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authorDamon Chaplin <damon@karuna.freeserve.co.uk>1999-12-20 05:13:19 +0800
committerDamon Chaplin <damon@src.gnome.org>1999-12-20 05:13:19 +0800
commitc485df7554158379bbbd3c60d232a0612f786437 (patch)
treebc49f47112f119a8557cd7ae599efc310d51e21f /widgets/meeting-time-sel/e-meeting-time-sel.c
parent46a1a3ad948533ad7c8e3b4de6405cc9a2885864 (diff)
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added widgets/meeting-time-sel/Makefile
1999-12-19 Damon Chaplin <damon@karuna.freeserve.co.uk> * configure.in (AC_OUTPUT): added widgets/meeting-time-sel/Makefile In widgets directory: 1999-12-19 Damon Chaplin <damon@karuna.freeserve.co.uk> * Makefile.am (SUBDIRS): created SUBDIRS with meeting-time-sel. * meeting-time-sel/Makefile.am: * meeting-time-sel/.cvsignore: * meeting-time-sel/e-meeting-time-sel.h: * meeting-time-sel/e-meeting-time-sel.c: * meeting-time-sel/e-meeting-time-sel-item.h: * meeting-time-sel/e-meeting-time-sel-item.c: * meeting-time-sel/e-meeting-time-sel-list-item.h: * meeting-time-sel/e-meeting-time-sel-list-item.c: * meeting-time-sel/e-meeting-time-sel-mail.xpm: * meeting-time-sel/e-meeting-time-sel-no-mail.xpm: * meeting-time-sel/test-meeting-time-sel.c: new files implementing the meeting time selector. svn path=/trunk/; revision=1505
Diffstat (limited to 'widgets/meeting-time-sel/e-meeting-time-sel.c')
-rw-r--r--widgets/meeting-time-sel/e-meeting-time-sel.c3065
1 files changed, 3065 insertions, 0 deletions
diff --git a/widgets/meeting-time-sel/e-meeting-time-sel.c b/widgets/meeting-time-sel/e-meeting-time-sel.c
new file mode 100644
index 0000000000..86f81cc80e
--- /dev/null
+++ b/widgets/meeting-time-sel/e-meeting-time-sel.c
@@ -0,0 +1,3065 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ * Author :
+ * Damon Chaplin <damon@gtk.org>
+ *
+ * Copyright 1999, Helix Code, Inc.
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <gtk/gtkalignment.h>
+#include <gtk/gtkarrow.h>
+#include <gtk/gtkbutton.h>
+#include <gtk/gtkdrawingarea.h>
+#include <gtk/gtkentry.h>
+#include <gtk/gtkhbox.h>
+#include <gtk/gtkhscrollbar.h>
+#include <gtk/gtkhseparator.h>
+#include <gtk/gtklabel.h>
+#include <gtk/gtkmenu.h>
+#include <gtk/gtkradiomenuitem.h>
+#include <gtk/gtksignal.h>
+#include <gtk/gtkvbox.h>
+#include <gtk/gtkvscrollbar.h>
+#include <libgnomeui/gnome-dateedit.h>
+#include <libgnome/gnome-i18n.h>
+#include <libgnomeui/gnome-canvas-widget.h>
+
+#include "e-meeting-time-sel.h"
+#include "e-meeting-time-sel-item.h"
+#include "e-meeting-time-sel-list-item.h"
+
+/* An array of hour strings, "0:00" .. "23:00". */
+const gchar *EMeetingTimeSelectorHours[24] = {
+ "0:00", "1:00", "2:00", "3:00", "4:00", "5:00", "6:00", "7:00",
+ "8:00", "9:00", "10:00", "11:00", "12:00", "13:00", "14:00", "15:00",
+ "16:00", "17:00", "18:00", "19:00", "20:00", "21:00", "22:00", "23:00"
+};
+
+/* The number of days shown in the entire canvas. */
+#define E_MEETING_TIME_SELECTOR_DAYS_SHOWN 365
+
+#define E_MEETING_TIME_SELECTOR_ENTRY_INNER_BORDER 2
+
+/* This is the number of pixels between the mouse has to move before the
+ scroll speed is incremented. */
+#define E_MEETING_TIME_SELECTOR_SCROLL_INCREMENT_WIDTH 10
+
+/* This is the maximum scrolling speed. */
+#define E_MEETING_TIME_SELECTOR_MAX_SCROLL_SPEED 4
+
+
+static void e_meeting_time_selector_class_init (EMeetingTimeSelectorClass * klass);
+static void e_meeting_time_selector_init (EMeetingTimeSelector * mts);
+static void e_meeting_time_selector_destroy (GtkObject *object);
+static void e_meeting_time_selector_alloc_named_color (EMeetingTimeSelector * mts,
+ const char *name, GdkColor *c);
+static void e_meeting_time_selector_add_key_color (EMeetingTimeSelector * mts,
+ GtkWidget *hbox,
+ gchar *label_text,
+ GdkColor *color);
+static gint e_meeting_time_selector_expose_key_color (GtkWidget *darea,
+ GdkEventExpose *event,
+ GdkColor *color);
+static gint e_meeting_time_selector_expose_title_bar (GtkWidget *darea,
+ GdkEventExpose *event,
+ gpointer data);
+static void e_meeting_time_selector_options_menu_detacher (GtkWidget *widget,
+ GtkMenu *menu);
+static void e_meeting_time_selector_autopick_menu_detacher (GtkWidget *widget,
+ GtkMenu *menu);
+static void e_meeting_time_selector_realize (GtkWidget *widget);
+static void e_meeting_time_selector_unrealize (GtkWidget *widget);
+static void e_meeting_time_selector_style_set (GtkWidget *widget,
+ GtkStyle *previous_style);
+static gint e_meeting_time_selector_expose_event (GtkWidget *widget,
+ GdkEventExpose *event);
+static void e_meeting_time_selector_hadjustment_changed (GtkAdjustment *adjustment,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_vadjustment_changed (GtkAdjustment *adjustment,
+ EMeetingTimeSelector *mts);
+
+static void e_meeting_time_selector_on_canvas_realized (GtkWidget *widget,
+ EMeetingTimeSelector *mts);
+
+static gint e_meeting_time_selector_compare_period_starts (const void *arg1,
+ const void *arg2);
+#if 0
+static gint e_meeting_time_selector_compare_periods (const void *arg1,
+ const void *arg2);
+#endif
+static gint e_meeting_time_selector_compare_times (EMeetingTimeSelectorTime *time1,
+ EMeetingTimeSelectorTime *time2);
+static void e_meeting_time_selector_on_options_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_options_menu_position_callback (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gpointer user_data);
+static void e_meeting_time_selector_on_zoomed_out_toggled (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_working_hours_toggled (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_invite_others_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_update_free_busy (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_autopick_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_autopick_menu_position_callback (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gpointer user_data);
+static void e_meeting_time_selector_on_autopick_option_toggled (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_prev_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_next_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_autopick (EMeetingTimeSelector *mts,
+ gboolean forward);
+static void e_meeting_time_selector_calculate_time_difference (EMeetingTimeSelectorTime *start,
+ EMeetingTimeSelectorTime *end,
+ gint *days,
+ gint *hours,
+ gint *minutes);
+static void e_meeting_time_selector_find_nearest_interval (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *start_time,
+ EMeetingTimeSelectorTime *end_time,
+ gint days, gint hours, gint mins);
+static void e_meeting_time_selector_find_nearest_interval_backward (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *start_time,
+ EMeetingTimeSelectorTime *end_time,
+ gint days, gint hours, gint mins);
+static void e_meeting_time_selector_adjust_time (EMeetingTimeSelectorTime *mtstime,
+ gint days, gint hours, gint minutes);
+static EMeetingTimeSelectorPeriod* e_meeting_time_selector_find_time_clash (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorAttendee *attendee,
+ EMeetingTimeSelectorTime *start_time,
+ EMeetingTimeSelectorTime *end_time);
+
+
+static void e_meeting_time_selector_recalc_grid (EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_recalc_date_format (EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_save_position (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *mtstime);
+static void e_meeting_time_selector_restore_position (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *mtstime);
+static void e_meeting_time_selector_on_start_time_changed (GtkWidget *widget,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_end_time_changed (GtkWidget *widget,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_update_date_popup_menus (EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_attendees_list_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_on_canvas_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation,
+ EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_update_main_canvas_scroll_region (EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_update_attendees_list_scroll_region (EMeetingTimeSelector *mts);
+static gboolean e_meeting_time_selector_timeout_handler (gpointer data);
+static void e_meeting_time_selector_update_start_date_edit (EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_update_end_date_edit (EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_ensure_meeting_time_shown (EMeetingTimeSelector *mts);
+static void e_meeting_time_selector_update_dates_shown (EMeetingTimeSelector *mts);
+
+static void e_meeting_time_selector_update_attendees_list_positions (EMeetingTimeSelector *mts);
+
+static GtkTableClass *e_meeting_time_selector_parent_class;
+
+
+GtkType
+e_meeting_time_selector_get_type (void)
+{
+ static guint e_meeting_time_selector_type = 0;
+
+ if (!e_meeting_time_selector_type) {
+ GtkTypeInfo e_meeting_time_selector_info =
+ {
+ "EMeetingTimeSelector",
+ sizeof (EMeetingTimeSelector),
+ sizeof (EMeetingTimeSelectorClass),
+ (GtkClassInitFunc) e_meeting_time_selector_class_init,
+ (GtkObjectInitFunc) e_meeting_time_selector_init,
+ /* reserved_1 */ NULL,
+ /* reserved_2 */ NULL,
+ (GtkClassInitFunc) NULL,
+ };
+
+ e_meeting_time_selector_type = gtk_type_unique (GTK_TYPE_TABLE,
+ &e_meeting_time_selector_info);
+ }
+ return e_meeting_time_selector_type;
+}
+
+
+static void
+e_meeting_time_selector_class_init (EMeetingTimeSelectorClass * klass)
+{
+ GtkObjectClass *object_class;
+ GtkWidgetClass *widget_class;
+
+ e_meeting_time_selector_parent_class = gtk_type_class (gtk_table_get_type());
+
+ object_class = (GtkObjectClass *) klass;
+ widget_class = (GtkWidgetClass *) klass;
+
+ object_class->destroy = e_meeting_time_selector_destroy;
+
+ widget_class->realize = e_meeting_time_selector_realize;
+ widget_class->unrealize = e_meeting_time_selector_unrealize;
+ widget_class->style_set = e_meeting_time_selector_style_set;
+ widget_class->expose_event = e_meeting_time_selector_expose_event;
+}
+
+
+static void
+e_meeting_time_selector_init (EMeetingTimeSelector * mts)
+{
+ GtkWidget *hbox, *separator, *button, *label, *table;
+ GtkWidget *alignment, *child_hbox, *arrow, *menuitem;
+ GSList *group;
+ GdkVisual *visual;
+ GdkColormap *colormap;
+ guint accel_key;
+ GtkAccelGroup *menu_accel_group;
+ time_t meeting_start_time;
+ struct tm *meeting_start_tm;
+ guchar stipple_bits[] = {
+ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
+ };
+
+ mts->accel_group = gtk_accel_group_new ();
+
+ mts->attendees = g_array_new (FALSE, FALSE,
+ sizeof (EMeetingTimeSelectorAttendee));
+
+ mts->working_hours_only = TRUE;
+ mts->day_start_hour = 9;
+ mts->day_start_minute = 0;
+ mts->day_end_hour = 18;
+ mts->day_end_minute = 0;
+ mts->zoomed_out = FALSE;
+ mts->dragging_position = E_MEETING_TIME_SELECTOR_POS_NONE;
+
+ /* The default meeting time is the nearest half-hour interval in the
+ future, in working hours. */
+ meeting_start_time = time (NULL);
+ g_date_clear (&mts->meeting_start_time.date, 1);
+ g_date_set_time (&mts->meeting_start_time.date, meeting_start_time);
+ meeting_start_tm = localtime (&meeting_start_time);
+ mts->meeting_start_time.hour = meeting_start_tm->tm_hour;
+ mts->meeting_start_time.minute = meeting_start_tm->tm_min;
+
+ e_meeting_time_selector_find_nearest_interval (mts, &mts->meeting_start_time,
+ &mts->meeting_end_time,
+ 0, 0, 30);
+
+ e_meeting_time_selector_update_dates_shown (mts);
+
+ mts->meeting_positions_valid = FALSE;
+
+ mts->row_height = 30;
+ mts->col_width = 50;
+ mts->day_width = 50 * 24 + 1;
+
+ mts->auto_scroll_timeout_id = 0;
+
+
+ mts->attendees_title_bar_vbox = gtk_vbox_new (FALSE, 2);
+ /* Add some horizontal padding for the shadow around the display. */
+ gtk_table_attach (GTK_TABLE (mts),
+ mts->attendees_title_bar_vbox,
+ 0, 1, 0, 1, GTK_EXPAND | GTK_FILL, GTK_FILL, 2, 0);
+ gtk_widget_show (mts->attendees_title_bar_vbox);
+
+ mts->attendees_title_bar = gtk_drawing_area_new ();
+ gtk_box_pack_end (GTK_BOX (mts->attendees_title_bar_vbox),
+ mts->attendees_title_bar, FALSE, FALSE, 0);
+ gtk_widget_show (mts->attendees_title_bar);
+ gtk_signal_connect (GTK_OBJECT (mts->attendees_title_bar),
+ "expose_event",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_expose_title_bar), mts);
+
+ mts->attendees_list = gnome_canvas_new ();
+ /* Add some horizontal padding for the shadow around the display. */
+ gtk_table_attach (GTK_TABLE (mts), mts->attendees_list,
+ 0, 1, 1, 2,
+ GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 2, 0);
+ gtk_widget_show (mts->attendees_list);
+ gtk_signal_connect (GTK_OBJECT (mts->attendees_list), "realize",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_canvas_realized), mts);
+ gtk_signal_connect (GTK_OBJECT (mts->attendees_list), "size_allocate",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_attendees_list_size_allocate), mts);
+
+ /* Create the item in the list canvas. */
+ gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (mts->attendees_list)->root),
+ e_meeting_time_selector_list_item_get_type (),
+ "EMeetingTimeSelectorListItem::meeting_time_selector", mts,
+ NULL);
+
+ mts->display_top = gnome_canvas_new ();
+ gnome_canvas_set_scroll_region (GNOME_CANVAS (mts->display_top),
+ 0, 0,
+ mts->day_width * E_MEETING_TIME_SELECTOR_DAYS_SHOWN,
+ mts->row_height * 3);
+ /* Add some horizontal padding for the shadow around the display. */
+ gtk_table_attach (GTK_TABLE (mts), mts->display_top,
+ 1, 4, 0, 1, GTK_EXPAND | GTK_FILL, 0, 2, 0);
+ gtk_widget_show (mts->display_top);
+ gtk_signal_connect (GTK_OBJECT (mts->display_top), "realize",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_canvas_realized), mts);
+
+ mts->display_main = gnome_canvas_new ();
+ e_meeting_time_selector_update_main_canvas_scroll_region (mts);
+ /* Add some horizontal padding for the shadow around the display. */
+ gtk_table_attach (GTK_TABLE (mts), mts->display_main,
+ 1, 4, 1, 2,
+ GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 2, 0);
+ gtk_widget_show (mts->display_main);
+ gtk_signal_connect (GTK_OBJECT (mts->display_main), "realize",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_canvas_realized), mts);
+ gtk_signal_connect (GTK_OBJECT (mts->display_main), "size_allocate",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_canvas_size_allocate), mts);
+
+ mts->hscrollbar = gtk_hscrollbar_new (GTK_LAYOUT (mts->display_main)->hadjustment);
+ gtk_table_attach (GTK_TABLE (mts), mts->hscrollbar,
+ 1, 4, 2, 3, GTK_EXPAND | GTK_FILL, 0, 0, 0);
+ gtk_widget_show (mts->hscrollbar);
+
+ mts->vscrollbar = gtk_vscrollbar_new (GTK_LAYOUT (mts->display_main)->vadjustment);
+ gtk_table_attach (GTK_TABLE (mts), mts->vscrollbar,
+ 4, 5, 1, 2, 0, GTK_EXPAND | GTK_FILL, 0, 0);
+ gtk_widget_show (mts->vscrollbar);
+
+ /* Create the item in the top canvas. */
+ gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (mts->display_top)->root),
+ e_meeting_time_selector_item_get_type (),
+ "EMeetingTimeSelectorItem::meeting_time_selector", mts,
+ NULL);
+
+ /* Create the item in the main canvas. */
+ gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (mts->display_main)->root),
+ e_meeting_time_selector_item_get_type (),
+ "EMeetingTimeSelectorItem::meeting_time_selector", mts,
+ NULL);
+
+ /* Create the hbox containing the color key. */
+ hbox = gtk_hbox_new (FALSE, 2);
+ gtk_table_attach (GTK_TABLE (mts), hbox,
+ 1, 4, 3, 4, GTK_FILL, 0, 0, 8);
+ gtk_widget_show (hbox);
+
+ e_meeting_time_selector_add_key_color (mts, hbox, _("Tentative"), &mts->busy_colors[E_MEETING_TIME_SELECTOR_BUSY_TENTATIVE]);
+ e_meeting_time_selector_add_key_color (mts, hbox, _("Busy"), &mts->busy_colors[E_MEETING_TIME_SELECTOR_BUSY_BUSY]);
+ e_meeting_time_selector_add_key_color (mts, hbox, _("Out of Office"), &mts->busy_colors[E_MEETING_TIME_SELECTOR_BUSY_OUT_OF_OFFICE]);
+ e_meeting_time_selector_add_key_color (mts, hbox, _("No Information"),
+ NULL);
+
+ separator = gtk_hseparator_new ();
+ gtk_table_attach (GTK_TABLE (mts), separator,
+ 0, 5, 4, 5, GTK_FILL, 0, 0, 0);
+ gtk_widget_show (separator);
+
+ /* Create the Invite Others & Options buttons on the left. */
+ hbox = gtk_hbox_new (FALSE, 4);
+ gtk_table_attach (GTK_TABLE (mts), hbox,
+ 0, 1, 3, 4, GTK_FILL, 0, 0, 0);
+ gtk_widget_show (hbox);
+
+ button = gtk_button_new_with_label ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (button)->child),
+ _("_Invite Others..."));
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+ gtk_widget_add_accelerator (button, "clicked", mts->accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (button), "clicked",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_invite_others_button_clicked), mts);
+
+ mts->options_button = gtk_button_new ();
+ gtk_box_pack_start (GTK_BOX (hbox), mts->options_button, TRUE, TRUE, 0);
+ gtk_widget_show (mts->options_button);
+
+ gtk_signal_connect (GTK_OBJECT (mts->options_button), "clicked",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_options_button_clicked), mts);
+
+ child_hbox = gtk_hbox_new (FALSE, 2);
+ gtk_container_add (GTK_CONTAINER (mts->options_button), child_hbox);
+ gtk_widget_show (child_hbox);
+
+ label = gtk_label_new ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (label), _("_Options"));
+ gtk_box_pack_start (GTK_BOX (child_hbox), label, TRUE, TRUE, 0);
+ gtk_widget_show (label);
+ gtk_widget_add_accelerator (mts->options_button, "clicked", mts->accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+
+ arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
+ gtk_box_pack_start (GTK_BOX (child_hbox), arrow, FALSE, FALSE, 2);
+ gtk_widget_show (arrow);
+
+ /* Create the Options menu. */
+ mts->options_menu = gtk_menu_new ();
+ gtk_menu_attach_to_widget (GTK_MENU (mts->options_menu), mts->options_button,
+ e_meeting_time_selector_options_menu_detacher);
+ menu_accel_group = gtk_menu_ensure_uline_accel_group (GTK_MENU (mts->options_menu));
+
+ menuitem = gtk_check_menu_item_new_with_label ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (menuitem)->child), _("Show _Only Working Hours"));
+ gtk_menu_append (GTK_MENU (mts->options_menu), menuitem);
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem),
+ mts->working_hours_only);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, 0, 0);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (menuitem), "toggled",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_working_hours_toggled), mts);
+ gtk_widget_show (menuitem);
+
+ menuitem = gtk_check_menu_item_new_with_label ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (menuitem)->child), _("Show _Zoomed Out"));
+ gtk_menu_append (GTK_MENU (mts->options_menu), menuitem);
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem),
+ mts->zoomed_out);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, 0, 0);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (menuitem), "toggled",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_zoomed_out_toggled), mts);
+ gtk_widget_show (menuitem);
+
+ menuitem = gtk_menu_item_new ();
+ gtk_menu_append (GTK_MENU (mts->options_menu), menuitem);
+ gtk_widget_set_sensitive (menuitem, FALSE);
+ gtk_widget_show (menuitem);
+
+ menuitem = gtk_menu_item_new_with_label ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (menuitem)->child), _("_Update Free/Busy"));
+ gtk_menu_append (GTK_MENU (mts->options_menu), menuitem);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, 0, 0);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_update_free_busy), mts);
+ gtk_widget_show (menuitem);
+
+ /* Create the 3 AutoPick buttons on the left. */
+ hbox = gtk_hbox_new (FALSE, 0);
+ gtk_table_attach (GTK_TABLE (mts), hbox,
+ 0, 1, 5, 6, GTK_FILL, 0, 0, 0);
+ gtk_widget_show (hbox);
+
+ button = gtk_button_new_with_label ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (button)->child),
+ _("_<<"));
+ gtk_widget_add_accelerator (button, "clicked", mts->accel_group,
+ accel_key, GDK_MOD1_MASK | GDK_SHIFT_MASK, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+ gtk_signal_connect (GTK_OBJECT (button), "clicked",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_prev_button_clicked), mts);
+
+ mts->autopick_button = gtk_button_new ();
+ gtk_box_pack_start (GTK_BOX (hbox), mts->autopick_button, TRUE, TRUE, 0);
+ gtk_widget_show (mts->autopick_button);
+
+ child_hbox = gtk_hbox_new (FALSE, 2);
+ gtk_container_add (GTK_CONTAINER (mts->autopick_button), child_hbox);
+ gtk_widget_show (child_hbox);
+
+ label = gtk_label_new ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (label), _("_Autopick"));
+ gtk_box_pack_start (GTK_BOX (child_hbox), label, TRUE, TRUE, 0);
+ gtk_widget_show (label);
+ gtk_widget_add_accelerator (mts->autopick_button, "clicked", mts->accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (mts->autopick_button), "clicked",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_autopick_button_clicked), mts);
+
+ arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
+ gtk_box_pack_start (GTK_BOX (child_hbox), arrow, FALSE, FALSE, 2);
+ gtk_widget_show (arrow);
+
+ button = gtk_button_new_with_label ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (button)->child),
+ _(">_>"));
+ gtk_widget_add_accelerator (button, "clicked", mts->accel_group,
+ accel_key, GDK_MOD1_MASK | GDK_SHIFT_MASK, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+ gtk_signal_connect (GTK_OBJECT (button), "clicked",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_next_button_clicked), mts);
+
+ /* Create the Autopick menu. */
+ mts->autopick_menu = gtk_menu_new ();
+ gtk_menu_attach_to_widget (GTK_MENU (mts->autopick_menu), mts->autopick_button,
+ e_meeting_time_selector_autopick_menu_detacher);
+ menu_accel_group = gtk_menu_ensure_uline_accel_group (GTK_MENU (mts->autopick_menu));
+
+ menuitem = gtk_radio_menu_item_new_with_label (NULL, "");
+ mts->autopick_all_item = menuitem;
+ group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (menuitem));
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (menuitem)->child), _("_All People and Resources"));
+ gtk_menu_append (GTK_MENU (mts->autopick_menu), menuitem);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, 0, 0);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (menuitem), "toggled",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_autopick_option_toggled), mts);
+ gtk_widget_show (menuitem);
+
+ menuitem = gtk_radio_menu_item_new_with_label (group, "");
+ mts->autopick_all_people_one_resource_item = menuitem;
+ group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (menuitem));
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (menuitem)->child), _("All _People and One Resource"));
+ gtk_menu_append (GTK_MENU (mts->autopick_menu), menuitem);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, 0, 0);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (menuitem), "toggled",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_autopick_option_toggled), mts);
+ gtk_widget_show (menuitem);
+
+ menuitem = gtk_radio_menu_item_new_with_label (group, "");
+ mts->autopick_required_people_item = menuitem;
+ group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (menuitem));
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (menuitem)->child), _("_Required People"));
+ gtk_menu_append (GTK_MENU (mts->autopick_menu), menuitem);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, 0, 0);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_autopick_option_toggled), mts);
+ gtk_widget_show (menuitem);
+
+ menuitem = gtk_radio_menu_item_new_with_label (group, "");
+ mts->autopick_required_people_one_resource_item = menuitem;
+ group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (menuitem));
+ accel_key = gtk_label_parse_uline (GTK_LABEL (GTK_BIN (menuitem)->child), _("Required People and _One Resource"));
+ gtk_menu_append (GTK_MENU (mts->autopick_menu), menuitem);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, 0, 0);
+ gtk_widget_add_accelerator (menuitem, "activate", menu_accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+ gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_autopick_option_toggled), mts);
+ gtk_widget_show (menuitem);
+
+ /* Create the date entry fields on the right. */
+ alignment = gtk_alignment_new (0.5, 0.5, 0, 0);
+ gtk_table_attach (GTK_TABLE (mts), alignment,
+ 1, 4, 5, 6, GTK_FILL, 0, 0, 0);
+ gtk_widget_show (alignment);
+
+ table = gtk_table_new (2, 2, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 4);
+ gtk_container_add (GTK_CONTAINER (alignment), table);
+ gtk_widget_show (table);
+
+ label = gtk_label_new ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (label),
+ _("Meeting _start time:"));
+ gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
+ gtk_table_attach (GTK_TABLE (table), label,
+ 0, 1, 0, 1, GTK_FILL, 0, 4, 0);
+ gtk_widget_show (label);
+
+ mts->start_date_edit = gnome_date_edit_new (0, TRUE, TRUE);
+ /* I don't like the 'Calendar' label. */
+ gtk_widget_hide (GNOME_DATE_EDIT (mts->start_date_edit)->cal_label);
+ gtk_table_attach (GTK_TABLE (table), mts->start_date_edit,
+ 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
+ gtk_widget_show (mts->start_date_edit);
+ gtk_signal_connect (GTK_OBJECT (mts->start_date_edit), "date_changed",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_start_time_changed), mts);
+ gtk_signal_connect (GTK_OBJECT (mts->start_date_edit), "time_changed",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_start_time_changed), mts);
+ gtk_signal_connect (GTK_OBJECT (GNOME_DATE_EDIT (mts->start_date_edit)->date_entry), "activate", GTK_SIGNAL_FUNC (e_meeting_time_selector_on_start_time_changed), mts);
+ gtk_signal_connect (GTK_OBJECT (GNOME_DATE_EDIT (mts->start_date_edit)->time_entry), "activate", GTK_SIGNAL_FUNC (e_meeting_time_selector_on_start_time_changed), mts);
+ gtk_widget_add_accelerator (GNOME_DATE_EDIT (mts->start_date_edit)->date_entry,
+ "grab_focus", mts->accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+
+ label = gtk_label_new ("");
+ accel_key = gtk_label_parse_uline (GTK_LABEL (label),
+ _("Meeting _end time:"));
+ gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
+ gtk_table_attach (GTK_TABLE (table), label,
+ 0, 1, 1, 2, GTK_FILL, 0, 4, 0);
+ gtk_widget_show (label);
+
+ mts->end_date_edit = gnome_date_edit_new (0, TRUE, TRUE);
+ gtk_widget_hide (GNOME_DATE_EDIT (mts->end_date_edit)->cal_label);
+ gtk_table_attach (GTK_TABLE (table), mts->end_date_edit,
+ 1, 2, 1, 2, GTK_FILL, 0, 0, 0);
+ gtk_widget_show (mts->end_date_edit);
+ gtk_signal_connect (GTK_OBJECT (mts->end_date_edit), "date_changed",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_end_time_changed), mts);
+ gtk_signal_connect (GTK_OBJECT (mts->end_date_edit), "time_changed",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_on_end_time_changed), mts);
+ gtk_signal_connect (GTK_OBJECT (GNOME_DATE_EDIT (mts->end_date_edit)->date_entry), "activate", GTK_SIGNAL_FUNC (e_meeting_time_selector_on_end_time_changed), mts);
+ gtk_signal_connect (GTK_OBJECT (GNOME_DATE_EDIT (mts->end_date_edit)->time_entry), "activate", GTK_SIGNAL_FUNC (e_meeting_time_selector_on_end_time_changed), mts);
+ gtk_widget_add_accelerator (GNOME_DATE_EDIT (mts->end_date_edit)->date_entry,
+ "grab_focus", mts->accel_group,
+ accel_key, GDK_MOD1_MASK, 0);
+
+ gtk_table_set_col_spacing (GTK_TABLE (mts), 0, 4);
+ gtk_table_set_row_spacing (GTK_TABLE (mts), 4, 12);
+
+ /* Allocate the colors. */
+ visual = gtk_widget_get_visual (GTK_WIDGET (mts));
+ colormap = gtk_widget_get_colormap (GTK_WIDGET (mts));
+ mts->color_context = gdk_color_context_new (visual, colormap);
+ e_meeting_time_selector_alloc_named_color (mts, "gray75", &mts->bg_color);
+ e_meeting_time_selector_alloc_named_color (mts, "gray50", &mts->all_attendees_bg_color);
+ gdk_color_black (colormap, &mts->grid_color);
+ gdk_color_white (colormap, &mts->grid_shadow_color);
+ e_meeting_time_selector_alloc_named_color (mts, "gray50", &mts->grid_unused_color);
+ gdk_color_white (colormap, &mts->meeting_time_bg_color);
+ gdk_color_white (colormap, &mts->stipple_bg_color);
+ gdk_color_white (colormap, &mts->attendee_list_bg_color);
+
+ e_meeting_time_selector_alloc_named_color (mts, "LightSkyBlue2", &mts->busy_colors[E_MEETING_TIME_SELECTOR_BUSY_TENTATIVE]);
+ e_meeting_time_selector_alloc_named_color (mts, "blue", &mts->busy_colors[E_MEETING_TIME_SELECTOR_BUSY_BUSY]);
+ e_meeting_time_selector_alloc_named_color (mts, "HotPink3", &mts->busy_colors[E_MEETING_TIME_SELECTOR_BUSY_OUT_OF_OFFICE]);
+
+ /* Create the stipple, for attendees with no data. */
+ mts->stipple = gdk_bitmap_create_from_data (NULL, (gchar*)stipple_bits,
+ 8, 8);
+
+ /* Connect handlers to the adjustments in the main canvas, so we can
+ scroll the other 2 canvases. */
+ gtk_signal_connect (GTK_OBJECT (GTK_LAYOUT (mts->display_main)->hadjustment), "value_changed", GTK_SIGNAL_FUNC (e_meeting_time_selector_hadjustment_changed), mts);
+ gtk_signal_connect (GTK_OBJECT (GTK_LAYOUT (mts->display_main)->vadjustment), "value_changed", GTK_SIGNAL_FUNC (e_meeting_time_selector_vadjustment_changed), mts);
+
+ e_meeting_time_selector_recalc_grid (mts);
+ e_meeting_time_selector_ensure_meeting_time_shown (mts);
+ e_meeting_time_selector_update_start_date_edit (mts);
+ e_meeting_time_selector_update_end_date_edit (mts);
+ e_meeting_time_selector_update_date_popup_menus (mts);
+}
+
+
+/* This adds a color to the color key beneath the main display. If color is
+ NULL, it displays the No Info stipple instead. */
+static void
+e_meeting_time_selector_add_key_color (EMeetingTimeSelector * mts,
+ GtkWidget *hbox,
+ gchar *label_text, GdkColor *color)
+{
+ GtkWidget *child_hbox, *darea, *label;
+
+ child_hbox = gtk_hbox_new (FALSE, 4);
+ gtk_box_pack_start (GTK_BOX (hbox), child_hbox, TRUE, TRUE, 0);
+ gtk_widget_show (child_hbox);
+
+ darea = gtk_drawing_area_new ();
+ gtk_box_pack_start (GTK_BOX (child_hbox), darea, FALSE, FALSE, 0);
+ gtk_object_set_user_data (GTK_OBJECT (darea), mts);
+ gtk_widget_set_usize (darea, 14, 14);
+ gtk_widget_show (darea);
+
+ label = gtk_label_new (label_text);
+ gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
+ gtk_box_pack_start (GTK_BOX (child_hbox), label, TRUE, TRUE, 0);
+ gtk_widget_show (label);
+
+ gtk_signal_connect (GTK_OBJECT (darea), "expose_event",
+ GTK_SIGNAL_FUNC (e_meeting_time_selector_expose_key_color),
+ color);
+}
+
+
+static gint
+e_meeting_time_selector_expose_title_bar (GtkWidget *widget,
+ GdkEventExpose *event,
+ gpointer data)
+{
+ EMeetingTimeSelector * mts;
+ GdkFont *font;
+
+ mts = E_MEETING_TIME_SELECTOR (data);
+
+ gtk_draw_shadow (widget->style, widget->window, GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT, 0, 0,
+ E_MEETING_TIME_SELECTOR_ICON_COLUMN_WIDTH + 1,
+ widget->allocation.height);
+ gtk_draw_shadow (widget->style, widget->window, GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT,
+ E_MEETING_TIME_SELECTOR_ICON_COLUMN_WIDTH + 1, 0,
+ widget->allocation.width - E_MEETING_TIME_SELECTOR_ICON_COLUMN_WIDTH - 1,
+ widget->allocation.height);
+
+ font = widget->style->font;
+ gdk_draw_string (widget->window, font,
+ widget->style->fg_gc[GTK_STATE_NORMAL],
+ E_MEETING_TIME_SELECTOR_ICON_COLUMN_WIDTH + 4,
+ 4 + font->ascent, _("All Attendees"));
+
+ return FALSE;
+}
+
+
+static gint
+e_meeting_time_selector_expose_key_color (GtkWidget *darea,
+ GdkEventExpose *event,
+ GdkColor *color)
+{
+ EMeetingTimeSelector * mts;
+ GdkGC *gc;
+ gint width, height;
+
+ mts = gtk_object_get_user_data (GTK_OBJECT (darea));
+ gc = mts->color_key_gc;
+ width = darea->allocation.width;
+ height = darea->allocation.height;
+
+ gtk_draw_shadow (darea->style, darea->window, GTK_STATE_NORMAL,
+ GTK_SHADOW_IN, 0, 0, width, height);
+
+ if (color) {
+ gdk_gc_set_foreground (gc, color);
+ gdk_draw_rectangle (darea->window, gc, TRUE, 1, 1,
+ width - 2, height - 2);
+ } else {
+ gdk_gc_set_foreground (gc, &mts->grid_color);
+ gdk_gc_set_background (gc, &mts->stipple_bg_color);
+ gdk_gc_set_stipple (gc, mts->stipple);
+ gdk_gc_set_fill (gc, GDK_OPAQUE_STIPPLED);
+ gdk_draw_rectangle (darea->window, gc, TRUE, 1, 1,
+ width - 2, height - 2);
+ gdk_gc_set_fill (gc, GDK_SOLID);
+ }
+
+ return TRUE;
+}
+
+
+static void
+e_meeting_time_selector_alloc_named_color (EMeetingTimeSelector * mts,
+ const char *name, GdkColor *c)
+{
+ int failed;
+
+ g_return_if_fail (name != NULL);
+ g_return_if_fail (c != NULL);
+
+ gdk_color_parse (name, c);
+ c->pixel = 0;
+ c->pixel = gdk_color_context_get_pixel (mts->color_context,
+ c->red, c->green, c->blue,
+ &failed);
+ if (failed)
+ g_warning ("Failed to allocate color: %s\n", name);
+}
+
+
+static void
+e_meeting_time_selector_options_menu_detacher (GtkWidget *widget,
+ GtkMenu *menu)
+{
+ EMeetingTimeSelector *mts;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (widget));
+
+ mts = E_MEETING_TIME_SELECTOR (widget);
+ g_return_if_fail (mts->options_menu == (GtkWidget*) menu);
+
+ mts->options_menu = NULL;
+}
+
+
+static void
+e_meeting_time_selector_autopick_menu_detacher (GtkWidget *widget,
+ GtkMenu *menu)
+{
+ EMeetingTimeSelector *mts;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (widget));
+
+ mts = E_MEETING_TIME_SELECTOR (widget);
+ g_return_if_fail (mts->autopick_menu == (GtkWidget*) menu);
+
+ mts->autopick_menu = NULL;
+}
+
+
+GtkWidget *
+e_meeting_time_selector_new (void)
+{
+ GtkWidget *mts;
+
+ mts = GTK_WIDGET (gtk_type_new (e_meeting_time_selector_get_type ()));
+
+ return mts;
+}
+
+
+static void
+e_meeting_time_selector_destroy (GtkObject *object)
+{
+ EMeetingTimeSelector *mts;
+ EMeetingTimeSelectorAttendee *attendee;
+ gint row;
+
+ mts = E_MEETING_TIME_SELECTOR (object);
+
+ e_meeting_time_selector_remove_timeout (mts);
+
+ gdk_color_context_free (mts->color_context);
+ gdk_bitmap_unref (mts->stipple);
+
+ for (row = 0; row < mts->attendees->len; row++) {
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ g_free (attendee->name);
+ g_array_free (attendee->busy_periods, TRUE);
+ }
+
+ g_array_free (mts->attendees, TRUE);
+
+ if (GTK_OBJECT_CLASS (e_meeting_time_selector_parent_class)->destroy)
+ (*GTK_OBJECT_CLASS (e_meeting_time_selector_parent_class)->destroy)(object);
+}
+
+
+static void
+e_meeting_time_selector_realize (GtkWidget *widget)
+{
+ EMeetingTimeSelector *mts;
+
+ if (GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->realize)
+ (*GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->realize)(widget);
+
+ mts = E_MEETING_TIME_SELECTOR (widget);
+
+ mts->color_key_gc = gdk_gc_new (widget->window);
+}
+
+
+static void
+e_meeting_time_selector_unrealize (GtkWidget *widget)
+{
+ EMeetingTimeSelector *mts;
+
+ mts = E_MEETING_TIME_SELECTOR (widget);
+
+ gdk_gc_unref (mts->color_key_gc);
+ mts->color_key_gc = NULL;
+
+ if (GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->unrealize)
+ (*GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->unrealize)(widget);
+}
+
+
+static void
+e_meeting_time_selector_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ EMeetingTimeSelector *mts;
+ EMeetingTimeSelectorTime saved_time;
+ GdkFont *font;
+ gint hour, max_hour_width;
+
+ if (GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->style_set)
+ (*GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->style_set)(widget, previous_style);
+
+ mts = E_MEETING_TIME_SELECTOR (widget);
+ font = widget->style->font;
+
+ /* Calculate the widths of the hour strings in the style's font. */
+ max_hour_width = 0;
+ for (hour = 0; hour < 24; hour++) {
+ mts->hour_widths[hour] = gdk_string_width (font, EMeetingTimeSelectorHours[hour]);
+ max_hour_width = MAX (max_hour_width, mts->hour_widths[hour]);
+ }
+
+ /* The row height really depends on the requested height of the
+ GtkEntry widgets in the list on the left, so we really need to
+ call size_request on them, AFTER their style has been set. */
+ /* FIXME: This uses the default style ythickness of 2, though it won't
+ be needed when we switch to Miguel's new editable GtkCList widget
+ so I won't worry about it. */
+ mts->row_height = font->ascent + font->descent
+ + E_MEETING_TIME_SELECTOR_ENTRY_INNER_BORDER * 2
+ + 2 * 2;
+ mts->col_width = max_hour_width + 4;
+
+ e_meeting_time_selector_save_position (mts, &saved_time);
+ e_meeting_time_selector_recalc_grid (mts);
+ e_meeting_time_selector_restore_position (mts, &saved_time);
+
+ gtk_widget_set_usize (mts->display_top, -1, mts->row_height * 3);
+ gtk_widget_set_usize (mts->attendees_title_bar, -1, mts->row_height);
+
+ GTK_LAYOUT (mts->display_main)->hadjustment->step_increment = mts->col_width;
+ GTK_LAYOUT (mts->display_main)->vadjustment->step_increment = mts->row_height;
+}
+
+
+/* This draws a shadow around the top display and main display. */
+static gint
+e_meeting_time_selector_expose_event (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ EMeetingTimeSelector *mts;
+ gint x, y, w, h;
+
+ mts = E_MEETING_TIME_SELECTOR (widget);
+
+ /* Draw the shadow around the attendees title bar and list. */
+ x = mts->attendees_title_bar->allocation.x - 2;
+ y = mts->attendees_title_bar->allocation.y - 2;
+ w = mts->attendees_title_bar->allocation.width + 4;
+ h = mts->attendees_title_bar->allocation.height + mts->attendees_list->allocation.height + 4;
+
+ gtk_draw_shadow (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN, x, y, w, h);
+
+ /* Draw the shadow around the graphical displays. */
+ x = mts->display_top->allocation.x - 2;
+ y = mts->display_top->allocation.y - 2;
+ w = mts->display_top->allocation.width + 4;
+ h = mts->display_top->allocation.height + mts->display_main->allocation.height + 4;
+
+ gtk_draw_shadow (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN, x, y, w, h);
+
+ if (GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->expose_event)
+ (*GTK_WIDGET_CLASS (e_meeting_time_selector_parent_class)->expose_event)(widget, event);
+
+ return FALSE;
+}
+
+
+/* When the main canvas scrolls, we scroll the other canvases. */
+static void
+e_meeting_time_selector_hadjustment_changed (GtkAdjustment *adjustment,
+ EMeetingTimeSelector *mts)
+{
+ GtkAdjustment *adj;
+
+ adj = GTK_LAYOUT (mts->display_top)->hadjustment;
+ if (adj->value != adjustment->value) {
+ adj->value = adjustment->value;
+ gtk_signal_emit_by_name (GTK_OBJECT (adj), "value_changed");
+ }
+}
+
+
+static void
+e_meeting_time_selector_vadjustment_changed (GtkAdjustment *adjustment,
+ EMeetingTimeSelector *mts)
+{
+ GtkAdjustment *adj;
+
+ adj = GTK_LAYOUT (mts->attendees_list)->vadjustment;
+ if (adj->value != adjustment->value) {
+ adj->value = adjustment->value;
+ gtk_signal_emit_by_name (GTK_OBJECT (adj), "value_changed");
+ }
+}
+
+
+void
+e_meeting_time_selector_get_meeting_time (EMeetingTimeSelector *mts,
+ gint *start_year,
+ gint *start_month,
+ gint *start_day,
+ gint *start_hour,
+ gint *start_minute,
+ gint *end_year,
+ gint *end_month,
+ gint *end_day,
+ gint *end_hour,
+ gint *end_minute)
+{
+ *start_year = g_date_year (&mts->meeting_start_time.date);
+ *start_month = g_date_month (&mts->meeting_start_time.date);
+ *start_day = g_date_day (&mts->meeting_start_time.date);
+ *start_hour = mts->meeting_start_time.hour;
+ *start_minute = mts->meeting_start_time.minute;
+
+ *end_year = g_date_year (&mts->meeting_end_time.date);
+ *end_month = g_date_month (&mts->meeting_end_time.date);
+ *end_day = g_date_day (&mts->meeting_end_time.date);
+ *end_hour = mts->meeting_end_time.hour;
+ *end_minute = mts->meeting_end_time.minute;
+}
+
+
+gboolean
+e_meeting_time_selector_set_meeting_time (EMeetingTimeSelector *mts,
+ gint start_year,
+ gint start_month,
+ gint start_day,
+ gint start_hour,
+ gint start_minute,
+ gint end_year,
+ gint end_month,
+ gint end_day,
+ gint end_hour,
+ gint end_minute)
+{
+ g_return_val_if_fail (IS_E_MEETING_TIME_SELECTOR (mts), FALSE);
+
+ /* Check the dates are valid. */
+ if (!g_date_valid_dmy (start_day, start_month, start_year)
+ || !g_date_valid_dmy (end_day, end_month, end_year)
+ || start_hour < 0 || start_hour > 23
+ || end_hour < 0 || end_hour > 23
+ || start_minute < 0 || start_minute > 59
+ || end_minute < 0 || end_minute > 59)
+ return FALSE;
+
+ g_date_set_dmy (&mts->meeting_start_time.date, start_day, start_month,
+ start_year);
+ mts->meeting_start_time.hour = start_hour;
+ mts->meeting_start_time.minute = start_minute;
+ g_date_set_dmy (&mts->meeting_end_time.date, end_day, end_month,
+ end_year);
+ mts->meeting_end_time.hour = end_hour;
+ mts->meeting_end_time.minute = end_minute;
+
+ mts->meeting_positions_valid = FALSE;
+
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+
+ /* Set the times in the GnomeDateEdit widgets. */
+ e_meeting_time_selector_update_start_date_edit (mts);
+ e_meeting_time_selector_update_end_date_edit (mts);
+
+ return TRUE;
+}
+
+
+void
+e_meeting_time_selector_set_working_hours_only (EMeetingTimeSelector *mts,
+ gboolean working_hours_only)
+{
+ EMeetingTimeSelectorTime saved_time;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+
+ if (mts->working_hours_only == working_hours_only)
+ return;
+
+ mts->working_hours_only = working_hours_only;
+
+ e_meeting_time_selector_save_position (mts, &saved_time);
+ e_meeting_time_selector_recalc_grid (mts);
+ e_meeting_time_selector_restore_position (mts, &saved_time);
+
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+ e_meeting_time_selector_update_date_popup_menus (mts);
+}
+
+
+void
+e_meeting_time_selector_set_working_hours (EMeetingTimeSelector *mts,
+ gint day_start_hour,
+ gint day_start_minute,
+ gint day_end_hour,
+ gint day_end_minute)
+{
+ EMeetingTimeSelectorTime saved_time;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+
+ if (mts->day_start_hour == day_start_hour
+ && mts->day_start_minute == day_start_minute
+ && mts->day_end_hour == day_end_hour
+ && mts->day_end_minute == day_end_minute)
+ return;
+
+ mts->day_start_hour = day_start_hour;
+ mts->day_start_minute = day_start_minute;
+ mts->day_end_hour = day_end_hour;
+ mts->day_end_minute = day_end_minute;
+
+ e_meeting_time_selector_save_position (mts, &saved_time);
+ e_meeting_time_selector_recalc_grid (mts);
+ e_meeting_time_selector_restore_position (mts, &saved_time);
+
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+ e_meeting_time_selector_update_date_popup_menus (mts);
+}
+
+
+void
+e_meeting_time_selector_set_zoomed_out (EMeetingTimeSelector *mts,
+ gboolean zoomed_out)
+{
+ EMeetingTimeSelectorTime saved_time;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+
+ if (mts->zoomed_out == zoomed_out)
+ return;
+
+ mts->zoomed_out = zoomed_out;
+
+ e_meeting_time_selector_save_position (mts, &saved_time);
+ e_meeting_time_selector_recalc_grid (mts);
+ e_meeting_time_selector_restore_position (mts, &saved_time);
+
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+}
+
+
+EMeetingTimeSelectorAutopickOption
+e_meeting_time_selector_get_autopick_option (EMeetingTimeSelector *mts)
+{
+ if (GTK_CHECK_MENU_ITEM (mts->autopick_all_item)->active)
+ return E_MEETING_TIME_SELECTOR_ALL_PEOPLE_AND_RESOURCES;
+ if (GTK_CHECK_MENU_ITEM (mts->autopick_all_people_one_resource_item)->active)
+ return E_MEETING_TIME_SELECTOR_ALL_PEOPLE_AND_ONE_RESOURCE;
+ if (GTK_CHECK_MENU_ITEM (mts->autopick_required_people_item)->active)
+ return E_MEETING_TIME_SELECTOR_REQUIRED_PEOPLE;
+ return E_MEETING_TIME_SELECTOR_REQUIRED_PEOPLE_AND_ONE_RESOURCE;
+}
+
+
+void
+e_meeting_time_selector_set_autopick_option (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorAutopickOption autopick_option)
+{
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+
+ switch (autopick_option) {
+ case E_MEETING_TIME_SELECTOR_ALL_PEOPLE_AND_RESOURCES:
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (mts->autopick_all_item), TRUE);
+ break;
+ case E_MEETING_TIME_SELECTOR_ALL_PEOPLE_AND_ONE_RESOURCE:
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (mts->autopick_all_people_one_resource_item), TRUE);
+ break;
+ case E_MEETING_TIME_SELECTOR_REQUIRED_PEOPLE:
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (mts->autopick_required_people_item), TRUE);
+ break;
+ case E_MEETING_TIME_SELECTOR_REQUIRED_PEOPLE_AND_ONE_RESOURCE:
+ gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (mts->autopick_required_people_one_resource_item), TRUE);
+ break;
+ }
+}
+
+
+/* Adds an attendee to the list, returning the row. The data is meant for
+ something like an address book id, though if the user edits the name this
+ will become invalid. We'll probably have to handle address book lookup
+ ourself. */
+gint
+e_meeting_time_selector_attendee_add (EMeetingTimeSelector *mts,
+ gchar *attendee_name,
+ gpointer data)
+{
+ EMeetingTimeSelectorAttendee attendee;
+ GtkWidget *entry;
+ gint list_width, item_width;
+
+ g_return_val_if_fail (IS_E_MEETING_TIME_SELECTOR (mts), -1);
+ g_return_val_if_fail (attendee_name != NULL, -1);
+
+ attendee.name = g_strdup (attendee_name);
+ attendee.type = E_MEETING_TIME_SELECTOR_REQUIRED_PERSON;
+ attendee.has_calendar_info = FALSE;
+ attendee.send_meeting_to = TRUE;
+ attendee.busy_periods = g_array_new (FALSE, FALSE,
+ sizeof (EMeetingTimeSelectorPeriod));
+ attendee.busy_periods_sorted = TRUE;
+ attendee.longest_period_in_days = 0;
+ attendee.data = data;
+
+ /* Add to the list on the left. */
+ entry = gtk_entry_new ();
+ gtk_entry_set_text (GTK_ENTRY (entry), attendee_name);
+ gtk_widget_show (entry);
+ list_width = GTK_WIDGET (mts->attendees_list)->allocation.width;
+ item_width = MAX (1, list_width - E_MEETING_TIME_SELECTOR_ICON_COLUMN_WIDTH);
+ attendee.text_item = gnome_canvas_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (mts->attendees_list)->root),
+ gnome_canvas_widget_get_type (),
+ "GnomeCanvasWidget::widget", entry,
+ "GnomeCanvasWidget::size_pixels", TRUE,
+ "GnomeCanvasWidget::x", (gdouble) E_MEETING_TIME_SELECTOR_ICON_COLUMN_WIDTH,
+ "GnomeCanvasWidget::y", (gdouble) (mts->attendees->len * mts->row_height),
+ "GnomeCanvasWidget::width", (gdouble) item_width,
+ "GnomeCanvasWidget::height", (gdouble) mts->row_height,
+ NULL);
+ gnome_canvas_item_hide (attendee.text_item);
+
+ g_array_append_val (mts->attendees, attendee);
+
+ /* Update the scroll region. */
+ e_meeting_time_selector_update_attendees_list_scroll_region (mts);
+ e_meeting_time_selector_update_main_canvas_scroll_region (mts);
+
+ /* Redraw the canvases. */
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+
+
+ return mts->attendees->len - 1;
+}
+
+
+gint
+e_meeting_time_selector_attendee_find_by_name (EMeetingTimeSelector *mts,
+ gchar *attendee_name,
+ gint start_row)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+ gint row;
+
+ g_return_val_if_fail (IS_E_MEETING_TIME_SELECTOR (mts), -1);
+ g_return_val_if_fail (start_row >= 0, -1);
+ g_return_val_if_fail (start_row < mts->attendees->len, -1);
+
+ for (row = start_row; row < mts->attendees->len; row++) {
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ if (!strcmp (attendee->name, attendee_name))
+ return row;
+ }
+
+ return -1;
+}
+
+
+gint
+e_meeting_time_selector_attendee_find_by_data (EMeetingTimeSelector *mts,
+ gpointer data,
+ gint start_row)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+ gint row;
+
+ g_return_val_if_fail (IS_E_MEETING_TIME_SELECTOR (mts), -1);
+ g_return_val_if_fail (start_row >= 0, -1);
+ g_return_val_if_fail (start_row < mts->attendees->len, -1);
+
+ for (row = start_row; row < mts->attendees->len; row++) {
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ if (attendee->data == data)
+ return row;
+ }
+
+ return -1;
+}
+
+
+void
+e_meeting_time_selector_attendee_remove (EMeetingTimeSelector *mts,
+ gint row)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+ g_return_if_fail (row >= 0);
+ g_return_if_fail (row < mts->attendees->len);
+
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+
+ g_free (attendee->name);
+ g_array_free (attendee->busy_periods, TRUE);
+
+ /* Destroy the GtkEntry in the list. */
+ gtk_object_destroy (GTK_OBJECT (attendee->text_item));
+
+ g_array_remove_index (mts->attendees, row);
+
+ /* Update the positions of all the other GtkEntry widgets. */
+ e_meeting_time_selector_update_attendees_list_positions (mts);
+
+ e_meeting_time_selector_update_attendees_list_scroll_region (mts);
+ e_meeting_time_selector_update_main_canvas_scroll_region (mts);
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+}
+
+
+void
+e_meeting_time_selector_attendee_set_type (EMeetingTimeSelector *mts,
+ gint row,
+ EMeetingTimeSelectorAttendeeType type)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+ g_return_if_fail (row >= 0);
+ g_return_if_fail (row < mts->attendees->len);
+
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ attendee->type = type;
+}
+
+
+void
+e_meeting_time_selector_attendee_set_has_calendar_info (EMeetingTimeSelector *mts,
+ gint row,
+ gboolean has_calendar_info)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+ g_return_if_fail (row >= 0);
+ g_return_if_fail (row < mts->attendees->len);
+
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ attendee->has_calendar_info = has_calendar_info;
+}
+
+
+void
+e_meeting_time_selector_attendee_set_send_meeting_to (EMeetingTimeSelector *mts,
+ gint row,
+ gboolean send_meeting_to)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+ g_return_if_fail (row >= 0);
+ g_return_if_fail (row < mts->attendees->len);
+
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ attendee->send_meeting_to = send_meeting_to;
+}
+
+
+/* Clears all busy times for the given attendee. */
+void
+e_meeting_time_selector_attendee_clear_busy_periods (EMeetingTimeSelector *mts,
+ gint row)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+ g_return_if_fail (row >= 0);
+ g_return_if_fail (row < mts->attendees->len);
+
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+
+ g_array_set_size (attendee->busy_periods, 0);
+ attendee->busy_periods_sorted = TRUE;
+ attendee->longest_period_in_days = 0;
+}
+
+
+/* Adds one busy time for the given attendee. It returns FALSE if the date
+ or time is invalid. Months and days count from 1. */
+gboolean
+e_meeting_time_selector_attendee_add_busy_period (EMeetingTimeSelector *mts,
+ gint row,
+ gint start_year,
+ gint start_month,
+ gint start_day,
+ gint start_hour,
+ gint start_minute,
+ gint end_year,
+ gint end_month,
+ gint end_day,
+ gint end_hour,
+ gint end_minute,
+ EMeetingTimeSelectorBusyType busy_type)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+ EMeetingTimeSelectorPeriod period;
+ gint period_in_days;
+
+ g_return_val_if_fail (IS_E_MEETING_TIME_SELECTOR (mts), FALSE);
+ g_return_val_if_fail (row >= 0, FALSE);
+ g_return_val_if_fail (row < mts->attendees->len, FALSE);
+ g_return_val_if_fail (busy_type >= 0, FALSE);
+ g_return_val_if_fail (busy_type < E_MEETING_TIME_SELECTOR_BUSY_LAST, FALSE);
+
+ /* Check the dates are valid. */
+ if (!g_date_valid_dmy (start_day, start_month, start_year))
+ return FALSE;
+ if (!g_date_valid_dmy (end_day, end_month, end_year))
+ return FALSE;
+ if (start_hour < 0 || start_hour > 23)
+ return FALSE;
+ if (end_hour < 0 || end_hour > 23)
+ return FALSE;
+ if (start_minute < 0 || start_minute > 59)
+ return FALSE;
+ if (end_minute < 0 || end_minute > 59)
+ return FALSE;
+
+ g_date_clear (&period.start.date, 1);
+ g_date_clear (&period.end.date, 1);
+ g_date_set_dmy (&period.start.date, start_day, start_month, start_year);
+ g_date_set_dmy (&period.end.date, end_day, end_month, end_year);
+ period.start.hour = start_hour;
+ period.start.minute = start_minute;
+ period.end.hour = end_hour;
+ period.end.minute = end_minute;
+ period.busy_type = busy_type;
+
+ /* Check that the start time is before or equal to the end time. */
+ if (e_meeting_time_selector_compare_times (&period.start, &period.end) > 0)
+ return FALSE;
+
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ g_array_append_val (attendee->busy_periods, period);
+ attendee->has_calendar_info = TRUE;
+ attendee->busy_periods_sorted = FALSE;
+
+ period_in_days = g_date_julian (&period.end.date) - g_date_julian (&period.start.date) + 1;
+ attendee->longest_period_in_days = MAX (attendee->longest_period_in_days, period_in_days);
+
+ return TRUE;
+}
+
+
+void
+e_meeting_time_selector_attendee_ensure_periods_sorted (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorAttendee *attendee)
+{
+ if (attendee->busy_periods_sorted)
+ return;
+
+ qsort (attendee->busy_periods->data, attendee->busy_periods->len,
+ sizeof (EMeetingTimeSelectorPeriod),
+ e_meeting_time_selector_compare_period_starts);
+ attendee->busy_periods_sorted = TRUE;
+}
+
+
+/* This compares two time periods, using their end times. */
+static gint
+e_meeting_time_selector_compare_period_starts (const void *arg1,
+ const void *arg2)
+{
+ EMeetingTimeSelectorPeriod *period1, *period2;
+
+ period1 = (EMeetingTimeSelectorPeriod *) arg1;
+ period2 = (EMeetingTimeSelectorPeriod *) arg2;
+
+ return e_meeting_time_selector_compare_times (&period1->start,
+ &period2->start);
+}
+
+
+/* This compares two time periods, using start and end times, mainly to see if
+ they overlap at all. If they overlap it returns 0. Or -1 if arg1 < arg2.
+ Or 1 if arg1 > arg2. */
+/* Currently unused. */
+#if 0
+static gint
+e_meeting_time_selector_compare_periods (const void *arg1,
+ const void *arg2)
+{
+ EMeetingTimeSelectorPeriod *period1, *period2;
+
+ period1 = (EMeetingTimeSelectorPeriod *) arg1;
+ period2 = (EMeetingTimeSelectorPeriod *) arg2;
+
+ /* If period 2 starts after period 1 ends, return 1. */
+ if (e_meeting_time_selector_compare_times (&period2->start, &period1->end) >= 0)
+ return 1;
+
+ /* If period 1 starts after period 2 ends, return -1. */
+ if (e_meeting_time_selector_compare_times (&period1->start, &period2->end) >= 0)
+ return -1;
+
+ /* They must overlap so return 0. */
+ return 0;
+}
+#endif
+
+
+static gint
+e_meeting_time_selector_compare_times (EMeetingTimeSelectorTime *time1,
+ EMeetingTimeSelectorTime *time2)
+{
+ gint day_comparison;
+
+ day_comparison = g_date_compare (&time1->date,
+ &time2->date);
+ if (day_comparison != 0)
+ return day_comparison;
+
+ if (time1->hour < time2->hour)
+ return -1;
+ if (time1->hour > time2->hour)
+ return 1;
+
+ if (time1->minute < time2->minute)
+ return -1;
+ if (time1->minute > time2->minute)
+ return 1;
+
+ /* The start times are exactly the same. */
+ return 0;
+}
+
+
+/*
+ * DEBUGGING ROUTINES - functions to output various bits of data.
+ */
+
+#ifdef E_MEETING_TIME_SELECTOR_DEBUG
+
+/* Debugging function to dump information on all attendees. */
+void
+e_meeting_time_selector_dump (EMeetingTimeSelector *mts)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+ EMeetingTimeSelectorPeriod *period;
+ gint row, period_num;
+ gchar buffer[128];
+
+ g_return_if_fail (IS_E_MEETING_TIME_SELECTOR (mts));
+
+ g_print ("\n\nAttendee Information:\n");
+
+ for (row = 0; row < mts->attendees->len; row++) {
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+ g_print ("Attendee: %s\n", attendee->name);
+ g_print (" Longest Busy Period: %i days\n",
+ attendee->longest_period_in_days);
+
+ e_meeting_time_selector_attendee_ensure_periods_sorted (mts, attendee);
+#if 1
+ for (period_num = 0;
+ period_num < attendee->busy_periods->len;
+ period_num++) {
+ period = &g_array_index (attendee->busy_periods,
+ EMeetingTimeSelectorPeriod,
+ period_num);
+
+ g_date_strftime (buffer, 128, "%A, %B %d, %Y",
+ &period->start.date);
+ g_print (" Start: %s %i:%02i\n", buffer,
+ period->start.hour, period->start.minute);
+
+ g_date_strftime (buffer, 128, "%A, %B %d, %Y",
+ &period->end.date);
+ g_print (" End : %s %i:%02i\n", buffer,
+ period->end.hour, period->end.minute);
+ }
+#endif
+ }
+
+}
+
+
+/* This formats a EMeetingTimeSelectorTime in a string and returns it.
+ Note that it uses a static buffer. */
+gchar*
+e_meeting_time_selector_dump_time (EMeetingTimeSelectorTime *mtstime)
+{
+ static gchar buffer[128];
+
+ gchar buffer2[128];
+
+ g_date_strftime (buffer, 128, "%A, %B %d, %Y", &mtstime->date);
+ sprintf (buffer2, " at %i:%02i", (gint) mtstime->hour,
+ (gint) mtstime->minute);
+ strcat (buffer, buffer2);
+
+ return buffer;
+}
+
+
+/* This formats a GDate in a string and returns it.
+ Note that it uses a static buffer. */
+gchar*
+e_meeting_time_selector_dump_date (GDate *date)
+{
+ static gchar buffer[128];
+
+ g_date_strftime (buffer, 128, "%A, %B %d, %Y", date);
+ return buffer;
+}
+
+#endif /* E_MEETING_TIME_SELECTOR_DEBUG */
+
+
+static void
+e_meeting_time_selector_on_invite_others_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts)
+{
+
+
+}
+
+
+static void
+e_meeting_time_selector_on_options_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts)
+{
+ gtk_menu_popup (GTK_MENU (mts->options_menu), NULL, NULL,
+ e_meeting_time_selector_options_menu_position_callback,
+ mts, 1, GDK_CURRENT_TIME);
+}
+
+
+static void
+e_meeting_time_selector_options_menu_position_callback (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gpointer user_data)
+{
+ EMeetingTimeSelector *mts;
+ GtkRequisition menu_requisition;
+ gint max_x, max_y;
+
+ mts = E_MEETING_TIME_SELECTOR (user_data);
+
+ /* Calculate our preferred position. */
+ gdk_window_get_origin (mts->options_button->window, x, y);
+ *y += mts->options_button->allocation.height;
+
+ /* Now make sure we are on the screen. */
+ gtk_widget_size_request (mts->options_menu, &menu_requisition);
+ max_x = MAX (0, gdk_screen_width () - menu_requisition.width);
+ max_y = MAX (0, gdk_screen_height () - menu_requisition.height);
+ *x = CLAMP (*x, 0, max_x);
+ *y = CLAMP (*y, 0, max_y);
+}
+
+
+static void
+e_meeting_time_selector_on_update_free_busy (GtkWidget *button,
+ EMeetingTimeSelector *mts)
+{
+
+ /* Make sure the menu pops down, which doesn't happen by default if
+ keyboard accelerators are used. */
+ if (GTK_WIDGET_VISIBLE (mts->options_menu))
+ gtk_menu_popdown (GTK_MENU (mts->options_menu));
+}
+
+
+static void
+e_meeting_time_selector_on_autopick_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts)
+{
+ gtk_menu_popup (GTK_MENU (mts->autopick_menu), NULL, NULL,
+ e_meeting_time_selector_autopick_menu_position_callback,
+ mts, 1, GDK_CURRENT_TIME);
+}
+
+
+static void
+e_meeting_time_selector_autopick_menu_position_callback (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gpointer user_data)
+{
+ EMeetingTimeSelector *mts;
+ GtkRequisition menu_requisition;
+ gint max_x, max_y;
+
+ mts = E_MEETING_TIME_SELECTOR (user_data);
+
+ /* Calculate our preferred position. */
+ gdk_window_get_origin (mts->autopick_button->window, x, y);
+ *y += mts->autopick_button->allocation.height;
+
+ /* Now make sure we are on the screen. */
+ gtk_widget_size_request (mts->autopick_menu, &menu_requisition);
+ max_x = MAX (0, gdk_screen_width () - menu_requisition.width);
+ max_y = MAX (0, gdk_screen_height () - menu_requisition.height);
+ *x = CLAMP (*x, 0, max_x);
+ *y = CLAMP (*y, 0, max_y);
+}
+
+
+static void
+e_meeting_time_selector_on_autopick_option_toggled (GtkWidget *button,
+ EMeetingTimeSelector *mts)
+{
+ /* Make sure the menu pops down, which doesn't happen by default if
+ keyboard accelerators are used. */
+ if (GTK_WIDGET_VISIBLE (mts->autopick_menu))
+ gtk_menu_popdown (GTK_MENU (mts->autopick_menu));
+}
+
+
+static void
+e_meeting_time_selector_on_prev_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts)
+{
+ e_meeting_time_selector_autopick (mts, FALSE);
+}
+
+
+static void
+e_meeting_time_selector_on_next_button_clicked (GtkWidget *button,
+ EMeetingTimeSelector *mts)
+{
+ e_meeting_time_selector_autopick (mts, TRUE);
+}
+
+
+/* This tries to find the previous or next meeting time for which all
+ attendees will be available. */
+static void
+e_meeting_time_selector_autopick (EMeetingTimeSelector *mts,
+ gboolean forward)
+{
+ EMeetingTimeSelectorTime start_time, end_time, *resource_free;
+ EMeetingTimeSelectorAttendee *attendee;
+ EMeetingTimeSelectorPeriod *period;
+ EMeetingTimeSelectorAutopickOption autopick_option;
+ gint duration_days, duration_hours, duration_minutes, row;
+ gboolean meeting_time_ok, skip_optional = FALSE;
+ gboolean need_one_resource = FALSE, found_resource;
+
+ /* Get the current meeting duration in days + hours + minutes. */
+ e_meeting_time_selector_calculate_time_difference (&mts->meeting_start_time, &mts->meeting_end_time, &duration_days, &duration_hours, &duration_minutes);
+
+ /* Find the first appropriate start time. */
+ start_time = mts->meeting_start_time;
+ if (forward)
+ e_meeting_time_selector_find_nearest_interval (mts, &start_time, &end_time, duration_days, duration_hours, duration_minutes);
+ else
+ e_meeting_time_selector_find_nearest_interval_backward (mts, &start_time, &end_time, duration_days, duration_hours, duration_minutes);
+
+ /* Determine if we can skip optional people and if we only need one
+ resource based on the autopick option. */
+ autopick_option = e_meeting_time_selector_get_autopick_option (mts);
+ if (autopick_option == E_MEETING_TIME_SELECTOR_REQUIRED_PEOPLE
+ || autopick_option == E_MEETING_TIME_SELECTOR_REQUIRED_PEOPLE_AND_ONE_RESOURCE)
+ skip_optional = TRUE;
+ if (autopick_option == E_MEETING_TIME_SELECTOR_ALL_PEOPLE_AND_ONE_RESOURCE
+ || autopick_option == E_MEETING_TIME_SELECTOR_REQUIRED_PEOPLE_AND_ONE_RESOURCE)
+ need_one_resource = TRUE;
+
+ /* Keep moving forward or backward until we find a possible meeting
+ time. */
+ for (;;) {
+ meeting_time_ok = TRUE;
+ found_resource = FALSE;
+ resource_free = NULL;
+
+ /* Step through each attendee, checking if the meeting time
+ intersects one of the attendees busy periods. */
+ for (row = 0; row < mts->attendees->len; row++) {
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee,
+ row);
+
+ /* Skip optional people if they don't matter. */
+ if (skip_optional && attendee->type == E_MEETING_TIME_SELECTOR_OPTIONAL_PERSON)
+ continue;
+
+ period = e_meeting_time_selector_find_time_clash (mts, attendee, &start_time, &end_time);
+
+ if (need_one_resource && attendee->type == E_MEETING_TIME_SELECTOR_RESOURCE) {
+ if (period) {
+ /* We want to remember the closest
+ prev/next time that one resource is
+ available, in case we don't find any
+ free resources. */
+ if (forward) {
+ if (!resource_free || e_meeting_time_selector_compare_times (resource_free, &period->end) > 0)
+ resource_free = &period->end;
+ } else {
+ if (!resource_free || e_meeting_time_selector_compare_times (resource_free, &period->start) < 0)
+ resource_free = &period->start;
+ }
+
+ } else {
+ found_resource = TRUE;
+ }
+ } else if (period) {
+ /* Skip the period which clashed. */
+ if (forward) {
+ start_time = period->end;
+ } else {
+ start_time = period->start;
+ e_meeting_time_selector_adjust_time (&start_time, -duration_days, -duration_hours, -duration_minutes);
+ }
+ meeting_time_ok = FALSE;
+ break;
+ }
+ }
+
+ /* Check that we found one resource if necessary. If not, skip
+ to the closest time that a resource is free. Note that if
+ there are no resources, resource_free will never get set,
+ so we assume the meeting time is OK. */
+ if (meeting_time_ok && need_one_resource && !found_resource
+ && resource_free) {
+ if (forward) {
+ start_time = *resource_free;
+ } else {
+ start_time = *resource_free;
+ e_meeting_time_selector_adjust_time (&start_time, -duration_days, -duration_hours, -duration_minutes);
+ }
+ meeting_time_ok = FALSE;
+ }
+
+ if (meeting_time_ok) {
+ mts->meeting_start_time = start_time;
+ mts->meeting_end_time = end_time;
+ mts->meeting_positions_valid = FALSE;
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+
+ /* Make sure the time is shown. */
+ e_meeting_time_selector_ensure_meeting_time_shown (mts);
+
+ /* Set the times in the GnomeDateEdit widgets. */
+ e_meeting_time_selector_update_start_date_edit (mts);
+ e_meeting_time_selector_update_end_date_edit (mts);
+ return;
+ }
+
+ /* Move forward to the next possible interval. */
+ if (forward)
+ e_meeting_time_selector_find_nearest_interval (mts, &start_time, &end_time, duration_days, duration_hours, duration_minutes);
+ else
+ e_meeting_time_selector_find_nearest_interval_backward (mts, &start_time, &end_time, duration_days, duration_hours, duration_minutes);
+ }
+}
+
+
+static void
+e_meeting_time_selector_calculate_time_difference (EMeetingTimeSelectorTime *start,
+ EMeetingTimeSelectorTime *end,
+ gint *days,
+ gint *hours,
+ gint *minutes)
+{
+ *days = g_date_julian (&end->date) - g_date_julian (&start->date);
+ *hours = end->hour - start->hour;
+ *minutes = end->minute - start->minute;
+ if (*minutes < 0) {
+ *minutes += 60;
+ *hours = *hours - 1;
+ }
+ if (*hours < 0) {
+ *hours += 24;
+ *days = *days - 1;
+ }
+}
+
+
+/* This moves the given time forward to the next suitable start of a meeting.
+ If zoomed_out is set, this means every hour. If not every half-hour. */
+static void
+e_meeting_time_selector_find_nearest_interval (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *start_time,
+ EMeetingTimeSelectorTime *end_time,
+ gint days, gint hours, gint mins)
+{
+ gint minutes_shown;
+ gboolean set_to_start_of_working_day = FALSE;
+
+ if (mts->zoomed_out) {
+ start_time->hour++;
+ start_time->minute = 0;
+ } else {
+ start_time->minute += 30;
+ start_time->minute -= start_time->minute % 30;
+ }
+ e_meeting_time_selector_fix_time_overflows (start_time);
+
+ *end_time = *start_time;
+ e_meeting_time_selector_adjust_time (end_time, days, hours, mins);
+
+ /* Check if the interval is less than a day as seen in the display.
+ If it isn't we don't worry about the working day. */
+ if (!mts->working_hours_only || days > 0)
+ return;
+ minutes_shown = (mts->day_end_hour - mts->day_start_hour) * 60;
+ minutes_shown += mts->day_end_minute - mts->day_start_minute;
+ if (hours * 60 + mins > minutes_shown)
+ return;
+
+ /* If the meeting time finishes past the end of the working day, move
+ onto the start of the next working day. If the meeting time starts
+ before the working day, move it on as well. */
+ if (start_time->hour > mts->day_end_hour
+ || (start_time->hour == mts->day_end_hour
+ && start_time->minute > mts->day_end_minute)
+ || end_time->hour > mts->day_end_hour
+ || (end_time->hour == mts->day_end_hour
+ && end_time->minute > mts->day_end_minute)) {
+ g_date_add_days (&start_time->date, 1);
+ set_to_start_of_working_day = TRUE;
+ } else if (start_time->hour < mts->day_start_hour
+ || (start_time->hour == mts->day_start_hour
+ && start_time->minute < mts->day_start_minute)) {
+ set_to_start_of_working_day = TRUE;
+ }
+
+ if (set_to_start_of_working_day) {
+ start_time->hour = mts->day_start_hour;
+ start_time->minute = mts->day_start_minute;
+
+ if (mts->zoomed_out) {
+ if (start_time->minute > 0) {
+ start_time->hour++;
+ start_time->minute = 0;
+ }
+ } else {
+ start_time->minute += 29;
+ start_time->minute -= start_time->minute % 30;
+ }
+ e_meeting_time_selector_fix_time_overflows (start_time);
+
+ *end_time = *start_time;
+ e_meeting_time_selector_adjust_time (end_time, days, hours, mins);
+ }
+}
+
+
+/* This moves the given time backward to the next suitable start of a meeting.
+ If zoomed_out is set, this means every hour. If not every half-hour. */
+static void
+e_meeting_time_selector_find_nearest_interval_backward (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *start_time,
+ EMeetingTimeSelectorTime *end_time,
+ gint days, gint hours, gint mins)
+{
+ gint new_hour, minutes_shown;
+ gboolean set_to_end_of_working_day = FALSE;
+
+ new_hour = start_time->hour;
+ if (mts->zoomed_out) {
+ if (start_time->minute == 0)
+ new_hour--;
+ start_time->minute = 0;
+ } else {
+ if (start_time->minute == 0) {
+ start_time->minute = 30;
+ new_hour--;
+ } else if (start_time->minute <= 30)
+ start_time->minute = 0;
+ else
+ start_time->minute = 30;
+ }
+ if (new_hour < 0) {
+ new_hour += 24;
+ g_date_subtract_days (&start_time->date, 1);
+ }
+ start_time->hour = new_hour;
+
+ *end_time = *start_time;
+ e_meeting_time_selector_adjust_time (end_time, days, hours, mins);
+
+ /* Check if the interval is less than a day as seen in the display.
+ If it isn't we don't worry about the working day. */
+ if (!mts->working_hours_only || days > 0)
+ return;
+ minutes_shown = (mts->day_end_hour - mts->day_start_hour) * 60;
+ minutes_shown += mts->day_end_minute - mts->day_start_minute;
+ if (hours * 60 + mins > minutes_shown)
+ return;
+
+ /* If the meeting time finishes past the end of the working day, move
+ back to the end of the working day. If the meeting time starts
+ before the working day, move it back to the end of the previous
+ working day. */
+ if (start_time->hour > mts->day_end_hour
+ || (start_time->hour == mts->day_end_hour
+ && start_time->minute > mts->day_end_minute)
+ || end_time->hour > mts->day_end_hour
+ || (end_time->hour == mts->day_end_hour
+ && end_time->minute > mts->day_end_minute)) {
+ set_to_end_of_working_day = TRUE;
+ } else if (start_time->hour < mts->day_start_hour
+ || (start_time->hour == mts->day_start_hour
+ && start_time->minute < mts->day_start_minute)) {
+ g_date_subtract_days (&end_time->date, 1);
+ set_to_end_of_working_day = TRUE;
+ }
+
+ if (set_to_end_of_working_day) {
+ end_time->hour = mts->day_end_hour;
+ end_time->minute = mts->day_end_minute;
+ *start_time = *end_time;
+ e_meeting_time_selector_adjust_time (start_time, -days, -hours, -mins);
+
+ if (mts->zoomed_out) {
+ start_time->minute = 0;
+ } else {
+ start_time->minute -= start_time->minute % 30;
+ }
+
+ *end_time = *start_time;
+ e_meeting_time_selector_adjust_time (end_time, days, hours, mins);
+ }
+}
+
+
+/* This adds on the given days, hours & minutes to a EMeetingTimeSelectorTime.
+ It is used to calculate the end of a period given a start & duration.
+ Days, hours & minutes can be negative, to move backwards, but they should
+ be within normal ranges, e.g. hours should be between -23 and 23. */
+static void
+e_meeting_time_selector_adjust_time (EMeetingTimeSelectorTime *mtstime,
+ gint days, gint hours, gint minutes)
+{
+ gint new_hours, new_minutes;
+
+ /* We have to handle negative values for hous and minutes here, since
+ EMeetingTimeSelectorTime uses guint8s to store them. */
+ new_minutes = mtstime->minute + minutes;
+ if (new_minutes < 0) {
+ new_minutes += 60;
+ hours -= 1;
+ }
+
+ new_hours = mtstime->hour + hours;
+ if (new_hours < 0) {
+ new_hours += 24;
+ days -= 1;
+ }
+
+ g_date_add_days (&mtstime->date, days);
+ mtstime->hour = new_hours;
+ mtstime->minute = new_minutes;
+
+ e_meeting_time_selector_fix_time_overflows (mtstime);
+}
+
+
+/* This looks for any busy period of the given attendee which clashes with
+ the start and end time. It uses a binary search. */
+static EMeetingTimeSelectorPeriod*
+e_meeting_time_selector_find_time_clash (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorAttendee *attendee,
+ EMeetingTimeSelectorTime *start_time,
+ EMeetingTimeSelectorTime *end_time)
+{
+ EMeetingTimeSelectorPeriod *period;
+ gint period_num;
+
+ period_num = e_meeting_time_selector_find_first_busy_period (mts, attendee, &start_time->date);
+
+ if (period_num == -1)
+ return NULL;
+
+ /* Step forward through the busy periods until we find a clash or we
+ go past the end_time. */
+ while (period_num < attendee->busy_periods->len) {
+ period = &g_array_index (attendee->busy_periods,
+ EMeetingTimeSelectorPeriod,
+ period_num);
+
+ /* If the period starts at or after the end time, there is no
+ clash and we are finished. The busy periods are sorted by
+ their start times, so all the rest will be later. */
+ if (e_meeting_time_selector_compare_times (&period->start,
+ end_time) >= 0)
+ return NULL;
+
+ /* If the period ends after the start time, we have found a
+ clash. From the above test we already know the busy period
+ isn't completely after the meeting time. */
+ if (e_meeting_time_selector_compare_times (&period->end,
+ start_time) > 0) {
+ return period;
+ }
+
+ period_num++;
+ }
+
+ return NULL;
+}
+
+
+/* This subtracts the attendees longest_period_in_days from the given date,
+ and does a binary search of the attendee's busy periods array to find the
+ first one which could possible end on the given day or later.
+ If none are found it returns -1. */
+gint
+e_meeting_time_selector_find_first_busy_period (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorAttendee *attendee,
+ GDate *date)
+{
+ EMeetingTimeSelectorPeriod *period;
+ gint lower, upper, middle, cmp = 0;
+ GDate tmp_date;
+
+ /* Make sure the busy periods have been sorted. */
+ e_meeting_time_selector_attendee_ensure_periods_sorted (mts, attendee);
+
+ /* Calculate the first day which could have a busy period which
+ continues onto our given date. */
+ tmp_date = *date;
+ g_date_subtract_days (&tmp_date, attendee->longest_period_in_days);
+
+ /* We want the first busy period which starts on tmp_date. */
+ lower = 0;
+ upper = attendee->busy_periods->len;
+
+ if (upper == 0)
+ return -1;
+
+ while (lower < upper) {
+ middle = (lower + upper) >> 1;
+
+ period = &g_array_index (attendee->busy_periods,
+ EMeetingTimeSelectorPeriod, middle);
+
+ cmp = g_date_compare (&tmp_date, &period->start.date);
+
+ if (cmp == 0)
+ break;
+ else if (cmp < 0)
+ upper = middle;
+ else
+ lower = middle + 1;
+ }
+
+ /* There may be several busy periods on the same day so we step
+ backwards to the first one. */
+ if (cmp == 0) {
+ while (middle > 0) {
+ period = &g_array_index (attendee->busy_periods,
+ EMeetingTimeSelectorPeriod, middle - 1);
+ if (g_date_compare (&tmp_date, &period->start.date) != 0)
+ break;
+ middle--;
+ }
+ } else if (cmp > 0) {
+ /* This means we couldn't find a period on the given day, and
+ the last one we looked at was before it, so if there are
+ any more periods after this one we return it. */
+ middle++;
+ if (attendee->busy_periods->len <= middle)
+ return -1;
+ }
+
+ return middle;
+}
+
+
+static void
+e_meeting_time_selector_on_zoomed_out_toggled (GtkWidget *menuitem,
+ EMeetingTimeSelector *mts)
+{
+ /* Make sure the menu pops down, which doesn't happen by default if
+ keyboard accelerators are used. */
+ if (GTK_WIDGET_VISIBLE (mts->options_menu))
+ gtk_menu_popdown (GTK_MENU (mts->options_menu));
+
+ e_meeting_time_selector_set_zoomed_out (mts, GTK_CHECK_MENU_ITEM (menuitem)->active);
+}
+
+
+static void
+e_meeting_time_selector_on_working_hours_toggled (GtkWidget *menuitem,
+ EMeetingTimeSelector *mts)
+{
+ /* Make sure the menu pops down, which doesn't happen by default if
+ keyboard accelerators are used. */
+ if (GTK_WIDGET_VISIBLE (mts->options_menu))
+ gtk_menu_popdown (GTK_MENU (mts->options_menu));
+
+ e_meeting_time_selector_set_working_hours_only (mts, GTK_CHECK_MENU_ITEM (menuitem)->active);
+}
+
+
+/* This recalculates day_width, first_hour_shown and last_hour_shown. */
+static void
+e_meeting_time_selector_recalc_grid (EMeetingTimeSelector *mts)
+{
+ if (mts->working_hours_only) {
+ mts->first_hour_shown = mts->day_start_hour;
+ mts->last_hour_shown = mts->day_end_hour;
+ if (mts->day_end_minute != 0)
+ mts->last_hour_shown += 1;
+ } else {
+ mts->first_hour_shown = 0;
+ mts->last_hour_shown = 24;
+ }
+
+ /* In the brief view we use the nearest hours divisible by 3. */
+ if (mts->zoomed_out) {
+ mts->first_hour_shown -= mts->first_hour_shown % 3;
+ mts->last_hour_shown += 2;
+ mts->last_hour_shown -= mts->last_hour_shown % 3;
+ }
+
+ mts->day_width = mts->col_width * (mts->last_hour_shown - mts->first_hour_shown);
+ if (mts->zoomed_out)
+ mts->day_width /= 3;
+
+ /* Add one pixel for the extra vertical grid line. */
+ mts->day_width++;
+
+ gnome_canvas_set_scroll_region (GNOME_CANVAS (mts->display_top),
+ 0, 0,
+ mts->day_width * E_MEETING_TIME_SELECTOR_DAYS_SHOWN,
+ mts->row_height * 3);
+ e_meeting_time_selector_update_main_canvas_scroll_region (mts);
+
+ e_meeting_time_selector_recalc_date_format (mts);
+ mts->meeting_positions_valid = FALSE;
+}
+
+
+/* This saves the first visible time in the given EMeetingTimeSelectorTime. */
+static void
+e_meeting_time_selector_save_position (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *mtstime)
+{
+ gint scroll_x, scroll_y;
+
+ gnome_canvas_get_scroll_offsets (GNOME_CANVAS (mts->display_main),
+ &scroll_x, &scroll_y);
+ e_meeting_time_selector_calculate_time (mts, scroll_x, mtstime);
+}
+
+
+/* This restores a saved position. */
+static void
+e_meeting_time_selector_restore_position (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *mtstime)
+{
+ gint scroll_x, scroll_y, new_scroll_x;
+
+ new_scroll_x = e_meeting_time_selector_calculate_time_position (mts,
+ mtstime);
+ gnome_canvas_get_scroll_offsets (GNOME_CANVAS (mts->display_main),
+ &scroll_x, &scroll_y);
+ gnome_canvas_scroll_to (GNOME_CANVAS (mts->display_main),
+ new_scroll_x, scroll_y);
+}
+
+
+/* This returns the x pixel coords of the meeting time in the entire scroll
+ region. It recalculates them if they have been marked as invalid.
+ If it returns FALSE then no meeting time is set or the meeting time is
+ not visible in the current scroll area. */
+gboolean
+e_meeting_time_selector_get_meeting_time_positions (EMeetingTimeSelector *mts,
+ gint *start_x,
+ gint *end_x)
+{
+ if (mts->meeting_positions_valid) {
+ if (mts->meeting_positions_in_scroll_area) {
+ *start_x = mts->meeting_start_x;
+ *end_x = mts->meeting_end_x;
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+ }
+
+ mts->meeting_positions_valid = TRUE;
+
+ /* Check if the days aren't in our current range. */
+ if (g_date_compare (&mts->meeting_start_time.date, &mts->last_date_shown) > 0
+ || g_date_compare (&mts->meeting_end_time.date, &mts->first_date_shown) < 0) {
+ mts->meeting_positions_in_scroll_area = FALSE;
+ return FALSE;
+ }
+
+ mts->meeting_positions_in_scroll_area = TRUE;
+ *start_x = mts->meeting_start_x = e_meeting_time_selector_calculate_time_position (mts, &mts->meeting_start_time);
+ *end_x = mts->meeting_end_x = e_meeting_time_selector_calculate_time_position (mts, &mts->meeting_end_time);
+
+ return TRUE;
+}
+
+
+/* This recalculates the date format to used, by computing the width of the
+ longest date strings in the widget's font and seeing if they fit. */
+static void
+e_meeting_time_selector_recalc_date_format (EMeetingTimeSelector *mts)
+{
+ GDate date;
+ gint max_date_width, base_width, max_weekday_width, max_month_width;
+ gint weekday, month;
+ gchar buffer[128];
+ GdkFont *font;
+
+ font = GTK_WIDGET (mts)->style->font;
+
+ /* Check if we will be able to display the full date strings. */
+ mts->date_format = E_MEETING_TIME_SELECTOR_DATE_SHORT;
+ g_date_clear (&date, 1);
+ g_date_set_dmy (&date, 20, 1, 2000);
+
+ /* Calculate the maximum date width we can fit into the display. */
+ max_date_width = mts->day_width - 2;
+
+ /* First compute the width of the date string without the day or
+ month names. */
+ g_date_strftime (buffer, 128, ", %d, %Y", &date);
+ base_width = gdk_string_width (font, buffer);
+
+ /* If that doesn't fit just return. We have to use the short format.
+ If that doesn't fit it will just be clipped. */
+ if (gdk_string_width (font, buffer) > max_date_width)
+ return;
+
+ /* Now find the biggest weekday name. We start on any day and just
+ go through seven days. */
+ max_weekday_width = 0;
+ for (weekday = 1; weekday <= 7; weekday++) {
+ g_date_strftime (buffer, 128, "%A", &date);
+ max_weekday_width = MAX (max_weekday_width,
+ gdk_string_width (font, buffer));
+ g_date_add_days (&date, 1);
+ }
+
+ /* Now find the biggest month name. */
+ max_month_width = 0;
+ for (month = 1; month <= 12; month++) {
+ g_date_set_month (&date, month);
+ g_date_strftime (buffer, 128, "%B", &date);
+ max_month_width = MAX (max_month_width,
+ gdk_string_width (font, buffer));
+ }
+
+ /* See if we can use the full date. */
+ if (base_width + max_month_width + max_weekday_width <= max_date_width) {
+ mts->date_format = E_MEETING_TIME_SELECTOR_DATE_FULL;
+ return;
+ }
+
+ /* Now try it with abbreviated weekday names. */
+ g_date_strftime (buffer, 128, " %x", &date);
+ base_width = gdk_string_width (font, buffer);
+
+ max_weekday_width = 0;
+ for (weekday = 1; weekday <= 7; weekday++) {
+ g_date_strftime (buffer, 128, "%a", &date);
+ max_weekday_width = MAX (max_weekday_width,
+ gdk_string_width (font, buffer));
+ g_date_add_days (&date, 1);
+ }
+
+ if (base_width + max_weekday_width <= max_date_width)
+ mts->date_format = E_MEETING_TIME_SELECTOR_DATE_ABBREVIATED_DAY;
+}
+
+
+/* Turn off the background of the canvas windows. This reduces flicker
+ considerably when scrolling. (Why isn't it in GnomeCanvas?). */
+static void
+e_meeting_time_selector_on_canvas_realized (GtkWidget *widget,
+ EMeetingTimeSelector *mts)
+{
+ gdk_window_set_back_pixmap (GTK_LAYOUT (widget)->bin_window,
+ NULL, FALSE);
+}
+
+
+/* This is called when the meeting start time GnomeDateEdit is changed,
+ either via the "date_changed". "time_changed" or "activate" signals on one
+ of the GtkEntry widgets. So don't use the widget parameter since it may be
+ one of the child GtkEntry widgets. */
+static void
+e_meeting_time_selector_on_start_time_changed (GtkWidget *widget,
+ EMeetingTimeSelector *mts)
+{
+ gint duration_days, duration_hours, duration_minutes;
+ EMeetingTimeSelectorTime mtstime;
+ time_t newtime;
+ struct tm *newtime_tm;
+
+ newtime = gnome_date_edit_get_date (GNOME_DATE_EDIT (mts->start_date_edit));
+ newtime_tm = localtime (&newtime);
+ g_date_clear (&mtstime.date, 1);
+ g_date_set_time (&mtstime.date, newtime);
+ mtstime.hour = newtime_tm->tm_hour;
+ mtstime.minute = newtime_tm->tm_min;
+
+ /* If the time hasn't changed, just return. */
+ if (e_meeting_time_selector_compare_times (&mtstime, &mts->meeting_start_time) == 0)
+ return;
+
+ /* Calculate the current meeting duration. */
+ e_meeting_time_selector_calculate_time_difference (&mts->meeting_start_time, &mts->meeting_end_time, &duration_days, &duration_hours, &duration_minutes);
+
+ /* Set the new start time. */
+ mts->meeting_start_time = mtstime;
+
+ /* Update the end time so the meeting duration stays the same. */
+ mts->meeting_end_time = mts->meeting_start_time;
+ e_meeting_time_selector_adjust_time (&mts->meeting_end_time, duration_days, duration_hours, duration_minutes);
+ e_meeting_time_selector_update_end_date_edit (mts);
+
+ mts->meeting_positions_valid = FALSE;
+ e_meeting_time_selector_ensure_meeting_time_shown (mts);
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+}
+
+
+/* This is called when the meeting end time GnomeDateEdit is changed,
+ either via the "date_changed", "time_changed" or "activate" signals on one
+ of the GtkEntry widgets. So don't use the widget parameter since it may be
+ one of the child GtkEntry widgets. */
+static void
+e_meeting_time_selector_on_end_time_changed (GtkWidget *widget,
+ EMeetingTimeSelector *mts)
+{
+ EMeetingTimeSelectorTime mtstime;
+ time_t newtime;
+ struct tm *newtime_tm;
+
+ newtime = gnome_date_edit_get_date (GNOME_DATE_EDIT (mts->end_date_edit));
+ newtime_tm = localtime (&newtime);
+ g_date_clear (&mtstime.date, 1);
+ g_date_set_time (&mtstime.date, newtime);
+ mtstime.hour = newtime_tm->tm_hour;
+ mtstime.minute = newtime_tm->tm_min;
+
+ /* If the time hasn't changed, just return. */
+ if (e_meeting_time_selector_compare_times (&mtstime, &mts->meeting_end_time) == 0)
+ return;
+
+ /* Set the new end time. */
+ mts->meeting_end_time = mtstime;
+
+ /* If the start time is after the end time, set it to the same time. */
+ if (e_meeting_time_selector_compare_times (&mtstime, &mts->meeting_start_time) < 0) {
+ /* We set it first, before updating the widget, so the signal
+ handler will just return. */
+ mts->meeting_start_time = mtstime;
+ e_meeting_time_selector_update_start_date_edit (mts);
+ }
+
+ mts->meeting_positions_valid = FALSE;
+ e_meeting_time_selector_ensure_meeting_time_shown (mts);
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+}
+
+
+/* This updates the ranges shown in the GnomeDateEdit popup menus, according
+ to working_hours_only etc. */
+static void
+e_meeting_time_selector_update_date_popup_menus (EMeetingTimeSelector *mts)
+{
+ GnomeDateEdit *start_edit, *end_edit;
+ gint low_hour, high_hour;
+
+ start_edit = GNOME_DATE_EDIT (mts->start_date_edit);
+ end_edit = GNOME_DATE_EDIT (mts->end_date_edit);
+
+ if (mts->working_hours_only) {
+ low_hour = mts->day_start_hour;
+ high_hour = mts->day_end_hour;
+ } else {
+ low_hour = 0;
+ high_hour = 23;
+ }
+
+ gnome_date_edit_set_popup_range (start_edit, low_hour, high_hour);
+ gnome_date_edit_set_popup_range (end_edit, low_hour, high_hour);
+}
+
+
+static void
+e_meeting_time_selector_on_canvas_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation,
+ EMeetingTimeSelector *mts)
+{
+ e_meeting_time_selector_update_main_canvas_scroll_region (mts);
+
+ e_meeting_time_selector_ensure_meeting_time_shown (mts);
+}
+
+
+static void
+e_meeting_time_selector_on_attendees_list_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation,
+ EMeetingTimeSelector *mts)
+{
+ e_meeting_time_selector_update_attendees_list_scroll_region (mts);
+ e_meeting_time_selector_update_attendees_list_positions (mts);
+}
+
+
+/* This updates the list canvas scroll region according to the number of
+ attendees. If the total height needed is less than the height of the canvas,
+ we must use the height of the canvas, or it causes problems. */
+static void
+e_meeting_time_selector_update_attendees_list_scroll_region (EMeetingTimeSelector *mts)
+{
+ gint height, canvas_width, canvas_height;
+
+ height = mts->row_height * mts->attendees->len;
+ canvas_width = GTK_WIDGET (mts->attendees_list)->allocation.width;
+ canvas_height = GTK_WIDGET (mts->attendees_list)->allocation.height;
+
+ height = MAX (height, canvas_height);
+
+ gnome_canvas_set_scroll_region (GNOME_CANVAS (mts->attendees_list),
+ 0, 0,
+ canvas_width,
+ height);
+}
+
+
+/* This updates the canvas scroll regions according to the number of attendees.
+ If the total height needed is less than the height of the canvas, we must
+ use the height of the canvas, or it causes problems. */
+static void
+e_meeting_time_selector_update_main_canvas_scroll_region (EMeetingTimeSelector *mts)
+{
+ gint height, canvas_height, list_width;
+
+ height = mts->row_height * mts->attendees->len;
+ canvas_height = GTK_WIDGET (mts->display_main)->allocation.height;
+ list_width = GTK_WIDGET (mts->attendees_list)->allocation.width;
+
+ height = MAX (height, canvas_height);
+
+ gnome_canvas_set_scroll_region (GNOME_CANVAS (mts->attendees_list),
+ 0, 0,
+ list_width,
+ height);
+ gnome_canvas_set_scroll_region (GNOME_CANVAS (mts->display_main),
+ 0, 0,
+ mts->day_width * E_MEETING_TIME_SELECTOR_DAYS_SHOWN,
+ height);
+}
+
+
+/* This changes the meeting time based on the given x coordinate and whether
+ we are dragging the start or end bar. It returns the new position, which
+ will be swapped if the start bar is dragged past the end bar or vice versa.
+ It make sure the meeting time is never dragged outside the visible canvas
+ area. */
+void
+e_meeting_time_selector_drag_meeting_time (EMeetingTimeSelector *mts,
+ gint x)
+{
+ EMeetingTimeSelectorTime first_time, last_time, drag_time, *time_to_set;
+ gint scroll_x, scroll_y, canvas_width;
+ gboolean set_both_times = FALSE;
+
+ /* Get the x coords of visible part of the canvas. */
+ gnome_canvas_get_scroll_offsets (GNOME_CANVAS (mts->display_main),
+ &scroll_x, &scroll_y);
+ canvas_width = mts->display_main->allocation.width;
+
+ /* Save the x coordinate for the timeout handler. */
+ mts->last_drag_x = (x < scroll_x) ? x - scroll_x
+ : x - scroll_x - canvas_width + 1;
+
+ /* Check if the mouse is off the edge of the canvas. */
+ if (x < scroll_x || x > scroll_x + canvas_width) {
+ /* If we haven't added a timeout function, add one. */
+ if (mts->auto_scroll_timeout_id == 0) {
+ mts->auto_scroll_timeout_id = g_timeout_add (60, e_meeting_time_selector_timeout_handler, mts);
+ mts->scroll_count = 0;
+
+ /* Call the handler to start scrolling now. */
+ e_meeting_time_selector_timeout_handler (mts);
+ return;
+ }
+ } else {
+ e_meeting_time_selector_remove_timeout (mts);
+ }
+
+ /* Calculate the minimum & maximum times we can use, based on the
+ scroll offsets and whether zoomed_out is set. */
+ e_meeting_time_selector_calculate_time (mts, scroll_x, &first_time);
+ e_meeting_time_selector_calculate_time (mts, scroll_x + canvas_width - 1,
+ &last_time);
+ if (mts->zoomed_out) {
+ if (first_time.minute > 30)
+ first_time.hour++;
+ first_time.minute = 0;
+ last_time.minute = 0;
+ } else {
+ first_time.minute += 15;
+ first_time.minute -= first_time.minute % 30;
+ last_time.minute -= last_time.minute % 30;
+ }
+ e_meeting_time_selector_fix_time_overflows (&first_time);
+ e_meeting_time_selector_fix_time_overflows (&last_time);
+
+ /* Calculate the time from x coordinate. */
+ e_meeting_time_selector_calculate_time (mts, x, &drag_time);
+
+ /* Calculate the nearest half-hour or hour, depending on whether
+ zoomed_out is set. */
+ if (mts->zoomed_out) {
+ if (drag_time.minute > 30)
+ drag_time.hour++;
+ drag_time.minute = 0;
+ } else {
+ drag_time.minute += 15;
+ drag_time.minute -= drag_time.minute % 30;
+ }
+ e_meeting_time_selector_fix_time_overflows (&drag_time);
+
+ /* Now make sure we are between first_time & last_time. */
+ if (e_meeting_time_selector_compare_times (&drag_time, &first_time) < 0)
+ drag_time = first_time;
+ if (e_meeting_time_selector_compare_times (&drag_time, &last_time) > 0)
+ drag_time = last_time;
+
+ /* Set the meeting start or end time to drag_time. */
+ if (mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+ time_to_set = &mts->meeting_start_time;
+ else
+ time_to_set = &mts->meeting_end_time;
+
+ /* If the time is unchanged, just return. */
+ if (e_meeting_time_selector_compare_times (time_to_set, &drag_time) == 0)
+ return;
+
+ *time_to_set = drag_time;
+
+ /* Check if the start time and end time need to be switched. */
+ if (e_meeting_time_selector_compare_times (&mts->meeting_start_time,
+ &mts->meeting_end_time) > 0) {
+ drag_time = mts->meeting_start_time;
+ mts->meeting_start_time = mts->meeting_end_time;
+ mts->meeting_end_time = drag_time;
+
+ if (mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+ mts->dragging_position = E_MEETING_TIME_SELECTOR_POS_END;
+ else
+ mts->dragging_position = E_MEETING_TIME_SELECTOR_POS_START;
+
+ set_both_times = TRUE;
+ }
+
+ /* Mark the calculated positions as invalid. */
+ mts->meeting_positions_valid = FALSE;
+
+ /* Redraw the canvases. */
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+
+ /* Set the times in the GnomeDateEdit widgets. */
+ if (set_both_times
+ || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+ e_meeting_time_selector_update_start_date_edit (mts);
+
+ if (set_both_times
+ || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_END)
+ e_meeting_time_selector_update_end_date_edit (mts);
+}
+
+
+/* This is the timeout function which handles auto-scrolling when the user is
+ dragging one of the meeting time vertical bars outside the left or right
+ edge of the canvas. */
+static gboolean
+e_meeting_time_selector_timeout_handler (gpointer data)
+{
+ EMeetingTimeSelector *mts;
+ EMeetingTimeSelectorTime drag_time, *time_to_set;
+ gint scroll_x, max_scroll_x, scroll_y, canvas_width;
+ gint scroll_speed, scroll_offset;
+ gboolean set_both_times = FALSE;
+
+ mts = E_MEETING_TIME_SELECTOR (data);
+
+ GDK_THREADS_ENTER ();
+
+ /* Return if we don't need to scroll yet. */
+ if (mts->scroll_count-- > 0) {
+ GDK_THREADS_LEAVE ();
+ return TRUE;
+ }
+
+ /* Get the x coords of visible part of the canvas. */
+ gnome_canvas_get_scroll_offsets (GNOME_CANVAS (mts->display_main),
+ &scroll_x, &scroll_y);
+ canvas_width = mts->display_main->allocation.width;
+
+ /* Calculate the scroll delay, between 0 and MAX_SCROLL_SPEED. */
+ scroll_speed = abs (mts->last_drag_x / E_MEETING_TIME_SELECTOR_SCROLL_INCREMENT_WIDTH);
+ scroll_speed = MIN (scroll_speed,
+ E_MEETING_TIME_SELECTOR_MAX_SCROLL_SPEED);
+
+ /* Reset the scroll count. */
+ mts->scroll_count = E_MEETING_TIME_SELECTOR_MAX_SCROLL_SPEED - scroll_speed;
+
+ /* Calculate how much we need to scroll. */
+ if (mts->last_drag_x >= 0)
+ scroll_offset = mts->col_width;
+ else
+ scroll_offset = -mts->col_width;
+
+ scroll_x += scroll_offset;
+ max_scroll_x = (mts->day_width * E_MEETING_TIME_SELECTOR_DAYS_SHOWN)
+ - canvas_width;
+ scroll_x = CLAMP (scroll_x, 0, max_scroll_x);
+
+ /* Calculate the minimum or maximum visible time in the canvas, which
+ we will now set the dragged time to. */
+ if (scroll_offset > 0) {
+ e_meeting_time_selector_calculate_time (mts,
+ scroll_x + canvas_width - 1,
+ &drag_time);
+ if (mts->zoomed_out) {
+ drag_time.minute = 0;
+ } else {
+ drag_time.minute -= drag_time.minute % 30;
+ }
+ } else {
+ e_meeting_time_selector_calculate_time (mts, scroll_x,
+ &drag_time);
+ if (mts->zoomed_out) {
+ if (drag_time.minute > 30)
+ drag_time.hour++;
+ drag_time.minute = 0;
+ } else {
+ drag_time.minute += 15;
+ drag_time.minute -= drag_time.minute % 30;
+ }
+ }
+ e_meeting_time_selector_fix_time_overflows (&drag_time);
+
+ /* Set the meeting start or end time to drag_time. */
+ if (mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+ time_to_set = &mts->meeting_start_time;
+ else
+ time_to_set = &mts->meeting_end_time;
+
+ /* If the time is unchanged, just return. */
+ if (e_meeting_time_selector_compare_times (time_to_set, &drag_time) == 0) {
+ GDK_THREADS_LEAVE ();
+ return TRUE;
+ }
+
+ *time_to_set = drag_time;
+
+ /* Check if the start time and end time need to be switched. */
+ if (e_meeting_time_selector_compare_times (&mts->meeting_start_time, &mts->meeting_end_time) > 0) {
+ drag_time = mts->meeting_start_time;
+ mts->meeting_start_time = mts->meeting_end_time;
+ mts->meeting_end_time = drag_time;
+
+ if (mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+ mts->dragging_position = E_MEETING_TIME_SELECTOR_POS_END;
+ else
+ mts->dragging_position = E_MEETING_TIME_SELECTOR_POS_START;
+
+ set_both_times = TRUE;
+ }
+
+ /* Mark the calculated positions as invalid. */
+ mts->meeting_positions_valid = FALSE;
+
+ /* Set the times in the GnomeDateEdit widgets. */
+ if (set_both_times
+ || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_START)
+ e_meeting_time_selector_update_start_date_edit (mts);
+
+ if (set_both_times
+ || mts->dragging_position == E_MEETING_TIME_SELECTOR_POS_END)
+ e_meeting_time_selector_update_end_date_edit (mts);
+
+ /* Redraw the canvases. We freeze and thaw the layouts so that they
+ get redrawn completely. Otherwise the pixels get scrolled left or
+ right which is not good for us (since our vertical bars have been
+ moved) and causes flicker. */
+ gtk_layout_freeze (GTK_LAYOUT (mts->display_main));
+ gtk_layout_freeze (GTK_LAYOUT (mts->display_top));
+ gnome_canvas_scroll_to (GNOME_CANVAS (mts->display_main),
+ scroll_x, scroll_y);
+ gnome_canvas_scroll_to (GNOME_CANVAS (mts->display_top),
+ scroll_x, scroll_y);
+ gtk_layout_thaw (GTK_LAYOUT (mts->display_main));
+ gtk_layout_thaw (GTK_LAYOUT (mts->display_top));
+
+ GDK_THREADS_LEAVE ();
+ return TRUE;
+}
+
+
+/* This removes our auto-scroll timeout function, if we have one installed. */
+void
+e_meeting_time_selector_remove_timeout (EMeetingTimeSelector *mts)
+{
+ if (mts->auto_scroll_timeout_id) {
+ g_source_remove (mts->auto_scroll_timeout_id);
+ mts->auto_scroll_timeout_id = 0;
+ }
+}
+
+
+/* This updates the GnomeDateEdit widget displaying the meeting start time. */
+static void
+e_meeting_time_selector_update_start_date_edit (EMeetingTimeSelector *mts)
+{
+ struct tm start_tm;
+ time_t start_time_t;
+
+ g_date_to_struct_tm (&mts->meeting_start_time.date, &start_tm);
+ start_tm.tm_hour = mts->meeting_start_time.hour;
+ start_tm.tm_min = mts->meeting_start_time.minute;
+ start_time_t = mktime (&start_tm);
+ gnome_date_edit_set_time (GNOME_DATE_EDIT (mts->start_date_edit),
+ start_time_t);
+}
+
+
+/* This updates the GnomeDateEdit widget displaying the meeting end time. */
+static void
+e_meeting_time_selector_update_end_date_edit (EMeetingTimeSelector *mts)
+{
+ struct tm end_tm;
+ time_t end_time_t;
+
+ g_date_to_struct_tm (&mts->meeting_end_time.date, &end_tm);
+ end_tm.tm_hour = mts->meeting_end_time.hour;
+ end_tm.tm_min = mts->meeting_end_time.minute;
+ end_time_t = mktime (&end_tm);
+ gnome_date_edit_set_time (GNOME_DATE_EDIT (mts->end_date_edit),
+ end_time_t);
+}
+
+
+/* This ensures that the meeting time is shown on screen, by scrolling the
+ canvas and possibly by changing the range of dates shown in the canvas. */
+static void
+e_meeting_time_selector_ensure_meeting_time_shown (EMeetingTimeSelector *mts)
+{
+ gint start_x, end_x, scroll_x, scroll_y, canvas_width;
+ gint new_scroll_x;
+ gboolean fits_in_canvas;
+
+ /* Check if we need to change the range of dates shown. */
+ if (g_date_compare (&mts->meeting_start_time.date,
+ &mts->first_date_shown) < 0
+ || g_date_compare (&mts->meeting_end_time.date,
+ &mts->last_date_shown) > 0) {
+ e_meeting_time_selector_update_dates_shown (mts);
+ gtk_widget_queue_draw (mts->display_top);
+ gtk_widget_queue_draw (mts->display_main);
+ }
+
+ /* If all of the meeting time is visible, just return. */
+ e_meeting_time_selector_get_meeting_time_positions (mts, &start_x,
+ &end_x);
+ gnome_canvas_get_scroll_offsets (GNOME_CANVAS (mts->display_main),
+ &scroll_x, &scroll_y);
+ canvas_width = mts->display_main->allocation.width;
+ if (start_x > scroll_x && end_x <= scroll_x + canvas_width)
+ return;
+
+ fits_in_canvas = end_x - start_x < canvas_width ? TRUE : FALSE;
+
+ /* If the meeting is not entirely visible, either center it if it is
+ smaller than the canvas, or show the start of it if it is big. */
+ if (fits_in_canvas) {
+ new_scroll_x = (start_x + end_x - canvas_width) / 2;
+ } else {
+ new_scroll_x = start_x;
+ }
+ gnome_canvas_scroll_to (GNOME_CANVAS (mts->display_main),
+ new_scroll_x, scroll_y);
+}
+
+
+/* This updates the range of dates shown in the canvas, to make sure that the
+ currently selected meeting time is in the range. */
+static void
+e_meeting_time_selector_update_dates_shown (EMeetingTimeSelector *mts)
+{
+ mts->first_date_shown = mts->meeting_start_time.date;
+ g_date_subtract_days (&mts->first_date_shown, 60);
+
+ mts->last_date_shown = mts->first_date_shown;
+ g_date_add_days (&mts->last_date_shown, E_MEETING_TIME_SELECTOR_DAYS_SHOWN - 1);
+}
+
+
+/* This checks if the time's hour is over 24 or its minute is over 60 and if
+ so it updates the day/hour appropriately. Note that hours and minutes are
+ stored in guint8's so they can't overflow by much. */
+void
+e_meeting_time_selector_fix_time_overflows (EMeetingTimeSelectorTime *mtstime)
+{
+ gint hours_to_add, days_to_add;
+
+ hours_to_add = mtstime->minute / 60;
+ if (hours_to_add > 0) {
+ mtstime->minute -= hours_to_add * 60;
+ mtstime->hour += hours_to_add;
+ }
+
+ days_to_add = mtstime->hour / 24;
+ if (days_to_add > 0) {
+ mtstime->hour -= days_to_add * 24;
+ g_date_add_days (&mtstime->date, days_to_add);
+ }
+}
+
+
+static void
+e_meeting_time_selector_update_attendees_list_positions (EMeetingTimeSelector *mts)
+{
+ EMeetingTimeSelectorAttendee *attendee;
+ gint list_width, item_width;
+ gint row;
+
+ list_width = GTK_WIDGET (mts->attendees_list)->allocation.width;
+ item_width = MAX (1, list_width - E_MEETING_TIME_SELECTOR_ICON_COLUMN_WIDTH);
+ for (row = 0; row < mts->attendees->len; row++) {
+ attendee = &g_array_index (mts->attendees,
+ EMeetingTimeSelectorAttendee, row);
+
+ gnome_canvas_item_set (attendee->text_item,
+ "GnomeCanvasWidget::y", (gdouble) (row * mts->row_height),
+ "GnomeCanvasWidget::width", (gdouble) item_width,
+ "GnomeCanvasWidget::height", (gdouble) (mts->row_height),
+ NULL);
+
+ gnome_canvas_item_show (attendee->text_item);
+ }
+
+}
+
+
+/*
+ * CONVERSION ROUTINES - functions to convert between different coordinate
+ * spaces and dates.
+ */
+
+/* This takes an x pixel coordinate within the entire canvas scroll region and
+ returns the date in which it falls. If day_position is not NULL it also
+ returns the x coordinate within the date, relative to the visible part of
+ the canvas. It is used when painting the days in the item_draw function.
+ Note that it must handle negative x coordinates in case we are dragging off
+ the edge of the canvas. */
+void
+e_meeting_time_selector_calculate_day_and_position (EMeetingTimeSelector *mts,
+ gint x,
+ GDate *date,
+ gint *day_position)
+{
+ gint days_from_first_shown;
+
+ *date = mts->first_date_shown;
+
+ if (x >= 0) {
+ days_from_first_shown = x / mts->day_width;
+ g_date_add_days (date, days_from_first_shown);
+ if (day_position)
+ *day_position = - x % mts->day_width;
+ } else {
+ days_from_first_shown = -x / mts->day_width + 1;
+ g_date_subtract_days (date, days_from_first_shown);
+ if (day_position)
+ *day_position = -mts->day_width - x % mts->day_width;
+ }
+}
+
+
+/* This takes an x pixel coordinate within a day, and converts it to hours
+ and minutes, depending on working_hours_only and zoomed_out. */
+void
+e_meeting_time_selector_convert_day_position_to_hours_and_mins (EMeetingTimeSelector *mts, gint day_position, guint8 *hours, guint8 *minutes)
+{
+ if (mts->zoomed_out)
+ day_position *= 3;
+
+ /* Calculate the hours & minutes from the first displayed. */
+ *hours = day_position / mts->col_width;
+ *minutes = (day_position % mts->col_width) * 60 / mts->col_width;
+
+ /* Now add on the first hour shown. */
+ *hours += mts->first_hour_shown;
+}
+
+
+/* This takes an x pixel coordinate within the entire canvas scroll region and
+ returns the time in which it falls. Note that it won't be extremely
+ accurate since hours may only be a few pixels wide in the display.
+ With zoomed_out set each pixel may represent 5 minutes or more, depending
+ on how small the font is. */
+void
+e_meeting_time_selector_calculate_time (EMeetingTimeSelector *mts,
+ gint x,
+ EMeetingTimeSelectorTime *time)
+{
+ gint day_position;
+
+ /* First get the day and the x position within the day. */
+ e_meeting_time_selector_calculate_day_and_position (mts, x, &time->date,
+ NULL);
+
+ /* Now convert the day_position into an hour and minute. */
+ if (x >= 0)
+ day_position = x % mts->day_width;
+ else
+ day_position = mts->day_width + x % mts->day_width;
+
+ e_meeting_time_selector_convert_day_position_to_hours_and_mins (mts, day_position, &time->hour, &time->minute);
+}
+
+
+/* This takes a EMeetingTimeSelectorTime and calculates the x pixel coordinate
+ within the entire canvas scroll region. It is used to draw the selected
+ meeting time and all the busy periods. */
+gint
+e_meeting_time_selector_calculate_time_position (EMeetingTimeSelector *mts,
+ EMeetingTimeSelectorTime *mtstime)
+{
+ gint x, date_offset, day_offset;
+
+ /* Calculate the number of days since the first date shown in the
+ entire canvas scroll region. */
+ date_offset = g_date_julian (&mtstime->date) - g_date_julian (&mts->first_date_shown);
+
+ /* Calculate the x pixel coordinate of the start of the day. */
+ x = date_offset * mts->day_width;
+
+ /* Add on the hours and minutes, depending on whether zoomed_out and
+ working_hours_only are set. */
+ day_offset = (mtstime->hour - mts->first_hour_shown) * 60
+ + mtstime->minute;
+ /* The day width includes an extra vertical grid line so subtract 1. */
+ day_offset *= (mts->day_width - 1);
+ day_offset /= (mts->last_hour_shown - mts->first_hour_shown) * 60;
+
+ /* Clamp the day_offset in case the time isn't actually visible. */
+ x += CLAMP (day_offset, 0, mts->day_width);
+
+ return x;
+}
+
+