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wireshark/gtk/proto_draw.c

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/* proto_draw.c
* Routines for GTK+ packet display
*
* $Id: proto_draw.c,v 1.21 2000/09/09 10:26:56 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <ctype.h>
#include <stdarg.h>
#include <gtk/gtk.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include <stdio.h>
#include "main.h"
#include "packet.h"
#include "util.h"
#include "prefs.h"
#include "proto_draw.h"
#include "packet_win.h"
#include "gtkglobals.h"
#define BYTE_VIEW_WIDTH 16
#define BYTE_VIEW_SEP 8
extern GdkFont *m_r_font, *m_b_font;
static void
proto_tree_draw_node(GNode *node, gpointer data);
/* Redraw a given byte view window. */
void
redraw_hex_dump(GtkWidget *bv, guint8 *pd, frame_data *fd, field_info *finfo)
{
packet_hex_print(GTK_TEXT(bv), pd, fd, finfo);
}
void
redraw_hex_dump_all(void)
{
if (cfile.current_frame != NULL)
redraw_hex_dump(byte_view, cfile.pd, cfile.current_frame, finfo_selected);
redraw_hex_dump_packet_wins();
}
void
create_byte_view(gint bv_size, GtkWidget *pane, GtkWidget **byte_view_p,
GtkWidget **bv_scrollw_p, int pos)
{
GtkWidget *byte_view, *byte_scrollw;
/* Byte view. Create a scrolled window for the text. */
byte_scrollw = gtk_scrolled_window_new(NULL, NULL);
gtk_paned_pack2(GTK_PANED(pane), byte_scrollw, FALSE, FALSE);
gtk_widget_set_usize(byte_scrollw, -1, bv_size);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(byte_scrollw),
GTK_POLICY_NEVER,
GTK_POLICY_ALWAYS);
set_scrollbar_placement_scrollw(byte_scrollw, pos);
remember_scrolled_window(byte_scrollw);
gtk_widget_show(byte_scrollw);
byte_view = gtk_text_new(NULL, NULL);
gtk_text_set_editable(GTK_TEXT(byte_view), FALSE);
gtk_text_set_word_wrap(GTK_TEXT(byte_view), FALSE);
gtk_container_add(GTK_CONTAINER(byte_scrollw), byte_view);
gtk_widget_show(byte_view);
*byte_view_p = byte_view;
*bv_scrollw_p = byte_scrollw;
}
void
packet_hex_print(GtkText *bv, guint8 *pd, frame_data *fd, field_info *finfo)
{
gint i = 0, j, k, cur;
guchar line[128], hexchars[] = "0123456789abcdef", c = '\0';
GdkFont *cur_font, *new_font;
gint bstart, blen;
gint bend = -1;
GdkColor *fg, *bg;
gboolean reverse, newreverse;
if (finfo != NULL) {
bstart = finfo->start;
blen = finfo->length;
} else {
bstart = -1;
blen = -1;
}
/* Freeze the text for faster display */
gtk_text_freeze(bv);
/* Clear out the text */
gtk_text_set_point(bv, 0);
/* Keep GTK+ 1.2.3 through 1.2.6 from dumping core - see
http://ethereal.zing.org/lists/ethereal-dev/199912/msg00312.html and
http://www.gnome.org/mailing-lists/archives/gtk-devel-list/1999-October/0051.shtml
for more information */
gtk_adjustment_set_value(bv->vadj, 0.0);
gtk_text_forward_delete(bv, gtk_text_get_length(bv));
if (bstart >= 0 && blen >= 0) {
bend = bstart + blen;
}
while (i < fd->cap_len) {
/* Print the line number */
sprintf(line, "%04x ", i);
/* Display with inverse video ? */
if (prefs.gui_hex_dump_highlight_style) {
gtk_text_insert(bv, m_r_font, &BLACK, &WHITE, line, -1);
/* Do we start in reverse? */
reverse = i >= bstart && i < bend;
fg = reverse ? &WHITE : &BLACK;
bg = reverse ? &BLACK : &WHITE;
j = i;
k = i + BYTE_VIEW_WIDTH;
cur = 0;
/* Print the hex bit */
while (i < k) {
if (i < fd->cap_len) {
line[cur++] = hexchars[(pd[i] & 0xf0) >> 4];
line[cur++] = hexchars[pd[i] & 0x0f];
} else {
line[cur++] = ' '; line[cur++] = ' ';
}
i++;
newreverse = i >= bstart && i < bend;
/* Have we gone from reverse to plain? */
if (reverse && (reverse != newreverse)) {
gtk_text_insert(bv, m_r_font, fg, bg, line, cur);
fg = &BLACK;
bg = &WHITE;
cur = 0;
}
/* Inter byte space if not at end of line */
if (i < k) {
line[cur++] = ' ';
/* insert a space every BYTE_VIEW_SEP bytes */
if( ( i % BYTE_VIEW_SEP ) == 0 ) {
line[cur++] = ' ';
}
}
/* Have we gone from plain to reversed? */
if (!reverse && (reverse != newreverse)) {
gtk_text_insert(bv, m_r_font, fg, bg, line, cur);
fg = &WHITE;
bg = &BLACK;
cur = 0;
}
reverse = newreverse;
}
/* Print remaining part of line */
gtk_text_insert(bv, m_r_font, fg, bg, line, cur);
cur = 0;
/* Print some space at the end of the line */
line[cur++] = ' '; line[cur++] = ' '; line[cur++] = ' ';
gtk_text_insert(bv, m_r_font, &BLACK, &WHITE, line, cur);
cur = 0;
/* Print the ASCII bit */
i = j;
/* Do we start in reverse? */
reverse = i >= bstart && i < bend;
fg = reverse ? &WHITE : &BLACK;
bg = reverse ? &BLACK : &WHITE;
while (i < k) {
if (i < fd->cap_len) {
if (fd->flags.encoding == CHAR_ASCII) {
c = pd[i];
}
else if (fd->flags.encoding == CHAR_EBCDIC) {
c = EBCDIC_to_ASCII1(pd[i]);
}
else {
g_assert_not_reached();
}
line[cur++] = (isprint(c)) ? c : '.';
} else {
line[cur++] = ' ';
}
i++;
newreverse = i >= bstart && i < bend;
/* Have we gone from reverse to plain? */
if (reverse && (reverse != newreverse)) {
gtk_text_insert(bv, m_r_font, fg, bg, line, cur);
fg = &BLACK;
bg = &WHITE;
cur = 0;
}
if (i < k) {
/* insert a space every BYTE_VIEW_SEP bytes */
if( ( i % BYTE_VIEW_SEP ) == 0 ) {
line[cur++] = ' ';
}
}
/* Have we gone from plain to reversed? */
if (!reverse && (reverse != newreverse)) {
gtk_text_insert(bv, m_r_font, fg, bg, line, cur);
fg = &WHITE;
bg = &BLACK;
cur = 0;
}
reverse = newreverse;
}
/* Print remaining part of line */
gtk_text_insert(bv, m_r_font, fg, bg, line, cur);
cur = 0;
line[cur++] = '\n';
line[cur] = '\0';
gtk_text_insert(bv, m_r_font, &BLACK, &WHITE, line, -1);
}
else {
gtk_text_insert(bv, m_r_font, NULL, NULL, line, -1);
/* Do we start in bold? */
cur_font = (i >= bstart && i < bend) ? m_b_font : m_r_font;
j = i;
k = i + BYTE_VIEW_WIDTH;
cur = 0;
/* Print the hex bit */
while (i < k) {
if (i < fd->cap_len) {
line[cur++] = hexchars[(pd[i] & 0xf0) >> 4];
line[cur++] = hexchars[pd[i] & 0x0f];
} else {
line[cur++] = ' '; line[cur++] = ' ';
}
line[cur++] = ' ';
i++;
/* insert a space every BYTE_VIEW_SEP bytes */
if( ( i % BYTE_VIEW_SEP ) == 0 ) line[cur++] = ' ';
/* Did we cross a bold/plain boundary? */
new_font = (i >= bstart && i < bend) ? m_b_font : m_r_font;
if (cur_font != new_font) {
gtk_text_insert(bv, cur_font, NULL, NULL, line, cur);
cur_font = new_font;
cur = 0;
}
}
line[cur++] = ' ';
gtk_text_insert(bv, cur_font, NULL, NULL, line, cur);
cur = 0;
i = j;
/* Print the ASCII bit */
cur_font = (i >= bstart && i < bend) ? m_b_font : m_r_font;
while (i < k) {
if (i < fd->cap_len) {
if (fd->flags.encoding == CHAR_ASCII) {
c = pd[i];
}
else if (fd->flags.encoding == CHAR_EBCDIC) {
c = EBCDIC_to_ASCII1(pd[i]);
}
else {
g_assert_not_reached();
}
line[cur++] = (isprint(c)) ? c : '.';
} else {
line[cur++] = ' ';
}
i++;
/* insert a space every BYTE_VIEW_SEP bytes */
if( ( i % BYTE_VIEW_SEP ) == 0 ) line[cur++] = ' ';
/* Did we cross a bold/plain boundary? */
new_font = (i >= bstart && i < bend) ? m_b_font : m_r_font;
if (cur_font != new_font) {
gtk_text_insert(bv, cur_font, NULL, NULL, line, cur);
cur_font = new_font;
cur = 0;
}
}
line[cur++] = '\n';
line[cur] = '\0';
gtk_text_insert(bv, cur_font, NULL, NULL, line, -1);
}
}
/* scroll text into position */
gtk_text_thaw(bv); /* must thaw before adjusting scroll bars */
if ( bstart > 0 ) {
int lineheight, linenum;
float scrollval;
linenum = bstart / BYTE_VIEW_WIDTH;
/* need to change to some way of getting that offset instead of +4 */
lineheight = gdk_string_height(m_b_font, "0") + 4;
scrollval = MIN(linenum * lineheight,bv->vadj->upper - bv->vadj->page_size);
gtk_adjustment_set_value(bv->vadj, scrollval);
}
}
/* List of all protocol tree widgets, so we can globally set the selection
mode, line style, expander style, and font of all of them. */
static GList *ptree_widgets;
/* Add a protocol tree widget to the list of protocol tree widgets. */
static void forget_ptree_widget(GtkWidget *ptreew, gpointer data);
static void
remember_ptree_widget(GtkWidget *ptreew)
{
ptree_widgets = g_list_append(ptree_widgets, ptreew);
/* Catch the "destroy" event on the widget, so that we remove it from
the list when it's destroyed. */
gtk_signal_connect(GTK_OBJECT(ptreew), "destroy",
GTK_SIGNAL_FUNC(forget_ptree_widget), NULL);
}
/* Remove a protocol tree widget from the list of protocol tree widgets. */
static void
forget_ptree_widget(GtkWidget *ptreew, gpointer data)
{
ptree_widgets = g_list_remove(ptree_widgets, ptreew);
}
/* Set the selection mode of a given packet tree window. */
static void
set_ptree_sel_browse(GtkWidget *ptreew, gboolean val)
{
/* Yeah, GTK uses "browse" in the case where we do not, but oh well.
I think "browse" in Ethereal makes more sense than "SINGLE" in
GTK+ */
if (val) {
gtk_clist_set_selection_mode(GTK_CLIST(ptreew),
GTK_SELECTION_SINGLE);
}
else {
gtk_clist_set_selection_mode(GTK_CLIST(ptreew),
GTK_SELECTION_BROWSE);
}
}
static void
set_ptree_sel_browse_cb(gpointer data, gpointer user_data)
{
set_ptree_sel_browse((GtkWidget *)data, *(gboolean *)user_data);
}
/* Set the selection mode of all packet tree windows. */
void
set_ptree_sel_browse_all(gboolean val)
{
g_list_foreach(ptree_widgets, set_ptree_sel_browse_cb, &val);
}
/* Set the line style of a given packet tree window. */
static void
set_ptree_line_style(GtkWidget *ptreew, gint style)
{
/* I'm using an assert here since the preferences code limits
* the user input, both in the GUI and when reading the preferences file.
* If the value is incorrect, it's a program error, not a user-initiated error.
*/
g_assert(style >= GTK_CTREE_LINES_NONE && style <= GTK_CTREE_LINES_TABBED);
gtk_ctree_set_line_style(GTK_CTREE(ptreew), style);
}
static void
set_ptree_line_style_cb(gpointer data, gpointer user_data)
{
set_ptree_line_style((GtkWidget *)data, *(gint *)user_data);
}
/* Set the line style of all packet tree window. */
void
set_ptree_line_style_all(gint style)
{
g_list_foreach(ptree_widgets, set_ptree_line_style_cb, &style);
}
/* Set the expander style of a given packet tree window. */
static void
set_ptree_expander_style(GtkWidget *ptreew, gint style)
{
/* I'm using an assert here since the preferences code limits
* the user input, both in the GUI and when reading the preferences file.
* If the value is incorrect, it's a program error, not a user-initiated error.
*/
g_assert(style >= GTK_CTREE_EXPANDER_NONE && style <= GTK_CTREE_EXPANDER_CIRCULAR);
gtk_ctree_set_expander_style(GTK_CTREE(ptreew), style);
}
static void
set_ptree_expander_style_cb(gpointer data, gpointer user_data)
{
set_ptree_expander_style((GtkWidget *)data, *(gint *)user_data);
}
void
set_ptree_expander_style_all(gint style)
{
g_list_foreach(ptree_widgets, set_ptree_expander_style_cb, &style);
}
static void
set_ptree_style_cb(gpointer data, gpointer user_data)
{
gtk_widget_set_style((GtkWidget *)data, (GtkStyle *)user_data);
}
void
set_ptree_font_all(GdkFont *font)
{
GtkStyle *style;
style = gtk_style_new();
gdk_font_unref(style->font);
style->font = font;
gdk_font_ref(font);
g_list_foreach(ptree_widgets, set_ptree_style_cb, style);
/* Now nuke the old style and replace it with the new one. */
gtk_style_unref(item_style);
item_style = style;
}
void
create_tree_view(gint tv_size, e_prefs *prefs, GtkWidget *pane,
GtkWidget **tv_scrollw_p, GtkWidget **tree_view_p, int pos)
{
GtkWidget *tv_scrollw, *tree_view;
/* Tree view */
tv_scrollw = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW(tv_scrollw),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
set_scrollbar_placement_scrollw(tv_scrollw, pos);
remember_scrolled_window(tv_scrollw);
gtk_paned_pack1(GTK_PANED(pane), tv_scrollw, TRUE, TRUE);
gtk_widget_set_usize(tv_scrollw, -1, tv_size);
gtk_widget_show(tv_scrollw);
tree_view = gtk_ctree_new(1, 0);
/* I need this next line to make the widget work correctly with hidden
* column titles and GTK_SELECTION_BROWSE */
gtk_clist_set_column_auto_resize( GTK_CLIST(tree_view), 0, TRUE );
gtk_container_add( GTK_CONTAINER(tv_scrollw), tree_view );
set_ptree_sel_browse(tree_view, prefs->gui_ptree_sel_browse);
set_ptree_line_style(tree_view, prefs->gui_ptree_line_style);
set_ptree_expander_style(tree_view, prefs->gui_ptree_expander_style);
gtk_widget_set_style(tree_view, item_style);
remember_ptree_widget(tree_view);
*tree_view_p = tree_view;
*tv_scrollw_p = tv_scrollw;
}
void expand_all_tree(proto_tree *protocol_tree, GtkWidget *tree_view) {
int i;
for(i=0; i < num_tree_types; i++) {
tree_is_expanded[i] = TRUE;
}
gtk_clist_clear ( GTK_CLIST(tree_view) );
proto_tree_draw(protocol_tree, tree_view);
gtk_ctree_expand_recursive(GTK_CTREE(tree_view), NULL);
}
void collapse_all_tree(proto_tree *protocol_tree, GtkWidget *tree_view) {
int i;
for(i=0; i < num_tree_types; i++) {
tree_is_expanded[i] = FALSE;
}
gtk_clist_clear ( GTK_CLIST(tree_view) );
proto_tree_draw(protocol_tree, tree_view);
}
static void
expand_tree(GtkCTree *ctree, GList *node, gpointer user_data)
{
field_info *finfo;
gboolean *val;
finfo = gtk_ctree_node_get_row_data( ctree, GTK_CTREE_NODE(node) );
g_assert(finfo);
val = &tree_is_expanded[finfo->tree_type];
*val = TRUE;
}
static void
collapse_tree(GtkCTree *ctree, GList *node, gpointer user_data)
{
field_info *finfo;
gboolean *val;
finfo = gtk_ctree_node_get_row_data( ctree, GTK_CTREE_NODE(node) );
g_assert(finfo);
val = &tree_is_expanded[finfo->tree_type];
*val = FALSE;
}
struct proto_tree_draw_info {
GtkCTree *ctree;
GtkCTreeNode *ctree_node;
};
void
proto_tree_draw(proto_tree *protocol_tree, GtkWidget *tree_view)
{
struct proto_tree_draw_info info;
info.ctree = GTK_CTREE(tree_view);
info.ctree_node = NULL;
gtk_clist_freeze ( GTK_CLIST(tree_view) );
g_node_children_foreach((GNode*) protocol_tree, G_TRAVERSE_ALL,
proto_tree_draw_node, &info);
gtk_signal_connect( GTK_OBJECT(info.ctree), "tree-expand",
(GtkSignalFunc) expand_tree, NULL );
gtk_signal_connect( GTK_OBJECT(info.ctree), "tree-collapse",
(GtkSignalFunc) collapse_tree, NULL );
gtk_clist_thaw ( GTK_CLIST(tree_view) );
}
static void
proto_tree_draw_node(GNode *node, gpointer data)
{
struct proto_tree_draw_info info;
struct proto_tree_draw_info *parent_info = (struct proto_tree_draw_info*) data;
field_info *fi = (field_info*) (node->data);
gchar label_str[ITEM_LABEL_LENGTH];
gchar *label_ptr;
GtkCTreeNode *parent;
gboolean is_leaf, is_expanded;
if (!fi->visible)
return;
/* was a free format label produced? */
if (fi->representation) {
label_ptr = fi->representation;
}
else { /* no, make a generic label */
label_ptr = label_str;
proto_item_fill_label(fi, label_str);
}
if (g_node_n_children(node) > 0) {
is_leaf = FALSE;
if (tree_is_expanded[fi->tree_type]) {
is_expanded = TRUE;
}
else {
is_expanded = FALSE;
}
}
else {
is_leaf = TRUE;
is_expanded = FALSE;
}
info.ctree = parent_info->ctree;
parent = gtk_ctree_insert_node ( info.ctree, parent_info->ctree_node, NULL,
&label_ptr, 5, NULL, NULL, NULL, NULL,
is_leaf, is_expanded );
gtk_ctree_node_set_row_data( GTK_CTREE(info.ctree), parent, fi );
if (!is_leaf) {
info.ctree_node = parent;
g_node_children_foreach(node, G_TRAVERSE_ALL,
proto_tree_draw_node, &info);
}
}
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