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-rw-r--r--hardinfo/info.c248
1 files changed, 248 insertions, 0 deletions
diff --git a/hardinfo/info.c b/hardinfo/info.c
new file mode 100644
index 00000000..ef64a420
--- /dev/null
+++ b/hardinfo/info.c
@@ -0,0 +1,248 @@
+/*
+ * HardInfo - Displays System Information
+ * Copyright (C) 2017 Leandro A. F. Pereira <leandro@hardinfo.org>
+ *
+ * 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, version 2.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "hardinfo.h"
+
+static const gchar *info_column_titles[] = {
+ "TextValue", "Value", "Progress", "Extra1", "Extra2"
+};
+
+struct Info *info_new(void)
+{
+ struct Info *info = g_new0(struct Info, 1);
+
+ info->groups = g_array_new(FALSE, FALSE, sizeof(struct InfoGroup));
+ info->view_type = SHELL_VIEW_NORMAL;
+ info->column_headers_visible = FALSE;
+ info->zebra_visible = FALSE;
+ info->normalize_percentage = TRUE;
+
+ return info;
+}
+
+void info_add_group(struct Info *info, const gchar *group_name, ...)
+{
+ struct InfoGroup group = {
+ .name = group_name,
+ .fields = g_array_new(FALSE, FALSE, sizeof(struct InfoField))
+ };
+ va_list ap;
+
+ va_start(ap, group_name);
+ while (1) {
+ struct InfoField field = va_arg(ap, struct InfoField );
+
+ if (!field.name)
+ break;
+ g_array_append_val(group.fields, field);
+ }
+ va_end(ap);
+
+ g_array_append_val(info->groups, group);
+}
+
+struct InfoField info_field(const gchar *name, gchar *value)
+{
+ return (struct InfoField) {
+ .name = name,
+ .value = value,
+ };
+}
+
+struct InfoField info_field_update(const gchar *name, int update_interval)
+{
+ return (struct InfoField) {
+ .name = name,
+ .value = "...",
+ .update_interval = update_interval,
+ };
+}
+
+struct InfoField info_field_printf(const gchar *name, const gchar *format, ...)
+{
+ gchar *value;
+ va_list ap;
+
+ va_start(ap, format);
+ value = g_strdup_vprintf(format, ap);
+ va_end(ap);
+
+ return (struct InfoField) {
+ .name = name,
+ .value = value,
+ .free_value_on_flatten = TRUE,
+ };
+}
+
+struct InfoField info_field_last(void)
+{
+ return (struct InfoField) {};
+}
+
+void info_add_computed_group(struct Info *info, const gchar *name, const gchar *value)
+{
+ /* This is a scaffolding method: HardInfo should move away from pre-computing
+ * the strings in favor of storing InfoGroups instead; while modules are not
+ * fully converted, use this instead. */
+ struct InfoGroup group = {
+ .name = name,
+ .computed = value,
+ };
+
+ g_array_append_val(info->groups, group);
+}
+
+void info_set_column_title(struct Info *info, const gchar *column, const gchar *title)
+{
+ int i;
+
+ for (i = 0; i < G_N_ELEMENTS(info_column_titles); i++) {
+ if (g_str_equal(info_column_titles[i], column)) {
+ info->column_titles[i] = title;
+ return;
+ }
+ }
+}
+
+void info_set_column_headers_visible(struct Info *info, gboolean setting)
+{
+ info->column_headers_visible = setting;
+}
+
+void info_set_zebra_visible(struct Info *info, gboolean setting)
+{
+ info->zebra_visible = setting;
+}
+
+void info_set_normalize_percentage(struct Info *info, gboolean setting)
+{
+ info->normalize_percentage = setting;
+}
+
+void info_set_view_type(struct Info *info, ShellViewType setting)
+{
+ info->view_type = setting;
+}
+
+void info_set_reload_interval(struct Info *info, int setting)
+{
+ info->reload_interval = setting;
+}
+
+static void flatten_group(GString *output, const struct InfoGroup *group)
+{
+ guint i;
+
+ g_string_append_printf(output, "[%s]\n", group->name);
+
+ if (group->fields) {
+ for (i = 0; i < group->fields->len; i++) {
+ struct InfoField field;
+
+ field = g_array_index(group->fields, struct InfoField, i);
+
+ g_string_append_printf(output, "%s=%s\n", field.name, field.value);
+
+ if (field.free_value_on_flatten)
+ g_free(field.value);
+ }
+ } else if (group->computed) {
+ g_string_append_printf(output, "%s\n", group->computed);
+ }
+}
+
+static void flatten_shell_param(GString *output, const struct InfoGroup *group)
+{
+ guint i;
+
+ if (!group->fields)
+ return;
+
+ for (i = 0; i < group->fields->len; i++) {
+ struct InfoField field;
+
+ field = g_array_index(group->fields, struct InfoField, i);
+
+ if (field.update_interval) {
+ g_string_append_printf(output, "UpdateInterval$%s=%d\n",
+ field.name, field.update_interval);
+ }
+ }
+}
+
+static void flatten_shell_param_global(GString *output, const struct Info *info)
+{
+ int i;
+
+ g_string_append_printf(output, "ViewType=%d\n", info->view_type);
+ g_string_append_printf(output, "ShowColumnHeaders=%s\n",
+ info->column_headers_visible ? "true" : "false");
+
+ if (info->zebra_visible)
+ g_string_append(output, "Zebra=1\n");
+
+ if (info->reload_interval)
+ g_string_append_printf(output, "ReloadInterval=%d\n", info->reload_interval);
+
+ if (!info->normalize_percentage)
+ g_string_append(output, "NormalizePercentage=false\n");
+
+ for (i = 0; i < G_N_ELEMENTS(info_column_titles); i++) {
+ if (!info->column_titles[i])
+ continue;
+
+ g_string_append_printf(output, "ColumnTitle$%s=%s\n",
+ info_column_titles[i], info->column_titles[i]);
+ }
+}
+
+gchar *info_flatten(struct Info *info)
+{
+ /* This is a scaffolding method: eventually the HardInfo shell should
+ * understand a struct Info instead of parsing these strings, which are
+ * brittle and unnecessarily complicates things. Being a temporary
+ * method, no attention is paid to improve the memory allocation
+ * strategy. */
+ GString *values;
+ GString *shell_param;
+ guint i;
+
+ values = g_string_new(NULL);
+ shell_param = g_string_new(NULL);
+
+ if (info->groups) {
+ for (i = 0; i < info->groups->len; i++) {
+ struct InfoGroup group =
+ g_array_index(info->groups, struct InfoGroup, i);
+
+ flatten_group(values, &group);
+ flatten_shell_param(shell_param, &group);
+
+ if (group.fields)
+ g_array_free(group.fields, TRUE);
+ }
+
+ g_array_free(info->groups, TRUE);
+ }
+
+ flatten_shell_param_global(shell_param, info);
+ g_string_append_printf(values, "[$ShellParam$]\n%s", shell_param->str);
+
+ g_string_free(shell_param, TRUE);
+ return g_string_free(values, FALSE);
+}
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