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wireshark/gtk/ui_util.c

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/* ui_util.c
* UI utility routines
*
* $Id: ui_util.c,v 1.19 2004/02/13 00:53:37 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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 _WIN32
#include <windows.h>
#endif
#ifdef HAVE_IO_H
# include <io.h>
#endif
#include <gtk/gtk.h>
#include "gtkglobals.h"
#include "ui_util.h"
#include "prefs.h"
#include "epan/epan.h"
#include "../ui_util.h"
#include "compat_macros.h"
#include "image/eicon3d16.xpm"
/* Set our window icon. The GDK documentation doesn't provide any
actual documentation for gdk_window_set_icon(), so we'll steal
libgimp/gimpdialog.c:gimp_dialog_realize_callback() from the Gimp
sources and assume it's safe.
XXX - The current icon size is fixed at 16x16 pixels, which looks fine
with kwm (KDE 1.x's window manager), Sawfish (the "default" window
manager for GNOME?), and under Windows with Exceed putting X windows
on the Windows desktop, using Exceed as the window manager, as those
window managers put a 16x16 icon on the title bar.
The window managers in some windowing environments (e.g. dtwm in CDE)
and some stand-alone window managers have larger icon sizes (many window
managers put the window icon on the desktop, in the Windows 3.x style,
rather than in the titlebar, in the Windows 4.x style), so we need to
find a way to size our icon appropriately.
The X11 Inter-Client Communications Conventions Manual, Version 1.1,
in X11R5, specifies that "a window manager that wishes to place
constraints on the sizes of icon pixmaps and/or windows should
place a property called WM_ICON_SIZE on the root"; that property
contains minimum width and height, maximum width and height, and
width and height increment values. "XGetIconSizes()" retrieves
that property; unfortunately, I've yet to find a window manager
that sets it on the root window (kwm, AfterStep, and Exceed don't
appear to set it).
The X Desktop Group's Window Manager Standard specifies, in the section
on Application Window Properties, an _NET_WM_ICON property, presumably
set by the window manager, which is an array of possible icon sizes
for the client. There's no API in GTK+ 1.2[.x] for this; there may
eventually be one either in GTK+ 2.0 or GNOME 2.0.
Some window managers can be configured to take the window name
specified by the WM_NAME property of a window or the resource
or class name specified by the WM_CLASS property and base the
choice of icon for the window on one of those; WM_CLASS for
Ethereal's windows has a resource name of "ethereal" and a class
name of "Ethereal". However, the way that's done is window-manager-
specific, and there's no way to determine what size a particular
window manager would want, so there's no way to automate this as
part of the installation of Ethereal.
*/
static void
window_icon_realize_cb (GtkWidget *win, gpointer data _U_)
{
#ifndef WIN32
static GdkPixmap *icon_pmap = NULL;
static GdkBitmap *icon_mask = NULL;
GtkStyle *style;
style = gtk_widget_get_style (win);
if (icon_pmap == NULL) {
icon_pmap = gdk_pixmap_create_from_xpm_d (win->window,
&icon_mask, &style->bg[GTK_STATE_NORMAL], eicon3d16_xpm);
}
gdk_window_set_icon (win->window, NULL, icon_pmap, icon_mask);
#endif
}
/* Create a new window, of the specified type, with the specified title
(if any) and the Ethereal icon. */
GtkWidget *
window_new(GtkWindowType type, const gchar *title)
{
GtkWidget *win;
win = gtk_window_new(type);
if (title != NULL)
gtk_window_set_title(GTK_WINDOW(win), title);
SIGNAL_CONNECT(win, "realize", window_icon_realize_cb, NULL);
return win;
}
/* Set the name of the top-level window and its icon to the specified
string. */
void
set_main_window_name(gchar *window_name)
{
gtk_window_set_title(GTK_WINDOW(top_level), window_name);
gdk_window_set_icon_name(top_level->window, window_name);
}
#ifdef HAVE_LIBPCAP
/* update the main window */
void main_window_update(void)
{
while (gtk_events_pending()) gtk_main_iteration();
}
/* exit the main window */
void main_window_exit(void)
{
gtk_exit(0);
}
/* quit a nested main window */
void main_window_nested_quit(void)
{
if (gtk_main_level() > 0)
gtk_main_quit();
}
/* quit the main window */
void main_window_quit(void)
{
gtk_main_quit();
}
typedef struct pipe_input_tag {
gint source;
gpointer user_data;
int *child_process;
pipe_input_cb_t input_cb;
guint pipe_input_id;
} pipe_input_t;
#ifdef _WIN32
/* The timer has expired, see if there's stuff to read from the pipe,
if so, do the callback */
static gint
pipe_timer_cb(gpointer data)
{
HANDLE handle;
DWORD avail = 0;
gboolean result, result1;
DWORD childstatus;
pipe_input_t *pipe_input = data;
/* Oddly enough although Named pipes don't work on win9x,
PeekNamedPipe does !!! */
handle = (HANDLE) _get_osfhandle (pipe_input->source);
result = PeekNamedPipe(handle, NULL, 0, NULL, &avail, NULL);
/* Get the child process exit status */
result1 = GetExitCodeProcess((HANDLE)*(pipe_input->child_process),
&childstatus);
/* If the Peek returned an error, or there are bytes to be read
or the childwatcher thread has terminated then call the normal
callback */
if (!result || avail > 0 || childstatus != STILL_ACTIVE) {
/* avoid reentrancy problems and stack overflow */
gtk_timeout_remove(pipe_input->pipe_input_id);
/* And call the real handler */
if (pipe_input->input_cb(pipe_input->source, pipe_input->user_data)) {
/* restore pipe handler */
pipe_input->pipe_input_id = gtk_timeout_add(200, pipe_timer_cb, data);
}
/* Return false so that this timer is not run again */
return FALSE;
}
else {
/* No data so let timer run again */
return TRUE;
}
}
#else /* _WIN32 */
/* There's stuff to read from the sync pipe, meaning the child has sent
us a message, or the sync pipe has closed, meaning the child has
closed it (perhaps because it exited). */
static void
pipe_input_cb(gpointer data, gint source _U_,
GdkInputCondition condition _U_)
{
pipe_input_t *pipe_input = data;
/* avoid reentrancy problems and stack overflow */
gtk_input_remove(pipe_input->pipe_input_id);
if (pipe_input->input_cb(source, pipe_input->user_data)) {
/* restore pipe handler */
pipe_input->pipe_input_id = gtk_input_add_full (source,
GDK_INPUT_READ|GDK_INPUT_EXCEPTION,
pipe_input_cb,
NULL,
data,
NULL);
}
}
#endif
void pipe_input_set_handler(gint source, gpointer user_data, int *child_process, pipe_input_cb_t input_cb)
{
static pipe_input_t pipe_input;
pipe_input.source = source;
pipe_input.child_process = child_process;
pipe_input.user_data = user_data;
pipe_input.input_cb = input_cb;
#ifdef _WIN32
/* Tricky to use pipes in win9x, as no concept of wait. NT can
do this but that doesn't cover all win32 platforms. GTK can do
this but doesn't seem to work over processes. Attempt to do
something similar here, start a timer and check for data on every
timeout. */
pipe_input.pipe_input_id = gtk_timeout_add(200, pipe_timer_cb, &pipe_input);
#else
pipe_input.pipe_input_id = gtk_input_add_full(source,
GDK_INPUT_READ|GDK_INPUT_EXCEPTION,
pipe_input_cb,
NULL,
&pipe_input,
NULL);
#endif
}
#endif /* HAVE_LIBPCAP */
/* Given a pointer to a GtkWidget for a top-level window, raise it and
de-iconify it. This routine is used if the user has done something to
ask that a window of a certain type be popped up when there can be only
one such window and such a window has already been popped up - we
pop up the existing one rather than creating a new one.
XXX - we should request that it be given the input focus, too. Alas,
GDK has nothing to do that, e.g. by calling "XSetInputFocus()" in a
window in X. Besides, using "XSetInputFocus()" doesn't work anyway,
apparently due to the way GTK+/GDK manages the input focus.
The X Desktop Group's Window Manager Standard specifies, in the section
on Root Window Properties, an _NET_ACTIVE_WINDOW client message that
can be sent to the root window, containing the window ID of the
window to activate; I infer that this might be the way to give the
window the input focus - I assume that means it's also de-iconified,
but I wouldn't assume it'd raise it.
XXX - will this do the right thing on window systems other than X? */
void
reactivate_window(GtkWidget *win)
{
gdk_window_show(win->window);
gdk_window_raise(win->window);
}
/* List of all GtkScrolledWindows, so we can globally set the scrollbar
placement of all of them. */
static GList *scrolled_windows;
static void setup_scrolled_window(GtkWidget *scrollw);
static void forget_scrolled_window(GtkWidget *scrollw, gpointer data);
static void set_scrollbar_placement_scrollw(GtkWidget *scrollw);
/* Create a GtkScrolledWindow, set its scrollbar placement appropriately,
and remember it. */
GtkWidget *
scrolled_window_new(GtkAdjustment *hadjustment, GtkAdjustment *vadjustment)
{
GtkWidget *scrollw;
scrollw = gtk_scrolled_window_new(hadjustment, vadjustment);
setup_scrolled_window(scrollw);
return scrollw;
}
/* Set a GtkScrolledWindow's scrollbar placement and add it to the list
of GtkScrolledWindows. */
static void
setup_scrolled_window(GtkWidget *scrollw)
{
set_scrollbar_placement_scrollw(scrollw);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrollw),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
scrolled_windows = g_list_append(scrolled_windows, scrollw);
/* Catch the "destroy" event on the widget, so that we remove it from
the list when it's destroyed. */
SIGNAL_CONNECT(scrollw, "destroy", forget_scrolled_window, NULL);
}
/* Remove a GtkScrolledWindow from the list of GtkScrolledWindows. */
static void
forget_scrolled_window(GtkWidget *scrollw, gpointer data _U_)
{
scrolled_windows = g_list_remove(scrolled_windows, scrollw);
}
/* Set the scrollbar placement of a GtkScrolledWindow based upon user
preference. */
static void
set_scrollbar_placement_scrollw(GtkWidget *scrollw)
{
if (prefs.gui_scrollbar_on_right) {
gtk_scrolled_window_set_placement(GTK_SCROLLED_WINDOW(scrollw),
GTK_CORNER_TOP_LEFT);
} else {
gtk_scrolled_window_set_placement(GTK_SCROLLED_WINDOW(scrollw),
GTK_CORNER_TOP_RIGHT);
}
}
static void
set_scrollbar_placement_cb(gpointer data, gpointer user_data _U_)
{
set_scrollbar_placement_scrollw((GtkWidget *)data);
}
/* Set the scrollbar placement of all GtkScrolledWindows based on
user preference. */
void
set_scrollbar_placement_all(void)
{
g_list_foreach(scrolled_windows, set_scrollbar_placement_cb, NULL);
}
/* List of all CTrees/TreeViews, so we can globally set the line and
* expander style of all of them. */
static GList *trees;
static void setup_tree(GtkWidget *tree);
static void forget_tree(GtkWidget *tree, gpointer data);
static void set_tree_styles(GtkWidget *tree);
/* Create a Tree, give it the right styles, and remember it. */
#if GTK_MAJOR_VERSION < 2
GtkWidget *
ctree_new(gint columns, gint tree_column)
#else
GtkWidget *
tree_view_new(GtkTreeModel *model)
#endif
{
GtkWidget *tree;
#if GTK_MAJOR_VERSION < 2
tree = gtk_ctree_new(columns, tree_column);
#else
tree = gtk_tree_view_new_with_model(model);
#endif
setup_tree(tree);
return tree;
}
#if GTK_MAJOR_VERSION < 2
GtkWidget *
ctree_new_with_titles(gint columns, gint tree_column, gchar *titles[])
{
GtkWidget *tree;
tree = gtk_ctree_new_with_titles(columns, tree_column, titles);
setup_tree(tree);
return tree;
}
#endif
/* Set a Tree's styles and add it to the list of Trees. */
static void
setup_tree(GtkWidget *tree)
{
set_tree_styles(tree);
trees = g_list_append(trees, tree);
/* Catch the "destroy" event on the widget, so that we remove it from
the list when it's destroyed. */
SIGNAL_CONNECT(tree, "destroy", forget_tree, NULL);
}
/* Remove a Tree from the list of Trees. */
static void
forget_tree(GtkWidget *tree, gpointer data _U_)
{
trees = g_list_remove(trees, tree);
}
/* Set the styles of a Tree based upon user preferences. */
static void
set_tree_styles(GtkWidget *tree)
{
#if GTK_MAJOR_VERSION < 2
g_assert(prefs.gui_ptree_line_style >= GTK_CTREE_LINES_NONE &&
prefs.gui_ptree_line_style <= GTK_CTREE_LINES_TABBED);
gtk_ctree_set_line_style(GTK_CTREE(tree), prefs.gui_ptree_line_style);
g_assert(prefs.gui_ptree_expander_style >= GTK_CTREE_EXPANDER_NONE &&
prefs.gui_ptree_expander_style <= GTK_CTREE_EXPANDER_CIRCULAR);
gtk_ctree_set_expander_style(GTK_CTREE(tree),
prefs.gui_ptree_expander_style);
#else
g_assert(prefs.gui_altern_colors >= 0 && prefs.gui_altern_colors <= 1);
gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(tree),
prefs.gui_altern_colors);
#endif
}
static void
set_tree_styles_cb(gpointer data, gpointer user_data _U_)
{
set_tree_styles((GtkWidget *)data);
}
/* Set the styles of all Trees based upon style values. */
void
set_tree_styles_all(void)
{
g_list_foreach(trees, set_tree_styles_cb, NULL);
}
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