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Diffstat (limited to 'multiload/src/main.c')
| -rw-r--r-- | multiload/src/main.c | 573 |
1 files changed, 573 insertions, 0 deletions
diff --git a/multiload/src/main.c b/multiload/src/main.c new file mode 100644 index 00000000..50732e01 --- /dev/null +++ b/multiload/src/main.c @@ -0,0 +1,573 @@ +/* MATE multiload panel applet + * (C) 1997 The Free Software Foundation + * + * Authors: Tim P. Gerla + * Martin Baulig + * Todd Kulesza + * + * With code from wmload.c, v0.9.2, apparently by Ryan Land, [email protected]. + * + */ + +#include <config.h> +#include <stdio.h> +#include <sys/stat.h> +#include <unistd.h> +#include <signal.h> +#include <dirent.h> +#include <string.h> +#include <time.h> + +#include <glibtop.h> +#include <gtk/gtk.h> +#include <gdk/gdkkeysyms.h> +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <gio/gio.h> +#include <gio/gdesktopappinfo.h> +#include <mate-panel-applet.h> +#include <mate-panel-applet-gsettings.h> + +#include "global.h" + +static void +about_cb (GtkAction *action, + MultiloadApplet *ma) +{ + const gchar * const authors[] = + { + "Martin Baulig <[email protected]>", + "Todd Kulesza <[email protected]>", + "Benoît Dejean <[email protected]>", + "Davyd Madeley <[email protected]>", + NULL + }; + + const gchar* documenters[] = + { + "Chee Bin HOH <[email protected]>", + N_("Sun GNOME Documentation Team <[email protected]>"), + N_("MATE Documentation Team"), + NULL + }; + +#ifdef ENABLE_NLS + const char **p; + for (p = documenters; *p; ++p) + *p = _(*p); +#endif + + gtk_show_about_dialog (NULL, + "title", _("About System Monitor"), + "version", VERSION, + "copyright", _("Copyright \xc2\xa9 1999-2005 Free Software Foundation and others\n" + "Copyright \xc2\xa9 2012-2020 MATE developers"), + "comments", _("A system load monitor capable of displaying graphs " + "for CPU, ram, and swap space use, plus network " + "traffic."), + "authors", authors, + "documenters", documenters, + "translator-credits", _("translator-credits"), + "logo-icon-name", "utilities-system-monitor", + NULL); +} + +static void +help_cb (GtkAction *action, + MultiloadApplet *ma) +{ + GError *error = NULL; + + gtk_show_uri_on_window (NULL, + "help:mate-multiload", + gtk_get_current_event_time (), + &error); + + if (error) { /* FIXME: the user needs to see this */ + g_warning ("help error: %s\n", error->message); + g_error_free (error); + error = NULL; + } +} + +/* run the full-scale system process monitor */ + +static void +start_procman (MultiloadApplet *ma) +{ + GError *error = NULL; + GDesktopAppInfo *appinfo; + gchar *monitor; + GdkAppLaunchContext *launch_context; + GdkDisplay *display; + GAppInfo *app_info; + GdkScreen *screen; + + g_return_if_fail (ma != NULL); + + monitor = g_settings_get_string (ma->settings, "system-monitor"); + if (monitor == NULL) + monitor = g_strdup ("mate-system-monitor.desktop"); + + screen = gtk_widget_get_screen (GTK_WIDGET (ma->applet)); + appinfo = g_desktop_app_info_new (monitor); + if (appinfo) { + GdkAppLaunchContext *context; + display = gdk_screen_get_display (screen); + context = gdk_display_get_app_launch_context (display); + gdk_app_launch_context_set_screen (context, screen); + g_app_info_launch (G_APP_INFO (appinfo), NULL, G_APP_LAUNCH_CONTEXT (context), &error); + g_object_unref (context); + g_object_unref (appinfo); + } + else { + app_info = g_app_info_create_from_commandline ("mate-system-monitor", + _("Start system-monitor"), + G_APP_INFO_CREATE_NONE, + &error); + + if (!error) { + display = gdk_screen_get_display (screen); + launch_context = gdk_display_get_app_launch_context (display); + gdk_app_launch_context_set_screen (launch_context, screen); + g_app_info_launch (app_info, NULL, G_APP_LAUNCH_CONTEXT (launch_context), &error); + + g_object_unref (launch_context); + } + } + g_free (monitor); + + if (error) { + GtkWidget *dialog; + + dialog = gtk_message_dialog_new (NULL, + GTK_DIALOG_DESTROY_WITH_PARENT, + GTK_MESSAGE_ERROR, + GTK_BUTTONS_OK, + _("There was an error executing '%s': %s"), + "mate-system-monitor", + error->message); + + g_signal_connect (dialog, "response", + G_CALLBACK (gtk_widget_destroy), + NULL); + + gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE); + gtk_window_set_screen (GTK_WINDOW (dialog), screen); + + gtk_widget_show (dialog); + + g_error_free (error); + } +} + +static void +start_procman_cb (GtkAction *action, + MultiloadApplet *ma) +{ + start_procman (ma); +} + +static void +multiload_change_size_cb(MatePanelApplet *applet, gint size, gpointer data) +{ + MultiloadApplet *ma = (MultiloadApplet *)data; + + multiload_applet_refresh(ma); + + return; +} + +static void +multiload_change_orient_cb(MatePanelApplet *applet, gint arg1, gpointer data) +{ + MultiloadApplet *ma = data; + multiload_applet_refresh((MultiloadApplet *)data); + gtk_widget_show (GTK_WIDGET (ma->applet)); + return; +} + +static void +multiload_destroy_cb(GtkWidget *widget, gpointer data) +{ + gint i; + MultiloadApplet *ma = data; + + for (i = 0; i < graph_n; i++) + { + load_graph_stop(ma->graphs[i]); + if (ma->graphs[i]->colors) + { + g_free (ma->graphs[i]->colors); + ma->graphs[i]->colors = NULL; + } + gtk_widget_destroy(ma->graphs[i]->main_widget); + + load_graph_unalloc(ma->graphs[i]); + g_free(ma->graphs[i]); + } + + netspeed_delete (ma->netspeed_in); + netspeed_delete (ma->netspeed_out); + + if (ma->about_dialog) + gtk_widget_destroy (ma->about_dialog); + + if (ma->prop_dialog) + gtk_widget_destroy (ma->prop_dialog); + + gtk_widget_destroy(GTK_WIDGET(ma->applet)); + + g_free (ma); + + return; +} + + +static gboolean +multiload_button_press_event_cb (GtkWidget *widget, GdkEventButton *event, MultiloadApplet *ma) +{ + g_return_val_if_fail (event != NULL, FALSE); + g_return_val_if_fail (ma != NULL, FALSE); + + if (event->button == 1 && event->type == GDK_BUTTON_PRESS) { + start_procman (ma); + return TRUE; + } + return FALSE; +} + +static gboolean +multiload_key_press_event_cb (GtkWidget *widget, GdkEventKey *event, MultiloadApplet *ma) +{ + g_return_val_if_fail (event != NULL, FALSE); + g_return_val_if_fail (ma != NULL, FALSE); + + switch (event->keyval) { + /* this list of keyvals taken from mixer applet, which seemed to have + a good list of keys to use */ + case GDK_KEY_KP_Enter: + case GDK_KEY_ISO_Enter: + case GDK_KEY_3270_Enter: + case GDK_KEY_Return: + case GDK_KEY_space: + case GDK_KEY_KP_Space: + /* activate */ + start_procman (ma); + return TRUE; + + default: + break; + } + + return FALSE; +} + +/* update the tooltip to the graph's current "used" percentage */ +void +multiload_applet_tooltip_update(LoadGraph *g) +{ + gchar *tooltip_text; + MultiloadApplet *multiload; + const char *tooltip_label [graph_n] = { + [graph_cpuload] = N_("Processor"), + [graph_memload] = N_("Memory"), + [graph_netload2] = N_("Network"), + [graph_swapload] = N_("Swap Space"), + [graph_loadavg] = N_("Load Average"), + [graph_diskload] = N_("Disk") + }; + const char *name; + + g_assert(g); + + multiload = g->multiload; + + /* label the tooltip intuitively */ + name = gettext (tooltip_label [g->id]); + + switch (g->id) { + case graph_memload: { + float user_percent, cache_percent; + + user_percent = MIN ((float)(100 * multiload->memload_user) / (float)(multiload->memload_total), 100.0f); + cache_percent = MIN ((float)(100 * multiload->memload_cache) / (float)(multiload->memload_total), 100.0f); + tooltip_text = g_strdup_printf (_("%s:\n" + "%.01f%% in use by programs\n" + "%.01f%% in use as cache"), + name, + user_percent, + cache_percent); + break; + } + case graph_loadavg: { + tooltip_text = g_strdup_printf (_("The system load average is %0.02f"), + multiload->loadavg1); + break; + } + case graph_netload2: { + char *tx_in, *tx_out; + + tx_in = netspeed_get(multiload->netspeed_in); + tx_out = netspeed_get(multiload->netspeed_out); + /* xgettext: same as in graphic tab of g-s-m */ + tooltip_text = g_strdup_printf(_("%s:\n" + "Receiving %s\n" + "Sending %s"), + name, tx_in, tx_out); + g_free(tx_in); + g_free(tx_out); + break; + } + default: { + float ratio; + float percent; + + if (g->id == graph_cpuload) + ratio = multiload->cpu_used_ratio; + else if (g->id == graph_swapload) + ratio = multiload->swapload_used_ratio; + else if (g->id == graph_diskload) + ratio = multiload->diskload_used_ratio; + else + g_assert_not_reached (); + + percent = CLAMP (ratio * 100.0f, 0.0f, 100.0f); + tooltip_text = g_strdup_printf(_("%s:\n" + "%.01f%% in use"), + name, + percent); + } + } + + gtk_widget_set_tooltip_text(g->disp, tooltip_text); + + g_free(tooltip_text); +} + +static void +multiload_create_graphs(MultiloadApplet *ma) +{ + struct { const char *label; + const char *visibility_key; + const char *name; + int num_colours; + LoadGraphDataFunc callback; + } graph_types [graph_n] = { + [graph_cpuload] = { _("CPU Load"), VIEW_CPULOAD_KEY, "cpuload", cpuload_n, GetLoad }, + [graph_memload] = { _("Memory Load"), VIEW_MEMLOAD_KEY, "memload", memload_n, GetMemory }, + [graph_netload2] = { _("Net Load"), VIEW_NETLOAD_KEY, "netload2", 6, GetNet }, + [graph_swapload] = { _("Swap Load"), VIEW_SWAPLOAD_KEY, "swapload", swapload_n, GetSwap }, + [graph_loadavg] = { _("Load Average"), VIEW_LOADAVG_KEY, "loadavg", 3, GetLoadAvg }, + [graph_diskload] = { _("Disk Load"), VIEW_DISKLOAD_KEY, "diskload", diskload_n, GetDiskLoad } + }; + + gint speed, size; + guint net_threshold1; + guint net_threshold2; + guint net_threshold3; + gint i; + + speed = g_settings_get_int (ma->settings, "speed"); + size = g_settings_get_int (ma->settings, "size"); + net_threshold1 = CLAMP (g_settings_get_uint (ma->settings, "netthreshold1"), MIN_NET_THRESHOLD1, MAX_NET_THRESHOLD1); + net_threshold2 = CLAMP (g_settings_get_uint (ma->settings, "netthreshold2"), MIN_NET_THRESHOLD2, MAX_NET_THRESHOLD2); + net_threshold3 = CLAMP (g_settings_get_uint (ma->settings, "netthreshold3"), MIN_NET_THRESHOLD3, MAX_NET_THRESHOLD3); + if (net_threshold1 >= net_threshold2) + { + net_threshold1 = net_threshold2 - 1; + } + if (net_threshold2 >= net_threshold3) + { + net_threshold3 = net_threshold2 + 1; + } + speed = MAX (speed, 50); + size = CLAMP (size, 10, 400); + + for (i = 0; i < graph_n; i++) + { + ma->graphs[i] = load_graph_new (ma, + graph_types[i].num_colours, + graph_types[i].label, + i, + speed, + size, + g_settings_get_boolean (ma->settings, graph_types[i].visibility_key), + graph_types[i].name, + graph_types[i].callback); + } + ma->nvme_diskstats = g_settings_get_boolean (ma->settings, "diskload-nvme-diskstats"); + /* for Network graph, colors[4] is grid line color, it should not be used in loop in load-graph.c */ + /* for Network graph, colors[5] is indicator color, it should not be used in loop in load-graph.c */ + ma->graphs[graph_netload2]->n = 4; + ma->net_threshold1 = net_threshold1; + ma->net_threshold2 = net_threshold2; + ma->net_threshold3 = net_threshold3; + ma->netspeed_in = netspeed_new (ma->graphs [graph_netload2]); + ma->netspeed_out = netspeed_new (ma->graphs [graph_netload2]); + /* for Load graph, colors[2] is grid line color, it should not be used in loop in load-graph.c */ + ma->graphs[graph_loadavg]->n = 2; +} + +/* remove the old graphs and rebuild them */ +void +multiload_applet_refresh(MultiloadApplet *ma) +{ + gint i; + MatePanelAppletOrient orientation; + + /* stop and free the old graphs */ + for (i = 0; i < graph_n; i++) + { + if (!ma->graphs[i]) + continue; + + load_graph_stop(ma->graphs[i]); + gtk_widget_destroy(ma->graphs[i]->main_widget); + + load_graph_unalloc(ma->graphs[i]); + g_free(ma->graphs[i]); + } + + if (ma->box) + gtk_widget_destroy(ma->box); + + orientation = mate_panel_applet_get_orient(ma->applet); + + if ( (orientation == MATE_PANEL_APPLET_ORIENT_UP) || + (orientation == MATE_PANEL_APPLET_ORIENT_DOWN) ) { + ma->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0); + } + else + ma->box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0); + + gtk_container_add(GTK_CONTAINER(ma->applet), ma->box); + + /* create the N graphs, passing in their user-configurable properties with gsettings. */ + multiload_create_graphs (ma); + + /* only start and display the graphs the user has turned on */ + + for (i = 0; i < graph_n; i++) { + gtk_box_pack_start(GTK_BOX(ma->box), + ma->graphs[i]->main_widget, + TRUE, TRUE, 1); + if (ma->graphs[i]->visible) { + gtk_widget_show_all (ma->graphs[i]->main_widget); + load_graph_start(ma->graphs[i]); + } + } + gtk_widget_show (ma->box); + + return; +} + +static const GtkActionEntry multiload_menu_actions [] = { + { "MultiLoadProperties", "document-properties", N_("_Preferences"), + NULL, NULL, + G_CALLBACK (multiload_properties_cb) }, + { "MultiLoadRunProcman", "system-run", N_("_Open System Monitor"), + NULL, NULL, + G_CALLBACK (start_procman_cb) }, + { "MultiLoadHelp", "help-browser", N_("_Help"), + NULL, NULL, + G_CALLBACK (help_cb) }, + { "MultiLoadAbout", "help-about", N_("_About"), + NULL, NULL, + G_CALLBACK (about_cb) } +}; + +/* create a box and stuff the load graphs inside of it */ +static gboolean +multiload_applet_new(MatePanelApplet *applet, const gchar *iid, gpointer data) +{ + GtkStyleContext *context; + MultiloadApplet *ma; + GSettings *lockdown_settings; + GtkActionGroup *action_group; + + context = gtk_widget_get_style_context (GTK_WIDGET (applet)); + gtk_style_context_add_class (context, "multiload-applet"); + + ma = g_new0(MultiloadApplet, 1); + + ma->applet = applet; + + ma->about_dialog = NULL; + ma->prop_dialog = NULL; + ma->last_clicked = 0; + + g_set_application_name (_("System Monitor")); + + gtk_window_set_default_icon_name ("utilities-system-monitor"); + + ma->settings = mate_panel_applet_settings_new (applet, "org.mate.panel.applet.multiload"); + mate_panel_applet_set_flags (applet, MATE_PANEL_APPLET_EXPAND_MINOR); + + action_group = gtk_action_group_new ("Multiload Applet Actions"); + gtk_action_group_set_translation_domain (action_group, GETTEXT_PACKAGE); + gtk_action_group_add_actions (action_group, + multiload_menu_actions, + G_N_ELEMENTS (multiload_menu_actions), + ma); + mate_panel_applet_setup_menu_from_file (applet, + MULTILOAD_MENU_UI_DIR "multiload-applet-menu.xml", + action_group); + + if (mate_panel_applet_get_locked_down (applet)) { + GtkAction *action; + + action = gtk_action_group_get_action (action_group, "MultiLoadProperties"); + gtk_action_set_visible (action, FALSE); + } + + lockdown_settings = g_settings_new ("org.mate.lockdown"); + if (g_settings_get_boolean (lockdown_settings, "disable-command-line") || + mate_panel_applet_get_locked_down (applet)) { + GtkAction *action; + + /* When the panel is locked down or when the command line is inhibited, + it seems very likely that running the procman would be at least harmful */ + action = gtk_action_group_get_action (action_group, "MultiLoadRunProcman"); + gtk_action_set_visible (action, FALSE); + } + g_object_unref (lockdown_settings); + + g_object_unref (action_group); + + g_signal_connect(G_OBJECT(applet), "change_size", + G_CALLBACK(multiload_change_size_cb), ma); + g_signal_connect(G_OBJECT(applet), "change_orient", + G_CALLBACK(multiload_change_orient_cb), ma); + g_signal_connect(G_OBJECT(applet), "destroy", + G_CALLBACK(multiload_destroy_cb), ma); + g_signal_connect(G_OBJECT(applet), "button_press_event", + G_CALLBACK(multiload_button_press_event_cb), ma); + g_signal_connect(G_OBJECT(applet), "key_press_event", + G_CALLBACK(multiload_key_press_event_cb), ma); + + multiload_applet_refresh (ma); + + gtk_widget_show(GTK_WIDGET(applet)); + + return TRUE; +} + +static gboolean +multiload_factory (MatePanelApplet *applet, + const gchar *iid, + gpointer data) +{ + gboolean retval = FALSE; + + glibtop_init(); + + retval = multiload_applet_new(applet, iid, data); + + return retval; +} + +MATE_PANEL_APPLET_OUT_PROCESS_FACTORY ("MultiLoadAppletFactory", + PANEL_TYPE_APPLET, + "multiload", + multiload_factory, + NULL) |