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-rw-r--r--filter/e-filter-datespec.c492
1 files changed, 492 insertions, 0 deletions
diff --git a/filter/e-filter-datespec.c b/filter/e-filter-datespec.c
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+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Authors:
+ * Not Zed <notzed@lostzed.mmc.com.au>
+ * Jeffrey Stedfast <fejj@ximian.com>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+
+#include <gtk/gtk.h>
+#include <glib/gi18n.h>
+#include <glade/glade.h>
+#include <libedataserver/e-sexp.h>
+
+#include "e-util/e-error.h"
+#include "e-util/e-util-private.h"
+
+#include "e-filter-datespec.h"
+#include "e-filter-part.h"
+
+#ifdef G_OS_WIN32
+#define localtime_r(tp,tmp) memcpy(tmp,localtime(tp),sizeof(struct tm))
+#endif
+
+#define E_FILTER_DATESPEC_GET_PRIVATE(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE \
+ ((obj), E_TYPE_FILTER_DATESPEC, EFilterDatespecPrivate))
+
+#define d(x)
+
+typedef struct {
+ guint32 seconds;
+ const gchar *past_singular;
+ const gchar *past_plural;
+ const gchar *future_singular;
+ const gchar *future_plural;
+ gfloat max;
+} timespan;
+
+#ifdef ngettext
+#undef ngettext
+#endif
+
+/* This is a nasty hack trying to keep both ngettext function and xgettext tool happy */
+/* It *will* cause problems if ngettext is a macro */
+#define ngettext(a, b) a, b
+
+static const timespan timespans[] = {
+ { 1, ngettext("1 second ago", "%d seconds ago"), ngettext("1 second in the future", "%d seconds in the future"), 59.0 },
+ { 60, ngettext("1 minute ago", "%d minutes ago"), ngettext("1 minute in the future", "%d minutes in the future"), 59.0 },
+ { 3600, ngettext("1 hour ago", "%d hours ago"), ngettext("1 hour in the future", "%d hours in the future"), 23.0 },
+ { 86400, ngettext("1 day ago", "%d days ago"), ngettext("1 day in the future", "%d days in the future"), 31.0 },
+ { 604800, ngettext("1 week ago", "%d weeks ago"), ngettext("1 week in the future", "%d weeks in the future"), 52.0 },
+ { 2419200, ngettext("1 month ago", "%d months ago"), ngettext("1 month in the future", "%d months in the future"), 12.0 },
+ { 31557600, ngettext("1 year ago", "%d years ago"), ngettext("1 year in the future", "%d years in the future"), 1000.0 },
+};
+
+/* now we let the compiler see the real function call */
+#undef ngettext
+
+#define DAY_INDEX 3
+
+struct _EFilterDatespecPrivate {
+ GtkWidget *label_button;
+ GtkWidget *notebook_type, *combobox_type, *calendar_specify, *spin_relative, *combobox_relative, *combobox_past_future;
+ EFilterDatespecType type;
+ gint span;
+};
+
+static gpointer parent_class;
+
+static gint
+get_best_span (time_t val)
+{
+ gint i;
+
+ for (i=G_N_ELEMENTS (timespans)-1;i>=0;i--) {
+ if (val % timespans[i].seconds == 0)
+ return i;
+ }
+
+ return 0;
+}
+
+/* sets button label */
+static void
+set_button (EFilterDatespec *fds)
+{
+ gchar buf[128];
+ gchar *label = buf;
+
+ switch (fds->type) {
+ case FDST_UNKNOWN:
+ label = _("<click here to select a date>");
+ break;
+ case FDST_NOW:
+ label = _("now");
+ break;
+ case FDST_SPECIFIED: {
+ struct tm tm;
+
+ localtime_r(&fds->value, &tm);
+ /* strftime for date filter display, only needs to show a day date (i.e. no time) */
+ strftime(buf, sizeof(buf), _("%d-%b-%Y"), &tm);
+ break; }
+ case FDST_X_AGO:
+ if (fds->value == 0)
+ label = _("now");
+ else {
+ gint span, count;
+
+ span = get_best_span(fds->value);
+ count = fds->value / timespans[span].seconds;
+ sprintf(buf, ngettext(timespans[span].past_singular, timespans[span].past_plural, count), count);
+ }
+ break;
+ case FDST_X_FUTURE:
+ if (fds->value == 0)
+ label = _("now");
+ else {
+ gint span, count;
+
+ span = get_best_span(fds->value);
+ count = fds->value / timespans[span].seconds;
+ sprintf(buf, ngettext(timespans[span].future_singular, timespans[span].future_plural, count), count);
+ }
+ break;
+ }
+
+ gtk_label_set_text((GtkLabel *)fds->priv->label_button, label);
+}
+
+static void
+get_values (EFilterDatespec *fds)
+{
+ EFilterDatespecPrivate *p = E_FILTER_DATESPEC_GET_PRIVATE (fds);
+
+ switch (fds->priv->type) {
+ case FDST_SPECIFIED: {
+ guint year, month, day;
+ struct tm tm;
+
+ gtk_calendar_get_date((GtkCalendar *)p->calendar_specify, &year, &month, &day);
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_mday = day;
+ tm.tm_year = year - 1900;
+ tm.tm_mon = month;
+ fds->value = mktime(&tm);
+ /* what about timezone? */
+ break; }
+ case FDST_X_FUTURE:
+ case FDST_X_AGO: {
+ gint val;
+
+ val = gtk_spin_button_get_value_as_int((GtkSpinButton *)p->spin_relative);
+ fds->value = timespans[p->span].seconds * val;
+ break; }
+ case FDST_NOW:
+ default:
+ break;
+ }
+
+ fds->type = p->type;
+}
+
+static void
+set_values (EFilterDatespec *fds)
+{
+ gint note_type;
+
+ EFilterDatespecPrivate *p = E_FILTER_DATESPEC_GET_PRIVATE (fds);
+
+ p->type = fds->type==FDST_UNKNOWN ? FDST_NOW : fds->type;
+
+ note_type = p->type==FDST_X_FUTURE ? FDST_X_AGO : p->type; /* FUTURE and AGO use the same notebook pages/etc. */
+
+ switch (p->type) {
+ case FDST_NOW:
+ case FDST_UNKNOWN:
+ /* noop */
+ break;
+ case FDST_SPECIFIED:
+ {
+ struct tm tm;
+
+ localtime_r(&fds->value, &tm);
+ gtk_calendar_select_month((GtkCalendar*)p->calendar_specify, tm.tm_mon, tm.tm_year + 1900);
+ gtk_calendar_select_day((GtkCalendar*)p->calendar_specify, tm.tm_mday);
+ break;
+ }
+ case FDST_X_AGO:
+ p->span = get_best_span(fds->value);
+ gtk_spin_button_set_value((GtkSpinButton*)p->spin_relative, fds->value/timespans[p->span].seconds);
+ gtk_combo_box_set_active (GTK_COMBO_BOX (p->combobox_relative), p->span);
+ gtk_combo_box_set_active (GTK_COMBO_BOX (p->combobox_past_future), 0);
+ break;
+ case FDST_X_FUTURE:
+ p->span = get_best_span(fds->value);
+ gtk_spin_button_set_value((GtkSpinButton*)p->spin_relative, fds->value/timespans[p->span].seconds);
+ gtk_combo_box_set_active (GTK_COMBO_BOX (p->combobox_relative), p->span);
+ gtk_combo_box_set_active (GTK_COMBO_BOX (p->combobox_past_future), 1);
+ break;
+ }
+
+ gtk_notebook_set_current_page ((GtkNotebook*) p->notebook_type, note_type);
+ gtk_combo_box_set_active (GTK_COMBO_BOX (p->combobox_type), note_type);
+}
+
+static void
+set_combobox_type (GtkComboBox *combobox, EFilterDatespec *fds)
+{
+ fds->priv->type = gtk_combo_box_get_active (combobox);
+ gtk_notebook_set_current_page ((GtkNotebook*) fds->priv->notebook_type, fds->priv->type);
+}
+
+static void
+set_combobox_relative (GtkComboBox *combobox, EFilterDatespec *fds)
+{
+ fds->priv->span = gtk_combo_box_get_active (combobox);
+}
+
+static void
+set_combobox_past_future (GtkComboBox *combobox, EFilterDatespec *fds)
+{
+ if (gtk_combo_box_get_active (combobox) == 0)
+ fds->type = fds->priv->type = FDST_X_AGO;
+ else
+ fds->type = fds->priv->type = FDST_X_FUTURE;
+}
+
+static void
+button_clicked (GtkButton *button, EFilterDatespec *fds)
+{
+ EFilterDatespecPrivate *p = E_FILTER_DATESPEC_GET_PRIVATE (fds);
+ GtkWidget *content_area;
+ GtkWidget *toplevel;
+ GtkDialog *dialog;
+ GladeXML *gui;
+ gchar *filter_glade = g_build_filename (EVOLUTION_GLADEDIR,
+ "filter.glade",
+ NULL);
+
+ gui = glade_xml_new (filter_glade, "filter_datespec", NULL);
+ g_free (filter_glade);
+ toplevel = glade_xml_get_widget (gui, "filter_datespec");
+
+ dialog = (GtkDialog *) gtk_dialog_new ();
+ gtk_window_set_title ((GtkWindow *) dialog, _("Select a time to compare against"));
+ gtk_dialog_add_buttons (dialog,
+ GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+ GTK_STOCK_OK, GTK_RESPONSE_OK,
+ NULL);
+ gtk_dialog_set_has_separator (dialog, FALSE);
+
+ p->notebook_type = glade_xml_get_widget (gui, "notebook_type");
+ p->combobox_type = glade_xml_get_widget (gui, "combobox_type");
+ p->calendar_specify = glade_xml_get_widget (gui, "calendar_specify");
+ p->spin_relative = glade_xml_get_widget (gui, "spin_relative");
+ p->combobox_relative = glade_xml_get_widget (gui, "combobox_relative");
+ p->combobox_past_future = glade_xml_get_widget (gui, "combobox_past_future");
+
+ set_values (fds);
+
+ g_signal_connect (p->combobox_type, "changed", G_CALLBACK (set_combobox_type), fds);
+ g_signal_connect (p->combobox_relative, "changed", G_CALLBACK (set_combobox_relative), fds);
+ g_signal_connect (p->combobox_past_future, "changed", G_CALLBACK (set_combobox_past_future), fds);
+
+ content_area = gtk_dialog_get_content_area (dialog);
+ gtk_box_pack_start (GTK_BOX (content_area), toplevel, TRUE, TRUE, 3);
+
+ if (gtk_dialog_run (dialog) == GTK_RESPONSE_OK) {
+ get_values (fds);
+ set_button (fds);
+ }
+
+ gtk_widget_destroy ((GtkWidget *)dialog);
+}
+
+static gboolean
+filter_datespec_validate (EFilterElement *element,
+ GtkWindow *error_parent)
+{
+ EFilterDatespec *fds = E_FILTER_DATESPEC (element);
+ gboolean valid;
+
+ valid = fds->type != FDST_UNKNOWN;
+ if (!valid) {
+ e_error_run (error_parent, "filter:no-date", NULL);
+ }
+
+ return valid;
+}
+
+static gint
+filter_datespec_eq (EFilterElement *element_a,
+ EFilterElement *element_b)
+{
+ EFilterDatespec *datespec_a = E_FILTER_DATESPEC (element_a);
+ EFilterDatespec *datespec_b = E_FILTER_DATESPEC (element_b);
+
+ /* Chain up to parent's eq() method. */
+ if (!E_FILTER_ELEMENT_CLASS (parent_class)->eq (element_a, element_b))
+ return FALSE;
+
+ return (datespec_a->type == datespec_b->type) &&
+ (datespec_a->value == datespec_b->value);
+}
+
+static xmlNodePtr
+filter_datespec_xml_encode (EFilterElement *element)
+{
+ xmlNodePtr value, work;
+ EFilterDatespec *fds = E_FILTER_DATESPEC (element);
+ gchar str[32];
+
+ d(printf ("Encoding datespec as xml\n"));
+
+ value = xmlNewNode (NULL, (xmlChar *)"value");
+ xmlSetProp (value, (xmlChar *)"name", (xmlChar *)element->name);
+ xmlSetProp (value, (xmlChar *)"type", (xmlChar *)"datespec");
+
+ work = xmlNewChild (value, NULL, (xmlChar *)"datespec", NULL);
+ sprintf (str, "%d", fds->type);
+ xmlSetProp (work, (xmlChar *)"type", (xmlChar *)str);
+ sprintf (str, "%d", (gint)fds->value);
+ xmlSetProp (work, (xmlChar *)"value", (xmlChar *)str);
+
+ return value;
+}
+
+static gint
+filter_datespec_xml_decode (EFilterElement *element,
+ xmlNodePtr node)
+{
+ EFilterDatespec *fds = E_FILTER_DATESPEC (element);
+ xmlNodePtr n;
+ xmlChar *val;
+
+ d(printf ("Decoding datespec from xml %p\n", element));
+
+ xmlFree (element->name);
+ element->name = (gchar *)xmlGetProp (node, (xmlChar *)"name");
+
+ n = node->children;
+ while (n) {
+ if (!strcmp ((gchar *)n->name, "datespec")) {
+ val = xmlGetProp (n, (xmlChar *)"type");
+ fds->type = atoi ((gchar *)val);
+ xmlFree (val);
+ val = xmlGetProp (n, (xmlChar *)"value");
+ fds->value = atoi ((gchar *)val);
+ xmlFree (val);
+ break;
+ }
+ n = n->next;
+ }
+
+ return 0;
+}
+
+static GtkWidget *
+filter_datespec_get_widget (EFilterElement *element)
+{
+ EFilterDatespec *fds = E_FILTER_DATESPEC (element);
+ GtkWidget *button;
+
+ fds->priv->label_button = gtk_label_new ("");
+ gtk_misc_set_alignment (GTK_MISC (fds->priv->label_button), 0.5, 0.5);
+ set_button(fds);
+
+ button = gtk_button_new();
+ gtk_container_add (GTK_CONTAINER (button), fds->priv->label_button);
+ g_signal_connect (button, "clicked", G_CALLBACK (button_clicked), fds);
+
+ gtk_widget_show (button);
+ gtk_widget_show (fds->priv->label_button);
+
+ return button;
+}
+
+static void
+filter_datespec_format_sexp (EFilterElement *element,
+ GString *out)
+{
+ EFilterDatespec *fds = E_FILTER_DATESPEC (element);
+
+ switch (fds->type) {
+ case FDST_UNKNOWN:
+ g_warning ("user hasn't selected a datespec yet!");
+ /* fall through */
+ case FDST_NOW:
+ g_string_append (out, "(get-current-date)");
+ break;
+ case FDST_SPECIFIED:
+ g_string_append_printf (out, "%d", (gint) fds->value);
+ break;
+ case FDST_X_AGO:
+ g_string_append_printf (
+ out, "(- (get-current-date) %d)", (gint) fds->value);
+ break;
+ case FDST_X_FUTURE:
+ g_string_append_printf (
+ out, "(+ (get-current-date) %d)", (gint) fds->value);
+ break;
+ }
+}
+
+static void
+filter_datespec_class_init (EFilterDatespecClass *class)
+{
+ EFilterElementClass *filter_element_class;
+
+ parent_class = g_type_class_peek_parent (class);
+ g_type_class_add_private (class, sizeof (EFilterDatespecPrivate));
+
+ filter_element_class = E_FILTER_ELEMENT_CLASS (class);
+ filter_element_class->validate = filter_datespec_validate;
+ filter_element_class->eq = filter_datespec_eq;
+ filter_element_class->xml_encode = filter_datespec_xml_encode;
+ filter_element_class->xml_decode = filter_datespec_xml_decode;
+ filter_element_class->get_widget = filter_datespec_get_widget;
+ filter_element_class->format_sexp = filter_datespec_format_sexp;
+}
+
+static void
+filter_datespec_init (EFilterDatespec *datespec)
+{
+ datespec->priv = E_FILTER_DATESPEC_GET_PRIVATE (datespec);
+ datespec->type = FDST_UNKNOWN;
+}
+
+GType
+e_filter_datespec_get_type (void)
+{
+ static GType type = 0;
+
+ if (G_UNLIKELY (type == 0)) {
+ static const GTypeInfo type_info = {
+ sizeof (EFilterDatespecClass),
+ (GBaseInitFunc) NULL,
+ (GBaseFinalizeFunc) NULL,
+ (GClassInitFunc) filter_datespec_class_init,
+ (GClassFinalizeFunc) NULL,
+ NULL, /* class_data */
+ sizeof (EFilterDatespec),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) filter_datespec_init,
+ NULL /* value_table */
+ };
+
+ type = g_type_register_static (
+ E_TYPE_FILTER_ELEMENT, "EFilterDatespec", &type_info, 0);
+ }
+
+ return type;
+}
+
+/**
+ * filter_datespec_new:
+ *
+ * Create a new EFilterDatespec object.
+ *
+ * Return value: A new #EFilterDatespec object.
+ **/
+EFilterDatespec *
+e_filter_datespec_new (void)
+{
+ return g_object_new (E_TYPE_FILTER_DATESPEC, NULL);
+}