merge_all_tap_menus() has been moved to menus.c.
[obnox/wireshark/wip.git] / gtk / sctp_graph_dlg.c
index 2195f869d6fcb645181a64a19d6f5b14d7a01970..1aed3e8def3483552b1b97fb30264019ea35616a 100644 (file)
@@ -1,5 +1,6 @@
 /*
  * Copyright 2004, Irene Ruengeler <i.ruengeler [AT] fh-muenster.de>
+ * Copyright 2009, Varun Notibala <nbvarun [AT] gmail.com>
  *
  * $Id$
  *
@@ -26,7 +27,6 @@
 #  include <config.h>
 #endif
 #include <stdio.h>
-#include <stdlib.h>
 #include <math.h>
 #include <string.h>
 
@@ -36,7 +36,6 @@
 #include <epan/strutil.h>
 
 #include "../globals.h"
-#include "../color.h"
 #include "../ui_util.h"
 #include "../simple_dialog.h"
 
 #include "gtk/main.h"
 #include "gtk/sctp_stat.h"
 
+#include "gtk/old-gtk-compat.h"
 
 #define DEFAULT_PIXELS_PER_TICK 2
-#define MAX_PIXELS_PER_TICK 4
-#define AUTO_MAX_YSCALE 0
-#define MAX_TICK_VALUES 5
-#define DEFAULT_TICK_VALUE 3
-#define MAX_YSCALE 22
-#define MAX_COUNT_TYPES 3
+#define MAX_PIXELS_PER_TICK     4
+#define AUTO_MAX_YSCALE         0
+#define MAX_TICK_VALUES         5
+#define DEFAULT_TICK_VALUE      3
+#define MAX_YSCALE             22
+#define MAX_COUNT_TYPES         3
 
 #define COUNT_TYPE_FRAMES   0
 #define COUNT_TYPE_BYTES    1
 #define TOP_BORDER 10
 #define BOTTOM_BORDER 50
 
-#define SUB_32(a, b)   a-b
+#define SUB_32(a, b)   ((a)-(b))
 #define POINT_SIZE     3
 
+static GtkWidget * sack_bt;
+
+/*
+ * Global variables that help in redrawing graph
+ * for SACK and NRSACK
+ */
+static guint8 gIsSackChunkPresent   = 0;
+static guint8 gIsNRSackChunkPresent = 0;
+
 struct chunk_header {
        guint8  type;
        guint8  flags;
@@ -108,6 +117,18 @@ struct sack_chunk_header {
        struct gaps gaps[1];
 };
 
+struct nr_sack_chunk_header {
+       guint8  type;
+       guint8  flags;
+       guint16 length;
+       guint32 cum_tsn_ack;
+       guint32 a_rwnd;
+       guint16 nr_of_gaps;
+       guint16 nr_of_nr_gaps;
+       guint16 nr_of_dups;
+       guint16 reserved;
+       struct gaps gaps[1];
+};
 
 static gboolean label_set = FALSE;
 static guint32 max_tsn=0, min_tsn=0;
@@ -118,26 +139,23 @@ static GtkWidget *zoomout_bt;
 static int rint (double );     /* compiler template for Windows */
 #endif
 
-static void draw_sack_graph(struct sctp_udata *u_data)
+static void
+draw_sack_graph(struct sctp_udata *u_data)
 {
        tsn_t   *sack;
        GList *list=NULL, *tlist;
-       guint16 gap_start=0, gap_end=0, i, j, nr;
+       guint16 gap_start=0, gap_end=0, i, j, nr, dup_nr;
        guint8 type;
-       guint32 tsnumber;
+       guint32 tsnumber, dup;
        gint xvalue, yvalue;
        GdkColor red_color = {0, 65535, 0, 0};
        GdkColor green_color = {0, 0, 65535, 0};
-       GdkGC *red_gc, *green_gc;
+       GdkColor cyan_color = {0, 0, 65535, 65535};
        struct sack_chunk_header *sack_header;
        struct gaps *gap;
-       guint32 max_num, diff;
-
-       red_gc = gdk_gc_new(u_data->io->draw_area->window);
-       gdk_gc_set_rgb_fg_color(red_gc, &red_color);
-
-       green_gc = gdk_gc_new(u_data->io->draw_area->window);
-       gdk_gc_set_rgb_fg_color(green_gc, &green_color);
+       guint32 /*max_num,*/ diff;
+       guint32 *dup_list;
+       cairo_t * cr = NULL;
 
        if (u_data->dir==2)
        {
@@ -179,9 +197,11 @@ static void draw_sack_graph(struct sctp_udata *u_data)
 
                        if (type == SCTP_SACK_CHUNK_ID)
                        {
+                               gIsSackChunkPresent = 1;
                                sack_header =(struct sack_chunk_header *)tlist->data;
                                nr=g_ntohs(sack_header->nr_of_gaps);
                                tsnumber = g_ntohl(sack_header->cum_tsn_ack);
+                               dup_nr=g_ntohs(sack_header->nr_of_dups);
 
                                if (sack->secs>=u_data->io->x1_tmp_sec)
                                {
@@ -192,7 +212,7 @@ static void draw_sack_graph(struct sctp_udata *u_data)
                                                {
                                                        gap_start=g_ntohs(gap->start);
                                                        gap_end = g_ntohs(gap->end);
-                                                       max_num=gap_end+tsnumber;
+                                                       /* max_num=gap_end+tsnumber; */
                                                        for (j=gap_start; j<=gap_end; j++)
                                                        {
                                                                if (u_data->io->uoff)
@@ -200,22 +220,34 @@ static void draw_sack_graph(struct sctp_udata *u_data)
                                                                else
                                                                        diff=sack->secs*1000000+sack->usecs-u_data->io->min_x;
                                                                xvalue = (guint32)(LEFT_BORDER+u_data->io->offset+u_data->io->x_interval*diff);
-                                                               yvalue = (guint32)(u_data->io->pixmap_height-BOTTOM_BORDER-POINT_SIZE-u_data->io->offset-((SUB_32(j+tsnumber,min_tsn))*u_data->io->y_interval));
+                                                               yvalue = (guint32)(u_data->io->surface_height-BOTTOM_BORDER-POINT_SIZE-u_data->io->offset-((SUB_32(j+tsnumber,min_tsn))*u_data->io->y_interval));
                                                                if (xvalue >= LEFT_BORDER+u_data->io->offset &&
-                                                                   xvalue <= u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset &&
-                                                                   yvalue >= TOP_BORDER-u_data->io->offset &&
-                                                                   yvalue <= u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset)
-                                                                       gdk_draw_arc(u_data->io->pixmap,green_gc,TRUE,
-                                                                                   xvalue,
-                                                                                   yvalue,
-                                                                                   POINT_SIZE, POINT_SIZE,0, (64*360) );
+                                                                   xvalue <= u_data->io->surface_width-RIGHT_BORDER+u_data->io->offset &&
+                                                                   yvalue >= TOP_BORDER-u_data->io->offset-POINT_SIZE &&
+                                                                   yvalue <= u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)
+#if GTK_CHECK_VERSION(2,22,0)
+                                                                       cr = cairo_create (u_data->io->surface);
+#else
+                                                                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                                                       gdk_cairo_set_source_color (cr, &green_color);
+                                                                       cairo_arc(cr, 
+                                                                               xvalue, 
+                                                                               yvalue,
+                                                                               POINT_SIZE, 
+                                                                               0, 
+                                                                               2 * G_PI);
+                                                                       cairo_fill(cr);
+                                                                       cairo_destroy(cr);
                                                        }
                                                        if (i < nr-1)
                                                                gap++;
                                                }
                                        }
+                                       /*
                                        else
                                                max_num=tsnumber;
+                                       */
                                        if (tsnumber>=min_tsn)
                                        {
                                                if (u_data->io->uoff)
@@ -223,28 +255,275 @@ static void draw_sack_graph(struct sctp_udata *u_data)
                                                else
                                                        diff=sack->secs*1000000+sack->usecs-u_data->io->min_x;
                                                xvalue = (guint32)(LEFT_BORDER+u_data->io->offset+u_data->io->x_interval*diff);
-                                               yvalue = (guint32)(u_data->io->pixmap_height-BOTTOM_BORDER-POINT_SIZE -u_data->io->offset-((SUB_32(tsnumber,min_tsn))*u_data->io->y_interval));
-                                               if (xvalue >= LEFT_BORDER+u_data->io->offset && 
-                                                   xvalue <= u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset &&
-                                                   yvalue >= TOP_BORDER-u_data->io->offset &&
-                                                   yvalue <= u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset)
-                                                       gdk_draw_arc(u_data->io->pixmap,red_gc,TRUE,
-                                                                    xvalue,
-                                                                    yvalue,
-                                                                    POINT_SIZE, POINT_SIZE,0, (64*360) );
+                                               yvalue = (guint32)(u_data->io->surface_height-BOTTOM_BORDER-POINT_SIZE -u_data->io->offset-((SUB_32(tsnumber,min_tsn))*u_data->io->y_interval));
+                                               if (xvalue >= LEFT_BORDER+u_data->io->offset &&
+                                                   xvalue <= u_data->io->surface_width-RIGHT_BORDER+u_data->io->offset &&
+                                                   yvalue >= TOP_BORDER-u_data->io->offset-POINT_SIZE &&
+                                                   yvalue <= u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)
+                                                   {
+#if GTK_CHECK_VERSION(2,22,0)
+                                                               cr = cairo_create (u_data->io->surface);
+#else
+                                                               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                                               gdk_cairo_set_source_color (cr, &red_color);
+                                                               cairo_arc(cr, 
+                                                                       xvalue, 
+                                                                       yvalue,
+                                                                       POINT_SIZE, 
+                                                                       0, 
+                                                                       2 * G_PI);
+                                                               cairo_fill(cr);
+                                                               cairo_destroy(cr);
+
+                                                       }
+                                       }
+                                       if (dup_nr > 0)
+                                       {
+                                               dup_list = (guint32 *)(((char *)&sack_header->nr_of_dups)+sizeof(guint16)+(nr*sizeof(struct gaps)));
+                                               for (i = 0; i < dup_nr; i++)
+                                               {
+                                                       dup = g_ntohl(dup_list[i]);
+                                                       if (dup >= min_tsn)
+                                                       {
+                                                               if (u_data->io->uoff)
+                                                                       diff = sack->secs - u_data->io->min_x;
+                                                               else
+                                                                       diff=sack->secs*1000000+sack->usecs-u_data->io->min_x;
+                                                               xvalue = (guint32)(LEFT_BORDER+u_data->io->offset+u_data->io->x_interval*diff);
+                                                               yvalue = (guint32)(u_data->io->surface_height-BOTTOM_BORDER-POINT_SIZE -u_data->io->offset-((SUB_32(dup,min_tsn))*u_data->io->y_interval));
+                                                               if (xvalue >= LEFT_BORDER+u_data->io->offset &&
+                                                                   xvalue <= u_data->io->surface_width-RIGHT_BORDER+u_data->io->offset &&
+                                                                   yvalue >= TOP_BORDER-u_data->io->offset-POINT_SIZE &&
+                                                                   yvalue <= u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)
+#if GTK_CHECK_VERSION(2,22,0)
+                                                                       cr = cairo_create (u_data->io->surface);
+#else
+                                                                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                                                       gdk_cairo_set_source_color (cr, &cyan_color);
+                                                                       cairo_arc(cr, 
+                                                                               xvalue, 
+                                                                               yvalue,
+                                                                               POINT_SIZE, 
+                                                                               0, 
+                                                                               2 * G_PI);
+                                                                       cairo_fill(cr);
+                                                                       cairo_destroy(cr);
+                                                       }
+                                               }
                                        }
                                }
-                       tlist = g_list_next(tlist);
                        }
+                       tlist = g_list_next(tlist);
                }
                list = g_list_previous(list);
        }
-       g_object_unref(G_OBJECT(red_gc));
-       g_object_unref(G_OBJECT(green_gc));
 }
 
+/*
+ * This function plots the NR_SACK gap ack and
+ * nr gap acks.
+ * Red dot - Cumulative TSN ack
+ * Green dot - Gap ack
+ * Blue circle - NR Gap ack
+ */
+static void
+draw_nr_sack_graph(struct sctp_udata *u_data)
+{
+       tsn_t *sack;
+       GList *list=NULL, *tlist;
+       guint16 gap_start=0, gap_end=0, i, numberOf_gaps, numberOf_nr_gaps;
+       guint8 type;
+       guint32 tsnumber, j;
+       gint xvalue, yvalue;
+       GdkColor red_color = {0, 65535, 0, 0};
+       GdkColor blue_color = {0, 0, 0, 65535};
+       GdkColor green_color = {0, 0, 65535, 0};
+       struct nr_sack_chunk_header *nr_sack_header;
+       struct gaps *nr_gap;
+       guint32 /*max_num,*/ diff;
+       /* This holds the sum of gap acks and nr gap acks */
+       guint16 total_gaps = 0;
+       cairo_t *cr = NULL;
 
-static void draw_tsn_graph(struct sctp_udata *u_data)
+       if (u_data->dir==2)
+       {
+               list = g_list_last(u_data->assoc->sack2);
+               if (u_data->io->tmp==FALSE)
+               {
+                       min_tsn=u_data->assoc->min_tsn2;
+                       max_tsn=u_data->assoc->max_tsn2;
+               }
+               else
+               {
+                       min_tsn=u_data->assoc->min_tsn2+u_data->io->tmp_min_tsn2;
+                       max_tsn=u_data->assoc->min_tsn2+u_data->io->tmp_max_tsn2;
+               }
+       }
+       else if (u_data->dir==1)
+       {
+               list = g_list_last(u_data->assoc->sack1);
+               if (u_data->io->tmp==FALSE)
+               {
+                       min_tsn=u_data->assoc->min_tsn1;
+                       max_tsn=u_data->assoc->max_tsn1;
+               }
+               else
+               {
+                       min_tsn=u_data->assoc->min_tsn1+u_data->io->tmp_min_tsn1;
+                       max_tsn=u_data->assoc->min_tsn1+u_data->io->tmp_max_tsn1;
+               }
+       }
+       while (list)
+       {
+               sack = (tsn_t*) (list->data);
+               tlist = g_list_first(sack->tsns);
+               while (tlist)
+               {
+                       type = ((struct chunk_header *)tlist->data)->type;
+                       /*
+                        * The tlist->data is memcpy ied to the appropriate structure
+                        * They entire raw tvb bytes are copied on to one of the *_chunk_header
+                        * structures in sctp_stat.c
+                        */
+                       if (type == SCTP_NR_SACK_CHUNK_ID)
+                       {
+                               gIsNRSackChunkPresent = 1;
+                               nr_sack_header =(struct nr_sack_chunk_header *)tlist->data;
+                               numberOf_nr_gaps=g_ntohs(nr_sack_header->nr_of_nr_gaps);
+                               numberOf_gaps=g_ntohs(nr_sack_header->nr_of_gaps);
+                               tsnumber = g_ntohl(nr_sack_header->cum_tsn_ack);
+                               total_gaps = numberOf_gaps + numberOf_nr_gaps;
+                               if (sack->secs>=u_data->io->x1_tmp_sec)
+                               {
+                                       /* If the number of nr_gaps is greater than 0 */
+                                       if ( total_gaps > 0 )
+                                       {
+                                               nr_gap = &nr_sack_header->gaps[0];
+                                               for ( i=0; i < total_gaps; i++ )
+                                               {
+                                                       gap_start=g_ntohs(nr_gap->start);
+                                                       gap_end = g_ntohs(nr_gap->end);
+                                                       /* max_num= gap_end + tsnumber; */
+                                                       for ( j = gap_start; j <= gap_end; j++)
+                                                       {
+                                                               if (u_data->io->uoff)
+                                                                       diff = sack->secs - u_data->io->min_x;
+                                                               else
+                                                                       diff=sack->secs*1000000+sack->usecs-u_data->io->min_x;
+                                                               xvalue = (guint32)(LEFT_BORDER+u_data->io->offset+u_data->io->x_interval*diff);
+                                                               yvalue = (guint32)(u_data->io->surface_height-BOTTOM_BORDER-POINT_SIZE-u_data->io->offset-((SUB_32(j+tsnumber,min_tsn))*u_data->io->y_interval));
+                                                               if (xvalue >= LEFT_BORDER+u_data->io->offset &&
+                                                                   xvalue <= u_data->io->surface_width-RIGHT_BORDER+u_data->io->offset &&
+                                                                   yvalue >= TOP_BORDER-u_data->io->offset-POINT_SIZE &&
+                                                                   yvalue <= u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)
+                                                               {
+                                                                       /* Check if this is an GAP ACK or NR GAP ACK */
+                                                                       if ( i >= numberOf_gaps)
+                                                                       {
+                                                                               /* This is a nr gap ack */
+#if GTK_CHECK_VERSION(2,22,0)
+                                                                               cr = cairo_create (u_data->io->surface);
+#else
+                                                                               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                                                               gdk_cairo_set_source_color (cr, &blue_color);
+                                                                               cairo_arc(cr, 
+                                                                                       xvalue, 
+                                                                                       yvalue,
+                                                                                       POINT_SIZE, 
+                                                                                       0, 
+                                                                                       2 * G_PI);
+                                                                               cairo_stroke(cr);
+                                                                               cairo_destroy(cr);
+
+
+                                                                               /* All NR GAP Acks are also gap acks, so plot these as
+                                                                                * gap acks - green dot.
+                                                                                * These will be shown as points with a green dot - GAP ACK
+                                                                                * surrounded by a blue circle - NR GAP ack
+                                                                                */
+#if GTK_CHECK_VERSION(2,22,0)
+                                                                               cr = cairo_create (u_data->io->surface);
+#else
+                                                                               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                                                               gdk_cairo_set_source_color (cr, &green_color);
+                                                                               cairo_arc(cr, 
+                                                                                       xvalue, 
+                                                                                       yvalue,
+                                                                                       POINT_SIZE, 
+                                                                                       0, 
+                                                                                       2 * G_PI);
+                                                                               cairo_fill(cr);
+                                                                               cairo_destroy(cr);
+                                                                       }
+                                                                       else
+                                                                       {
+                                                                               /* This is just a gap ack */
+#if GTK_CHECK_VERSION(2,22,0)
+                                                                               cr = cairo_create (u_data->io->surface);
+#else
+                                                                               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                                                               gdk_cairo_set_source_color (cr, &green_color);
+                                                                               cairo_arc(cr, 
+                                                                                       xvalue, 
+                                                                                       yvalue,
+                                                                                       POINT_SIZE, 
+                                                                                       0, 
+                                                                                       2 * G_PI);
+                                                                               cairo_fill(cr);
+                                                                               cairo_destroy(cr);
+                                                                       }
+                                                               }
+                                                       }
+                                                       if (i < total_gaps-1)
+                                                               nr_gap++;
+                                               }
+                                       }
+                                       /*
+                                       else
+                                               max_num=tsnumber;
+                                       */
+                                       if (tsnumber>=min_tsn)
+                                       {
+                                               if (u_data->io->uoff)
+                                                       diff = sack->secs - u_data->io->min_x;
+                                               else
+                                                       diff=sack->secs*1000000+sack->usecs-u_data->io->min_x;
+                                               xvalue = (guint32)(LEFT_BORDER+u_data->io->offset+u_data->io->x_interval*diff);
+                                               yvalue = (guint32)(u_data->io->surface_height-BOTTOM_BORDER-POINT_SIZE -u_data->io->offset-((SUB_32(tsnumber,min_tsn))*u_data->io->y_interval));
+                                               if (xvalue >= LEFT_BORDER+u_data->io->offset &&
+                                                   xvalue <= u_data->io->surface_width-RIGHT_BORDER+u_data->io->offset &&
+                                                   yvalue >= TOP_BORDER-u_data->io->offset-POINT_SIZE &&
+                                                   yvalue <= u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)
+#if GTK_CHECK_VERSION(2,22,0)
+                                                       cr = cairo_create (u_data->io->surface);
+#else
+                                                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                                       gdk_cairo_set_source_color (cr, &red_color);
+                                                       cairo_arc(cr, 
+                                                               xvalue, 
+                                                               yvalue,
+                                                               POINT_SIZE, 
+                                                               0, 
+                                                               2 * G_PI);
+                                                       cairo_fill(cr);
+                                                       cairo_destroy(cr);
+                                       }
+                               }
+                       }
+                       tlist = g_list_next(tlist);
+               }
+               list = g_list_previous(list);
+       }
+}
+
+static void
+draw_tsn_graph(struct sctp_udata *u_data)
 {
        tsn_t *tsn;
        GList *list=NULL, *tlist;
@@ -252,6 +531,7 @@ static void draw_tsn_graph(struct sctp_udata *u_data)
        guint32 tsnumber=0;
        guint32 min_secs=0, diff;
        gint xvalue, yvalue;
+       cairo_t *cr = NULL;
 
        if (u_data->dir==1)
        {
@@ -298,15 +578,25 @@ static void draw_tsn_graph(struct sctp_udata *u_data)
                                        else
                                                diff=tsn->secs*1000000+tsn->usecs-u_data->io->min_x;
                                        xvalue = (guint32)(LEFT_BORDER+u_data->io->offset+u_data->io->x_interval*diff);
-                                       yvalue = (guint32)(u_data->io->pixmap_height-BOTTOM_BORDER-POINT_SIZE-u_data->io->offset-((SUB_32(tsnumber,min_tsn))*u_data->io->y_interval));
-                                       if (xvalue >= LEFT_BORDER+u_data->io->offset && 
-                                           xvalue <= u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset &&
-                                           yvalue >= TOP_BORDER-u_data->io->offset &&
-                                           yvalue <= u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset)
-                                               gdk_draw_arc(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,TRUE,
-                                                            xvalue,
-                                                            yvalue,
-                                                            POINT_SIZE, POINT_SIZE, 0, (64*360));
+                                       yvalue = (guint32)(u_data->io->surface_height-BOTTOM_BORDER-POINT_SIZE-u_data->io->offset-((SUB_32(tsnumber,min_tsn))*u_data->io->y_interval));
+                                       if (xvalue >= LEFT_BORDER+u_data->io->offset &&
+                                           xvalue <= u_data->io->surface_width-RIGHT_BORDER+u_data->io->offset &&
+                                           yvalue >= TOP_BORDER-u_data->io->offset-POINT_SIZE &&
+                                           yvalue <= u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)
+#if GTK_CHECK_VERSION(2,22,0)
+                                               cr = cairo_create (u_data->io->surface);
+#else
+                                               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                               cairo_arc(cr, 
+                                                       xvalue, 
+                                                       yvalue,
+                                                       POINT_SIZE, 
+                                                       0, 
+                                                       2 * G_PI);
+                                               cairo_fill(cr);
+                                               cairo_destroy(cr);
+
                        }
                        tlist = g_list_next(tlist);
                }
@@ -315,7 +605,8 @@ static void draw_tsn_graph(struct sctp_udata *u_data)
 }
 
 
-static void sctp_graph_draw(struct sctp_udata *u_data)
+static void
+sctp_graph_draw(struct sctp_udata *u_data)
 {
        int length, lwidth;
        guint32  distance=5, i, e, sec, w, start, a, b, j;
@@ -324,6 +615,8 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
        gfloat dis;
        gboolean write_label = FALSE;
        PangoLayout  *layout;
+       GtkAllocation widget_alloc;
+       cairo_t *cr;
 
        if (u_data->io->x1_tmp_sec==0 && u_data->io->x1_tmp_usec==0)
                u_data->io->offset=0;
@@ -378,19 +671,41 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
                }
        }
 
-       gdk_draw_rectangle(u_data->io->pixmap,
-                          u_data->io->draw_area->style->white_gc,
-                          TRUE,
-                          0, 0,
-                          u_data->io->draw_area->allocation.width,
-                          u_data->io->draw_area->allocation.height);
+#if GTK_CHECK_VERSION(2,22,0)
+       cr = cairo_create (u_data->io->surface);
+#else
+       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+       cairo_set_source_rgb (cr, 1, 1, 1);
+       gtk_widget_get_allocation(u_data->io->draw_area, &widget_alloc);
+       cairo_rectangle (cr,
+               0,
+               0,
+               widget_alloc.width,
+               widget_alloc.height);
+       cairo_fill (cr);
+       cairo_destroy (cr);
 
        distance=5;
        /* x_axis */
-       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc, LEFT_BORDER+u_data->io->offset,u_data->io->pixmap_height-BOTTOM_BORDER,u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset, u_data->io->pixmap_height-BOTTOM_BORDER);
-       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset, u_data->io->pixmap_height-BOTTOM_BORDER, u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset-5, u_data->io->pixmap_height-BOTTOM_BORDER-5);
-       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset, u_data->io->pixmap_height-BOTTOM_BORDER, u_data->io->pixmap_width-RIGHT_BORDER+u_data->io->offset-5, u_data->io->pixmap_height-BOTTOM_BORDER+5);
-       u_data->io->axis_width=u_data->io->pixmap_width-LEFT_BORDER-RIGHT_BORDER-u_data->io->offset;
+#if GTK_CHECK_VERSION(2,22,0)
+       cr = cairo_create (u_data->io->surface);
+#else
+       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+       cairo_set_line_width (cr, 1.0);
+       cairo_move_to(cr, LEFT_BORDER+u_data->io->offset+0.5, u_data->io->surface_height - BOTTOM_BORDER+0.5);
+       cairo_line_to(cr, u_data->io->surface_width - RIGHT_BORDER + u_data->io->offset+0.5, u_data->io->surface_height - BOTTOM_BORDER+0.5);
+
+       cairo_move_to(cr, u_data->io->surface_width - RIGHT_BORDER + u_data->io->offset+0.5, u_data->io->surface_height - BOTTOM_BORDER+0.5);
+       cairo_line_to(cr, u_data->io->surface_width - RIGHT_BORDER + u_data->io->offset - 5+0.5, u_data->io->surface_height - BOTTOM_BORDER - 5+0.5);
+
+       cairo_move_to(cr, u_data->io->surface_width - RIGHT_BORDER + u_data->io->offset + 0.5, u_data->io->surface_height - BOTTOM_BORDER + 0.5);
+       cairo_line_to(cr, u_data->io->surface_width - RIGHT_BORDER + u_data->io->offset - 5.5, u_data->io->surface_height - BOTTOM_BORDER + 5.5);
+       cairo_stroke(cr);
+       cairo_destroy(cr);
+
+       u_data->io->axis_width=u_data->io->surface_width-LEFT_BORDER-RIGHT_BORDER-u_data->io->offset;
 
        /* try to avoid dividing by zero */
        if(u_data->io->tmp_width>0){
@@ -415,8 +730,8 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
        else
                distance=5;
 
-       g_snprintf(label_string, 15, "%d", 0);
-       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), 15);
+       g_snprintf(label_string, sizeof(label_string), "%d", 0);
+       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), sizeof(label_string));
        layout = gtk_widget_create_pango_layout(u_data->io->draw_area, label_string);
        pango_layout_get_pixel_size(layout, &label_width, &label_height);
 
@@ -428,23 +743,31 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
 
        if (u_data->io->offset!=0)
        {
-               g_snprintf(label_string, 15, "%u", u_data->io->x1_tmp_sec);
+               g_snprintf(label_string, sizeof(label_string), "%u", u_data->io->x1_tmp_sec);
 
-               memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), 15);
+               memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), sizeof(label_string));
                pango_layout_set_text(layout, label_string, -1);
                pango_layout_get_pixel_size(layout, &lwidth, NULL);
 
-               gdk_draw_layout(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,
-                               LEFT_BORDER-25,
-                               u_data->io->pixmap_height-BOTTOM_BORDER+20,
-                               layout);
+#if GTK_CHECK_VERSION(2,22,0)
+               cr = cairo_create (u_data->io->surface);
+#else
+               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+               cairo_move_to (cr, 
+                       LEFT_BORDER-25,
+                       u_data->io->surface_height-BOTTOM_BORDER+20);
+               pango_cairo_show_layout (cr, layout);
+               cairo_destroy (cr);
+               cr = NULL;
+
        }
 
        w=(guint32)(500/(guint32)(distance*u_data->io->x_interval)); /*there will be a label for every w_th tic*/
 
        if (w==0)
                w=1;
-       
+
        if (w==4 || w==3 || w==2)
        {
                w=5;
@@ -456,9 +779,9 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
                a=distance/5;
                b=0;
        }
-       
 
-       if (!u_data->io->uoff)  
+
+       if (!u_data->io->uoff)
        {
                if (a>=1000000)
                {
@@ -481,7 +804,7 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
                if (start%2!=0)
                        start--;
                b = 0;
-               
+
        }
 
        for (i=start, j=b; i<=u_data->io->max_x; i+=a, j++)
@@ -490,23 +813,40 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
                if (i>=u_data->io->min_x && i%1000000!=0)
                {
                        length=5;
-                       g_snprintf(label_string, 15, "%d", i%1000000);
+                       g_snprintf(label_string, sizeof(label_string), "%d", i%1000000);
                        if (j%w==0)
                        {
                                length=10;
-                               memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), 15);
+                               memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), sizeof(label_string));
                                pango_layout_set_text(layout, label_string, -1);
                                pango_layout_get_pixel_size(layout, &lwidth, NULL);
-                               gdk_draw_layout(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,
-                                       (guint32)(LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval-lwidth/2),
-                                       u_data->io->pixmap_height-BOTTOM_BORDER+10,
-                                       layout);
+#if GTK_CHECK_VERSION(2,22,0)
+                               cr = cairo_create (u_data->io->surface);
+#else
+                               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                               cairo_move_to (cr, 
+                                       LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval-lwidth/2,
+                                       u_data->io->surface_height-BOTTOM_BORDER+10);
+                               pango_cairo_show_layout (cr, layout);
+                               cairo_destroy (cr);
+                               cr = NULL;
+
                        }
-                       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,
-                               (guint32)(LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval),
-                               u_data->io->pixmap_height-BOTTOM_BORDER,
-                               (guint32)(LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval),
-                               u_data->io->pixmap_height-BOTTOM_BORDER+length);
+#if GTK_CHECK_VERSION(2,22,0)
+                       cr = cairo_create (u_data->io->surface);
+#else
+                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                       cairo_set_line_width (cr, 1.0);
+                       cairo_move_to(cr, 
+                               LEFT_BORDER + u_data->io->offset + (i - u_data->io->min_x) * u_data->io->x_interval + 0.5, 
+                               u_data->io->surface_height - BOTTOM_BORDER + 0.5);
+                       cairo_line_to(cr, 
+                               LEFT_BORDER + u_data->io->offset + (i - u_data->io->min_x) * u_data->io->x_interval + 0.5, 
+                               u_data->io->surface_height - BOTTOM_BORDER + length + 0.5);
+                       cairo_stroke(cr);
+                       cairo_destroy(cr);
                }
 
                if (!u_data->io->uoff)
@@ -527,45 +867,82 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
                }
                if (write_label)
                {
-                       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,
-                                     (guint32)(LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval),
-                                     u_data->io->pixmap_height-BOTTOM_BORDER,
-                                     (guint32)(LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval),
-                                     u_data->io->pixmap_height-BOTTOM_BORDER+10);
-
-                       g_snprintf(label_string, 15, "%d", sec);
-                       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), 15);
+#if GTK_CHECK_VERSION(2,22,0)
+                       cr = cairo_create (u_data->io->surface);
+#else
+                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                       cairo_set_line_width (cr, 1.0);
+                       cairo_move_to(cr, 
+                               LEFT_BORDER + u_data->io->offset + (i - u_data->io->min_x) * u_data->io->x_interval + 0.5, 
+                               u_data->io->surface_height - BOTTOM_BORDER + 0.5);
+                       cairo_line_to(cr, 
+                               LEFT_BORDER + u_data->io->offset + (i - u_data->io->min_x) * u_data->io->x_interval + 0.5, 
+                               u_data->io->surface_height - BOTTOM_BORDER + 10 + 0.5);
+                       cairo_stroke(cr);
+                       cairo_destroy(cr);
+
+                       g_snprintf(label_string, sizeof(label_string), "%d", sec);
+                       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), sizeof(label_string));
                        pango_layout_set_text(layout, label_string, -1);
                        pango_layout_get_pixel_size(layout, &lwidth, NULL);
 
-                       gdk_draw_layout(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,
-                                       (guint32)(LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval-10),
-                                       u_data->io->pixmap_height-BOTTOM_BORDER+20,
-                                       layout);
+#if GTK_CHECK_VERSION(2,22,0)
+                       cr = cairo_create (u_data->io->surface);
+#else
+                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                       cairo_move_to (cr, 
+                               LEFT_BORDER+u_data->io->offset+(i-u_data->io->min_x)*u_data->io->x_interval-10,
+                               u_data->io->surface_height-BOTTOM_BORDER+20);
+                       pango_cairo_show_layout (cr, layout);
+                       cairo_destroy (cr);
+                       cr = NULL;
+
                        write_label = FALSE;
                }
-               
+
        }
 
-       g_strlcpy(label_string, "sec", 15);
+       g_strlcpy(label_string, "sec", sizeof(label_string));
 
-       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), 15);
+       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), sizeof(label_string));
        pango_layout_set_text(layout, label_string, -1);
        pango_layout_get_pixel_size(layout, &lwidth, NULL);
-       gdk_draw_layout(u_data->io->pixmap,
-                       u_data->io->draw_area->style->black_gc,
-                       u_data->io->pixmap_width-RIGHT_BORDER-10,
-                       u_data->io->pixmap_height-BOTTOM_BORDER+30,
-                       layout);
+#if GTK_CHECK_VERSION(2,22,0)
+       cr = cairo_create (u_data->io->surface);
+#else
+       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+       cairo_move_to (cr, 
+               u_data->io->surface_width-RIGHT_BORDER-10,
+               u_data->io->surface_height-BOTTOM_BORDER+30);
+       pango_cairo_show_layout (cr, layout);
+       cairo_destroy (cr);
+       cr = NULL;
+
 
        distance=5;
 
        /* y-axis */
-       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc, LEFT_BORDER,TOP_BORDER-u_data->io->offset,LEFT_BORDER,u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset);
-       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,LEFT_BORDER,TOP_BORDER-u_data->io->offset, LEFT_BORDER-5, TOP_BORDER-u_data->io->offset+5);
-       gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,LEFT_BORDER,TOP_BORDER-u_data->io->offset, LEFT_BORDER+5, TOP_BORDER-u_data->io->offset+5);
+#if GTK_CHECK_VERSION(2,22,0)
+       cr = cairo_create (u_data->io->surface);
+#else
+       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+       cairo_set_line_width (cr, 1.0);
+       cairo_move_to(cr, LEFT_BORDER + 0.5, TOP_BORDER - u_data->io->offset + 0.5);
+       cairo_line_to(cr, LEFT_BORDER + 0.5, u_data->io->surface_height - BOTTOM_BORDER - u_data->io->offset + 0.5);
+       cairo_move_to(cr, LEFT_BORDER + 0.5, TOP_BORDER - u_data->io->offset + 0.5); 
+       cairo_line_to(cr, LEFT_BORDER - 5 + 0.5, TOP_BORDER - u_data->io->offset + 5 + 0.5);
+
+       cairo_move_to(cr, LEFT_BORDER + 0.5, TOP_BORDER - u_data->io->offset + 0.5);
+       cairo_line_to(cr, LEFT_BORDER +5 + 0.5, TOP_BORDER - u_data->io->offset + 5 + 0.5);
+       cairo_stroke(cr);
+       cairo_destroy(cr);
 
-       u_data->io->y_interval = (float)(((u_data->io->pixmap_height-TOP_BORDER-BOTTOM_BORDER)*1.0)/(u_data->io->max_y-u_data->io->min_y));
+       u_data->io->y_interval = (float)(((u_data->io->surface_height-TOP_BORDER-BOTTOM_BORDER)*1.0)/(u_data->io->max_y-u_data->io->min_y));
 
        e=0;
        if (u_data->io->y_interval<1)
@@ -590,34 +967,78 @@ static void sctp_graph_draw(struct sctp_udata *u_data)
                        if (i>=u_data->io->min_y)
                        {
                                length=5;
-                               g_snprintf(label_string, 15, "%d", i);
+                               g_snprintf(label_string, sizeof(label_string), "%d", i);
                                if (i%distance==0 || (distance<=5 && u_data->io->y_interval>10))
                                {
                                        length=10;
 
-                                       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), 15);
+                                       memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), sizeof(label_string));
                                        pango_layout_set_text(layout, label_string, -1);
                                        pango_layout_get_pixel_size(layout, &lwidth, NULL);
-                                       gdk_draw_layout(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,
-                                                       LEFT_BORDER-length-lwidth-5,
-                                                       (guint32)(u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-(i-u_data->io->min_y)*u_data->io->y_interval-POINT_SIZE),
-                                                       layout);
+#if GTK_CHECK_VERSION(2,22,0)
+                                       cr = cairo_create (u_data->io->surface);
+#else
+                                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                                       cairo_move_to (cr, 
+                                               LEFT_BORDER-length-lwidth-5,
+                                               u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset-(i-u_data->io->min_y)*u_data->io->y_interval-POINT_SIZE);
+                                       pango_cairo_show_layout (cr, layout);
+                                       cairo_destroy (cr);
+                                       cr = NULL;
+
                                }
-                               gdk_draw_line(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,LEFT_BORDER-length,
-                                             (guint32)(u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-(i-u_data->io->min_y)*u_data->io->y_interval),
-                                             LEFT_BORDER,
-                                             (guint32)(u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-(i-u_data->io->min_y)*u_data->io->y_interval));
+#if GTK_CHECK_VERSION(2,22,0)
+                               cr = cairo_create (u_data->io->surface);
+#else
+                               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+                               cairo_set_line_width (cr, 1.0);
+                               cairo_move_to(cr, 
+                                       LEFT_BORDER - length + 0.5, 
+                                       u_data->io->surface_height - BOTTOM_BORDER - u_data->io->offset - (i - u_data->io->min_y) * u_data->io->y_interval + 0.5);
+                               cairo_line_to(cr, 
+                                       LEFT_BORDER + 0.5, 
+                                       u_data->io->surface_height - BOTTOM_BORDER - u_data->io->offset - (i - u_data->io->min_y) * u_data->io->y_interval + 0.5);
+                               cairo_stroke(cr);
+                               cairo_destroy(cr);
+
                        }
                }
        }
        else if ((u_data->dir==1 && u_data->assoc->n_array_tsn1==0) || (u_data->dir==2 && u_data->assoc->n_array_tsn2==0))
                simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK, "No Data Chunks sent");
+
+       g_object_unref(G_OBJECT(layout));
 }
 
+/* This function is used to change the title
+ * in the graph dialogue to NR_SACK or SACK based on the
+ * association
+ * If an association has both SAKC and NR_SACK PDU's
+ * a warning is popped
+ */
+static void
+updateLabels(void)
+{
+       if (gIsSackChunkPresent && gIsNRSackChunkPresent)
+       {
+               simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK, "This data set contains both SACK and NR SACK PDUs.");
+               gtk_button_set_label( (GtkButton*) sack_bt, "Show both Sack and NR Sack");
+       }
+       else if (gIsSackChunkPresent)
+               gtk_button_set_label( (GtkButton*) sack_bt, "Show Only Sack");
+       else
+               /* gIsNRSackChunkPresent will be true here */
+               gtk_button_set_label( (GtkButton*) sack_bt, "Show Only NR Sack");
+}
 
-static void sctp_graph_redraw(struct sctp_udata *u_data)
+static void
+sctp_graph_redraw(struct sctp_udata *u_data)
 {
-sctp_graph_t *ios;
+       sctp_graph_t *ios;
+       GtkAllocation widget_alloc;
+       cairo_t *cr;
 
        u_data->io->needs_redraw=TRUE;
 
@@ -625,121 +1046,167 @@ sctp_graph_t *ios;
        switch (u_data->io->graph_type)
        {
                case 0:
+                       /* Show both TSN and SACK information
+                        * Reset the global sack variable
+                        * for sack and nr sack cases
+                        */
+                       gIsSackChunkPresent = 0;
+                       gIsNRSackChunkPresent = 0;
                        draw_sack_graph(u_data);
+                       draw_nr_sack_graph(u_data);
                        draw_tsn_graph(u_data);
                        break;
                case 1:
+                       /* Show only TSN */
                        draw_tsn_graph(u_data);
                        break;
                case 2:
+                       /* Show only SACK information
+                        * Reset the global sack variable
+                        * for sack and nr sack cases
+                        */
+                       gIsSackChunkPresent = 0;
+                       gIsNRSackChunkPresent = 0;
                        draw_sack_graph(u_data);
+                       draw_nr_sack_graph(u_data);
                        break;
        }
+
+       /* Updates the sack / nr sack buttons */
+       updateLabels();
+
        ios=(sctp_graph_t *)g_object_get_data(G_OBJECT(u_data->io->draw_area), "sctp_graph_t");
+       g_assert(ios != NULL);
 
-       if(!ios){
-               exit(10);
-       }
+       cr = gdk_cairo_create (gtk_widget_get_window(u_data->io->draw_area));
 
+#if GTK_CHECK_VERSION(2,22,0)
+       cairo_set_source_surface (cr, ios->surface, 0, 0); 
+#else
+       gdk_cairo_set_source_pixmap (cr, ios->pixmap, 0, 0);
+#endif
+       gtk_widget_get_allocation(u_data->io->draw_area, &widget_alloc);
+       cairo_rectangle (cr, 0, 0, widget_alloc.width, widget_alloc.height);
+       cairo_fill (cr);
 
-       gdk_draw_pixmap(u_data->io->draw_area->window,
-                       u_data->io->draw_area->style->fg_gc[GTK_WIDGET_STATE(u_data->io->draw_area)],
-                       ios->pixmap,
-                       0,0,
-                       0, 0,
-                       u_data->io->draw_area->allocation.width,
-                       u_data->io->draw_area->allocation.height);
+       cairo_destroy (cr);
 }
 
 
-static void on_sack_bt(GtkWidget *widget _U_, struct sctp_udata *u_data)
+static void
+on_sack_bt(GtkWidget *widget _U_, gpointer user_data)
 {
+       struct sctp_udata *u_data = user_data;
 
-       u_data = (struct sctp_udata *) u_data;
        u_data->io->graph_type=2;
        sctp_graph_redraw(u_data);
 }
 
-static void on_tsn_bt(GtkWidget *widget _U_, struct sctp_udata *u_data)
+static void
+on_tsn_bt(GtkWidget *widget _U_, gpointer user_data)
 {
+       struct sctp_udata *u_data = user_data;
 
        u_data->io->graph_type=1;
        sctp_graph_redraw(u_data);
 }
 
-static void on_both_bt(GtkWidget *widget _U_, struct sctp_udata *u_data)
+static void
+on_both_bt(GtkWidget *widget _U_, gpointer user_data)
 {
+       struct sctp_udata *u_data = user_data;
 
        u_data->io->graph_type=0;
        sctp_graph_redraw(u_data);
 }
 
 static void
-sctp_graph_close_cb(GtkWidget* widget _U_, gpointer u_data)
+sctp_graph_close_cb(GtkWidget* widget _U_, gpointer user_data)
 {
-       struct sctp_udata *udata;
-       int dir;
+       struct sctp_udata *u_data = user_data;
 
-       udata = (struct sctp_udata *)u_data;
-       dir=udata->dir-1;
-       gtk_grab_remove(GTK_WIDGET(udata->io->window));
-       gtk_widget_destroy(GTK_WIDGET(udata->io->window));
+       gtk_grab_remove(GTK_WIDGET(u_data->io->window));
+       gtk_widget_destroy(GTK_WIDGET(u_data->io->window));
 
 }
 
-static gint
-configure_event(GtkWidget *widget, GdkEventConfigure *event _U_, struct sctp_udata *u_data)
+static gboolean
+configure_event(GtkWidget *widget, GdkEventConfigure *event _U_, gpointer user_data)
 {
-       if(!u_data->io){
-               exit(10);
-       }
+       struct sctp_udata *u_data = user_data;
+       GtkAllocation widget_alloc;
+       cairo_t *cr;
+
+       g_assert(u_data->io != NULL);
 
+#if GTK_CHECK_VERSION(2,22,0)
+       if(u_data->io->surface){
+                cairo_surface_destroy (u_data->io->surface);
+               u_data->io->surface=NULL;
+       }
+       gtk_widget_get_allocation(widget, &widget_alloc);
+       u_data->io->surface = gdk_window_create_similar_surface (gtk_widget_get_window(widget),
+                       CAIRO_CONTENT_COLOR,
+                       widget_alloc.width,
+                       widget_alloc.height);
+#else
        if(u_data->io->pixmap){
-               gdk_pixmap_unref(u_data->io->pixmap);
+               g_object_unref(u_data->io->pixmap);
                u_data->io->pixmap=NULL;
        }
-
-       u_data->io->pixmap=gdk_pixmap_new(widget->window,
-                       widget->allocation.width,
-                       widget->allocation.height,
+       gtk_widget_get_allocation(widget, &widget_alloc);
+       u_data->io->pixmap=gdk_pixmap_new(gtk_widget_get_window(widget),
+                       widget_alloc.width,
+                       widget_alloc.height,
                        -1);
-       u_data->io->pixmap_width=widget->allocation.width;
-       u_data->io->pixmap_height=widget->allocation.height;
-
-       gdk_draw_rectangle(u_data->io->pixmap,
-                       widget->style->white_gc,
-                       TRUE,
-                       0, 0,
-                       widget->allocation.width,
-                       widget->allocation.height);
+#endif
+
+       u_data->io->surface_width=widget_alloc.width;
+       u_data->io->surface_height=widget_alloc.height;
+
+#if GTK_CHECK_VERSION(2,22,0)
+       cr = cairo_create (u_data->io->surface);
+#else
+       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif
+       cairo_rectangle (cr, 0, 0, widget_alloc.width, widget_alloc.height);
+       cairo_set_source_rgb (cr, 1, 1, 1);
+       cairo_fill (cr);
+       cairo_destroy (cr);
+
        sctp_graph_redraw(u_data);
        return TRUE;
 }
 
-static gint
-expose_event(GtkWidget *widget, GdkEventExpose *event)
+static gboolean
+expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer user_data _U_)
 {
        sctp_graph_t *ios;
+       cairo_t *cr;
 
        ios=(sctp_graph_t *)g_object_get_data(G_OBJECT(widget), "sctp_graph_t");
-       if(!ios){
-               exit(10);
-       }
+       g_assert(ios != NULL);
 
-       gdk_draw_pixmap(widget->window,
-                       widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
-                       ios->pixmap,
-                       event->area.x, event->area.y,
-                       event->area.x, event->area.y,
-                       event->area.width, event->area.height);
+       cr = gdk_cairo_create (gtk_widget_get_window(widget));
+
+#if GTK_CHECK_VERSION(2,22,0)
+       cairo_set_source_surface (cr, ios->surface, 0, 0); 
+#else
+       gdk_cairo_set_source_pixmap (cr, ios->pixmap, 0, 0);
+#endif
+       cairo_rectangle (cr, event->area.x, event->area.y, event->area.width, event->area.height);
+       cairo_fill (cr);
+
+       cairo_destroy (cr);
 
        return FALSE;
 }
 
 
 static void
-on_zoomin_bt (GtkWidget *widget _U_, struct sctp_udata *u_data)
+on_zoomin_bt (GtkWidget *widget _U_, gpointer user_data)
 {
+       struct sctp_udata *u_data = user_data;
        sctp_min_max_t *tmp_minmax;
 
        if (u_data->io->rectangle_present==TRUE)
@@ -773,7 +1240,7 @@ on_zoomin_bt (GtkWidget *widget _U_, struct sctp_udata *u_data)
 }
 
 static void
-zoomin_bt (struct sctp_udata *u_data)
+zoomin_bt_fcn (struct sctp_udata *u_data)
 {
        sctp_min_max_t *tmp_minmax;
 
@@ -798,14 +1265,15 @@ zoomin_bt (struct sctp_udata *u_data)
        u_data->io->rectangle_present=FALSE;
        gtk_widget_set_sensitive(zoomout_bt, TRUE);
        sctp_graph_redraw(u_data);
-       
+
 }
 
 
 
 static void
-on_zoomout_bt (GtkWidget *widget _U_, struct sctp_udata *u_data)
+on_zoomout_bt (GtkWidget *widget _U_, gpointer user_data)
 {
+       struct sctp_udata *u_data = user_data;
        sctp_min_max_t *tmp_minmax, *mm;
        gint l;
 
@@ -859,38 +1327,51 @@ on_zoomout_bt (GtkWidget *widget _U_, struct sctp_udata *u_data)
        sctp_graph_redraw(u_data);
 }
 
-static gint
-on_button_press (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_udata *u_data)
+static gboolean
+on_button_press_event (GtkWidget *widget _U_, GdkEventButton *event, gpointer user_data)
 {
+       struct sctp_udata *u_data = user_data;
        sctp_graph_t *ios;
+       cairo_t *cr;
 
        if (u_data->io->rectangle==TRUE)
        {
-               gdk_draw_rectangle(u_data->io->pixmap,u_data->io->draw_area->style->white_gc,
-                                  FALSE,
-                                  (gint)floor(MIN(u_data->io->x_old,u_data->io->x_new)),
-                                  (gint)floor(MIN(u_data->io->y_old,u_data->io->y_new)),
-                                  (gint)floor(abs((long)(u_data->io->x_new-u_data->io->x_old))),
-                                  (gint)floor(abs((long)(u_data->io->y_new-u_data->io->y_old))));
+#if GTK_CHECK_VERSION(2,22,0)
+               cr = cairo_create (u_data->io->surface);
+#else
+               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif 
+               cairo_rectangle (cr, 
+                       floor(MIN(u_data->io->x_old,u_data->io->x_new)), 
+                       floor(MIN(u_data->io->y_old,u_data->io->y_new)), 
+                       floor(abs((long)(u_data->io->x_new-u_data->io->x_old))), 
+                       floor(abs((long)(u_data->io->y_new-u_data->io->y_old))));
+               cairo_set_source_rgb (cr, 1, 1, 1);
+               cairo_stroke (cr);
+               cairo_destroy (cr);
+
                ios=(sctp_graph_t *)g_object_get_data(G_OBJECT(u_data->io->draw_area), "sctp_graph_t");
 
-               if(!ios){
-                       exit(10);
-               }
+               g_assert(ios != NULL);
+
+               cr = gdk_cairo_create (gtk_widget_get_window(u_data->io->draw_area));
+
+#if GTK_CHECK_VERSION(2,22,0)
+               cairo_set_source_surface (cr, ios->surface, 0, 0); 
+#else
+               gdk_cairo_set_source_pixmap (cr, ios->pixmap, 0, 0);
+#endif
+               cairo_rectangle (cr, 0, 0, abs((long)(u_data->io->x_new-u_data->io->x_old)), abs((long)(u_data->io->y_new-u_data->io->y_old)));
+               cairo_fill (cr);
+
+               cairo_destroy (cr);
 
-               gdk_draw_pixmap(u_data->io->draw_area->window,
-                               u_data->io->draw_area->style->fg_gc[GTK_WIDGET_STATE(u_data->io->draw_area)],
-                               ios->pixmap,
-                               0,0,
-                               0, 0,
-                               (gint)(abs((long)(u_data->io->x_new-u_data->io->x_old))),
-                               (gint)(abs((long)(u_data->io->y_new-u_data->io->y_old))));
                sctp_graph_redraw(u_data);
        }
        u_data->io->x_old=event->x;
        u_data->io->y_old=event->y;
-       if (u_data->io->y_old>u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-POINT_SIZE)
-               u_data->io->y_old=u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-POINT_SIZE;
+       if (u_data->io->y_old>u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset-POINT_SIZE)
+               u_data->io->y_old=u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset-POINT_SIZE;
        if (u_data->io->x_old<LEFT_BORDER+u_data->io->offset)
                u_data->io->x_old=LEFT_BORDER+u_data->io->offset;
        u_data->io->rectangle=FALSE;
@@ -899,28 +1380,30 @@ on_button_press (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_udata
 }
 
 
-static gint
-on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_udata *u_data)
+static gboolean
+on_button_release_event (GtkWidget *widget _U_, GdkEventButton *event, gpointer user_data)
 {
+       struct sctp_udata *u_data = user_data;
        sctp_graph_t *ios;
        guint32 helpx, helpy, x1_tmp, x2_tmp,  y_value, t_size=0, s_size=0, i, y_tolerance;
        gint label_width, label_height;
        gdouble x_value, position, s_diff=0, t_diff=0, x_tolerance=0.0001;
        gint lwidth;
        char label_string[30];
-       GdkGC *text_color;
        GPtrArray *tsnlist = NULL, *sacklist=NULL;
        struct tsn_sort *tsn, *sack=NULL;
        gboolean sack_found = FALSE;
+       GtkAllocation widget_alloc;
        PangoLayout  *layout;
+       cairo_t *cr;
 
        g_snprintf(label_string, 15, "%d", 0);
        memcpy(label_string,(gchar *)g_locale_to_utf8(label_string, -1 , NULL, NULL, NULL), 15);
        layout = gtk_widget_create_pango_layout(u_data->io->draw_area, label_string);
        pango_layout_get_pixel_size(layout, &label_width, &label_height);
 
-       if (event->y>u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset)
-               event->y = u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset;
+       if (event->y>u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)
+               event->y = u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset;
        if (event->x < LEFT_BORDER+u_data->io->offset)
                event->x = LEFT_BORDER+u_data->io->offset;
        if (abs((long)(event->x-u_data->io->x_old))>10 || abs((long)(event->y-u_data->io->y_old))>10)
@@ -929,24 +1412,36 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                u_data->io->rect_x_max = (gint)ceil(MAX(u_data->io->x_old,event->x));
                u_data->io->rect_y_min = (gint)floor(MIN(u_data->io->y_old,event->y));
                u_data->io->rect_y_max = (gint)ceil(MAX(u_data->io->y_old,event->y))+POINT_SIZE;
-               gdk_draw_rectangle(u_data->io->pixmap,u_data->io->draw_area->style->black_gc,
-                                  FALSE,
-                                  u_data->io->rect_x_min, u_data->io->rect_y_min,
-                                  u_data->io->rect_x_max - u_data->io->rect_x_min,
-                                  u_data->io->rect_y_max - u_data->io->rect_y_min);
+#if GTK_CHECK_VERSION(2,22,0)
+               cr = cairo_create (u_data->io->surface);
+#else
+               cr = gdk_cairo_create (u_data->io->pixmap);
+#endif 
+               cairo_rectangle (cr, 
+                       u_data->io->rect_x_min+0.5, 
+                       u_data->io->rect_y_min+0.5, 
+                       u_data->io->rect_x_max - u_data->io->rect_x_min, 
+                       u_data->io->rect_y_max - u_data->io->rect_y_min);
+               cairo_set_line_width (cr, 1.0);
+               cairo_stroke (cr);
+               cairo_destroy (cr);
+
                ios=(sctp_graph_t *)g_object_get_data(G_OBJECT(u_data->io->draw_area), "sctp_graph_t");
 
-               if(!ios){
-                       exit(10);
-               }
+               g_assert(ios != NULL);
 
-               gdk_draw_pixmap(u_data->io->draw_area->window,
-                               u_data->io->draw_area->style->fg_gc[GTK_WIDGET_STATE(u_data->io->draw_area)],
-                               ios->pixmap,
-                               0, 0,
-                               0, 0,
-                               u_data->io->draw_area->allocation.width,
-                               u_data->io->draw_area->allocation.height);
+               cr = gdk_cairo_create (gtk_widget_get_window(u_data->io->draw_area));
+
+#if GTK_CHECK_VERSION(2,22,0)
+               cairo_set_source_surface (cr, ios->surface, 0, 0); 
+#else
+               gdk_cairo_set_source_pixmap (cr, ios->pixmap, 0, 0);
+#endif
+               gtk_widget_get_allocation(u_data->io->draw_area, &widget_alloc);
+               cairo_rectangle (cr, 0, 0, widget_alloc.width, widget_alloc.height);
+               cairo_fill (cr);
+
+               cairo_destroy (cr);
 
                x1_tmp=(unsigned int)floor(u_data->io->min_x+((u_data->io->x_old-LEFT_BORDER-u_data->io->offset)*u_data->io->tmp_width/u_data->io->axis_width));
                x2_tmp=(unsigned int)floor(u_data->io->min_x+((event->x-LEFT_BORDER-u_data->io->offset)*u_data->io->tmp_width/u_data->io->axis_width));
@@ -958,14 +1453,14 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                }
                if (u_data->io->uoff)
                {
-                       if (x2_tmp - x1_tmp <= 1500)                    
+                       if (x2_tmp - x1_tmp <= 1500)
                                u_data->io->uoff = FALSE;
                        u_data->io->x1_tmp_sec=(guint32)x1_tmp;
                        u_data->io->x1_tmp_usec=0;
                        u_data->io->x2_tmp_sec=(guint32)x2_tmp;
                        u_data->io->x2_tmp_usec=0;
                }
-               else 
+               else
                {
                        u_data->io->x1_tmp_sec=(guint32)x1_tmp/1000000;
                        u_data->io->x1_tmp_usec=x1_tmp%1000000;
@@ -977,8 +1472,8 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                u_data->io->x2_akt_sec = u_data->io->x2_tmp_sec;
                u_data->io->x2_akt_usec = u_data->io->x2_tmp_usec;
 
-               u_data->io->y1_tmp=(guint32)((u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-u_data->io->y_old)/u_data->io->y_interval);
-               u_data->io->y2_tmp=(guint32)((u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-event->y)/u_data->io->y_interval);
+               u_data->io->y1_tmp=(guint32)((u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset-u_data->io->y_old)/u_data->io->y_interval);
+               u_data->io->y2_tmp=(guint32)((u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset-event->y)/u_data->io->y_interval);
                helpy = MIN(u_data->io->y1_tmp, u_data->io->y2_tmp);
                u_data->io->y2_tmp = MAX(u_data->io->y1_tmp, u_data->io->y2_tmp);
                u_data->io->y1_tmp = helpy;
@@ -992,9 +1487,9 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                if (u_data->io->rectangle_present==TRUE)
                {
                        u_data->io->rectangle_present=FALSE;
-                       if (event->x >= u_data->io->rect_x_min && event->x <= u_data->io->rect_x_max && 
+                       if (event->x >= u_data->io->rect_x_min && event->x <= u_data->io->rect_x_max &&
                             event->y >= u_data->io->rect_y_min && event->y <= u_data->io->rect_y_max)
-                               zoomin_bt(u_data);
+                               zoomin_bt_fcn(u_data);
                        else
                        {
                                u_data->io->x1_tmp_sec = u_data->io->x1_akt_sec;
@@ -1011,9 +1506,8 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                }
                else
                {
-                       x_value = ((event->x-LEFT_BORDER-u_data->io->offset) * ((u_data->io->x2_tmp_sec+u_data->io->x2_tmp_usec/1000000.0)-(u_data->io->x1_tmp_sec+u_data->io->x1_tmp_usec/1000000.0)) / (u_data->io->pixmap_width-LEFT_BORDER-RIGHT_BORDER-u_data->io->offset))+u_data->io->x1_tmp_sec+u_data->io->x1_tmp_usec/1000000.0;
-                       y_value = (gint)rint((u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset-event->y) * (max_tsn - min_tsn) / (u_data->io->pixmap_height-BOTTOM_BORDER-u_data->io->offset)) + min_tsn;
-                       text_color = u_data->io->draw_area->style->black_gc;
+                       x_value = ((event->x-LEFT_BORDER-u_data->io->offset) * ((u_data->io->x2_tmp_sec+u_data->io->x2_tmp_usec/1000000.0)-(u_data->io->x1_tmp_sec+u_data->io->x1_tmp_usec/1000000.0)) / (u_data->io->surface_width-LEFT_BORDER-RIGHT_BORDER-u_data->io->offset))+u_data->io->x1_tmp_sec+u_data->io->x1_tmp_usec/1000000.0;
+                       y_value = (gint)rint((u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset-event->y) * (max_tsn - min_tsn) / (u_data->io->surface_height-BOTTOM_BORDER-u_data->io->offset)) + min_tsn;
 
                        if (u_data->dir == 1)
                        {
@@ -1030,7 +1524,7 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                                s_size = u_data->assoc->n_sack_chunks_ep2;
                        }
                        x_tolerance = (gdouble)((u_data->io->tmp_width / u_data->io->axis_width*1.0))*5/1000000.0;
-                       y_tolerance = (guint32)(((u_data->io->max_y - u_data->io->min_y) / (u_data->io->pixmap_height-TOP_BORDER-BOTTOM_BORDER-u_data->io->offset)) * 2.0);
+                       y_tolerance = (guint32)(((u_data->io->max_y - u_data->io->min_y) / (u_data->io->surface_height-TOP_BORDER-BOTTOM_BORDER-u_data->io->offset)) * 2.0);
                        if (y_tolerance==0)
                                y_tolerance = 2;
                        else if (y_tolerance > 5)
@@ -1070,13 +1564,41 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                                }
                        }
 
-                       g_snprintf(label_string, 30, "(%.6lf, %u)", x_value, y_value);
+                       g_snprintf(label_string, sizeof(label_string), "(%.6lf, %u)", x_value, y_value);
 
                        label_set = TRUE;
 
-                       gdk_draw_line(u_data->io->pixmap,text_color, (gint)(event->x-2), (gint)(event->y), (gint)(event->x+2), (gint)(event->y));
-                       gdk_draw_line(u_data->io->pixmap,text_color, (gint)(event->x), (gint)(event->y-2), (gint)(event->x), (gint)(event->y+2));
-                       if (event->x+150>=u_data->io->pixmap_width)
+#if GTK_CHECK_VERSION(2,22,0)
+                       cr = cairo_create (u_data->io->surface);
+#else
+                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif 
+                       cairo_set_line_width (cr, 1.0);
+                       cairo_move_to(cr, 
+                               (event->x-2)+0.5, 
+                               (event->y)+0.5);
+                       cairo_line_to(cr, 
+                               (event->x+2)+0.5, 
+                               (event->y)+0.5);
+                       cairo_stroke(cr);
+                       cairo_destroy(cr);
+
+#if GTK_CHECK_VERSION(2,22,0)
+                       cr = cairo_create (u_data->io->surface);
+#else
+                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif 
+                       cairo_set_line_width (cr, 1.0);
+                       cairo_move_to(cr, 
+                               (event->x)+0.5, 
+                               (event->y-2)+0.5);
+                       cairo_line_to(cr, 
+                               (event->x)+0.5, 
+                               (event->y+2)+0.5);
+                       cairo_stroke(cr);
+                       cairo_destroy(cr);
+
+                       if (event->x+150>=u_data->io->surface_width)
                                position = event->x - 150;
                        else
                                position = event->x + 5;
@@ -1086,41 +1608,52 @@ on_button_release (GtkWidget *widget _U_, GdkEventButton *event, struct sctp_uda
                        pango_layout_set_text(layout, label_string, -1);
                        pango_layout_get_pixel_size(layout, &lwidth, NULL);
 
-                       gdk_draw_layout(u_data->io->pixmap,text_color,
-                                       (gint)position,
-                                       (gint)(event->y-10),
-                                       layout);
+#if GTK_CHECK_VERSION(2,22,0)
+                       cr = cairo_create (u_data->io->surface);
+#else
+                       cr = gdk_cairo_create (u_data->io->pixmap);
+#endif 
+                       cairo_move_to (cr, 
+                               position,
+                               event->y-10);
+                       pango_cairo_show_layout (cr, layout);
+                       cairo_destroy (cr);
+                       cr = NULL;
 
                        ios=(sctp_graph_t *)g_object_get_data(G_OBJECT(u_data->io->draw_area), "sctp_graph_t");
+                       g_assert(ios != NULL);
 
-                       if(!ios){
-                               exit(10);
-                       }
-                       gdk_draw_pixmap(u_data->io->draw_area->window,
-                                       u_data->io->draw_area->style->fg_gc[GTK_WIDGET_STATE(u_data->io->draw_area)],
-                                       ios->pixmap,
-                                       0, 0,
-                                       0, 0,
-                                       u_data->io->draw_area->allocation.width,
-                                       u_data->io->draw_area->allocation.height);
+                       cr = gdk_cairo_create (gtk_widget_get_window(u_data->io->draw_area));
+
+#if GTK_CHECK_VERSION(2,22,0)
+                       cairo_set_source_surface (cr, ios->surface, 0, 0); 
+#else
+                       gdk_cairo_set_source_pixmap (cr, ios->pixmap, 0, 0);
+#endif
+                       gtk_widget_get_allocation(u_data->io->draw_area, &widget_alloc);
+                       cairo_rectangle (cr, 0, 0, widget_alloc.width, widget_alloc.height);
+                       cairo_fill (cr);
+
+                       cairo_destroy (cr);
                }
        }
+
+       g_object_unref(G_OBJECT(layout));
+
        return TRUE;
 }
 
 
-static void init_sctp_graph_window(struct sctp_udata *u_data)
+static void
+init_sctp_graph_window(struct sctp_udata *u_data)
 {
        GtkWidget *vbox;
        GtkWidget *hbox;
-       GtkWidget *bt_close, *sack_bt, *tsn_bt, *both_bt, *zoomin_bt;
-       GtkTooltips *tooltip_in, *tooltip_out;
+       GtkWidget *bt_close, *tsn_bt, *both_bt, *zoomin_bt;
 
        /* create the main window */
-
-       u_data->io->window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
-
-       gtk_widget_set_name(u_data->io->window, "SCTP Graphics");
+       u_data->io->window= dlg_window_new("WSCTP Graphics");  /* transient_for top_level */
+       gtk_window_set_destroy_with_parent (GTK_WINDOW(u_data->io->window), TRUE);
 
        vbox=gtk_vbox_new(FALSE, 0);
        gtk_container_add(GTK_CONTAINER(u_data->io->window), vbox);
@@ -1134,17 +1667,15 @@ static void init_sctp_graph_window(struct sctp_udata *u_data)
        gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
        gtk_container_set_border_width(GTK_CONTAINER(hbox), 10);
        gtk_button_box_set_layout(GTK_BUTTON_BOX (hbox), GTK_BUTTONBOX_SPREAD);
-       gtk_button_box_set_spacing(GTK_BUTTON_BOX (hbox), 0);
+       gtk_box_set_spacing(GTK_BOX (hbox), 0);
        gtk_box_set_child_packing(GTK_BOX(vbox), hbox, FALSE, FALSE, 0, GTK_PACK_START);
        gtk_widget_show(hbox);
-
-       sack_bt = gtk_button_new_with_label ("Show Sacks");
+       sack_bt = gtk_button_new_with_label ("Show Only Sacks");
        gtk_box_pack_start(GTK_BOX(hbox), sack_bt, FALSE, FALSE, 0);
        gtk_widget_show(sack_bt);
-
        g_signal_connect(sack_bt, "clicked", G_CALLBACK(on_sack_bt), u_data);
 
-       tsn_bt = gtk_button_new_with_label ("Show TSNs");
+       tsn_bt = gtk_button_new_with_label ("Show Only TSNs");
        gtk_box_pack_start(GTK_BOX(hbox), tsn_bt, FALSE, FALSE, 0);
        gtk_widget_show(tsn_bt);
        g_signal_connect(tsn_bt, "clicked", G_CALLBACK(on_tsn_bt), u_data);
@@ -1158,15 +1689,13 @@ static void init_sctp_graph_window(struct sctp_udata *u_data)
        gtk_box_pack_start(GTK_BOX(hbox), zoomin_bt, FALSE, FALSE, 0);
        gtk_widget_show(zoomin_bt);
        g_signal_connect(zoomin_bt, "clicked", G_CALLBACK(on_zoomin_bt), u_data);
-       tooltip_in = gtk_tooltips_new();
-       gtk_tooltips_set_tip(tooltip_in, zoomin_bt, "Zoom in the area you have selected", NULL);
+       gtk_widget_set_tooltip_text(zoomin_bt, "Zoom in the area you have selected");
 
        zoomout_bt = gtk_button_new_with_label ("Zoom out");
        gtk_box_pack_start(GTK_BOX(hbox), zoomout_bt, FALSE, FALSE, 0);
        gtk_widget_show(zoomout_bt);
        g_signal_connect(zoomout_bt, "clicked", G_CALLBACK(on_zoomout_bt), u_data);
-       tooltip_out = gtk_tooltips_new();
-       gtk_tooltips_set_tip(tooltip_out, zoomout_bt, "Zoom out one step", NULL);
+       gtk_widget_set_tooltip_text(zoomout_bt, "Zoom out one step");
        gtk_widget_set_sensitive(zoomout_bt, FALSE);
 
        bt_close = gtk_button_new_from_stock(GTK_STOCK_CLOSE);
@@ -1174,14 +1703,15 @@ static void init_sctp_graph_window(struct sctp_udata *u_data)
        gtk_widget_show(bt_close);
        g_signal_connect(bt_close, "clicked", G_CALLBACK(sctp_graph_close_cb), u_data);
 
-       g_signal_connect(u_data->io->draw_area,"button_press_event",G_CALLBACK(on_button_press), u_data);
-       g_signal_connect(u_data->io->draw_area,"button_release_event",G_CALLBACK(on_button_release), u_data);
+       g_signal_connect(u_data->io->draw_area,"button_press_event",G_CALLBACK(on_button_press_event), u_data);
+       g_signal_connect(u_data->io->draw_area,"button_release_event",G_CALLBACK(on_button_release_event), u_data);
        gtk_widget_set_events(u_data->io->draw_area, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_EXPOSURE_MASK);
 
        gtk_widget_show(u_data->io->window);
 }
 
-static void sctp_graph_set_title(struct sctp_udata *u_data)
+static void
+sctp_graph_set_title(struct sctp_udata *u_data)
 {
        char *title;
 
@@ -1199,7 +1729,6 @@ static void
 gtk_sctpgraph_init(struct sctp_udata *u_data)
 {
        sctp_graph_t *io;
-       gint dir;
        sctp_min_max_t* tmp_minmax;
 
        io=g_malloc(sizeof(sctp_graph_t));
@@ -1207,11 +1736,14 @@ gtk_sctpgraph_init(struct sctp_udata *u_data)
        io->x_interval=1000;
        io->window=NULL;
        io->draw_area=NULL;
+#if GTK_CHECK_VERSION(2,22,0)
+       io->surface=NULL;
+#else
        io->pixmap=NULL;
-       io->pixmap_width=800;
-       io->pixmap_height=600;
+#endif
+       io->surface_width=800;
+       io->surface_height=600;
        io->graph_type=0;
-       dir=u_data->dir-1;
        u_data->io=io;
        u_data->io->x1_tmp_sec=u_data->assoc->min_secs;
        u_data->io->x1_tmp_usec=u_data->assoc->min_usecs;
@@ -1241,10 +1773,10 @@ gtk_sctpgraph_init(struct sctp_udata *u_data)
 }
 
 
-static gint
-quit(GtkObject *object _U_, gpointer user_data)
+static void
+quit(GObject *object _U_, gpointer user_data)
 {
-       struct sctp_udata *u_data=(struct sctp_udata*)user_data;
+       struct sctp_udata *u_data=user_data;
 
        decrease_childcount(u_data->parent);
        remove_child(u_data, u_data->parent);
@@ -1253,18 +1785,18 @@ quit(GtkObject *object _U_, gpointer user_data)
 
        u_data->assoc->min_max = NULL;
        g_free(u_data);
-       return TRUE;
 }
 
 
-static void create_draw_area(GtkWidget *box, struct sctp_udata *u_data)
+static void
+create_draw_area(GtkWidget *box, struct sctp_udata *u_data)
 {
 
        u_data->io->draw_area=gtk_drawing_area_new();
        g_signal_connect(u_data->io->draw_area, "destroy", G_CALLBACK(quit), u_data);
        g_object_set_data(G_OBJECT(u_data->io->draw_area), "sctp_graph_t", u_data->io);
 
-       gtk_widget_set_size_request(u_data->io->draw_area, u_data->io->pixmap_width, u_data->io->pixmap_height);
+       gtk_widget_set_size_request(u_data->io->draw_area, u_data->io->surface_width, u_data->io->surface_height);
 
        /* signals needed to handle backing pixmap */
        g_signal_connect(u_data->io->draw_area, "expose_event", G_CALLBACK(expose_event), NULL);
@@ -1276,12 +1808,12 @@ static void create_draw_area(GtkWidget *box, struct sctp_udata *u_data)
 
 
 
-void create_graph(guint16 dir, struct sctp_analyse* userdata)
+void
+create_graph(guint16 dir, struct sctp_analyse* userdata)
 {
        struct sctp_udata *u_data;
 
        u_data=g_malloc(sizeof(struct sctp_udata));
-       u_data->assoc=g_malloc(sizeof(sctp_assoc_info_t));
        u_data->assoc=userdata->assoc;
        u_data->io=NULL;
        u_data->dir = dir;
@@ -1298,7 +1830,8 @@ void create_graph(guint16 dir, struct sctp_analyse* userdata)
 
 #if defined(_WIN32) && !defined(__MINGW32__)
 /* replacement of Unix rint() for Windows */
-static int rint (double x)
+static int
+rint (double x)
 {
        char *buf;
        int i,dec,sig;