From e5c7702870a1bddac6b46ae82c90864f94172ca9 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Sat, 25 Jan 2020 19:45:04 +0100
Subject: Implement loading stylesheets

---
 libstorycode/stylesheet.c | 17 ++++++++++
 libstorycode/stylesheet.h |  3 ++
 src/narrative_window.c    | 79 +++++++++++++++++++++--------------------------
 3 files changed, 56 insertions(+), 43 deletions(-)

diff --git a/libstorycode/stylesheet.c b/libstorycode/stylesheet.c
index bc22852..16cf218 100644
--- a/libstorycode/stylesheet.c
+++ b/libstorycode/stylesheet.c
@@ -593,6 +593,23 @@ int stylesheet_set_from_storycode(Stylesheet *ss, const char *sc)
 }
 
 
+int stylesheet_set_from_file(Stylesheet *ss, GFile *file)
+{
+	GBytes *bytes;
+	const char *text;
+	size_t len;
+	int r = 0;
+
+	bytes = g_file_load_bytes(file, NULL, NULL, NULL);
+	if ( bytes == NULL ) return 0;
+
+	text = g_bytes_get_data(bytes, &len);
+	r = stylesheet_set_from_storycode(ss, text);
+	g_bytes_unref(bytes);
+	return r;
+}
+
+
 double lcalc(struct length l, double pd)
 {
 	if ( l.unit == LENGTH_UNIT ) {
diff --git a/libstorycode/stylesheet.h b/libstorycode/stylesheet.h
index 82f90e8..4a8e58c 100644
--- a/libstorycode/stylesheet.h
+++ b/libstorycode/stylesheet.h
@@ -27,6 +27,8 @@
 #include <config.h>
 #endif
 
+#include <gio/gio.h>
+
 typedef struct _stylesheet Stylesheet;
 
 enum alignment
@@ -80,6 +82,7 @@ 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_set_from_file(Stylesheet *ss, GFile *file);
 
 extern int stylesheet_get_slide_default_size(Stylesheet *s, double *w, double *h);
 
diff --git a/src/narrative_window.c b/src/narrative_window.c
index 9ccdafa..073a05e 100644
--- a/src/narrative_window.c
+++ b/src/narrative_window.c
@@ -29,6 +29,7 @@
 #include <assert.h>
 #include <string.h>
 #include <stdlib.h>
+#include <gio/gio.h>
 
 #include <libintl.h>
 #define _(x) gettext(x)
@@ -237,32 +238,26 @@ static void save_sig(GSimpleAction *action, GVariant *parameter, gpointer vp)
 static gint load_ss_response_sig(GtkWidget *d, gint response,
                                  NarrativeWindow *nw)
 {
-//	if ( response == GTK_RESPONSE_ACCEPT ) {
-//
-//		GFile *file;
-//		Stylesheet *new_ss;
-//
-//		file = gtk_file_chooser_get_file(GTK_FILE_CHOOSER(d));
-//
-//		new_ss = stylesheet_load(file);
-//		if ( new_ss != NULL ) {
-//
-//			stylesheet_free(nw->p->stylesheet);
-//			nw->n->stylesheet = new_ss;
-//			sc_editor_set_stylesheet(nw->nv, new_ss);
-//
-//			/* Full rerender */
-//			sc_editor_set_scblock(nw->nv, nw->dummy_top);
-//
-//		} else {
-//			fprintf(stderr, _("Failed to load stylesheet\n"));
-//		}
-//
-//		g_object_unref(file);
-//
-//	}
-//
-//	gtk_widget_destroy(d);
+	if ( response == GTK_RESPONSE_ACCEPT ) {
+
+		GFile *file;
+
+		file = gtk_file_chooser_get_file(GTK_FILE_CHOOSER(d));
+
+		if ( stylesheet_set_from_file(narrative_get_stylesheet(nw->n), file) ) {
+
+			fprintf(stderr, _("Failed to load stylesheet\n"));
+
+		} else {
+
+			gtk_narrative_view_redraw(GTK_NARRATIVE_VIEW(nw->nv));
+		}
+
+		g_object_unref(file);
+
+	}
+
+	gtk_widget_destroy(d);
 
 	return 0;
 }
@@ -298,22 +293,20 @@ static void edit_ss_sig(GSimpleAction *action, GVariant *parameter,
 static void load_ss_sig(GSimpleAction *action, GVariant *parameter,
                         gpointer vp)
 {
-//	//SCBlock *nsblock;
-//	//SCBlock *templ;
-//	NarrativeWindow *nw = vp;
-//	GtkWidget *d;
-//
-//	d = gtk_file_chooser_dialog_new(_("Load stylesheet"),
-//	                                GTK_WINDOW(nw->window),
-//	                                GTK_FILE_CHOOSER_ACTION_OPEN,
-//	                                _("_Cancel"), GTK_RESPONSE_CANCEL,
-//	                                _("_Open"), GTK_RESPONSE_ACCEPT,
-//	                                NULL);
-//
-//	g_signal_connect(G_OBJECT(d), "response",
-//	                 G_CALLBACK(load_ss_response_sig), nw);
-//
-//	gtk_widget_show_all(d);
+	NarrativeWindow *nw = vp;
+	GtkWidget *d;
+
+	d = gtk_file_chooser_dialog_new(_("Load stylesheet"),
+	                                GTK_WINDOW(nw->window),
+	                                GTK_FILE_CHOOSER_ACTION_OPEN,
+	                                _("_Cancel"), GTK_RESPONSE_CANCEL,
+	                                _("_Open"), GTK_RESPONSE_ACCEPT,
+	                                NULL);
+
+	g_signal_connect(G_OBJECT(d), "response",
+	                 G_CALLBACK(load_ss_response_sig), nw);
+
+	gtk_widget_show_all(d);
 }
 
 
@@ -724,7 +717,7 @@ GActionEntry nw_entries[] = {
 	{ "prestitle", add_prestitle_sig, NULL, NULL, NULL },
 	{ "segstart", add_segstart_sig, NULL, NULL, NULL },
 	{ "segend", add_segend_sig, NULL, NULL, NULL },
-	{ "loadstylesheet", load_ss_sig, NULL, NULL, NULL },
+	{ "loadstyle", load_ss_sig, NULL, NULL, NULL },
 	{ "stylesheet", edit_ss_sig, NULL, NULL, NULL },
 	{ "startslideshow", start_slideshow_sig, NULL, NULL, NULL },
 	{ "startslideshowhere", start_slideshow_here_sig, NULL, NULL, NULL },
-- 
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