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bb2566dab80d150cd78275ca402af20f688bceed
federated-calendar/src/views/gcal-month-view.c
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Georges Basile Stavracas Neto bb2566dab8 month-view: hide last row if it's empty 
This can make it put up to 5 events in my 1366x768 screen!

\o/
2017-11-19 12:29:29 -02:00

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/* gcal-month-view.c
*
* Copyright © 2015 Erick Pérez Castellanos
* 2017 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define G_LOG_DOMAIN "GcalMonthView"
#include "e-cal-data-model-subscriber.h"
#include "gcal-debug.h"
#include "gcal-month-cell.h"
#include "gcal-month-popover.h"
#include "gcal-month-view.h"
#include "gcal-utils.h"
#include "gcal-view.h"
#include <glib/gi18n.h>
#include <math.h>
#define LINE_WIDTH 0.5
typedef struct
{
GtkWidget *event_widget;
gboolean visible;
guint8 length;
guint8 height;
guint8 cell;
} GcalEventBlock;
struct _GcalMonthView
{
GtkContainer parent;
GcalMonthPopover *overflow_popover;
GdkWindow *event_window;
/* Header widgets */
GtkWidget *header;
GtkWidget *label_0;
GtkWidget *label_1;
GtkWidget *label_2;
GtkWidget *label_3;
GtkWidget *label_4;
GtkWidget *label_5;
GtkWidget *label_6;
GtkWidget *month_label;
GtkWidget *year_label;
GtkWidget *weekday_label[7];
/* Grid widgets */
GtkWidget *grid;
GtkWidget *month_cell[6][7];
/*
* Hash to keep children widgets (all of them, parent widgets and its parts if there's any),
* uuid as key and a list of all the instances of the event as value. Here, the first widget
* on the list is the master, and the rest are the parts. Note: the master is a part itself.
*/
GHashTable *children;
/*
* Hash containig single-cell events, day of the month, on month-view, month of the year on
* year-view as key anda list of the events that belongs to this cell
*/
GHashTable *single_cell_children;
/*
* A sorted list containig multiday events. This one contains only parents events, to find out
* its parts @children will be used.
*/
GList *multi_cell_children;
/*
* Hash containing cells that who has overflow per list of hidden widgets.
*/
GHashTable *overflow_cells;
/*
* the cell on which its drawn the first day of the month, in the first row, 0 for the first
* cell, 1 for the second, and so on, this takes first_weekday into account already.
*/
gint days_delay;
/*
* The cell whose keyboard focus is on.
*/
gint keyboard_cell;
/*
* first day of the week according to user locale, being
* 0 for Sunday, 1 for Monday and so on */
gint first_weekday;
/*
* The start & end dates of the selection. We use datetimes to allow the user to navigate between
* months using the keyboard.
*/
GDateTime *start_mark_cell;
GDateTime *end_mark_cell;
/*
* clock format from GNOME desktop settings
*/
gboolean use_24h_format;
/* Storage for the accumulated scrolling */
gdouble scroll_value;
guint update_grid_id;
/* property */
icaltimetype *date;
GcalManager *manager;
gboolean pending_event_allocation;
};
static void gcal_view_interface_init (GcalViewInterface *iface);
static void gtk_buildable_interface_init (GtkBuildableIface *iface);
static void e_data_model_subscriber_interface_init (ECalDataModelSubscriberInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GcalMonthView, gcal_month_view, GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GCAL_TYPE_VIEW, gcal_view_interface_init)
G_IMPLEMENT_INTERFACE (E_TYPE_CAL_DATA_MODEL_SUBSCRIBER,
e_data_model_subscriber_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_buildable_interface_init));
enum
{
PROP_0,
PROP_DATE,
PROP_MANAGER,
N_PROPS
};
enum
{
EVENT_ACTIVATED,
NUM_SIGNALS
};
static guint signals[NUM_SIGNALS] = { 0, };
/*
* Auxiliary functions
*/
static inline void
cancel_selection (GcalMonthView *self)
{
g_clear_pointer (&self->start_mark_cell, g_date_time_unref);
g_clear_pointer (&self->end_mark_cell, g_date_time_unref);
}
static void
event_activated (GcalMonthView *self,
GcalEventWidget *widget,
gpointer unused)
{
cancel_selection (self);
gcal_month_popover_popdown (self->overflow_popover);
g_signal_emit (self, signals[EVENT_ACTIVATED], 0, widget);
}
static void
event_widget_visibility_changed_cb (GcalMonthView *self)
{
self->pending_event_allocation = TRUE;
gtk_widget_queue_resize (GTK_WIDGET (self));
}
static void
setup_child_widget (GcalMonthView *self,
GtkWidget *widget)
{
if (!gtk_widget_get_parent (widget))
gtk_widget_set_parent (widget, GTK_WIDGET (self));
g_signal_connect_swapped (widget, "activate", G_CALLBACK (event_activated), self);
g_signal_connect_swapped (widget, "notify::visible", G_CALLBACK (event_widget_visibility_changed_cb), self);
}
static gboolean
emit_create_event (GcalMonthView *self)
{
GtkAllocation alloc;
GDateTime *end_dt,*start_dt;
gboolean should_clear_end;
gdouble x, y;
gint cell;
GCAL_ENTRY;
if (!self->start_mark_cell || !self->end_mark_cell)
GCAL_RETURN (FALSE);
should_clear_end = FALSE;
start_dt = self->start_mark_cell;
end_dt = self->end_mark_cell;
/* Swap dates if start > end */
if (g_date_time_compare (start_dt, end_dt) > 0)
{
GDateTime *aux;
aux = start_dt;
start_dt = end_dt;
end_dt = aux;
}
/* Only setup an end date when days are different */
if (!g_date_time_equal (start_dt, end_dt))
{
GDateTime *tmp_dt;
tmp_dt = g_date_time_new_local (g_date_time_get_year (end_dt),
g_date_time_get_month (end_dt),
g_date_time_get_day_of_month (end_dt),
0, 0, 0);
end_dt = g_date_time_add_days (tmp_dt, 1);
should_clear_end = TRUE;
g_clear_pointer (&tmp_dt, g_date_time_unref);
}
/* Get the corresponding GcalMonthCell */
cell = g_date_time_get_day_of_month (self->end_mark_cell) + self->days_delay - 1;
gtk_widget_get_allocation (self->month_cell[cell / 7][cell % 7], &alloc);
x = alloc.x + alloc.width / 2.0;
y = alloc.y + alloc.height / 2.0;
g_signal_emit_by_name (self, "create-event", start_dt, end_dt, x, y);
if (should_clear_end)
g_clear_pointer (&end_dt, g_date_time_unref);
GCAL_RETURN (TRUE);
}
static GtkWidget*
get_month_cell_at_position (GcalMonthView *self,
gdouble x,
gdouble y,
gint *cell)
{
gint i;
if (y < gtk_widget_get_allocated_height (self->header))
return NULL;
for (i = 0; i < 42; i++)
{
GtkAllocation alloc;
guint row, col;
row = i / 7;
col = i % 7;
gtk_widget_get_allocation (self->month_cell[row][col], &alloc);
if (x >= alloc.x && x < alloc.x + alloc.width &&
y >= alloc.y && y < alloc.y + alloc.height)
{
if (cell)
*cell = i;
return self->month_cell[row][col];
}
}
if (cell)
*cell = -1;
return NULL;
}
static void
calculate_event_cells (GcalMonthView *self,
GcalEvent *event,
gint *out_first_cell,
gint *out_last_cell)
{
gboolean all_day;
all_day = gcal_event_get_all_day (event);
/* Start date */
if (out_first_cell)
{
g_autoptr (GDateTime) start_date = NULL;
gint first_cell;
first_cell = 1;
start_date = gcal_event_get_date_start (event);
start_date = all_day ? g_date_time_ref (start_date) : g_date_time_to_local (start_date);
if (g_date_time_get_year (start_date) == self->date->year &&
g_date_time_get_month (start_date) == self->date->month)
{
first_cell = g_date_time_get_day_of_month (start_date);
}
first_cell += self->days_delay - 1;
*out_first_cell = first_cell;
}
/*
* The logic for the end date is the same, except that we have to check
* if the event is all day or not.
*/
if (out_last_cell)
{
g_autoptr (GDateTime) end_date = NULL;
gint last_cell;
last_cell = icaltime_days_in_month (self->date->month, self->date->year);
end_date = gcal_event_get_date_end (event);
end_date = all_day ? g_date_time_ref (end_date) : g_date_time_to_local (end_date);
if (g_date_time_get_year (end_date) == self->date->year &&
g_date_time_get_month (end_date) == self->date->month)
{
last_cell = g_date_time_get_day_of_month (end_date);
/* If the event is all day, we have to subtract 1 to find the the real date */
if (all_day)
last_cell--;
}
last_cell += self->days_delay - 1;
*out_last_cell = last_cell;
}
}
static GPtrArray*
calculate_multiday_event_blocks (GcalMonthView *self,
GtkWidget *event_widget,
gdouble *vertical_cell_space,
gdouble *size_left,
gint *events_at_day,
gint *allocated_events_at_day)
{
GcalEventBlock *block;
GcalEvent *event;
GPtrArray *blocks;
gboolean was_visible;
gdouble old_y;
gdouble y;
gint current_part_length;
gint first_cell;
gint last_cell;
gint i;
GCAL_ENTRY;
old_y = -1.0;
current_part_length = 0;
was_visible = FALSE;
/* Get the event cells */
event = gcal_event_widget_get_event (GCAL_EVENT_WIDGET (event_widget));
calculate_event_cells (self, event, &first_cell, &last_cell);
blocks = g_ptr_array_new_full (last_cell - first_cell + 1, g_free);
block = NULL;
GCAL_TRACE_MSG ("Positioning '%s' (multiday) from %d to %d", gcal_event_get_summary (event), first_cell, last_cell);
for (i = first_cell; i <= last_cell; i++)
{
GtkStyleContext *context;
GtkBorder margin;
gboolean visible_at_range;
gboolean different_row;
gboolean will_overflow;
gdouble real_height;
gint remaining_events;
gint minimum_height;
real_height = size_left[i];
/* Calculate the minimum event height */
context = gtk_widget_get_style_context (GTK_WIDGET (event_widget));
gtk_style_context_get_margin (context, gtk_style_context_get_state (context), &margin);
gtk_widget_get_preferred_height (GTK_WIDGET (event_widget), &minimum_height, NULL);
minimum_height += margin.top + margin.bottom;
/* Count this event at this cell */
different_row = i / 7 != (i - 1) / 7;
remaining_events = events_at_day[i] - allocated_events_at_day[i];
will_overflow = remaining_events * minimum_height > real_height;
if (will_overflow)
real_height -= gcal_month_cell_get_overflow_height (GCAL_MONTH_CELL (self->month_cell[i / 7][i % 7]));
visible_at_range = real_height >= minimum_height;
if (visible_at_range)
allocated_events_at_day[i]++;
y = vertical_cell_space[i] - size_left[i];
/* At the first iteration, make was_visible and visible_at_range equal */
if (i == first_cell)
was_visible = visible_at_range;
if (!block || y != old_y || different_row || was_visible != visible_at_range)
{
GCAL_TRACE_MSG ("Breaking event at cell %d (previous section was %d)", i, i - current_part_length);
/* Only create a new event widget after the first one is consumed */
if (block)
{
GcalEvent *event;
GList *aux;
GCAL_TRACE_MSG ("Cloning event widget");
event = gcal_event_widget_get_event (GCAL_EVENT_WIDGET (event_widget));
event_widget = gcal_event_widget_clone (GCAL_EVENT_WIDGET (event_widget));
gtk_widget_show (event_widget);
setup_child_widget (self, event_widget);
aux = g_hash_table_lookup (self->children, gcal_event_get_uid (event));
aux = g_list_append (aux, event_widget);
}
current_part_length = 1;
old_y = y;
/* Add a new block */
block = g_new (GcalEventBlock, 1);
block->event_widget = event_widget;
block->visible = visible_at_range;
block->height = minimum_height;
block->length = 1;
block->cell = i;
g_ptr_array_add (blocks, block);
}
else
{
block->length++;
}
was_visible = visible_at_range;
}
GCAL_RETURN (blocks);
}
static void
cleanup_overflow_information (GcalMonthView *self)
{
g_autoptr (GList) widgets = NULL;
GList *aux = NULL;
GList *l = NULL;
/* Remove every widget' parts, but the master widget */
widgets = g_hash_table_get_values (self->children);
for (aux = widgets; aux; aux = g_list_next (aux))
l = g_list_concat (l, g_list_copy (g_list_next (aux->data)));
g_list_free_full (l, (GDestroyNotify) gtk_widget_destroy);
/* Clean overflow information */
g_hash_table_remove_all (self->overflow_cells);
}
static void
remove_cell_border_and_padding (GtkWidget *cell,
gdouble *x,
gdouble *y,
gdouble *width)
{
GtkStyleContext *cell_context;
GtkBorder cell_padding;
GtkBorder cell_border;
gint header_height;
cell_context = gtk_widget_get_style_context (cell);
gtk_style_context_get_border (cell_context, gtk_style_context_get_state (cell_context), &cell_border);
gtk_style_context_get_padding (cell_context, gtk_style_context_get_state (cell_context), &cell_padding);
header_height = gcal_month_cell_get_header_height (GCAL_MONTH_CELL (cell));
if (x)
*x += cell_border.left + cell_padding.left;
if (y)
*y += cell_border.top + cell_padding.top + header_height;
if (width)
{
*width -= cell_border.left + cell_border.right;
*width -= cell_padding.left + cell_padding.right;
}
}
static void
count_events_per_day (GcalMonthView *self,
gint *events_per_day)
{
GHashTableIter iter;
gpointer key;
GList *children;
GList *l;
/* Multiday events */
for (l = self->multi_cell_children; l; l = l->next)
{
GcalEvent *event;
gint first_cell;
gint last_cell;
gint i;
if (!gtk_widget_get_visible (l->data))
continue;
event = gcal_event_widget_get_event (l->data);
calculate_event_cells (self, event, &first_cell, &last_cell);
for (i = first_cell; i <= last_cell; i++)
events_per_day[i]++;
}
/* Single day events */
g_hash_table_iter_init (&iter, self->single_cell_children);
while (g_hash_table_iter_next (&iter, &key, (gpointer*) &children))
{
gint cell;
cell = GPOINTER_TO_INT (key) + self->days_delay - 1;
for (l = children; l; l = l->next)
{
if (!gtk_widget_get_visible (l->data))
continue;
events_per_day[cell]++;
}
}
}
static gdouble
get_real_event_widget_height (GtkWidget *widget)
{
gint min_height;
gtk_widget_get_preferred_height (widget, &min_height, NULL);
min_height += gtk_widget_get_margin_top (widget);
min_height += gtk_widget_get_margin_bottom (widget);
return min_height;
}
static void
allocate_multiday_events (GcalMonthView *self,
gdouble *vertical_cell_space,
gdouble *size_left,
gint *events_at_day,
gint *allocated_events_at_day)
{
GtkAllocation event_allocation;
GtkAllocation cell_allocation;
GtkBorder margin;
GList *l;
gboolean is_rtl;
is_rtl = gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_RTL;
for (l = self->multi_cell_children; l; l = g_list_next (l))
{
g_autoptr (GPtrArray) blocks = NULL;
GtkStyleContext *child_context;
GtkWidget *child_widget;
GcalEvent *event;
gint block_idx;
child_widget = (GtkWidget*) l->data;
if (!gtk_widget_get_visible (child_widget))
continue;
event = gcal_event_widget_get_event (l->data);
child_context = gtk_widget_get_style_context (l->data);
/*
* Multiday events can "break" following these rules:
*
* - Break when line changed
* - Break when the vertical position in the cells changed
* - Break when the previous part's visibility is different than the current
*/
blocks = calculate_multiday_event_blocks (self,
child_widget,
vertical_cell_space,
size_left,
events_at_day,
allocated_events_at_day);
for (block_idx = 0; block_idx < blocks->len; block_idx++)
{
g_autoptr (GDateTime) dt_start = NULL;
g_autoptr (GDateTime) dt_end = NULL;
GcalEventBlock *block;
GtkWidget *month_cell;
GList *aux;
gdouble pos_x;
gdouble pos_y;
gdouble width;
gint last_block_cell;
gint minimum_height;
gint length;
gint cell;
gint day;
gint j;
block = g_ptr_array_index (blocks, block_idx);
length = block->length;
cell = block->cell;
last_block_cell = cell + length - 1;
day = cell - self->days_delay + 1;
child_widget = block->event_widget;
child_context = gtk_widget_get_style_context (child_widget);
/* No space left, add to the overflow and continue */
if (!block->visible)
{
gint idx;
gtk_widget_set_child_visible (child_widget, FALSE);
for (idx = cell; idx < cell + length; idx++)
{
aux = g_hash_table_lookup (self->overflow_cells, GINT_TO_POINTER (idx));
aux = g_list_append (aux, child_widget);
if (g_list_length (aux) == 1)
g_hash_table_insert (self->overflow_cells, GINT_TO_POINTER (idx), aux);
else
g_hash_table_replace (self->overflow_cells, GINT_TO_POINTER (idx), g_list_copy (aux));
}
continue;
}
/*
* Retrieve the cell widget. On RTL languages, we use the last month cell as the starting
* point.
*/
if (is_rtl)
month_cell = self->month_cell[last_block_cell / 7][last_block_cell % 7];
else
month_cell = self->month_cell[cell / 7][cell % 7];
gtk_widget_get_allocation (month_cell, &cell_allocation);
gtk_widget_set_child_visible (child_widget, TRUE);
/*
* Setup the widget's start date as the first day of the row,
* and the widget's end date as the last day of the row. We don't
* have to worry about the dates, since GcalEventWidget performs
* some checks and only applies the dates when it's valid.
*/
dt_start = g_date_time_new (gcal_event_get_timezone (event),
self->date->year,
self->date->month,
day,
0, 0, 0);
dt_end = g_date_time_add_days (dt_start, length);
gcal_event_widget_set_date_start (GCAL_EVENT_WIDGET (child_widget), dt_start);
gcal_event_widget_set_date_end (GCAL_EVENT_WIDGET (child_widget), dt_end);
/* Position and allocate the child widget */
gtk_style_context_get_margin (gtk_widget_get_style_context (child_widget),
gtk_style_context_get_state (child_context),
&margin);
pos_x = cell_allocation.x + margin.left;
pos_y = cell_allocation.y + margin.top;
width = cell_allocation.width * length;
remove_cell_border_and_padding (month_cell, &pos_x, &pos_y, &width);
/*
* We can only get the minimum height after making all these calculations,
* otherwise GTK complains about allocating without calling get_preferred_height.
*/
minimum_height = get_real_event_widget_height (child_widget);
event_allocation.x = pos_x;
event_allocation.y = pos_y + vertical_cell_space[cell] - size_left[cell];
event_allocation.width = width - (margin.left + margin.right);
event_allocation.height = minimum_height;
gtk_widget_size_allocate (child_widget, &event_allocation);
/* update size_left */
for (j = 0; j < length; j++)
{
size_left[cell + j] -= minimum_height;
size_left[cell + j] -= margin.top + margin.bottom;
}
}
}
}
static void
allocate_single_day_events (GcalMonthView *self,
gdouble *vertical_cell_space,
gdouble *size_left,
gint *events_at_day,
gint *allocated_events_at_day)
{
GHashTableIter iter;
GtkAllocation event_allocation;
GtkAllocation cell_allocation;
GtkBorder margin;
gpointer key, value;
g_hash_table_iter_init (&iter, self->single_cell_children);
while (g_hash_table_iter_next (&iter, &key, &value))
{
GtkWidget *month_cell;
GList *aux;
GList *l;
gboolean will_overflow;
gint cell;
gint day;
day = GPOINTER_TO_INT (key);
cell = day + self->days_delay - 1;
month_cell = self->month_cell[cell / 7][cell % 7];
gtk_widget_get_allocation (month_cell, &cell_allocation);
l = (GList*) value;
for (aux = l; aux; aux = g_list_next (aux))
{
GtkStyleContext *child_context;
GtkWidget *child_widget;
gdouble real_height;
gdouble pos_y;
gdouble pos_x;
gdouble width;
gint remaining_events;
gint minimum_height;
child_widget = aux->data;
if (!gtk_widget_get_visible (child_widget))
continue;
child_context = gtk_widget_get_style_context (child_widget);
gtk_style_context_get_margin (child_context, gtk_style_context_get_state (child_context), &margin);
minimum_height = get_real_event_widget_height (child_widget) + margin.top + margin.bottom;
/* Check for overflow */
remaining_events = events_at_day[cell] - allocated_events_at_day[cell];
will_overflow = remaining_events * minimum_height >= size_left[cell];
real_height = size_left[cell];
if (will_overflow)
real_height -= gcal_month_cell_get_overflow_height (GCAL_MONTH_CELL (month_cell));
/* No space left, add to the overflow and continue */
if (real_height < minimum_height)
{
gtk_widget_set_child_visible (child_widget, FALSE);
l = g_hash_table_lookup (self->overflow_cells, GINT_TO_POINTER (cell));
l = g_list_append (l, child_widget);
if (g_list_length (l) == 1)
g_hash_table_insert (self->overflow_cells, GINT_TO_POINTER (cell), l);
else
g_hash_table_replace (self->overflow_cells, GINT_TO_POINTER (cell), g_list_copy (l));
continue;
}
allocated_events_at_day[cell]++;
gtk_widget_set_child_visible (child_widget, TRUE);
pos_x = cell_allocation.x + margin.left;
pos_y = cell_allocation.y + margin.top;
width = cell_allocation.width;
remove_cell_border_and_padding (month_cell, &pos_x, &pos_y, &width);
event_allocation.x = pos_x;
event_allocation.y = pos_y + vertical_cell_space[cell] - size_left[cell];
event_allocation.width = width - (margin.left + margin.right);
event_allocation.height = minimum_height;
gtk_widget_set_child_visible (child_widget, TRUE);
gtk_widget_size_allocate (child_widget, &event_allocation);
size_left[cell] -= minimum_height + margin.top + margin.bottom;
}
}
}
static void
show_overflow_popover_cb (GcalMonthCell *cell,
GtkWidget *button,
GcalMonthView *self)
{
GcalMonthPopover *popover;
popover = GCAL_MONTH_POPOVER (self->overflow_popover);
cancel_selection (self);
gcal_month_popover_set_relative_to (popover, GTK_WIDGET (cell));
gcal_month_popover_set_date (popover, gcal_month_cell_get_date (cell));
gcal_month_popover_popup (popover);
}
static void
setup_header_widget (GcalMonthView *self,
GtkWidget *widget)
{
self->header = widget;
gtk_widget_set_parent (widget, GTK_WIDGET (self));
}
static void
setup_month_grid (GcalMonthView *self,
GtkWidget *widget)
{
guint row, col;
self->grid = widget;
gtk_widget_set_parent (widget, GTK_WIDGET (self));
for (row = 0; row < 6; row++)
{
for (col = 0; col < 7; col++)
{
GtkWidget *cell;
cell = gcal_month_cell_new ();
g_signal_connect (cell,
"show-overflow",
G_CALLBACK (show_overflow_popover_cb),
self);
self->month_cell[row][col] = cell;
gtk_grid_attach (GTK_GRID (widget), cell, col, row, 1, 1);
}
}
}
static gboolean
update_month_cells (GcalMonthView *self)
{
g_autoptr (GDateTime) dt;
gboolean show_last_row;
guint row, col;
show_last_row = g_date_get_days_in_month (self->date->month, self->date->year) + self->days_delay > 35;
dt = g_date_time_new_local (self->date->year, self->date->month, 1, 0, 0, 0);
for (row = 0; row < 6; row++)
{
for (col = 0; col < 7; col++)
{
g_autoptr (GDateTime) cell_date = NULL;
GcalMonthCell *cell;
GDateTime *selection_start;
GDateTime *selection_end;
GList *l;
gboolean different_month;
gboolean selected;
guint day;
cell = GCAL_MONTH_CELL (self->month_cell[row][col]);
day = row * 7 + col;
selected = FALSE;
l = NULL;
/* Cell date */
cell_date = g_date_time_add_days (dt, row * 7 + col - self->days_delay);
gcal_month_cell_set_date (cell, cell_date);
/* Different month */
different_month = day < self->days_delay ||
day - self->days_delay >= icaltime_days_in_month (self->date->month, self->date->year);
gcal_month_cell_set_different_month (cell, different_month);
/* If the last row is empty, hide it */
gtk_widget_set_visible (GTK_WIDGET (cell), show_last_row || row < 5);
if (different_month)
{
gcal_month_cell_set_selected (cell, FALSE);
gcal_month_cell_set_overflow (cell, 0);
continue;
}
/* Overflow */
if (g_hash_table_contains (self->overflow_cells, GINT_TO_POINTER (day)))
l = g_hash_table_lookup (self->overflow_cells, GINT_TO_POINTER (day));
gcal_month_cell_set_overflow (cell, l ? g_list_length (l) : 0);
/* Selection */
selection_start = self->start_mark_cell;
selection_end = self->end_mark_cell;
if (selection_start)
{
if (!selection_end)
selection_end = selection_start;
/* Swap dates if end is before start */
if (datetime_compare_date (selection_end, selection_start) < 0)
{
GDateTime *aux = selection_end;
selection_end = selection_start;
selection_start = aux;
}
selected = datetime_compare_date (gcal_month_cell_get_date (cell), selection_start) >= 0 &&
datetime_compare_date (gcal_month_cell_get_date (cell), selection_end) <= 0;
}
gcal_month_cell_set_selected (cell, selected);
}
}
self->update_grid_id = 0;
return G_SOURCE_REMOVE;
}
static void
queue_update_month_cells (GcalMonthView *self)
{
if (self->update_grid_id > 0)
g_source_remove (self->update_grid_id);
self->update_grid_id = g_idle_add ((GSourceFunc) update_month_cells, self);
}
static void
update_header_labels (GcalMonthView *self)
{
gchar year_str[10] = { 0, };
g_snprintf (year_str, 10, "%d", self->date->year);
gtk_label_set_label (GTK_LABEL (self->month_label), gcal_get_month_name (self->date->month - 1));
gtk_label_set_label (GTK_LABEL (self->year_label), year_str);
}
static inline void
update_weekday_labels (GcalMonthView *self)
{
gint i;
for (i = 0; i < 7; i++)
{
g_autofree gchar *weekday_name;
weekday_name = g_utf8_strup (gcal_get_weekday ((i + self->first_weekday) % 7), -1);
gtk_label_set_label (GTK_LABEL (self->weekday_label[i]), weekday_name);
}
}
/*
* GtkWidget overrides
*/
static gboolean
gcal_month_view_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GcalMonthView *self;
gboolean create_event;
gboolean selection;
gboolean valid_key;
gboolean is_ltr;
gint min, max, diff, month_change, current_day;
gint row, col;
g_return_val_if_fail (GCAL_IS_MONTH_VIEW (widget), FALSE);
self = GCAL_MONTH_VIEW (widget);
selection = event->state & GDK_SHIFT_MASK;
create_event = FALSE;
valid_key = FALSE;
diff = 0;
month_change = 0;
current_day = self->keyboard_cell - self->days_delay + 1;
min = self->days_delay;
max = self->days_delay + icaltime_days_in_month (self->date->month, self->date->year) - 1;
is_ltr = gtk_widget_get_direction (widget) != GTK_TEXT_DIR_RTL;
/*
* If it's starting the selection right now, it should mark the current keyboard
* focused cell as the start, and then update the end mark after updating the
* focused cell.
*/
if (selection && self->start_mark_cell == NULL)
self->start_mark_cell = g_date_time_new_local (self->date->year, self->date->month, current_day, 0, 0, 0);
switch (event->keyval)
{
case GDK_KEY_Up:
valid_key = TRUE;
diff = -7;
break;
case GDK_KEY_Down:
valid_key = TRUE;
diff = 7;
break;
case GDK_KEY_Left:
valid_key = TRUE;
diff = is_ltr ? -1 : 1;
break;
case GDK_KEY_Right:
valid_key = TRUE;
diff = is_ltr ? 1 : -1;
break;
case GDK_KEY_Return:
/*
* If it's not on the selection mode (i.e. shift is not pressed), we should
* simulate it by changing the start & end selected cells = keyboard cell.
*/
if (!selection && !self->start_mark_cell && !self->end_mark_cell)
self->start_mark_cell = self->end_mark_cell = g_date_time_new_local (self->date->year, self->date->month, current_day, 0, 0, 0);
create_event = TRUE;
break;
case GDK_KEY_Escape:
cancel_selection (GCAL_MONTH_VIEW (widget));
break;
default:
return GDK_EVENT_PROPAGATE;
}
if (self->keyboard_cell + diff <= max && self->keyboard_cell + diff >= min)
{
self->keyboard_cell += diff;
}
else
{
month_change = self->keyboard_cell + diff > max ? 1 : -1;
self->date->month += month_change;
*(self->date) = icaltime_normalize(*(self->date));
self->days_delay = (time_day_of_week (1, self->date->month - 1, self->date->year) - self->first_weekday + 7) % 7;
/*
* Set keyboard cell value to the sum or difference of days delay of successive
* month or last day of preceeding month and overload value depending on
* month_change. Overload value is the equal to the deviation of the value
* of keboard_cell from the min or max value of the current month depending
* on the overload point.
*/
if (month_change == 1)
self->keyboard_cell = self->days_delay + self->keyboard_cell + diff - max - 1;
else
self->keyboard_cell = self->days_delay + icaltime_days_in_month (self->date->month, self->date->year) - min + self->keyboard_cell + diff;
}
/* Focus the selected month cell */
row = self->keyboard_cell / 7;
col = self->keyboard_cell % 7;
gtk_widget_grab_focus (self->month_cell[row][col]);
current_day = self->keyboard_cell - self->days_delay + 1;
self->date->day = current_day;
/*
* We can only emit the :create-event signal ~after~ grabbing the focus, otherwise
* the popover is instantly hidden.
*/
if (create_event)
emit_create_event (self);
g_object_notify (G_OBJECT (widget), "active-date");
if (selection)
{
self->end_mark_cell = g_date_time_new_local (self->date->year, self->date->month, current_day, 0, 0, 0);
}
else if (!selection && valid_key)
{
/* Cancel selection if SHIFT is not pressed */
cancel_selection (GCAL_MONTH_VIEW (widget));
}
return GDK_EVENT_STOP;
}
static gboolean
gcal_month_view_scroll_event (GtkWidget *widget,
GdkEventScroll *scroll_event)
{
GcalMonthView *self = GCAL_MONTH_VIEW (widget);
/*
* If we accumulated enough scrolling, change the month. Otherwise, we'd scroll
* waaay too fast.
*/
if (should_change_date_for_scroll (&self->scroll_value, scroll_event))
{
self->date->month += self->scroll_value > 0 ? 1 : -1;
*self->date = icaltime_normalize (*self->date);
self->scroll_value = 0;
gtk_widget_queue_draw (widget);
g_object_notify (G_OBJECT (widget), "active-date");
}
return GDK_EVENT_STOP;
}
static void
add_new_event_button_cb (GtkWidget *button,
gpointer user_data)
{
GcalMonthView *self;
GDateTime *start_date;
gint day;
self = GCAL_MONTH_VIEW (user_data);
gcal_month_popover_popdown (self->overflow_popover);
day = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (self->overflow_popover), "selected-day"));
start_date = g_date_time_new_local (self->date->year, self->date->month, day, 0, 0, 0);
g_signal_emit_by_name (GCAL_VIEW (user_data), "create-event-detailed", start_date, NULL);
g_date_time_unref (start_date);
}
/* GcalView Interface API */
static icaltimetype*
gcal_month_view_get_date (GcalView *view)
{
GcalMonthView *self = GCAL_MONTH_VIEW (view);
return self->date;
}
static void
gcal_month_view_set_date (GcalView *view,
icaltimetype *date)
{
GcalMonthView *self;
GCAL_ENTRY;
self = GCAL_MONTH_VIEW (view);
g_clear_pointer (&self->date, g_free);
self->date = gcal_dup_icaltime (date);
self->days_delay = (time_day_of_week (1, self->date->month - 1, self->date->year) - self->first_weekday + 7) % 7;
self->keyboard_cell = self->days_delay + (self->date->day - 1);
GCAL_TRACE_MSG ("new date: %s", icaltime_as_ical_string (*date));
update_header_labels (self);
update_month_cells (self);
GCAL_EXIT;
}
static void
gcal_month_view_clear_marks (GcalView *view)
{
cancel_selection (GCAL_MONTH_VIEW (view));
update_month_cells (GCAL_MONTH_VIEW (view));
gtk_widget_queue_allocate (GTK_WIDGET (view));
}
static GList*
gcal_month_view_get_children_by_uuid (GcalView *view,
GcalRecurrenceModType mod,
const gchar *uuid)
{
GHashTableIter iter;
GcalMonthView *self;
GList *children;
GList *tmp;
self = GCAL_MONTH_VIEW (view);
children = NULL;
g_hash_table_iter_init (&iter, self->children);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &tmp))
children = g_list_concat (children, g_list_copy (tmp));
return filter_event_list_by_uid_and_modtype (children, mod, uuid);
}
static void
gcal_view_interface_init (GcalViewInterface *iface)
{
iface->get_date = gcal_month_view_get_date;
iface->set_date = gcal_month_view_set_date;
iface->clear_marks = gcal_month_view_clear_marks;
iface->get_children_by_uuid = gcal_month_view_get_children_by_uuid;
}
/*
* GtkBuildable interface
*/
static void
gcal_month_view_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
GcalMonthView *self = GCAL_MONTH_VIEW (buildable);
if (type && strcmp (type, "header") == 0)
setup_header_widget (self, GTK_WIDGET (child));
else if (type && strcmp (type, "grid") == 0)
setup_month_grid (self, GTK_WIDGET (child));
else
GTK_BUILDER_WARN_INVALID_CHILD_TYPE (buildable, type);
}
static void
gtk_buildable_interface_init (GtkBuildableIface *iface)
{
iface->add_child = gcal_month_view_add_child;
}
/*
* ECalDataModelSubscriber interface
*/
static void
gcal_month_view_component_added (ECalDataModelSubscriber *subscriber,
ECalClient *client,
ECalComponent *comp)
{
GcalMonthView *self;
GtkWidget *event_widget;
GcalEvent *event;
GError *error;
error = NULL;
self = GCAL_MONTH_VIEW (subscriber);
event = gcal_event_new (e_client_get_source (E_CLIENT (client)), comp, &error);
if (error)
{
g_warning ("Error creating event: %s", error->message);
g_clear_error (&error);
return;
}
event_widget = gcal_event_widget_new (event);
gcal_event_widget_set_read_only (GCAL_EVENT_WIDGET (event_widget), e_client_is_readonly (E_CLIENT (client)));
gtk_widget_show (event_widget);
gtk_container_add (GTK_CONTAINER (subscriber), event_widget);
self->pending_event_allocation = TRUE;
g_clear_object (&event);
}
static void
gcal_month_view_component_modified (ECalDataModelSubscriber *subscriber,
ECalClient *client,
ECalComponent *comp)
{
GcalMonthView *self;
GtkWidget *new_widget;
GcalEvent *event;
GError *error;
GList *l;
error = NULL;
self = GCAL_MONTH_VIEW (subscriber);
event = gcal_event_new (e_client_get_source (E_CLIENT (client)), comp, &error);
if (error)
{
g_warning ("Error creating event: %s", error->message);
g_clear_error (&error);
return;
}
new_widget = gcal_event_widget_new (event);
l = g_hash_table_lookup (self->children, gcal_event_get_uid (event));
if (l)
{
gtk_widget_destroy (l->data);
gtk_widget_show (new_widget);
gtk_container_add (GTK_CONTAINER (subscriber), new_widget);
}
else
{
g_warning ("%s: Widget with uuid: %s not found in view: %s",
G_STRFUNC, gcal_event_get_uid (event),
gtk_widget_get_name (GTK_WIDGET (subscriber)));
gtk_widget_destroy (new_widget);
}
self->pending_event_allocation = TRUE;
g_clear_object (&event);
}
static void
gcal_month_view_component_removed (ECalDataModelSubscriber *subscriber,
ECalClient *client,
const gchar *uid,
const gchar *rid)
{
GcalMonthView *self;
g_autofree gchar *uuid = NULL;
const gchar *sid;
GList *l;
self = GCAL_MONTH_VIEW (subscriber);
sid = e_source_get_uid (e_client_get_source (E_CLIENT (client)));
if (rid != NULL)
uuid = g_strdup_printf ("%s:%s:%s", sid, uid, rid);
else
uuid = g_strdup_printf ("%s:%s", sid, uid);
l = g_hash_table_lookup (self->children, uuid);
if (!l)
{
g_warning ("%s: Widget with uuid: %s not found in view: %s",
G_STRFUNC,
uuid,
gtk_widget_get_name (GTK_WIDGET (subscriber)));
return;
}
gtk_widget_destroy (l->data);
self->pending_event_allocation = TRUE;
}
static void
gcal_month_view_freeze (ECalDataModelSubscriber *subscriber)
{
}
static void
gcal_month_view_thaw (ECalDataModelSubscriber *subscriber)
{
}
static void
e_data_model_subscriber_interface_init (ECalDataModelSubscriberInterface *iface)
{
iface->component_added = gcal_month_view_component_added;
iface->component_modified = gcal_month_view_component_modified;
iface->component_removed = gcal_month_view_component_removed;
iface->freeze = gcal_month_view_freeze;
iface->thaw = gcal_month_view_thaw;
}
/*
* GtkContainer overrides
*/
static inline guint
get_child_cell (GcalMonthView *self,
GcalEventWidget *child)
{
GcalEvent *event;
GDateTime *dt;
gint cell;
event = gcal_event_widget_get_event (child);
dt = gcal_event_get_date_start (event);
/* Don't adjust the date when the event is all day */
if (gcal_event_get_all_day (event))
{
cell = g_date_time_get_day_of_month (dt);
}
else
{
dt = g_date_time_to_local (dt);
cell = g_date_time_get_day_of_month (dt);
g_clear_pointer (&dt, g_date_time_unref);
}
return cell;
}
static void
gcal_month_view_add (GtkContainer *container,
GtkWidget *widget)
{
GcalMonthView *self;
GcalEvent *event;
const gchar *uuid;
GList *l = NULL;
g_return_if_fail (GCAL_IS_EVENT_WIDGET (widget));
g_return_if_fail (gtk_widget_get_parent (widget) == NULL);
self = GCAL_MONTH_VIEW (container);
event = gcal_event_widget_get_event (GCAL_EVENT_WIDGET (widget));
uuid = gcal_event_get_uid (event);
/* inserting in all children hash */
if (g_hash_table_lookup (self->children, uuid) != NULL)
{
g_warning ("Event with uuid: %s already added", uuid);
gtk_widget_destroy (widget);
return;
}
l = g_list_append (l, widget);
g_hash_table_insert (self->children, g_strdup (uuid), l);
if (gcal_event_is_multiday (event))
{
self->multi_cell_children = g_list_insert_sorted (self->multi_cell_children,
widget,
(GCompareFunc) gcal_event_widget_sort_events);
}
else
{
guint cell_idx;
cell_idx = get_child_cell (self, GCAL_EVENT_WIDGET (widget));
l = g_hash_table_lookup (self->single_cell_children, GINT_TO_POINTER (cell_idx));
l = g_list_insert_sorted (l, widget, (GCompareFunc) gcal_event_widget_compare_by_start_date);
if (g_list_length (l) != 1)
g_hash_table_steal (self->single_cell_children, GINT_TO_POINTER (cell_idx));
g_hash_table_insert (self->single_cell_children, GINT_TO_POINTER (cell_idx), l);
}
setup_child_widget (self, widget);
}
static void
gcal_month_view_remove (GtkContainer *container,
GtkWidget *widget)
{
GcalMonthView *self;
GtkWidget *master_widget;
GcalEvent *event;
GList *l, *aux;
const gchar *uuid;
g_return_if_fail (gtk_widget_get_parent (widget) == GTK_WIDGET (container));
if (!GCAL_IS_EVENT_WIDGET (widget))
goto out;
self = GCAL_MONTH_VIEW (container);
event = gcal_event_widget_get_event (GCAL_EVENT_WIDGET (widget));
uuid = gcal_event_get_uid (event);
l = g_hash_table_lookup (self->children, uuid);
if (l)
{
gtk_widget_unparent (widget);
master_widget = (GtkWidget*) l->data;
if (widget == master_widget)
{
if (g_list_find (self->multi_cell_children, widget) != NULL)
{
self->multi_cell_children = g_list_remove (self->multi_cell_children, widget);
aux = g_list_next (l);
if (aux != NULL)
{
l->next = NULL;
aux->prev = NULL;
g_list_foreach (aux, (GFunc) gtk_widget_unparent, NULL);
g_list_free (aux);
}
}
else
{
GHashTableIter iter;
gpointer key, value;
/*
* When an event is changed, we can't rely on it's old date
* to remove the corresponding widget. Because of that, we have
* to iter through all the widgets to see which one matches
*/
g_hash_table_iter_init (&iter, self->single_cell_children);
while (g_hash_table_iter_next (&iter, &key, &value))
{
gboolean should_break;
should_break = FALSE;
for (aux = value; aux != NULL; aux = aux->next)
{
if (aux->data == widget)
{
aux = g_list_remove (g_list_copy (value), widget);
/*
* If we removed the event and there's no event left for
* the day, remove the key from the table. If there are
* events for that day, replace the list.
*/
if (!aux)
g_hash_table_remove (self->single_cell_children, key);
else
g_hash_table_replace (self->single_cell_children, key, aux);
should_break = TRUE;
break;
}
}
if (should_break)
break;
}
}
}
l = g_list_remove (g_list_copy (l), widget);
if (!l)
g_hash_table_remove (self->children, uuid);
else
g_hash_table_replace (self->children, g_strdup (uuid), l);
}
out:
gtk_widget_queue_resize (GTK_WIDGET (container));
}
static void
gcal_month_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GcalMonthView *self;
GList *l, *l2, *aux = NULL;
self = GCAL_MONTH_VIEW (container);
/* Header */
if (self->header)
(*callback) (self->header, callback_data);
/* Header */
if (self->grid)
(*callback) (self->grid, callback_data);
/* Event widgets */
l2 = g_hash_table_get_values (self->children);
for (l = l2; l != NULL; l = g_list_next (l))
aux = g_list_concat (aux, g_list_reverse (g_list_copy (l->data)));
g_list_free (l2);
l = aux;
while (aux)
{
GtkWidget *widget = (GtkWidget*) aux->data;
aux = aux->next;
(*callback) (widget, callback_data);
}
g_list_free (l);
}
/*
* GObject overrides
*/
static void
gcal_month_view_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GcalMonthView *self = (GcalMonthView *) object;
gint i;
switch (property_id)
{
case PROP_DATE:
gcal_view_set_date (GCAL_VIEW (object), g_value_get_boxed (value));
break;
case PROP_MANAGER:
self->manager = g_value_dup_object (value);
g_signal_connect_swapped (gcal_manager_get_clock (self->manager),
"day-changed",
G_CALLBACK (update_month_cells),
self);
for (i = 0; i < 42; i++)
gcal_month_cell_set_manager (GCAL_MONTH_CELL (self->month_cell[i / 7][i % 7]), self->manager);
g_object_notify (object, "manager");
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gcal_month_view_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GcalMonthView *self = GCAL_MONTH_VIEW (object);
switch (property_id)
{
case PROP_DATE:
g_value_set_boxed (value, self->date);
break;
case PROP_MANAGER:
g_value_set_object (value, self->manager);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gcal_month_view_finalize (GObject *object)
{
GcalMonthView *self = GCAL_MONTH_VIEW (object);
g_clear_pointer (&self->date, g_free);
g_clear_pointer (&self->children, g_hash_table_destroy);
g_clear_pointer (&self->single_cell_children, g_hash_table_destroy);
g_clear_pointer (&self->overflow_cells, g_hash_table_destroy);
g_clear_pointer (&self->multi_cell_children, g_list_free);
g_clear_object (&self->manager);
if (self->update_grid_id > 0)
{
g_source_remove (self->update_grid_id);
self->update_grid_id = 0;
}
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (gcal_month_view_parent_class)->finalize (object);
}
static void
gcal_month_view_realize (GtkWidget *widget)
{
GcalMonthView *self;
GdkWindow *parent_window;
GdkWindowAttr attributes;
gint attributes_mask;
GtkAllocation allocation;
self = GCAL_MONTH_VIEW (widget);
gtk_widget_set_realized (widget, TRUE);
parent_window = gtk_widget_get_parent_window (widget);
gtk_widget_set_window (widget, 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_SCROLL_MASK |
GDK_SMOOTH_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);
}
static void
gcal_month_view_unrealize (GtkWidget *widget)
{
GcalMonthView *self = GCAL_MONTH_VIEW (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_month_view_parent_class)->unrealize (widget);
}
static void
gcal_month_view_map (GtkWidget *widget)
{
GcalMonthView *self = GCAL_MONTH_VIEW (widget);
if (self->event_window)
gdk_window_show (self->event_window);
GTK_WIDGET_CLASS (gcal_month_view_parent_class)->map (widget);
}
static void
gcal_month_view_unmap (GtkWidget *widget)
{
GcalMonthView *self = GCAL_MONTH_VIEW (widget);
if (self->event_window)
gdk_window_hide (self->event_window);
GTK_WIDGET_CLASS (gcal_month_view_parent_class)->unmap (widget);
}
static void
gcal_month_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkAllocation child_allocation;
GtkAllocation old_alloc;
GcalMonthView *self;
gdouble vertical_cell_space [42];
gdouble size_left [42];
gint allocated_events_at_day [42] = { 0, };
gint events_at_day [42] = { 0, };
gint header_height;
gint grid_height;
gint i;
GCAL_ENTRY;
self = GCAL_MONTH_VIEW (widget);
/* Allocate the widget */
gtk_widget_get_allocation (widget, &old_alloc);
gtk_widget_set_allocation (widget, allocation);
if (gtk_widget_get_realized (widget))
gdk_window_move_resize (self->event_window, allocation->x, allocation->y, allocation->width, allocation->height);
/* Header */
gtk_widget_get_preferred_height (self->header, &header_height, NULL);
child_allocation.x = allocation->x;
child_allocation.y = allocation->y;
child_allocation.width = allocation->width;
child_allocation.height = header_height;
gtk_widget_size_allocate (self->header, &child_allocation);
/* Grid */
gtk_widget_get_preferred_height (self->grid, &grid_height, NULL);
child_allocation.x = allocation->x;
child_allocation.y = allocation->y + header_height;
child_allocation.width = allocation->width;
child_allocation.height = MAX (allocation->height - header_height, grid_height);
gtk_widget_size_allocate (self->grid, &child_allocation);
/*
* At this point, the internal widgets (grid and header) already received the allocation they
* asked for, and are happy. Now it comes the tricky part: when GTK is allocating sizes (here),
* we cannot show or hide or add or remove widgets. Doing that can potentially trigger an infinite
* allocation cycle, and this function will keep running forever nonstop, the CPU will melt, the
* fans will scream and users will cry in anger.
*
* Thus, to avoid the infinite allocation cycle, we *only* update the event widgets when something
* actually changed - either a new event widget was added (pending_event_allocation) or the size
* of the Month view changed.
*
* The following code can be read as the pseudo-code:
*
* if (something changed)
* recalculate and recreate event widgets;
*/
if (self->pending_event_allocation ||
allocation->width != old_alloc.width ||
allocation->height != old_alloc.height)
{
/* Remove every widget' parts, but the master widget */
cleanup_overflow_information (self);
/* Event widgets */
count_events_per_day (self, events_at_day);
for (i = 0; i < 42; i++)
{
gint h = gcal_month_cell_get_content_space (GCAL_MONTH_CELL (self->month_cell[i / 7][i % 7]));
vertical_cell_space[i] = h;
size_left[i] = h;
}
/* Allocate multidays events before single day events, as they have a higher priority */
allocate_multiday_events (self, vertical_cell_space, size_left, events_at_day, allocated_events_at_day);
allocate_single_day_events (self, vertical_cell_space, size_left, events_at_day, allocated_events_at_day);
}
queue_update_month_cells (self);
self->pending_event_allocation = FALSE;
GCAL_EXIT;
}
static gboolean
gcal_month_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GcalMonthView *self;
gdouble x, y;
gint days, clicked_cell;
GCAL_ENTRY;
self = GCAL_MONTH_VIEW (widget);
days = self->days_delay + icaltime_days_in_month (self->date->month, self->date->year);
/* The event may have come from a child widget, so make it relative to the month view */
if (!gcal_translate_child_window_position (widget, event->window, event->x, event->y, &x, &y))
return GDK_EVENT_PROPAGATE;
get_month_cell_at_position (self, x, y, &clicked_cell);
if (clicked_cell >= self->days_delay && clicked_cell < days)
{
g_clear_pointer (&self->start_mark_cell, g_date_time_unref);
self->keyboard_cell = clicked_cell;
self->start_mark_cell = g_date_time_new_local (self->date->year, self->date->month,
self->keyboard_cell - self->days_delay + 1,
0, 0, 0);
update_month_cells (self);
}
GCAL_RETURN (GDK_EVENT_PROPAGATE);
}
static gboolean
gcal_month_view_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event)
{
GcalMonthView *self;
gdouble x, y;
gint days;
gint new_end_cell;
GCAL_ENTRY;
self = GCAL_MONTH_VIEW (widget);
days = self->days_delay + icaltime_days_in_month (self->date->month, self->date->year);
if (!gcal_translate_child_window_position (widget, event->window, event->x, event->y, &x, &y))
GCAL_RETURN (GDK_EVENT_PROPAGATE);
get_month_cell_at_position (self, x, y, &new_end_cell);
if (self->start_mark_cell)
{
if (!(event->state & GDK_BUTTON_PRESS_MASK))
GCAL_RETURN (GDK_EVENT_STOP);
if (new_end_cell < self->days_delay || new_end_cell >= days)
GCAL_RETURN (GDK_EVENT_PROPAGATE);
/* Let the keyboard focus track the pointer */
self->keyboard_cell = new_end_cell;
g_clear_pointer (&self->end_mark_cell, g_date_time_unref);
self->end_mark_cell = g_date_time_new_local (self->date->year,
self->date->month,
new_end_cell - self->days_delay + 1,
0, 0, 0);
update_month_cells (self);
GCAL_RETURN (GDK_EVENT_STOP);
}
else
{
if (gtk_widget_is_visible (GTK_WIDGET (self->overflow_popover)))
GCAL_RETURN (GDK_EVENT_PROPAGATE);
}
GCAL_RETURN (GDK_EVENT_PROPAGATE);
}
static gboolean
gcal_month_view_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GcalMonthView *self;
gdouble x, y;
gint days, current_day;
GCAL_ENTRY;
self = GCAL_MONTH_VIEW (widget);
days = self->days_delay + icaltime_days_in_month (self->date->month, self->date->year);
if (!gcal_translate_child_window_position (widget, event->window, event->x, event->y, &x, &y))
GCAL_RETURN (GDK_EVENT_PROPAGATE);
get_month_cell_at_position (self, x, y, &current_day);
if (current_day >= self->days_delay && current_day < days)
{
gboolean valid;
g_clear_pointer (&self->end_mark_cell, g_date_time_unref);
self->keyboard_cell = current_day;
self->end_mark_cell = g_date_time_new_local (self->date->year, self->date->month, current_day - self->days_delay + 1, 0, 0, 0);
self->date->day = g_date_time_get_day_of_month (self->end_mark_cell);
/* First, make sure to show the popover */
valid = emit_create_event (self);
update_month_cells (self);
/* Then update the active date */
g_object_notify (G_OBJECT (self), "active-date");
GCAL_RETURN (valid);
}
else
{
/* If the button is released over an invalid cell, entirely cancel the selection */
cancel_selection (GCAL_MONTH_VIEW (widget));
gtk_widget_queue_resize (widget);
GCAL_RETURN (GDK_EVENT_PROPAGATE);
}
}
static void
gcal_month_view_direction_changed (GtkWidget *widget,
GtkTextDirection previous_direction)
{
GcalMonthView *self = GCAL_MONTH_VIEW (widget);
self->pending_event_allocation = TRUE;
gtk_widget_queue_resize (widget);
}
static void
gcal_month_view_class_init (GcalMonthViewClass *klass)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = G_OBJECT_CLASS (klass);
object_class->set_property = gcal_month_view_set_property;
object_class->get_property = gcal_month_view_get_property;
object_class->finalize = gcal_month_view_finalize;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->realize = gcal_month_view_realize;
widget_class->unrealize = gcal_month_view_unrealize;
widget_class->map = gcal_month_view_map;
widget_class->unmap = gcal_month_view_unmap;
widget_class->size_allocate = gcal_month_view_size_allocate;
widget_class->button_press_event = gcal_month_view_button_press;
widget_class->motion_notify_event = gcal_month_view_motion_notify_event;
widget_class->button_release_event = gcal_month_view_button_release;
widget_class->direction_changed = gcal_month_view_direction_changed;
widget_class->key_press_event = gcal_month_view_key_press;
widget_class->scroll_event = gcal_month_view_scroll_event;
container_class = GTK_CONTAINER_CLASS (klass);
container_class->add = gcal_month_view_add;
container_class->remove = gcal_month_view_remove;
container_class->forall = gcal_month_view_forall;
g_object_class_override_property (object_class, PROP_DATE, "active-date");
g_object_class_override_property (object_class, PROP_MANAGER, "manager");
signals[EVENT_ACTIVATED] = g_signal_new ("event-activated",
GCAL_TYPE_MONTH_VIEW,
G_SIGNAL_RUN_LAST,
0, NULL, NULL, NULL,
G_TYPE_NONE,
1,
GCAL_TYPE_EVENT_WIDGET);
gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/calendar/month-view.ui");
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, label_0);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, label_1);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, label_2);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, label_3);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, label_4);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, label_5);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, label_6);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, month_label);
gtk_widget_class_bind_template_child (widget_class, GcalMonthView, year_label);
gtk_widget_class_bind_template_callback (widget_class, add_new_event_button_cb);
gtk_widget_class_set_css_name (widget_class, "calendar-view");
g_type_ensure (GCAL_TYPE_MONTH_POPOVER);
}
static void
gcal_month_view_init (GcalMonthView *self)
{
gtk_widget_init_template (GTK_WIDGET (self));
gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
self->children = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify) g_list_free);
self->single_cell_children = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) g_list_free);
self->overflow_cells = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) g_list_free);
self->pending_event_allocation = FALSE;
/* Weekday header labels */
self->weekday_label[0] = self->label_0;
self->weekday_label[1] = self->label_1;
self->weekday_label[2] = self->label_2;
self->weekday_label[3] = self->label_3;
self->weekday_label[4] = self->label_4;
self->weekday_label[5] = self->label_5;
self->weekday_label[6] = self->label_6;
update_weekday_labels (self);
/* Overflow popover */
self->overflow_popover = (GcalMonthPopover*) gcal_month_popover_new ();
g_object_bind_property (self,
"manager",
self->overflow_popover,
"manager",
G_BINDING_DEFAULT);
g_signal_connect_swapped (self->overflow_popover,
"event-activated",
G_CALLBACK (event_activated),
self);
}
/* Public API */
/**
* gcal_month_view_set_first_weekday:
* @view: A #GcalMonthView instance
* @day_nr: Integer representing the first day of the week
*
* Set the first day of the week according to the locale, being
* 0 for Sunday, 1 for Monday and so on.
*/
void
gcal_month_view_set_first_weekday (GcalMonthView *self,
gint day_nr)
{
g_return_if_fail (GCAL_IS_MONTH_VIEW (self));
self->first_weekday = day_nr;
/* update days_delay */
if (self->date)
self->days_delay = (time_day_of_week (1, self->date->month - 1, self->date->year) - self->first_weekday + 7) % 7;
update_weekday_labels (self);
}
/**
* gcal_month_view_set_use_24h_format:
* @view:
* @use_24h:
*
* Whether the view will show time using 24h or 12h format
*/
void
gcal_month_view_set_use_24h_format (GcalMonthView *self,
gboolean use_24h)
{
self->use_24h_format = use_24h;
}
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