/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Author :
* Damon Chaplin <damon@helixcode.com>
*
* Copyright 1999, 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
*/
/*
* EDayViewTimeItem - canvas item which displays the times down the left of
* the EDayView.
*/
#include "e-day-view-time-item.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). */
#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
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 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;
}
static void
e_day_view_time_item_init (EDayViewTimeItem *dvtmitm)
{
}
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;
day_view = dvtmitem->day_view;
g_return_val_if_fail (day_view != NULL, 0);
/* Calculate the width of each time column. */
if (day_view->mins_per_row == 60) {
dvtmitem->column_width = day_view->max_small_hour_width
+ day_view->colon_width
+ day_view->max_minute_width
+ E_DVTMI_60_MIN_X_PAD * 2
+ E_DVTMI_TIME_GRID_X_PAD * 2;
} else {
dvtmitem->column_width = day_view->max_large_hour_width
+ day_view->max_minute_width
+ E_DVTMI_MIN_X_PAD * 2
+ E_DVTMI_HOUR_L_PAD
+ E_DVTMI_HOUR_R_PAD
+ E_DVTMI_TIME_GRID_X_PAD * 2;
}
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;
gint time_hour_x1, time_hour_x2, time_min_x1;
gint hour, minute, hour_y, min_y, hour_r, min_r, start_y;
gint row, row_y, min_width, hour_width;
GtkStyle *style;
GdkFont *small_font, *large_font;
GdkGC *fg_gc, *dark_gc;
gchar buffer[16];
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];
/* Step through each row, drawing the horizontal grid lines for each
day column and the times. */
time_hour_x1 = E_DVTMI_TIME_GRID_X_PAD - x;
time_hour_x2 = dvtmitem->column_width - E_DVTMI_TIME_GRID_X_PAD - x;
if (day_view->mins_per_row == 60) {
min_r = time_hour_x2 - E_DVTMI_60_MIN_X_PAD;
} else {
time_min_x1 = time_hour_x2 - E_DVTMI_MIN_X_PAD * 2
- day_view->max_minute_width;
hour_r = time_min_x1 - E_DVTMI_HOUR_R_PAD;
min_r = time_hour_x2 - E_DVTMI_MIN_X_PAD;
}
hour = day_view->first_hour_shown;
hour_y = large_font->ascent + 2; /* FIXME */
minute = day_view->first_minute_shown;
min_y = small_font->ascent + 2; /* FIXME */
start_y = 0 - MAX (day_view->row_height, hour_y + large_font->descent);
for (row = 0, row_y = 0 - y;
row < day_view->rows && row_y < height;
row++, row_y += day_view->row_height) {
if (row_y > start_y) {
/* Draw the times down the left if needed. */
if (min_r <= 0)
continue;
if (day_view->mins_per_row == 60) {
gdk_draw_line (drawable, dark_gc,
time_hour_x1, row_y,
time_hour_x2, row_y);
sprintf (buffer, "%02i:%02i", hour, minute);
min_width = day_view->small_hour_widths[hour] + day_view->minute_widths[minute / 5] + day_view->colon_width;
gdk_draw_string (drawable, small_font, fg_gc,
min_r - min_width,
row_y + min_y, buffer);
} else {
if (minute == 0) {
gdk_draw_line (drawable, dark_gc,
time_hour_x1, row_y,
time_hour_x2, row_y);
sprintf (buffer, "%02i", hour);
hour_width = day_view->large_hour_widths[hour];
gdk_draw_string (drawable, large_font,
fg_gc,
hour_r - hour_width,
row_y + hour_y,
buffer);
} else {
gdk_draw_line (drawable, dark_gc,
time_min_x1, row_y,
time_hour_x2, row_y);
}
if (day_view->mins_per_row != 30
|| minute != 30) {
sprintf (buffer, "%02i", minute);
min_width = day_view->minute_widths[minute / 5];
gdk_draw_string (drawable, small_font,
fg_gc,
min_r - min_width,
row_y + min_y,
buffer);
}
}
}
minute += day_view->mins_per_row;
if (minute >= 60) {
hour++;
minute -= 60;
}
}
}
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;
}