jpeg-utils: Add support for custom resize options

This change brings the possibility to tweak resize options using standard
ImageMagick `convert` command syntax. Separate options are offered for
thumbnails.

1 files changed, 34 insertions, 0 deletions

diff --git a/src/gallery-utils.c b/src/gallery-utils.c
index d97cef3..403b3c6 100644
--- a/src/gallery-utils.c
+++ b/src/gallery-utils.c
@@ -94,6 +94,40 @@ str_replace (gchar **dst, const gchar *search, const gchar *replace)
 
 
 /*
+ *   str_trim_inside: trims any leading, trailing and repeated whitespaces in the whole string
+ */
+#define IS_WHITESPACE(s) (s == ' ' || s == '\t')
+
+void
+str_trim_inside (gchar **s)
+{
+  gchar *dst;
+  gboolean was_whitespace;
+  int pos;
+  gchar *src;
+
+  if (! s || strlen (*s) == 0 )
+    return;
+
+  /*  suppose the new string is not longer than the input string  */
+  dst = g_malloc0 (strlen (*s) + 1);
+  was_whitespace = TRUE;   /*  handles beginning of the string  */
+  pos = 0;
+  for (src = *s; *src != '\0'; src++)
+    if (! IS_WHITESPACE (*src) || ! was_whitespace) {
+      dst[pos++] = *src;
+      was_whitespace = IS_WHITESPACE (*src);
+    }
+  if (IS_WHITESPACE (dst[pos - 1]))
+    dst[pos - 1] = '\0';
+
+  /*  return fixed string  */
+  g_free (*s);
+  *s = dst;
+}
+
+
+/*
  *   copy_file: copy file from src to dst
  */
 gboolean