@@ -161,6 +162,15 @@ make_layout(PangoContext *context,
         pango_layout_set_indent (layout, (opt_indent * opt_dpi * PANGO_SCALE + 36) / 72);
     }
 
+  if (opt_spacing != 0)
+    {
+      if (opt_pango_units)
+        pango_layout_set_spacing (layout, opt_spacing);
+      else
+        pango_layout_set_spacing (layout, (opt_spacing * opt_dpi * PANGO_SCALE + 36) / 72);
+      pango_layout_set_line_height (layout, 0.0);
+    }
+
   if (opt_line_spacing >= 0.0)
     pango_layout_set_line_height (layout, (float)opt_line_spacing);
 
@@ -894,6 +904,8 @@ parse_options (int argc, char *argv[])
      "Subpixel order",                                      "rgb/bgr/vrgb/vbgr"},
     {"indent",         0, 0, G_OPTION_ARG_INT,                         &opt_indent,
      "Width in points to indent paragraphs",                       "points"},
+    {"spacing",                0, 0, G_OPTION_ARG_INT,                         &opt_spacing,
+     "Spacing in points between lines",                                    "points"},
     {"line-spacing",   0, 0, G_OPTION_ARG_DOUBLE,                      &opt_line_spacing,
      "Spread factor for line height",                              "factor"},
     {"language",       0, 0, G_OPTION_ARG_STRING,                      &opt_language,