/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Author :
* Damon Chaplin <damon@ximian.com>
*
* Copyright 1999, Helix Code, Inc.
* Copyright 1999, Ximian, 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
*/
/*
* EDayViewTimeItem - canvas item which displays the times down the left of
* the EDayView.
*/
#include <config.h>
#include <glib.h>
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <gal/widgets/e-gui-utils.h>
#include "e-day-view-time-item.h"
#include "calendar-config.h"
/* The spacing between items in the time column. GRID_X_PAD is the space down
either side of the column, i.e. outside the main horizontal grid lines.
HOUR_L_PAD & HOUR_R_PAD are the spaces on the left & right side of the
big hour number (this is inside the horizontal grid lines).
MIN_X_PAD is the spacing either side of the minute number. The smaller
horizontal grid lines match with this.
60_MIN_X_PAD is the space either side of the HH:MM display used when
we are displaying 60 mins per row (inside the main grid lines).
LARGE_HOUR_Y_PAD is the offset of the large hour string from the top of the
row.
SMALL_FONT_Y_PAD is the offset of the small time/minute string from the top
of the row. */
#define E_DVTMI_TIME_GRID_X_PAD 4
#define E_DVTMI_HOUR_L_PAD 4
#define E_DVTMI_HOUR_R_PAD 2
#define E_DVTMI_MIN_X_PAD 2
#define E_DVTMI_60_MIN_X_PAD 4
#define E_DVTMI_LARGE_HOUR_Y_PAD 1
#define E_DVTMI_SMALL_FONT_Y_PAD 1
static void e_day_view_time_item_class_init (EDayViewTimeItemClass *class);
static void e_day_view_time_item_init (EDayViewTimeItem *dvtmitem);
static void e_day_view_time_item_set_arg (GtkObject *o,
GtkArg *arg,
guint arg_id);
static void e_day_view_time_item_update (GnomeCanvasItem *item,
double *affine,
ArtSVP *clip_path, int flags);
static void e_day_view_time_item_draw (GnomeCanvasItem *item,
GdkDrawable *drawable,
int x, int y,
int width, int height);
static double e_day_view_time_item_point (GnomeCanvasItem *item,
double x, double y,
int cx, int cy,
GnomeCanvasItem **actual_item);
static gint e_day_view_time_item_event (GnomeCanvasItem *item,
GdkEvent *event);
static void e_day_view_time_item_increment_time (gint *hour,
gint *minute,
gint mins_per_row);
static void e_day_view_time_item_show_popup_menu (EDayViewTimeItem *dvtmitem,
GdkEvent *event);
static void e_day_view_time_item_on_set_divisions (GtkWidget *item,
EDayViewTimeItem *dvtmitem);
static void e_day_view_time_item_on_button_press (EDayViewTimeItem *dvtmitem,
GdkEvent *event);
static void e_day_view_time_item_on_button_release (EDayViewTimeItem *dvtmitem,
GdkEvent *event);
static void e_day_view_time_item_on_motion_notify (EDayViewTimeItem *dvtmitem,
GdkEvent *event);
static gint e_day_view_time_item_convert_position_to_row (EDayViewTimeItem *dvtmitem,
gint y);
static GnomeCanvasItemClass *parent_class;
/* The arguments we take */
enum {
ARG_0,
ARG_DAY_VIEW
};
GtkType
e_day_view_time_item_get_type (void)
{
static GtkType e_day_view_time_item_type = 0;
if (!e_day_view_time_item_type) {
GtkTypeInfo e_day_view_time_item_info = {
"EDayViewTimeItem",
sizeof (EDayViewTimeItem),
sizeof (EDayViewTimeItemClass),
(GtkClassInitFunc) e_day_view_time_item_class_init,
(GtkObjectInitFunc) e_day_view_time_item_init,
NULL, /* reserved_1 */
NULL, /* reserved_2 */
(GtkClassInitFunc) NULL
};
e_day_view_time_item_type = gtk_type_unique (gnome_canvas_item_get_type (), &e_day_view_time_item_info);
}
return e_day_view_time_item_type;
}
static void
e_day_view_time_item_class_init (EDayViewTimeItemClass *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 ("EDayViewTimeItem::day_view",
GTK_TYPE_POINTER, GTK_ARG_WRITABLE,
ARG_DAY_VIEW);
object_class->set_arg = e_day_view_time_item_set_arg;
/* GnomeCanvasItem method overrides */
item_class->update = e_day_view_time_item_update;
item_class->draw = e_day_view_time_item_draw;
item_class->point = e_day_view_time_item_point;
item_class->event = e_day_view_time_item_event;
}
static void
e_day_view_time_item_init (EDayViewTimeItem *dvtmitem)
{
dvtmitem->dragging_selection = FALSE;
}
static void
e_day_view_time_item_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
GnomeCanvasItem *item;
EDayViewTimeItem *dvtmitem;
item = GNOME_CANVAS_ITEM (o);
dvtmitem = E_DAY_VIEW_TIME_ITEM (o);
switch (arg_id){
case ARG_DAY_VIEW:
dvtmitem->day_view = GTK_VALUE_POINTER (*arg);
break;
}
}
static void
e_day_view_time_item_update (GnomeCanvasItem *item,
double *affine,
ArtSVP *clip_path,
int flags)
{
if (GNOME_CANVAS_ITEM_CLASS (parent_class)->update)
(* GNOME_CANVAS_ITEM_CLASS (parent_class)->update) (item, affine, clip_path, flags);
/* The item covers the entire canvas area. */
item->x1 = 0;
item->y1 = 0;
item->x2 = INT_MAX;
item->y2 = INT_MAX;
}
/* Returns the minimum width needed for the column, by adding up all the
maximum widths of the strings. The string widths are all calculated in
the style_set handlers of EDayView and EDayViewTimeCanvas. */
gint
e_day_view_time_item_get_column_width (EDayViewTimeItem *dvtmitem)
{
EDayView *day_view;
GtkStyle *style;
GdkFont *small_font, *large_font;
gint digit, large_digit_width, max_large_digit_width = 0;
gint max_suffix_width, max_minute_or_suffix_width;
gint column_width_default, column_width_60_min_rows;
day_view = dvtmitem->day_view;
g_return_val_if_fail (day_view != NULL, 0);
style = GTK_WIDGET (day_view)->style;
g_return_val_if_fail (style != NULL, 0);
small_font = style->font;
g_return_val_if_fail (small_font != NULL, 0);
large_font = day_view->large_font;
g_return_val_if_fail (large_font != NULL, 0);
for (digit = '0'; digit <= '9'; digit++) {
large_digit_width = gdk_char_width (large_font, digit);
max_large_digit_width = MAX (max_large_digit_width,
large_digit_width);
}
/* Calculate the width of each time column, using the maximum of the
default format with large hour numbers, and the 60-min divisions
format which uses small text. */
max_suffix_width = MAX (day_view->am_string_width,
day_view->pm_string_width);
max_minute_or_suffix_width = MAX (max_suffix_width,
day_view->max_minute_width);
column_width_default = max_large_digit_width * 2
+ max_minute_or_suffix_width
+ E_DVTMI_MIN_X_PAD * 2
+ E_DVTMI_HOUR_L_PAD
+ E_DVTMI_HOUR_R_PAD
+ E_DVTMI_TIME_GRID_X_PAD * 2;
column_width_60_min_rows = day_view->max_small_hour_width
+ day_view->colon_width
+ max_minute_or_suffix_width
+ E_DVTMI_60_MIN_X_PAD * 2
+ E_DVTMI_TIME_GRID_X_PAD * 2;
dvtmitem->column_width = MAX (column_width_default,
column_width_60_min_rows);
return dvtmitem->column_width;
}
/*
* DRAWING ROUTINES - functions to paint the canvas item.
*/
static void
e_day_view_time_item_draw (GnomeCanvasItem *canvas_item,
GdkDrawable *drawable,
int x,
int y,
int width,
int height)
{
EDayView *day_view;
EDayViewTimeItem *dvtmitem;
GtkStyle *style;
GdkFont *small_font, *large_font;
GdkGC *fg_gc, *dark_gc;
gchar buffer[64], *suffix;
gint hour, display_hour, minute, row;
gint row_y, start_y, large_hour_y_offset, small_font_y_offset;
gint long_line_x1, long_line_x2, short_line_x1;
gint large_hour_x2, minute_x2;
gint hour_width, minute_width, suffix_width;
gint max_suffix_width, max_minute_or_suffix_width;
dvtmitem = E_DAY_VIEW_TIME_ITEM (canvas_item);
day_view = dvtmitem->day_view;
g_return_if_fail (day_view != NULL);
style = GTK_WIDGET (day_view)->style;
small_font = style->font;
large_font = day_view->large_font;
fg_gc = style->fg_gc[GTK_STATE_NORMAL];
dark_gc = style->dark_gc[GTK_STATE_NORMAL];
/* The start and end of the long horizontal line between hours. */
long_line_x1 = E_DVTMI_TIME_GRID_X_PAD - x;
long_line_x2 = dvtmitem->column_width - E_DVTMI_TIME_GRID_X_PAD - x;
if (day_view->mins_per_row == 60) {
/* The right edge of the complete time string in 60-min
divisions, e.g. "14:00" or "2 pm". */
minute_x2 = long_line_x2 - E_DVTMI_60_MIN_X_PAD;
/* These aren't used for 60-minute divisions, but we initialize
them to keep gcc happy. */
short_line_x1 = 0;
large_hour_x2 = 0;
} else {
max_suffix_width = MAX (day_view->am_string_width,
day_view->pm_string_width);
max_minute_or_suffix_width = MAX (max_suffix_width,
day_view->max_minute_width);
/* The start of the short horizontal line between the periods
within each hour. */
short_line_x1 = long_line_x2 - E_DVTMI_MIN_X_PAD * 2
- max_minute_or_suffix_width;
/* The right edge of the large hour string. */
large_hour_x2 = short_line_x1 - E_DVTMI_HOUR_R_PAD;
/* The right edge of the minute part of the time. */
minute_x2 = long_line_x2 - E_DVTMI_MIN_X_PAD;
}
/* Start with the first hour & minute shown in the EDayView. */
hour = day_view->first_hour_shown;
minute = day_view->first_minute_shown;
/* The offset of the large hour string from the top of the row. */
large_hour_y_offset = large_font->ascent + E_DVTMI_LARGE_HOUR_Y_PAD;
/* The offset of the small time/minute string from top of row. */
small_font_y_offset = small_font->ascent + E_DVTMI_SMALL_FONT_Y_PAD;
/* Calculate the minimum y position of the first row we need to draw.
This is normally one row height above the 0 position, but if we
are using the large font we may have to go back a bit further. */
start_y = 0 - MAX (day_view->row_height,
large_hour_y_offset + large_font->descent);
/* Step through each row, drawing the times and the horizontal lines
between them. */
for (row = 0, row_y = 0 - y;
row < day_view->rows && row_y < height;
row++, row_y += day_view->row_height) {
/* If the row is above the first row we want to draw just
increment the time and skip to the next row. */
if (row_y < start_y) {
e_day_view_time_item_increment_time (&hour, &minute,
day_view->mins_per_row);
continue;
}
/* Calculate the actual hour number to display. For 12-hour
format we convert 0-23 to 12-11am/12-11pm. */
e_day_view_convert_time_to_display (day_view, hour,
&display_hour,
&suffix, &suffix_width);
if (day_view->mins_per_row == 60) {
/* 60 minute intervals - draw a long horizontal line
between hours and display as one long string,
e.g. "14:00" or "2 pm". */
gdk_draw_line (drawable, dark_gc,
long_line_x1, row_y,
long_line_x2, row_y);
if (day_view->use_24_hour_format) {
g_snprintf (buffer, sizeof (buffer), "%i:%02i",
display_hour, minute);
} else {
g_snprintf (buffer, sizeof (buffer), "%i %s",
display_hour, suffix);
}
minute_width = gdk_string_width (small_font, buffer);
gdk_draw_string (drawable, small_font, fg_gc,
minute_x2 - minute_width,
row_y + small_font_y_offset,
buffer);
} else {
/* 5/10/15/30 minute intervals. */
if (minute == 0) {
/* On the hour - draw a long horizontal line
before the hour and display the hour in the
large font. */
gdk_draw_line (drawable, dark_gc,
long_line_x1, row_y,
long_line_x2, row_y);
g_snprintf (buffer, sizeof (buffer), "%i",
display_hour);
hour_width = gdk_string_width (large_font,
buffer);
gdk_draw_string (drawable, large_font, fg_gc,
large_hour_x2 - hour_width,
row_y + large_hour_y_offset,
buffer);
} else {
/* Within the hour - draw a short line before
the time. */
gdk_draw_line (drawable, dark_gc,
short_line_x1, row_y,
long_line_x2, row_y);
}
/* Normally we display the minute in each
interval, but when using 30-minute intervals
we don't display the '30'. */
if (day_view->mins_per_row != 30 || minute != 30) {
/* In 12-hour format we display 'am' or 'pm'
instead of '00'. */
if (minute == 0
&& !day_view->use_24_hour_format) {
strcpy (buffer, suffix);
} else {
g_snprintf (buffer, sizeof (buffer),
"%02i", minute);
}
minute_width = gdk_string_width (small_font,
buffer);
gdk_draw_string (drawable, small_font, fg_gc,
minute_x2 - minute_width,
row_y + small_font_y_offset,
buffer);
}
}
e_day_view_time_item_increment_time (&hour, &minute,
day_view->mins_per_row);
}
}
/* Increment the time by the 5/10/15/30/60 minute interval.
Note that mins_per_row is never > 60, so we never have to
worry about adding more than 60 minutes. */
static void
e_day_view_time_item_increment_time (gint *hour,
gint *minute,
gint mins_per_row)
{
*minute += mins_per_row;
if (*minute >= 60) {
*minute -= 60;
/* Currently we never wrap around to the next day, but
we may do if we display extra timezones. */
*hour = (*hour + 1) % 24;
}
}
static double
e_day_view_time_item_point (GnomeCanvasItem *item, double x, double y,
int cx, int cy,
GnomeCanvasItem **actual_item)
{
*actual_item = item;
return 0.0;
}
static gint
e_day_view_time_item_event (GnomeCanvasItem *item,
GdkEvent *event)
{
EDayViewTimeItem *dvtmitem;
dvtmitem = E_DAY_VIEW_TIME_ITEM (item);
switch (event->type) {
case GDK_BUTTON_PRESS:
if (event->button.button == 1) {
e_day_view_time_item_on_button_press (dvtmitem, event);
} else if (event->button.button == 3) {
e_day_view_time_item_show_popup_menu (dvtmitem, event);
return TRUE;
}
break;
case GDK_BUTTON_RELEASE:
if (event->button.button == 1)
e_day_view_time_item_on_button_release (dvtmitem,
event);
break;
case GDK_MOTION_NOTIFY:
e_day_view_time_item_on_motion_notify (dvtmitem, event);
break;
default:
break;
}
return FALSE;
}
static void
e_day_view_time_item_show_popup_menu (EDayViewTimeItem *dvtmitem,
GdkEvent *event)
{
static gint divisions[] = { 60, 30, 15, 10, 5 };
EDayView *day_view;
gint num_divisions = sizeof (divisions) / sizeof (divisions[0]);
GtkWidget *menu, *item;
gchar buffer[256];
GSList *group = NULL;
gint current_divisions, i;
day_view = dvtmitem->day_view;
g_return_if_fail (day_view != NULL);
current_divisions = e_day_view_get_mins_per_row (day_view);
menu = gtk_menu_new ();
/* Make sure the menu is destroyed when it disappears. */
e_auto_kill_popup_menu_on_hide (GTK_MENU (menu));
for (i = 0; i < num_divisions; i++) {
g_snprintf (buffer, sizeof (buffer),
_("%02i minute divisions"), divisions[i]);
item = gtk_radio_menu_item_new_with_label (group, buffer);
group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (item));
gtk_widget_show (item);
gtk_menu_append (GTK_MENU (menu), item);
if (current_divisions == divisions[i])
gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (item), TRUE);
gtk_object_set_data (GTK_OBJECT (item), "divisions",
GINT_TO_POINTER (divisions[i]));
gtk_signal_connect (GTK_OBJECT (item), "toggled",
e_day_view_time_item_on_set_divisions,
dvtmitem);
}
gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
event->button.button, event->button.time);
}
static void
e_day_view_time_item_on_set_divisions (GtkWidget *item,
EDayViewTimeItem *dvtmitem)
{
EDayView *day_view;
gint divisions;
day_view = dvtmitem->day_view;
g_return_if_fail (day_view != NULL);
if (!GTK_CHECK_MENU_ITEM (item)->active)
return;
divisions = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (item),
"divisions"));
e_day_view_set_mins_per_row (day_view, divisions);
calendar_config_set_time_divisions (divisions);
}
static void
e_day_view_time_item_on_button_press (EDayViewTimeItem *dvtmitem,
GdkEvent *event)
{
EDayView *day_view;
GnomeCanvas *canvas;
gint row;
day_view = dvtmitem->day_view;
g_return_if_fail (day_view != NULL);
canvas = GNOME_CANVAS_ITEM (dvtmitem)->canvas;
row = e_day_view_time_item_convert_position_to_row (dvtmitem,
event->button.y);
if (row == -1)
return;
if (!GTK_WIDGET_HAS_FOCUS (day_view))
gtk_widget_grab_focus (GTK_WIDGET (day_view));
if (gdk_pointer_grab (GTK_LAYOUT (canvas)->bin_window, FALSE,
GDK_POINTER_MOTION_MASK
| GDK_BUTTON_RELEASE_MASK,
FALSE, NULL, event->button.time) == 0) {
e_day_view_start_selection (day_view, -1, row);
dvtmitem->dragging_selection = TRUE;
}
}
static void
e_day_view_time_item_on_button_release (EDayViewTimeItem *dvtmitem,
GdkEvent *event)
{
EDayView *day_view;
day_view = dvtmitem->day_view;
g_return_if_fail (day_view != NULL);
if (dvtmitem->dragging_selection) {
gdk_pointer_ungrab (event->button.time);
e_day_view_finish_selection (day_view);
e_day_view_stop_auto_scroll (day_view);
}
dvtmitem->dragging_selection = FALSE;
}
static void
e_day_view_time_item_on_motion_notify (EDayViewTimeItem *dvtmitem,
GdkEvent *event)
{
EDayView *day_view;
GnomeCanvas *canvas;
gdouble window_y;
gint y, row;
if (!dvtmitem->dragging_selection)
return;
day_view = dvtmitem->day_view;
g_return_if_fail (day_view != NULL);
canvas = GNOME_CANVAS_ITEM (dvtmitem)->canvas;
y = event->motion.y;
row = e_day_view_time_item_convert_position_to_row (dvtmitem, y);
if (row != -1) {
gnome_canvas_world_to_window (canvas, 0, event->motion.y,
NULL, &window_y);
e_day_view_update_selection (day_view, -1, row);
e_day_view_check_auto_scroll (day_view, -1, (gint) window_y);
}
}
/* Returns the row corresponding to the y position, or -1. */
static gint
e_day_view_time_item_convert_position_to_row (EDayViewTimeItem *dvtmitem,
gint y)
{
EDayView *day_view;
gint row;
day_view = dvtmitem->day_view;
g_return_val_if_fail (day_view != NULL, -1);
if (y < 0)
return -1;
row = y / day_view->row_height;
if (row >= day_view->rows)
return -1;
return row;
}
