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-rw-r--r--calendar/gui/e-day-view-time-item.c312
1 files changed, 312 insertions, 0 deletions
diff --git a/calendar/gui/e-day-view-time-item.c b/calendar/gui/e-day-view-time-item.c
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+/* -*- 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;
+}
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