4aiman/xfce4-systemload-plugin-zram
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xfce4-systemload-plugin-zram/panel-plugin/systemload.cc
4aiman 0a59ec699f zram-aware memory, configurable uptime format (1:1.3.2-2ubuntu3+zram2) 
- zram.cc/.h: read zram usage; memory bar can subtract RAM held by zram
- memswap: zram and disk swap shown separately in the tooltip
- uptime: format string with %d %h %m %s, %H %M %S, %t, \n and {...}
- settings dialog fields for both, Russian translation
- tests/test_format_uptime.cc with tests/run.sh
This is what the installed 1:1.3.2-2ubuntu3+zram2 package was built from.
2026-11-03 22:24:11 +03:00

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/*
* This file is part of Xfce (https://gitlab.xfce.org).
*
* Copyright (c) 2003 Riccardo Persichetti <riccardo.persichetti@tin.it>
* Copyright (c) 2010 Florian Rivoal <frivoal@xfce.org>
* Copyright (c) 2012 David Schneider <dnschneid@gmail.com>
* Copyright (c) 2014-2017 Landry Breuil <landry@xfce.org>
* Copyright (c) 2021 Simon Steinbeiss <simon@xfce.org>
* Copyright (c) 2022 Jan Ziak <0xe2.0x9a.0x9b@xfce.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include <libxfce4util/libxfce4util.h>
#include <libxfce4ui/libxfce4ui.h>
#include <libxfce4panel/libxfce4panel.h>
#ifdef HAVE_UPOWER_GLIB
#include <upower.h>
#endif
#include "cpu.h"
#include "memswap.h"
#include "network.h"
#include "plugin.h"
#include "settings.h"
#include "uptime.h"
#include "zram.h"
struct t_command {
bool enabled;
gchar *command_text;
};
struct t_monitor {
GtkWidget *box;
GtkWidget *label;
GtkWidget *status;
GtkWidget *ebox;
gulong value_read; /* Range: 0% ... 100% */
};
struct t_uptime_monitor {
GtkWidget *label;
GtkWidget *ebox;
gulong value_read;
};
struct t_global_monitor {
XfcePanelPlugin *plugin;
SystemloadConfig *config;
GtkWidget *ebox;
GtkWidget *box;
guint timeout, timeout_seconds;
bool use_timeout_seconds;
guint timeout_id;
t_command command;
t_monitor *monitor[N_MONITORS];
t_uptime_monitor uptime;
#ifdef HAVE_UPOWER_GLIB
UpClient *upower;
#endif
};
/* zram sits between memory and swap: that is where it sits physically too -
* data already pushed out of RAM, but not yet spilled onto the disk. */
static const SystemloadMonitor VISUAL_ORDER[] = {
CPU_MONITOR,
MEM_MONITOR,
ZRAM_MONITOR,
SWAP_MONITOR,
NET_MONITOR,
};
static gboolean setup_monitor_cb(gpointer user_data);
static bool
spawn_system_monitor(GtkWidget *w, t_global_monitor *global)
{
// Spawn defined command; In-terminal: false, Startup-notify: false
return xfce_spawn_command_line_on_screen(gdk_screen_get_default(),
global->command.command_text,
FALSE, FALSE, NULL);
}
static gboolean
click_event(GtkWidget *w, GdkEventButton *event, t_global_monitor *global)
{
if(event->button == 1 && global->command.enabled && *(global->command.command_text))
return spawn_system_monitor(w, global);
return FALSE;
}
static void
set_fraction(GtkProgressBar *bar, gdouble fraction)
{
/*
* Try to avoid a call to GTK's bar_set_fraction() if the new fraction
* isn't changing the number of pixels (height or width of the bar) already
* displayed on the screen.
*
* max_alloc is independent from horizontal/vertical orientation of the bar.
*/
GtkAllocation alloc;
gtk_widget_get_allocation(GTK_WIDGET(bar), &alloc);
gint max_alloc = MAX(alloc.width, alloc.height);
if (max_alloc > 1)
fraction = round(fraction * max_alloc) / max_alloc;
if (gtk_progress_bar_get_fraction(bar) != fraction)
gtk_progress_bar_set_fraction(bar, fraction);
}
static void
set_label_text(GtkLabel *label, const gchar *text)
{
const gchar *displayed_text = gtk_label_get_text(label);
if (g_strcmp0(displayed_text, text) != 0)
gtk_label_set_text(label, text);
}
static void
set_tooltip(GtkWidget *w, const gchar *caption)
{
gchar *displayed_caption = gtk_widget_get_tooltip_text(w);
if (g_strcmp0(displayed_caption, caption) != 0)
gtk_widget_set_tooltip_text(w, caption);
g_free(displayed_caption);
}
static void
update_monitors(t_global_monitor *global)
{
const SystemloadConfig *config = global->config;
gulong MTotal = 0, MUsed = 0, NTotal = 0, STotal = 0, SUsed = 0, MZram = 0;
gulong ZPhys = 0, ZStored = 0;
gdouble ZRatio = 0.0;
bool ZValid = false;
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
global->monitor[i]->value_read = 0;
if (systemload_config_get_enabled (config, CPU_MONITOR))
global->monitor[CPU_MONITOR]->value_read = read_cpuload();
if (systemload_config_get_enabled (config, MEM_MONITOR) ||
systemload_config_get_enabled (config, SWAP_MONITOR))
{
gulong mem, swap;
if (read_memswap(&mem, &swap, &MTotal, &MUsed, &STotal, &SUsed) == 0)
{
/*
* MUsed as returned includes the RAM held by zram - that memory is
* genuinely occupied. Whether the memory bar should show it is a
* question of what the bar is meant to answer, so it is left to
* the user; see systemload_config_get_memory_exclude_zram().
*/
MZram = read_zram_phys();
if (systemload_config_get_memory_exclude_zram (config))
{
MUsed = (MUsed > MZram) ? (MUsed - MZram) : 0;
mem = (MTotal > 0) ? (MUsed * 100 / MTotal) : 0;
}
global->monitor[MEM_MONITOR]->value_read = mem;
global->monitor[SWAP_MONITOR]->value_read = swap;
}
}
if (systemload_config_get_enabled (config, ZRAM_MONITOR))
{
gulong zram;
if (read_zram (&zram, &ZPhys, &ZStored, &ZRatio) == 0)
{
global->monitor[ZRAM_MONITOR]->value_read = zram;
ZValid = true;
}
}
if (systemload_config_get_enabled (config, NET_MONITOR))
{
gulong net;
if (read_netload (&net, &NTotal) == 0)
global->monitor[NET_MONITOR]->value_read = net;
}
if (systemload_config_get_uptime_enabled (config))
global->uptime.value_read = read_uptime();
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
{
const auto monitor = (SystemloadMonitor) i;
t_monitor *m = global->monitor[monitor];
if (systemload_config_get_enabled (config, monitor))
{
gulong value = MIN(m->value_read, 100);
set_fraction(GTK_PROGRESS_BAR(global->monitor[i]->status), value / 100.0);
}
}
if (systemload_config_get_enabled (config, CPU_MONITOR))
{
gchar tooltip[128];
g_snprintf(tooltip, sizeof(tooltip), _("System Load: %ld%%"), global->monitor[CPU_MONITOR]->value_read);
set_tooltip(global->monitor[CPU_MONITOR]->ebox, tooltip);
}
if (systemload_config_get_enabled (config, MEM_MONITOR))
{
gchar tooltip[192];
/* Always spell out the zram share, whichever way the bar is counted:
* that way the number on screen is never ambiguous. */
if (MZram > 0)
{
if (systemload_config_get_memory_exclude_zram (config))
g_snprintf(tooltip, sizeof(tooltip),
_("Memory: %ldMB of %ldMB used, excluding %ldMB held by zram"),
MUsed >> 10, MTotal >> 10, MZram >> 10);
else
g_snprintf(tooltip, sizeof(tooltip),
_("Memory: %ldMB of %ldMB used, including %ldMB held by zram"),
MUsed >> 10, MTotal >> 10, MZram >> 10);
}
else
{
g_snprintf(tooltip, sizeof(tooltip), _("Memory: %ldMB of %ldMB used"), MUsed >> 10 , MTotal >> 10);
}
set_tooltip(global->monitor[MEM_MONITOR]->ebox, tooltip);
}
if (systemload_config_get_enabled (config, NET_MONITOR))
{
gchar tooltip[128];
g_snprintf(tooltip, sizeof(tooltip), _("Network: %ld Mbit/s"), (glong) round (NTotal / 1e6));
set_tooltip(global->monitor[NET_MONITOR]->ebox, tooltip);
}
if (systemload_config_get_enabled (config, ZRAM_MONITOR))
{
gchar tooltip[192];
if (ZValid && ZStored > 0)
g_snprintf(tooltip, sizeof(tooltip),
_("ZRAM: %ldMB of RAM holds %ldMB of data (%.2f:1)"),
ZPhys >> 10, ZStored >> 10, ZRatio);
else if (ZValid)
g_snprintf(tooltip, sizeof(tooltip), _("ZRAM: empty"));
else
g_snprintf(tooltip, sizeof(tooltip), _("No zram device"));
set_tooltip(global->monitor[ZRAM_MONITOR]->ebox, tooltip);
}
if (systemload_config_get_enabled (config, SWAP_MONITOR))
{
gchar tooltip[128];
/* Disk-backed swap only; zram is reported by its own monitor */
if (STotal)
g_snprintf(tooltip, sizeof(tooltip), _("Disk swap: %ldMB of %ldMB used"), SUsed >> 10, STotal >> 10);
else
g_snprintf(tooltip, sizeof(tooltip), _("No disk swap"));
set_tooltip(global->monitor[SWAP_MONITOR]->ebox, tooltip);
}
if (systemload_config_get_uptime_enabled (config))
{
gchar days_str[2][32], hours_str[2][32], mins_str[2][32];
gchar text[128], tooltip[128];
gint days = global->uptime.value_read / 86400;
gint hours = (global->uptime.value_read / 3600) % 24;
gint mins = (global->uptime.value_read / 60) % 60;
/* sizeof of one element: the whole [2][32] array is 64 bytes and
* would let g_snprintf write past the 32-byte buffer */
g_snprintf(days_str[0], sizeof(days_str[0]), _("%dd"), days);
g_snprintf(hours_str[0], sizeof(hours_str[0]), _("%dh"), hours);
g_snprintf(mins_str[0], sizeof(mins_str[0]), _("%dm"), mins);
g_snprintf(days_str[1], sizeof(days_str[1]), ngettext("%d day", "%d days", days), days);
g_snprintf(hours_str[1], sizeof(hours_str[1]), ngettext("%d hour", "%d hours", hours), hours);
g_snprintf(mins_str[1], sizeof(mins_str[1]), ngettext("%d minute", "%d minutes", mins), mins);
g_snprintf(tooltip, sizeof(tooltip), _("Uptime: %s, %s, %s"), days_str[1], hours_str[1], mins_str[1]);
const gchar *format = systemload_config_get_uptime_format (config);
if (format != NULL && format[0] != '\0')
{
gchar *custom = format_uptime (format, global->uptime.value_read);
set_label_text(GTK_LABEL(global->uptime.label), custom);
g_free (custom);
}
else
{
if (days > 0)
g_snprintf(text, sizeof(text), "%s %s %s", days_str[0], hours_str[0], mins_str[0]);
else
g_snprintf(text, sizeof(text), "%s %s", hours_str[0], mins_str[0]);
set_label_text(GTK_LABEL(global->uptime.label), text);
}
set_tooltip(global->uptime.ebox, tooltip);
}
}
static void
monitor_update_orientation (XfcePanelPlugin *plugin,
GtkOrientation panel_orientation,
GtkOrientation orientation,
t_global_monitor *global)
{
gtk_orientable_set_orientation(GTK_ORIENTABLE(global->box), panel_orientation);
for(gsize count = 0; count < G_N_ELEMENTS (global->monitor); count++)
{
gtk_orientable_set_orientation(GTK_ORIENTABLE(global->monitor[count]->box), panel_orientation);
gtk_label_set_angle(GTK_LABEL(global->monitor[count]->label),
(orientation == GTK_ORIENTATION_HORIZONTAL) ? 0 : -90);
gtk_progress_bar_set_inverted (GTK_PROGRESS_BAR(global->monitor[count]->status), (panel_orientation == GTK_ORIENTATION_HORIZONTAL));
gtk_orientable_set_orientation (GTK_ORIENTABLE(global->monitor[count]->status),
(panel_orientation == GTK_ORIENTATION_HORIZONTAL) ? GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL);
}
gtk_label_set_angle(GTK_LABEL(global->uptime.label),
(orientation == GTK_ORIENTATION_HORIZONTAL) ? 0 : -90);
}
static void
create_monitor (t_global_monitor *global)
{
const SystemloadConfig *config = global->config;
global->box = gtk_box_new(xfce_panel_plugin_get_orientation(global->plugin), 0);
gtk_widget_show(global->box);
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
{
SystemloadMonitor monitor = VISUAL_ORDER[i];
t_monitor *m = global->monitor[monitor];
m->label = gtk_label_new (systemload_config_get_label (config, monitor));
m->status = GTK_WIDGET(gtk_progress_bar_new());
#if GTK_CHECK_VERSION (3, 16, 0)
GtkCssProvider *css_provider = gtk_css_provider_new ();
gtk_style_context_add_provider (
GTK_STYLE_CONTEXT (gtk_widget_get_style_context (GTK_WIDGET (m->status))),
GTK_STYLE_PROVIDER (css_provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
gtk_css_provider_load_from_data (css_provider, "\
progressbar.horizontal trough { min-height: 4px; }\
progressbar.horizontal progress { min-height: 4px; }\
progressbar.vertical trough { min-width: 4px; }\
progressbar.vertical progress { min-width: 4px; }",
-1, NULL);
g_object_set_data(G_OBJECT(m->status), "css_provider", css_provider);
#endif
m->box = gtk_box_new(xfce_panel_plugin_get_orientation(global->plugin), 0);
gtk_box_pack_start(GTK_BOX(m->box), GTK_WIDGET(m->label), FALSE, FALSE, 0);
m->ebox = gtk_event_box_new();
gtk_widget_show(m->ebox);
gtk_container_add(GTK_CONTAINER(m->ebox), GTK_WIDGET(m->box));
gtk_event_box_set_visible_window(GTK_EVENT_BOX(m->ebox), FALSE);
gtk_event_box_set_above_child(GTK_EVENT_BOX(m->ebox), TRUE);
gtk_widget_show(GTK_WIDGET(m->status));
gtk_box_pack_start(GTK_BOX(m->box), GTK_WIDGET(m->status), FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(global->box), GTK_WIDGET(m->ebox), FALSE, FALSE, 0);
gtk_widget_show_all(GTK_WIDGET(m->ebox));
}
global->uptime.ebox = gtk_event_box_new();
if (systemload_config_get_uptime_enabled (config))
gtk_widget_show(global->uptime.ebox);
gtk_event_box_set_visible_window(GTK_EVENT_BOX(global->uptime.ebox), FALSE);
global->uptime.label = gtk_label_new("");
/* A format with \n gives several lines; keep them centred as a block */
gtk_label_set_justify(GTK_LABEL(global->uptime.label), GTK_JUSTIFY_CENTER);
gtk_widget_show(global->uptime.label);
gtk_container_add(GTK_CONTAINER(global->uptime.ebox),
GTK_WIDGET(global->uptime.label));
gtk_box_pack_start(GTK_BOX(global->box),
GTK_WIDGET(global->uptime.ebox),
FALSE, FALSE, 0);
gtk_container_add(GTK_CONTAINER(global->ebox), GTK_WIDGET(global->box));
gtk_event_box_set_visible_window(GTK_EVENT_BOX(global->ebox), FALSE);
gtk_widget_show(GTK_WIDGET(global->ebox));
update_monitors (global);
}
static t_global_monitor *
monitor_control_new(XfcePanelPlugin *plugin)
{
t_global_monitor *global = g_new0 (t_global_monitor, 1);
#ifdef HAVE_UPOWER_GLIB
global->upower = up_client_new();
#endif
global->plugin = plugin;
/* initialize xfconf */
global->config = systemload_config_new (xfce_panel_plugin_get_property_base (plugin));
global->timeout = systemload_config_get_timeout (global->config);
if (global->timeout < MIN_TIMEOUT)
global->timeout = MIN_TIMEOUT;
global->timeout_seconds = systemload_config_get_timeout_seconds (global->config);
global->use_timeout_seconds = (global->timeout_seconds > 0);
global->ebox = gtk_event_box_new();
gtk_widget_show(global->ebox);
global->command.command_text = g_strdup (systemload_config_get_system_monitor_command (global->config));
if (strlen(global->command.command_text) > 0)
global->command.enabled = true;
xfce_panel_plugin_add_action_widget (plugin, global->ebox);
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
global->monitor[i] = g_new0 (t_monitor, 1);
systemload_config_on_change (global->config, setup_monitor_cb, global);
return global;
}
static void
monitor_free(XfcePanelPlugin *plugin, t_global_monitor *global)
{
#ifdef HAVE_UPOWER_GLIB
if (global->upower) {
g_object_unref(global->upower);
global->upower = NULL;
}
#endif
if (global->timeout_id)
g_source_remove(global->timeout_id);
g_free(global->command.command_text);
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
g_free (global->monitor[i]);
g_free(global);
}
static gboolean
update_monitors_cb(gpointer user_data)
{
auto global = (t_global_monitor*) user_data;
update_monitors (global);
return TRUE;
}
static void
setup_timer(t_global_monitor *global)
{
GtkSettings *settings;
if (global->timeout_id)
g_source_remove(global->timeout_id);
#ifdef HAVE_UPOWER_GLIB
if (global->upower && global->use_timeout_seconds) {
if (up_client_get_on_battery(global->upower)) {
if (!up_client_get_lid_is_closed(global->upower)) {
global->timeout_id = g_timeout_add_seconds(
global->timeout_seconds,
update_monitors_cb, global);
} else {
/* Don't do any timeout if the lid is closed on battery */
global->timeout_id = 0;
}
return;
}
}
#endif
global->timeout_id = g_timeout_add(global->timeout, update_monitors_cb, global);
/* reduce the default tooltip timeout to be smaller than the update interval otherwise
* we won't see tooltips on GTK 2.16 or newer */
settings = gtk_settings_get_default();
if (g_object_class_find_property(G_OBJECT_GET_CLASS(settings), "gtk-tooltip-timeout"))
g_object_set(settings, "gtk-tooltip-timeout",
global->timeout - 10, NULL);
}
static void
set_margin (const t_global_monitor *global, GtkWidget *w, gint margin)
{
if (xfce_panel_plugin_get_orientation (global->plugin) == GTK_ORIENTATION_HORIZONTAL)
{
gtk_widget_set_margin_start (w, margin);
gtk_widget_set_margin_top (w, 0);
}
else
{
gtk_widget_set_margin_start (w, 0);
gtk_widget_set_margin_top (w, margin);
}
}
static void
setup_monitors(t_global_monitor *global)
{
const SystemloadConfig *config = global->config;
gtk_widget_hide(GTK_WIDGET(global->uptime.ebox));
/* determine the number of enabled monitors and the number of enabled labels */
guint n_enabled = 0, n_enabled_labels = 0;
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
{
auto monitor = (SystemloadMonitor) i;
if (systemload_config_get_enabled (config, monitor))
{
bool label_visible = systemload_config_get_use_label (config, monitor) &&
strlen (systemload_config_get_label (config, monitor)) != 0;
n_enabled++;
n_enabled_labels += (label_visible ? 1 : 0);
}
}
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
{
const auto monitor = (SystemloadMonitor) i;
const t_monitor *m = global->monitor[monitor];
const GdkRGBA *color = NULL;
gtk_widget_hide(m->ebox);
gtk_widget_hide(m->label);
gtk_label_set_text(GTK_LABEL(m->label), systemload_config_get_label (config, monitor));
color = systemload_config_get_color (config, monitor);
if (G_LIKELY (color != NULL))
{
#if GTK_CHECK_VERSION (3, 16, 0)
gchar *color_str = gdk_rgba_to_string(color);
gchar *css;
#if GTK_CHECK_VERSION (3, 20, 0)
css = g_strdup_printf("progressbar progress { background-color: %s; background-image: none; border-color: %s; }",
color_str, color_str);
#else
css = g_strdup_printf(".progressbar progress { background-color: %s; background-image: none; }", color);
#endif
gtk_css_provider_load_from_data (
(GtkCssProvider*) g_object_get_data(G_OBJECT(m->status), "css_provider"),
css, strlen(css), NULL);
g_free(color_str);
g_free(css);
#else
gtk_widget_override_background_color(m->status, GTK_STATE_FLAG_PRELIGHT, color);
gtk_widget_override_background_color(m->status, GTK_STATE_FLAG_SELECTED, color);
gtk_widget_override_color(m->status, GTK_STATE_FLAG_SELECTED, color);
#endif
}
if (systemload_config_get_enabled (config, monitor))
{
bool label_visible = systemload_config_get_use_label (config, monitor) &&
strlen (systemload_config_get_label (config, monitor)) != 0;
gtk_widget_show_all(GTK_WIDGET(m->ebox));
gtk_widget_set_visible (m->label, label_visible);
set_margin (global, m->ebox, (n_enabled_labels == 0) ? 0 : 6);
}
}
if (systemload_config_get_uptime_enabled (config))
{
gtk_widget_show_all (global->uptime.ebox);
set_margin (global, global->uptime.ebox, (n_enabled == 0) ? 0 : 6);
}
setup_timer (global);
}
static gboolean
setup_monitor_cb(gpointer user_data)
{
auto global = (t_global_monitor*) user_data;
setup_monitors (global);
update_monitors (global);
return TRUE;
}
static gboolean
monitor_set_size(XfcePanelPlugin *plugin, int size, t_global_monitor *global)
{
gtk_container_set_border_width (GTK_CONTAINER (global->ebox), (size > 26 ? 2 : 1));
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
{
if (xfce_panel_plugin_get_orientation (plugin) == GTK_ORIENTATION_HORIZONTAL)
{
gtk_widget_set_size_request(GTK_WIDGET(global->monitor[i]->status), 8, -1);
}
else
{
gtk_widget_set_size_request(GTK_WIDGET(global->monitor[i]->status), -1, 8);
}
}
setup_monitors (global);
return TRUE;
}
static void
monitor_set_mode (XfcePanelPlugin *plugin, XfcePanelPluginMode mode, t_global_monitor *global)
{
GtkOrientation panel_orientation = xfce_panel_plugin_get_orientation (plugin);
GtkOrientation orientation = (mode == XFCE_PANEL_PLUGIN_MODE_VERTICAL) ?
GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL;
/* Set small in all modes except deskbar mode */
if (mode == XFCE_PANEL_PLUGIN_MODE_DESKBAR)
xfce_panel_plugin_set_small(XFCE_PANEL_PLUGIN(plugin), FALSE);
else
xfce_panel_plugin_set_small(XFCE_PANEL_PLUGIN(plugin), TRUE);
monitor_update_orientation (plugin, panel_orientation, orientation, global);
monitor_set_size (plugin, xfce_panel_plugin_get_size (plugin), global);
}
#ifdef HAVE_UPOWER_GLIB
static void
#if UP_CHECK_VERSION(0, 99, 0)
upower_changed_cb(UpClient *client, GParamSpec *pspec, t_global_monitor *global)
#else /* UP_CHECK_VERSION < 0.99 */
upower_changed_cb(UpClient *client, t_global_monitor *global)
#endif /* UP_CHECK_VERSION */
{
setup_timer(global);
}
#endif /* HAVE_UPOWER_GLIB */
static void
command_entry_changed_cb(GtkEntry *entry, t_global_monitor *global)
{
g_free (global->command.command_text);
global->command.command_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (entry)));
global->command.enabled = (strlen (global->command.command_text) != 0);
}
static void
switch_cb(GtkSwitch *check_button, gboolean state, t_global_monitor *global)
{
gpointer sensitive_widget = g_object_get_data (G_OBJECT (check_button), "sensitive_widget");
gtk_switch_set_state (check_button, state);
if (sensitive_widget)
gtk_revealer_set_reveal_child (GTK_REVEALER (sensitive_widget), state);
}
static void
monitor_dialog_response (GtkWidget *dlg, int response,
t_global_monitor *global)
{
if (response == GTK_RESPONSE_HELP)
{
xfce_dialog_show_help (GTK_WINDOW (dlg), PACKAGE_NAME, NULL, NULL);
}
else
{
gtk_widget_destroy (dlg);
xfce_panel_plugin_unblock_menu (global->plugin);
}
}
static void
change_timeout_cb(GtkSpinButton *spin, t_global_monitor *global)
{
global->timeout = gtk_spin_button_get_value(spin);
setup_timer(global);
}
#ifdef HAVE_UPOWER_GLIB
static void
change_timeout_seconds_cb(GtkSpinButton *spin, t_global_monitor *global)
{
global->timeout_seconds = gtk_spin_button_get_value (spin);
global->use_timeout_seconds = (global->timeout_seconds != 0);
setup_timer (global);
}
#endif
/* Creates a label, its mnemonic will point to target.
* Returns the widget. */
static GtkWidget *new_label (GtkGrid *grid, guint row, const gchar *labeltext, GtkWidget *target)
{
GtkWidget *label = gtk_label_new_with_mnemonic (labeltext);
gtk_widget_set_halign(label, GTK_ALIGN_START);
gtk_widget_set_valign(label, GTK_ALIGN_CENTER);
gtk_widget_set_margin_start (label, 12);
gtk_label_set_mnemonic_widget(GTK_LABEL(label), target);
gtk_grid_attach(grid, label, 0, row, 1, 1);
return label;
}
/* Create a new monitor setting with gtkswitch, and eventually a color button and a checkbox + entry
*
* extra_toggle_setting: optional boolean property of the config object to
* expose as a checkbox under the label row; NULL for none. Used by the memory
* monitor for "exclude zram". */
static void
new_monitor_setting (t_global_monitor *global,
GtkGrid *grid, int position,
const gchar *title, bool color,
const gchar *setting,
const gchar *extra_toggle_setting = NULL,
const gchar *extra_toggle_text = NULL)
{
GtkWidget *sw, *label;
gchar *markup, *setting_name;
gboolean enabled = TRUE;
sw = gtk_switch_new();
gtk_widget_set_halign (sw, GTK_ALIGN_END);
gtk_widget_set_valign (sw, GTK_ALIGN_CENTER);
gtk_widget_set_margin_top (sw, 12);
setting_name = g_strconcat (setting, "-enabled", NULL);
g_object_get (G_OBJECT (global->config), setting_name, &enabled, NULL);
g_object_bind_property (G_OBJECT (global->config), setting_name,
G_OBJECT (sw), "active",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
g_signal_connect (GTK_WIDGET(sw), "state-set",
G_CALLBACK(switch_cb), global);
g_free (setting_name);
markup = g_markup_printf_escaped ("<b>%s</b>", title);
label = gtk_label_new (markup);
gtk_widget_set_halign(label, GTK_ALIGN_START);
gtk_widget_set_valign(label, GTK_ALIGN_CENTER);
gtk_widget_set_margin_top (label, 12);
gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
g_free (markup);
gtk_grid_attach(GTK_GRID(grid), label, 0, position, 1, 1);
gtk_grid_attach(GTK_GRID(grid), sw, 1, position, 1, 1);
if (g_strcmp0 (setting, "uptime") != 0)
{
GtkWidget *revealer = gtk_revealer_new ();
GtkWidget *subgrid = gtk_grid_new ();
gtk_container_add (GTK_CONTAINER (revealer), subgrid);
gtk_revealer_set_reveal_child (GTK_REVEALER (revealer), TRUE);
g_object_set_data (G_OBJECT(sw), "sensitive_widget", revealer);
gtk_grid_attach(GTK_GRID(grid), revealer, 0, position + 1, 2, 1);
gtk_grid_set_column_spacing (GTK_GRID(subgrid), 12);
gtk_grid_set_row_spacing (GTK_GRID(subgrid), 6);
label = gtk_label_new_with_mnemonic (_("Label:"));
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_widget_set_margin_start (label, 12);
gtk_grid_attach (GTK_GRID(subgrid), label, 0, 0, 1, 1);
/* Entry for the optional monitor label */
GtkWidget *entry = gtk_entry_new ();
gtk_widget_set_hexpand (entry, TRUE);
gtk_widget_set_tooltip_text (entry, _("Leave empty to disable the label"));
setting_name = g_strconcat (setting, "-label", NULL);
g_object_bind_property (G_OBJECT (global->config), setting_name,
G_OBJECT (entry), "text",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
g_free (setting_name);
gtk_grid_attach(GTK_GRID(subgrid), entry, 1, 0, 1, 1);
if (color)
{
/* Colorbutton to set the progressbar color */
GtkWidget *button = gtk_color_button_new ();
gtk_color_chooser_set_use_alpha (GTK_COLOR_CHOOSER (button), TRUE);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), button);
gtk_widget_set_halign(button, GTK_ALIGN_START);
gtk_widget_set_margin_start (button, 12);
setting_name = g_strconcat (setting, "-color", NULL);
g_object_bind_property (G_OBJECT (global->config), setting_name,
G_OBJECT (button), "rgba",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
g_free (setting_name);
gtk_grid_attach(GTK_GRID(subgrid), button, 2, 0, 1, 1);
}
if (extra_toggle_setting != NULL)
{
GtkWidget *check = gtk_check_button_new_with_mnemonic (extra_toggle_text);
gtk_widget_set_margin_start (check, 12);
g_object_bind_property (G_OBJECT (global->config), extra_toggle_setting,
G_OBJECT (check), "active",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
gtk_grid_attach (GTK_GRID(subgrid), check, 0, 1, 3, 1);
}
}
else
{
GtkWidget *revealer = gtk_revealer_new ();
GtkWidget *subgrid = gtk_grid_new ();
gtk_container_add (GTK_CONTAINER (revealer), subgrid);
gtk_revealer_set_reveal_child (GTK_REVEALER (revealer), TRUE);
g_object_set_data (G_OBJECT(sw), "sensitive_widget", revealer);
gtk_grid_attach(GTK_GRID(grid), revealer, 0, position + 1, 2, 1);
gtk_grid_set_column_spacing (GTK_GRID(subgrid), 12);
gtk_grid_set_row_spacing (GTK_GRID(subgrid), 6);
label = gtk_label_new_with_mnemonic (_("_Format:"));
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_widget_set_margin_start (label, 12);
gtk_grid_attach (GTK_GRID(subgrid), label, 0, 0, 1, 1);
GtkWidget *entry = gtk_entry_new ();
gtk_widget_set_hexpand (entry, TRUE);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), entry);
gtk_entry_set_placeholder_text (GTK_ENTRY (entry), _("built-in format"));
gtk_widget_set_tooltip_text (entry,
_("%d days, %h hours, %m minutes, %s seconds\n"
"%H %M %S - the same with two digits (07)\n"
"%t - total hours, %% - percent sign\n"
"\\n - new line\n"
"{...} - hidden when every number inside is 0\n"
"Example: {%dd }%H:%M\n"
"Leave empty for the built-in format"));
g_object_bind_property (G_OBJECT (global->config), "uptime-format",
G_OBJECT (entry), "text",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
gtk_grid_attach(GTK_GRID(subgrid), entry, 1, 0, 1, 1);
}
switch_cb (GTK_SWITCH (sw), enabled, global);
}
static void
monitor_create_options(XfcePanelPlugin *plugin, t_global_monitor *global)
{
SystemloadConfig *config = global->config;
GtkWidget *label, *entry, *button, *box;
/* Indices must match enum SystemloadMonitor; uptime has no enum entry and
* therefore sits at N_MONITORS, right after the last real monitor. */
static const gchar *FRAME_TEXT[] = {
N_ ("CPU monitor"),
N_ ("Memory monitor"),
N_ ("Network monitor"),
N_ ("Swap monitor"),
N_ ("ZRAM monitor"),
N_ ("Uptime monitor")
};
static const gchar *SETTING_TEXT[] = {
"cpu",
"memory",
"network",
"swap",
"zram"
};
xfce_panel_plugin_block_menu (plugin);
GtkWidget *dlg;
dlg = xfce_titled_dialog_new_with_mixed_buttons (_("System Load Monitor"),
GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (plugin))),
GTK_DIALOG_DESTROY_WITH_PARENT,
"window-close-symbolic", _("_Close"), GTK_RESPONSE_OK,
"help-browser", _("_Help"), GTK_RESPONSE_HELP,
NULL);
g_signal_connect (G_OBJECT (dlg), "response",
G_CALLBACK (monitor_dialog_response), global);
gtk_window_set_position (GTK_WINDOW (dlg), GTK_WIN_POS_CENTER);
gtk_window_set_icon_name (GTK_WINDOW (dlg), "org.xfce.panel.systemload");
GtkBox *content = GTK_BOX(gtk_dialog_get_content_area (GTK_DIALOG(dlg)));
GtkWidget *grid = gtk_grid_new();
gtk_grid_set_column_spacing (GTK_GRID(grid), 12);
gtk_grid_set_row_spacing (GTK_GRID(grid), 6);
gtk_container_set_border_width(GTK_CONTAINER(grid), 12);
gtk_box_pack_start (content, grid, TRUE, TRUE, 0);
label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (label), _("<b>General</b>"));
gtk_widget_set_halign(label, GTK_ALIGN_START);
gtk_widget_set_valign(label, GTK_ALIGN_CENTER);
gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 1, 1);
/* Update interval */
button = gtk_spin_button_new_with_range (MIN_TIMEOUT, MAX_TIMEOUT, 50);
gtk_label_set_mnemonic_widget (GTK_LABEL(label), button);
gtk_widget_set_halign (button, GTK_ALIGN_START);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (button), (gfloat)global->timeout);
g_object_bind_property (G_OBJECT (config), "timeout",
G_OBJECT (button), "value",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
g_signal_connect (G_OBJECT (button), "value-changed", G_CALLBACK(change_timeout_cb), global);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
label = gtk_label_new ("ms");
gtk_box_pack_start (GTK_BOX (box), button, FALSE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
gtk_grid_attach (GTK_GRID (grid), box, 1, 1, 1, 1);
new_label (GTK_GRID (grid), 1, _("Update interval:"), button);
#ifdef HAVE_UPOWER_GLIB
/* Power-saving interval */
button = gtk_spin_button_new_with_range (0, 10, 1);
gtk_widget_set_halign (button, GTK_ALIGN_START);
gtk_widget_set_tooltip_text(GTK_WIDGET(button), _("Update interval when running on battery (uses regular update interval if set to zero)"));
gtk_spin_button_set_value (GTK_SPIN_BUTTON (button), (gfloat)global->timeout_seconds);
g_object_bind_property (G_OBJECT (config), "timeout-seconds",
G_OBJECT (button), "value",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
g_signal_connect (G_OBJECT (button), "value-changed", G_CALLBACK(change_timeout_seconds_cb), global);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
label = gtk_label_new ("s");
gtk_box_pack_start (GTK_BOX (box), button, FALSE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
gtk_grid_attach (GTK_GRID (grid), box, 1, 2, 1, 1);
new_label (GTK_GRID (grid), 2, _("Power-saving interval:"), button);
#endif
/* System Monitor */
entry = gtk_entry_new ();
gtk_widget_set_hexpand (entry, TRUE);
gtk_entry_set_text (GTK_ENTRY(entry), global->command.command_text);
gtk_widget_set_tooltip_text(GTK_WIDGET(entry), _("Launched when clicking on the plugin"));
g_object_bind_property (G_OBJECT (config), "system-monitor-command",
G_OBJECT (entry), "text",
GBindingFlags (G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL));
g_signal_connect (G_OBJECT(entry), "changed",
G_CALLBACK(command_entry_changed_cb), global);
gtk_grid_attach (GTK_GRID (grid), entry, 1, 3, 1, 1);
label = new_label (GTK_GRID (grid), 3, _("System monitor:"), entry);
/* Add options for the monitors */
for(gsize i = 0; i < G_N_ELEMENTS (global->monitor); i++)
{
const SystemloadMonitor monitor = VISUAL_ORDER[i];
new_monitor_setting (global, GTK_GRID(grid), 4 + 2 * i,
_(FRAME_TEXT[monitor]),
true,
SETTING_TEXT[monitor],
(monitor == MEM_MONITOR) ? "memory-exclude-zram" : NULL,
(monitor == MEM_MONITOR)
? _("Do not count the RAM held by _zram")
: NULL);
}
/* Uptime monitor options */
new_monitor_setting (global, GTK_GRID(grid), 4 + 2*G_N_ELEMENTS (global->monitor),
_(FRAME_TEXT[N_MONITORS]), FALSE, "uptime");
gtk_widget_show_all (dlg);
}
static void
monitor_show_about(XfcePanelPlugin *plugin, t_global_monitor *global)
{
/* List of authors (in alphabetical order) */
const gchar *auth[] = {
"David Schneider <dnschneid@gmail.com>",
"Florian Rivoal <frivoal@xfce.org>",
"Jan Ziak <0xe2.0x9a.0x9b@xfce.org>",
"Landry Breuil <landry@xfce.org>",
"Riccardo Persichetti <riccardo.persichetti@tin.it>",
"Simon Steinbeiß <simon@xfce.org>",
NULL
};
gtk_show_about_dialog (NULL,
"logo-icon-name", "org.xfce.panel.systemload",
"license", xfce_get_license_text (XFCE_LICENSE_TEXT_BSD),
"version", PACKAGE_VERSION,
"program-name", PACKAGE_NAME,
"comments", _("Monitor CPU load, swap usage and memory footprint"),
"website", "https://docs.xfce.org/panel-plugins/xfce4-systemload-plugin/start",
"copyright", _("Copyright (c) 2003-2022\n"),
"authors", auth, NULL);
}
void
systemload_construct (XfcePanelPlugin *plugin)
{
xfce_textdomain(GETTEXT_PACKAGE, PACKAGE_LOCALE_DIR, "UTF-8");
t_global_monitor *global = monitor_control_new (plugin);
create_monitor (global);
monitor_set_mode (plugin, xfce_panel_plugin_get_mode (plugin), global);
setup_monitors (global);
gtk_container_add (GTK_CONTAINER (plugin), global->ebox);
update_monitors (global);
#ifdef HAVE_UPOWER_GLIB
if (global->upower) {
#if UP_CHECK_VERSION(0, 99, 0)
g_signal_connect (global->upower, "notify", G_CALLBACK(upower_changed_cb), global);
#else /* UP_CHECK_VERSION < 0.99 */
g_signal_connect (global->upower, "changed", G_CALLBACK(upower_changed_cb), global);
#endif /* UP_CHECK_VERSION */
}
#endif /* HAVE_UPOWER_GLIB */
g_signal_connect (plugin, "free-data", G_CALLBACK (monitor_free), global);
g_signal_connect (plugin, "size-changed", G_CALLBACK (monitor_set_size), global);
g_signal_connect (plugin, "mode-changed", G_CALLBACK (monitor_set_mode), global);
g_signal_connect (plugin, "button-press-event", G_CALLBACK (click_event), global);
xfce_panel_plugin_menu_show_configure (plugin);
g_signal_connect (plugin, "configure-plugin", G_CALLBACK (monitor_create_options), global);
xfce_panel_plugin_menu_show_about(plugin);
g_signal_connect (plugin, "about", G_CALLBACK (monitor_show_about), global);
}
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