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wireshark/gtk/gui_utils.c

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/* gui_utils.c
* UI utility routines, some GTK+-specific (declared in gtk/gui_utils.h)
* and some with GUI-independent APIs, with this file containing the GTK+
* implementations of them (declared in ui_util.h)
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.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
#include <string.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <epan/prefs.h>
#include "epan/epan.h"
#include "../ui_util.h"
#include <wsutil/file_util.h>
#include "gtk/gtkglobals.h"
#include "gtk/gui_utils.h"
#include "gtk/recent.h"
#include "image/wsicon16.xpm"
#define WINDOW_GEOM_KEY "window_geom"
/* load the geometry values for a window from previously saved values */
static gboolean window_geom_load(const gchar *name, window_geometry_t *geom);
/* 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
Wireshark's windows has a resource name of "wireshark" and a class
name of "Wireshark". 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 Wireshark.
*/
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],
(gchar **) wsicon16_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 Wireshark 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);
g_signal_connect(win, "realize", G_CALLBACK(window_icon_realize_cb), NULL);
/* XXX - which one is the correct default policy? or use a preference for this? */
/* GTK_WIN_POS_NONE, GTK_WIN_POS_CENTER or GTK_WIN_POS_MOUSE */
/* a lot of people dislike GTK_WIN_POS_MOUSE */
/* set the initial position (must be done, before show is called!) */
/* gtk_window_set_position(GTK_WINDOW(win), GTK_WIN_POS_CENTER_ON_PARENT);*/
gtk_window_set_position(GTK_WINDOW(win), GTK_WIN_POS_NONE);
return win;
}
/* Same as window_new(), but will keep it's geometry values (size, position, ...).
* Be sure to use window_present() and window_destroy() appropriately! */
GtkWidget *
window_new_with_geom(GtkWindowType type, const gchar *title, const gchar *geom_name)
{
window_geometry_t geom;
GtkWidget *win = window_new(type, title);
g_object_set_data(G_OBJECT(win), WINDOW_GEOM_KEY, (gpointer)g_strdup(geom_name));
/* do we have a previously saved size and position of this window? */
if(geom_name) {
/* It's a good idea to set the position and size of the window already here,
* as it's still invisible and won't "flicker the screen" while initially resizing. */
if(window_geom_load(geom_name, &geom)) {
/* XXX - use prefs to select which values to set? */
geom.set_pos = TRUE;
geom.set_size = TRUE;
geom.set_maximized = FALSE; /* don't maximize until window is shown */
window_set_geometry(win, &geom);
}
}
return win;
}
/* Create a new window for a splash screen; it's a main window, with no title,
positioned in the center of the screen. */
GtkWidget *
splash_window_new(void)
{
GtkWidget *win;
win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_decorated(GTK_WINDOW(win), FALSE);
/* set the initial position (must be done, before show is called!) */
gtk_window_set_position(GTK_WINDOW(win), GTK_WIN_POS_CENTER);
return win;
}
/* Present the created window on the screen. */
void
window_present(GtkWidget *win)
{
window_geometry_t geom;
const gchar *name;
/* present this window */
gtk_window_present(GTK_WINDOW(win));
/* do we have a previously saved size and position of this window? */
name = g_object_get_data(G_OBJECT(win), WINDOW_GEOM_KEY);
if(name) {
if(window_geom_load(name, &geom)) {
/* XXX - use prefs to select which values to set? */
geom.set_pos = TRUE;
geom.set_size = TRUE;
geom.set_maximized = TRUE;
window_set_geometry(win, &geom);
}
}
}
static gint
window_key_press_cb (GtkWidget *widget, GdkEventKey *event, gpointer cancel_button)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (event->keyval == GDK_Escape) {
gtk_widget_activate(GTK_WIDGET(cancel_button));
return TRUE;
}
return FALSE;
}
/* Set the "key_press_event" signal for a top-level dialog window to
call a routine to activate the "Cancel" button for a dialog box if
the key being pressed is the <Esc> key.
XXX - there should be a GTK+ widget that'll do that for you, and
let you specify a "Cancel" button. It should also not impose
a requirement that there be a separator in the dialog box, as
the GtkDialog widget does; the visual convention that there's
such a separator between the rest of the dialog boxes and buttons
such as "OK" and "Cancel" is, for better or worse, not universal
(not even in GTK+ - look at the GtkFileSelection dialog!). */
static void
window_set_cancel(GtkWidget *widget, GtkWidget *cancel_button)
{
g_signal_connect(widget, "key_press_event", G_CALLBACK(window_key_press_cb), cancel_button);
}
/* set the actions needed for the cancel "Close"/"Ok"/"Cancel" button that closes the window */
void window_set_cancel_button(GtkWidget *win, GtkWidget *bt, window_cancel_button_fct cb)
{
if(cb)
g_signal_connect(bt, "clicked", G_CALLBACK(cb), win);
gtk_widget_grab_default(bt);
window_set_cancel(win, bt);
}
/* default callback handler for cancel button "clicked" signal */
void window_cancel_button_cb(GtkWidget *w _U_, gpointer data)
{
window_destroy(GTK_WIDGET(data));
}
/* default callback handler: the window managers X of the window was clicked (delete_event) */
gboolean
window_delete_event_cb(GtkWidget *win, GdkEvent *event _U_, gpointer user_data _U_)
{
window_destroy(win);
/* event handled, don't do anything else */
return TRUE;
}
/* get the geometry of a window from window_new() */
void
window_get_geometry(GtkWidget *widget, window_geometry_t *geom)
{
gint desk_x, desk_y;
GdkWindowState state;
/* Try to grab our geometry.
GTK+ provides two routines to get a window's position relative
to the X root window. If I understand the documentation correctly,
gdk_window_get_deskrelative_origin applies mainly to Enlightenment
and gdk_window_get_root_origin applies for all other WMs.
The code below tries both routines, and picks the one that returns
the upper-left-most coordinates.
More info at:
http://mail.gnome.org/archives/gtk-devel-list/2001-March/msg00289.html
http://www.gtk.org/faq/#AEN606
*/
gdk_window_get_root_origin(widget->window,
&geom->x,
&geom->y);
if (gdk_window_get_deskrelative_origin(widget->window,
&desk_x, &desk_y)) {
if (desk_x <= geom->x &&
desk_y <= geom->y)
{
geom->x = desk_x;
geom->y = desk_y;
}
}
/* XXX - Is this the "approved" method? */
gdk_window_get_size(widget->window,
&geom->width,
&geom->height);
state = gdk_window_get_state(widget->window);
geom->maximized = (state == GDK_WINDOW_STATE_MAXIMIZED);
}
/* set the geometry of a window from window_new() */
void
window_set_geometry(GtkWidget *widget, window_geometry_t *geom)
{
/* as we now have the geometry from the recent file, set it */
/* if the window was minimized, x and y are -32000 (at least on Win32) */
if (geom->set_pos && geom->x != -32000 && geom->y != -32000) {
gtk_window_move(GTK_WINDOW(widget),
geom->x,
geom->y);
}
if (geom->set_size) {
gtk_window_resize(GTK_WINDOW(widget),
/*gtk_widget_set_size_request(widget,*/
geom->width,
geom->height);
}
if(geom->set_maximized) {
if (geom->maximized) {
gdk_window_maximize(widget->window);
} else {
gdk_window_unmaximize(widget->window);
}
}
}
/* the geometry hashtable for all known window classes,
* the window name is the key, and the geometry struct is the value */
GHashTable *window_geom_hash = NULL;
/* save the window and it's current geometry into the geometry hashtable */
static void
window_geom_save(const gchar *name, window_geometry_t *geom)
{
gchar *key;
window_geometry_t *work;
/* init hashtable, if not already done */
if(!window_geom_hash) {
window_geom_hash = g_hash_table_new (g_str_hash, g_str_equal);
}
/* if we have an old one, remove and free it first */
work = g_hash_table_lookup(window_geom_hash, name);
if(work) {
g_hash_table_remove(window_geom_hash, name);
g_free(work->key);
g_free(work);
}
/* g_malloc and insert the new one */
work = g_malloc(sizeof(*geom));
*work = *geom;
key = g_strdup(name);
work->key = key;
g_hash_table_insert(window_geom_hash, key, work);
}
/* load the desired geometry for this window from the geometry hashtable */
static gboolean
window_geom_load(const gchar *name, window_geometry_t *geom)
{
window_geometry_t *p;
/* init hashtable, if not already done */
if(!window_geom_hash) {
window_geom_hash = g_hash_table_new (g_str_hash, g_str_equal);
}
p = g_hash_table_lookup(window_geom_hash, name);
if(p) {
*geom = *p;
return TRUE;
} else {
return FALSE;
}
}
/* read in a single key value pair from the recent file into the geometry hashtable */
void
window_geom_recent_read_pair(const char *name, const char *key, const char *value)
{
window_geometry_t geom;
/* find window geometry maybe already in hashtable */
if(!window_geom_load(name, &geom)) {
/* not in table, init geom with "basic" values */
geom.key = g_strdup(name);
geom.set_pos = FALSE;
geom.x = -1;
geom.y = -1;
geom.set_size = FALSE;
geom.width = -1;
geom.height = -1;
geom.set_maximized = FALSE;/* this is valid in GTK2 only */
geom.maximized = FALSE; /* this is valid in GTK2 only */
}
if (strcmp(key, "x") == 0) {
geom.x = strtol(value, NULL, 10);
geom.set_pos = TRUE;
} else if (strcmp(key, "y") == 0) {
geom.y = strtol(value, NULL, 10);
geom.set_pos = TRUE;
} else if (strcmp(key, "width") == 0) {
geom.width = strtol(value, NULL, 10);
geom.set_size = TRUE;
} else if (strcmp(key, "height") == 0) {
geom.height = strtol(value, NULL, 10);
geom.set_size = TRUE;
} else if (strcmp(key, "maximized") == 0) {
if (g_ascii_strcasecmp(value, "true") == 0) {
geom.maximized = TRUE;
}
else {
geom.maximized = FALSE;
}
geom.set_maximized = TRUE;
} else {
/*
* Silently ignore the bogus key. We shouldn't abort here,
* as this could be due to a corrupt recent file.
*
* XXX - should we print a message about this?
*/
return;
}
/* save / replace geometry in hashtable */
window_geom_save(name, &geom);
}
/* write all geometry values of all windows from the hashtable to the recent file */
void
window_geom_recent_write_all(gpointer rf)
{
/* init hashtable, if not already done */
if(!window_geom_hash) {
window_geom_hash = g_hash_table_new (g_str_hash, g_str_equal);
}
g_hash_table_foreach(window_geom_hash, write_recent_geom, rf);
}
void
window_destroy(GtkWidget *win)
{
window_geometry_t geom;
const gchar *name;
/* get_geometry must be done *before* destroy is running, as the window geometry
* cannot be retrieved at destroy time (so don't use event "destroy" for this) */
/* ...and don't do this at all, if we currently have no GdkWindow (e.g. if the
* GtkWidget is hidden) */
if(!GTK_WIDGET_NO_WINDOW(win) && GTK_WIDGET_VISIBLE(win)) {
window_get_geometry(win, &geom);
name = g_object_get_data(G_OBJECT(win), WINDOW_GEOM_KEY);
if(name) {
window_geom_save(name, &geom);
g_free((gpointer)name);
}
}
gtk_widget_destroy(win);
}
/* convert an xpm to a GtkWidget, using the window settings from it's parent */
/* (be sure that the parent window is already being displayed) */
GtkWidget *xpm_to_widget_from_parent(GtkWidget *parent, const char ** xpm) {
GdkPixbuf * pixbuf;
GdkPixmap * pixmap;
GdkBitmap * bitmap;
pixbuf = gdk_pixbuf_new_from_xpm_data(xpm);
gdk_pixbuf_render_pixmap_and_mask_for_colormap (pixbuf, gtk_widget_get_colormap(parent), &pixmap, &bitmap, 128);
return gtk_image_new_from_pixmap (pixmap, bitmap);
}
/* convert an xpm to a GtkWidget, using the top_level window settings */
/* (be sure that the top_level window is already being displayed) */
GtkWidget *xpm_to_widget(const char ** xpm) {
return xpm_to_widget_from_parent(top_level, xpm);
}
/*
* Key to attach the "un-decorated" title to the window, so that if the
* user-specified decoration changes, we can correctly update the
* window title.
*/
#define MAIN_WINDOW_NAME_KEY "main_window_name"
/* Set the name of the top-level window and its icon to the specified
string. */
void
set_main_window_name(const gchar *window_name)
{
gchar *old_window_name;
/* Attach the new un-decorated window name to the window. */
old_window_name = g_object_get_data(G_OBJECT(top_level), MAIN_WINDOW_NAME_KEY);
if (old_window_name != NULL)
g_free(old_window_name);
g_object_set_data(G_OBJECT(top_level), MAIN_WINDOW_NAME_KEY, g_strdup(window_name));
update_main_window_name();
}
/* Update the name of the main window if the user-specified decoration
changed. */
void
update_main_window_name(void)
{
gchar *window_name;
gchar *title;
window_name = g_object_get_data(G_OBJECT(top_level), MAIN_WINDOW_NAME_KEY);
if (window_name != NULL) {
/* use user-defined window title if preference is set */
title = create_user_window_title(window_name);
gtk_window_set_title(GTK_WINDOW(top_level), title);
gdk_window_set_icon_name(top_level->window, title);
g_free(title);
}
}
/* 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);
}
#ifdef HAVE_LIBPCAP
/* 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;
gint iterations = 0;
/* try to read data from the pipe only 5 times, to avoid blocking */
while(iterations < 5) {
/*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: new iteration");*/
/* 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) {
/*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: data avail");*/
if(pipe_input->pipe_input_id != 0) {
/*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: stop timer");*/
/* avoid reentrancy problems and stack overflow */
gtk_timeout_remove(pipe_input->pipe_input_id);
pipe_input->pipe_input_id = 0;
}
/* And call the real handler */
if (!pipe_input->input_cb(pipe_input->source, pipe_input->user_data)) {
g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: input pipe closed, iterations: %u", iterations);
/* pipe closed, return false so that the old timer is not run again */
return FALSE;
}
}
else {
/*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: no data avail");*/
/* No data, stop now */
break;
}
iterations++;
}
if(pipe_input->pipe_input_id == 0) {
/* restore pipe handler */
pipe_input->pipe_input_id = gtk_timeout_add(200, pipe_timer_cb, data);
/*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, new timer", iterations);*/
/* Return false so that the old timer is not run again */
return FALSE;
} else {
/*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, old timer", iterations);*/
/* we didn't stopped the old timer, so let it run */
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. */
/*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_input_set_handler: new");*/
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. */
g_signal_connect(scrollw, "destroy", G_CALLBACK(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);
static int tree_view_key_pressed_cb(GtkWidget *tree, GdkEventKey *event, gpointer user_data _U_);
/* Create a Tree, give it the right styles, and remember it. */
GtkWidget *
tree_view_new(GtkTreeModel *model)
{
GtkWidget *tree;
tree = gtk_tree_view_new_with_model(model);
setup_tree(tree);
return tree;
}
/* 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. */
g_signal_connect(tree, "destroy", G_CALLBACK(forget_tree), NULL);
g_signal_connect(tree, "key-press-event", G_CALLBACK(tree_view_key_pressed_cb), 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)
{
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);
}
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);
}
/* append a row to the simple list */
/* use it like: simple_list_append(list, 0, "first", 1, "second", -1) */
void
simple_list_append(GtkWidget *list, ...)
{
va_list ap;
GtkTreeIter iter;
GtkListStore *store;
va_start(ap, list);
store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(list)));
gtk_list_store_append(store, &iter);
gtk_list_store_set_valist(store, &iter, ap);
va_end(ap);
}
/* create a simple list widget */
GtkWidget *
simple_list_new(gint cols, const gchar **titles) {
GtkWidget *plugins_list;
int i;
GtkListStore *store;
GtkCellRenderer *renderer;
GtkTreeViewColumn *column;
g_assert(cols <= 10);
store = gtk_list_store_new(cols,
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
plugins_list = tree_view_new(GTK_TREE_MODEL(store));
g_object_unref(G_OBJECT(store));
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(plugins_list), (titles != NULL));
for(i=0; i<cols; i++) {
renderer = gtk_cell_renderer_text_new();
column = gtk_tree_view_column_new_with_attributes(titles ? titles[i] : "", renderer,
"text", i, NULL);
gtk_tree_view_column_set_sort_column_id(column, i);
gtk_tree_view_append_column(GTK_TREE_VIEW(plugins_list), column);
}
return plugins_list;
}
void render_as_url(GtkCellRenderer *cell)
{
g_object_set(cell, "foreground", "blue", NULL);
g_object_set(cell, "foreground-set", TRUE, NULL);
g_object_set(cell, "underline", PANGO_UNDERLINE_SINGLE, NULL);
g_object_set(cell, "underline-set", TRUE, NULL);
}
void simple_list_url_col(GtkWidget *list, gint col)
{
GtkTreeViewColumn *ul_column;
GList *renderers_list;
GtkCellRenderer *ul_renderer;
/* make the column look like a link ... */
ul_column = gtk_tree_view_get_column(GTK_TREE_VIEW(list), col);
renderers_list = gtk_tree_view_column_get_cell_renderers(ul_column);
if(renderers_list != NULL) {
/* it is simple list - there should be only one renderer */
ul_renderer = (GtkCellRenderer*)renderers_list->data;
render_as_url(ul_renderer);
g_list_free(renderers_list);
}
}
void
copy_to_clipboard(GString *str)
{
GtkClipboard *cb;
cb = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD); /* Get the default clipboard */
gtk_clipboard_set_text(cb, str->str, -1); /* Copy the byte data into the clipboard */
}
typedef struct _copy_binary_t {
guint8* data;
int len;
} copy_binary_t;
static
copy_binary_t* create_copy_binary_t(const guint8* data, int len)
{
copy_binary_t* copy_data;
g_assert(len > 0);
copy_data = g_new(copy_binary_t,1);
copy_data->data = g_new(guint8,len);
copy_data->len = len;
memcpy(copy_data->data,data,len * sizeof(guint8));
return copy_data;
}
static void destroy_copy_binary_t(copy_binary_t* copy_data) {
g_free(copy_data->data);
g_free(copy_data);
}
static
void copy_binary_free_cb(GtkClipboard *clipboard _U_, gpointer user_data_or_owner)
{
copy_binary_t* copy_data;
copy_data = user_data_or_owner;
destroy_copy_binary_t(copy_data);
}
static
void copy_binary_get_cb(GtkClipboard *clipboard _U_, GtkSelectionData *selection_data, guint info _U_, gpointer user_data_or_owner)
{
copy_binary_t* copy_data;
copy_data = user_data_or_owner;
/* Just do a dumb set as binary data */
gtk_selection_data_set(selection_data, GDK_NONE, 8, copy_data->data, copy_data->len);
}
void copy_binary_to_clipboard(const guint8* data_p, int len)
{
static GtkTargetEntry target_entry[] = {
{"application/octet_stream", 0, 0}}; /* XXX - this not understood by most applications,
* but can be pasted into the better hex editors - is
* there something better that we can do?
*/
GtkClipboard *cb;
copy_binary_t* copy_data;
gboolean ret;
if(len <= 0) {
return; /* XXX would it be better to clear the clipboard? */
}
cb = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD); /* Get the default clipboard */
copy_data = create_copy_binary_t(data_p,len);
ret = gtk_clipboard_set_with_data(cb,target_entry,1,
copy_binary_get_cb, copy_binary_free_cb,copy_data);
if(!ret) {
destroy_copy_binary_t(copy_data);
}
}
/*
* Create a new window title string with user-defined title preference.
* (Or ignore it if unspecified).
*/
gchar *
create_user_window_title(const gchar *caption)
{
/* fail-safe */
if (caption == NULL)
return g_strdup("");
/* no user-defined title specified */
if ((prefs.gui_window_title == NULL) || (*prefs.gui_window_title == '\0'))
return g_strdup(caption);
return g_strdup_printf("%s %s", prefs.gui_window_title, caption);
}
/* XXX move toggle_tree over from proto_draw.c to handle GTK+ 1 */
static int
tree_view_key_pressed_cb(GtkWidget *tree, GdkEventKey *event, gpointer user_data _U_)
{
GtkTreeSelection* selection;
GtkTreeIter iter;
GtkTreeIter parent;
GtkTreeModel* model;
GtkTreePath* path;
gboolean expanded;
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
if(!selection) {
return FALSE;
}
if(!gtk_tree_selection_get_selected (selection, &model, &iter)) {
return FALSE;
}
path = gtk_tree_model_get_path(model, &iter);
if(!path) {
return FALSE;
}
expanded = gtk_tree_view_row_expanded(GTK_TREE_VIEW(tree), path);
switch (event->keyval) {
case GDK_Left:
if(expanded) {
/* subtree is expanded, collapse it */
gtk_tree_view_collapse_row(GTK_TREE_VIEW(tree), path);
return TRUE;
}
/* No break - fall through to jumping to the parent */
case GDK_BackSpace:
if (!expanded) {
/* subtree is already collapsed, jump to parent node */
if(! gtk_tree_model_iter_parent(model, &parent, &iter)) {
return FALSE;
}
path = gtk_tree_model_get_path(model, &parent);
if(!path) {
return FALSE;
}
gtk_tree_view_set_cursor(GTK_TREE_VIEW(tree), path,
NULL /* focus_column */,
FALSE /* !start_editing */);
return TRUE;
}
break;
case GDK_Right:
/* try to expand the subtree */
gtk_tree_view_expand_row(GTK_TREE_VIEW(tree), path, FALSE /* !open_all */);
return TRUE;
case GDK_Return:
case GDK_KP_Enter:
/* Reverse the current state. */
if (expanded)
gtk_tree_view_collapse_row(GTK_TREE_VIEW(tree), path);
else
gtk_tree_view_expand_row(GTK_TREE_VIEW(tree), path, FALSE /* !open_all */);
return TRUE;
}
return FALSE;
}
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