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wireshark/gtk/proto_draw.c

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/* gtkpacket.c
* Routines for GTK+ packet display
*
* $Id: proto_draw.c,v 1.14 2000/02/29 06:24:40 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 "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);
void
create_byte_view(gint bv_size, GtkWidget *pane, GtkWidget **byte_view_p,
GtkWidget **bv_vscroll_left_p, GtkWidget **bv_vscroll_right_p)
{
GtkWidget *bv_table, *byte_view, *bv_vscroll_left, *bv_vscroll_right;
/* Byte view. The table is only one row high, but 3 columns
* wide. The middle column contains the GtkText with the hex dump.
* The left and right columns contain vertical scrollbars. They both
* do the same thing, but only one will be shown at a time, in accordance
* with where the user wants the other vertical scrollbars places
* (on the left or the right).
*/
bv_table = gtk_table_new (1, 3, FALSE);
gtk_paned_pack2(GTK_PANED(pane), bv_table, FALSE, FALSE);
gtk_widget_set_usize(bv_table, -1, bv_size);
gtk_widget_show(bv_table);
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_table_attach (GTK_TABLE (bv_table), byte_view, 1, 2, 0, 1,
GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 0);
gtk_widget_show(byte_view);
/* The gtk_text widget doesn't scroll horizontally (see gtktext.c)
* in the GTK+ distribution, so I removed the horizontal scroll bar
* that used to be here. I tried the gtk_text widget with a
* gtk_scrolled_window w/ viewport, but the vertical scrolling
* did not work well, and sometimes a few pixels were cut off on
* the bottom. */
bv_vscroll_left = gtk_vscrollbar_new(GTK_TEXT(byte_view)->vadj);
gtk_table_attach(GTK_TABLE(bv_table), bv_vscroll_left, 0, 1, 0, 1,
GTK_FILL, GTK_EXPAND | GTK_FILL | GTK_SHRINK, 0, 0);
bv_vscroll_right = gtk_vscrollbar_new(GTK_TEXT(byte_view)->vadj);
gtk_table_attach(GTK_TABLE(bv_table), bv_vscroll_right, 2, 3, 0, 1,
GTK_FILL, GTK_EXPAND | GTK_FILL | GTK_SHRINK, 0, 0);
*byte_view_p = byte_view;
*bv_vscroll_left_p = bv_vscroll_left;
*bv_vscroll_right_p = bv_vscroll_right;
}
void
packet_hex_print(GtkText *bv, guint8 *pd, gint len, gint bstart, gint blen,
char_enc encoding) {
gint i = 0, j, k, cur;
gchar line[128], hexchars[] = "0123456789abcdef", c = '\0';
GdkFont *cur_font, *new_font;
gint bend = -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 < len) {
/* Print the line number */
sprintf(line, "%04x ", i);
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 < 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 < len) {
if (encoding == CHAR_ASCII) {
c = pd[i];
}
else if (encoding == CHAR_EBCDIC) {
c = EBCDIC_to_ASCII1(pd[i]);
}
else {
g_assert_not_reached();
}
line[cur++] = (isgraph(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);
}
}
void
create_tree_view(gint tv_size, e_prefs *prefs, GtkWidget *pane,
GtkWidget **tv_scrollw_p, GtkWidget **tree_view_p)
{
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);
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);
*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 );
gtk_ctree_node_set_row_style( GTK_CTREE(info.ctree), parent, item_style);
if (!is_leaf) {
info.ctree_node = parent;
g_node_children_foreach(node, G_TRAVERSE_ALL,
proto_tree_draw_node, &info);
}
}
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