/* gcal-event-widget.c * * Copyright (C) 2015 Erick Pérez Castellanos * * gnome-calendar 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 3 of the License, or * (at your option) any later version. * * gnome-calendar 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, see . */ #define G_LOG_DOMAIN "GcalEventWidget" #include #include #include #include "gcal-application.h" #include "gcal-context.h" #include "gcal-clock.h" #include "gcal-debug.h" #include "gcal-event-popover.h" #include "gcal-event-widget.h" #include "gcal-utils.h" #define DESC_MAX_CHAR 200 #define INTENSITY(c) ((c->red) * 0.30 + (c->green) * 0.59 + (c->blue) * 0.11) #define ICON_SIZE 16 typedef struct { GcalEventWidget *event_widget; GcalEventPreviewCallback callback; gpointer user_data; } PreviewData; struct _GcalEventWidget { GtkWidget parent; /* properties */ GDateTime *dt_start; GDateTime *dt_end; /* widgets */ GtkWidget *color_box; GtkWidget *horizontal_box; GtkWidget *hour_label; GtkWidget *stack; GtkWidget *summary_label; GtkWidget *vertical_box; GtkEventController *drag_source; /* internal data */ gboolean clock_format_24h : 1; gboolean read_only : 1; gchar *css_class; GcalEvent *event; GtkOrientation orientation; guint vertical_label_source_id; gboolean vertical_value_to_set; gboolean vertical_labels; gint old_width; gint old_height; GcalContext *context; }; enum { PROP_0, PROP_CONTEXT, PROP_DATE_END, PROP_DATE_START, PROP_EVENT, PROP_ORIENTATION, NUM_PROPS }; enum { ACTIVATE, NUM_SIGNALS }; typedef enum { CURSOR_NONE, CURSOR_GRAB, CURSOR_GRABBING } CursorType; static guint signals[NUM_SIGNALS] = { 0, }; G_DEFINE_TYPE_WITH_CODE (GcalEventWidget, gcal_event_widget, GTK_TYPE_WIDGET, G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL)); /* * Auxiliary methods */ static gboolean can_hold_vertical_labels_with_height (GcalEventWidget *self, gint height) { gint total_height; gtk_widget_measure (self->vertical_box, GTK_ORIENTATION_VERTICAL, -1, &total_height, NULL, NULL, NULL); return height >= total_height; } static void set_vertical_labels (GcalEventWidget *self, gboolean vertical) { if (self->vertical_labels == vertical) return; gtk_stack_set_visible_child (GTK_STACK (self->stack), vertical ? self->vertical_box : self->horizontal_box); self->vertical_labels = vertical; } static gboolean set_vertical_labels_in_idle_cb (gpointer data) { GcalEventWidget *self = (GcalEventWidget*) data; set_vertical_labels (self, self->vertical_value_to_set); self->vertical_label_source_id = 0; return G_SOURCE_REMOVE; } static void queue_set_vertical_labels (GcalEventWidget *self, gboolean vertical) { if (self->vertical_label_source_id > 0) { g_source_remove (self->vertical_label_source_id); self->vertical_label_source_id = 0; } if (self->vertical_labels == vertical) return; self->vertical_value_to_set = vertical; self->vertical_label_source_id = g_idle_add (set_vertical_labels_in_idle_cb, self); } static void gcal_event_widget_update_style (GcalEventWidget *self) { gboolean slanted_start; gboolean slanted_end; gboolean timed; slanted_start = FALSE; slanted_end = FALSE; /* Clear previous style classes */ gtk_widget_remove_css_class (GTK_WIDGET (self), "slanted"); gtk_widget_remove_css_class (GTK_WIDGET (self), "slanted-start"); gtk_widget_remove_css_class (GTK_WIDGET (self), "slanted-end"); /* * If the event's dates differs from the widget's dates, * add a slanted edge class at the widget. */ if (self->dt_start) slanted_start = g_date_time_compare (gcal_event_get_date_start (self->event), self->dt_start) != 0; if (self->dt_end) slanted_end = g_date_time_compare (gcal_event_get_date_end (self->event), self->dt_end) != 0; if (slanted_start && slanted_end) gtk_widget_add_css_class (GTK_WIDGET (self), "slanted"); else if (slanted_start) gtk_widget_add_css_class (GTK_WIDGET (self), "slanted-start"); else if (slanted_end) gtk_widget_add_css_class (GTK_WIDGET (self), "slanted-end"); /* Add style classes for orientation selectors */ if (self->orientation == GTK_ORIENTATION_HORIZONTAL) { gtk_widget_remove_css_class (GTK_WIDGET (self), "vertical"); gtk_widget_add_css_class (GTK_WIDGET (self), "horizontal"); } else { gtk_widget_remove_css_class (GTK_WIDGET (self), "horizontal"); gtk_widget_add_css_class (GTK_WIDGET (self), "vertical"); } /* * If the event is a timed, single-day event, draw it differently * from all-day or multi-day events. */ timed = !gcal_event_get_all_day (self->event) && !gcal_event_is_multiday (self->event); gtk_widget_set_visible (self->color_box, timed); if (timed) { gtk_widget_add_css_class (GTK_WIDGET (self), "timed"); if (self->orientation == GTK_ORIENTATION_HORIZONTAL) { gtk_widget_set_margin_start (self->stack, 0); gtk_widget_set_margin_end (self->stack, 2); } else { gtk_widget_set_visible (self->color_box, FALSE); } } } static void update_color (GcalEventWidget *self) { GdkRGBA *color; GQuark color_id; gchar *color_str; gchar *css_class; GDateTime *now; gint date_compare; color = gcal_event_get_color (self->event); now = g_date_time_new_now_local (); date_compare = g_date_time_compare (self->dt_end, now); /* Fades out an event that's earlier than the current date */ gtk_widget_set_opacity (GTK_WIDGET (self), date_compare < 0 ? 0.6 : 1.0); /* Remove the old style class */ if (self->css_class) { gtk_widget_remove_css_class (GTK_WIDGET (self), self->css_class); g_clear_pointer (&self->css_class, g_free); } color_str = gdk_rgba_to_string (color); color_id = g_quark_from_string (color_str); css_class = g_strdup_printf ("color-%d", color_id); gtk_widget_add_css_class (GTK_WIDGET (self), css_class); if (INTENSITY (color) > 0.5) { gtk_widget_remove_css_class (GTK_WIDGET (self), "color-dark"); gtk_widget_add_css_class (GTK_WIDGET (self), "color-light"); } else { gtk_widget_remove_css_class (GTK_WIDGET (self), "color-light"); gtk_widget_add_css_class (GTK_WIDGET (self), "color-dark"); } /* Keep the current style around, so we can remove it later */ self->css_class = css_class; g_clear_pointer (&now, g_date_time_unref); g_free (color_str); } static void gcal_event_widget_set_event_tooltip (GcalEventWidget *self, GcalEvent *event) { g_autoptr (GDateTime) tooltip_start, tooltip_end; g_autofree gchar *start, *end, *escaped_summary; GString *tooltip_mesg; gboolean allday, multiday, is_ltr; guint description_len; tooltip_mesg = g_string_new (NULL); escaped_summary = g_markup_escape_text (gcal_event_get_summary (event), -1); g_string_append_printf (tooltip_mesg, "%s", escaped_summary); allday = gcal_event_get_all_day (event); multiday = gcal_event_is_multiday (event); is_ltr = gtk_widget_get_direction (GTK_WIDGET (self)) != GTK_TEXT_DIR_RTL; if (allday) { /* All day events span from [ start, end - 1 day ] */ tooltip_start = g_date_time_ref (gcal_event_get_date_start (event)); tooltip_end = g_date_time_add_days (gcal_event_get_date_end (event), -1); if (multiday) { start = g_date_time_format (tooltip_start, "%x"); end = g_date_time_format (tooltip_end, "%x"); } else { start = g_date_time_format (tooltip_start, "%x"); end = NULL; } } else { tooltip_start = g_date_time_to_local (gcal_event_get_date_start (event)); tooltip_end = g_date_time_to_local (gcal_event_get_date_end (event)); if (multiday) { if (self->clock_format_24h) { if (is_ltr) { start = g_date_time_format (tooltip_start, "%x %R"); end = g_date_time_format (tooltip_end, "%x %R"); } else { start = g_date_time_format (tooltip_start, "%R %x"); end = g_date_time_format (tooltip_end, "%R %x"); } } else { if (is_ltr) { start = g_date_time_format (tooltip_start, "%x %I:%M %P"); end = g_date_time_format (tooltip_end, "%x %I:%M %P"); } else { start = g_date_time_format (tooltip_start, "%P %M:%I %x"); end = g_date_time_format (tooltip_end, "%P %M:%I %x"); } } } else { if (self->clock_format_24h) { if (is_ltr) { start = g_date_time_format (tooltip_start, "%x, %R"); end = g_date_time_format (tooltip_end, "%R"); } else { start = g_date_time_format (tooltip_start, "%R ,%x"); end = g_date_time_format (tooltip_end, "%R"); } } else { if (is_ltr) { start = g_date_time_format (tooltip_start, "%x, %I:%M %P"); end = g_date_time_format (tooltip_end, "%I:%M %P"); } else { start = g_date_time_format (tooltip_start, "%P %M:%I ,%x"); end = g_date_time_format (tooltip_end, "%P %M:%I"); } } } } if (allday && !multiday) { g_string_append_printf (tooltip_mesg, "\n%s", start); } else { g_string_append_printf (tooltip_mesg, "\n%s - %s", is_ltr ? start : end, is_ltr ? end : start); } /* Append event location */ if (g_utf8_strlen (gcal_event_get_location (event), -1) > 0) { g_autofree gchar *escaped_location; escaped_location = g_markup_escape_text (gcal_event_get_location (event), -1); g_string_append (tooltip_mesg, "\n\n"); /* Translators: %s is the location of the event (e.g. "Downtown, 3rd Avenue") */ g_string_append_printf (tooltip_mesg, _("At %s"), escaped_location); } description_len = g_utf8_strlen (gcal_event_get_description (event), -1); /* Truncate long descriptions at a white space and ellipsize */ if (description_len > 0) { g_autofree gchar *escaped_description; GString *tooltip_desc; tooltip_desc = g_string_new (gcal_event_get_description (event)); /* If the description is larger than DESC_MAX_CHAR, ellipsize it */ if (description_len > DESC_MAX_CHAR) { g_string_truncate (tooltip_desc, DESC_MAX_CHAR - 1); g_string_append (tooltip_desc, "…"); } escaped_description = g_markup_escape_text (tooltip_desc->str, -1); g_string_append_printf (tooltip_mesg, "\n\n%s", escaped_description); g_string_free (tooltip_desc, TRUE); } gtk_widget_set_tooltip_markup (GTK_WIDGET (self), tooltip_mesg->str); g_string_free (tooltip_mesg, TRUE); } static gchar* get_hour_label (GcalEventWidget *self) { g_autoptr (GDateTime) local_start_time; local_start_time = g_date_time_to_local (gcal_event_get_date_start (self->event)); if (self->clock_format_24h) return g_date_time_format (local_start_time, "%R"); else return g_date_time_format (local_start_time, "%I:%M %P"); } static void gcal_event_widget_set_event_internal (GcalEventWidget *self, GcalEvent *event) { g_autofree gchar *hour_str = NULL; /* * This function is called only once, since the property is * set as CONSTRUCT_ONLY. Any other attempt to set an event * will be ignored. * * Because of that condition, we don't really have to care about * disconnecting functions or cleaning up the previous event. */ /* The event spawns with a floating reference, and we take it's ownership */ g_set_object (&self->event, event); /* * Initially, the widget's start and end dates are the same * of the event's ones. We may change it afterwards. */ gcal_event_widget_set_date_start (self, gcal_event_get_date_start (event)); gcal_event_widget_set_date_end (self, gcal_event_get_date_end (event)); /* Update color */ update_color (self); g_signal_connect_object (event, "notify::color", G_CALLBACK (update_color), self, G_CONNECT_SWAPPED); g_signal_connect_object (event, "notify::summary", G_CALLBACK (gtk_widget_queue_draw), self, G_CONNECT_SWAPPED); /* Tooltip */ gcal_event_widget_set_event_tooltip (self, event); /* Hour label */ hour_str = get_hour_label (self); gtk_widget_set_visible (self->hour_label, !gcal_event_get_all_day (event)); gtk_label_set_label (GTK_LABEL (self->hour_label), hour_str); /* Summary label */ g_object_bind_property (event, "summary", self->summary_label, "label", G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE); } static void reply_preview_callback (GtkWidget *event_popover, PreviewData *data, GcalEventPreviewAction action) { if (data->callback) data->callback (data->event_widget, action, data->user_data); g_signal_handlers_disconnect_by_data (event_popover, data); gtk_popover_popdown (GTK_POPOVER (event_popover)); gtk_widget_unparent (event_popover); g_clear_pointer (&data, g_free); } /* * Callbacks */ static void on_click_gesture_pressed_cb (GtkGestureClick *click_gesture, gint n_press, gdouble x, gdouble y, GcalEventWidget *self) { gtk_gesture_set_state (GTK_GESTURE (click_gesture), GTK_EVENT_SEQUENCE_CLAIMED); } static void on_click_gesture_release_cb (GtkGestureClick *click_gesture, gint n_press, gdouble x, gdouble y, GcalEventWidget *self) { gtk_gesture_set_state (GTK_GESTURE (click_gesture), GTK_EVENT_SEQUENCE_CLAIMED); g_signal_emit (self, signals[ACTIVATE], 0); } static void on_drag_source_begin_cb (GtkDragSource *source, GdkDrag *drag, GcalEventWidget *self) { g_autoptr (GdkPaintable) paintable = NULL; paintable = gtk_widget_paintable_new (GTK_WIDGET (self)); gtk_drag_source_set_icon (source, paintable, 0, 0); } static GdkContentProvider* on_drag_source_prepare_cb (GtkDragSource *source, gdouble x, gdouble y, GcalEventWidget *self) { return gdk_content_provider_new_typed (GCAL_TYPE_EVENT_WIDGET, self); } static void on_event_popover_closed_cb (GtkWidget *event_popover, PreviewData *data) { reply_preview_callback (event_popover, data, GCAL_EVENT_PREVIEW_ACTION_NONE); } static void on_event_popover_edit_cb (GtkWidget *event_popover, PreviewData *data) { reply_preview_callback (event_popover, data, GCAL_EVENT_PREVIEW_ACTION_EDIT); } /* * GtkWidget overrides */ static void gcal_event_widget_size_allocate (GtkWidget *widget, gint width, gint height, gint baseline) { GcalEventWidget *self = GCAL_EVENT_WIDGET (widget); gtk_widget_allocate (GTK_WIDGET (self->stack), width, height, baseline, NULL); if (self->old_width != width || self->old_height != height) { if (self->orientation == GTK_ORIENTATION_HORIZONTAL || gcal_event_get_all_day (self->event)) return; queue_set_vertical_labels (self, can_hold_vertical_labels_with_height (self, height)); self->old_width = width; self->old_height = height; } } static void gcal_event_widget_measure (GtkWidget *widget, GtkOrientation orientation, gint for_size, gint *minimum, gint *natural, gint *minimum_baseline, gint *natural_baseline) { GcalEventWidget *self = GCAL_EVENT_WIDGET (widget); gtk_widget_measure (GTK_WIDGET (self->stack), orientation, for_size, minimum, natural, minimum_baseline, natural_baseline); } /* * GObject overrides */ static void gcal_event_widget_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { GcalEventWidget *self = GCAL_EVENT_WIDGET (object); switch (property_id) { case PROP_CONTEXT: g_assert (self->context == NULL); self->context = g_value_dup_object (value); g_signal_connect_object (gcal_context_get_clock (self->context), "minute-changed", G_CALLBACK (update_color), self, G_CONNECT_SWAPPED); break; case PROP_DATE_END: gcal_event_widget_set_date_end (self, g_value_get_boxed (value)); break; case PROP_DATE_START: gcal_event_widget_set_date_start (self, g_value_get_boxed (value)); break; case PROP_EVENT: gcal_event_widget_set_event_internal (self, g_value_get_object (value)); break; case PROP_ORIENTATION: self->orientation = g_value_get_enum (value); gtk_widget_set_visible (self->vertical_box, self->orientation == GTK_ORIENTATION_VERTICAL); gcal_event_widget_update_style (self); g_object_notify (object, "orientation"); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } } static void gcal_event_widget_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { GcalEventWidget *self = GCAL_EVENT_WIDGET (object); switch (property_id) { case PROP_CONTEXT: g_value_set_object (value, self->context); break; case PROP_DATE_END: g_value_set_boxed (value, self->dt_end); break; case PROP_DATE_START: g_value_set_boxed (value, self->dt_start); break; case PROP_EVENT: g_value_set_object (value, self->event); break; case PROP_ORIENTATION: g_value_set_enum (value, self->orientation); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } } static void gcal_event_widget_dispose (GObject *object) { GcalEventWidget *self = GCAL_EVENT_WIDGET (object); g_clear_handle_id (&self->vertical_label_source_id, g_source_remove); g_clear_pointer (&self->stack, gtk_widget_unparent); G_OBJECT_CLASS (gcal_event_widget_parent_class)->dispose (object); } static void gcal_event_widget_finalize (GObject *object) { GcalEventWidget *self; self = GCAL_EVENT_WIDGET (object); /* disconnect signals */ g_signal_handlers_disconnect_by_func (self->event, update_color, self); g_signal_handlers_disconnect_by_func (self->event, gtk_widget_queue_draw, self); /* releasing properties */ g_clear_pointer (&self->css_class, g_free); g_clear_object (&self->event); g_clear_object (&self->context); G_OBJECT_CLASS (gcal_event_widget_parent_class)->finalize (object); } static void gcal_event_widget_class_init (GcalEventWidgetClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); object_class->set_property = gcal_event_widget_set_property; object_class->get_property = gcal_event_widget_get_property; object_class->dispose = gcal_event_widget_dispose; object_class->finalize = gcal_event_widget_finalize; widget_class->measure = gcal_event_widget_measure; widget_class->size_allocate = gcal_event_widget_size_allocate; /** * GcalEventWidget::context: * * The context of the event. */ g_object_class_install_property (object_class, PROP_CONTEXT, g_param_spec_object ("context", "Context", "Context", GCAL_TYPE_CONTEXT, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS)); /** * GcalEventWidget::date-end: * * The end date this widget represents. Notice that this may * differ from the event's end date. For example, if the event * spans more than one month and we're in Month View, the end * date marks the last day this event widget is visible. */ g_object_class_install_property (object_class, PROP_DATE_END, g_param_spec_boxed ("date-end", "End date", "The end date of the widget", G_TYPE_DATE_TIME, G_PARAM_READWRITE)); /** * GcalEventWidget::date-start: * * The start date this widget represents. Notice that this may * differ from the event's start date. For example, if the event * spans more than one month and we're in Month View, the start * date marks the first day this event widget is visible. */ g_object_class_install_property (object_class, PROP_DATE_START, g_param_spec_boxed ("date-start", "Start date", "The start date of the widget", G_TYPE_DATE_TIME, G_PARAM_READWRITE)); /** * GcalEventWidget::event: * * The event this widget represents. */ g_object_class_install_property (object_class, PROP_EVENT, g_param_spec_object ("event", "Event", "The event this widget represents", GCAL_TYPE_EVENT, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * GcalEventWidget::orientation: * * The orientation of the event widget. */ g_object_class_override_property (object_class, PROP_ORIENTATION, "orientation"); signals[ACTIVATE] = g_signal_new ("activate", GCAL_TYPE_EVENT_WIDGET, G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/calendar/ui/gui/gcal-event-widget.ui"); gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, color_box); gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, drag_source); gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, horizontal_box); gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, hour_label); gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, stack); gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, summary_label); gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, vertical_box); gtk_widget_class_bind_template_callback (widget_class, on_click_gesture_pressed_cb); gtk_widget_class_bind_template_callback (widget_class, on_click_gesture_release_cb); gtk_widget_class_bind_template_callback (widget_class, on_drag_source_begin_cb); gtk_widget_class_bind_template_callback (widget_class, on_drag_source_prepare_cb); gtk_widget_class_set_css_name (widget_class, "event"); } static void gcal_event_widget_init (GcalEventWidget *self) { GtkWidget *widget; widget = GTK_WIDGET (self); self->clock_format_24h = is_clock_format_24h (); gtk_widget_init_template (widget); gtk_widget_set_cursor_from_name (GTK_WIDGET (self), "pointer"); /* Starts with horizontal */ self->orientation = GTK_ORIENTATION_HORIZONTAL; gtk_style_context_add_class (gtk_widget_get_style_context (widget), "horizontal"); } GtkWidget* gcal_event_widget_new (GcalContext *context, GcalEvent *event) { return g_object_new (GCAL_TYPE_EVENT_WIDGET, "context", context, "event", event, NULL); } void gcal_event_widget_set_read_only (GcalEventWidget *event, gboolean read_only) { g_return_if_fail (GCAL_IS_EVENT_WIDGET (event)); gtk_event_controller_set_propagation_phase (event->drag_source, read_only ? GTK_PHASE_NONE : GTK_PHASE_BUBBLE); event->read_only = read_only; } /** * gcal_event_widget_get_date_end: * @self: a #GcalEventWidget * * Retrieves the visible end date of this widget. This * may differ from the event's end date. * * Returns: (transfer none): a #GDateTime */ GDateTime* gcal_event_widget_get_date_end (GcalEventWidget *self) { g_return_val_if_fail (GCAL_IS_EVENT_WIDGET (self), NULL); return self->dt_end ? self->dt_end : self->dt_start; } /** * gcal_event_widget_set_date_end: * @self: a #GcalEventWidget * @date_end: the end date of this widget * * Sets the visible end date of this widget. This * may differ from the event's end date, but cannot * be after it. */ void gcal_event_widget_set_date_end (GcalEventWidget *self, GDateTime *date_end) { g_return_if_fail (GCAL_IS_EVENT_WIDGET (self)); if (self->dt_end != date_end && (!self->dt_end || !date_end || (self->dt_end && date_end && !g_date_time_equal (self->dt_end, date_end)))) { /* The end date should never be after the event's end date */ if (date_end && g_date_time_compare (date_end, gcal_event_get_date_end (self->event)) > 0) return; g_clear_pointer (&self->dt_end, g_date_time_unref); self->dt_end = g_date_time_ref (date_end); gcal_event_widget_update_style (self); g_object_notify (G_OBJECT (self), "date-end"); } } /** * gcal_event_widget_get_date_start: * @self: a #GcalEventWidget * * Retrieves the visible start date of this widget. This * may differ from the event's start date. * * Returns: (transfer none): a #GDateTime */ GDateTime* gcal_event_widget_get_date_start (GcalEventWidget *self) { g_return_val_if_fail (GCAL_IS_EVENT_WIDGET (self), NULL); return self->dt_start; } /** * gcal_event_widget_set_date_start: * @self: a #GcalEventWidget * @date_end: the start date of this widget * * Sets the visible start date of this widget. This * may differ from the event's start date, but cannot * be before it. */ void gcal_event_widget_set_date_start (GcalEventWidget *self, GDateTime *date_start) { g_return_if_fail (GCAL_IS_EVENT_WIDGET (self)); if (self->dt_start != date_start && (!self->dt_start || !date_start || (self->dt_start && date_start && !g_date_time_equal (self->dt_start, date_start)))) { /* The start date should never be before the event's start date */ if (date_start && g_date_time_compare (date_start, gcal_event_get_date_start (self->event)) < 0) return; g_clear_pointer (&self->dt_start, g_date_time_unref); self->dt_start = g_date_time_ref (date_start); gcal_event_widget_update_style (self); g_object_notify (G_OBJECT (self), "date-start"); } } /** * gcal_event_widget_show_preview: * @self: a #GcalEventWidget * @callback: (nullable): callback for the event preview * @user_data: (nullable): user data for @callback * * Shows an event preview popover for this event widget, and * calls @callback when the popover is either dismissed, or * the edit button is clicked. */ void gcal_event_widget_show_preview (GcalEventWidget *self, GcalEventPreviewCallback callback, gpointer user_data) { PreviewData *data; GtkWidget *event_popover; GCAL_ENTRY; data = g_new0 (PreviewData, 1); data->event_widget = self; data->callback = callback; data->user_data = user_data; event_popover = gcal_event_popover_new (self->context, self->event); gtk_widget_set_parent (event_popover, GTK_WIDGET (self)); g_signal_connect (event_popover, "closed", G_CALLBACK (on_event_popover_closed_cb), data); g_signal_connect (event_popover, "edit", G_CALLBACK (on_event_popover_edit_cb), data); gtk_popover_popup (GTK_POPOVER (event_popover)); GCAL_EXIT; } /** * gcal_event_widget_get_event: * @self: a #GcalEventWidget * * Retrieves the @GcalEvent this widget represents. * * Returns: (transfer none): a #GcalEvent */ GcalEvent* gcal_event_widget_get_event (GcalEventWidget *self) { g_return_val_if_fail (GCAL_IS_EVENT_WIDGET (self), NULL); return self->event; } GtkWidget* gcal_event_widget_clone (GcalEventWidget *widget) { GtkWidget *new_widget; new_widget = gcal_event_widget_new (widget->context, widget->event); gcal_event_widget_set_read_only (GCAL_EVENT_WIDGET (new_widget), widget->read_only); return new_widget; } /** * gcal_event_widget_equal: * @widget1: an #GcalEventWidget representing an event * @widget2: an #GcalEventWidget representing an event * * Check if two widget represent the same event. * * Returns: %TRUE if both widget represent the same event, * false otherwise **/ gboolean gcal_event_widget_equal (GcalEventWidget *widget1, GcalEventWidget *widget2) { return g_strcmp0 (gcal_event_get_uid (widget1->event), gcal_event_get_uid (widget2->event)) == 0; } /** * gcal_event_widget_compare_by_length: * @widget1: * @widget2: * * Compare two widgets by the duration of the events they represent. From shortest to longest span. * * Returns: negative value if a < b ; zero if a = b ; positive value if a > b **/ gint gcal_event_widget_compare_by_length (GcalEventWidget *widget1, GcalEventWidget *widget2) { time_t time_s1, time_s2; time_t time_e1, time_e2; time_e1 = time_s1 = g_date_time_to_unix (widget1->dt_start); time_e2 = time_s2 = g_date_time_to_unix (widget2->dt_start); if (widget1->dt_end != NULL) time_e1 = g_date_time_to_unix (widget1->dt_end); if (widget2->dt_end) time_e2 = g_date_time_to_unix (widget2->dt_end); return (time_e2 - time_s2) - (time_e1 - time_s1); } gint gcal_event_widget_compare_by_start_date (GcalEventWidget *widget1, GcalEventWidget *widget2) { return g_date_time_compare (widget1->dt_start, widget2->dt_start); } gint gcal_event_widget_sort_events (GcalEventWidget *widget1, GcalEventWidget *widget2) { g_autoptr (GDateTime) dt_time1 = NULL; g_autoptr (GDateTime) dt_time2 = NULL; ICalTime *itt; gint diff; diff = gcal_event_is_multiday (widget2->event) - gcal_event_is_multiday (widget1->event); if (diff != 0) return diff; diff = gcal_event_widget_compare_by_start_date (widget1, widget2); if (diff != 0) return diff; diff = gcal_event_widget_compare_by_length (widget1, widget2); if (diff != 0) return diff; itt = e_cal_component_get_last_modified (gcal_event_get_component (widget1->event)); if (itt) dt_time1 = gcal_date_time_from_icaltime (itt); g_clear_object (&itt); itt = e_cal_component_get_last_modified (gcal_event_get_component (widget2->event)); if (itt) dt_time2 = gcal_date_time_from_icaltime (itt); g_clear_object (&itt); return dt_time1 && dt_time2 ? g_date_time_compare (dt_time2, dt_time1) : 0; }