From: Sebastian Harl <sh@tokkee.org>
Date: Fri, 30 Dec 2011 23:31:20 +0000 (+0100)
Subject: tpdfview: Added simple presentation mode.
X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=d8a86984612f6d7c35ddc2f106ef2cd1589e4989;p=tpdfview.git

tpdfview: Added simple presentation mode.

This mode is enabled by using the '-P' command line switch. If enabled, a
second window will be created to display two "slave" GtkTPDFV widgets side by
side (using a paned widget). One will display the same content as the main
window while the other displays the next slide.
---

diff --git a/src/tpdfview.c b/src/tpdfview.c
index 9ae1b79..4d0cec8 100644
--- a/src/tpdfview.c
+++ b/src/tpdfview.c
@@ -213,6 +213,8 @@ main(int argc, char **argv)
 
 	char win_title[1024];
 
+	_Bool presentation_mode = 0;
+
 	GdkColor bg_color;
 
 	char *filename;
@@ -220,12 +222,16 @@ main(int argc, char **argv)
 	gtk_init(&argc, &argv);
 
 	while (42) {
-		int opt = getopt(argc, argv, "hV");
+		int opt = getopt(argc, argv, "PhV");
 
 		if (-1 == opt)
 			break;
 
 		switch (opt) {
+			case 'P':
+				presentation_mode = 1;
+				break;
+
 			case 'h':
 				exit_usage(argv[0], 0);
 				break;
@@ -266,13 +272,68 @@ main(int argc, char **argv)
 	if (! ctl)
 		return 1;
 
+	/* TODO: use resource file */
+	gdk_color_parse("#000000", &bg_color);
+
+	if (presentation_mode) {
+		GtkWidget *pres_win;
+		GtkWidget *paned;
+		GtkWidget *tpdfv1, *tpdfv2;
+
+		tpdfv1 = gtk_tpdfv_new(filename);
+		if (! tpdfv1)
+			return 1;
+
+		if (! tpdfv_ctl_add_slave(ctl, GTK_TPDFV(tpdfv1),
+					/* factor = */ 1, /* offset = */ 0))
+			return 1;
+
+		tpdfv2 = gtk_tpdfv_new(filename);
+		if (! tpdfv2)
+			return 1;
+
+		if (! tpdfv_ctl_add_slave(ctl, GTK_TPDFV(tpdfv2),
+					/* factor = */ 1, /* offset = */ 1))
+			return 1;
+
+		paned = gtk_hpaned_new();
+		if (! paned)
+			return 1;
+
+		gtk_paned_pack1(GTK_PANED(paned), tpdfv1, TRUE, TRUE);
+		gtk_paned_pack2(GTK_PANED(paned), tpdfv2, TRUE, TRUE);
+
+		gtk_tpdfv_zoom_fit(tpdfv1);
+		gtk_tpdfv_zoom_fit(tpdfv2);
+
+		pres_win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+		if (! pres_win)
+			return 1;
+
+		gtk_window_set_title(GTK_WINDOW(pres_win), win_title);
+
+		gtk_container_add(GTK_CONTAINER(pres_win), paned);
+
+		gtk_widget_modify_bg(tpdfv1, GTK_STATE_NORMAL, &bg_color);
+		gtk_widget_modify_bg(tpdfv2, GTK_STATE_NORMAL, &bg_color);
+
+		g_signal_connect(G_OBJECT(pres_win), "destroy",
+				G_CALLBACK(on_destroy), NULL);
+		g_signal_connect(G_OBJECT(pres_win), "key-press-event",
+				G_CALLBACK(key_press), ctl);
+
+		gtk_widget_modify_bg(pres_win, GTK_STATE_NORMAL, &bg_color);
+		gtk_widget_modify_bg(tpdfv1, GTK_STATE_NORMAL, &bg_color);
+		gtk_widget_modify_bg(tpdfv2, GTK_STATE_NORMAL, &bg_color);
+
+		gtk_widget_show_all(pres_win);
+	}
+
 	g_signal_connect(G_OBJECT(win), "destroy",
 			G_CALLBACK(on_destroy), NULL);
 	g_signal_connect(G_OBJECT(win), "key-press-event",
 			G_CALLBACK(key_press), ctl);
 
-	/* TODO: use resource file */
-	gdk_color_parse("#000000", &bg_color);
 	gtk_widget_modify_bg(tpdfv, GTK_STATE_NORMAL, &bg_color);
 
 	gtk_widget_show_all(win);