From ba77d15bc3b743dd506a943189c13c4e95f33760 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Fri, 27 Mar 2020 17:24:12 +0100
Subject: Add info bar / progress bar

---
 src/crystfel_gui.c      | 31 +++++++++++++++++++++++++++++++
 src/crystfel_gui.h      |  3 +++
 src/gui_backend_local.c |  4 ++++
 src/gui_index.c         |  9 +++++++--
 4 files changed, 45 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/crystfel_gui.c b/src/crystfel_gui.c
index 2990c488..c086b0cf 100644
--- a/src/crystfel_gui.c
+++ b/src/crystfel_gui.c
@@ -541,6 +541,19 @@ static void add_gui_message(enum log_msg_type type, const char *msg,
 }
 
 
+static void infobar_response_sig(GtkInfoBar *infobar, gint resp,
+                                 gpointer data)
+{
+	struct crystfelproject *proj = data;
+
+	if ( resp == GTK_RESPONSE_CANCEL ) {
+		proj->backend->cancel(proj);
+	}
+
+	gtk_info_bar_set_revealed(GTK_INFO_BAR(proj->info_bar), FALSE);
+}
+
+
 int main(int argc, char *argv[])
 {
 	int c;
@@ -553,6 +566,7 @@ int main(int argc, char *argv[])
 	GtkWidget *main_vbox;
 	GtkWidget *toolbar;
 	GtkWidget *button;
+	GtkWidget *bar_area;
 
 	/* Long options */
 	const struct option longopts[] = {
@@ -682,6 +696,23 @@ int main(int argc, char *argv[])
 	gtk_container_add(GTK_CONTAINER(frame), GTK_WIDGET(main_vbox));
 	gtk_paned_pack2(GTK_PANED(hpaned), GTK_WIDGET(frame), TRUE, TRUE);
 
+	/* Progress info bar */
+	proj.info_bar = gtk_info_bar_new_with_buttons(GTK_STOCK_CANCEL,
+	                                              GTK_RESPONSE_CANCEL,
+	                                              NULL);
+	gtk_box_pack_end(GTK_BOX(main_vbox), GTK_WIDGET(proj.info_bar),
+	                 FALSE, FALSE, 0.0);
+	bar_area = gtk_info_bar_get_content_area(GTK_INFO_BAR(proj.info_bar));
+	proj.progressbar = gtk_progress_bar_new();
+	gtk_box_pack_start(GTK_BOX(bar_area),
+	                   GTK_WIDGET(proj.progressbar),
+	                   TRUE, TRUE, 0.0);
+	gtk_progress_bar_set_show_text(GTK_PROGRESS_BAR(proj.progressbar),
+	                               TRUE);
+	gtk_info_bar_set_revealed(GTK_INFO_BAR(proj.info_bar), FALSE);
+	g_signal_connect(G_OBJECT(proj.info_bar), "response",
+	                 G_CALLBACK(infobar_response_sig), &proj);
+
 	/* Icon region at left */
 	proj.icons = gtk_vbox_new(FALSE, 0.0);
 	scroll = gtk_scrolled_window_new(NULL, NULL);
diff --git a/src/crystfel_gui.h b/src/crystfel_gui.h
index 5ca37f8e..e303c505 100644
--- a/src/crystfel_gui.h
+++ b/src/crystfel_gui.h
@@ -95,6 +95,9 @@ struct crystfelproject {
 
 	GtkWidget *unitcell_combo;
 
+	GtkWidget *info_bar;
+	GtkWidget *progressbar;
+
 	struct crystfel_backend *backend;
 };
 
diff --git a/src/gui_backend_local.c b/src/gui_backend_local.c
index 7ef059ab..80057a03 100644
--- a/src/gui_backend_local.c
+++ b/src/gui_backend_local.c
@@ -39,6 +39,7 @@ static gboolean index_readable(GIOChannel *source, GIOCondition cond,
 	GError *err = NULL;
 	struct crystfelproject *proj = vp;
 	gchar *line;
+	double frac = 0.1;
 
 	r = g_io_channel_read_line(source, &line, NULL, NULL, &err);
 	if ( r == G_IO_STATUS_EOF ) {
@@ -52,6 +53,9 @@ static gboolean index_readable(GIOChannel *source, GIOCondition cond,
 	chomp(line);
 	STATUS("Got line '%s'\n", line);
 
+	gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(proj->progressbar),
+	                              frac);
+
 	g_free(line);
 
 	return TRUE;
diff --git a/src/gui_index.c b/src/gui_index.c
index a09b4c27..46728716 100644
--- a/src/gui_index.c
+++ b/src/gui_index.c
@@ -58,8 +58,13 @@ static void unitcell_response_sig(GtkWidget *dialog, gint resp,
 		return;
 	}
 
-	proj->backend->run_unitcell(proj, algo);
-	proj->unitcell_combo = NULL;
+	if ( proj->backend->run_unitcell(proj, algo) == 0 ) {
+		proj->unitcell_combo = NULL;
+
+		gtk_progress_bar_set_text(GTK_PROGRESS_BAR(proj->progressbar),
+		                          "Indexing (determine unit cell parameters)");
+		gtk_info_bar_set_revealed(GTK_INFO_BAR(proj->info_bar), TRUE);
+	}
 }
 
 
-- 
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