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federated-calendar/src/gcal-month-view.c
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Georges Basile Stavracas Neto 0c1df74735 month-view: add keyboard navigation 
This big patch implements keyboard navigation for
Month view and the main window. Also, refactor
some of it's drawing code.
2015-07-15 20:40:55 -03:00

1935 lines
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/* -*- mode: c; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* gcal-month-view.c
*
* Copyright (C) 2015 - Erick Pérez Castellanos
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gcal-month-view.h"
#include "gcal-subscriber-view-private.h"
#include "gcal-utils.h"
#include "gcal-view.h"
#include <glib/gi18n.h>
#include <math.h>
typedef struct
{
GtkWidget *overflow_popover;
GtkWidget *events_list_box;
GtkWidget *popover_title;
GdkWindow *event_window;
/**
* 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;
/**
* button_down/up flag
* These keeps the cell index, meaning 0 for left top, 1 for the next in the row from left to right, etc.
* Note that this does not take into account the disabled row before the first active row.
*/
gint start_mark_cell;
gint end_mark_cell;
/**
* This flags signals when the cursor is over an overflow indicator and when once has been clicked
*/
gint pressed_overflow_indicator;
gint hovered_overflow_indicator;
/**
* clock format from GNOME desktop settings
*/
gboolean use_24h_format;
/* text direction factors */
gboolean k;
icaltimetype *current_date;
/* property */
icaltimetype *date;
} GcalMonthViewPrivate;
enum
{
PROP_0,
PROP_DATE, /* active-date inherited property */
};
#define MIRROR(val,start,end) (start + (val / end) * end + (end - cell % end))
static gint gather_button_event_data (GcalMonthView *view,
gdouble x,
gdouble y,
gboolean *out_on_indicator,
gdouble *out_x,
gdouble *out_y);
static gdouble get_start_grid_y (GtkWidget *widget);
static gboolean get_widget_parts (gint first_cell,
gint last_cell,
gint natural_height,
gdouble vertical_cell_space,
gdouble *size_left,
GArray *cells,
GArray *lengths);
static void rebuild_popover_for_day (GcalMonthView *view,
gint day);
static void update_list_box_headers (GtkListBoxRow *row,
GtkListBoxRow *before,
gpointer user_data);
static gboolean gcal_month_view_key_press (GtkWidget *widget,
GdkEventKey *event);
static void add_new_event_button_cb (GtkWidget *button,
gpointer user_data);
static void gcal_view_interface_init (GcalViewIface *iface);
static void gcal_month_view_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gcal_month_view_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gcal_month_view_finalize (GObject *object);
static void gcal_month_view_realize (GtkWidget *widget);
static void gcal_month_view_unrealize (GtkWidget *widget);
static void gcal_month_view_map (GtkWidget *widget);
static void gcal_month_view_unmap (GtkWidget *widget);
static void gcal_month_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gcal_month_view_draw (GtkWidget *widget,
cairo_t *cr);
static gboolean gcal_month_view_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gcal_month_view_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gcal_month_view_button_release (GtkWidget *widget,
GdkEventButton *event);
static void gcal_month_view_direction_changed (GtkWidget *widget,
GtkTextDirection previous_direction);
static gboolean gcal_month_view_is_child_multiday (GcalSubscriberView *subscriber,
GcalEventWidget *child);
static guint gcal_month_view_get_child_cell (GcalSubscriberView *subscriber,
GcalEventWidget *child);
static void gcal_month_view_clear_state (GcalSubscriberView *subscriber);
static icaltimetype* gcal_month_view_get_initial_date (GcalView *view);
static icaltimetype* gcal_month_view_get_final_date (GcalView *view);
static void gcal_month_view_clear_marks (GcalView *view);
static GList* gcal_month_view_get_children_by_uuid (GcalView *view,
const gchar *uuid);
G_DEFINE_TYPE_WITH_CODE (GcalMonthView, gcal_month_view,GCAL_TYPE_SUBSCRIBER_VIEW,
G_ADD_PRIVATE (GcalMonthView)
G_IMPLEMENT_INTERFACE (GCAL_TYPE_VIEW, gcal_view_interface_init));
static gint
real_cell (gint cell,
gboolean rtl)
{
return rtl ? MIRROR (cell, 0, 7) - 1 : cell;
}
static void
get_cell_position (GcalMonthView *view,
gint cell,
gdouble *out_x,
gdouble *out_y)
{
GcalMonthViewPrivate *priv;
GtkWidget *widget;
gdouble start_grid_y;
gint shown_rows;
gdouble first_row_gap;
gdouble cell_width;
gdouble cell_height;
priv = gcal_month_view_get_instance_private (view);
widget = GTK_WIDGET (view);
start_grid_y = get_start_grid_y (widget);
shown_rows = ceil ((priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year)) / 7.0);
first_row_gap = (6 - shown_rows) * 0.5; /* invalid area before the actual rows */
cell_width = gtk_widget_get_allocated_width (widget) / 7.0;
cell_height = (gtk_widget_get_allocated_height (widget) - start_grid_y) / 6.0;
if (out_x != NULL)
*out_x = cell_width * ((cell % 7) + 0.5);
if (out_y != NULL)
*out_y = cell_height * ((cell / 7) + first_row_gap + 0.5) + start_grid_y;
}
static gboolean
show_popover_for_position (GcalMonthView *view,
gdouble x,
gdouble y,
gboolean on_indicator)
{
GcalSubscriberViewPrivate *ppriv;
GcalMonthViewPrivate *priv;
GtkWidget *widget;
gint start_day, end_day;
icaltimetype *start_date;
icaltimetype *end_date = NULL;
widget = GTK_WIDGET (view);
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
ppriv = GCAL_SUBSCRIBER_VIEW (widget)->priv;
if (priv->start_mark_cell < 0)
return FALSE;
start_day = priv->start_mark_cell - priv->days_delay + 1;
end_day = priv->end_mark_cell - priv->days_delay + 1;
if (priv->pressed_overflow_indicator != -1 && priv->start_mark_cell == priv->end_mark_cell &&
g_hash_table_contains (ppriv->overflow_cells, GINT_TO_POINTER (priv->pressed_overflow_indicator)))
{
priv->hovered_overflow_indicator = priv->pressed_overflow_indicator;
rebuild_popover_for_day (GCAL_MONTH_VIEW (widget), end_day);
gtk_widget_show_all (priv->overflow_popover);
gtk_widget_queue_draw (widget);
priv->pressed_overflow_indicator = -1;
priv->start_mark_cell = -1;
priv->end_mark_cell = -1;
return TRUE;
}
else
{
start_date = gcal_dup_icaltime (priv->date);
start_date->day = start_day;
start_date->is_date = 1;
end_date = gcal_dup_icaltime (priv->date);
end_date->day = end_day;
end_date->is_date = 1;
if (start_date->day > end_date->day)
{
gint day = start_date->day;
start_date->day = end_date->day;
end_date->day = day;
}
end_date->day += 1;
g_signal_emit_by_name (GCAL_VIEW (widget), "create-event", start_date, end_date, x, y);
g_free (start_date);
g_free (end_date);
}
gtk_widget_queue_draw (widget);
priv->pressed_overflow_indicator = -1;
return FALSE;
}
static gint
gather_button_event_data (GcalMonthView *view,
gdouble x,
gdouble y,
gboolean *out_on_indicator,
gdouble *out_x,
gdouble *out_y)
{
GcalMonthViewPrivate *priv;
GtkWidget *widget;
gdouble start_grid_y;
gint shown_rows;
gdouble first_row_gap;
gdouble cell_width;
gdouble cell_height;
gint cell;
GtkStyleContext *context;
GtkStateFlags state;
PangoLayout *overflow_layout;
PangoFontDescription *ofont_desc;
gint font_height, padding_bottom;
priv = gcal_month_view_get_instance_private (view);
widget = GTK_WIDGET (view);
start_grid_y = get_start_grid_y (widget);
shown_rows = ceil ((priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year)) / 7.0);
first_row_gap = (6 - shown_rows) * 0.5; /* invalid area before the actual rows */
cell_width = gtk_widget_get_allocated_width (widget) / 7.0;
cell_height = (gtk_widget_get_allocated_height (widget) - start_grid_y) / 6.0;
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_save (context);
gtk_style_context_add_class (context, "overflow");
gtk_style_context_get (context, state, "font", &ofont_desc, "padding-bottom", &padding_bottom, NULL);
overflow_layout = gtk_widget_create_pango_layout (widget, NULL);
pango_layout_set_font_description (overflow_layout, ofont_desc);
pango_layout_get_pixel_size (overflow_layout, NULL, &font_height);
gtk_style_context_restore (context);
pango_font_description_free (ofont_desc);
g_object_unref (overflow_layout);
y = y - start_grid_y - first_row_gap * cell_height;
cell = 7 * (gint)(y / cell_height) + (gint)(x / cell_width);
if (out_on_indicator != NULL)
{
gdouble upper_border = cell_height * ((gint) y / (gint) cell_height);
y = y - upper_border;
*out_on_indicator = (cell_height - font_height - padding_bottom < y && y < cell_height);
}
if (out_x != NULL)
*out_x = cell_width * ((cell % 7) + 0.5);
if (out_y != NULL)
*out_y = cell_height * ((cell / 7) + first_row_gap + 0.5) + start_grid_y;
return cell;
}
static gdouble
get_start_grid_y (GtkWidget *widget)
{
GtkStyleContext* context;
GtkStateFlags state_flags;
gint padding_top;
PangoLayout *layout;
PangoFontDescription *font_desc;
gint font_height;
gdouble start_grid_y;
context = gtk_widget_get_style_context (widget);
state_flags = gtk_widget_get_state_flags (widget);
layout = gtk_widget_create_pango_layout (widget, NULL);
gtk_style_context_save (context);
gtk_style_context_add_class (context, "first-view-header");
gtk_style_context_get (context, state_flags, "padding-top", &padding_top, "font", &font_desc, NULL);
pango_layout_set_font_description (layout, font_desc);
pango_layout_get_pixel_size (layout, NULL, &font_height);
pango_font_description_free (font_desc);
gtk_style_context_restore (context);
start_grid_y = 2 * padding_top + font_height;
gtk_style_context_get (context, state_flags, "font", &font_desc, "padding-top", &padding_top, NULL);
pango_layout_set_font_description (layout, font_desc);
pango_layout_get_pixel_size (layout, NULL, &font_height);
start_grid_y += padding_top + font_height;
pango_font_description_free (font_desc);
g_object_unref (layout);
return start_grid_y;
}
static gboolean
get_widget_parts (gint first_cell,
gint last_cell,
gint natural_height,
gdouble vertical_cell_space,
gdouble *size_left,
GArray *cells,
GArray *lengths)
{
gint i;
gint current_part_length;
gdouble y, old_y = - 1.0;
if (last_cell < first_cell)
{
gint swap = last_cell;
last_cell = first_cell;
first_cell = swap;
}
for (i = first_cell; i <= last_cell; i++)
{
if (size_left[i] < natural_height)
{
return FALSE;
}
else
{
y = vertical_cell_space - size_left[i];
if (y != old_y)
{
current_part_length = 1;
g_array_append_val (cells, i);
g_array_append_val (lengths, current_part_length);
old_y = y;
}
else
{
current_part_length++;
g_array_index (lengths, gint, lengths->len - 1) = current_part_length;
}
}
}
return TRUE;
}
static void
rebuild_popover_for_day (GcalMonthView *view,
gint day)
{
GcalSubscriberViewPrivate *ppriv;
GcalMonthViewPrivate *priv;
GList *l;
GtkWidget *child_widget;
GdkRectangle rect;
gchar *label_title;
icaltimetype date, second_date;
const icaltimetype *dt_start, *dt_end;
gint start_comparison, end_comparison;
/* placement helpers */
gdouble start_grid_y, cell_width, cell_height;
gint shown_rows;
gint real_clicked_popover_cell;
GtkStyleContext *context;
GtkStateFlags state;
PangoLayout *overflow_layout;
PangoFontDescription *ofont_desc;
gint font_height, padding_bottom;
priv = gcal_month_view_get_instance_private (view);
ppriv = GCAL_SUBSCRIBER_VIEW (view)->priv;
label_title = g_strdup_printf ("%s %d", gcal_get_month_name (priv->date->month - 1), day);
gtk_label_set_text (GTK_LABEL (priv->popover_title), label_title);
g_free (label_title);
/* Clean all the widgets */
gtk_container_foreach (GTK_CONTAINER (priv->events_list_box), (GtkCallback) gtk_widget_destroy, NULL);
l = g_hash_table_lookup (ppriv->overflow_cells, GINT_TO_POINTER (priv->pressed_overflow_indicator));
if (l != NULL)
{
date = *(priv->date);
date.day = day;
second_date = date;
date.hour = 0;
date.minute = 0;
second_date.hour = 23;
second_date.minute =59;
}
for (; l != NULL; l = g_list_next (l))
{
child_widget = gcal_event_widget_clone (GCAL_EVENT_WIDGET (l->data));
gtk_container_add (GTK_CONTAINER (priv->events_list_box), child_widget);
_gcal_subscriber_view_setup_child (GCAL_SUBSCRIBER_VIEW (view), child_widget);
dt_start = gcal_event_widget_peek_start_date (GCAL_EVENT_WIDGET (child_widget));
dt_end = gcal_event_widget_peek_end_date (GCAL_EVENT_WIDGET (child_widget));
date.is_date = dt_start->is_date;
start_comparison = icaltime_compare (*dt_start, date);
end_comparison = icaltime_compare (second_date, *dt_end);
if (start_comparison == -1 && end_comparison == -1)
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted");
else if (start_comparison == -1)
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted-start");
else if (end_comparison == -1)
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted-end");
}
/* placement calculation */
start_grid_y = get_start_grid_y (GTK_WIDGET (view));
shown_rows = ceil ((priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year)) / 7.0);
cell_width = gtk_widget_get_allocated_width (GTK_WIDGET (view)) / 7.0;
cell_height = (gtk_widget_get_allocated_height (GTK_WIDGET (view)) - start_grid_y) / 6.0;
context = gtk_widget_get_style_context (GTK_WIDGET (view));
state = gtk_widget_get_state_flags (GTK_WIDGET (view));
gtk_style_context_save (context);
gtk_style_context_add_class (context, "overflow");
gtk_style_context_get (context, state, "font", &ofont_desc, "padding-bottom", &padding_bottom, NULL);
overflow_layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
pango_layout_set_font_description (overflow_layout, ofont_desc);
pango_layout_get_pixel_size (overflow_layout, NULL, &font_height);
gtk_style_context_restore (context);
pango_font_description_free (ofont_desc);
g_object_unref (overflow_layout);
real_clicked_popover_cell = real_cell (priv->pressed_overflow_indicator, priv->k);
rect.y = cell_height * ((real_clicked_popover_cell / 7) + 1.0 + (6 - shown_rows) * 0.5) + start_grid_y - padding_bottom - font_height / 2;
rect.width = 1;
rect.height = 1;
if (real_clicked_popover_cell % 7 < 3)
{
rect.x = cell_width * ((real_clicked_popover_cell % 7) + 1.0);
gtk_popover_set_position (GTK_POPOVER (priv->overflow_popover), priv->k ? GTK_POS_LEFT : GTK_POS_RIGHT);
}
else if (real_clicked_popover_cell % 7 > 3)
{
rect.x = cell_width * ((real_clicked_popover_cell % 7));
gtk_popover_set_position (GTK_POPOVER (priv->overflow_popover), priv->k ? GTK_POS_RIGHT : GTK_POS_LEFT);
}
else
{
rect.x = cell_width * ((real_clicked_popover_cell % 7) + 1.0 - priv->k);
gtk_popover_set_position (GTK_POPOVER (priv->overflow_popover), GTK_POS_RIGHT);
}
gtk_popover_set_pointing_to (GTK_POPOVER (priv->overflow_popover), &rect);
/* sizing hack */
child_widget = gtk_bin_get_child (GTK_BIN (priv->overflow_popover));
gtk_widget_set_size_request (child_widget, 200, -1);
g_object_set_data (G_OBJECT (priv->overflow_popover), "selected-day", GINT_TO_POINTER (day));
}
static void
overflow_popover_hide (GtkWidget *widget,
gpointer user_data)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (user_data));
priv->hovered_overflow_indicator = -1;
gtk_widget_queue_draw (GTK_WIDGET (user_data));
}
static void
update_list_box_headers (GtkListBoxRow *row,
GtkListBoxRow *before,
gpointer user_data)
{
GcalMonthViewPrivate *priv;
GtkWidget *row_child, *before_child = NULL;
const icaltimetype *row_date, *before_date = NULL;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (user_data));
row_child = gtk_bin_get_child (GTK_BIN (row));
row_date = gcal_event_widget_peek_start_date (GCAL_EVENT_WIDGET (row_child));
if (before != NULL)
{
before_child = gtk_bin_get_child (GTK_BIN (before));
before_date = gcal_event_widget_peek_start_date (GCAL_EVENT_WIDGET (before_child));
}
if (!gcal_event_widget_is_multiday (GCAL_EVENT_WIDGET (row_child)) &&
!gcal_event_widget_get_all_day (GCAL_EVENT_WIDGET (row_child)) &&
(before_date == NULL || before_date->hour != row_date->hour))
{
gchar *time;
GtkWidget *label, *vbox;
if (priv->use_24h_format)
time = g_strdup_printf ("%.2d:00", row_date->hour);
else
time = g_strdup_printf ("%.2d:00 %s", row_date->hour % 12, row_date->hour < 12 ? "AM" : "PM");
label = gtk_label_new (time);
gtk_style_context_add_class (gtk_widget_get_style_context (label), GTK_STYLE_CLASS_DIM_LABEL);
g_object_set (label, "margin-start", 6, "halign", GTK_ALIGN_START, NULL);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (vbox), label);
gtk_container_add (GTK_CONTAINER (vbox), gtk_separator_new (GTK_ORIENTATION_HORIZONTAL));
gtk_widget_show_all (vbox);
gtk_list_box_row_set_header (row, vbox);
g_free (time);
}
}
static gboolean
gcal_month_view_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GcalMonthViewPrivate *priv;
gboolean selection, valid_key;
gdouble x, y;
gint min, max, diff;
g_return_val_if_fail (GCAL_IS_MONTH_VIEW (widget), FALSE);
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
selection = event->state & GDK_SHIFT_MASK;
valid_key = FALSE;
diff = 0;
min = priv->days_delay;
max = priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year) - 1;
/*
* 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 && priv->start_mark_cell == -1)
{
priv->start_mark_cell = priv->keyboard_cell;
}
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 = priv->k ? 1 : -1;
break;
case GDK_KEY_Right:
valid_key = TRUE;
diff = priv->k ? -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 && priv->start_mark_cell == -1 && priv->end_mark_cell == -1)
priv->start_mark_cell = priv->end_mark_cell = priv->keyboard_cell;
get_cell_position (GCAL_MONTH_VIEW (widget), real_cell (priv->end_mark_cell, priv->k), &x, &y);
show_popover_for_position (GCAL_MONTH_VIEW (widget), x, y, FALSE);
break;
case GDK_KEY_Escape:
priv->start_mark_cell = priv->end_mark_cell = -1;
break;
default:
return FALSE;
}
if (priv->keyboard_cell + diff <= max && priv->keyboard_cell + diff >= min)
{
priv->keyboard_cell += diff;
}
if (selection)
{
priv->end_mark_cell = priv->keyboard_cell;
}
else if (!selection && valid_key)
{
/* Cancel selection if SHIFT is not pressed */
priv->start_mark_cell = priv->end_mark_cell = -1;
}
gtk_widget_queue_draw (widget);
return TRUE;
}
static void
add_new_event_button_cb (GtkWidget *button,
gpointer user_data)
{
GcalMonthViewPrivate *priv;
gint day;
icaltimetype *start_date;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (user_data));
gtk_widget_hide (priv->overflow_popover);
day = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (priv->overflow_popover), "selected-day"));
start_date = gcal_dup_icaltime (priv->date);
start_date->day = day;
start_date->is_date = 1;
g_signal_emit_by_name (GCAL_VIEW (user_data), "create-event-detailed", start_date, NULL);
g_free (start_date);
}
static void
gcal_month_view_class_init (GcalMonthViewClass *klass)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
GcalSubscriberViewClass *subscriber_view_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->draw = gcal_month_view_draw;
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;
subscriber_view_class = GCAL_SUBSCRIBER_VIEW_CLASS (klass);
subscriber_view_class->is_child_multicell = gcal_month_view_is_child_multiday;
subscriber_view_class->get_child_cell = gcal_month_view_get_child_cell;
subscriber_view_class->clear_state = gcal_month_view_clear_state;
g_object_class_override_property (object_class, PROP_DATE, "active-date");
}
static void
gcal_month_view_init (GcalMonthView *self)
{
GcalMonthViewPrivate *priv;
GtkWidget *grid;
GtkWidget *button;
gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
priv = gcal_month_view_get_instance_private (self);
priv->start_mark_cell = -1;
priv->end_mark_cell = -1;
priv->pressed_overflow_indicator = -1;
priv->hovered_overflow_indicator = -1;
gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (self)), "calendar-view");
priv->k = gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_RTL;
priv->overflow_popover = gtk_popover_new (GTK_WIDGET (self));
gtk_style_context_add_class (gtk_widget_get_style_context (priv->overflow_popover), "events");
g_signal_connect (priv->overflow_popover, "hide", G_CALLBACK (overflow_popover_hide), self);
grid = gtk_grid_new ();
g_object_set (grid, "row-spacing", 6, "orientation", GTK_ORIENTATION_VERTICAL, NULL);
gtk_container_add (GTK_CONTAINER (priv->overflow_popover), grid);
priv->popover_title = gtk_label_new (NULL);
gtk_style_context_add_class (gtk_widget_get_style_context (priv->popover_title), "sidebar-header");
g_object_set (priv->popover_title, "margin", 6, "halign", GTK_ALIGN_START, NULL);
priv->events_list_box = gtk_list_box_new ();
gtk_list_box_set_selection_mode (GTK_LIST_BOX (priv->events_list_box), GTK_SELECTION_NONE);
gtk_list_box_set_header_func (GTK_LIST_BOX (priv->events_list_box), update_list_box_headers, self, NULL);
button = gtk_button_new_with_label (_("Add Event…"));
g_object_set (button, "hexpand", TRUE, NULL);
g_signal_connect (button, "clicked", G_CALLBACK (add_new_event_button_cb), self);
gtk_container_add (GTK_CONTAINER (grid), priv->popover_title);
gtk_container_add (GTK_CONTAINER (grid), priv->events_list_box);
gtk_container_add (GTK_CONTAINER (grid), button);
}
static void
gcal_view_interface_init (GcalViewIface *iface)
{
iface->get_initial_date = gcal_month_view_get_initial_date;
iface->get_final_date = gcal_month_view_get_final_date;
iface->clear_marks = gcal_month_view_clear_marks;
iface->get_children_by_uuid = gcal_month_view_get_children_by_uuid;
}
static void
gcal_month_view_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (object));
switch (property_id)
{
case PROP_DATE:
{
if (priv->date != NULL)
g_free (priv->date);
priv->date = g_value_dup_boxed (value);
priv->days_delay = (time_day_of_week (1, priv->date->month - 1, priv->date->year) - priv->first_weekday + 7) % 7;
priv->keyboard_cell = priv->days_delay;
priv->start_mark_cell = -1;
priv->end_mark_cell = -1;
gtk_widget_queue_draw (GTK_WIDGET (object));
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)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (object));
switch (property_id)
{
case PROP_DATE:
g_value_set_boxed (value, priv->date);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gcal_month_view_finalize (GObject *object)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (object));
if (priv->date != NULL)
g_free (priv->date);
/* 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)
{
GcalMonthViewPrivate *priv;
GdkWindow *parent_window;
GdkWindowAttr attributes;
gint attributes_mask;
GtkAllocation allocation;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (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);
attributes_mask = GDK_WA_X | GDK_WA_Y;
priv->event_window = gdk_window_new (parent_window,
&attributes,
attributes_mask);
gtk_widget_register_window (widget, priv->event_window);
}
static void
gcal_month_view_unrealize (GtkWidget *widget)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
if (priv->event_window != NULL)
{
gtk_widget_unregister_window (widget, priv->event_window);
gdk_window_destroy (priv->event_window);
priv->event_window = NULL;
}
GTK_WIDGET_CLASS (gcal_month_view_parent_class)->unrealize (widget);
}
static void
gcal_month_view_map (GtkWidget *widget)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
if (priv->event_window != NULL)
gdk_window_show (priv->event_window);
GTK_WIDGET_CLASS (gcal_month_view_parent_class)->map (widget);
}
static void
gcal_month_view_unmap (GtkWidget *widget)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
if (priv->event_window != NULL)
gdk_window_hide (priv->event_window);
GTK_WIDGET_CLASS (gcal_month_view_parent_class)->unmap (widget);
}
static void
gcal_month_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GcalSubscriberViewPrivate *ppriv;
GcalMonthViewPrivate *priv;
gint i, j, sw, shown_rows;
GtkBorder margin;
gint padding_bottom, font_height;
PangoLayout *layout;
PangoFontDescription *font_desc;
gdouble start_grid_y, first_row_gap, cell_width, cell_height, vertical_cell_space;
gdouble pos_x, pos_y, size_left [42];
const gchar *uuid;
GtkWidget *child_widget;
GtkAllocation child_allocation;
gint natural_height;
GList *widgets, *aux, *l = NULL;
GHashTableIter iter;
gpointer key, value;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
ppriv = GCAL_SUBSCRIBER_VIEW (widget)->priv;
if (!ppriv->children_changed &&
allocation->height == gtk_widget_get_allocated_height (widget) &&
allocation->width == gtk_widget_get_allocated_width (widget))
{
return;
}
/* remove every widget' parts, but the master widget */
widgets = g_hash_table_get_values (ppriv->children);
for (aux = widgets; aux != NULL; aux = g_list_next (aux))
l = g_list_concat (l, g_list_copy (g_list_next (aux->data)));
g_list_free (widgets);
g_list_free_full (l, (GDestroyNotify) gtk_widget_destroy);
/* clean overflow information */
g_hash_table_remove_all (ppriv->overflow_cells);
gtk_widget_set_allocation (widget, allocation);
if (gtk_widget_get_realized (widget))
gdk_window_move_resize (priv->event_window, allocation->x, allocation->y, allocation->width, allocation->height);
gtk_style_context_get (gtk_widget_get_style_context (widget), gtk_widget_get_state_flags (widget),
"font", &font_desc, "padding-bottom", &padding_bottom, NULL);
layout = gtk_widget_create_pango_layout (widget, _("Other events"));
pango_layout_set_font_description (layout, font_desc);
pango_layout_get_pixel_size (layout, NULL, &font_height);
pango_font_description_free (font_desc);
g_object_unref (layout);
start_grid_y = get_start_grid_y (widget);
cell_width = allocation->width / 7.0;
cell_height = (allocation->height - start_grid_y) / 6.0;
vertical_cell_space = cell_height - (padding_bottom + font_height);
for (i = 0; i < 42; i++)
size_left[i] = vertical_cell_space;
shown_rows = ceil ((priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year)) / 7.0);
first_row_gap = (6 - shown_rows) * 0.5;
sw = 1 - 2 * priv->k;
/* allocate multidays events */
for (l = ppriv->multi_cell_children; l != NULL; l = g_list_next (l))
{
gint first_cell, last_cell, first_row, last_row, start, end;
gboolean visible, start_before = TRUE, end_after = TRUE;
const icaltimetype *date;
GArray *cells, *lengths;
child_widget = (GtkWidget*) l->data;
uuid = gcal_event_widget_peek_uuid (GCAL_EVENT_WIDGET (child_widget));
if (!gtk_widget_is_visible (child_widget) && !g_hash_table_contains (ppriv->hidden_as_overflow, uuid))
continue;
gtk_widget_show (child_widget);
gtk_widget_get_preferred_height (child_widget, NULL, &natural_height);
j = 1;
date = gcal_event_widget_peek_start_date (GCAL_EVENT_WIDGET (child_widget));
if (date->month == priv->date->month)
{
j = date->day;
start_before = FALSE;
}
j += priv->days_delay;
first_cell = 7 * ((j - 1) / 7)+ 6 * priv->k + sw * ((j - 1) % 7);
j = icaltime_days_in_month (priv->date->month, priv->date->year);
date = gcal_event_widget_peek_end_date (GCAL_EVENT_WIDGET (child_widget));
if (gcal_event_widget_get_all_day (GCAL_EVENT_WIDGET (child_widget)))
{
if (date->month == priv->date->month)
{
j = date->day - 1;
end_after = FALSE;
}
}
else
{
if (date->month == priv->date->month)
{
j = date->day;
end_after = FALSE;
}
}
j += priv->days_delay;
last_cell = 7 * ((j - 1) / 7)+ 6 * priv->k + sw * ((j - 1) % 7);
first_row = first_cell / 7;
last_row = last_cell / 7;
visible = TRUE;
cells = g_array_sized_new (TRUE, TRUE, sizeof (gint), 16);
lengths = g_array_sized_new (TRUE, TRUE, sizeof (gint), 16);
for (i = first_row; i <= last_row && visible; i++)
{
start = i * 7 + priv->k * 6;
end = i * 7 + (1 - priv->k) * 6;
if (i == first_row)
{
start = first_cell;
}
if (i == last_row)
{
end = last_cell;
}
visible = get_widget_parts (start, end, natural_height, vertical_cell_space, size_left, cells, lengths);
}
if (visible)
{
for (i = 0; i < cells->len; i++)
{
gint cell_idx = g_array_index (cells, gint, i);
gint row = cell_idx / 7;
gint column = cell_idx % 7;
if (i != 0)
{
child_widget = gcal_event_widget_clone (GCAL_EVENT_WIDGET (child_widget));
_gcal_subscriber_view_setup_child (GCAL_SUBSCRIBER_VIEW (widget), child_widget);
gtk_widget_show (child_widget);
if (i != cells->len - 1 || end_after)
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted");
else
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted-start");
aux = g_hash_table_lookup (ppriv->children, uuid);
aux = g_list_append (aux, child_widget);
}
else if (i == 0 && cells->len == 1)
{
if (start_before)
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted-start");
if (end_after)
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted-end");
}
else if (i != cells->len - 1)
{
if (start_before)
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted");
else
gtk_style_context_add_class (gtk_widget_get_style_context (child_widget), "slanted-end");
}
gtk_style_context_get_margin (gtk_widget_get_style_context (child_widget),
gtk_widget_get_state_flags (child_widget),
&margin);
pos_x = cell_width * column + margin.left;
pos_y = cell_height * (row + first_row_gap) + start_grid_y + margin.top;
child_allocation.x = pos_x;
child_allocation.y = pos_y + vertical_cell_space - size_left[cell_idx];
child_allocation.width = cell_width * g_array_index (lengths, gint, i) - (margin.left + margin.right);
child_allocation.height = natural_height;
gtk_widget_size_allocate (child_widget, &child_allocation);
g_hash_table_remove (ppriv->hidden_as_overflow, uuid);
/* update size_left */
for (j = 0; j < g_array_index (lengths, gint, i); j++)
size_left[cell_idx + j] -= natural_height + margin.top + margin.bottom;
}
}
else
{
gtk_widget_hide (child_widget);
g_hash_table_add (ppriv->hidden_as_overflow, g_strdup (uuid));
for (i = first_cell; i <= last_cell; i++)
{
aux = g_hash_table_lookup (ppriv->overflow_cells, GINT_TO_POINTER (i));
aux = g_list_append (aux, child_widget);
if (g_list_length (aux) == 1)
g_hash_table_insert (ppriv->overflow_cells, GINT_TO_POINTER (i), aux);
else
g_hash_table_replace (ppriv->overflow_cells, GINT_TO_POINTER (i), g_list_copy (aux));
}
}
g_array_free (cells, TRUE);
g_array_free (lengths, TRUE);
}
g_hash_table_iter_init (&iter, ppriv->single_cell_children);
while (g_hash_table_iter_next (&iter, &key, &value))
{
j = GPOINTER_TO_INT (key);
j += priv->days_delay;
i = 7 * ((j - 1) / 7)+ 6 * priv->k + sw * ((j - 1) % 7);
l = (GList*) value;
for (aux = l; aux != NULL; aux = g_list_next (aux))
{
child_widget = (GtkWidget*) aux->data;
uuid = gcal_event_widget_peek_uuid (GCAL_EVENT_WIDGET (child_widget));
if (!gtk_widget_is_visible (child_widget) && !g_hash_table_contains (ppriv->hidden_as_overflow, uuid))
continue;
gtk_widget_show (child_widget);
gtk_widget_get_preferred_height (child_widget, NULL, &natural_height);
if (size_left[i] > natural_height)
{
gtk_style_context_get_margin (gtk_widget_get_style_context (child_widget),
gtk_widget_get_state_flags (child_widget),
&margin);
pos_x = cell_width * (i % 7) + margin.left;
pos_y = cell_height * ((i / 7) + first_row_gap) + start_grid_y + margin.top;
child_allocation.x = pos_x;
child_allocation.y = pos_y + vertical_cell_space - size_left[i];
child_allocation.width = cell_width - (margin.left + margin.right);
child_allocation.height = natural_height;
gtk_widget_show (child_widget);
gtk_widget_size_allocate (child_widget, &child_allocation);
g_hash_table_remove (ppriv->hidden_as_overflow, uuid);
size_left[i] -= natural_height + margin.top + margin.bottom;
}
else
{
gtk_widget_hide (child_widget);
g_hash_table_add (ppriv->hidden_as_overflow, g_strdup (uuid));
l = g_hash_table_lookup (ppriv->overflow_cells, GINT_TO_POINTER (i));
l = g_list_append (l, child_widget);
if (g_list_length (l) == 1)
g_hash_table_insert (ppriv->overflow_cells, GINT_TO_POINTER (i), l);
else
g_hash_table_replace (ppriv->overflow_cells, GINT_TO_POINTER (i), g_list_copy (l));
}
}
}
if (g_hash_table_size (ppriv->overflow_cells) != 0)
gtk_widget_queue_draw (widget);
ppriv->children_changed = FALSE;
}
static gboolean
gcal_month_view_draw (GtkWidget *widget,
cairo_t *cr)
{
GcalSubscriberViewPrivate *ppriv;
GcalMonthViewPrivate *priv;
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder padding;
GtkAllocation alloc;
GdkRGBA color;
gchar *header_str;
PangoLayout *layout;
PangoFontDescription *font_desc, *sfont_desc;
gint font_width, font_height, pos_x, pos_y, shown_rows;
gint i, j, sw, lower_mark = 43, upper_mark = -2;
gdouble start_grid_y, cell_width, cell_height, first_row_gap = 0.0;
gdouble days;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
ppriv = GCAL_SUBSCRIBER_VIEW (widget)->priv;
/* fonts and colors selection */
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_get (context, state | GTK_STATE_FLAG_SELECTED, "font", &sfont_desc, NULL);
gtk_widget_get_allocation (widget, &alloc);
start_grid_y = get_start_grid_y (widget);
cell_width = alloc.width / 7.0;
cell_height = (alloc.height - start_grid_y) / 6.0;
layout = gtk_widget_create_pango_layout (widget, NULL);
/* calculations */
days = priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year);
shown_rows = ceil (days / 7.0);
first_row_gap = (6 - shown_rows) * 0.5; /* invalid area before the actual rows */
sw = 1 - 2 * priv->k;
/* active cells */
if (priv->start_mark_cell > -1 && priv->end_mark_cell > -1)
{
lower_mark = priv->start_mark_cell - priv->days_delay + 1;
upper_mark = priv->end_mark_cell - priv->days_delay + 1;
if (lower_mark > upper_mark)
{
gint cell;
cell = lower_mark;
lower_mark = upper_mark;
upper_mark = cell;
}
}
/* view headers */
gtk_style_context_save (context);
gtk_style_context_add_class (context, "first-view-header");
gtk_style_context_get (context, state, "font", &font_desc, NULL);
gtk_style_context_get_padding (context, state, &padding);
header_str = g_strdup_printf ("%s", gcal_get_month_name (priv->date->month - 1));
pango_layout_set_text (layout, header_str, -1);
pango_layout_set_font_description (layout, font_desc);
pango_layout_get_pixel_size (layout, &font_width, NULL);
gtk_render_layout (context, cr, priv->k * (alloc.width - font_width) + sw * padding.left, padding.top, layout);
pango_font_description_free (font_desc);
g_free (header_str);
gtk_style_context_restore (context);
gtk_style_context_save (context);
gtk_style_context_add_class (context, "second-view-header");
gtk_style_context_get (context, state, "font", &font_desc, NULL);
gtk_style_context_get_padding (context, state, &padding);
header_str = g_strdup_printf ("%d", priv->date->year);
pango_layout_set_text (layout, header_str, -1);
pango_layout_set_font_description (layout, font_desc);
pango_layout_get_pixel_size (layout, &font_width, NULL);
gtk_render_layout (context, cr, (1 - priv->k) * (alloc.width - font_width) - sw * padding.left, padding.top, layout);
pango_font_description_free (font_desc);
g_free (header_str);
gtk_style_context_restore (context);
/*same padding for the rest of the view */
gtk_style_context_get_padding (context, state, &padding);
/* grid header */
gtk_style_context_save (context);
gtk_style_context_add_class (context, "header");
gtk_style_context_get (context, state, "font", &font_desc, NULL);
pango_layout_set_font_description (layout, font_desc);
for (i = 0; i < 7; i++)
{
gchar *upcased_day;
j = 6 * priv->k + sw * i;
upcased_day = g_utf8_strup (gcal_get_weekday ((j + priv->first_weekday) % 7), -1);
pango_layout_set_text (layout, upcased_day, -1);
pango_layout_get_pixel_size (layout, &font_width, &font_height);
gtk_render_layout (context, cr,
cell_width * (i + priv->k) + (sw * padding.left) - priv->k * font_width,
start_grid_y - padding.bottom - font_height,
layout);
g_free (upcased_day);
}
pango_font_description_free (font_desc);
gtk_style_context_restore (context);
/* grid numbers */
gtk_style_context_get (context, state, "font", &font_desc, NULL);
pango_layout_set_font_description (layout, font_desc);
for (i = 0; i < 7 * shown_rows; i++)
{
gchar *nr_day;
gint column = i % 7;
gint row = i / 7;
gint real_i = real_cell (i, priv->k);
j = 7 * ((i + 7 * priv->k) / 7) + sw * (i % 7) + (1 - priv->k);
if (j <= priv->days_delay)
continue;
else if (j > days)
continue;
j -= priv->days_delay;
nr_day = g_strdup_printf ("%d", j);
if (g_hash_table_contains (ppriv->overflow_cells, GINT_TO_POINTER (real_i)))
{
GList *l;
PangoLayout *overflow_layout;
PangoFontDescription *ofont_desc;
gchar *overflow_str;
gdouble y_value;
l = g_hash_table_lookup (ppriv->overflow_cells, GINT_TO_POINTER (real_i));
/* TODO: Warning: in some languages this string can be too long and may overlap with the number */
overflow_str = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "Other event", "Other %d events", g_list_length (l)),
g_list_length (l));
gtk_style_context_save (context);
gtk_style_context_add_class (context, "overflow");
if (priv->hovered_overflow_indicator == real_i)
{
gtk_style_context_set_state (context, state | GTK_STATE_FLAG_PRELIGHT);
gtk_style_context_get (context, state | GTK_STATE_FLAG_PRELIGHT, "font", &ofont_desc, NULL);
}
else
{
gtk_style_context_get (context, state, "font", &ofont_desc, NULL);
}
overflow_layout = gtk_widget_create_pango_layout (widget, overflow_str);
pango_layout_set_font_description (overflow_layout, ofont_desc);
pango_layout_set_width (overflow_layout, pango_units_from_double (cell_width));
pango_layout_set_alignment (overflow_layout, PANGO_ALIGN_CENTER);
pango_layout_get_pixel_size (overflow_layout, &font_width, &font_height);
y_value = cell_height * (row + 1 + first_row_gap) - font_height - padding.bottom + start_grid_y;
if ((!gtk_widget_is_visible (priv->overflow_popover) && priv->hovered_overflow_indicator == real_i) ||
gtk_widget_is_visible (priv->overflow_popover))
{
gtk_render_background (context, cr, cell_width * column, y_value - padding.bottom,
cell_width, font_height + padding.bottom * 2);
}
gtk_render_layout (context, cr, cell_width * column, y_value, overflow_layout);
gtk_style_context_set_state (context, state);
gtk_style_context_remove_class (context, "overflow");
gtk_style_context_restore (context);
g_free (overflow_str);
pango_font_description_free (ofont_desc);
g_object_unref (overflow_layout);
}
if (priv->date->year == priv->current_date->year && priv->date->month == priv->current_date->month &&
j == priv->current_date->day)
{
PangoLayout *clayout;
PangoFontDescription *cfont_desc;
gtk_style_context_save (context);
gtk_style_context_add_class (context, "current");
clayout = gtk_widget_create_pango_layout (widget, nr_day);
gtk_style_context_get (context, state, "font", &cfont_desc, NULL);
pango_layout_set_font_description (clayout, cfont_desc);
pango_layout_get_pixel_size (clayout, &font_width, &font_height);
/* FIXME: hardcoded padding of the number background */
gtk_render_background (context, cr,
cell_width * (column + 1 - priv->k) - sw * padding.right + (priv->k - 1) * font_width - 2.0,
cell_height * (row + 1 + first_row_gap) - font_height - padding.bottom + start_grid_y,
font_width + 4, font_height + 2);
gtk_render_layout (context, cr,
cell_width * (column + 1 - priv->k) - sw * padding.right + (priv->k - 1) * font_width,
cell_height * (row + 1 + first_row_gap) - font_height - padding.bottom + start_grid_y,
clayout);
gtk_style_context_restore (context);
pango_font_description_free (cfont_desc);
g_object_unref (clayout);
}
else if (lower_mark <= j && j <= upper_mark)
{
gtk_style_context_save (context);
gtk_style_context_set_state (context, state | GTK_STATE_FLAG_SELECTED);
pango_layout_set_text (layout, nr_day, -1);
pango_layout_set_font_description (layout, sfont_desc);
pango_layout_get_pixel_size (layout, &font_width, &font_height);
gtk_render_layout (context, cr,
cell_width * (column + 1 - priv->k) - sw * padding.right + (priv->k - 1) * font_width,
cell_height * (row + 1 + first_row_gap) - font_height - padding.bottom + start_grid_y,
layout);
gtk_style_context_restore (context);
pango_layout_set_font_description (layout, font_desc);
}
else
{
pango_layout_set_text (layout, nr_day, -1);
pango_layout_get_pixel_size (layout, &font_width, &font_height);
gtk_render_layout (context, cr,
cell_width * (column + 1 - priv->k) - sw * padding.right + (priv->k - 1) * font_width,
cell_height * (row + 1 + first_row_gap) - font_height - padding.bottom + start_grid_y,
layout);
}
g_free (nr_day);
}
pango_font_description_free (sfont_desc);
pango_font_description_free (font_desc);
/* lines */
gtk_style_context_save (context);
gtk_style_context_add_class (context, "lines");
gtk_style_context_get_color (context, state, &color);
cairo_set_line_width (cr, 0.2);
gdk_cairo_set_source_rgba (cr, &color);
/* vertical lines, the easy ones */
for (i = 0; i < 6; i++)
{
pos_x = cell_width * (i + 1);
cairo_move_to (cr, pos_x + 0.4, start_grid_y);
cairo_rel_line_to (cr, 0, alloc.height - start_grid_y);
}
/* top horizontal line */
cairo_move_to (cr, 0, start_grid_y + 0.4);
cairo_rel_line_to (cr, alloc.width, 0);
/* drawing weeks lines */
for (i = 0; i < (shown_rows % 2) + 5; i++)
{
pos_y = cell_height * (i + 0.5 * (2.0 - (shown_rows % 2))) + start_grid_y;
cairo_move_to (cr, 0, pos_y + 0.4);
cairo_rel_line_to (cr, alloc.width, 0);
}
cairo_stroke (cr);
gtk_style_context_restore (context);
/* selection borders */
if (priv->start_mark_cell != -1 && priv->end_mark_cell != -1)
{
gint first_mark, last_mark;
gint pos_x2, pos_y2;
first_mark = real_cell (priv->start_mark_cell, priv->k);
last_mark = real_cell (priv->end_mark_cell, priv->k);
if (first_mark > last_mark)
{
gint tmp = first_mark;
first_mark = last_mark;
last_mark = tmp;
}
gtk_style_context_get_color (context, state | GTK_STATE_FLAG_SELECTED, &color);
gdk_cairo_set_source_rgba (cr, &color);
cairo_set_line_width (cr, 0.4);
/* horizontals */
if ((first_mark / 7) == (last_mark / 7))
{
gint row = first_mark / 7;
gint first_column = first_mark % 7;
gint last_column = last_mark % 7;
pos_x = cell_width * (first_column);
pos_x2 = cell_width * (last_column + 1);
pos_y = cell_height * (row + first_row_gap) + start_grid_y;
pos_y2 = cell_height * (row + 1.0 + first_row_gap) + start_grid_y;
cairo_rectangle (cr, pos_x + 0.3, pos_y + 0.3, pos_x2 - pos_x + 0.6, pos_y2 - pos_y + 0.6);
}
else
{
gint first_row = first_mark / 7;
gint last_row = last_mark / 7;
gint first_column = first_mark % 7;
gint last_column = last_mark % 7;
gdouble end;
for (i = first_row; i <= last_row; i++)
{
if (i == first_row)
{
pos_x = cell_width * (first_column + priv->k);
end = (alloc.width * (1 - priv->k)) - pos_x;
}
else if (i == last_row)
{
pos_x = cell_width * (last_column + 1 - priv->k);
end = (alloc.width * priv->k) - pos_x;
}
else
{
pos_x = 0;
end = alloc.width;
}
pos_y = cell_height * (i + first_row_gap) + start_grid_y;
pos_y2 = cell_height * (i + 1.0 + first_row_gap) + start_grid_y;
cairo_rectangle (cr, pos_x + 0.3, pos_y + 0.3, ((gint)end) + 0.6, pos_y2 - pos_y + 0.6);
}
}
cairo_stroke (cr);
}
/* Draw focus rectangle */
if (priv->keyboard_cell > priv->days_delay - 1)
{
gint localized_cell;
gint x;
gint y;
localized_cell = real_cell (priv->keyboard_cell % 7, priv->k);
x = cell_width * (localized_cell);
y = cell_height * (priv->keyboard_cell / 7 + first_row_gap) + start_grid_y;
gtk_render_focus (context, cr, x, y, cell_width, cell_height);
}
g_object_unref (layout);
if (GTK_WIDGET_CLASS (gcal_month_view_parent_class)->draw != NULL)
GTK_WIDGET_CLASS (gcal_month_view_parent_class)->draw (widget, cr);
return FALSE;
}
static gboolean
gcal_month_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GcalSubscriberViewPrivate *ppriv;
GcalMonthViewPrivate *priv;
gint days, clicked_cell;
gboolean pressed_indicator = FALSE;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
ppriv = GCAL_SUBSCRIBER_VIEW (widget)->priv;
days = priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year);
clicked_cell = gather_button_event_data (GCAL_MONTH_VIEW (widget), event->x, event->y,
&pressed_indicator, NULL, NULL);
clicked_cell = real_cell (clicked_cell, priv->k);
if (clicked_cell >= priv->days_delay && clicked_cell <= days)
{
priv->start_mark_cell = clicked_cell;
priv->keyboard_cell = clicked_cell;
}
if (pressed_indicator && g_hash_table_contains (ppriv->overflow_cells, GINT_TO_POINTER (clicked_cell)))
priv->pressed_overflow_indicator = clicked_cell;
return TRUE;
}
/**
* gcal_month_view_motion_notify_event:
* @widget:
* @event:
*
* Update priv->end_cell_mark in order to update the drawing
* belonging to the days involved in the event creation
*
* Returns:
**/
static gboolean
gcal_month_view_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event)
{
GcalMonthViewPrivate *priv;
gint days;
gint new_end_cell, new_hovered_cell;
gboolean hovered_indicator = FALSE;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
days = priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year);
new_end_cell = gather_button_event_data (GCAL_MONTH_VIEW (widget), event->x, event->y, &hovered_indicator, NULL, NULL);
new_end_cell = real_cell (new_end_cell, priv->k);
if (priv->start_mark_cell != -1)
{
if (!(event->state & GDK_BUTTON_PRESS_MASK))
return TRUE;
if (new_end_cell >= priv->days_delay && new_end_cell < days)
{
priv->keyboard_cell = new_end_cell;
if (priv->end_mark_cell != priv->start_mark_cell)
priv->hovered_overflow_indicator = -1;
if (priv->end_mark_cell != new_end_cell)
gtk_widget_queue_draw (widget);
priv->end_mark_cell = new_end_cell;
return TRUE;
}
}
else
{
if (gtk_widget_is_visible (priv->overflow_popover))
return FALSE;
if (hovered_indicator)
new_hovered_cell = new_end_cell;
else
new_hovered_cell = -1;
if (priv->hovered_overflow_indicator != new_hovered_cell)
{
priv->hovered_overflow_indicator = new_hovered_cell;
gtk_widget_queue_draw (widget);
return TRUE;
}
}
return FALSE;
}
static gboolean
gcal_month_view_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GcalMonthViewPrivate *priv;
gdouble x, y;
gint days;
gboolean released_indicator = FALSE;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
days = priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year);
priv->end_mark_cell = gather_button_event_data (GCAL_MONTH_VIEW (widget), event->x, event->y, &released_indicator, &x, &y);
priv->end_mark_cell = real_cell (priv->end_mark_cell, priv->k);
if (priv->end_mark_cell >= priv->days_delay && priv->end_mark_cell < days)
{
priv->keyboard_cell = priv->end_mark_cell;
return show_popover_for_position (GCAL_MONTH_VIEW (widget), x, y, released_indicator);
}
else
{
/* If the button is released over an invalid cell, entirely cancel the selection */
priv->start_mark_cell = priv->end_mark_cell = -1;
gtk_widget_queue_draw (widget);
return FALSE;
}
}
static void
gcal_month_view_direction_changed (GtkWidget *widget,
GtkTextDirection previous_direction)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (widget));
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
priv->k = 0;
else if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
priv->k = 1;
}
static gboolean
gcal_month_view_is_child_multiday (GcalSubscriberView *subscriber,
GcalEventWidget *child)
{
return gcal_event_widget_is_multiday (child);
}
static guint
gcal_month_view_get_child_cell (GcalSubscriberView *subscriber,
GcalEventWidget *child)
{
const icaltimetype *dt_start = gcal_event_widget_peek_start_date (child);
return dt_start->day;
}
static void
gcal_month_view_clear_state (GcalSubscriberView *subscriber)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (subscriber));
priv->start_mark_cell = -1;
priv->end_mark_cell = -1;
priv->pressed_overflow_indicator = -1;
gtk_widget_hide (priv->overflow_popover);
}
/* GcalView Interface API */
/**
* gcal_month_view_get_initial_date:
*
* Since: 0.1
* Return value: the first day of the month
* Returns: (transfer full): Release with g_free()
**/
static icaltimetype*
gcal_month_view_get_initial_date (GcalView *view)
{
//FIXME to retrieve the 35 days range
GcalMonthViewPrivate *priv;
icaltimetype *new_date;
g_return_val_if_fail (GCAL_IS_MONTH_VIEW (view), NULL);
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (view));
new_date = gcal_dup_icaltime (priv->date);
new_date->day = 1;
new_date->is_date = 0;
new_date->hour = 0;
new_date->minute = 0;
new_date->second = 0;
return new_date;
}
/**
* gcal_month_view_get_final_date:
*
* Since: 0.1
* Return value: the last day of the month
* Returns: (transfer full): Release with g_free()
**/
static icaltimetype*
gcal_month_view_get_final_date (GcalView *view)
{
//FIXME to retrieve the 35 days range
GcalMonthViewPrivate *priv;
icaltimetype *new_date;
g_return_val_if_fail (GCAL_IS_MONTH_VIEW (view), NULL);
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (view));
new_date = gcal_dup_icaltime (priv->date);
new_date->day = icaltime_days_in_month (priv->date->month, priv->date->year);
new_date->is_date = 0;
new_date->hour = 23;
new_date->minute = 59;
new_date->second = 0;
return new_date;
}
static void
gcal_month_view_clear_marks (GcalView *view)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (view));
priv->start_mark_cell = -1;
priv->end_mark_cell = -1;
gtk_widget_queue_draw (GTK_WIDGET (view));
}
static GList*
gcal_month_view_get_children_by_uuid (GcalView *view,
const gchar *uuid)
{
GcalSubscriberViewPrivate *ppriv = GCAL_SUBSCRIBER_VIEW (view)->priv;
GList *l;
l = g_hash_table_lookup (ppriv->children, uuid);
if (l != NULL)
return g_list_reverse (g_list_copy (l));
return NULL;
}
/* Public API */
void
gcal_month_view_set_current_date (GcalMonthView *month_view,
icaltimetype *current_date)
{
GcalMonthViewPrivate *priv = gcal_month_view_get_instance_private (month_view);
priv->current_date = current_date;
gtk_widget_queue_draw (GTK_WIDGET (month_view));
}
/**
* 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 *view,
gint day_nr)
{
GcalMonthViewPrivate *priv = gcal_month_view_get_instance_private (view);
priv->first_weekday = day_nr;
/* update days_delay */
if (priv->date != NULL)
priv->days_delay = (time_day_of_week (1, priv->date->month - 1, priv->date->year) - priv->first_weekday + 7) % 7;
}
/**
* 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 *view,
gboolean use_24h)
{
GcalMonthViewPrivate *priv;
priv = gcal_month_view_get_instance_private (view);
priv->use_24h_format = use_24h;
}
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