Implement "revert" button for stylesheet editor

3 files changed, 25 insertions, 1 deletions

diff --git a/libstorycode/stylesheet.c b/libstorycode/stylesheet.c
index 3bbddb3..be4db9b 100644
--- a/libstorycode/stylesheet.c
+++ b/libstorycode/stylesheet.c
@@ -568,3 +568,23 @@ const char *stylesheet_get_friendly_name(const char *in)
 	if ( strcmp(in, "FOOTER") == 0 ) return "Footer";
 	return in;
 }
+
+
+int stylesheet_set_from_storycode(Stylesheet *ss, const char *sc)
+{
+	Stylesheet *ssnew;
+	Narrative *n;
+
+	n = storycode_parse_presentation(sc);
+	if ( n == NULL ) return 1;
+
+	ssnew = narrative_get_stylesheet(n);
+	if ( ssnew == NULL ) return 1;
+
+	narrative_free(n);
+
+	free_style_contents(&ss->top);
+	ss->top = ssnew->top;
+
+	return 0;
+}
diff --git a/libstorycode/stylesheet.h b/libstorycode/stylesheet.h
index 0a38477..0b994da 100644
--- a/libstorycode/stylesheet.h
+++ b/libstorycode/stylesheet.h
@@ -79,6 +79,7 @@ enum gradient
 
 extern Stylesheet *stylesheet_new(void);
 extern void stylesheet_free(Stylesheet *s);
+extern int stylesheet_set_from_storycode(Stylesheet *ss, const char *sc);
 
 extern int stylesheet_get_slide_default_size(Stylesheet *s, double *w, double *h);
 
diff --git a/src/stylesheet_editor.c b/src/stylesheet_editor.c
index c70b678..1cff58a 100644
--- a/src/stylesheet_editor.c
+++ b/src/stylesheet_editor.c
@@ -38,6 +38,7 @@
 struct _sspriv
 {
 	Stylesheet *stylesheet;
+	char *orig_ss;
 	char *style_name;
 };
 
@@ -379,7 +380,7 @@ static void element_changed(GtkTreeSelection *sel, StylesheetEditor *se)
 
 static void revert_sig(GtkButton *button, StylesheetEditor *se)
 {
-	/* FIXME: implement */
+	stylesheet_set_from_storycode(se->priv->stylesheet, se->priv->orig_ss);
 	set_values_from_presentation(se);
 	g_signal_emit_by_name(se, "changed");
 }
@@ -545,6 +546,7 @@ static void bg_sig(GtkColorButton *widget, StylesheetEditor *se)
 
 static void stylesheet_editor_finalize(GObject *obj)
 {
+	free(COLLOQUIUM_STYLESHEET_EDITOR(obj)->priv->orig_ss);
 	G_OBJECT_CLASS(stylesheet_editor_parent_class)->finalize(obj);
 }
 
@@ -614,6 +616,7 @@ StylesheetEditor *stylesheet_editor_new(Stylesheet *ss)
 
 	se->priv->stylesheet = ss;
 	se->priv->style_name = NULL;
+	se->priv->orig_ss = stylesheet_serialise(ss);
 
 	renderer = gtk_cell_renderer_text_new();
 	column = gtk_tree_view_column_new_with_attributes("Element", renderer,