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b84911deb586680a75790e53c21b73cea09d68dd
federated-calendar/src/gcal-event-widget.c
T
Georges Basile Stavracas Neto d66a76af88 event-widget: React to time changes 
When an event is timed, and we move past its end
date and time, the event does not react to that
and continues with the opacity of a regular event.

Fix that by reacting to minute changes.
2018-05-04 21:49:30 -03:00

1217 lines
35 KiB
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/* gcal-event-widget.c
*
* Copyright (C) 2015 Erick Pérez Castellanos <erickpc@gnome.org>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#define G_LOG_DOMAIN "GcalEventWidget"
#include <libecal/libecal.h>
#include <glib/gi18n.h>
#include <string.h>
#include "gcal-application.h"
#include "gcal-clock.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
struct _GcalEventWidget
{
GtkBin parent;
/* properties */
GDateTime *dt_start;
GDateTime *dt_end;
/* widgets */
GtkWidget *color_box;
GtkWidget *horizontal_grid;
GtkWidget *hour_label;
GtkWidget *stack;
GtkWidget *summary_label;
GtkWidget *vertical_grid;
/* internal data */
gboolean clock_format_24h : 1;
gboolean read_only : 1;
gchar *css_class;
GcalEvent *event;
GdkWindow *event_window;
GtkOrientation orientation;
guint vertical_label_source_id;
gboolean vertical_value_to_set;
gboolean vertical_labels;
gboolean button_pressed;
};
enum
{
PROP_0,
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_BIN,
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_get_preferred_height (self->vertical_grid, &total_height, 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_grid : self->horizontal_grid);
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
set_drag_source_enabled (GcalEventWidget *self,
gboolean enabled)
{
GtkWidget *widget = GTK_WIDGET (self);
if (enabled)
{
/* Setup the event widget as a drag source */
gtk_drag_source_set (widget,
GDK_BUTTON1_MASK,
NULL,
0,
GDK_ACTION_MOVE);
gtk_drag_source_add_text_targets (widget);
}
else
{
gtk_drag_source_unset (GTK_WIDGET (widget));
}
}
static void
gcal_event_widget_update_style (GcalEventWidget *self)
{
GtkStyleContext *context;
gboolean slanted_start;
gboolean slanted_end;
gboolean timed;
context = gtk_widget_get_style_context (GTK_WIDGET (self));
slanted_start = FALSE;
slanted_end = FALSE;
/* Clear previous style classes */
gtk_style_context_remove_class (context, "slanted");
gtk_style_context_remove_class (context, "slanted-start");
gtk_style_context_remove_class (context, "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_style_context_add_class (context, "slanted");
else if (slanted_start)
gtk_style_context_add_class (context, "slanted-start");
else if (slanted_end)
gtk_style_context_add_class (context, "slanted-end");
/* TODO: adjust margins based on the CSS gradients sizes, not hardcoded */
gtk_widget_set_margin_start (self->stack, slanted_start ? 20 : 4);
gtk_widget_set_margin_end (self->stack, slanted_end ? 20 : 4);
/* Add style classes for orientation selectors */
if (self->orientation == GTK_ORIENTATION_HORIZONTAL)
{
gtk_style_context_add_class (context, "horizontal");
gtk_style_context_remove_class (context, "vertical");
}
else
{
gtk_style_context_add_class (context, "vertical");
gtk_style_context_remove_class (context, "horizontal");
}
/*
* 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)
{
GtkStyleContext *context;
context = gtk_widget_get_style_context (GTK_WIDGET (self));
gtk_style_context_add_class (context, "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)
{
GtkStyleContext *context;
GdkRGBA *color;
GQuark color_id;
gchar *color_str;
gchar *css_class;
GDateTime *now;
gint date_compare;
context = gtk_widget_get_style_context (GTK_WIDGET (self));
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_style_context_remove_class (context, 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_style_context_add_class (context, css_class);
if (INTENSITY (color) > 0.5)
{
gtk_style_context_remove_class (context, "color-dark");
gtk_style_context_add_class (context, "color-light");
}
else
{
gtk_style_context_remove_class (context, "color-light");
gtk_style_context_add_class (context, "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, "<b>%s</b>", 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_swapped (event,
"notify::color",
G_CALLBACK (update_color),
self);
g_signal_connect_swapped (event,
"notify::summary",
G_CALLBACK (gtk_widget_queue_draw),
self);
/* 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);
}
/*
* GtkWidget overrides
*/
static gboolean
gcal_event_widget_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkStyleContext *context;
guint width, height;
context = gtk_widget_get_style_context (widget);
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
gtk_render_background (context, cr, 0, 0, width, height);
gtk_render_frame (context, cr, 0, 0, width, height);
return GTK_WIDGET_CLASS (gcal_event_widget_parent_class)->draw (widget, cr);
}
static gboolean
gcal_event_widget_button_press_event (GtkWidget *widget,
GdkEventButton *event)
{
GcalEventWidget *self;
self = GCAL_EVENT_WIDGET (widget);
self->button_pressed = TRUE;
return GDK_EVENT_STOP;
}
static gboolean
gcal_event_widget_button_release_event (GtkWidget *widget,
GdkEventButton *event)
{
GcalEventWidget *self;
self = GCAL_EVENT_WIDGET (widget);
if (self->button_pressed)
{
self->button_pressed = FALSE;
g_signal_emit (widget, signals[ACTIVATE], 0);
return GDK_EVENT_STOP;
}
return GDK_EVENT_PROPAGATE;
}
static void
gcal_event_widget_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GcalEventWidget *self;
GtkAllocation old_allocation;
self = GCAL_EVENT_WIDGET (widget);
gtk_widget_get_allocation (widget, &old_allocation);
if (gtk_widget_get_realized (widget))
{
gdk_window_move_resize (self->event_window,
allocation->x,
allocation->y,
allocation->width,
allocation->height);
}
GTK_WIDGET_CLASS (gcal_event_widget_parent_class)->size_allocate (widget, allocation);
/*
* Only after the child widgets (main grid, labels, etc) are allocated with the parent
* class' allocation function, we can check if the current height is enough to hold the
* vertical labels.
*/
if (old_allocation.width != allocation->width || old_allocation.height != allocation->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, allocation->height));
}
}
static cairo_surface_t*
get_dnd_icon (GtkWidget *widget)
{
cairo_surface_t *surface;
cairo_t *cr;
/* Make it transparent */
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
gtk_widget_get_allocated_width (widget),
gtk_widget_get_allocated_height (widget));
cr = cairo_create (surface);
gtk_widget_draw (widget, cr);
cairo_destroy (cr);
return surface;
}
static void
gcal_event_widget_drag_begin (GtkWidget *widget,
GdkDragContext *context)
{
GcalEventWidget *self;
cairo_surface_t *surface;
GdkWindow *window;
GdkDevice *device;
gint x, y;
GtkAllocation allocation;
self = GCAL_EVENT_WIDGET (widget);
window = gtk_widget_get_window (widget);
device = gdk_drag_context_get_device (context);
if (self->read_only)
{
gtk_drag_cancel (context);
return;
}
/* Setup the drag n' drop icon */
surface = get_dnd_icon (widget);
gtk_drag_set_icon_surface (context, surface);
/* reposition drag surface to the point the GCalEvent was */
gtk_widget_get_allocation (widget, &allocation);
gdk_window_get_device_position (window, device, &x, &y, NULL);
gdk_drag_context_set_hotspot (context, x - allocation.x, y - allocation.y);
g_clear_pointer (&surface, cairo_surface_destroy);
}
static void
gcal_event_widget_map (GtkWidget *widget)
{
GcalEventWidget *self;
self = GCAL_EVENT_WIDGET (widget);
GTK_WIDGET_CLASS (gcal_event_widget_parent_class)->map (widget);
if (self->event_window != NULL)
gdk_window_show (self->event_window);
}
static void
gcal_event_widget_realize (GtkWidget *widget)
{
GcalEventWidget *self;
GdkWindowAttr attributes;
GtkAllocation allocation;
GdkWindow *parent_window;
GdkCursor *pointer_cursor;
gint attributes_mask;
self = GCAL_EVENT_WIDGET (widget);
gtk_widget_set_realized (widget, TRUE);
parent_window = gtk_widget_get_parent_window (widget);
gtk_widget_set_window (widget, parent_window);
g_object_ref (parent_window);
gtk_widget_get_allocation (widget, &allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_ONLY;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_POINTER_MOTION_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_SMOOTH_SCROLL_MASK |
GDK_SCROLL_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y;
self->event_window = gdk_window_new (parent_window, &attributes, attributes_mask);
gtk_widget_register_window (widget, self->event_window);
gdk_window_show (self->event_window);
pointer_cursor = gdk_cursor_new_for_display (gdk_display_get_default (), GDK_HAND1);
gdk_window_set_cursor (self->event_window, pointer_cursor);
}
static gboolean
gcal_event_widget_scroll_event (GtkWidget *widget,
GdkEventScroll *scroll_event)
{
return GDK_EVENT_PROPAGATE;
}
static void
gcal_event_widget_unmap (GtkWidget *widget)
{
GcalEventWidget *self;
self = GCAL_EVENT_WIDGET (widget);
GTK_WIDGET_CLASS (gcal_event_widget_parent_class)->unmap (widget);
if (self->event_window)
gdk_window_hide (self->event_window);
}
static void
gcal_event_widget_unrealize (GtkWidget *widget)
{
GcalEventWidget *self;
self = GCAL_EVENT_WIDGET (widget);
if (self->event_window)
{
gtk_widget_unregister_window (widget, self->event_window);
gdk_window_destroy (self->event_window);
self->event_window = NULL;
}
GTK_WIDGET_CLASS (gcal_event_widget_parent_class)->unrealize (widget);
}
/*
* 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_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_grid, 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_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_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);
/* remove timeouts */
if (self->vertical_label_source_id > 0)
{
g_source_remove (self->vertical_label_source_id);
self->vertical_label_source_id = 0;
}
G_OBJECT_CLASS (gcal_event_widget_parent_class)->finalize (object);
}
static void
gcal_event_widget_class_init (GcalEventWidgetClass *klass)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = G_OBJECT_CLASS (klass);
object_class->set_property = gcal_event_widget_set_property;
object_class->get_property = gcal_event_widget_get_property;
object_class->finalize = gcal_event_widget_finalize;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->button_press_event = gcal_event_widget_button_press_event;
widget_class->button_release_event = gcal_event_widget_button_release_event;
widget_class->drag_begin = gcal_event_widget_drag_begin;
widget_class->draw = gcal_event_widget_draw;
widget_class->map = gcal_event_widget_map;
widget_class->realize = gcal_event_widget_realize;
widget_class->size_allocate = gcal_event_widget_size_allocate;
widget_class->scroll_event = gcal_event_widget_scroll_event;
widget_class->unmap = gcal_event_widget_unmap;
widget_class->unrealize = gcal_event_widget_unrealize;
/**
* 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/event-widget.ui");
gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, color_box);
gtk_widget_class_bind_template_child (widget_class, GcalEventWidget, horizontal_grid);
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_grid);
gtk_widget_class_set_css_name (widget_class, "event");
}
static void
gcal_event_widget_init (GcalEventWidget *self)
{
GcalApplication *application;
GtkWidget *widget;
widget = GTK_WIDGET (self);
self->clock_format_24h = is_clock_format_24h ();
gtk_widget_init_template (widget);
gtk_widget_set_can_focus (widget, TRUE);
gtk_widget_set_has_window (widget, FALSE);
/* Setup the event widget as a drag source */
set_drag_source_enabled (self, TRUE);
/* Starts with horizontal */
self->orientation = GTK_ORIENTATION_HORIZONTAL;
gtk_style_context_add_class (gtk_widget_get_style_context (widget), "horizontal");
/* Connect to the wall clock */
application = GCAL_APPLICATION (g_application_get_default ());
g_assert (application != NULL);
g_signal_connect_object (gcal_application_get_clock (application),
"minute-changed",
G_CALLBACK (update_color),
self,
G_CONNECT_SWAPPED);
}
GtkWidget*
gcal_event_widget_new (GcalEvent *event)
{
return g_object_new (GCAL_TYPE_EVENT_WIDGET,
"event", event,
NULL);
}
void
gcal_event_widget_set_read_only (GcalEventWidget *event,
gboolean read_only)
{
g_return_if_fail (GCAL_IS_EVENT_WIDGET (event));
set_drag_source_enabled (event, !read_only);
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_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->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)
{
if (!e_source_equal (gcal_event_get_source (widget1->event), gcal_event_get_source (widget2->event)))
return FALSE;
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;
icaltimetype *ical_dt;
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;
e_cal_component_get_last_modified (gcal_event_get_component (widget1->event), &ical_dt);
if (ical_dt)
dt_time1 = icaltime_to_datetime (ical_dt);
e_cal_component_get_last_modified (gcal_event_get_component (widget2->event), &ical_dt);
if (ical_dt)
dt_time2 = icaltime_to_datetime (ical_dt);
return dt_time1 && dt_time2 ? g_date_time_compare (dt_time2, dt_time1) : 0;
}
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