Reorganize source tree to use single autotools instance

Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 3077 insertions, 0 deletions

diff --git a/src/tools/g2/view1.c b/src/tools/g2/view1.c
new file mode 100644
index 00000000000..ec394cc3d53
--- /dev/null
+++ b/src/tools/g2/view1.c
@@ -0,0 +1,3077 @@
+/* 
+ *------------------------------------------------------------------
+ * Copyright (c) 2005-2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+#include "g2.h"
+#include <time.h>
+#include <string.h>
+#include <vppinfra/format.h>
+#include <vppinfra/elog.h>
+
+/*
+ * The main event display view.
+ * 
+ * Important variables:
+ *
+ * "da" -- the drawing area, aka the screen representation of the
+ *         event view.
+ *
+ * "pm" -- the backing pixmap for the drawing area. Note that
+ *         all graphics operations target this backing
+ *         store, then call gtk_widget_draw to copy a rectangle from
+ *         the backing store onto the screen.
+ *
+ * "s_v1" -- pointer to the current v1_geometry_t object.
+ * 
+ * Box heirarchy:
+ * s_view1_vbox
+ *     s_view1_hbox
+ *         da  s_view1_vmenubox
+ *                  s_view1_topbutton("Top")
+ *                  s_view1_vscroll (vertical scrollbar)
+ *                  s_view1_bottombutton("Bottom")
+ *     s_view1_hmenubox
+ *         s_view1_startbutton("Start");
+ *         s_view1_hscroll(horizontal scrollbar)
+ *         s_view1_endbutton("End")
+ *         s_view1_zoominbutton("Zoomin")
+ *         s_view1_searchbutton("Search")
+ *         s_view1_searchagainbutton("Search Again")
+ *         s_view1_zoomoutbutton("Zoomout")
+ *     s_view1_label
+ */
+
+/*
+ * Globals
+ */
+
+GdkFont *g_font;                /* a fixed-width font to use */
+GdkColor fg_black = {0, 0, 0, 0};
+GdkColor bg_white = {0, 65535, 65535, 65535};
+static boolean summary_mode = TRUE; /* start out in summary mode */
+static boolean color_mode   = FALSE; /* start out in color mode   */
+
+/*
+ * Locals
+ */
+
+/* 
+ * user_data values passed to view1_button_click_callback,
+ * which is used by the various action buttons noted above
+ */
+enum view1_button_click {
+    TOP_BUTTON=1,
+    BOTTOM_BUTTON,
+    START_BUTTON,
+    ZOOMIN_BUTTON,
+    SEARCH_BUTTON,
+    SEARCH_AGAIN_BUTTON,
+    ZOOMOUT_BUTTON,
+    END_BUTTON,
+    MORE_TRACES_BUTTON,
+    LESS_TRACES_BUTTON,
+    SNAP_BUTTON,
+    NEXT_BUTTON,
+    DEL_BUTTON,
+    CHASE_EVENT_BUTTON,
+    CHASE_DATUM_BUTTON,
+    CHASE_TRACK_BUTTON,
+    UNCHASE_BUTTON,
+    FORWARD_BUTTON,
+    BACKWARD_BUTTON,
+    SUMMARY_BUTTON,
+    NOSUMMARY_BUTTON,
+};
+
+enum chase_mode {
+    CHASE_EVENT=1,
+    CHASE_DATUM,
+    CHASE_TRACK,
+};
+
+enum sc_dir {
+    SRCH_CHASE_FORWARD = 0,
+    SRCH_CHASE_BACKWARD = 1,
+};
+
+static GtkWidget *s_view1_hbox; /* see box heirarchy chart */
+static GtkWidget *s_view1_vbox; /* see box heirarchy chart */
+static GtkWidget *da;           /* main drawing area */
+static GdkPixmap *pm;           /* and its backing pixmap */
+static GdkCursor *norm_cursor;  /* the "normal" cursor */
+
+/*
+ * view geometry parameters
+ *
+ * Remember:
+ *    Y increases down the page.
+ *    Strip origin is at the top
+ *    Payday is Friday
+ *    Don't put your fingers in your mouth.
+ *
+ * Most of these values are in pixels
+ */
+
+typedef struct v1_geometry {
+    int pid_ax_width;           /* Width of the PID axis */
+    int time_ax_height;         /* Height of the time axis */
+    int time_ax_spacing;        /* TimeAxis: Space between tick-marks */
+    int strip_height;           /* Height of a regular PID trace */
+    int pop_offset;             /* Vertical offset of the detail box */
+    int pid_ax_offset;          /* Vertical offset of the PID axis */
+    int event_offset;           /* Vertical offset of the event boxes */
+    int total_height;           /* total height of da, see configure_event */
+    int total_width;            /* ditto, for width */
+    
+    /* Derived values */
+    int first_pid_index;        /* Index of first displayed PID */
+    int npids;                  /* Max number of displayed pids */
+    ulonglong minvistime;       /* in usec */
+    ulonglong maxvistime;       /* in usec */
+} v1_geometry_t;
+
+
+/* The active geometry object */
+static v1_geometry_t s_v1record; 
+static v1_geometry_t *s_v1 = &s_v1record; 
+
+/* The color array */
+static GdkColor *s_color;
+
+/* Snapshot ring */
+typedef struct snapshot {
+    struct snapshot *next;
+    /* Screen geometry */
+    v1_geometry_t geometry;
+    boolean show_event[NEVENTS];
+    pid_sort_t *pidvec;
+    /*
+     * Note: not worth recomputing the vertical scrollbar, just save
+     *  its value here
+     */
+    gfloat vscroll_value;
+    boolean summary_mode;
+    boolean color_mode;
+} snapshot_t;
+
+static snapshot_t *s_snapshots;
+static snapshot_t *s_cursnap;
+static event_t *s_last_selected_event;
+
+/*
+ * various widgets, see the box heirarchy chart above
+ * The toolkit keeps track of these things, we could lose many of 
+ * these pointers. 
+ */
+static GtkWidget *s_view1_vmenubox;
+static GtkWidget *s_view1_topbutton;
+static GtkWidget *s_view1_bottombutton;
+static GtkWidget *s_view1_more_traces_button;
+static GtkWidget *s_view1_less_traces_button;
+
+static GtkWidget *s_view1_hmenubox;
+static GtkWidget *s_view1_hmenubox2;
+static GtkWidget *s_view1_startbutton;
+static GtkWidget *s_view1_zoominbutton;
+static GtkWidget *s_view1_searchbutton;
+static GtkWidget *s_view1_srchagainbutton;
+static GtkWidget *s_view1_zoomoutbutton;
+static GtkWidget *s_view1_endbutton;
+
+static GtkWidget *s_view1_snapbutton;
+static GtkWidget *s_view1_nextbutton;
+static GtkWidget *s_view1_delbutton;
+
+static GtkWidget *s_view1_chase_event_button;
+static GtkWidget *s_view1_chase_datum_button;
+static GtkWidget *s_view1_chase_track_button;
+static GtkWidget *s_view1_unchasebutton;
+
+static GtkWidget *s_view1_forward_button;
+static GtkWidget *s_view1_backward_button;
+
+static GtkWidget *s_view1_summary_button;
+static GtkWidget *s_view1_nosummary_button;
+
+static GtkWidget *s_view1_hscroll;
+static GtkObject *s_view1_hsadj;
+
+static GtkWidget *s_view1_vscroll;
+static GtkObject *s_view1_vsadj;
+
+static GtkWidget *s_view1_label;
+
+/*
+ * Search context 
+ */
+static ulong s_srchcode;        /* search event code */
+static int s_srchindex;         /* last hit was at this event index */
+static boolean s_result_up;     /* The SEARCH RESULT dongle is displayed */
+static boolean s_srchfail_up;   /* The status line "Search Failed" is up */
+static int srch_chase_dir;      /* search/chase dir, 0=>forward */
+
+
+/*
+ * Print context 
+ */
+static int s_print_offset;      /* Magic offset added to line, tbox fn codes */
+static FILE *s_printfp;         
+
+/*
+ * Forward reference prototypes
+ */
+static void display_pid_axis(v1_geometry_t *vp);
+static void display_event_data(v1_geometry_t *vp);
+static void display_time_axis(v1_geometry_t *vp);
+static void view1_button_click_callback(GtkButton *item, gpointer data);
+
+/*
+ * config params
+ */
+
+gint c_view1_draw_width;
+gint c_view1_draw_height;
+
+/*
+ * Zoom-In / Time Ruler cursor
+ */
+
+#define zi_width 32
+#define zi_height 32
+#define zi_x_hot 22
+#define zi_y_hot 14
+static unsigned char zi_bits[] = {
+   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, 0x88, 0x00,
+   0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0xa0, 0x00, 0x00, 0x00, 0xc0, 0x00,
+   0x00, 0xfc, 0xff, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0xa0, 0x00,
+   0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0x84, 0x00,
+   0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+static unsigned char zi_bkgd[] = {
+   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x84, 0x00, 0x00, 0x00, 0x88, 0x00,
+   0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0xa0, 0x00, 0x00, 0x00, 0xc0, 0x00,
+   0x00, 0xfc, 0xff, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0xa0, 0x00,
+   0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0x84, 0x00,
+   0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00,
+   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+static GdkCursor *zi_cursor;
+static GdkPixmap *zi_source, *zi_mask;
+
+/* 
+ * Frequently-used small computations, best
+ * done correctly once and instantiated.
+ */
+
+/****************************************************************************
+* dtime_per_pixel
+****************************************************************************/
+
+static inline double dtime_per_pixel(v1_geometry_t *vp)
+{
+    return ((double)(vp->maxvistime - vp->minvistime)) /
+        ((double)(vp->total_width - vp->pid_ax_width));
+}
+
+/****************************************************************************
+* message_line
+* Changes the status line.  Pass "" to clear the status line.
+****************************************************************************/
+
+void message_line (char *s)
+{
+    gtk_label_set_text (GTK_LABEL(s_view1_label), s);
+}
+
+/****************************************************************************
+* set_window_title
+* Changes the window title to include the specified filename.
+****************************************************************************/
+
+void set_window_title (const char *filename)
+{
+    char title[128];
+    snprintf(title, sizeof(title), "g2 (%s)", filename);
+    gtk_window_set_title(GTK_WINDOW(g_mainwindow), title);
+}
+
+/****************************************************************************
+* recompute_hscrollbar
+* Adjust the horizontal scrollbar's adjustment object.
+* 
+* GtkAdjustments are really cool, but have to be set up exactly
+* right or the various client objects screw up completely.
+*
+* Note: this function is *not* called when the user clicks the scrollbar.
+****************************************************************************/
+
+static void recompute_hscrollbar (void)
+{
+    ulonglong current_width;
+    ulonglong event_incdec;
+    GtkAdjustment *adj;
+    event_t *ep;
+
+    if (g_nevents == 0)
+        return;
+
+    ep = (g_events + (g_nevents-1));
+    current_width = s_v1->maxvistime - s_v1->minvistime;
+    event_incdec = (current_width) / 6;
+
+    adj = GTK_ADJUSTMENT(s_view1_hsadj);
+
+    /* 
+     * Structure member decoder ring
+     * -----------------------------
+     * lower             the minimum possible value
+     * value             the current value
+     * upper             the maximum possible value
+     * step_increment    end button click increment
+     * page_increment    click in trough increment
+     * page_size         size of currently visible area
+     */
+
+    adj->lower = (gfloat)0.00;  
+    adj->value = (gfloat)s_v1->minvistime;
+
+    /* Minor click: move about 1/6 of a page */
+    adj->step_increment = (gfloat)event_incdec;
+
+    /* Major click: move about 1/3 of a page. */
+    adj->page_increment = (gfloat)(2*event_incdec);
+
+    /* allow the user to go a bit past the end */
+    adj->upper = adj->page_increment/3 + (gfloat)(ep->time);
+    adj->page_size = (gfloat)(current_width);
+
+    /*
+     * Tell all clients (e.g. the visible scrollbar) to 
+     * make themselves look right 
+     */
+    gtk_adjustment_changed(adj);
+    gtk_adjustment_value_changed(adj);
+}
+
+/****************************************************************************
+* recompute_vscrollbar
+* Ditto, for the vertical scrollbar
+****************************************************************************/
+
+static void recompute_vscrollbar (void)
+{
+    GtkAdjustment *adj;
+
+    adj = GTK_ADJUSTMENT(s_view1_vsadj);
+
+    adj->lower = (gfloat)0.00;
+    adj->upper = (gfloat)g_npids;
+    adj->value = (gfloat)0.00;
+    adj->step_increment = 1.00;
+    adj->page_increment = (gfloat)(s_v1->npids / 3);
+    adj->page_size = (gfloat)s_v1->npids;
+    gtk_adjustment_changed(adj);
+    gtk_adjustment_value_changed(adj);
+}
+
+/****************************************************************************
+* format_popbox_string
+****************************************************************************/
+
+elog_main_t elog_main;
+
+void format_popbox_string (char *tmpbuf, int len, event_t *ep, event_def_t *edp)
+{
+    char *fp;
+
+#ifdef NOTDEF
+    sprintf(tmpbuf,"%d:", ep->code);
+#endif
+    if (ep->flags & EVENT_FLAG_CLIB) {
+        elog_event_t *eep;
+        u8 *s;
+
+        eep = get_clib_event (ep->datum);
+        
+        s = format (0, "%U", format_elog_event, &elog_main, eep);
+        memcpy (tmpbuf, s, vec_len(s));
+        tmpbuf[vec_len(s)] = 0;
+        vec_free(s);
+        return;
+    }
+
+    snprintf(tmpbuf, len, "%s", edp->name);
+    fp = edp->format;
+    /* Make sure there's a real format string. If so, add it */
+    while (fp && *fp) {
+        if (*fp != ' ') {
+            snprintf(tmpbuf+strlen(tmpbuf), len - strlen(tmpbuf), ": ");
+            /* %s only supported for cpel files */
+            if (fp[1] == 's') {
+                snprintf(tmpbuf+strlen(tmpbuf), len - strlen(tmpbuf), 
+                         edp->format, strtab_ref(ep->datum));
+            } else {
+                snprintf(tmpbuf+strlen(tmpbuf), len - strlen(tmpbuf), 
+                        edp->format, ep->datum);
+            }
+            return;
+        }
+        fp++;
+    }
+}
+
+/****************************************************************************
+ * add_snapshot
+ ****************************************************************************/
+
+static void add_snapshot(void)
+{
+    int i;
+    snapshot_t *new = g_malloc(sizeof(snapshot_t));
+
+    memcpy(&new->geometry, s_v1, sizeof(new->geometry));
+    for (i = 0; i < NEVENTS; i++) {
+        new->show_event[i] = g_eventdefs[i].selected;
+    }
+    new->pidvec = g_malloc(sizeof(pid_sort_t)*g_npids);
+    memcpy(new->pidvec, g_pids, sizeof(pid_sort_t)*g_npids);
+    new->vscroll_value =  GTK_ADJUSTMENT(s_view1_vsadj)->value;
+    new->summary_mode = summary_mode;
+    new->color_mode = color_mode;
+
+    if (s_snapshots) {
+        new->next = s_snapshots;
+        s_snapshots = new;
+    } else {
+        new->next = 0;
+        s_snapshots = new;
+    }
+    s_cursnap = new;
+}
+
+/****************************************************************************
+ * next_snapshot
+ ****************************************************************************/
+
+static void next_snapshot(void)
+{
+    snapshot_t *next;
+    int i;
+    pid_sort_t *psp;
+    pid_data_t *pp;
+
+    if (!s_snapshots) {
+        infobox("No snapshots", "\nNo snapshots in the ring...\n");        
+        return;
+    }
+    
+    next = s_cursnap->next;
+    if (next == 0)
+        next = s_snapshots;
+
+    s_cursnap = next;
+
+    memcpy(s_v1, &next->geometry, sizeof(next->geometry));
+    for (i = 0; i < NEVENTS; i++) {
+        g_eventdefs[i].selected = next->show_event[i];
+    }
+    memcpy(g_pids, next->pidvec, sizeof(pid_sort_t)*g_npids);
+    color_mode = next->color_mode;
+    /*
+     * Update summary mode via a button push so that the button state is
+     * updated accordingly. (Should ideally clean up the view/controller
+     * separation properly one day.)
+     */
+    if (summary_mode != next->summary_mode) {
+        view1_button_click_callback
+            (NULL, (gpointer)(unsigned long long)
+             (summary_mode ? NOSUMMARY_BUTTON : SUMMARY_BUTTON));
+    }
+
+    /* Fix the pid structure index mappings */
+    psp = g_pids;
+
+    for (i = 0; i < g_npids; i++) {
+        pp = psp->pid;
+        pp->pid_index = i;
+        psp++;
+    }
+    GTK_ADJUSTMENT(s_view1_vsadj)->value = next->vscroll_value;
+    gtk_adjustment_value_changed(GTK_ADJUSTMENT(s_view1_vsadj));
+    recompute_hscrollbar();
+    pointsel_next_snapshot();
+    view1_display_when_idle();
+}
+
+
+/****************************************************************************
+ * del_snapshot
+ ****************************************************************************/
+
+static void del_snapshot(void)
+{
+    snapshot_t *prev;
+    snapshot_t *this;
+
+    if (!s_snapshots) {
+        infobox("No snapshots", "\nNo snapshots to delete...\n");        
+        return;
+    }
+
+    prev = NULL;
+    this = s_snapshots;
+
+    while (this && this != s_cursnap) {
+        prev = this;
+        this = this->next;
+    }
+
+    if (this != s_cursnap) {
+        infobox("BUG", "\nSnapshot AWOL!\n");        
+        return;
+    }
+ 
+    s_cursnap = this->next;
+
+    /* middle of the list? */
+    if (prev) {
+        prev->next = this->next;
+        g_free(this->pidvec);
+        g_free(this);
+    } else { /* start of the list */
+        s_snapshots = this->next;
+        g_free(this->pidvec);
+        g_free(this);
+    }
+    
+    /* Note: both will be NULL after last delete */
+    if (s_cursnap == NULL)
+        s_cursnap = s_snapshots;
+}
+
+/****************************************************************************
+ * write_snapshot
+ *
+ * VERY primitive right now - not endian or version independent, and only
+ * writes to "snapshots.g2" in the current directory
+ ****************************************************************************/
+static void write_snapshot(void)
+{
+    FILE *file = NULL;
+    snapshot_t *snap;
+    char *error = NULL;
+    int records = 0;
+    
+    if (s_snapshots == NULL) {
+        error = "No snapshots defined";
+        errno = 0;
+    }
+
+    if (!error) {
+        file = fopen("snapshots.g2", "w");
+        if (file == NULL) {
+            error = "Unable to open snapshots.g2";
+        }
+    }
+
+    /*
+     * Simply serialize the arch-dependent binary data, without a care in the
+     * world. Don't come running to me if you try to read it and crash.
+     */
+    for (snap = s_snapshots; !error && snap != NULL; snap = snap->next) {
+        if (fwrite(&snap->geometry, 
+                   sizeof(snap->geometry), 1, file) != 1 ||
+            fwrite(&snap->show_event, 
+                   sizeof(snap->show_event), 1, file) != 1 ||
+            fwrite(snap->pidvec, 
+                   sizeof(pid_sort_t) * g_npids, 1, file) != 1 ||
+            fwrite(&snap->vscroll_value, 
+                   sizeof(snap->vscroll_value), 1, file) != 1 ||
+            fwrite(&snap->summary_mode,  
+                   sizeof(snap->summary_mode),   1, file) != 1 ||
+            fwrite(&snap->color_mode,  
+                   sizeof(snap->color_mode),   1, file) != 1) {
+            error = "Error writing data";
+        }
+        records++;
+    }
+
+    if (!error) {
+        if (fclose(file)) {
+            error = "Unable to close file";
+        }
+    }
+
+    if (error) {
+        infobox(error, strerror(errno));
+    } else {
+        char buf[64];
+        snprintf(buf, sizeof(buf), "Wrote %d snapshots to snapshots.g2", 
+                 records);
+        message_line(buf);
+    }
+}
+
+/****************************************************************************
+ * read_snapshot
+ *
+ * VERY primitive right now - not endian or version independent, and only reads
+ * from "snapshots.g2" in the current directory
+ ****************************************************************************/
+static void read_snapshot(void)
+{
+    FILE *file;
+    snapshot_t *snap, *next_snap;
+    snapshot_t *new_snaps = NULL;
+    char *error = NULL;
+    int len, i, records = 0;
+    pid_data_t *pp;
+
+    file = fopen("snapshots.g2", "r");
+    if (file == NULL) {
+        error = "Unable to open snapshots.g2";
+    }
+
+    /*
+     * Read in the snapshots and link them together. We insert them backwards,
+     * but that's tolerable. If the data is in anyway not what we expect, we'll
+     * probably crash. Sorry.
+     */
+    while (!error && !feof(file)) {
+        snap = g_malloc(sizeof(*snap));
+        snap->pidvec = NULL; /* so we can free this if there's an error */
+
+        len = fread(&snap->geometry, sizeof(snap->geometry), 1, file);
+        if (len == 0) {
+            /* EOF */
+            g_free(snap);
+            break;
+        } else {
+            /* insert into list straight away */
+            snap->next = new_snaps;
+            new_snaps = snap;
+        }
+        if (len != 1) {
+            error = "Problem reading first item from file";
+            break;
+        }
+        if (fread(&snap->show_event, sizeof(snap->show_event), 1, file) != 1) {
+            error = "Problem reading second item from file";
+            break;
+        }
+        len = sizeof(pid_sort_t) * g_npids;
+        snap->pidvec = g_malloc(len);
+        if (fread(snap->pidvec, len, 1, file) != 1) {
+            error = "Problem reading third item from file";
+            break;
+        }
+        if (fread(&snap->vscroll_value, 
+                  sizeof(snap->vscroll_value), 1, file) != 1 ||
+            fread(&snap->summary_mode,  
+                  sizeof(snap->summary_mode),  1, file) != 1 ||
+            fread(&snap->color_mode,  
+                  sizeof(snap->color_mode),  1, file) != 1) {
+            error = "Problem reading final items from file";
+            break;
+        }
+
+        /*
+         * Fix up the pointers from the sorted pid vector back into our pid
+         * data objects, by walking the linked list of pid_data_t objects for
+         * every one looking for a match. This is O(n^2) grossness, but in real
+         * life there aren't that many pids, and it seems zippy enough.
+         */
+        for (i = 0; i < g_npids; i++) {
+            for (pp = g_pid_data_list; pp != NULL; pp = pp->next) {
+                if (pp->pid_value == snap->pidvec[i].pid_value) {
+                    break;
+                }
+            }
+            if (pp != NULL) {
+                snap->pidvec[i].pid = pp;
+            } else {
+                error = "Snapshot file referenced unknown pids";
+                break;
+            }
+        }
+
+        records++;
+    }
+
+    if (!error) {
+        if (fclose(file)) {
+            error = "Unable to close file";
+        }
+    }
+        
+    if (error) {
+        /*
+         * Problem - clear up any detritus
+         */
+        infobox(error, strerror(errno));
+        for (snap = new_snaps; snap != NULL; snap = next_snap) {
+            next_snap = snap->next;
+            g_free(snap);
+            g_free(snap->pidvec);
+        }
+    } else {
+        /*
+         * Success! trash the old snapshots and replace with the new
+         */
+        for (snap = s_snapshots; snap != NULL; snap = next_snap) {
+            next_snap = snap->next;
+            g_free(snap->pidvec);
+            g_free(snap);
+        }
+        
+        s_cursnap = s_snapshots = new_snaps;
+    }
+
+    if (error) {
+        infobox(error, strerror(errno));
+    } else {
+        char buf[64];
+        snprintf(buf, sizeof(buf), 
+                 "Read %d snapshots from snapshots.g2", records);
+        message_line(buf);
+    }
+}
+
+/****************************************************************************
+* set_color
+*
+* Set the color for the specified pid_index, or COLOR_DEFAULT to return it
+* to the usual black.
+****************************************************************************/
+#define COLOR_DEFAULT (-1)
+static void set_color(int pid_index)
+{
+    if (pid_index == COLOR_DEFAULT || !color_mode) {
+        gdk_gc_set_foreground(da->style->black_gc, &fg_black);
+    } else {
+        gdk_gc_set_foreground(da->style->black_gc, 
+                              &s_color[g_pids[pid_index].color_index]);
+    }
+}
+
+/****************************************************************************
+* toggle_event_select
+****************************************************************************/
+
+static void toggle_event_select(GdkEventButton *event, v1_geometry_t *vp)
+{
+    int pid_index, start_index;
+    int x, y;
+    GdkRectangle *rp;
+    GdkRectangle hit_rect;
+    GdkRectangle dummy;
+    event_t *ep;
+    event_def_t *edp;
+    char tmpbuf [1024];
+    double time_per_pixel;
+
+    if (g_nevents == 0)
+        return;
+
+    time_per_pixel = dtime_per_pixel(vp);
+
+    start_index = find_event_index (vp->minvistime);
+
+    /* Too far right? */
+    if (start_index >= g_nevents)
+        return;
+    
+    /* 
+     * To see if the mouse hit a visible event, use a variant
+     * of the event display loop.
+     */
+
+    hit_rect.x = (int)event->x;
+    hit_rect.y = (int)event->y;
+    hit_rect.width = 1;
+    hit_rect.height = 1;
+    
+    ep = (g_events + start_index);
+    
+    while ((ep->time < vp->maxvistime) && 
+           (ep < (g_events + g_nevents))) {
+        pid_index = ep->pid->pid_index;
+        
+        /* First filter: pid out of range */
+        if ((pid_index < vp->first_pid_index) ||
+            (pid_index >= vp->first_pid_index + vp->npids)) {
+            ep++;
+            continue;
+        }
+
+        /* Second filter: event hidden */
+        edp = find_event_definition (ep->code);
+        if (!edp->selected) {
+            ep++;
+            continue;
+        }
+        
+        /* 
+         * At this point, we know that the point is at least on the
+         * screen. See if the mouse hit within the bounding box 
+         */
+
+        /* 
+         * $$$$ maybe keep looping until off the edge,
+         * maintain a "best hit", then declare that one the winner?
+         */
+
+        pid_index -= vp->first_pid_index;
+        
+        y = pid_index*vp->strip_height + vp->event_offset;
+        
+        x = vp->pid_ax_width + 
+            (int)(((double)(ep->time - vp->minvistime)) / time_per_pixel);
+
+        /* Perhaps we're trying to toggle the detail box? */
+        if (ep->flags & EVENT_FLAG_SELECT) {
+            /* Figure out the dimensions of the detail box */
+            format_popbox_string(tmpbuf, sizeof(tmpbuf), ep, edp);
+            rp = tbox(tmpbuf, x, y - vp->pop_offset, TBOX_GETRECT_BOXED);
+            if (gdk_rectangle_intersect(rp, &hit_rect, &dummy)) {
+                ep->flags &= ~EVENT_FLAG_SELECT;
+                view1_display_when_idle();
+                break;
+            }
+        } 
+
+        sprintf(tmpbuf, "%ld", ep->code);
+
+        /* Figure out the dimensions of the regular box */
+        rp = tbox(tmpbuf, x, y, TBOX_GETRECT_EVENT);
+
+        if (gdk_rectangle_intersect(rp, &hit_rect, &dummy)) {
+            /* we hit the rectangle. */
+            if (ep->flags & EVENT_FLAG_SELECT) {
+                ep->flags &= ~EVENT_FLAG_SELECT;
+                view1_display_when_idle();
+                break;
+            } else {
+                set_color(ep->pid->pid_index);
+
+                /* It wasn't selected, so put up the detail box */
+                format_popbox_string(tmpbuf, sizeof(tmpbuf), ep, edp);
+                tbox(tmpbuf, x, y - vp->pop_offset, TBOX_DRAW_BOXED);
+                line(x, y-vp->pop_offset, x, y, LINE_DRAW_BLACK);
+                ep->flags |= EVENT_FLAG_SELECT;
+                ep->flags &= ~EVENT_FLAG_SEARCHRSLT;
+                s_last_selected_event = ep;
+            }
+            break;
+        }
+        ep++;
+    }
+}
+
+/****************************************************************************
+* move_current_track
+****************************************************************************/
+
+typedef enum { MOVE_TOP, MOVE_BOTTOM } move_type;
+
+static void move_current_track(GdkEventButton *event, 
+                               v1_geometry_t  *vp,
+                               move_type       type)
+{
+    int i;
+    int pid_index;
+    int y, delta_y;
+    pid_sort_t *new_pidvec;
+    pid_sort_t *psp;
+    pid_sort_t *pold, *pnew;
+    pid_data_t *pp;
+
+    if (g_nevents == 0)
+        return;
+
+    /* Scan pid/track axis locations, looking for a match */
+    for (i = 0; i < vp->npids; i++) {
+        y = i*vp->strip_height + vp->pid_ax_offset;
+        delta_y = y - event->y;
+        if (delta_y < 0)
+            delta_y = -delta_y;
+        if (delta_y < 10) {
+            goto found;
+        }
+
+    }
+    infobox("NOTE", "\nNo PID/Track In Range\nPlease Try Again");
+    return;
+    
+ found:
+    pid_index = i + vp->first_pid_index;
+
+    new_pidvec = g_malloc(sizeof(pid_sort_t)*g_npids);
+    pold = g_pids;
+    pnew = new_pidvec;
+
+    if (type == MOVE_TOP) {
+        /* move to top */
+        *pnew++ = g_pids[pid_index];
+        for (i = 0; i < pid_index; i++)
+            *pnew++ = *pold++;
+        pold++;
+        i++;
+        for (; i < g_npids; i++)
+            *pnew++ = *pold++;
+    } else {
+        /* move to bottom */
+        for (i = 0; i < pid_index; i++)
+            *pnew++ = *pold++;
+        pold++;
+        i++;
+        for (; i < g_npids; i++)
+            *pnew++ = *pold++;
+        *pnew = g_pids[pid_index];
+    }
+
+    g_free(g_pids);
+    g_pids = new_pidvec;
+
+    /*
+     * Revert the pid_index mapping to an identity map, 
+     */
+    psp = g_pids;
+
+    for (i = 0; i < g_npids; i++) {
+        pp = psp->pid;
+        pp->pid_index = i;
+        psp++;
+    }
+    view1_display_when_idle();
+}
+
+/****************************************************************************
+* zoom_event
+* Process a zoom gesture. The use of doubles is required to avoid 
+* truncating the various variable values, which in turn would lead to
+* some pretty random-looking zoom responses.
+****************************************************************************/
+
+void zoom_event(GdkEventButton *e1, GdkEventButton *e2, v1_geometry_t *vp)
+{
+    double xrange;
+    double time_per_pixel;
+    double width_in_pixels;
+    double center_on_time, width_in_time;
+    double center_on_pixel;
+
+    /* 
+     * Clip the zoom area to the event display area. 
+     * Otherwise, center_on_time - width_in_time is in hyperspace
+     * to the left of zero 
+     */
+       
+    if (e1->x < vp->pid_ax_width)
+	e1->x = vp->pid_ax_width;
+    
+    if (e2->x < vp->pid_ax_width)
+	e2->x = vp->pid_ax_width;
+
+    if (e2->x == e1->x)
+	goto loser_zoom_repaint;
+
+    xrange = (double) (e2->x - e1->x);
+    if (xrange < 0.00)
+        xrange = -xrange;
+
+    /* Actually, width in pixels of half the zoom area */
+    width_in_pixels = xrange / 2.00;
+    time_per_pixel = dtime_per_pixel(vp);
+    width_in_time = width_in_pixels * time_per_pixel;
+
+    /* Center the screen on the center of the zoom area */
+    center_on_pixel = (double)((e2->x + e1->x) / 2.00) - 
+        (double)vp->pid_ax_width;
+    center_on_time = center_on_pixel*time_per_pixel + (double)vp->minvistime;
+
+    /*
+     * Transform back to 64-bit integer microseconds, reset the
+     * scrollbar, schedule a repaint. 
+     */
+    vp->minvistime = (ulonglong)(center_on_time - width_in_time);
+    vp->maxvistime = (ulonglong)(center_on_time + width_in_time);
+
+loser_zoom_repaint:
+    recompute_hscrollbar();
+    
+    view1_display_when_idle();
+}
+
+/****************************************************************************
+* scroll_y
+*
+* Scroll up or down by the specified delta
+*
+****************************************************************************/
+static void scroll_y(int delta)
+{
+    int new_index = s_v1->first_pid_index + delta;
+    if (new_index + s_v1->npids > g_npids)
+        new_index = g_npids - s_v1->npids;
+    if (new_index < 0)
+        new_index = 0;
+    
+    if (new_index != s_v1->first_pid_index) {
+        s_v1->first_pid_index = new_index;
+        GTK_ADJUSTMENT(s_view1_vsadj)->value = (gdouble)new_index;
+        gtk_adjustment_value_changed(GTK_ADJUSTMENT(s_view1_vsadj));
+        view1_display_when_idle();
+    }
+}
+
+/****************************************************************************
+* view1_handle_key_press_event
+* Relevant definitions in: /usr/include/gtk-1.2/gdk/gdktypes.h
+*
+* This routine implements hotkeys for the Quake generation:
+*
+*   W - zoom in
+*   S - zoom out
+*   A - pan left
+*   D - pan right
+*   R - pan up
+*   F - pan down
+*   T - more traces
+*   G - fewer traces
+*
+*   E - toggle summary mode
+*   C - toggle color mode
+*
+*   X - take snapshot
+*   Z - next snapshot
+*   P - persist snapshots to file
+*   L - load snapshots from file
+*
+* ctrl-Q - exit
+*
+****************************************************************************/
+gint
+view1_handle_key_press_event (GtkWidget *widget, GdkEventKey *event)
+{
+    long long delta;
+
+    switch (event->keyval) {
+        case GDK_w: // zoom in
+            view1_button_click_callback(NULL, (gpointer)ZOOMIN_BUTTON);
+            break;
+
+        case GDK_s: // zoom out
+            view1_button_click_callback(NULL, (gpointer)ZOOMOUT_BUTTON);
+            break;
+
+        case GDK_a: // pan left
+            delta = (s_v1->maxvistime - s_v1->minvistime) / 6;
+            if (s_v1->minvistime < delta) {
+                delta = s_v1->minvistime;
+            }
+            s_v1->minvistime -= delta;
+            s_v1->maxvistime -= delta;
+            recompute_hscrollbar();
+            break;
+
+        case GDK_d: // pan right
+            delta = (s_v1->maxvistime - s_v1->minvistime) / 6;
+            if (s_v1->maxvistime + delta > g_events[g_nevents - 1].time) {
+                /*
+                 * @@@ this doesn't seem to quite reach the far right hand
+                 * side correctly - not sure why.
+                 */
+                delta = g_events[g_nevents - 1].time - s_v1->maxvistime;
+            }
+            s_v1->minvistime += delta;
+            s_v1->maxvistime += delta;
+            recompute_hscrollbar();
+            break;
+
+        case GDK_r: // pan up
+            scroll_y(-1);
+            break;
+
+        case GDK_f: // pan down
+            scroll_y(+1);
+            break;
+
+        case GDK_t: // fewer tracks
+            view1_button_click_callback(NULL, (gpointer)LESS_TRACES_BUTTON);
+            break;
+
+        case GDK_g: // more tracks
+            view1_button_click_callback(NULL, (gpointer)MORE_TRACES_BUTTON);
+            break;
+
+        case GDK_e: // toggle summary mode
+            view1_button_click_callback
+                (NULL, (gpointer)(unsigned long long)
+                 (summary_mode ? NOSUMMARY_BUTTON : SUMMARY_BUTTON));
+            break;
+
+        case GDK_c: // toggle color mode
+            color_mode ^= 1;
+            view1_display_when_idle();
+            break;
+
+        case GDK_p: // persist snapshots
+            write_snapshot();
+            break;
+
+        case GDK_l: // load snapshots
+            read_snapshot();
+            break;
+
+        case GDK_x: // take snapshot
+            view1_button_click_callback(NULL, (gpointer)SNAP_BUTTON);
+            break;
+
+        case GDK_z: // next snapshot
+            view1_button_click_callback(NULL, (gpointer)NEXT_BUTTON);
+            break;
+
+        case GDK_q: // ctrl-q is exit
+            if (event->state & GDK_CONTROL_MASK) {
+                gtk_main_quit();
+            }
+            break;
+    }
+    return TRUE;
+}
+
+/****************************************************************************
+* button_press_event
+* Relevant definitions in: /usr/include/gtk-1.2/gdk/gdktypes.h
+*
+* This routine implements three functions: zoom-to-area, time ruler, and
+* show/hide event detail popup. 
+*
+* The left mouse button (button 1) has two simultaneous functions: event 
+* detail popup, and zoom-to-area. If the press and release events occur
+* within a small delta-x, it's a detail popup event.  Otherwise, it's
+* an area zoom.
+*
+* The right mouse button (button 3) implements the time ruler.
+****************************************************************************/
+
+static gint
+button_press_event (GtkWidget *widget, GdkEventButton *event)
+{
+    static GdkEventButton press1_event;
+    static boolean press1_valid;
+    static GdkEventButton press3_event;
+    static guint32 last_truler_time;
+    static boolean press3_valid;
+    static boolean zoom_bar_up;
+    int time_ax_y, xdelta;
+    char tmpbuf [128];
+    double time_per_pixel;
+
+    time_ax_y = 0;
+
+    switch(event->type) {
+    case GDK_BUTTON_PRESS:
+        /* Capture the appropriate starting point */
+        if (event->button == 1) {
+            press1_valid = TRUE;
+            press1_event = *event;
+            return(TRUE);
+        }
+        if (event->button == 3) {
+            press3_valid = TRUE;
+            press3_event = *event;
+            return(TRUE);
+        }
+        return(TRUE);
+
+    case GDK_BUTTON_RELEASE:
+        /* Time ruler */
+        if (press3_valid) {
+            press3_valid = FALSE;
+            /* Fix the cursor, and repaint the screen from scratch */
+            gdk_window_set_cursor (da->window, norm_cursor);
+            view1_display_when_idle();
+            return(TRUE);
+        }
+        /* Event select / zoom-to-area */
+        if (press1_valid) {
+            press1_valid = FALSE;
+            xdelta = (int)(press1_event.x - event->x);
+            if (xdelta < 0)
+                xdelta = -xdelta;
+
+            /* is the mouse more or less where it started? */
+            if (xdelta < 10) {
+                /* Control-left-mouse => sink the track */
+                /* Shift-left-mouse => raise the track */
+                if ((press1_event.state & GDK_CONTROL_MASK) ==
+                    GDK_CONTROL_MASK) {
+                    move_current_track(event, s_v1, MOVE_BOTTOM);
+                } else if ((press1_event.state & GDK_SHIFT_MASK) ==
+                           GDK_SHIFT_MASK) {
+                    move_current_track(event, s_v1, MOVE_TOP);
+                } else {
+                    /* No modifiers: toggle the event */
+                    toggle_event_select(event, s_v1);
+                }
+                /* Repaint to get rid of the zoom bar */
+                if (zoom_bar_up) {
+                    /* Fix the cursor and leave. No zoom */
+                    gdk_window_set_cursor (da->window, norm_cursor);
+                    zoom_bar_up = FALSE;
+                    break;
+                }
+            } else { /* mouse moved enough to zoom */
+                zoom_event(&press1_event, event, s_v1);
+                gdk_window_set_cursor (da->window, norm_cursor);
+                zoom_bar_up = FALSE;
+            }
+        }  else if (event->button == 4) {
+            /* scroll wheel up */
+            scroll_y(event->state & GDK_SHIFT_MASK ? -10 : -1);
+        } else if (event->button == 5) {
+            /* scroll wheel down */
+            scroll_y(event->state & GDK_SHIFT_MASK ? +10 : +1);
+        }
+        return(TRUE);
+
+    case GDK_MOTION_NOTIFY:
+        /* Button one followed by motion: draw zoom fence and fix cursor */
+        if (press1_valid) {
+            /* Fence, cursor already set */
+            if (zoom_bar_up)
+                return(TRUE);
+            
+            xdelta = (int)(press1_event.x - event->x);
+            if (xdelta < 0)
+                xdelta = -xdelta;
+            
+            /* Haven't moved enough to declare a zoom sequence yet */
+            if (xdelta < 10) 
+                return(TRUE);
+            
+            /* Draw the zoom fence, use the key-down X coordinate */
+            time_ax_y = s_v1->npids * s_v1->strip_height + s_v1->pid_ax_offset;
+            
+            line((int)(press1_event.x), s_v1->pop_offset, 
+                 (int)(press1_event.x), time_ax_y, LINE_DRAW_BLACK);
+            tbox("Zoom From Here...", (int)(press1_event.x), s_v1->pop_offset,
+                 TBOX_DRAW_BOXED);
+            gdk_window_set_cursor(da->window, zi_cursor);
+            zoom_bar_up = TRUE;
+            return(TRUE);
+        }
+        if (press3_valid) {
+            double nsec;
+
+            gdk_window_set_cursor(da->window, zi_cursor);
+
+            /* 
+             * Some filtration is needed on Solaris, or the server will hang
+             */
+            if (event->time - last_truler_time < 75)
+                return(TRUE);
+
+            last_truler_time = event->time;
+
+            line((int)(press3_event.x), s_v1->pop_offset, 
+                 (int)(press3_event.x), time_ax_y, LINE_DRAW_BLACK);
+
+            xdelta = (int)(press3_event.x - event->x);
+            if (xdelta < 0)
+                xdelta = -xdelta;
+            
+            time_per_pixel = ((double)(s_v1->maxvistime - s_v1->minvistime)) / 
+                ((double)(s_v1->total_width - s_v1->pid_ax_width)); 
+
+            time_ax_y = s_v1->npids * s_v1->strip_height + s_v1->pid_ax_offset;
+
+            line((int)(press3_event.x), s_v1->pop_offset, 
+                 (int)(press3_event.x), time_ax_y, LINE_DRAW_BLACK);
+            /*
+             * Note: use a fixed-width format so it looks like we're
+             * erasing and redrawing the box. 
+             */
+            nsec = ((double)xdelta)*time_per_pixel;
+            if (nsec >1e9) {
+                sprintf(tmpbuf, "%8.3f sec ", nsec/1e9);
+            } else if (nsec > 1e6) {
+                sprintf(tmpbuf, "%8.3f msec", nsec/1e6);
+            } else if (nsec > 1e3) {
+                sprintf(tmpbuf, "%8.3f usec", nsec/1e3);
+            } else {
+                sprintf(tmpbuf, "%8.0f nsec", nsec);
+            }
+            tbox(tmpbuf, (int)(press3_event.x), s_v1->pop_offset,
+                 TBOX_DRAW_BOXED);
+            return(TRUE);
+        }
+
+    default:
+        break;
+#ifdef DEBUG
+        g_print("button:\ttype = %d\n", event->type);
+        g_print("\twindow = 0x%x\n", event->window);
+        g_print("\tsend_event = %d\n", event->send_event);
+        g_print("\ttime = %d\n", event->time);
+        g_print("\tx = %6.2f\n", event->x);
+        g_print("\ty = %6.2f\n", event->y);
+        g_print("\tpressure = %6.2f\n", event->pressure);
+        g_print("\txtilt = %6.2f\n", event->xtilt);
+        g_print("\tytilt = %6.2f\n", event->ytilt);
+        g_print("\tstate = %d\n", event->state);
+        g_print("\tbutton = %d\n", event->button);
+        g_print("\tsource = %d\n", event->source);
+        g_print("\tdeviceid = %d\n", event->deviceid);
+        g_print("\tx_root = %6.2f\n", event->x_root);
+        g_print("\ty_root = %6.2f\n", event->y_root);
+        return(TRUE);
+#endif
+    }
+
+    view1_display_when_idle();
+
+    return(TRUE);
+}
+
+/****************************************************************************
+* configure_event
+* Happens when the window manager resizes the viewer's main window.
+****************************************************************************/
+
+static gint
+configure_event (GtkWidget *widget, GdkEventConfigure *event)
+{
+    /* Toss the previous drawing area backing store pixmap */
+    if (pm)
+        gdk_pixmap_unref(pm);
+    
+    /* Create a new pixmap, paint it */
+    pm = gdk_pixmap_new(widget->window,
+                        widget->allocation.width,
+                        widget->allocation.height,
+                        -1);
+    gdk_draw_rectangle (pm,
+                        widget->style->white_gc,
+                        TRUE,
+                        0, 0,
+                        widget->allocation.width,
+                        widget->allocation.height);
+
+    /* Reset the view geometry parameters, as required */
+    s_v1->total_width = widget->allocation.width;
+    s_v1->total_height = widget->allocation.height;
+    s_v1->npids = (s_v1->total_height - s_v1->time_ax_height) / 
+        s_v1->strip_height;
+
+    /* Schedule a repaint */
+    view1_display_when_idle();
+    return(TRUE);
+}
+
+/****************************************************************************
+* expose_event
+* Use backing store to fix the screen.
+****************************************************************************/
+static gint expose_event (GtkWidget *widget, GdkEventExpose *event)
+{
+    gdk_draw_pixmap(widget->window,
+                    widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
+                    pm,
+                    event->area.x, event->area.y,
+                    event->area.x, event->area.y,
+                    event->area.width, event->area.height);
+    
+    return(FALSE);
+}
+
+/****************************************************************************
+* event_search_internal
+* This routine searches forward from s_srchindex, looking for s_srchcode;
+* wraps at the end of the buffer.
+****************************************************************************/
+
+boolean event_search_internal (void)
+{
+    event_t *ep;
+    int i;
+    int index;
+    int pid_index;
+    boolean full_redisplay = FALSE;
+    ulonglong current_width;
+    char tmpbuf [64];
+
+    /* No events yet?  Act like the search worked, to avoid a loop */
+    if (g_nevents == 0)
+        return(TRUE);
+
+    ep = (g_events + s_srchindex);
+    ep->flags &= ~EVENT_FLAG_SEARCHRSLT;
+
+    /* 
+     * Assume the user wants to search [plus or minus]
+     * from where they are.
+     */
+#ifdef notdef
+    if (ep->time < s_v1->minvistime)
+        s_srchindex = find_event_index (s_v1->minvistime);
+#endif
+
+    for (i = 1; i <= g_nevents; i++) {
+        index = (srch_chase_dir == SRCH_CHASE_BACKWARD) ?
+            (s_srchindex - i) % g_nevents :
+            (i + s_srchindex) % g_nevents;
+        
+        ep = (g_events + index);
+        
+        if (ep->code == s_srchcode) {
+            if (s_srchfail_up)
+                message_line("");
+            s_srchindex = index;
+            pid_index = ep->pid->pid_index;
+            
+            /* Need a vertical scroll? */
+            if ((pid_index < s_v1->first_pid_index) ||
+                (pid_index >= s_v1->first_pid_index + s_v1->npids)) {
+                if (pid_index > (g_npids - s_v1->npids))
+                    pid_index = (g_npids - s_v1->npids);
+                s_v1->first_pid_index = pid_index;
+                GTK_ADJUSTMENT(s_view1_vsadj)->value = 
+                    (gdouble)s_v1->first_pid_index;
+                gtk_adjustment_value_changed(GTK_ADJUSTMENT(s_view1_vsadj));
+                full_redisplay = TRUE;
+            }
+            
+            /* Need a horizontal scroll? */
+            if (ep->time < s_v1->minvistime || ep->time > s_v1->maxvistime) {
+                current_width = (s_v1->maxvistime - s_v1->minvistime);
+                if (ep->time < ((current_width+1) / 2)) {
+                    s_v1->minvistime = 0ll;
+                    s_v1->maxvistime = current_width;
+                } else {
+                    s_v1->minvistime = ep->time - ((current_width+1)/2);
+                    s_v1->maxvistime = ep->time + ((current_width+1)/2);
+                }
+                recompute_hscrollbar();
+                full_redisplay = TRUE;
+            }
+            ep->flags |= EVENT_FLAG_SEARCHRSLT;
+            full_redisplay = TRUE;
+
+#ifdef NOTDEF
+            if (!full_redisplay){
+                if (!s_result_up) {
+                    s_result_up = TRUE;
+                    time_per_pixel = dtime_per_pixel(s_v1);
+                    
+                    y = pid_index*s_v1->strip_height + s_v1->event_offset;
+                    x = s_v1->pid_ax_width + 
+                        (int)(((double)(ep->time - s_v1->minvistime)) / 
+                              time_per_pixel);
+                    sprintf(tmpbuf, "SEARCH RESULT");
+                    tbox(tmpbuf, x, y - s_v1->pop_offset, TBOX_DRAW_BOXED);
+                    line(x, y-s_v1->pop_offset, x, y, LINE_DRAW_BLACK);
+                } else {
+                    full_redisplay = TRUE;
+                }
+            }
+#endif
+
+            if (full_redisplay)
+                view1_display_when_idle();
+            return(TRUE);
+        }
+    }
+    sprintf (tmpbuf, "Search for event %ld failed...\n", s_srchcode);
+    message_line(tmpbuf);
+    s_srchfail_up = TRUE;
+    return(TRUE);
+}
+
+/****************************************************************************
+* event_search_callback
+****************************************************************************/
+
+boolean event_search_callback (char *s)
+{
+    /* No events yet?  Act like the search worked, to avoid a loop */
+    if (g_nevents == 0)
+        return(TRUE);
+
+    s_srchcode = atol(s);
+    
+    if (s_srchcode == 0)
+        return(FALSE);
+
+    return(event_search_internal());
+}
+
+/****************************************************************************
+* event_search
+****************************************************************************/
+
+static void event_search (void)
+{
+    modal_dialog ("Event Search: Please Enter Event Code",
+                  "Invalid: Please Reenter Event Code", NULL,
+                  event_search_callback);
+}
+
+/****************************************************************************
+* init_track_colors
+****************************************************************************/
+static void init_track_colors(void)
+{
+    int         i;
+    unsigned    hash;
+    char       *label_char;
+    unsigned    RGB[3];
+    gboolean    dont_care[g_npids];
+
+    /*
+     * If we've already allocated the colors once, then in theory we should
+     * just be able to re-order the GCs already created to match the new track
+     * order; the track -> color mapping doesn't currently change at runtime.
+     * However, it's easier just to allocate everything from fresh. As a nod in
+     * the direction of politeness towards our poor abused X server, we at
+     * least mop up the previously allocated GCs first, although in practice
+     * even omitting this didn't seem to cause a problem. 
+     */
+    if (s_color != NULL ) {
+        gdk_colormap_free_colors(gtk_widget_get_colormap(da), 
+                                 s_color, g_npids);
+        memset(s_color, 0, sizeof(GdkColor) * g_npids);
+    } else {
+        /*
+         * First time through: allocate the array to hold the GCs.
+         */
+        s_color = g_malloc(sizeof(GdkColor) * g_npids);
+    }
+
+    /*
+     * Go through and assign a color for each track.
+     */
+    for (i = 0; i < g_npids; i++) {
+        /*
+         * We compute the color from a hash of the thread name. That way we get
+         * a distribution of different colors, and the same thread has the same
+         * color across multiple data sets. Unfortunately, even though the
+         * process name and thread id are invariant across data sets, the
+         * process id isn't, so we want to exclude that from the hash. Since
+         * the pid appears in parentheses after the process name and tid, we
+         * can just stop at the '(' character.
+         *
+         * We could create a substring and use the CLIB Jenkins hash, but given
+         * we're hashing ascii data, a suitable Bernstein hash is pretty much
+         * just as good, and it's easiest just to compute it inline.
+         */
+        label_char = get_track_label(g_pids[i].pid_value);
+        hash = 0;
+        while (*label_char != '\0' && *label_char != '(') {
+            hash = hash * 33 + *label_char++;
+        }
+        hash += hash >> 5;    /* even out the lower order bits a touch */
+
+        /*
+         * OK, now we have our hash. We get the color by using the first three
+         * bytes of the hash for the RGB values (expanded from 8 to 16 bits),
+         * and then use the fourth byte to choose one of R, G, B and mask this
+         * one down. This ensures the color can't be too close to white and
+         * therefore hard to see.
+         *
+         * We also drop the top bit of the green, since bright green on its own
+         * is hard to see against white. Generally we err on the side of
+         * keeping it dark, rather than using the full spectrum of colors. This
+         * does result in something of a preponderance of muddy colors and a
+         * bit of a lack of cheery bright ones, but at least you can read
+         * everything. It would be nice to do better.
+         */
+        RGB[0] = (hash & 0xff000000) >> 16;
+        RGB[1] = (hash & 0x007f0000) >> 8;
+        RGB[2] = (hash & 0x0000ff00);
+        RGB[hash % 3] &= 0x1fff;
+
+        {
+            GdkColor color = {0, RGB[0], RGB[1], RGB[2]};
+            s_color[i] = color;
+            g_pids[i].color_index = i;
+        }
+    }
+
+    /*
+     * Actually allocate the colors in one bulk operation. We ignore the return
+     * values.
+     */
+    gdk_colormap_alloc_colors(gtk_widget_get_colormap(da), 
+                              s_color, g_npids, FALSE, TRUE, dont_care);
+}
+
+
+/****************************************************************************
+* chase_event_etc
+* Reorder the pid_index fields so the viewer "chases" the last selected
+* event.
+****************************************************************************/
+
+static void chase_event_etc(enum chase_mode mode)
+{
+    pid_sort_t *psp, *new_pidvec;
+    pid_data_t *pp;
+    event_t *ep;
+    int pids_mapped;
+    ulong code_to_chase;
+    ulong datum_to_chase;
+    ulong pid_to_chase;
+    int i;
+    int winner;
+
+    if (!s_last_selected_event) {
+        infobox("No selected event", 
+                "\nPlease select an event and try again...\n");
+        return;
+    }
+
+    /* Clear all index assignments */
+    psp = g_pids;
+    for (i = 0; i < g_npids; i++) {
+        pp = psp->pid;
+        pp->pid_index = 0xFFFFFFFF;
+        psp++;
+    }
+
+    ep = s_last_selected_event;
+    code_to_chase = ep->code;
+    datum_to_chase = ep->datum;
+    pid_to_chase = ep->pid->pid_value;
+    pids_mapped = 0;
+    new_pidvec = g_malloc(sizeof(pid_sort_t)*g_npids);
+
+    while (1) {
+        if (srch_chase_dir == SRCH_CHASE_FORWARD) {
+            if (ep >= g_events + g_nevents)
+                break;
+        } else {
+            if (ep < g_events)
+                break;
+        }
+
+        winner = 0;
+        switch(mode) {
+        case CHASE_EVENT:
+            if (ep->code == code_to_chase) {
+                winner = 1;
+            }
+            break;
+
+        case CHASE_DATUM:
+            if (ep->datum == datum_to_chase) {
+                winner = 1;
+            }
+            break;
+
+        case CHASE_TRACK:
+            if (ep->pid->pid_value == pid_to_chase) {
+                winner = 1;
+            }
+            break;
+
+        default:
+            infobox("BUG", "unknown mode in chase_event_etc\n");
+            break;
+        }
+
+        if (winner) {
+            if (ep->pid->pid_index == 0xFFFFFFFF) {
+                ep->pid->pid_index = pids_mapped;
+                new_pidvec[pids_mapped].pid = ep->pid;
+                new_pidvec[pids_mapped].pid_value = ep->pid->pid_value;
+                new_pidvec[pids_mapped].color_index = 0;
+                pids_mapped++;
+                if (pids_mapped == g_npids)
+                    break;
+            }
+        }
+        if (srch_chase_dir == SRCH_CHASE_FORWARD)
+            ep++;
+        else
+            ep--;
+    }
+
+    /* Pass 2, first-to-last, to collect stragglers */
+    ep = g_events;
+
+    while (ep < g_events + g_nevents) {
+        if (ep->pid->pid_index == 0xFFFFFFFF) {
+            ep->pid->pid_index = pids_mapped;
+            new_pidvec[pids_mapped].pid = ep->pid;
+            new_pidvec[pids_mapped].pid_value = ep->pid->pid_value;
+            new_pidvec[pids_mapped].color_index = 0;
+            pids_mapped++;
+            if (pids_mapped == g_npids)
+                break;
+        }
+        ep++;
+    }
+
+    if (pids_mapped != g_npids) {
+        infobox("BUG", "\nDidn't map all pids in chase_event_etc\n");
+    }
+
+    g_free (g_pids);
+    g_pids = new_pidvec;
+    
+    /*
+     * The new g_pids vector contains the "chase" sort, so we revert
+     * the pid_index mapping to an identity map 
+     */
+    psp = g_pids;
+
+    for (i = 0; i < g_npids; i++) {
+        pp = psp->pid;
+        pp->pid_index = i;
+        psp++;
+    }
+
+    /* AutoScroll the PID axis so we show the first "chased" event */
+    s_v1->first_pid_index = 0;
+    GTK_ADJUSTMENT(s_view1_vsadj)->value = 0.00;
+    gtk_adjustment_value_changed(GTK_ADJUSTMENT(s_view1_vsadj));
+    init_track_colors();
+    view1_display_when_idle();
+}
+
+/****************************************************************************
+* unchase_event_etc
+* Copy g_original_pids to g_pids, revert index mapping
+****************************************************************************/
+static void unchase_event_etc(void)
+{
+    int i;
+    pid_sort_t *psp;
+    pid_data_t *pp;
+
+    memcpy (g_pids, g_original_pids, sizeof(pid_sort_t)*g_npids); 
+
+    /* Fix the pid structure index mappings */
+    psp = g_pids;
+
+    for (i = 0; i < g_npids; i++) {
+        pp = psp->pid;
+        pp->pid_index = i;
+        psp++;
+    }
+
+    /* Scroll PID axis to the top */
+    s_v1->first_pid_index = 0;
+    GTK_ADJUSTMENT(s_view1_vsadj)->value = 0.00;
+    gtk_adjustment_value_changed(GTK_ADJUSTMENT(s_view1_vsadj));
+    init_track_colors();
+    view1_display_when_idle();
+}
+
+/****************************************************************************
+* print_ps_header
+* To fit a reasonable-sized landscape mode plot onto letter-size paper,
+* scale everything by .75.
+****************************************************************************/
+
+static void print_ps_header (v1_geometry_t *vp, char *filename)
+{
+    time_t now;
+
+    now = time(0);
+
+    fprintf(s_printfp, "%%%%!PS-Adobe-3.0 EPSF-3.0\n");
+    fprintf(s_printfp, "%%%%Creator: G2 Event Viewer\n");
+    fprintf(s_printfp, "%%%%Title: %s\n", filename);
+    fprintf(s_printfp, "%%%%CreationDate: %s", ctime(&now));
+    fprintf(s_printfp, "%%%%DocumentData: Clean7Bit\n");
+    fprintf(s_printfp, "%%%%Origin: 0 0\n");
+    fprintf(s_printfp, "%%%%BoundingBox: 0 0 %d %d\n", vp->total_height, 
+           vp->total_width);
+    fprintf(s_printfp, "%%%%LanguageLevel: 2\n");
+    fprintf(s_printfp, "%%%%Pages: 1\n");
+    fprintf(s_printfp, "%%%%Page: 1 1\n");
+    fprintf(s_printfp, "%%%%EOF\n");
+    fprintf(s_printfp, "/Times-Roman findfont\n");
+    fprintf(s_printfp, "12 scalefont\n");
+    fprintf(s_printfp, "setfont\n");
+    fprintf(s_printfp, ".75 .75 scale\n");
+}
+
+/****************************************************************************
+* xrt
+* Xcoordinate rotate and translate.  We need to emit postscript that
+* has a reasonable aspect ratio for printing.  To do that, we rotate the
+* intended picture by 90 degrees, using the standard 2D rotation 
+* formula:
+* 
+*     Xr = x*cos(theta) - y*sin(theta);
+*     Yr = x*sin(theta) + y*cos(theta);
+*
+* If we let theta = 90, this reduces to
+*     Xr = -y
+*     Yr =  x
+*
+* Translate back to the origin in X by adding Ymax, yielding
+*     Xrt = Ymax - y
+****************************************************************************/
+
+static inline int xrt(int x, int y)
+{
+    return (s_v1->total_height - y);
+}
+
+static inline int yrt(int x, int y)
+{
+    return(x);
+}
+
+/****************************************************************************
+* print_screen_callback
+****************************************************************************/
+
+static boolean print_screen_callback(char *filename)
+{
+    s_printfp = fopen (filename, "wt");
+
+    if (s_printfp == NULL)
+        return(FALSE);
+
+    /*
+     * This variable allows us to magically turn the view1 display
+     * code into a print-driver, with a minimum of fuss. The idea is to
+     * magically change TBOX_DRAW_XXX into TBOX_PRINT_XXX by adding
+     * the required value, aka s_print_offset.
+     * Make sure to fix g2.h if you mess here, or vice versa.
+     */
+    s_print_offset = TBOX_PRINT_PLAIN - TBOX_DRAW_PLAIN;
+
+    print_ps_header(s_v1, filename);
+
+    display_pid_axis(s_v1);
+    display_event_data(s_v1);
+    display_time_axis(s_v1);
+
+    fclose (s_printfp);
+    s_printfp = 0;
+    s_print_offset = 0;
+
+    /* For tactile feedback */
+    view1_display_when_idle();
+    return(TRUE);
+}
+
+/****************************************************************************
+* view1_button_click_callback 
+****************************************************************************/
+
+static void view1_button_click_callback(GtkButton *item, gpointer data)
+{
+    enum view1_button_click click = (enum view1_button_click) data;
+    event_t *ep;
+    ulonglong event_incdec;
+    ulonglong current_width;
+    ulonglong zoom_delta;
+
+
+    current_width = s_v1->maxvistime - s_v1->minvistime;
+    event_incdec = (current_width) / 3;
+
+    if (event_incdec == 0LL)
+        event_incdec = 1;
+
+    zoom_delta = (s_v1->maxvistime - s_v1->minvistime) / 6;
+
+    switch(click) {
+    case TOP_BUTTON:
+        /* First PID to top of window */
+        s_v1->first_pid_index = 0;
+        GTK_ADJUSTMENT(s_view1_vsadj)->value = 0.00;
+        gtk_adjustment_value_changed(GTK_ADJUSTMENT(s_view1_vsadj));
+        break;
+
+    case BOTTOM_BUTTON:
+        s_v1->first_pid_index = g_npids - s_v1->npids;
+        if (s_v1->first_pid_index < 0)
+            s_v1->first_pid_index = 0;
+        GTK_ADJUSTMENT(s_view1_vsadj)->value = (gdouble)s_v1->first_pid_index;
+        gtk_adjustment_value_changed(GTK_ADJUSTMENT(s_view1_vsadj));
+        break;
+
+    case SNAP_BUTTON:
+        add_snapshot();
+        break;
+
+    case NEXT_BUTTON:
+        next_snapshot();
+        break;
+
+    case DEL_BUTTON:
+        del_snapshot();
+        break;
+
+    case CHASE_EVENT_BUTTON:
+        chase_event_etc(CHASE_EVENT);
+        break;
+
+    case CHASE_DATUM_BUTTON:
+        chase_event_etc(CHASE_DATUM);
+        break;
+
+    case CHASE_TRACK_BUTTON:
+        chase_event_etc(CHASE_TRACK);
+        break;
+
+    case UNCHASE_BUTTON:
+        unchase_event_etc();
+        break;
+
+    case START_BUTTON:
+    start_button:
+        s_v1->minvistime = 0LL;
+        s_v1->maxvistime = current_width;
+        recompute_hscrollbar();
+        break;
+
+    case ZOOMIN_BUTTON:
+        s_v1->minvistime += zoom_delta;
+        s_v1->maxvistime -= zoom_delta;
+        recompute_hscrollbar();
+        break;
+
+    case SEARCH_AGAIN_BUTTON:
+        if (s_srchcode) {
+            event_search_internal();
+            break;
+        }
+        /* NOTE FALLTHROUGH */
+
+    case SEARCH_BUTTON:
+        event_search();
+        break;
+
+    case ZOOMOUT_BUTTON:
+        if (zoom_delta == 0LL)
+            zoom_delta = 1;
+
+        if (s_v1->minvistime >= zoom_delta) {
+            s_v1->minvistime -= zoom_delta;
+            s_v1->maxvistime += zoom_delta;
+        } else {
+            s_v1->minvistime = 0;
+            s_v1->maxvistime += zoom_delta*2;
+        }
+        
+        if ((s_v1->maxvistime - s_v1->minvistime) * 8 > 
+            g_events[g_nevents-1].time * 9) {
+            s_v1->minvistime = 0;
+            s_v1->maxvistime = g_events[g_nevents-1].time * 9 / 8;
+        }
+        recompute_hscrollbar();
+        break;
+
+    case END_BUTTON:
+        ep = (g_events + g_nevents - 1);
+        s_v1->maxvistime = ep->time + event_incdec/3;
+        s_v1->minvistime = s_v1->maxvistime - current_width;
+        if (s_v1->minvistime > s_v1->maxvistime)
+            goto start_button;
+        recompute_hscrollbar();
+        break;
+
+    case MORE_TRACES_BUTTON:
+	/* Reduce the strip height to fit more traces on screen */
+	s_v1->strip_height -= 1;
+
+	if (s_v1->strip_height < 1) {
+	    s_v1->strip_height = 1;
+	}
+
+	/* Recalculate the number of strips on the screen */
+	s_v1->npids = (s_v1->total_height - s_v1->time_ax_height) / 
+	    s_v1->strip_height;
+	recompute_vscrollbar();
+	break;
+
+    case LESS_TRACES_BUTTON:
+	/* Increase the strip height to fit fewer on the screen */
+	s_v1->strip_height += 1;
+	if (s_v1->strip_height > 80) {
+	    s_v1->strip_height = 80;
+	}
+
+	/* Recalculate the number of strips on the screen */
+	s_v1->npids = (s_v1->total_height - s_v1->time_ax_height) / 
+	    s_v1->strip_height;
+	recompute_vscrollbar();
+	break;
+
+    case FORWARD_BUTTON:
+        srch_chase_dir = SRCH_CHASE_FORWARD;
+        gtk_widget_hide (s_view1_forward_button);
+        gtk_widget_show (s_view1_backward_button);
+        break;
+
+    case BACKWARD_BUTTON:
+        srch_chase_dir = SRCH_CHASE_BACKWARD;
+        gtk_widget_show (s_view1_forward_button);
+        gtk_widget_hide (s_view1_backward_button);
+        break;
+
+    case SUMMARY_BUTTON:
+        summary_mode = TRUE;
+        gtk_widget_hide (s_view1_summary_button);
+        gtk_widget_show (s_view1_nosummary_button);
+        break;
+
+    case NOSUMMARY_BUTTON:
+        summary_mode = FALSE;
+        gtk_widget_show (s_view1_summary_button);
+        gtk_widget_hide (s_view1_nosummary_button);
+        break;
+    }
+
+    view1_display_when_idle();
+}
+
+/****************************************************************************
+* view1_print_callback
+****************************************************************************/
+
+void view1_print_callback (GtkToggleButton *notused, gpointer nu2)
+{
+    modal_dialog("Print Screen (PostScript format) to file:",
+                 "Invalid file: Print Screen to file:",
+                 "g2.ps", print_screen_callback);
+}
+
+/****************************************************************************
+* view1_hscroll
+****************************************************************************/
+
+static void view1_hscroll (GtkAdjustment *adj, GtkWidget *notused)
+{
+    ulonglong current_width;
+
+    current_width = (s_v1->maxvistime - s_v1->minvistime);
+
+    s_v1->minvistime = (ulonglong)(adj->value);
+    s_v1->maxvistime = s_v1->minvistime + current_width;
+    
+    view1_display_when_idle();
+
+#ifdef NOTDEF
+    g_print ("adj->lower = %.2f\n", adj->lower);
+    g_print ("adj->upper = %.2f\n", adj->upper);
+    g_print ("adj->value = %.2f\n", adj->value);
+    g_print ("adj->step_increment = %.2f\n", adj->step_increment);
+    g_print ("adj->page_increment = %.2f\n", adj->page_increment);
+    g_print ("adj->page_size = %.2f\n", adj->page_size);
+#endif
+}
+
+/****************************************************************************
+* view1_vscroll
+****************************************************************************/
+
+static void view1_vscroll (GtkAdjustment *adj, GtkWidget *notused)
+{
+    s_v1->first_pid_index = (int)adj->value;
+    view1_display_when_idle();
+}
+
+void set_pid_ax_width(int width)
+{
+    s_v1->pid_ax_width = width;
+    view1_display_when_idle();
+}
+
+/****************************************************************************
+* view1_init
+****************************************************************************/
+
+void view1_init(void)
+{
+
+    c_view1_draw_width = atol(getprop_default("drawbox_width", "700"));
+    c_view1_draw_height = atol(getprop_default("drawbox_height", "400"));
+
+    s_v1->pid_ax_width = 80;
+    s_v1->time_ax_height = 80;
+    s_v1->time_ax_spacing = 100;
+    s_v1->strip_height = 25;
+    s_v1->pop_offset = 20;
+    s_v1->pid_ax_offset = 34;
+    s_v1->event_offset = 40;
+    s_v1->total_height = c_view1_draw_height;
+    s_v1->total_width = c_view1_draw_width;
+    s_v1->first_pid_index = 0;
+
+    s_v1->npids = (s_v1->total_height - s_v1->time_ax_height) / 
+        s_v1->strip_height;
+
+    s_v1->minvistime = 0;
+    s_v1->maxvistime = 200;
+
+    s_view1_vbox = gtk_vbox_new(FALSE, 5);
+
+    s_view1_hbox = gtk_hbox_new(FALSE, 5);
+
+    da = gtk_drawing_area_new();
+    gtk_drawing_area_size(GTK_DRAWING_AREA(da), c_view1_draw_width, 
+                          c_view1_draw_height);
+    
+#ifdef NOTDEF
+    gtk_signal_connect (GTK_OBJECT (da), "motion_notify_event",
+                        (GtkSignalFunc) motion_notify_event, NULL);
+#endif
+
+    gtk_signal_connect (GTK_OBJECT (da), "expose_event",
+                        (GtkSignalFunc) expose_event, NULL);
+
+    gtk_signal_connect (GTK_OBJECT(da),"configure_event",
+                        (GtkSignalFunc) configure_event, NULL);
+
+    gtk_signal_connect (GTK_OBJECT (da), "button_press_event",
+                        (GtkSignalFunc) button_press_event, NULL);
+    
+    gtk_signal_connect (GTK_OBJECT (da), "button_release_event",
+                        (GtkSignalFunc) button_press_event, NULL);
+    
+    gtk_signal_connect (GTK_OBJECT (da), "motion_notify_event",
+                        (GtkSignalFunc) button_press_event, NULL);
+    
+    gtk_widget_set_events (da, GDK_BUTTON_PRESS_MASK 
+                           | GDK_BUTTON_RELEASE_MASK | GDK_EXPOSURE_MASK 
+                           | GDK_BUTTON_MOTION_MASK);
+
+
+    gtk_box_pack_start(GTK_BOX(s_view1_hbox), da, TRUE, TRUE, 0);
+
+    g_font = gdk_font_load ("8x13");
+    if (g_font == NULL) {
+        g_error("Couldn't load 8x13 font...\n");
+    }
+    gdk_font_ref(g_font);
+
+    /* PID axis menu */
+    s_view1_vmenubox = gtk_vbox_new(FALSE, 5);
+
+    s_view1_vsadj = gtk_adjustment_new(0.0 /* initial value */, 
+                                       0.0 /* minimum value */,
+                                       2000.0 /* maximum value */,
+                                       0.1 /* step increment */, 
+                                       10.0/* page increment */, 
+                                       10.0/* page size */);
+
+    s_view1_vscroll = gtk_vscrollbar_new (GTK_ADJUSTMENT(s_view1_vsadj));
+
+    gtk_signal_connect (GTK_OBJECT (s_view1_vsadj), "value-changed",
+                        GTK_SIGNAL_FUNC (view1_vscroll), 
+                        (gpointer)s_view1_vscroll);
+
+    s_view1_topbutton = gtk_button_new_with_label("Top");
+    s_view1_bottombutton = gtk_button_new_with_label("Bottom");
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_topbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) TOP_BUTTON);
+    
+    gtk_signal_connect (GTK_OBJECT(s_view1_bottombutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) BOTTOM_BUTTON);
+
+    /* More Traces button and Less Traces button */
+    s_view1_more_traces_button = gtk_button_new_with_label("More Traces");
+    s_view1_less_traces_button = gtk_button_new_with_label("Less Traces");
+    gtk_signal_connect (GTK_OBJECT(s_view1_more_traces_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) MORE_TRACES_BUTTON);
+    gtk_signal_connect (GTK_OBJECT(s_view1_less_traces_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) LESS_TRACES_BUTTON);
+    
+#ifdef NOTDEF
+    /* Trick to bottom-justify the menu: */
+    s_view1_pad1 = gtk_vbox_new(FALSE, 0);
+    gtk_box_pack_start (GTK_BOX(s_view1_vmenubox), s_view1_pad1,
+                        TRUE, FALSE, 0);
+
+#endif
+    
+    gtk_box_pack_start (GTK_BOX(s_view1_vmenubox), s_view1_topbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_vmenubox), s_view1_vscroll,
+                        TRUE, TRUE, 0);
+    
+    gtk_box_pack_start (GTK_BOX(s_view1_vmenubox), s_view1_bottombutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_vmenubox), s_view1_more_traces_button,
+                        FALSE, FALSE, 0);
+    
+    gtk_box_pack_start (GTK_BOX(s_view1_vmenubox), s_view1_less_traces_button,
+                        FALSE, FALSE, 0);
+    
+    gtk_box_pack_start (GTK_BOX(s_view1_hbox), s_view1_vmenubox,
+                        FALSE, FALSE, 0);
+
+    /* Time axis menu */
+
+    s_view1_hmenubox = gtk_hbox_new(FALSE, 5);
+    
+    s_view1_startbutton = gtk_button_new_with_label("Start");
+
+    s_view1_zoominbutton = gtk_button_new_with_label("ZoomIn");
+
+    s_view1_searchbutton = gtk_button_new_with_label("Search");
+
+    s_view1_srchagainbutton = gtk_button_new_with_label("Search Again");
+
+    s_view1_zoomoutbutton = gtk_button_new_with_label("ZoomOut");
+
+    s_view1_endbutton = gtk_button_new_with_label("End");
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_startbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) START_BUTTON);
+    
+    gtk_signal_connect (GTK_OBJECT(s_view1_zoominbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) ZOOMIN_BUTTON);
+    
+    gtk_signal_connect (GTK_OBJECT(s_view1_searchbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) SEARCH_BUTTON);
+    
+    gtk_signal_connect (GTK_OBJECT(s_view1_srchagainbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) SEARCH_AGAIN_BUTTON);
+    
+    gtk_signal_connect (GTK_OBJECT(s_view1_zoomoutbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) ZOOMOUT_BUTTON);
+    
+    gtk_signal_connect (GTK_OBJECT(s_view1_endbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) END_BUTTON);
+    
+    s_view1_hsadj = gtk_adjustment_new(0.0 /* initial value */, 
+                                       0.0 /* minimum value */,
+                                       2000.0 /* maximum value */,
+                                       0.1 /* step increment */, 
+                                       10.0/* page increment */, 
+                                       10.0/* page size */);
+
+    s_view1_hscroll = gtk_hscrollbar_new (GTK_ADJUSTMENT(s_view1_hsadj));
+
+    gtk_signal_connect (GTK_OBJECT (s_view1_hsadj), "value-changed",
+                        GTK_SIGNAL_FUNC (view1_hscroll), 
+                        (gpointer)s_view1_hscroll);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox), s_view1_startbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox), s_view1_hscroll,
+                        TRUE, TRUE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox), s_view1_endbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox), s_view1_zoominbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox), s_view1_searchbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox), s_view1_srchagainbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox), s_view1_zoomoutbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_vbox), s_view1_hbox, 
+                        TRUE, TRUE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_vbox), s_view1_hmenubox,
+                        FALSE, FALSE, 0);
+
+
+    s_view1_hmenubox2 = gtk_hbox_new(FALSE, 5);
+
+    s_view1_snapbutton = gtk_button_new_with_label("Snap");
+
+    s_view1_nextbutton = gtk_button_new_with_label("Next");
+
+    s_view1_delbutton = gtk_button_new_with_label("Del");
+
+    s_view1_chase_event_button = gtk_button_new_with_label("ChaseEvent");
+
+    s_view1_chase_datum_button = gtk_button_new_with_label("ChaseDatum");
+
+    s_view1_chase_track_button = gtk_button_new_with_label("ChaseTrack");
+
+    s_view1_unchasebutton = gtk_button_new_with_label("NoChase");
+
+    s_view1_forward_button = gtk_button_new_with_label("->SrchChase(is<-)");
+    s_view1_backward_button = gtk_button_new_with_label("<-SrchChase(is->)");
+
+    s_view1_summary_button = gtk_button_new_with_label("Summary");
+    s_view1_nosummary_button = gtk_button_new_with_label("NoSummary");
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_snapbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) SNAP_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_nextbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) NEXT_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_delbutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) DEL_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_chase_event_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) CHASE_EVENT_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_chase_datum_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) CHASE_DATUM_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_chase_track_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) CHASE_TRACK_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_unchasebutton), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) UNCHASE_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_forward_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) FORWARD_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_backward_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) BACKWARD_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_summary_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) SUMMARY_BUTTON);
+
+    gtk_signal_connect (GTK_OBJECT(s_view1_nosummary_button), "clicked",
+                        GTK_SIGNAL_FUNC(view1_button_click_callback), 
+                        (gpointer) NOSUMMARY_BUTTON);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_vbox), s_view1_hmenubox2,
+                        FALSE, FALSE, 0);
+    
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_snapbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_nextbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_delbutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_chase_event_button,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_chase_datum_button,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_chase_track_button,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_unchasebutton,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_forward_button,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_backward_button,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_summary_button,
+                        FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_hmenubox2), s_view1_nosummary_button,
+                        FALSE, FALSE, 0);
+
+    s_view1_label = gtk_label_new(NULL);
+
+    gtk_box_pack_start (GTK_BOX(s_view1_vbox), s_view1_label,
+			FALSE, FALSE, 0);
+
+    gtk_box_pack_start (GTK_BOX(g_mainhbox), s_view1_vbox,
+                        TRUE, TRUE, 0);
+
+    gtk_widget_show_all (s_view1_vbox);
+    GTK_WIDGET_SET_FLAGS(da, GTK_CAN_FOCUS);
+    gtk_widget_grab_focus(da);
+
+    gtk_widget_hide (s_view1_forward_button);
+    gtk_widget_hide (summary_mode ? s_view1_summary_button
+                                  : s_view1_nosummary_button);
+
+    zi_source = gdk_bitmap_create_from_data (NULL, (char *)zi_bits, zi_width, 
+                                             zi_height);
+    zi_mask = gdk_bitmap_create_from_data (NULL, (char *)zi_bkgd, zi_width,
+                                           zi_height);
+
+    zi_cursor = (GdkCursor *) gdk_cursor_new_from_pixmap (zi_source, 
+                                                          zi_mask, &fg_black,
+                                                          &bg_white, zi_x_hot,
+                                                          zi_y_hot);
+    gdk_pixmap_unref (zi_source);
+    gdk_pixmap_unref (zi_mask);
+
+    norm_cursor = (GdkCursor *) gdk_cursor_new (GDK_TOP_LEFT_ARROW);
+}
+
+/****************************************************************************
+* line_print
+****************************************************************************/
+
+void line_print (int x1, int y1, int x2, int y2)
+{
+    fprintf(s_printfp, "newpath\n");
+    fprintf(s_printfp, "%d %d moveto\n", xrt(x1, s_v1->total_height - y1), 
+            yrt(x1, s_v1->total_height - y1));
+
+    fprintf(s_printfp, "%d %d lineto\n", xrt (x2, s_v1->total_height - y2),
+            yrt (x2, s_v1->total_height - y2));
+    fprintf(s_printfp, "1 setlinewidth\n");
+    fprintf(s_printfp, "stroke\n");
+}
+
+/****************************************************************************
+* tbox_print
+****************************************************************************/
+GdkRectangle *tbox_print (char *s, int x, int y, enum view1_tbox_fn function,
+                          GdkRectangle *rp)
+{
+    if (function == TBOX_PRINT_BOXED) {
+        rp->width -= 4;
+    }
+
+    if ((function == TBOX_PRINT_BOXED) ||
+	(function == TBOX_PRINT_EVENT)) {
+
+        fprintf(s_printfp, "newpath\n");
+        fprintf(s_printfp, "0 setlinewidth\n");
+        fprintf(s_printfp, "%d %d moveto\n", 
+                xrt(rp->x, s_v1->total_height - rp->y),
+                yrt(rp->x, s_v1->total_height - rp->y));
+        
+        fprintf(s_printfp, "%d %d lineto\n", 
+                xrt (rp->x+rp->width, s_v1->total_height - rp->y),
+                yrt (rp->x+rp->width, s_v1->total_height - rp->y));
+
+        fprintf(s_printfp, "%d %d lineto\n", 
+                xrt(rp->x+rp->width, s_v1->total_height - (rp->y+rp->height)),
+                yrt(rp->x+rp->width, s_v1->total_height - (rp->y+rp->height)));
+
+        fprintf(s_printfp, "%d %d lineto\n", 
+                xrt(rp->x, s_v1->total_height - (rp->y+rp->height)),
+                yrt(rp->x, s_v1->total_height - (rp->y+rp->height)));
+
+        fprintf(s_printfp, "%d %d lineto\n", 
+                xrt(rp->x, s_v1->total_height - rp->y),
+                yrt(rp->x, s_v1->total_height - rp->y));
+
+        fprintf(s_printfp, "stroke\n");
+    }
+
+    if ((function == TBOX_PRINT_BOXED) ||
+	(function == TBOX_PRINT_PLAIN)) {
+
+        fprintf(s_printfp, "newpath\n");
+        fprintf(s_printfp, "%d %d moveto\n", 
+                xrt(x, s_v1->total_height - (y-2)),
+                yrt(x, s_v1->total_height - (y-2)));
+        fprintf(s_printfp, "gsave\n");
+        fprintf(s_printfp, "90 rotate\n");
+        fprintf(s_printfp, "(%s) show\n", s);
+        fprintf(s_printfp, "grestore\n");
+    }
+
+    return(rp);
+}    
+
+/****************************************************************************
+* tbox - draws an optionally boxed string whose lower lefthand 
+* corner is at (x, y).  As usual, Y is backwards.
+****************************************************************************/
+
+GdkRectangle *tbox (char *s, int x, int y, enum view1_tbox_fn function)
+{
+    static GdkRectangle update_rect;
+    gint lbearing, rbearing, width, ascent, descent;
+
+    gdk_string_extents (g_font, s,
+                        &lbearing, &rbearing,
+                        &width, &ascent, &descent);
+
+    /*
+     * If we have enough room to display full size events, then just
+     * use the BOXED function instead of the EVENT function.
+     */
+    if (s_v1->strip_height > 9) {
+	switch (function) {
+	case TBOX_DRAW_EVENT:    function = TBOX_DRAW_BOXED;    break;
+	case TBOX_GETRECT_EVENT: function = TBOX_GETRECT_BOXED; break;
+	case TBOX_PRINT_EVENT:   function = TBOX_PRINT_BOXED;   break;
+	default:
+            break;
+	    /* Nothing */
+	}
+    }
+    
+    switch (function) {
+    case TBOX_DRAW_BOXED:
+        gdk_draw_rectangle (pm, da->style->white_gc, TRUE,
+                            x, y - (ascent+descent+3), width + 2, 
+                            ascent + descent + 3);
+        
+        gdk_draw_rectangle (pm, da->style->black_gc, FALSE,
+                            x, y - (ascent+descent+3), width + 2, 
+                            ascent + descent + 3);
+        
+        gdk_draw_string (pm, g_font, da->style->black_gc,
+                         x + 1, y - 1, (const gchar *)s);
+        /* NOTE FALLTHROUGH */
+    case TBOX_GETRECT_BOXED:
+        update_rect.x = x;
+        update_rect.y = y -(ascent+descent+3);
+        update_rect.width = width + 3;
+        update_rect.height = ascent + descent + 4;
+        if (function == TBOX_DRAW_BOXED)
+            gtk_widget_draw (da, &update_rect);
+        break;
+
+    case TBOX_DRAW_EVENT:
+	/* We have a small event to draw...no text */
+        gdk_draw_rectangle (pm, da->style->black_gc, FALSE,
+                            x, y - 1, 3, 3);
+        /* NOTE FALLTHROUGH */
+    case TBOX_GETRECT_EVENT:
+        update_rect.x = x;
+        update_rect.y = y - 1;
+        update_rect.width = 4;
+        update_rect.height = 4;
+        if (function == TBOX_DRAW_EVENT)
+            gtk_widget_draw (da, &update_rect);
+	break;
+		
+        
+    case TBOX_DRAW_PLAIN:
+        
+        gdk_draw_string (pm, g_font, da->style->black_gc,
+                         x + 1, y - 1, (const gchar *)s);
+        /* NOTE FALLTHROUGH */
+    case TBOX_GETRECT_PLAIN:
+        update_rect.x = x;
+        update_rect.y = y -(ascent+descent+1);
+        update_rect.width = width;
+        update_rect.height = ascent + descent;
+        if (function == TBOX_DRAW_PLAIN)
+            gtk_widget_draw (da, &update_rect);
+        break;
+
+    case TBOX_PRINT_BOXED:
+        update_rect.x = x;
+        update_rect.y = y -(ascent+descent+3);
+        update_rect.width = width + 3;
+        update_rect.height = ascent + descent + 4;
+        /* note fallthrough */
+    case TBOX_PRINT_PLAIN:
+        return(tbox_print(s, x, y, function, &update_rect));
+
+    case TBOX_PRINT_EVENT:
+	/* We have a small event box to print...no text */
+        update_rect.x = x;
+        update_rect.y = y - 1;
+        update_rect.width = 4;
+        update_rect.height = 4;
+        return(tbox_print(s, x, y, function, &update_rect));
+    }
+    return(&update_rect);
+}
+
+/****************************************************************************
+* line
+*
+* For lines there is a primitive batching facility, that doesn't update
+* the drawing area until the batch is complete. This is handy for drawing
+* the pid axis and for summary mode.
+*
+* line_batch_mode contains the state for this:
+*
+*   BATCH_OFF:      no batching, update for every line
+*   BATCH_NEW:      just entered a batch, so initialize the area to update from
+*                   scratch
+*   BATCH_EXISTING: have drawn at least one line in batch mode, so the update
+*                   area should only be expanded from now on to include the
+*                   union of the "rectangular hull" of all lines
+****************************************************************************/
+
+static enum { BATCH_OFF, BATCH_NEW, BATCH_EXISTING } line_batch_mode;
+static int line_batch_count;
+static int line_minx, line_miny, line_maxx, line_maxy;
+
+void line_batch_start (void)
+{
+    line_batch_mode = BATCH_NEW;
+    line_batch_count = 0;
+}
+
+void line_batch_end (void)
+{
+    GdkRectangle update_rect;
+    if (line_batch_count > 0) {
+        update_rect.x = line_minx;
+        update_rect.y = line_miny;
+        update_rect.width = (line_maxx - line_minx) + 1;
+        update_rect.height = (line_maxy - line_miny) + 1;
+        gtk_widget_draw (da, &update_rect);
+    }
+    line_batch_mode = BATCH_OFF;
+}
+
+void line (int x1, int y1, int x2, int y2, enum view1_line_fn function)
+{
+    GdkRectangle update_rect;
+    GdkGC *gc = NULL;
+
+    switch(function) {
+    case LINE_DRAW_BLACK:
+        gc = da->style->black_gc;
+        break;
+
+    case LINE_DRAW_WHITE:
+        gc = da->style->white_gc;
+        break;
+
+    case LINE_PRINT:
+        line_print (x1, y1, x2, y2);
+        return;
+    }
+
+    gdk_draw_line (pm, gc, x1, y1, x2, y2);
+
+    switch (line_batch_mode) {
+        case BATCH_OFF:
+            update_rect.x = x1;
+            update_rect.y = y1;
+            update_rect.width = (x2-x1) + 1;
+            update_rect.height = (y2-y1) + 1;
+            gtk_widget_draw (da, &update_rect);
+            break;
+
+        case BATCH_NEW:
+            line_minx = x1;
+            line_maxx = x2;
+            line_miny = y1;
+            line_maxy = y2;
+            line_batch_mode = BATCH_EXISTING;
+            line_batch_count = 1;
+            break;
+
+        case BATCH_EXISTING:
+            if (line_minx > x1)
+                line_minx = x1;
+            if (line_miny > y1)
+                line_miny = y1;
+            if (line_maxx < x2)
+                line_maxx = x2;
+            if (line_maxy < y2)
+                line_maxy = y2;
+            line_batch_count++;
+            break;
+    }
+}
+
+
+/****************************************************************************
+* display_pid_axis
+****************************************************************************/
+
+static void display_pid_axis(v1_geometry_t *vp)
+{
+    int y, i, label_tick;
+    int last_printed_y = -vp->strip_height;
+    pid_sort_t *pp;
+    int pid_index;
+    char *label_fmt;
+    char tmpbuf [128];    
+
+    /* No pids yet? Outta here */
+    if (g_pids == NULL)
+        return;
+
+    line_batch_start();
+
+    for (i = 0; i < vp->npids; i++) {
+        pid_index = vp->first_pid_index + i;
+        if (pid_index >= g_npids)
+            break;
+
+        set_color(pid_index);
+        pp = (g_pids + pid_index);
+
+        label_fmt = get_track_label(pp->pid_value);
+        snprintf(tmpbuf, sizeof(tmpbuf)-1, label_fmt, pp->pid_value);
+
+        y = i*vp->strip_height + vp->pid_ax_offset;
+
+	/*
+	 * Have we incremented enough space to have another label not
+	 * overlap the previous label?
+	 */
+	if (y - last_printed_y > 9) {
+	    /* Draw label */
+	    tbox(tmpbuf, 0, y +4, TBOX_DRAW_PLAIN+s_print_offset);
+
+	    last_printed_y = y;
+
+	    /*
+	     * And let the line stick out a bit more to indicate this label
+	     * relates to the following line.
+	     */
+	    label_tick = 4;
+	}
+	else {
+	    label_tick = 0;
+	}
+
+        /* Draw axis line, but only if the lines aren't too close together */
+	if (vp->strip_height > 4) {
+	    line(vp->pid_ax_width - label_tick, y+4*s_print_offset,
+		 vp->total_width, y+4*s_print_offset,
+		 LINE_DRAW_BLACK+s_print_offset);
+	}
+    }
+
+    set_color(COLOR_DEFAULT);
+    line_batch_end();
+}
+
+/****************************************************************************
+* view1_read_events_callback
+* New event data just showed up, reset a few things.
+****************************************************************************/
+
+void view1_read_events_callback(void)
+{
+    int max_vis_index;
+
+    s_v1->first_pid_index = 0;
+
+    max_vis_index = 300;
+    if (max_vis_index > g_nevents)
+        max_vis_index = g_nevents-1;
+    
+    s_v1->minvistime = 0LL;
+    s_v1->maxvistime = (g_events[g_nevents - 1].time * 9)/ 8;
+    s_srchindex = 0;
+    s_srchcode = 0;
+    s_last_selected_event = 0;
+
+    init_track_colors();
+
+    recompute_hscrollbar();
+    recompute_vscrollbar();
+}
+
+/****************************************************************************
+* display_event_data
+****************************************************************************/
+
+static void display_event_data(v1_geometry_t *vp)
+{
+    int start_index;
+    int pid_index;
+    int x, y;
+    event_t *ep;
+    event_def_t *edp;
+    double time_per_pixel;
+    char tmpbuf[1024];
+    GdkRectangle *print_rect;
+    int *last_x_used;
+
+    /* Happens if one loads the event def header first, for example. */
+    if (g_nevents == 0)
+        return;
+
+    time_per_pixel = dtime_per_pixel(vp);
+
+    start_index = find_event_index (vp->minvistime);
+
+    /* Scrolled too far right? */
+    if (start_index >= g_nevents)
+        return;
+
+    ep = (g_events + start_index);
+
+    if (s_print_offset || summary_mode) {
+        last_x_used = (int *)g_malloc0(vp->npids * sizeof(int));
+    } else {
+        last_x_used = NULL;
+    }
+
+    line_batch_start();
+
+    while (ep < (g_events + g_nevents) &&
+           (ep->time < vp->maxvistime)) {
+        pid_index = ep->pid->pid_index;
+        set_color(pid_index);
+    
+        /* First filter: pid out of range */
+        if ((pid_index < vp->first_pid_index) ||
+            (pid_index >= vp->first_pid_index + vp->npids)) {
+            ep++;
+            continue;
+        }
+
+        /* Second filter: event hidden */
+        edp = find_event_definition (ep->code);
+        if (!edp->selected) {
+            ep++;
+            continue;
+        }
+        
+        /* Display it... */
+
+        pid_index -= vp->first_pid_index;
+        
+        y = pid_index*vp->strip_height + vp->event_offset;
+        
+        x = vp->pid_ax_width + 
+            (int)(((double)(ep->time - vp->minvistime)) / time_per_pixel);
+
+        if (last_x_used != NULL && x < last_x_used[pid_index]) {
+            ep++;
+            continue;
+        }
+
+        if (ep->flags & (EVENT_FLAG_SELECT | EVENT_FLAG_SEARCHRSLT)) {
+            if (ep->flags & EVENT_FLAG_SELECT) {
+                format_popbox_string(tmpbuf, sizeof(tmpbuf), ep, edp);
+#ifdef NOTDEF
+                sprintf(tmpbuf, edp->name);
+                sprintf(tmpbuf+strlen(tmpbuf), ": ");
+                sprintf(tmpbuf+strlen(tmpbuf), edp->format, ep->datum);
+#endif
+            } else {
+                sprintf(tmpbuf, "SEARCH RESULT");
+            }
+            print_rect = tbox(tmpbuf, x, y - vp->pop_offset, 
+                              TBOX_DRAW_BOXED+s_print_offset);
+            line(x, y-vp->pop_offset, x, y, LINE_DRAW_BLACK+s_print_offset);
+            if (last_x_used != NULL)
+                last_x_used[pid_index] = x + print_rect->width;
+        } 
+        if (summary_mode) {
+            int delta = vp->strip_height / 3;
+            if (delta < 1)
+                delta = 1;
+            y = pid_index*vp->strip_height + vp->pid_ax_offset;
+            line(x, y - delta, x, y + delta, LINE_DRAW_BLACK);
+            last_x_used[pid_index] = x + 1;
+        } else {
+            sprintf(tmpbuf, "%ld", ep->code);
+            print_rect = tbox(tmpbuf, x, y, TBOX_DRAW_EVENT+s_print_offset);
+            if (last_x_used != NULL)
+                last_x_used[pid_index] = x + print_rect->width;
+        }
+
+        ep++;
+    }
+    if (last_x_used)
+        g_free(last_x_used);
+    line_batch_end();
+    set_color(COLOR_DEFAULT);
+}
+
+/****************************************************************************
+* display_clear
+****************************************************************************/
+
+static void display_clear(void)
+{
+    GdkRectangle update_rect;
+
+    gdk_draw_rectangle (pm, da->style->white_gc, TRUE,
+                        0, 0, da->allocation.width,
+                        da->allocation.height);
+
+    update_rect.x = 0;
+    update_rect.y = 0;
+    update_rect.width = da->allocation.width;
+    update_rect.height = da->allocation.height;
+
+    gtk_widget_draw (da, &update_rect);
+}
+
+/****************************************************************************
+* display_time_axis
+****************************************************************************/
+
+static void display_time_axis(v1_geometry_t *vp)
+{
+    int x, y, i;
+    int xoffset, nticks;
+    char tmpbuf [128];
+    double unit_divisor;
+    double time;
+    char *units;
+    double time_per_pixel;
+
+    y = vp->npids * vp->strip_height + vp->pid_ax_offset;
+
+    x = vp->pid_ax_width;
+
+    nticks = (vp->total_width - vp->pid_ax_width) / vp->time_ax_spacing;
+
+    time_per_pixel = dtime_per_pixel(vp);
+
+    units = "ns";
+    unit_divisor = 1.00;
+        
+    if ((vp->maxvistime / unit_divisor) > 1000) {
+        units = "us";
+        unit_divisor = 1000.00;
+    }
+
+    if ((vp->maxvistime / unit_divisor) > 1000) {
+        units = "ms";
+        unit_divisor = 1000.00*1000.00;
+    }
+    if ((vp->maxvistime / unit_divisor) > 1000) {
+        units = "s";
+        unit_divisor = 1000.00*1000.00*1000.00;
+    }
+
+    /* Draw line */
+    line(x, y, vp->total_width, y, LINE_DRAW_BLACK+s_print_offset);
+
+    xoffset = 0;
+    
+    for (i = 0; i < nticks; i++) {
+        /* Tick mark */
+        line(x+xoffset, y-3, x+xoffset, y+3, LINE_DRAW_BLACK+s_print_offset);
+
+        time = (double)(x + xoffset - vp->pid_ax_width);
+        time *= time_per_pixel;
+        time += (double)(vp->minvistime);
+        time /= unit_divisor;
+
+        sprintf (tmpbuf, "%.2f%s", time, units);
+
+        tbox(tmpbuf, x+xoffset, y+15, TBOX_DRAW_PLAIN+s_print_offset);
+        
+        xoffset += vp->time_ax_spacing;
+    }
+}
+
+/****************************************************************************
+* clear_scoreboard
+* Forget about any temporary displays, they're gone now...
+****************************************************************************/
+
+static void clear_scoreboard(void)
+{
+    s_result_up = FALSE;
+}
+
+/****************************************************************************
+* view1_display
+****************************************************************************/
+
+void view1_display(void)
+{
+    display_clear();
+    display_pid_axis(s_v1);
+    display_event_data(s_v1);
+    display_time_axis(s_v1);
+    clear_scoreboard();
+}
+
+static gint idle_tag;
+
+/****************************************************************************
+* view1_display_eventually
+****************************************************************************/
+
+static void view1_display_eventually(void)
+{
+    gtk_idle_remove(idle_tag);
+    idle_tag = 0;
+    view1_display();
+}
+
+
+/****************************************************************************
+* view1_display_when_idle
+****************************************************************************/
+
+void view1_display_when_idle(void)
+{
+    if (idle_tag == 0) {
+        idle_tag = gtk_idle_add((GtkFunction) view1_display_eventually, 0);
+    }
+}
+
+/****************************************************************************
+* view1_about
+****************************************************************************/
+
+void view1_about (char *tmpbuf)
+{
+    int nsnaps;
+    snapshot_t *snaps;
+
+    sprintf(tmpbuf+strlen(tmpbuf), "Minvistime %lld\nMaxvistime %lld\n",
+            s_v1->minvistime, s_v1->maxvistime);
+    sprintf(tmpbuf+strlen(tmpbuf), "Strip Height %d\n", 
+            s_v1->strip_height);
+
+    for (nsnaps = 0, snaps = s_snapshots; snaps; snaps = snaps->next) {
+        nsnaps++;
+    }
+    sprintf(tmpbuf+strlen(tmpbuf), "%d snapshots in the ring\n", nsnaps);
+}