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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 1.45 2002/01/21 07:37:42 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* Jeff Foster, 2001/03/12, added support for displaying named
* data sources as tabbed hex windows
*
* 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>
#include <gdk/gdkkeysyms.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include <stdio.h>
#include <string.h>
#include "main.h"
#include <epan/packet.h>
#include "util.h"
#include "menu.h"
#include "keys.h"
#include "colors.h"
#include "prefs.h"
#include "proto_draw.h"
#include "packet_win.h"
#include "ui_util.h"
#include "gtkglobals.h"
#define BYTE_VIEW_WIDTH 16
#define BYTE_VIEW_SEP 8
static void
proto_tree_draw_node(GNode *node, gpointer data);
GtkWidget*
get_notebook_bv_ptr( GtkWidget *nb_ptr){
/* Get the current text window for the notebook */
return gtk_object_get_data(GTK_OBJECT(nb_ptr), E_BYTE_VIEW_TEXT_INFO_KEY);
}
int get_byte_view_data( GtkWidget *byte_view_notebook, guint8 **data_ptr) {
/* get the data pointer and data length for a hex window */
/* return the length of the data or -1 on error */
GtkWidget *byte_view = get_notebook_bv_ptr( byte_view_notebook);
if ( !byte_view)
return -1;
if ((*data_ptr = gtk_object_get_data(GTK_OBJECT(byte_view), E_BYTE_VIEW_DATA_PTR_KEY)))
return GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(byte_view),
E_BYTE_VIEW_DATA_LEN_KEY));
return -1;
}
int get_byte_view_and_data( GtkWidget *byte_view_notebook, GtkWidget **byte_view, guint8 **data_ptr) {
/* Get both byte_view widget pointer and the data pointer */
/* return the data length or -1 if error */
*byte_view = get_notebook_bv_ptr( byte_view_notebook);
if ( *byte_view)
return get_byte_view_data( byte_view_notebook, data_ptr);
return -1;
}
void
set_notebook_page( GtkWidget *nb_ptr, int num){
/* Set the current text window for the notebook and set the */
/* text window pointer storage */
GtkWidget* child;
gtk_notebook_set_page ( GTK_NOTEBOOK( nb_ptr), num);
child = gtk_notebook_get_nth_page( GTK_NOTEBOOK(nb_ptr), num);
child = gtk_object_get_data(GTK_OBJECT(child), E_BYTE_VIEW_TEXT_INFO_KEY);
gtk_object_set_data(GTK_OBJECT(nb_ptr), E_BYTE_VIEW_TEXT_INFO_KEY, child);
}
int find_notebook_page( GtkWidget *nb_ptr, gchar *label){
/* find the notebook page number for this label */
int i = -1;
gchar *ptr;
GtkWidget* child;
while(( child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(nb_ptr), ++i))){
child = gtk_notebook_get_tab_label(GTK_NOTEBOOK(nb_ptr), child);
gtk_notebook_get_tab_label(GTK_NOTEBOOK(nb_ptr), child);
gtk_label_get(GTK_LABEL(child), &ptr);
if (!strcmp( label, ptr))
return i;
}
return -1;
}
/* Redraw a given byte view window. */
void
redraw_hex_dump(GtkWidget *nb, frame_data *fd, field_info *finfo)
{
GtkWidget* bv;
guint8* data;
int len;
len = get_byte_view_and_data( byte_nb_ptr, &bv, &data);
if ( bv)
packet_hex_print(GTK_TEXT(bv), data, fd, finfo, len);
}
void
redraw_hex_dump_all(void)
{
if (cfile.current_frame != NULL)
redraw_hex_dump( byte_nb_ptr, cfile.current_frame, finfo_selected);
redraw_hex_dump_packet_wins();
}
static void
expand_tree(GtkCTree *ctree, GtkCTreeNode *node, gpointer user_data)
{
field_info *finfo;
gboolean *val;
finfo = gtk_ctree_node_get_row_data( ctree, node);
g_assert(finfo);
val = &tree_is_expanded[finfo->tree_type];
*val = TRUE;
}
static void
collapse_tree(GtkCTree *ctree, GtkCTreeNode *node, gpointer user_data)
{
field_info *finfo;
gboolean *val;
finfo = gtk_ctree_node_get_row_data( ctree, node);
g_assert(finfo);
val = &tree_is_expanded[finfo->tree_type];
*val = FALSE;
}
static void
toggle_tree(GtkCTree *ctree, GdkEventKey *event, gpointer user_data)
{
if (event->keyval != GDK_Return)
return;
gtk_ctree_toggle_expansion(ctree, GTK_CTREE_NODE(ctree->clist.selection->data));
}
/* Which byte the offset is referring to. Associates
* whitespace with the preceding digits. */
static int
byte_num(int offset, int start_point)
{
return (offset - start_point) / 3;
}
/* If the user selected a certain byte in the byte view, try to find
* the item in the GUI proto_tree that corresponds to that byte, and
* select it. */
static gint
byte_view_select(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
proto_tree *tree = gtk_object_get_data(GTK_OBJECT(widget),
E_BYTE_VIEW_TREE_PTR);
GtkWidget *tree_view =
gtk_object_get_data(GTK_OBJECT(widget),
E_BYTE_VIEW_TREE_VIEW_PTR);
GtkCTree *ctree = GTK_CTREE(tree_view);
GtkCTreeNode *node, *parent;
field_info *finfo;
GtkText *bv = GTK_TEXT(widget);
int row, column;
int byte;
gchar *name;
/* The column of the first hex digit in the first half */
const int digits_start_1 = 6;
/* The column of the last hex digit in the first half. */
const int digits_end_1 = 28;
/* The column of the first hex digit in the second half */
const int digits_start_2 = 31;
/* The column of the last hex digit in the second half. */
const int digits_end_2 = 53;
/* The column of the first "text dump" character in first half. */
const int text_start_1 = 57;
/* The column of the last "text dump" character in first half. */
const int text_end_1 = 64;
/* The column of the first "text dump" character in second half. */
const int text_start_2 = 66;
/* The column of the last "text dump" character in second half. */
const int text_end_2 = 73;
/* Given the mouse (x,y) and the current GtkText (h,v)
* adjustments, and the size of the font, figure out
* which text column/row the user selected. This could be off
* if the bold version of the font is bigger than the
* regular version of the font. */
column = (bv->hadj->value + event->x) / m_font_width;
row = (bv->vadj->value + event->y) / m_font_height;
/* Given the column and row, determine which byte offset
* the user clicked on. */
if (column >= digits_start_1 && column <= digits_end_1) {
byte = byte_num(column, digits_start_1);
if (byte == -1) {
return FALSE;
}
}
else if (column >= digits_start_2 && column <= digits_end_2) {
byte = byte_num(column, digits_start_2);
if (byte == -1) {
return FALSE;
}
byte += 8;
}
else if (column >= text_start_1 && column <= text_end_1) {
byte = column - text_start_1;
}
else if (column >= text_start_2 && column <= text_end_2) {
byte = 8 + column - text_start_2;
}
else {
/* The user didn't select a hex digit or
* text-dump character. */
return FALSE;
}
/* Add the number of bytes from the previous rows. */
byte += row * 16;
/* Get the data source name */
name = gtk_object_get_data(GTK_OBJECT(widget), E_BYTE_VIEW_NAME_KEY);
/* Find the finfo that corresponds to our byte. */
finfo = proto_find_field_from_offset(tree, byte, name);
if (!finfo) {
return FALSE;
}
node = gtk_ctree_find_by_row_data(ctree, NULL, finfo);
g_assert(node);
/* Expand and select our field's row */
gtk_ctree_expand(ctree, node);
gtk_ctree_select(ctree, node);
expand_tree(ctree, node, NULL);
/* ... and its parents */
parent = GTK_CTREE_ROW(node)->parent;
while (parent) {
gtk_ctree_expand(ctree, parent);
expand_tree(ctree, parent, NULL);
parent = GTK_CTREE_ROW(parent)->parent;
}
/* And position the window so the selection is visible.
* Position the selection in the middle of the viewable
* pane. */
gtk_ctree_node_moveto(ctree, node, 0, .5, 0);
return FALSE;
}
/* Calls functions for different mouse-button presses. */
static gint
byte_view_button_press_cb(GtkWidget *widget, GdkEvent *event, gpointer data)
{
GdkEventButton *event_button = NULL;
if(widget == NULL || event == NULL || data == NULL) {
return FALSE;
}
if(event->type == GDK_BUTTON_PRESS) {
event_button = (GdkEventButton *) event;
switch(event_button->button) {
case 1:
return byte_view_select(widget, event_button, data);
case 3:
return popup_menu_handler(widget, event, data);
default:
return FALSE;
}
}
return FALSE;
}
void
create_byte_view(gint bv_size, GtkWidget *pane, GtkWidget **byte_nb_p,
GtkWidget **bv_scrollw_p, int pos)
{
GtkWidget *byte_scrollw, *byte_nb;
byte_nb = gtk_notebook_new();
gtk_notebook_set_tab_pos ( GTK_NOTEBOOK(byte_nb), GTK_POS_BOTTOM);
gtk_paned_pack2(GTK_PANED(pane), byte_nb, FALSE, FALSE);
gtk_widget_show(byte_nb);
/* Byte view. Create a scrolled window for the text. */
byte_scrollw = gtk_scrolled_window_new(NULL, NULL);
*byte_nb_p = byte_nb;
*bv_scrollw_p = byte_scrollw;
}
void
byte_view_realize_cb( GtkWidget *bv, gpointer data){
guint8* byte_data = gtk_object_get_data(GTK_OBJECT(bv), E_BYTE_VIEW_DATA_PTR_KEY);
int byte_len = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(bv), E_BYTE_VIEW_DATA_LEN_KEY));
packet_hex_print(GTK_TEXT(bv), byte_data, cfile.current_frame, NULL, byte_len);
}
static GtkWidget *
add_byte_tab(GtkWidget *byte_nb, const char *name, const guint8 *data, int len,
proto_tree *tree, GtkWidget *tree_view)
{
GtkWidget *byte_view, *byte_scrollw, *label;
gchar *name_ptr;
/* Byte view. Create a scrolled window for the text. */
byte_scrollw = scrolled_window_new(NULL, NULL);
/* Add scrolled pane to tabbed window */
label = gtk_label_new (name);
gtk_notebook_append_page (GTK_NOTEBOOK(byte_nb), byte_scrollw, label);
/* The horizontal scrollbar of the scroll-window doesn't seem
* to affect the GtkText widget at all, even when line wrapping
* is turned off in the GtkText widget and there is indeed more
* horizontal data. */
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(byte_scrollw),
/* Horizontal */GTK_POLICY_NEVER,
/* Vertical*/ GTK_POLICY_ALWAYS);
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_text_set_line_wrap(GTK_TEXT(byte_view), FALSE);
gtk_object_set_data(GTK_OBJECT(byte_view), E_BYTE_VIEW_DATA_PTR_KEY,
(gpointer)data);
gtk_object_set_data(GTK_OBJECT(byte_view), E_BYTE_VIEW_DATA_LEN_KEY,
GINT_TO_POINTER(len));
gtk_label_get(GTK_LABEL(label), &name_ptr);
gtk_object_set_data(GTK_OBJECT(byte_view), E_BYTE_VIEW_NAME_KEY, name_ptr);
gtk_container_add(GTK_CONTAINER(byte_scrollw), byte_view);
gtk_signal_connect(GTK_OBJECT(byte_view), "show",
GTK_SIGNAL_FUNC(byte_view_realize_cb), NULL);
gtk_signal_connect(GTK_OBJECT(byte_view), "button_press_event",
GTK_SIGNAL_FUNC(byte_view_button_press_cb),
gtk_object_get_data(GTK_OBJECT(popup_menu_object),
PM_HEXDUMP_KEY));
gtk_object_set_data(GTK_OBJECT(byte_view), E_BYTE_VIEW_TREE_PTR,
tree);
gtk_object_set_data(GTK_OBJECT(byte_view), E_BYTE_VIEW_TREE_VIEW_PTR,
tree_view);
gtk_widget_show(byte_view);
gtk_object_set_data(GTK_OBJECT(byte_scrollw), E_BYTE_VIEW_TEXT_INFO_KEY,
byte_view);
/* no tabs if this is the first page */
if ( !(gtk_notebook_page_num(GTK_NOTEBOOK(byte_nb), byte_scrollw)))
gtk_notebook_set_show_tabs ( GTK_NOTEBOOK(byte_nb), FALSE);
else
gtk_notebook_set_show_tabs ( GTK_NOTEBOOK(byte_nb), TRUE);
return byte_view;
}
void
add_byte_views(frame_data *frame, proto_tree *tree, GtkWidget *tree_view,
GtkWidget *byte_nb_ptr)
{
int i;
tvbuff_t *bv_tvb;
/*
* Add to the specified byte view notebook tabs for hex dumps
* of all the data sources for the specified frame.
*/
for (i = 0;
(bv_tvb = g_slist_nth_data(frame->data_src, i)) != NULL; i++) {
add_byte_tab(byte_nb_ptr, tvb_get_name(bv_tvb),
tvb_get_ptr(bv_tvb, 0, -1), tvb_length(bv_tvb),
tree, tree_view);
}
/*
* Initially select the first byte view.
*/
set_notebook_page(byte_nb_ptr, 0);
}
void
packet_hex_print_common(GtkText *bv, guint8 *pd, int len, int bstart, int bend, int encoding)
{
gint i = 0, j, k, cur;
guchar line[128], hexchars[] = "0123456789abcdef", c = '\0';
GdkFont *cur_font, *new_font;
GdkColor *fg, *bg;
gboolean reverse, newreverse;
/* 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://www.ethereal.com/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));
while (i < 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 < 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 < 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++] = 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 < 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++] = 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 linenum;
float scrollval;
linenum = bstart / BYTE_VIEW_WIDTH;
scrollval = MIN(linenum * m_font_height,
bv->vadj->upper - bv->vadj->page_size);
gtk_adjustment_set_value(bv->vadj, scrollval);
}
}
void
packet_hex_print(GtkText *bv, guint8 *pd, frame_data *fd, field_info *finfo, int len){
/* do the initial printing and save the information needed */
/* to redraw the display if preferences change. */
int bstart, bend = -1, blen;
if (finfo != NULL) {
bstart = finfo->start;
blen = finfo->length;
} else {
bstart = -1;
blen = -1;
}
if (bstart >= 0 && blen >= 0) {
bend = bstart + blen;
}
/* save the information needed to redraw the text */
/* should we save the fd & finfo pointers instead ?? */
gtk_object_set_data(GTK_OBJECT(bv), E_BYTE_VIEW_START_KEY, GINT_TO_POINTER(bend));
gtk_object_set_data(GTK_OBJECT(bv), E_BYTE_VIEW_END_KEY, GINT_TO_POINTER(bstart));
gtk_object_set_data(GTK_OBJECT(bv), E_BYTE_VIEW_ENCODE_KEY, GINT_TO_POINTER(fd->flags.encoding));
packet_hex_print_common( bv, pd, len, bstart, bend, fd->flags.encoding);
}
void
packet_hex_reprint(GtkText *bv){
/* redraw the text using the saved information, */
/* usually called if the preferences haved changed. */
int start, end, len, encoding;
guint8 *data;
start = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(bv), E_BYTE_VIEW_START_KEY));
end = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(bv), E_BYTE_VIEW_END_KEY));
len = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(bv), E_BYTE_VIEW_DATA_LEN_KEY));
data = gtk_object_get_data(GTK_OBJECT(bv), E_BYTE_VIEW_DATA_PTR_KEY);
encoding = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(bv), E_BYTE_VIEW_ENCODE_KEY));
packet_hex_print_common( bv, data, len, start, end, encoding);
}
/* List of all protocol tree widgets, so we can globally set the selection
mode 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);
}
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 = scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW(tv_scrollw),
GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS);
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 = ctree_new(1, 0);
gtk_signal_connect( GTK_OBJECT(tree_view), "key-press-event",
(GtkSignalFunc) toggle_tree, NULL );
gtk_signal_connect( GTK_OBJECT(tree_view), "tree-expand",
(GtkSignalFunc) expand_tree, NULL );
gtk_signal_connect( GTK_OBJECT(tree_view), "tree-collapse",
(GtkSignalFunc) collapse_tree, NULL );
/* 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);
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);
}
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_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 = PITEM_FINFO(node);
gchar label_str[ITEM_LABEL_LENGTH];
gchar *label_ptr;
GtkCTreeNode *parent;
gboolean is_leaf, is_expanded;
int i;
if (!fi->visible)
return;
/*
* XXX - why are we doing this? This is done when we consruct
* the protocol tree display, but, as far as I can tell, it only
* needs to be done when a particular field in the tree is
* selected.
*/
if (fi->ds_name != NULL) {
i = find_notebook_page(byte_nb_ptr, fi->ds_name);
if (i < 0)
return; /* no notebook pages ?? */
set_notebook_page(byte_nb_ptr, i);
}
/* 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);
}
}
/*
* Clear the hex dump and protocol tree panes.
*/
void
clear_tree_and_hex_views(void)
{
/* Clear the hex dump. */
GtkWidget *byte_view;
int i;
/* Get the current tab scroll window, then get the text widget */
/* from the E_BYTE_VIEW_TEXT_INFO_KEY data field */
i = gtk_notebook_get_current_page( GTK_NOTEBOOK(byte_nb_ptr));
if ( i >= 0){
byte_view = gtk_notebook_get_nth_page( GTK_NOTEBOOK(byte_nb_ptr), i);
byte_view = gtk_object_get_data(GTK_OBJECT(byte_view), E_BYTE_VIEW_TEXT_INFO_KEY);
gtk_text_freeze(GTK_TEXT(byte_view));
gtk_text_set_point(GTK_TEXT(byte_view), 0);
gtk_text_forward_delete(GTK_TEXT(byte_view),
gtk_text_get_length(GTK_TEXT(byte_view)));
gtk_text_thaw(GTK_TEXT(byte_view));
}
/* Remove all nodes in ctree. This is how it's done in testgtk.c in GTK+ */
gtk_clist_clear ( GTK_CLIST(tree_view) );
}
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