diff options
Diffstat (limited to 'widgets/misc/e-calendar-item.c')
| -rw-r--r-- | widgets/misc/e-calendar-item.c | 2885 |
1 files changed, 0 insertions, 2885 deletions
diff --git a/widgets/misc/e-calendar-item.c b/widgets/misc/e-calendar-item.c deleted file mode 100644 index 32b2c62d33..0000000000 --- a/widgets/misc/e-calendar-item.c +++ /dev/null @@ -1,2885 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ - -/* - * Author : - * Damon Chaplin <damon@helixcode.com> - * - * Copyright 2000, Helix Code, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - * USA - */ - -/* - * ECalendarItem - canvas item displaying a calendar. - */ - -#include <config.h> -#include <time.h> -#include <string.h> -#include <glib.h> -#include <gtk/gtkmain.h> -#include <gtk/gtkmenu.h> -#include <gtk/gtkmenuitem.h> -#include <gtk/gtksignal.h> -#include <libgnome/gnome-defs.h> -#include <libgnome/gnome-i18n.h> -#include <gal/util/e-util.h> -#include "e-calendar-item.h" - - -/* - * These are the padding sizes between various pieces of the calendar. - */ - -/* The minimum padding around the numbers in each cell/day. */ -#define E_CALENDAR_ITEM_MIN_CELL_XPAD 4 -#define E_CALENDAR_ITEM_MIN_CELL_YPAD 0 - -/* Vertical padding. */ -#define E_CALENDAR_ITEM_YPAD_ABOVE_DAY_LETTERS 1 -#define E_CALENDAR_ITEM_YPAD_BELOW_DAY_LETTERS 0 -#define E_CALENDAR_ITEM_YPAD_ABOVE_CELLS 1 -#define E_CALENDAR_ITEM_YPAD_BELOW_CELLS 2 - -/* Horizontal padding in the heading bars. */ -#define E_CALENDAR_ITEM_XPAD_BEFORE_MONTH_NAME_WITH_BUTTON 16 -#define E_CALENDAR_ITEM_XPAD_BEFORE_MONTH_NAME 3 -#define E_CALENDAR_ITEM_XPAD_AFTER_MONTH_NAME 3 -#define E_CALENDAR_ITEM_XPAD_AFTER_MONTH_NAME_WITH_BUTTON 16 - -/* Horizontal padding in the month displays. */ -#define E_CALENDAR_ITEM_XPAD_BEFORE_WEEK_NUMBERS 4 -#define E_CALENDAR_ITEM_XPAD_AFTER_WEEK_NUMBERS 2 -#define E_CALENDAR_ITEM_XPAD_BEFORE_CELLS 1 -#define E_CALENDAR_ITEM_XPAD_AFTER_CELLS 4 - -/* The number of rows & columns of days in each month. */ -#define E_CALENDAR_ROWS_PER_MONTH 6 -#define E_CALENDAR_COLS_PER_MONTH 7 - -static const int e_calendar_item_days_in_month[12] = { - 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 -}; - -#define DAYS_IN_MONTH(year, month) \ - e_calendar_item_days_in_month[month] + (((month) == 1 \ - && ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))) ? 1 : 0) - - -static void e_calendar_item_class_init (ECalendarItemClass *class); -static void e_calendar_item_init (ECalendarItem *calitem); -static void e_calendar_item_destroy (GtkObject *o); -static void e_calendar_item_get_arg (GtkObject *o, - GtkArg *arg, - guint arg_id); -static void e_calendar_item_set_arg (GtkObject *o, - GtkArg *arg, - guint arg_id); -static void e_calendar_item_realize (GnomeCanvasItem *item); -static void e_calendar_item_unrealize (GnomeCanvasItem *item); -static void e_calendar_item_unmap (GnomeCanvasItem *item); -static void e_calendar_item_update (GnomeCanvasItem *item, - double *affine, - ArtSVP *clip_path, - int flags); -static void e_calendar_item_draw (GnomeCanvasItem *item, - GdkDrawable *drawable, - int x, - int y, - int width, - int height); -static void e_calendar_item_draw_month (ECalendarItem *calitem, - GdkDrawable *drawable, - int x, - int y, - int width, - int height, - int row, - int col); -static void e_calendar_item_draw_day_numbers (ECalendarItem *calitem, - GdkDrawable *drawable, - int width, - int height, - int row, - int col, - int year, - int month, - int start_weekday, - gint cells_x, - gint cells_y); -static double e_calendar_item_point (GnomeCanvasItem *item, - double x, - double y, - int cx, - int cy, - GnomeCanvasItem **actual_item); -static gint e_calendar_item_event (GnomeCanvasItem *item, - GdkEvent *event); -static gboolean e_calendar_item_button_press (ECalendarItem *calitem, - GdkEvent *event); -static gboolean e_calendar_item_button_release (ECalendarItem *calitem, - GdkEvent *event); -static gboolean e_calendar_item_motion (ECalendarItem *calitem, - GdkEvent *event); - -static gboolean e_calendar_item_convert_position_to_day (ECalendarItem *calitem, - gint x, - gint y, - gboolean round_empty_positions, - gint *month_offset, - gint *day, - gboolean *entire_week); -static void e_calendar_item_get_month_info (ECalendarItem *calitem, - gint row, - gint col, - gint *first_day_offset, - gint *days_in_month, - gint *days_in_prev_month); -static void e_calendar_item_recalc_sizes(ECalendarItem *calitem); - -static gint e_calendar_item_get_week_number (ECalendarItem *calitem, - gint day, - gint month, - gint year); - -static void e_calendar_item_get_day_style (ECalendarItem *calitem, - gint year, - gint month, - gint day, - gint day_style, - gboolean today, - gboolean prev_or_next_month, - gboolean selected, - gboolean has_focus, - gboolean drop_target, - GdkColor **bg_color, - GdkColor **fg_color, - GdkColor **box_color, - gboolean *bold); -static void e_calendar_item_check_selection_end (ECalendarItem *calitem, - gint start_month, - gint start_day, - gint *end_month, - gint *end_day); -static void e_calendar_item_check_selection_start(ECalendarItem *calitem, - gint *start_month, - gint *start_day, - gint end_month, - gint end_day); -static void e_calendar_item_normalize_date (ECalendarItem *calitem, - gint *year, - gint *month); -static void e_calendar_item_add_days_to_selection(ECalendarItem *calitem, - gint days); -static void e_calendar_item_round_up_selection (ECalendarItem *calitem, - gint *month_offset, - gint *day); -static void e_calendar_item_round_down_selection (ECalendarItem *calitem, - gint *month_offset, - gint *day); -static gint e_calendar_item_get_inclusive_days (ECalendarItem *calitem, - gint start_month_offset, - gint start_day, - gint end_month_offset, - gint end_day); -static void e_calendar_item_ensure_valid_day (ECalendarItem *calitem, - gint *month_offset, - gint *day); -static gboolean e_calendar_item_ensure_days_visible (ECalendarItem *calitem, - gint start_year, - gint start_month, - gint start_day, - gint end_year, - gint end_month, - gint end_day); -static void e_calendar_item_show_popup_menu (ECalendarItem *calitem, - GdkEventButton *event, - gint month_offset); -static void e_calendar_item_on_menu_item_activate(GtkWidget *menuitem, - ECalendarItem *calitem); -static void e_calendar_item_position_menu (GtkMenu *menu, - gint *x, - gint *y, - gpointer user_data); -static void e_calendar_item_date_range_changed (ECalendarItem *calitem); -static void e_calendar_item_queue_signal_emission (ECalendarItem *calitem); -static gboolean e_calendar_item_signal_emission_idle_cb (gpointer data); - -/* Our arguments. */ -enum { - ARG_0, - ARG_YEAR, - ARG_MONTH, - ARG_X1, - ARG_Y1, - ARG_X2, - ARG_Y2, - ARG_FONT, - ARG_WEEK_NUMBER_FONT, - ARG_ROW_HEIGHT, - ARG_COLUMN_WIDTH, - ARG_MINIMUM_ROWS, - ARG_MINIMUM_COLUMNS, - ARG_MAXIMUM_ROWS, - ARG_MAXIMUM_COLUMNS, - ARG_WEEK_START_DAY, - ARG_SHOW_WEEK_NUMBERS, - ARG_MAXIMUM_DAYS_SELECTED, - ARG_DAYS_TO_START_WEEK_SELECTION, - ARG_MOVE_SELECTION_WHEN_MOVING, - ARG_ROUND_SELECTION_WHEN_MOVING, - ARG_DISPLAY_POPUP -}; - -enum { - DATE_RANGE_CHANGED, - SELECTION_CHANGED, - LAST_SIGNAL -}; - - -static GnomeCanvasItemClass *parent_class; -static guint e_calendar_item_signals[LAST_SIGNAL] = { 0 }; - - -E_MAKE_TYPE (e_calendar_item, "ECalendarItem", ECalendarItem, - e_calendar_item_class_init, e_calendar_item_init, - GNOME_TYPE_CANVAS_ITEM) - - -static void -e_calendar_item_class_init (ECalendarItemClass *class) -{ - GtkObjectClass *object_class; - GnomeCanvasItemClass *item_class; - - parent_class = gtk_type_class (gnome_canvas_item_get_type()); - - object_class = (GtkObjectClass *) class; - item_class = (GnomeCanvasItemClass *) class; - - gtk_object_add_arg_type ("ECalendarItem::year", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_YEAR); - gtk_object_add_arg_type ("ECalendarItem::month", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_MONTH); - gtk_object_add_arg_type ("ECalendarItem::x1", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, - ARG_X1); - gtk_object_add_arg_type ("ECalendarItem::y1", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, - ARG_Y1); - gtk_object_add_arg_type ("ECalendarItem::x2", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, - ARG_X2); - gtk_object_add_arg_type ("ECalendarItem::y2", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, - ARG_Y2); - gtk_object_add_arg_type ("ECalendarItem::font", - GTK_TYPE_GDK_FONT, GTK_ARG_READWRITE, - ARG_FONT); - gtk_object_add_arg_type ("ECalendarItem::week_number_font", - GTK_TYPE_GDK_FONT, GTK_ARG_READWRITE, - ARG_WEEK_NUMBER_FONT); - gtk_object_add_arg_type ("ECalendarItem::row_height", - GTK_TYPE_INT, GTK_ARG_READABLE, - ARG_ROW_HEIGHT); - gtk_object_add_arg_type ("ECalendarItem::column_width", - GTK_TYPE_INT, GTK_ARG_READABLE, - ARG_COLUMN_WIDTH); - gtk_object_add_arg_type ("ECalendarItem::minimum_rows", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_MINIMUM_ROWS); - gtk_object_add_arg_type ("ECalendarItem::minimum_columns", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_MINIMUM_COLUMNS); - gtk_object_add_arg_type ("ECalendarItem::maximum_rows", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_MAXIMUM_ROWS); - gtk_object_add_arg_type ("ECalendarItem::maximum_columns", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_MAXIMUM_COLUMNS); - gtk_object_add_arg_type ("ECalendarItem::week_start_day", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_WEEK_START_DAY); - gtk_object_add_arg_type ("ECalendarItem::show_week_numbers", - GTK_TYPE_BOOL, GTK_ARG_READWRITE, - ARG_SHOW_WEEK_NUMBERS); - gtk_object_add_arg_type ("ECalendarItem::maximum_days_selected", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_MAXIMUM_DAYS_SELECTED); - gtk_object_add_arg_type ("ECalendarItem::days_to_start_week_selection", - GTK_TYPE_INT, GTK_ARG_READWRITE, - ARG_DAYS_TO_START_WEEK_SELECTION); - gtk_object_add_arg_type ("ECalendarItem::move_selection_when_moving", - GTK_TYPE_BOOL, GTK_ARG_READWRITE, - ARG_MOVE_SELECTION_WHEN_MOVING); - gtk_object_add_arg_type ("ECalendarItem::round_selection_when_moving", - GTK_TYPE_BOOL, GTK_ARG_READWRITE, - ARG_ROUND_SELECTION_WHEN_MOVING); - gtk_object_add_arg_type ("ECalendarItem::display_popup", - GTK_TYPE_BOOL, GTK_ARG_READWRITE, - ARG_DISPLAY_POPUP); - - e_calendar_item_signals[DATE_RANGE_CHANGED] = - gtk_signal_new ("date_range_changed", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (ECalendarItemClass, date_range_changed), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - e_calendar_item_signals[SELECTION_CHANGED] = - gtk_signal_new ("selection_changed", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (ECalendarItemClass, selection_changed), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - gtk_object_class_add_signals (object_class, e_calendar_item_signals, - LAST_SIGNAL); - - - object_class->destroy = e_calendar_item_destroy; - object_class->get_arg = e_calendar_item_get_arg; - object_class->set_arg = e_calendar_item_set_arg; - - /* GnomeCanvasItem method overrides */ - item_class->realize = e_calendar_item_realize; - item_class->unrealize = e_calendar_item_unrealize; - item_class->unmap = e_calendar_item_unmap; - item_class->update = e_calendar_item_update; - item_class->draw = e_calendar_item_draw; - item_class->point = e_calendar_item_point; - item_class->event = e_calendar_item_event; - - class->date_range_changed = NULL; - class->selection_changed = NULL; -} - - -static void -e_calendar_item_init (ECalendarItem *calitem) -{ - struct tm *tmp_tm; - time_t t; - - /* Set the default time to the current month. */ - t = time (NULL); - tmp_tm = localtime (&t); - calitem->year = tmp_tm->tm_year + 1900; - calitem->month = tmp_tm->tm_mon; - - calitem->styles = NULL; - - calitem->min_cols = 1; - calitem->min_rows = 1; - calitem->max_cols = -1; - calitem->max_rows = -1; - - calitem->rows = 0; - calitem->cols = 0; - - calitem->show_week_numbers = FALSE; - calitem->week_start_day = 0; - calitem->expand = TRUE; - calitem->max_days_selected = 1; - calitem->days_to_start_week_selection = -1; - calitem->move_selection_when_moving = TRUE; - calitem->round_selection_when_moving = FALSE; - calitem->display_popup = TRUE; - - calitem->x1 = 0.0; - calitem->y1 = 0.0; - calitem->x2 = 0.0; - calitem->y2 = 0.0; - - calitem->selection_set = FALSE; - - calitem->selection_changed = FALSE; - calitem->date_range_changed = FALSE; - - calitem->style_callback = NULL; - calitem->style_callback_destroy = NULL; - - /* Translators: These are the first characters of each day of the - week, 'M' for 'Monday', 'T' for Tuesday etc. */ - calitem->days = _("MTWTFSS"); - - calitem->signal_emission_idle_id = 0; -} - - -static void -e_calendar_item_destroy (GtkObject *o) -{ - ECalendarItem *calitem; - - calitem = E_CALENDAR_ITEM (o); - - e_calendar_item_set_style_callback (calitem, NULL, NULL, NULL); - - g_free (calitem->styles); - - if (calitem->signal_emission_idle_id != 0) { - g_source_remove (calitem->signal_emission_idle_id); - calitem->signal_emission_idle_id = 0; - } - - if (calitem->old_font) - gdk_font_unref (calitem->old_font); - if (calitem->old_week_number_font) - gdk_font_unref (calitem->old_week_number_font); -} - - -static void -e_calendar_item_get_arg (GtkObject *o, GtkArg *arg, guint arg_id) -{ - GnomeCanvasItem *item; - ECalendarItem *calitem; - - item = GNOME_CANVAS_ITEM (o); - calitem = E_CALENDAR_ITEM (o); - - switch (arg_id) { - case ARG_YEAR: - GTK_VALUE_INT (*arg) = calitem->year; - break; - case ARG_MONTH: - GTK_VALUE_INT (*arg) = calitem->month; - break; - case ARG_X1: - GTK_VALUE_DOUBLE (*arg) = calitem->x1; - break; - case ARG_Y1: - GTK_VALUE_DOUBLE (*arg) = calitem->y1; - break; - case ARG_X2: - GTK_VALUE_DOUBLE (*arg) = calitem->x2; - break; - case ARG_Y2: - GTK_VALUE_DOUBLE (*arg) = calitem->y2; - break; - case ARG_FONT: - GTK_VALUE_BOXED (*arg) = calitem->font; - break; - case ARG_WEEK_NUMBER_FONT: - GTK_VALUE_BOXED (*arg) = calitem->week_number_font; - break; - case ARG_ROW_HEIGHT: - e_calendar_item_recalc_sizes (calitem); - GTK_VALUE_INT (*arg) = calitem->min_month_height; - break; - case ARG_COLUMN_WIDTH: - e_calendar_item_recalc_sizes (calitem); - GTK_VALUE_INT (*arg) = calitem->min_month_width; - break; - case ARG_MINIMUM_ROWS: - GTK_VALUE_INT (*arg) = calitem->min_rows; - break; - case ARG_MINIMUM_COLUMNS: - GTK_VALUE_INT (*arg) = calitem->min_cols; - break; - case ARG_MAXIMUM_ROWS: - GTK_VALUE_INT (*arg) = calitem->max_rows; - break; - case ARG_MAXIMUM_COLUMNS: - GTK_VALUE_INT (*arg) = calitem->max_cols; - break; - case ARG_WEEK_START_DAY: - GTK_VALUE_INT (*arg) = calitem->week_start_day; - break; - case ARG_SHOW_WEEK_NUMBERS: - GTK_VALUE_BOOL (*arg) = calitem->show_week_numbers; - break; - case ARG_MAXIMUM_DAYS_SELECTED: - GTK_VALUE_INT (*arg) = e_calendar_item_get_max_days_sel (calitem); - break; - case ARG_DAYS_TO_START_WEEK_SELECTION: - GTK_VALUE_INT (*arg) = e_calendar_item_get_days_start_week_sel (calitem); - break; - case ARG_MOVE_SELECTION_WHEN_MOVING: - GTK_VALUE_BOOL (*arg) = calitem->move_selection_when_moving; - break; - case ARG_ROUND_SELECTION_WHEN_MOVING: - GTK_VALUE_BOOL (*arg) = calitem->round_selection_when_moving; - break; - case ARG_DISPLAY_POPUP: - GTK_VALUE_BOOL (*arg) = e_calendar_item_get_display_popup (calitem); - break; - default: - g_warning ("Invalid arg"); - } -} - - -static void -e_calendar_item_set_arg (GtkObject *o, GtkArg *arg, guint arg_id) -{ - GnomeCanvasItem *item; - ECalendarItem *calitem; - GdkFont *font; - gboolean need_update = FALSE; - gdouble dvalue; - gint ivalue; - gboolean bvalue; - - item = GNOME_CANVAS_ITEM (o); - calitem = E_CALENDAR_ITEM (o); - - switch (arg_id){ - case ARG_YEAR: - ivalue = GTK_VALUE_INT (*arg); - e_calendar_item_set_first_month (calitem, ivalue, - calitem->month); - break; - case ARG_MONTH: - ivalue = GTK_VALUE_INT (*arg); - e_calendar_item_set_first_month (calitem, calitem->year, - ivalue); - break; - case ARG_X1: - dvalue = GTK_VALUE_DOUBLE (*arg); - if (calitem->x1 != dvalue) { - calitem->x1 = dvalue; - need_update = TRUE; - } - break; - case ARG_Y1: - dvalue = GTK_VALUE_DOUBLE (*arg); - if (calitem->y1 != dvalue) { - calitem->y1 = dvalue; - need_update = TRUE; - } - break; - case ARG_X2: - dvalue = GTK_VALUE_DOUBLE (*arg); - if (calitem->x2 != dvalue) { - calitem->x2 = dvalue; - need_update = TRUE; - } - break; - case ARG_Y2: - dvalue = GTK_VALUE_DOUBLE (*arg); - if (calitem->y2 != dvalue) { - calitem->y2 = dvalue; - need_update = TRUE; - } - break; - case ARG_FONT: - font = GTK_VALUE_BOXED (*arg); - if (calitem->font != font) { - if (calitem->font) - gdk_font_unref (calitem->font); - calitem->font = font; - if (font) - gdk_font_ref (font); - need_update = TRUE; - } - break; - case ARG_WEEK_NUMBER_FONT: - font = GTK_VALUE_BOXED (*arg); - if (calitem->week_number_font != font) { - if (calitem->week_number_font) - gdk_font_unref (calitem->week_number_font); - calitem->week_number_font = font; - if (font) - gdk_font_ref (font); - need_update = TRUE; - } - break; - case ARG_MINIMUM_ROWS: - ivalue = GTK_VALUE_INT (*arg); - ivalue = MAX (1, ivalue); - if (calitem->min_rows != ivalue) { - calitem->min_rows = ivalue; - need_update = TRUE; - } - break; - case ARG_MINIMUM_COLUMNS: - ivalue = GTK_VALUE_INT (*arg); - ivalue = MAX (1, ivalue); - if (calitem->min_cols != ivalue) { - calitem->min_cols = ivalue; - need_update = TRUE; - } - break; - case ARG_MAXIMUM_ROWS: - ivalue = GTK_VALUE_INT (*arg); - if (calitem->max_rows != ivalue) { - calitem->max_rows = ivalue; - need_update = TRUE; - } - break; - case ARG_MAXIMUM_COLUMNS: - ivalue = GTK_VALUE_INT (*arg); - if (calitem->max_cols != ivalue) { - calitem->max_cols = ivalue; - need_update = TRUE; - } - break; - case ARG_WEEK_START_DAY: - ivalue = GTK_VALUE_INT (*arg); - if (calitem->week_start_day != ivalue) { - calitem->week_start_day = ivalue; - need_update = TRUE; - } - break; - case ARG_SHOW_WEEK_NUMBERS: - bvalue = GTK_VALUE_BOOL (*arg); - if (calitem->show_week_numbers != bvalue) { - calitem->show_week_numbers = bvalue; - need_update = TRUE; - } - break; - case ARG_MAXIMUM_DAYS_SELECTED: - ivalue = GTK_VALUE_INT (*arg); - e_calendar_item_set_max_days_sel (calitem, ivalue); - break; - case ARG_DAYS_TO_START_WEEK_SELECTION: - ivalue = GTK_VALUE_INT (*arg); - e_calendar_item_set_days_start_week_sel (calitem, ivalue); - break; - case ARG_MOVE_SELECTION_WHEN_MOVING: - bvalue = GTK_VALUE_BOOL (*arg); - calitem->move_selection_when_moving = bvalue; - break; - case ARG_ROUND_SELECTION_WHEN_MOVING: - bvalue = GTK_VALUE_BOOL (*arg); - calitem->round_selection_when_moving = bvalue; - break; - case ARG_DISPLAY_POPUP: - bvalue = GTK_VALUE_BOOL (*arg); - e_calendar_item_set_display_popup (calitem, bvalue); - break; - default: - g_warning ("Invalid arg"); - } - - if (need_update) { - gnome_canvas_item_request_update (item); - } -} - - -static void -e_calendar_item_realize (GnomeCanvasItem *item) -{ - ECalendarItem *calitem; - GdkColormap *colormap; - gboolean success[E_CALENDAR_ITEM_COLOR_LAST]; - gint nfailed; - - if (GNOME_CANVAS_ITEM_CLASS (parent_class)->realize) - (* GNOME_CANVAS_ITEM_CLASS (parent_class)->realize) (item); - - calitem = E_CALENDAR_ITEM (item); - - colormap = gtk_widget_get_colormap (GTK_WIDGET (item->canvas)); - - calitem->colors[E_CALENDAR_ITEM_COLOR_TODAY_BOX].red = 65535; - calitem->colors[E_CALENDAR_ITEM_COLOR_TODAY_BOX].green = 0; - calitem->colors[E_CALENDAR_ITEM_COLOR_TODAY_BOX].blue = 0; - - calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_FG].red = 65535; - calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_FG].green = 65535; - calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_FG].blue = 65535; - - calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_BG].red = 47000; - calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_BG].green = 47000; - calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_BG].blue = 48000; - - calitem->colors[E_CALENDAR_ITEM_COLOR_PREV_OR_NEXT_MONTH_FG].red = 47000; - calitem->colors[E_CALENDAR_ITEM_COLOR_PREV_OR_NEXT_MONTH_FG].green = 47000; - calitem->colors[E_CALENDAR_ITEM_COLOR_PREV_OR_NEXT_MONTH_FG].blue = 48000; - - nfailed = gdk_colormap_alloc_colors (colormap, calitem->colors, - E_CALENDAR_ITEM_COLOR_LAST, FALSE, - TRUE, success); - if (nfailed) - g_warning ("Failed to allocate all colors"); -} - - -static void -e_calendar_item_unrealize (GnomeCanvasItem *item) -{ - ECalendarItem *calitem; - GdkColormap *colormap; - gint i; - - calitem = E_CALENDAR_ITEM (item); - - colormap = gtk_widget_get_colormap (GTK_WIDGET (item->canvas)); - - for (i = 0; i < E_CALENDAR_ITEM_COLOR_LAST; i++) - gdk_colors_free (colormap, &calitem->colors[i].pixel, 1, 0); - - if (GNOME_CANVAS_ITEM_CLASS (parent_class)->unrealize) - (* GNOME_CANVAS_ITEM_CLASS (parent_class)->unrealize) (item); -} - - -static void -e_calendar_item_unmap (GnomeCanvasItem *item) -{ - ECalendarItem *calitem; - - calitem = E_CALENDAR_ITEM (item); - - if (calitem->selecting) { - gnome_canvas_item_ungrab (item, GDK_CURRENT_TIME); - calitem->selecting = FALSE; - } - - if (GNOME_CANVAS_ITEM_CLASS (parent_class)->unmap) - (* GNOME_CANVAS_ITEM_CLASS (parent_class)->unmap) (item); -} - - -static void -e_calendar_item_update (GnomeCanvasItem *item, - double *affine, - ArtSVP *clip_path, - int flags) -{ - ECalendarItem *calitem; - GtkStyle *style; - GdkFont *font; - gint char_height, width, height, space, space_per_cal, space_per_cell; - gint rows, cols, xthickness, ythickness; - - if (GNOME_CANVAS_ITEM_CLASS (parent_class)->update) - (* GNOME_CANVAS_ITEM_CLASS (parent_class)->update) (item, affine, clip_path, flags); - - calitem = E_CALENDAR_ITEM (item); - style = GTK_WIDGET (item->canvas)->style; - xthickness = style->klass->xthickness; - ythickness = style->klass->ythickness; - - item->x1 = calitem->x1; - item->y1 = calitem->y1; - item->x2 = calitem->x2 >= calitem->x1 ? calitem->x2 : calitem->x1; - item->y2 = calitem->y2 >= calitem->y1 ? calitem->y2 : calitem->y1; - - /* - * Calculate the new layout of the calendar. - */ - - /* Make sure the minimum row width & cell height and the widths of - all the digits and characters are up to date. */ - e_calendar_item_recalc_sizes (calitem); - - /* Calculate how many rows & cols we can fit in. */ - width = item->x2 - item->x1; - height = item->y2 - item->y1; - - width -= xthickness * 2; - height -= ythickness * 2; - - if (calitem->min_month_height == 0) - rows = 1; - else - rows = height / calitem->min_month_height; - rows = MAX (rows, calitem->min_rows); - if (calitem->max_rows > 0) - rows = MIN (rows, calitem->max_rows); - - if (calitem->min_month_width == 0) - cols = 1; - else - cols = width / calitem->min_month_width; - cols = MAX (cols, calitem->min_cols); - if (calitem->max_cols > 0) - cols = MIN (cols, calitem->max_cols); - - if (rows != calitem->rows || cols != calitem->cols) - e_calendar_item_date_range_changed (calitem); - - calitem->rows = rows; - calitem->cols = cols; - - /* Split up the empty space according to the configuration. - If the calendar is set to expand, we divide the space between the - cells and the spaces around the calendar, otherwise we place the - calendars in the center of the available area. */ - - font = calitem->font; - if (!font) - font = style->font; - char_height = font->ascent + font->descent; - - calitem->month_width = calitem->min_month_width; - calitem->month_height = calitem->min_month_height; - calitem->cell_width = calitem->max_digit_width * 2 - + E_CALENDAR_ITEM_MIN_CELL_XPAD; - calitem->cell_height = char_height - + E_CALENDAR_ITEM_MIN_CELL_YPAD; - calitem->month_tpad = 0; - calitem->month_bpad = 0; - calitem->month_lpad = 0; - calitem->month_rpad = 0; - - space = height - calitem->rows * calitem->month_height; - if (space > 0) { - space_per_cal = space / calitem->rows; - calitem->month_height += space_per_cal; - - if (calitem->expand) { - space_per_cell = space_per_cal / E_CALENDAR_ROWS_PER_MONTH; - calitem->cell_height += space_per_cell; - space_per_cal -= space_per_cell * E_CALENDAR_ROWS_PER_MONTH; - } - - calitem->month_tpad = space_per_cal / 2; - calitem->month_bpad = space_per_cal - calitem->month_tpad; - } - - space = width - calitem->cols * calitem->month_width; - if (space > 0) { - space_per_cal = space / calitem->cols; - calitem->month_width += space_per_cal; - space -= space_per_cal * calitem->cols; - - if (calitem->expand) { - space_per_cell = space_per_cal / E_CALENDAR_COLS_PER_MONTH; - calitem->cell_width += space_per_cell; - space_per_cal -= space_per_cell * E_CALENDAR_COLS_PER_MONTH; - } - - calitem->month_lpad = space_per_cal / 2; - calitem->month_rpad = space_per_cal - calitem->month_lpad; - } - - space = MAX (0, space); - calitem->x_offset = space / 2; - - gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, - item->x2, item->y2); -} - - -/* - * DRAWING ROUTINES - functions to paint the canvas item. - */ - -static void -e_calendar_item_draw (GnomeCanvasItem *canvas_item, - GdkDrawable *drawable, - int x, - int y, - int width, - int height) -{ - ECalendarItem *calitem; - GtkStyle *style; - GdkFont *font; - GdkGC *base_gc, *bg_gc; - gint char_height, row, col, row_y, bar_height, col_x; - gint xthickness, ythickness; - -#if 0 - g_print ("In e_calendar_item_draw %i,%i %ix%i\n", - x, y, width, height); -#endif - calitem = E_CALENDAR_ITEM (canvas_item); - style = GTK_WIDGET (canvas_item->canvas)->style; - font = calitem->font; - if (!font) - font = style->font; - char_height = font->ascent + font->descent; - xthickness = style->klass->xthickness; - ythickness = style->klass->ythickness; - base_gc = style->base_gc[GTK_STATE_NORMAL]; - bg_gc = style->bg_gc[GTK_STATE_NORMAL]; - - /* Clear the entire background. */ - gdk_draw_rectangle (drawable, base_gc, TRUE, - calitem->x1 - x, calitem->y1 - y, - calitem->x2 - calitem->x1 + 1, - calitem->y2 - calitem->y1 + 1); - - /* Draw the shadow around the entire item. */ - gtk_draw_shadow (style, drawable, - GTK_STATE_NORMAL, GTK_SHADOW_IN, - calitem->x1 - x, calitem->y1 - y, - calitem->x2 - calitem->x1 + 1, - calitem->y2 - calitem->y1 + 1); - - row_y = canvas_item->y1 + ythickness; - bar_height = ythickness * 2 - + E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME + char_height - + E_CALENDAR_ITEM_YPAD_BELOW_MONTH_NAME; - - for (row = 0; row < calitem->rows; row++) { - /* Draw the background for the title bars and the shadow around - it, and the vertical lines between columns. */ - - gdk_draw_rectangle (drawable, bg_gc, TRUE, - calitem->x1 + xthickness - x, row_y - y, - calitem->x2 - calitem->x1 + 1 - - xthickness * 2, - bar_height); - - gtk_draw_shadow (style, drawable, - GTK_STATE_NORMAL, GTK_SHADOW_OUT, - calitem->x1 + xthickness - x, row_y - y, - calitem->x2 - calitem->x1 + 1 - - xthickness * 2, - bar_height); - - - for (col = 0; col < calitem->cols; col++) { - if (col != 0) { - col_x = calitem->x1 + calitem->x_offset - + calitem->month_width * col; - gtk_draw_vline (style, drawable, - GTK_STATE_NORMAL, - row_y + ythickness + 1 - y, - row_y + bar_height - - ythickness - 2 - y, - col_x - 1 - x); - } - - - e_calendar_item_draw_month (calitem, drawable, x, y, - width, height, row, col); - } - - row_y += calitem->month_height; - } -} - - -static void -e_calendar_item_draw_month (ECalendarItem *calitem, - GdkDrawable *drawable, - int x, - int y, - int width, - int height, - int row, - int col) -{ - GnomeCanvasItem *item; - GtkWidget *widget; - GtkStyle *style; - GdkFont *font; - GdkGC *fg_gc; - struct tm tmp_tm; - GdkRectangle clip_rect; - gint char_height, xthickness, ythickness, start_weekday; - gint year, month; - gint month_x, month_y, month_w, month_h; - gint min_x, max_x, text_x, text_y; - gint day, day_index, cells_x, cells_y, min_cell_width, text_width; - gint clip_width, clip_height; - gchar buffer[64]; - -#if 0 - g_print ("In e_calendar_item_draw_month: %i,%i %ix%i row:%i col:%i\n", - x, y, width, height, row, col); -#endif - item = GNOME_CANVAS_ITEM (calitem); - widget = GTK_WIDGET (item->canvas); - style = widget->style; - font = calitem->font; - if (!font) - font = style->font; - char_height = font->ascent + font->descent; - xthickness = style->klass->xthickness; - ythickness = style->klass->ythickness; - fg_gc = style->fg_gc[GTK_STATE_NORMAL]; - - /* Calculate the top-left position of the entire month display. */ - month_x = item->x1 + xthickness + calitem->x_offset - + col * calitem->month_width - x; - month_w = item->x2 - item->x1 - xthickness * 2; - month_w = MIN (month_w, calitem->month_width); - month_y = item->y1 + ythickness + row * calitem->month_height - y; - month_h = item->y2 - item->y1 - ythickness * 2; - month_h = MIN (month_h, calitem->month_height); - - /* Just return if the month is outside the given area. */ - if (month_x >= width || month_x + calitem->month_width <= 0 - || month_y >= height || month_y + calitem->month_height <= 0) - return; - - month = calitem->month + row * calitem->cols + col; - year = calitem->year + month / 12; - month %= 12; - - /* Draw the month name & year, with clipping. Note that the top row - needs extra space around it for the buttons. */ - if (row == 0 && col == 0) - min_x = E_CALENDAR_ITEM_XPAD_BEFORE_MONTH_NAME_WITH_BUTTON; - else - min_x = E_CALENDAR_ITEM_XPAD_BEFORE_MONTH_NAME; - - max_x = month_w; - if (row == 0 && col == calitem->cols - 1) - max_x -= E_CALENDAR_ITEM_XPAD_AFTER_MONTH_NAME_WITH_BUTTON; - else - max_x -= E_CALENDAR_ITEM_XPAD_AFTER_MONTH_NAME; - - text_y = month_y + style->klass->ythickness - + E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME; - clip_rect.x = month_x + min_x; - clip_rect.x = MAX (0, clip_rect.x); - clip_rect.y = MAX (0, text_y); - - memset (&tmp_tm, 0, sizeof (tmp_tm)); - tmp_tm.tm_year = year - 1900; - tmp_tm.tm_mon = month; - tmp_tm.tm_mday = 1; - tmp_tm.tm_isdst = -1; - mktime (&tmp_tm); - start_weekday = (tmp_tm.tm_wday + 6) % 7; - - if (month_x + max_x - clip_rect.x > 0) { - clip_rect.width = month_x + max_x - clip_rect.x; - clip_rect.height = text_y + char_height - clip_rect.y; - gdk_gc_set_clip_rectangle (fg_gc, &clip_rect); - - /* This is a strftime() format. %B = Month name, %Y = Year. */ - strftime (buffer, sizeof (buffer), _("%B %Y"), &tmp_tm); - - /* Ideally we place the text centered in the month, but we - won't go to the left of the minimum x position. */ - text_width = gdk_string_width (font, buffer); - text_x = (calitem->month_width - text_width) / 2; - text_x = MAX (min_x, text_x); - - gdk_draw_string (drawable, font, fg_gc, - month_x + text_x, text_y + font->ascent, buffer); - } - - /* Set the clip rectangle for the main month display. */ - clip_rect.x = MAX (0, month_x); - clip_rect.y = MAX (0, month_y); - clip_width = month_x + month_w - clip_rect.x; - clip_height = month_y + month_h - clip_rect.y; - - if (clip_width <= 0 || clip_height <= 0) - return; - - clip_rect.width = clip_width; - clip_rect.height = clip_height; - - gdk_gc_set_clip_rectangle (fg_gc, &clip_rect); - - - /* Draw the day initials across the top of the month. */ - min_cell_width = calitem->max_digit_width * 2 - + E_CALENDAR_ITEM_MIN_CELL_XPAD; - - cells_x = month_x + E_CALENDAR_ITEM_XPAD_BEFORE_WEEK_NUMBERS + calitem->month_lpad - + E_CALENDAR_ITEM_XPAD_BEFORE_CELLS; - if (calitem->show_week_numbers) - cells_x += calitem->max_week_number_digit_width * 2 - + E_CALENDAR_ITEM_XPAD_AFTER_WEEK_NUMBERS + 1; - text_x = cells_x + calitem->cell_width - - (calitem->cell_width - min_cell_width) / 2; - text_x -= E_CALENDAR_ITEM_MIN_CELL_XPAD / 2; - text_y = month_y + ythickness * 2 - + E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME - + char_height + E_CALENDAR_ITEM_YPAD_BELOW_MONTH_NAME - + E_CALENDAR_ITEM_YPAD_ABOVE_DAY_LETTERS + calitem->month_tpad; - - cells_y = text_y + char_height - + E_CALENDAR_ITEM_YPAD_BELOW_DAY_LETTERS + 1 - + E_CALENDAR_ITEM_YPAD_ABOVE_CELLS; - - text_y += font->ascent; - day_index = calitem->week_start_day; - for (day = 0; day < 7; day++) { - gdk_draw_text (drawable, font, fg_gc, - text_x - calitem->day_widths[day_index], text_y, - &calitem->days[day_index], 1); - text_x += calitem->cell_width; - day_index++; - if (day_index == 7) - day_index = 0; - } - - - /* Draw the horizontal line beneath the day initials. */ - gdk_draw_line (drawable, fg_gc, - cells_x - E_CALENDAR_ITEM_XPAD_BEFORE_CELLS, - cells_y - E_CALENDAR_ITEM_YPAD_ABOVE_CELLS - 1, - cells_x + E_CALENDAR_COLS_PER_MONTH * calitem->cell_width - 1, - cells_y - E_CALENDAR_ITEM_YPAD_ABOVE_CELLS - 1); - - e_calendar_item_draw_day_numbers (calitem, drawable, width, height, - row, col, year, month, start_weekday, - cells_x, cells_y); - - /* Draw the vertical line after the week number. */ - if (calitem->show_week_numbers) { - gdk_draw_line (drawable, fg_gc, - cells_x - E_CALENDAR_ITEM_XPAD_BEFORE_CELLS - 1, - cells_y - E_CALENDAR_ITEM_YPAD_ABOVE_CELLS - 1, - cells_x - E_CALENDAR_ITEM_XPAD_BEFORE_CELLS - 1, - cells_y + E_CALENDAR_ROWS_PER_MONTH * calitem->cell_height - 1); - } - - gdk_gc_set_clip_rectangle (fg_gc, NULL); -} - - -static void -e_calendar_item_draw_day_numbers (ECalendarItem *calitem, - GdkDrawable *drawable, - int width, - int height, - int row, - int col, - int year, - int month, - int start_weekday, - gint cells_x, - gint cells_y) -{ - GnomeCanvasItem *item; - GtkWidget *widget; - GtkStyle *style; - GdkFont *font, *wkfont; - GdkGC *fg_gc; - GdkColor *bg_color, *fg_color, *box_color; - struct tm *today_tm; - time_t t; - gint char_height, min_cell_width, min_cell_height; - gint day_num, drow, dcol, day_x, day_y; - gint text_x, text_y; - gint num_chars, digit; - gint week_num, mon, days_from_week_start; - gint years[3], months[3], days_in_month[3]; - gboolean today, selected, has_focus = FALSE, drop_target = FALSE; - gboolean bold, draw_day, finished = FALSE; - gint today_year, today_month, today_mday, month_offset; - gchar buffer[2]; - gint day_style = 0; - - item = GNOME_CANVAS_ITEM (calitem); - widget = GTK_WIDGET (item->canvas); - style = widget->style; - font = calitem->font; - if (!font) - font = style->font; - wkfont = calitem->week_number_font; - if (!wkfont) - wkfont = font; - fg_gc = style->fg_gc[GTK_STATE_NORMAL]; - char_height = font->ascent + font->descent; - - min_cell_width = calitem->max_digit_width * 2 - + E_CALENDAR_ITEM_MIN_CELL_XPAD; - min_cell_height = char_height + E_CALENDAR_ITEM_MIN_CELL_YPAD; - - /* Calculate the number of days in the previous, current, and next - months. */ - years[0] = years[1] = years[2] = year; - months[0] = month - 1; - months[1] = month; - months[2] = month + 1; - if (months[0] == -1) { - months[0] = 11; - years[0]--; - } - if (months[2] == 12) { - months[2] = 0; - years[2]++; - } - - days_in_month[0] = DAYS_IN_MONTH (years[0], months[0]); - days_in_month[1] = DAYS_IN_MONTH (years[1], months[1]); - days_in_month[2] = DAYS_IN_MONTH (years[2], months[2]); - - /* Mon 0 is the previous month, which we may show the end of. Mon 1 is - the current month, and mon 2 is the next month. */ - mon = 0; - - month_offset = row * calitem->cols + col - 1; - day_num = days_in_month[0]; - days_from_week_start = (start_weekday + 7 - calitem->week_start_day) - % 7; - /* For the top-left month we show the end of the previous month, and - if the new month starts on the first day of the week we show a - complete week from the previous month. */ - if (days_from_week_start == 0) { - if (row == 0 && col == 0) { - day_num -= 6; - } else { - mon++; - month_offset++; - day_num = 1; - } - } else { - day_num -= days_from_week_start - 1; - } - - /* Get today's date, so we can highlight it. */ - t = time (NULL); - today_tm = localtime (&t); - today_year = today_tm->tm_year + 1900; - today_month = today_tm->tm_mon; - today_mday = today_tm->tm_mday; - - /* We usually skip the last days of the previous month (mon = 0), - except for the top-left month displayed. */ - draw_day = (mon == 1 || (row == 0 && col == 0)); - - for (drow = 0; drow < 6; drow++) { - /* Draw the week number. */ - if (calitem->show_week_numbers) { - week_num = e_calendar_item_get_week_number (calitem, - day_num, - months[mon], - years[mon]); - - text_x = cells_x - E_CALENDAR_ITEM_XPAD_BEFORE_CELLS - 1 - - E_CALENDAR_ITEM_XPAD_AFTER_WEEK_NUMBERS; - text_y = cells_y + drow * calitem->cell_height + - + (calitem->cell_height - min_cell_height + 1) / 2; - - num_chars = 0; - if (week_num >= 10) { - digit = week_num / 10; - text_x -= calitem->week_number_digit_widths[digit]; - buffer[num_chars++] = digit + '0'; - } - - digit = week_num % 10; - text_x -= calitem->week_number_digit_widths[digit]; - buffer[num_chars++] = digit + '0'; - - gdk_gc_set_foreground (fg_gc, - &style->fg[GTK_STATE_NORMAL]); - gdk_draw_text (drawable, wkfont, fg_gc, - text_x, text_y + font->ascent, - buffer, num_chars); - } - - for (dcol = 0; dcol < 7; dcol++) { - if (draw_day) { - day_x = cells_x + dcol * calitem->cell_width; - day_y = cells_y + drow * calitem->cell_height; - - today = years[mon] == today_year - && months[mon] == today_month - && day_num == today_mday; - - selected = calitem->selection_set - && (calitem->selection_start_month_offset < month_offset - || (calitem->selection_start_month_offset == month_offset - && calitem->selection_start_day <= day_num)) - && (calitem->selection_end_month_offset > month_offset - || (calitem->selection_end_month_offset == month_offset - && calitem->selection_end_day >= day_num)); - - if (calitem->styles) - day_style = calitem->styles[(month_offset + 1) * 32 + day_num]; - - /* Get the colors & style to use for the day.*/ - if (calitem->style_callback) - (*calitem->style_callback) - (calitem, - years[mon], - months[mon], - day_num, - day_style, - today, - mon != 1, - selected, - has_focus, - drop_target, - &bg_color, - &fg_color, - &box_color, - &bold, - calitem->style_callback_data); - else - e_calendar_item_get_day_style - (calitem, - years[mon], - months[mon], - day_num, - day_style, - today, - mon != 1, - selected, - has_focus, - drop_target, - &bg_color, - &fg_color, - &box_color, - &bold); - - /* Draw the background, if set. */ - if (bg_color) { - gdk_gc_set_foreground (fg_gc, bg_color); - gdk_draw_rectangle (drawable, fg_gc, - TRUE, - day_x, day_y, - calitem->cell_width, - calitem->cell_height); - } - - /* Draw the box, if set. */ - if (box_color) { - gdk_gc_set_foreground (fg_gc, box_color); - gdk_draw_rectangle (drawable, fg_gc, - FALSE, - day_x, day_y, - calitem->cell_width - 1, - calitem->cell_height - 1); - } - - /* Draw the 1- or 2-digit day number. */ - day_x += calitem->cell_width - (calitem->cell_width - min_cell_width) / 2; - day_x -= E_CALENDAR_ITEM_MIN_CELL_XPAD / 2; - day_y += (calitem->cell_height - min_cell_height + 1) / 2; - day_y += E_CALENDAR_ITEM_MIN_CELL_YPAD / 2; - - num_chars = 0; - if (day_num >= 10) { - digit = day_num / 10; - day_x -= calitem->digit_widths[digit]; - buffer[num_chars++] = digit + '0'; - } - - digit = day_num % 10; - day_x -= calitem->digit_widths[digit]; - buffer[num_chars++] = digit + '0'; - - if (fg_color) { - gdk_gc_set_foreground (fg_gc, - fg_color); - } else { - gdk_gc_set_foreground (fg_gc, - &style->fg[GTK_STATE_NORMAL]); - } - - gdk_draw_text (drawable, font, fg_gc, - day_x, - day_y + font->ascent, - buffer, num_chars); - /* We use a stupid technique for bold. Just - draw it again 1 pixel to the left. */ - if (bold) - gdk_draw_text (drawable, font, fg_gc, - day_x - 1, - day_y + font->ascent, - buffer, num_chars); - } - - /* See if we've reached the end of a month. */ - if (day_num == days_in_month[mon]) { - month_offset++; - mon++; - /* We only draw the start of the next month - for the bottom-right month displayed. */ - if (mon == 2 && (row != calitem->rows - 1 - || col != calitem->cols - 1)) { - /* Set a flag so we exit the loop. */ - finished = TRUE; - break; - } - day_num = 1; - draw_day = TRUE; - } else { - day_num++; - } - } - - /* Exit the loop if the flag is set. */ - if (finished) - break; - } - - /* Reset the foreground color. */ - gdk_gc_set_foreground (fg_gc, &style->fg[GTK_STATE_NORMAL]); -} - - -static gint -e_calendar_item_get_week_number (ECalendarItem *calitem, - gint day, - gint month, - gint year) -{ - GDate tmp_date; - gint weekday, yearday, offset, week_num; - - /* FIXME: check what happens at year boundaries. */ - - g_date_clear (&tmp_date, 1); - g_date_set_dmy (&tmp_date, day, month + 1, year); - - /* This results in a value of 0 (Monday) - 6 (Sunday). */ - weekday = g_date_weekday (&tmp_date) - 1; - - /* Calculate the offset from the start of the week. */ - offset = (calitem->week_start_day + 7 - weekday) % 7; - - /* Calculate the day of the year, from 0 to 365. */ - yearday = g_date_day_of_year (&tmp_date) - 1; - - /* If the week starts on or after 29th December, it is week 1 of the - next year, since there are 4 days in the next year. */ - g_date_subtract_days (&tmp_date, offset); - if (g_date_month (&tmp_date) == 12 && g_date_day (&tmp_date) >= 29) - return 1; - - /* Calculate the week number, from 0. */ - week_num = (yearday - offset) / 7; - - /* If the first week starts on or after Jan 5th, then we need to add - 1 since the previous week will really be the first week. */ - if ((yearday - offset) % 7 >= 4) - week_num++; - - /* Add 1 so week numbers are from 1 to 53. */ - return week_num + 1; -} - - - -/* This is supposed to return the nearest item the the point and the distance. - Since we are the only item we just return ourself and 0 for the distance. - This is needed so that we get button/motion events. */ -static double -e_calendar_item_point (GnomeCanvasItem *item, double x, double y, - int cx, int cy, - GnomeCanvasItem **actual_item) -{ - *actual_item = item; - return 0.0; -} - - -static gint -e_calendar_item_event (GnomeCanvasItem *item, GdkEvent *event) -{ - ECalendarItem *calitem; - - calitem = E_CALENDAR_ITEM (item); - - switch (event->type) { - case GDK_BUTTON_PRESS: - return e_calendar_item_button_press (calitem, event); - case GDK_BUTTON_RELEASE: - return e_calendar_item_button_release (calitem, event); - case GDK_MOTION_NOTIFY: - return e_calendar_item_motion (calitem, event); - default: - break; - } - - return FALSE; -} - - - -/* This checks if any fonts have changed, and if so it recalculates the - text sizes and the minimum month size. */ -static void -e_calendar_item_recalc_sizes (ECalendarItem *calitem) -{ - GnomeCanvasItem *canvas_item; - GtkStyle *style; - GdkFont *font, *wkfont; - gchar *digits = "0123456789"; - gint day, digit, max_digit_width, max_week_number_digit_width; - gint char_height, width, min_cell_width, min_cell_height; - - canvas_item = GNOME_CANVAS_ITEM (calitem); - style = GTK_WIDGET (canvas_item->canvas)->style; - - if (!style) - return; - - font = calitem->font; - if (!font) - font = style->font; - wkfont = calitem->week_number_font; - if (!wkfont) - wkfont = font; - - g_return_if_fail (font != NULL); - g_return_if_fail (wkfont != NULL); - - char_height = font->ascent + font->descent; - - /* If both fonts are the same, just return. */ - if (font != calitem->old_font - || wkfont != calitem->old_week_number_font) { - if (calitem->old_font) - gdk_font_unref (calitem->old_font); - calitem->old_font = font; - gdk_font_ref (font); - - if (calitem->old_week_number_font) - gdk_font_unref (calitem->old_week_number_font); - calitem->old_week_number_font = wkfont; - gdk_font_ref (wkfont); - - for (day = 0; day < 7; day++) - calitem->day_widths[day] = gdk_char_width (font, calitem->days[day]); - - max_digit_width = 0; - max_week_number_digit_width = 0; - for (digit = 0; digit < 10; digit++) { - width = gdk_char_width (font, digits[digit]); - calitem->digit_widths[digit] = width; - max_digit_width = MAX (max_digit_width, width); - - if (wkfont) { - width = gdk_char_width (wkfont, digits[digit]); - calitem->week_number_digit_widths[digit] = width; - max_week_number_digit_width = MAX (max_week_number_digit_width, width); - } else { - calitem->week_number_digit_widths[digit] = width; - max_week_number_digit_width = max_digit_width; - } - } - calitem->max_digit_width = max_digit_width; - calitem->max_week_number_digit_width = max_week_number_digit_width; - } - - min_cell_width = calitem->max_digit_width * 2 - + E_CALENDAR_ITEM_MIN_CELL_XPAD; - min_cell_height = char_height + E_CALENDAR_ITEM_MIN_CELL_YPAD; - - calitem->min_month_width = E_CALENDAR_ITEM_XPAD_BEFORE_WEEK_NUMBERS - + E_CALENDAR_ITEM_XPAD_BEFORE_CELLS + min_cell_width * 7 - + E_CALENDAR_ITEM_XPAD_AFTER_CELLS; - if (calitem->show_week_numbers) { - calitem->min_month_width += calitem->max_week_number_digit_width * 2 - + E_CALENDAR_ITEM_XPAD_AFTER_WEEK_NUMBERS + 1; - } - - calitem->min_month_height = style->klass->ythickness * 2 - + E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME + char_height - + E_CALENDAR_ITEM_YPAD_BELOW_MONTH_NAME + 1 - + E_CALENDAR_ITEM_YPAD_ABOVE_DAY_LETTERS - + char_height + E_CALENDAR_ITEM_YPAD_BELOW_DAY_LETTERS + 1 - + E_CALENDAR_ITEM_YPAD_ABOVE_CELLS + min_cell_height * 6 - + E_CALENDAR_ITEM_YPAD_BELOW_CELLS; -} - - -static void -e_calendar_item_get_day_style (ECalendarItem *calitem, - gint year, - gint month, - gint day, - gint day_style, - gboolean today, - gboolean prev_or_next_month, - gboolean selected, - gboolean has_focus, - gboolean drop_target, - GdkColor **bg_color, - GdkColor **fg_color, - GdkColor **box_color, - gboolean *bold) -{ - *bg_color = NULL; - *fg_color = NULL; - *box_color = NULL; - *bold = FALSE; - - if (day_style == 1) - *bold = TRUE; - - if (today) - *box_color = &calitem->colors[E_CALENDAR_ITEM_COLOR_TODAY_BOX]; - - if (prev_or_next_month) - *fg_color = &calitem->colors[E_CALENDAR_ITEM_COLOR_PREV_OR_NEXT_MONTH_FG]; - - if (selected) { - *fg_color = &calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_FG]; - *bg_color = &calitem->colors[E_CALENDAR_ITEM_COLOR_SELECTION_BG]; - } -} - - - -static gboolean -e_calendar_item_button_press (ECalendarItem *calitem, - GdkEvent *event) -{ - gint month_offset, day; - gboolean all_week, round_up_end = FALSE, round_down_start = FALSE; - - if (event->button.button == 4) - e_calendar_item_set_first_month (calitem, calitem->year, - calitem->month - 1); - else if (event->button.button == 5) - e_calendar_item_set_first_month (calitem, calitem->year, - calitem->month + 1); - - if (!e_calendar_item_convert_position_to_day (calitem, - event->button.x, - event->button.y, - TRUE, - &month_offset, &day, - &all_week)) - return FALSE; - - if (event->button.button == 3 && day == -1 - && e_calendar_item_get_display_popup (calitem)) { - e_calendar_item_show_popup_menu (calitem, - (GdkEventButton*) event, - month_offset); - return TRUE; - } - - if (event->button.button != 1 || day == -1) - return FALSE; - - if (calitem->max_days_selected < 1) - return TRUE; - - if (gnome_canvas_item_grab (GNOME_CANVAS_ITEM (calitem), - GDK_POINTER_MOTION_MASK - | GDK_BUTTON_RELEASE_MASK, - NULL, event->button.time) != 0) - return FALSE; - - calitem->selection_set = TRUE; - calitem->selection_start_month_offset = month_offset; - calitem->selection_start_day = day; - calitem->selection_end_month_offset = month_offset; - calitem->selection_end_day = day; - - calitem->selection_real_start_month_offset = month_offset; - calitem->selection_real_start_day = day; - - calitem->selection_from_full_week = FALSE; - calitem->selecting = TRUE; - calitem->selection_dragging_end = TRUE; - - if (all_week) { - calitem->selection_from_full_week = TRUE; - round_up_end = TRUE; - } - - if (calitem->days_to_start_week_selection == 1) { - round_down_start = TRUE; - round_up_end = TRUE; - } - - /* Don't round up or down if we can't select a week or more. */ - if (calitem->max_days_selected < 7) { - round_down_start = FALSE; - round_up_end = FALSE; - } - - if (round_up_end) - e_calendar_item_round_up_selection (calitem, &calitem->selection_end_month_offset, &calitem->selection_end_day); - - if (round_down_start) - e_calendar_item_round_down_selection (calitem, &calitem->selection_start_month_offset, &calitem->selection_start_day); - - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (calitem)); - - return TRUE; -} - - -static gboolean -e_calendar_item_button_release (ECalendarItem *calitem, - GdkEvent *event) -{ - if (!calitem->selecting) - return FALSE; - - gnome_canvas_item_ungrab (GNOME_CANVAS_ITEM (calitem), - event->button.time); - - calitem->selecting = FALSE; - - /* If the user selects the grayed dates before the first month or - after the last month, we move backwards or forwards one month. - The set_month() call should take care of updating the selection. */ - if (calitem->selection_end_month_offset == -1) - e_calendar_item_set_first_month (calitem, calitem->year, - calitem->month - 1); - else if (calitem->selection_start_month_offset == calitem->rows * calitem->cols) - e_calendar_item_set_first_month (calitem, calitem->year, - calitem->month + 1); - - calitem->selection_changed = TRUE; - e_calendar_item_queue_signal_emission (calitem); - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (calitem)); - - return FALSE; -} - - -static gboolean -e_calendar_item_motion (ECalendarItem *calitem, - GdkEvent *event) -{ - gint start_month, start_day, end_month, end_day, month_offset, day; - gint tmp_month, tmp_day, days_in_selection; - gboolean all_week, round_up_end = FALSE, round_down_start = FALSE; - - if (!calitem->selecting) - return FALSE; - - if (!e_calendar_item_convert_position_to_day (calitem, - event->button.x, - event->button.y, - TRUE, - &month_offset, &day, - &all_week)) - return FALSE; - - if (day == -1) - return FALSE; - - if (calitem->selection_dragging_end) { - start_month = calitem->selection_real_start_month_offset; - start_day = calitem->selection_real_start_day; - end_month = month_offset; - end_day = day; - } else { - start_month = month_offset; - start_day = day; - end_month = calitem->selection_real_start_month_offset; - end_day = calitem->selection_real_start_day; - } - - if (start_month > end_month || (start_month == end_month - && start_day > end_day)) { - tmp_month = start_month; - tmp_day = start_day; - start_month = end_month; - start_day = end_day; - end_month = tmp_month; - end_day = tmp_day; - - calitem->selection_dragging_end = !calitem->selection_dragging_end; - } - - if (calitem->days_to_start_week_selection > 0) { - days_in_selection = e_calendar_item_get_inclusive_days (calitem, start_month, start_day, end_month, end_day); - if (days_in_selection >= calitem->days_to_start_week_selection) { - round_down_start = TRUE; - round_up_end = TRUE; - } - } - - /* If we are over a week number and we are dragging the end of the - selection, we round up to the end of this week. */ - if (all_week && calitem->selection_dragging_end) - round_up_end = TRUE; - - /* If the selection was started from a week number and we are dragging - the start of the selection, we need to round up the end to include - all of the original week selected. */ - if (calitem->selection_from_full_week - && !calitem->selection_dragging_end) - round_up_end = TRUE; - - /* Don't round up or down if we can't select a week or more. */ - if (calitem->max_days_selected < 7) { - round_down_start = FALSE; - round_up_end = FALSE; - } - - if (round_up_end) - e_calendar_item_round_up_selection (calitem, &end_month, - &end_day); - if (round_down_start) - e_calendar_item_round_down_selection (calitem, &start_month, - &start_day); - - - /* Check we don't go over the maximum number of days to select. */ - if (calitem->selection_dragging_end) { - e_calendar_item_check_selection_end (calitem, - start_month, - start_day, - &end_month, - &end_day); - } else { - e_calendar_item_check_selection_start (calitem, - &start_month, - &start_day, - end_month, - end_day); - } - - if (start_month == calitem->selection_start_month_offset - && start_day == calitem->selection_start_day - && end_month == calitem->selection_end_month_offset - && end_day == calitem->selection_end_day) - return FALSE; - - calitem->selection_start_month_offset = start_month; - calitem->selection_start_day = start_day; - calitem->selection_end_month_offset = end_month; - calitem->selection_end_day = end_day; - - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (calitem)); - - return TRUE; -} - - -static void -e_calendar_item_check_selection_end (ECalendarItem *calitem, - gint start_month, - gint start_day, - gint *end_month, - gint *end_day) -{ - gint year, month, max_month, max_day, days_in_month; - - if (calitem->max_days_selected <= 0) - return; - - year = calitem->year; - month = calitem->month + start_month; - e_calendar_item_normalize_date (calitem, &year, &month); - - max_month = start_month; - max_day = start_day + calitem->max_days_selected - 1; - - for (;;) { - days_in_month = DAYS_IN_MONTH (year, month); - if (max_day <= days_in_month) - break; - max_month++; - month++; - if (month == 12) { - year++; - month = 0; - } - max_day -= days_in_month; - } - - if (*end_month > max_month) { - *end_month = max_month; - *end_day = max_day; - } else if (*end_month == max_month && *end_day > max_day) { - *end_day = max_day; - } -} - - -static void -e_calendar_item_check_selection_start (ECalendarItem *calitem, - gint *start_month, - gint *start_day, - gint end_month, - gint end_day) -{ - gint year, month, min_month, min_day, days_in_month; - - if (calitem->max_days_selected <= 0) - return; - - year = calitem->year; - month = calitem->month + end_month; - e_calendar_item_normalize_date (calitem, &year, &month); - - min_month = end_month; - min_day = end_day - calitem->max_days_selected + 1; - - while (min_day <= 0) { - min_month--; - month--; - if (month == -1) { - year--; - month = 11; - } - days_in_month = DAYS_IN_MONTH (year, month); - min_day += days_in_month; - } - - if (*start_month < min_month) { - *start_month = min_month; - *start_day = min_day; - } else if (*start_month == min_month && *start_day < min_day) { - *start_day = min_day; - } -} - - -/* Converts a position within the item to a month & day. - The month returned is 0 for the top-left month displayed. - If the position is over the month heading -1 is returned for the day. - If the position is over a week number the first day of the week is returned - and entire_week is set to TRUE. - It returns FALSE if the position is completely outside all months. */ -static gboolean -e_calendar_item_convert_position_to_day (ECalendarItem *calitem, - gint event_x, - gint event_y, - gboolean round_empty_positions, - gint *month_offset, - gint *day, - gboolean *entire_week) -{ - GnomeCanvasItem *item; - GtkWidget *widget; - GtkStyle *style; - gint xthickness, ythickness, char_height; - gint x, y, row, col, cells_x, cells_y, day_row, day_col; - gint first_day_offset, days_in_month, days_in_prev_month; - gint week_num_x1, week_num_x2; - - item = GNOME_CANVAS_ITEM (calitem); - widget = GTK_WIDGET (item->canvas); - style = widget->style; - char_height = style->font->ascent + style->font->descent; - xthickness = style->klass->xthickness; - ythickness = style->klass->ythickness; - - *entire_week = FALSE; - - x = event_x - xthickness - calitem->x_offset; - y = event_y - ythickness; - - if (x < 0 || y < 0) - return FALSE; - - row = y / calitem->month_height; - col = x / calitem->month_width; - - if (row >= calitem->rows || col >= calitem->cols) - return FALSE; - - *month_offset = row * calitem->cols + col; - - x = x % calitem->month_width; - y = y % calitem->month_height; - - if (y < ythickness * 2 + E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME - + char_height + E_CALENDAR_ITEM_YPAD_BELOW_MONTH_NAME) { - *day = -1; - return TRUE; - } - - cells_y = ythickness * 2 + E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME - + char_height + E_CALENDAR_ITEM_YPAD_BELOW_MONTH_NAME - + E_CALENDAR_ITEM_YPAD_ABOVE_DAY_LETTERS + calitem->month_tpad - + char_height + E_CALENDAR_ITEM_YPAD_BELOW_DAY_LETTERS + 1 - + E_CALENDAR_ITEM_YPAD_ABOVE_CELLS; - y -= cells_y; - if (y < 0) - return FALSE; - day_row = y / calitem->cell_height; - if (day_row >= E_CALENDAR_ROWS_PER_MONTH) - return FALSE; - - week_num_x1 = E_CALENDAR_ITEM_XPAD_BEFORE_WEEK_NUMBERS + calitem->month_lpad; - - if (calitem->show_week_numbers) { - week_num_x2 = week_num_x1 - + calitem->max_week_number_digit_width * 2; - if (x >= week_num_x1 && x < week_num_x2) - *entire_week = TRUE; - cells_x = week_num_x2 + E_CALENDAR_ITEM_XPAD_AFTER_WEEK_NUMBERS + 1; - } else { - cells_x = week_num_x1; - } - - if (*entire_week) { - day_col = 0; - } else { - cells_x += E_CALENDAR_ITEM_XPAD_BEFORE_CELLS; - x -= cells_x; - if (x < 0) - return FALSE; - day_col = x / calitem->cell_width; - if (day_col >= E_CALENDAR_COLS_PER_MONTH) - return FALSE; - } - - *day = day_row * E_CALENDAR_COLS_PER_MONTH + day_col; - - e_calendar_item_get_month_info (calitem, row, col, &first_day_offset, - &days_in_month, &days_in_prev_month); - if (*day < first_day_offset) { - if (*entire_week || (row == 0 && col == 0)) { - (*month_offset)--; - *day = days_in_prev_month + 1 - first_day_offset - + *day; - return TRUE; - } else if (round_empty_positions) { - *day = first_day_offset; - } else { - return FALSE; - } - } - - *day -= first_day_offset - 1; - - if (*day > days_in_month) { - if (row == calitem->rows - 1 && col == calitem->cols - 1) { - (*month_offset)++; - *day -= days_in_month; - return TRUE; - } else if (round_empty_positions) { - *day = days_in_month; - } else { - return FALSE; - } - } - - return TRUE; -} - - -static void -e_calendar_item_get_month_info (ECalendarItem *calitem, - gint row, - gint col, - gint *first_day_offset, - gint *days_in_month, - gint *days_in_prev_month) -{ - gint year, month, start_weekday, first_day_of_month; - struct tm tmp_tm = { 0 }; - - month = calitem->month + row * calitem->cols + col; - year = calitem->year + month / 12; - month = month % 12; - - *days_in_month = DAYS_IN_MONTH (year, month); - if (month == 0) - *days_in_prev_month = DAYS_IN_MONTH (year - 1, 11); - else - *days_in_prev_month = DAYS_IN_MONTH (year, month - 1); - - tmp_tm.tm_year = year - 1900; - tmp_tm.tm_mon = month; - tmp_tm.tm_mday = 1; - tmp_tm.tm_isdst = -1; - mktime (&tmp_tm); - - /* Convert to 0 (Monday) to 6 (Sunday). */ - start_weekday = (tmp_tm.tm_wday + 6) % 7; - - first_day_of_month = (start_weekday + 7 - calitem->week_start_day) % 7; - - if (row == 0 && col == 0 && first_day_of_month == 0) - *first_day_offset = 7; - else - *first_day_offset = first_day_of_month; -} - - -void -e_calendar_item_get_first_month(ECalendarItem *calitem, - gint *year, - gint *month) -{ - *year = calitem->year; - *month = calitem->month; -} - - -/* This also handles values of month < 0 or > 11 by updating the year. */ -void -e_calendar_item_set_first_month(ECalendarItem *calitem, - gint year, - gint month) -{ - gint new_year, new_month, months_diff, num_months; - gint old_days_in_selection, new_days_in_selection; - - new_year = year; - new_month = month; - e_calendar_item_normalize_date (calitem, &new_year, &new_month); - - if (calitem->year == new_year && calitem->month == new_month) - return; - - /* Update the selection. */ - num_months = calitem->rows * calitem->cols; - months_diff = (new_year - calitem->year) * 12 - + new_month - calitem->month; - - if (calitem->selection_set) { - if (!calitem->move_selection_when_moving - || (calitem->selection_start_month_offset - months_diff >= 0 - && calitem->selection_end_month_offset - months_diff < num_months)) { - calitem->selection_start_month_offset -= months_diff; - calitem->selection_end_month_offset -= months_diff; - calitem->selection_real_start_month_offset -= months_diff; - - calitem->year = new_year; - calitem->month = new_month; - } else { - old_days_in_selection = e_calendar_item_get_inclusive_days (calitem, calitem->selection_start_month_offset, calitem->selection_start_day, calitem->selection_end_month_offset, calitem->selection_end_day); - - /* Make sure the selection will be displayed. */ - if (calitem->selection_start_month_offset < 0 - || calitem->selection_start_month_offset >= num_months) { - calitem->selection_end_month_offset -= calitem->selection_start_month_offset; - calitem->selection_start_month_offset = 0; - } - - /* We want to ensure that the same number of days are - selected after we have moved the selection. */ - calitem->year = new_year; - calitem->month = new_month; - - e_calendar_item_ensure_valid_day (calitem, &calitem->selection_start_month_offset, &calitem->selection_start_day); - e_calendar_item_ensure_valid_day (calitem, &calitem->selection_end_month_offset, &calitem->selection_end_day); - - if (calitem->round_selection_when_moving) { - e_calendar_item_round_down_selection (calitem, &calitem->selection_start_month_offset, &calitem->selection_start_day); - } - - new_days_in_selection = e_calendar_item_get_inclusive_days (calitem, calitem->selection_start_month_offset, calitem->selection_start_day, calitem->selection_end_month_offset, calitem->selection_end_day); - - if (old_days_in_selection != new_days_in_selection) - e_calendar_item_add_days_to_selection (calitem, old_days_in_selection - new_days_in_selection); - - /* Flag that we need to emit the "selection_changed" - signal. We don't want to emit it here since setting - the "year" and "month" args would result in 2 - signals emitted. */ - calitem->selection_changed = TRUE; - } - } else { - calitem->year = new_year; - calitem->month = new_month; - } - - e_calendar_item_date_range_changed (calitem); - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (calitem)); -} - -/* Get the maximum number of days selectable */ -gint -e_calendar_item_get_max_days_sel (ECalendarItem *calitem) -{ - return calitem->max_days_selected; -} - - -/* Set the maximum number of days selectable */ -void -e_calendar_item_set_max_days_sel (ECalendarItem *calitem, - gint days) -{ - calitem->max_days_selected = MAX (0, days); - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (calitem)); -} - - -/* Get the maximum number of days before whole weeks are selected */ -gint -e_calendar_item_get_days_start_week_sel(ECalendarItem *calitem) -{ - return calitem->days_to_start_week_selection; -} - - -/* Set the maximum number of days before whole weeks are selected */ -void -e_calendar_item_set_days_start_week_sel(ECalendarItem *calitem, - gint days) -{ - calitem->days_to_start_week_selection = days; -} - -gboolean -e_calendar_item_get_display_popup (ECalendarItem *calitem) -{ - return calitem->display_popup; -} - - -void -e_calendar_item_set_display_popup (ECalendarItem *calitem, - gboolean display) -{ - calitem->display_popup = display; -} - - -/* This will make sure that the given year & month are valid, i.e. if month - is < 0 or > 11 the year and month will be updated accordingly. */ -static void -e_calendar_item_normalize_date (ECalendarItem *calitem, - gint *year, - gint *month) -{ - if (*month >= 0) { - *year += *month / 12; - *month = *month % 12; - } else { - *year += *month / 12 - 1; - *month = *month % 12; - if (*month != 0) - *month += 12; - } -} - - -/* Adds or subtracts days from the selection. It is used when we switch months - and the selection extends past the end of a month but we want to keep the - number of days selected the same. days should not be more than 30. */ -static void -e_calendar_item_add_days_to_selection (ECalendarItem *calitem, - gint days) -{ - gint year, month, days_in_month; - - year = calitem->year; - month = calitem->month + calitem->selection_end_month_offset; - e_calendar_item_normalize_date (calitem, &year, &month); - - calitem->selection_end_day += days; - if (calitem->selection_end_day <= 0) { - month--; - e_calendar_item_normalize_date (calitem, &year, &month); - calitem->selection_end_month_offset--; - calitem->selection_end_day += DAYS_IN_MONTH (year, month); - } else { - days_in_month = DAYS_IN_MONTH (year, month); - if (calitem->selection_end_day > days_in_month) { - calitem->selection_end_month_offset++; - calitem->selection_end_day -= days_in_month; - } - } -} - - -/* Gets the range of dates actually shown. Months are 0 to 11. - This also includes the last days of the previous month and the first days - of the following month, which are normally shown in gray. - It returns FALSE if no dates are currently shown. */ -gboolean -e_calendar_item_get_date_range (ECalendarItem *calitem, - gint *start_year, - gint *start_month, - gint *start_day, - gint *end_year, - gint *end_month, - gint *end_day) -{ - gint first_day_offset, days_in_month, days_in_prev_month; - - if (calitem->rows == 0 || calitem->cols == 0) - return FALSE; - - /* Calculate the first day shown. This will be one of the greyed-out - days before the first full month begins. */ - e_calendar_item_get_month_info (calitem, 0, 0, &first_day_offset, - &days_in_month, &days_in_prev_month); - *start_year = calitem->year; - *start_month = calitem->month - 1; - if (*start_month == -1) { - (*start_year)--; - *start_month = 11; - } - *start_day = days_in_prev_month + 1 - first_day_offset; - - - /* Calculate the last day shown. This will be one of the greyed-out - days after the last full month ends. */ - e_calendar_item_get_month_info (calitem, calitem->rows - 1, - calitem->cols - 1, &first_day_offset, - &days_in_month, &days_in_prev_month); - *end_month = calitem->month + calitem->rows * calitem->cols; - *end_year = calitem->year + *end_month / 12; - *end_month %= 12; - *end_day = E_CALENDAR_ROWS_PER_MONTH * E_CALENDAR_COLS_PER_MONTH - - first_day_offset - days_in_month; - - return TRUE; -} - - -/* Simple way to mark days so they appear bold. - A more flexible interface may be added later. */ -void -e_calendar_item_clear_marks (ECalendarItem *calitem) -{ - GnomeCanvasItem *item; - - item = GNOME_CANVAS_ITEM (calitem); - - g_free (calitem->styles); - calitem->styles = NULL; - - gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, - item->x2, item->y2); -} - - -void -e_calendar_item_mark_day (ECalendarItem *calitem, - gint year, - gint month, - gint day, - guint8 day_style) -{ - gint month_offset; - - month_offset = (year - calitem->year) * 12 + month - calitem->month; - if (month_offset < -1 || month_offset > calitem->rows * calitem->cols) - return; - - if (!calitem->styles) - calitem->styles = g_new0 (guint8, (calitem->rows * calitem->cols + 2) * 32); - - calitem->styles[(month_offset + 1) * 32 + day] = day_style; -} - - -void -e_calendar_item_mark_days (ECalendarItem *calitem, - gint start_year, - gint start_month, - gint start_day, - gint end_year, - gint end_month, - gint end_day, - guint8 day_style) -{ - gint month_offset, end_month_offset, day; - - month_offset = (start_year - calitem->year) * 12 + start_month - - calitem->month; - day = start_day; - if (month_offset > calitem->rows * calitem->cols) - return; - if (month_offset < -1) { - month_offset = -1; - day = 1; - } - - end_month_offset = (end_year - calitem->year) * 12 + end_month - - calitem->month; - if (end_month_offset < -1) - return; - if (end_month_offset > calitem->rows * calitem->cols) { - end_month_offset = calitem->rows * calitem->cols; - end_day = 31; - } - - if (month_offset > end_month_offset) - return; - - if (!calitem->styles) - calitem->styles = g_new0 (guint8, (calitem->rows * calitem->cols + 2) * 32); - - for (;;) { - if (month_offset == end_month_offset && day > end_day) - break; - - calitem->styles[(month_offset + 1) * 32 + day] = day_style; - - day++; - if (day == 32) { - month_offset++; - day = 1; - if (month_offset > end_month_offset) - break; - } - } -} - - -/* Rounds up the given day to the end of the week. */ -static void -e_calendar_item_round_up_selection (ECalendarItem *calitem, - gint *month_offset, - gint *day) -{ - gint year, month, weekday, days, days_in_month; - struct tm tmp_tm = { 0 }; - - year = calitem->year; - month = calitem->month + *month_offset; - e_calendar_item_normalize_date (calitem, &year, &month); - - tmp_tm.tm_year = year - 1900; - tmp_tm.tm_mon = month; - tmp_tm.tm_mday = *day; - tmp_tm.tm_isdst = -1; - mktime (&tmp_tm); - - /* Convert to 0 (Monday) to 6 (Sunday). */ - weekday = (tmp_tm.tm_wday + 6) % 7; - - /* Calculate how many days to the end of the row. */ - days = (calitem->week_start_day + 6 - weekday) % 7; - - *day += days; - days_in_month = DAYS_IN_MONTH (year, month); - if (*day > days_in_month) { - (*month_offset)++; - *day -= days_in_month; - } -} - - -/* Rounds down the given day to the start of the week. */ -static void -e_calendar_item_round_down_selection (ECalendarItem *calitem, - gint *month_offset, - gint *day) -{ - gint year, month, weekday, days, days_in_month; - struct tm tmp_tm = { 0 }; - - year = calitem->year; - month = calitem->month + *month_offset; - e_calendar_item_normalize_date (calitem, &year, &month); - - tmp_tm.tm_year = year - 1900; - tmp_tm.tm_mon = month; - tmp_tm.tm_mday = *day; - tmp_tm.tm_isdst = -1; - mktime (&tmp_tm); - - /* Convert to 0 (Monday) to 6 (Sunday). */ - weekday = (tmp_tm.tm_wday + 6) % 7; - - /* Calculate how many days to the start of the row. */ - days = (weekday + 7 - calitem->week_start_day) % 7; - - *day -= days; - if (*day <= 0) { - month--; - if (month == -1) { - year--; - month = 11; - } - days_in_month = DAYS_IN_MONTH (year, month); - (*month_offset)--; - *day += days_in_month; - } -} - - -static gint -e_calendar_item_get_inclusive_days (ECalendarItem *calitem, - gint start_month_offset, - gint start_day, - gint end_month_offset, - gint end_day) -{ - gint start_year, start_month, end_year, end_month, days = 0; - - start_year = calitem->year; - start_month = calitem->month + start_month_offset; - e_calendar_item_normalize_date (calitem, &start_year, &start_month); - - end_year = calitem->year; - end_month = calitem->month + end_month_offset; - e_calendar_item_normalize_date (calitem, &end_year, &end_month); - - while (start_year < end_year || start_month < end_month) { - days += DAYS_IN_MONTH (start_year, start_month); - start_month++; - if (start_month == 12) { - start_year++; - start_month = 0; - } - } - - days += end_day - start_day + 1; - - return days; -} - - -/* If the day is off the end of the month it is set to the last day of the - month. */ -static void -e_calendar_item_ensure_valid_day (ECalendarItem *calitem, - gint *month_offset, - gint *day) -{ - gint year, month, days_in_month; - - year = calitem->year; - month = calitem->month + *month_offset; - e_calendar_item_normalize_date (calitem, &year, &month); - - days_in_month = DAYS_IN_MONTH (year, month); - if (*day > days_in_month) - *day = days_in_month; -} - - -gboolean -e_calendar_item_get_selection (ECalendarItem *calitem, - GDate *start_date, - GDate *end_date) -{ - gint start_year, start_month, start_day; - gint end_year, end_month, end_day; - - g_date_clear (start_date, 1); - g_date_clear (end_date, 1); - - if (!calitem->selection_set) - return FALSE; - - start_year = calitem->year; - start_month = calitem->month + calitem->selection_start_month_offset; - e_calendar_item_normalize_date (calitem, &start_year, &start_month); - start_day = calitem->selection_start_day; - - end_year = calitem->year; - end_month = calitem->month + calitem->selection_end_month_offset; - e_calendar_item_normalize_date (calitem, &end_year, &end_month); - end_day = calitem->selection_end_day; - - g_date_set_dmy (start_date, start_day, start_month + 1, start_year); - g_date_set_dmy (end_date, end_day, end_month + 1, end_year); - - return TRUE; -} - - -void -e_calendar_item_set_selection (ECalendarItem *calitem, - GDate *start_date, - GDate *end_date) -{ - gint start_year, start_month, start_day; - gint end_year, end_month, end_day; - gint new_start_month_offset, new_start_day; - gint new_end_month_offset, new_end_day; - gboolean need_update; - - g_return_if_fail (E_IS_CALENDAR_ITEM (calitem)); - - /* If the user is in the middle of a selection, we must abort it. */ - if (calitem->selecting) { - gnome_canvas_item_ungrab (GNOME_CANVAS_ITEM (calitem), - GDK_CURRENT_TIME); - calitem->selecting = FALSE; - } - - /* If start_date is NULL, we clear the selection without changing the - month shown. */ - if (start_date == NULL) { - calitem->selection_set = FALSE; - calitem->selection_changed = TRUE; - e_calendar_item_queue_signal_emission (calitem); - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (calitem)); - return; - } - - if (end_date == NULL) - end_date = start_date; - - g_return_if_fail (g_date_compare (start_date, end_date) <= 0); - - start_year = g_date_year (start_date); - start_month = g_date_month (start_date) - 1; - start_day = g_date_day (start_date); - end_year = g_date_year (end_date); - end_month = g_date_month (end_date) - 1; - end_day = g_date_day (end_date); - - need_update = e_calendar_item_ensure_days_visible (calitem, - start_year, - start_month, - start_day, - end_year, - end_month, - end_day); - - new_start_month_offset = (start_year - calitem->year) * 12 - + start_month - calitem->month; - new_start_day = start_day; - - /* This may go outside the visible months, but we don't care. */ - new_end_month_offset = (end_year - calitem->year) * 12 - + end_month - calitem->month; - new_end_day = end_day; - - - if (!calitem->selection_set - || calitem->selection_start_month_offset != new_start_month_offset - || calitem->selection_start_day != new_start_day - || calitem->selection_end_month_offset != new_end_month_offset - || calitem->selection_end_day != new_end_day) { - need_update = TRUE; - calitem->selection_changed = TRUE; - e_calendar_item_queue_signal_emission (calitem); - calitem->selection_set = TRUE; - calitem->selection_start_month_offset = new_start_month_offset; - calitem->selection_start_day = new_start_day; - calitem->selection_end_month_offset = new_end_month_offset; - calitem->selection_end_day = new_end_day; - - calitem->selection_real_start_month_offset = new_start_month_offset; - calitem->selection_real_start_day = new_start_day; - calitem->selection_from_full_week = FALSE; - } - - if (need_update) - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (calitem)); -} - - -/* This tries to ensure that the given time range is visible. If the range - given is longer than we can show, only the start of it will be visible. - Note that this will not update the selection. That should be done somewhere - else. It returns TRUE if the visible range has been changed. */ -static gboolean -e_calendar_item_ensure_days_visible (ECalendarItem *calitem, - gint start_year, - gint start_month, - gint start_day, - gint end_year, - gint end_month, - gint end_day) -{ - gint current_end_year, current_end_month; - gint months_shown, months; - gint first_day_offset, days_in_month, days_in_prev_month; - gboolean need_update = FALSE; - - months_shown = calitem->rows * calitem->cols; - months = (end_year - start_year) * 12 + end_month - start_month; - - /* Calculate the range of months currently displayed. */ - current_end_year = calitem->year; - current_end_month = calitem->month + months_shown - 1; - e_calendar_item_normalize_date (calitem, ¤t_end_year, - ¤t_end_month); - - /* Try to ensure that the end month is shown. */ - if (end_year > current_end_year - || (end_year == current_end_year - && end_month > current_end_month)) { - need_update = TRUE; - calitem->year = end_year; - calitem->month = end_month - months_shown + 1; - e_calendar_item_normalize_date (calitem, &calitem->year, - &calitem->month); - } - - /* Now try to ensure that the start month is shown. We do this after - the end month so that the start month will always be shown. */ - if (start_year < calitem->year - || (start_year == calitem->year - && start_month < calitem->month)) { - need_update = TRUE; - - /* First we see if the start of the selection will fit in the - leftover days of the month before the first one shown. */ - calitem->year = start_year; - calitem->month = start_month + 1; - e_calendar_item_normalize_date (calitem, &calitem->year, - &calitem->month); - - e_calendar_item_get_month_info (calitem, 0, 0, - &first_day_offset, - &days_in_month, - &days_in_prev_month); - - if (start_day <= days_in_prev_month - first_day_offset) { - calitem->year = start_year; - calitem->month = start_month; - } - } - - if (need_update) - e_calendar_item_date_range_changed (calitem); - - return need_update; -} - - -static void -e_calendar_item_show_popup_menu (ECalendarItem *calitem, - GdkEventButton *event, - gint month_offset) -{ - GtkWidget *menu, *submenu, *menuitem; - gint year, month; - gchar buffer[64]; - struct tm tmp_tm; - - menu = gtk_menu_new (); - - for (year = calitem->year - 2; year <= calitem->year + 2; year++) { - g_snprintf (buffer, 64, "%i", year); - menuitem = gtk_menu_item_new_with_label (buffer); - gtk_widget_show (menuitem); - gtk_container_add (GTK_CONTAINER (menu), menuitem); - - submenu = gtk_menu_new (); - gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu); - - gtk_object_set_data (GTK_OBJECT (submenu), "year", - GINT_TO_POINTER (year)); - gtk_object_set_data (GTK_OBJECT (submenu), "month_offset", - GINT_TO_POINTER (month_offset)); - - for (month = 0; month < 12; month++) { - memset (&tmp_tm, 0, sizeof (tmp_tm)); - tmp_tm.tm_year = year - 1900; - tmp_tm.tm_mon = month; - tmp_tm.tm_mday = 1; - tmp_tm.tm_isdst = -1; - mktime (&tmp_tm); - /* This is a strftime() format. %B = Month name, %Y = Year. */ - strftime (buffer, sizeof (buffer), _("%B %Y"), &tmp_tm); - - menuitem = gtk_menu_item_new_with_label (buffer); - gtk_widget_show (menuitem); - gtk_container_add (GTK_CONTAINER (submenu), menuitem); - - gtk_object_set_data (GTK_OBJECT (menuitem), "month", - GINT_TO_POINTER (month)); - - gtk_signal_connect (GTK_OBJECT (menuitem), "activate", - GTK_SIGNAL_FUNC (e_calendar_item_on_menu_item_activate), calitem); - } - } - - /* Run the menu modal so we can destroy it after. */ - gtk_signal_connect (GTK_OBJECT (menu), "deactivate", - GTK_SIGNAL_FUNC (gtk_main_quit), NULL); - gtk_menu_popup (GTK_MENU (menu), NULL, NULL, - e_calendar_item_position_menu, calitem, - event->button, event->time); - gtk_grab_add (menu); - gtk_main (); - gtk_grab_remove (menu); - gtk_widget_destroy (menu); -} - - -static void -e_calendar_item_on_menu_item_activate (GtkWidget *menuitem, - ECalendarItem *calitem) -{ - gint year, month_offset, month; - - year = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (menuitem->parent), "year")); - month_offset = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (menuitem->parent), "month_offset")); - month = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (menuitem), "month")); - - month -= month_offset; - e_calendar_item_normalize_date (calitem, &year, &month); - e_calendar_item_set_first_month (calitem, year, month); -} - - -static void -e_calendar_item_position_menu (GtkMenu *menu, - gint *x, - gint *y, - gpointer user_data) -{ - GtkRequisition requisition; - gint screen_width, screen_height; - - gtk_widget_get_child_requisition (GTK_WIDGET (menu), &requisition); - - *x -= 2; - *y -= requisition.height / 2; - - screen_width = gdk_screen_width (); - screen_height = gdk_screen_height (); - - *x = CLAMP (*x, 0, screen_width - requisition.width); - *y = CLAMP (*y, 0, screen_height - requisition.height); -} - - -/* Sets the function to call to get the colors to use for a particular day. */ -void -e_calendar_item_set_style_callback (ECalendarItem *calitem, - ECalendarItemStyleCallback cb, - gpointer data, - GtkDestroyNotify destroy) -{ - g_return_if_fail (E_IS_CALENDAR_ITEM (calitem)); - - if (calitem->style_callback_data) - (*calitem->style_callback_destroy) (calitem->style_callback_data); - - calitem->style_callback = cb; - calitem->style_callback_data = data; - calitem->style_callback_destroy = destroy; -} - - -static void -e_calendar_item_date_range_changed (ECalendarItem *calitem) -{ - g_free (calitem->styles); - calitem->styles = NULL; - calitem->date_range_changed = TRUE; - e_calendar_item_queue_signal_emission (calitem); -} - - -static void -e_calendar_item_queue_signal_emission (ECalendarItem *calitem) -{ - if (calitem->signal_emission_idle_id == 0) { - calitem->signal_emission_idle_id = g_idle_add_full (G_PRIORITY_HIGH, e_calendar_item_signal_emission_idle_cb, calitem, NULL); - } -} - - -static gboolean -e_calendar_item_signal_emission_idle_cb (gpointer data) -{ - ECalendarItem *calitem; - - g_return_val_if_fail (E_IS_CALENDAR_ITEM (data), FALSE); - - GDK_THREADS_ENTER (); - - calitem = E_CALENDAR_ITEM (data); - - calitem->signal_emission_idle_id = 0; - - if (calitem->date_range_changed) { - gtk_signal_emit (GTK_OBJECT (calitem), - e_calendar_item_signals[DATE_RANGE_CHANGED]); - calitem->date_range_changed = FALSE; - } - - if (calitem->selection_changed) { - gtk_signal_emit (GTK_OBJECT (calitem), - e_calendar_item_signals[SELECTION_CHANGED]); - calitem->selection_changed = FALSE; - } - - GDK_THREADS_LEAVE (); - return FALSE; -} - |