From 9d6c0a1c08f4b379519483078bf78015529c7abc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Voltz?= <stef.dev@free.fr>
Date: Tue, 23 Sep 2008 19:37:56 +0000
Subject: [PATCH] 	- added printing of estimated scan time remaining in
 progress 	  popup, based on a patch by 	  Jonas Berlin
 <xkr47@outerspace.dyndns.org>

---
 Changelog      |  5 +++
 src/progress.c | 82 +++++++++++++++++++++++++++++++++++++++++++++-----
 src/progress.h |  6 ++++
 3 files changed, 86 insertions(+), 7 deletions(-)

diff --git a/Changelog b/Changelog
index 9c89674..cbe6b31 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,8 @@
+2008-09-23 Stéphane Voltz <stef.dev@free.fr>
+	* src/progress.c src/progress.h: add an estimated time remaining
+	  on the progress window, based on a patch by Jonas Berlin 
+	  <xkr47@outerspace.dyndns.org>
+
 2008-08-05 Julien Blache <jb@jblache.org>
 	* src/scanadf.c: fetch_options(): get option descriptor for option 0
 	  before getting the value for option 0.
diff --git a/src/progress.c b/src/progress.c
index d78bbb4..b16ec4d 100644
--- a/src/progress.c
+++ b/src/progress.c
@@ -20,6 +20,9 @@
 
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
 #include <gtk/gtk.h>
 #include "progress.h"
 
@@ -33,25 +36,26 @@ progress_cancel (GtkWidget * widget, gpointer data)
 
 
 Progress_t *
-progress_new (char *title, char *text, GtkWindow *parent,
+progress_new (char *title, char *text, GtkWindow * parent,
 	      GtkSignalFunc callback, gpointer callback_data)
 {
   GtkWidget *button, *label;
   GtkBox *vbox, *hbox;
   Progress_t *p;
 #if GTK_MAJOR_VERSION < 2
-  gint x,y;
+  gint x, y;
 #endif
 
   p = (Progress_t *) malloc (sizeof (Progress_t));
   p->callback = callback;
+  p->firstTime = 0;
 
   p->shell = gtk_dialog_new ();
 #if GTK_MAJOR_VERSION < 2
-  gtk_window_get_position (GTK_WINDOW(parent), &x, &y);
+  gtk_window_get_position (GTK_WINDOW (parent), &x, &y);
   gtk_widget_set_uposition (p->shell, x, y);
 #else
-  gtk_window_set_transient_for (GTK_WINDOW (p->shell),parent); 
+  gtk_window_set_transient_for (GTK_WINDOW (p->shell), parent);
 #endif
   gtk_window_set_title (GTK_WINDOW (p->shell), title);
   vbox = GTK_BOX (GTK_DIALOG (p->shell)->vbox);
@@ -67,17 +71,26 @@ progress_new (char *title, char *text, GtkWindow *parent,
   gtk_widget_set_usize (p->pbar, 200, 20);
   gtk_box_pack_start (vbox, p->pbar, TRUE, TRUE, 0);
 
+#ifdef HAVE_SYS_TIME_H
+  p->etaIndicator = gtk_label_new (ETA_LABEL ": ?");
+  gtk_misc_set_alignment (GTK_MISC (p->etaIndicator), 0.0, 0.5);
+  gtk_box_pack_start (vbox, p->etaIndicator, FALSE, TRUE, 0);
+#endif
+
   /* no cancel button if no callback */
   if (callback != NULL)
     {
       button = gtk_toggle_button_new_with_label ("Cancel");
       gtk_signal_connect (GTK_OBJECT (button), "clicked",
-		          (GtkSignalFunc) progress_cancel, p);
+			  (GtkSignalFunc) progress_cancel, p);
       gtk_box_pack_start (hbox, button, TRUE, TRUE, 0);
     }
 
   gtk_widget_show (label);
   gtk_widget_show (p->pbar);
+#ifdef HAVE_SYS_TIME_H
+  gtk_widget_show (p->etaIndicator);
+#endif
   if (callback != NULL)
     gtk_widget_show (button);
   gtk_widget_show (GTK_WIDGET (p->shell));
@@ -98,6 +111,61 @@ progress_free (Progress_t * p)
 void
 progress_update (Progress_t * p, gfloat newval)
 {
-  if (p)
-    gtk_progress_bar_update (GTK_PROGRESS_BAR (p->pbar), newval);
+#ifdef HAVE_SYS_TIME_H
+  struct timeval tv;
+  int now;
+  char buff[40];
+  int remaining;
+#endif
+
+  if (!p)
+    {
+      return;
+    }
+
+  gtk_progress_bar_update (GTK_PROGRESS_BAR (p->pbar), newval);
+
+#ifdef HAVE_SYS_TIME_H
+  gettimeofday (&tv, NULL);
+  now = tv.tv_sec * 1000 + tv.tv_usec / 1000;
+
+  if (p->firstTime == 0)
+    {
+      p->lastTime = p->firstTime = now;
+      p->firstVal = newval;
+      return;
+    }
+
+  if (newval > p->firstVal && now - p->lastTime > 1000)
+    {
+      remaining =
+	(int) ((now - p->firstTime) * (1.0 - newval) / (newval -
+							p->firstVal) /
+	       1000.0 + 0.9);
+
+      p->lastTime = now;
+
+      if (remaining >= 3600)
+	{
+	  snprintf (buff, sizeof (buff), ETA_LABEL ": %d h %d min",
+		    remaining / 3600, (remaining / 60) % 60);
+	}
+      else if (remaining >= 600)
+	{
+	  snprintf (buff, sizeof (buff), ETA_LABEL ": %d min",
+		    remaining / 60);
+	}
+      else if (remaining >= 60)
+	{
+	  snprintf (buff, sizeof (buff), ETA_LABEL ": %d min %d sec",
+		    remaining / 60, remaining % 60);
+	}
+      else
+	{
+	  snprintf (buff, sizeof (buff), ETA_LABEL ": %d sec", remaining);
+	}
+
+      gtk_label_set_text (GTK_LABEL (p->etaIndicator), buff);
+    }
+#endif
 }
diff --git a/src/progress.h b/src/progress.h
index 305d876..619721a 100644
--- a/src/progress.h
+++ b/src/progress.h
@@ -18,12 +18,18 @@
 #ifndef progress_h
 #define progress_h
 
+#define ETA_LABEL "Estimated time remaining"
+
 typedef struct Progress_t
 {
   GtkSignalFunc callback;
   gpointer callback_data;
   GtkWidget *shell;
   GtkWidget *pbar;
+  GtkWidget *etaIndicator;
+  gfloat firstVal;
+  int firstTime;
+  int lastTime;
 }
 Progress_t;