new widget and canvas item to replace GtkCalendar. Not quite finished yet.

2000-07-25  Damon Chaplin  <damon@helixcode.com>

	* e-calendar-item.h:
	* e-calendar.[hc]: new widget and canvas item to replace GtkCalendar.
	Not quite finished yet.

svn path=/trunk/; revision=4322

1 files changed, 151 insertions, 0 deletions

diff --git a/widgets/misc/e-calendar-item.h b/widgets/misc/e-calendar-item.h
new file mode 100644
index 0000000000..a59ca6d407
--- /dev/null
+++ b/widgets/misc/e-calendar-item.h
@@ -0,0 +1,151 @@
+/* -*- 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
+ */
+#ifndef _E_CALENDAR_ITEM_H_
+#define _E_CALENDAR_ITEM_H_
+
+#include <libgnomeui/gnome-canvas.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/*
+ * ECalendarItem - canvas item displaying a calendar.
+ */
+
+#define	E_CALENDAR_ITEM_YPAD1	1
+#define	E_CALENDAR_ITEM_YPAD2	1
+
+/* These index our colors array. */
+typedef enum
+{
+	E_CALENDAR_COLOR_SELECTION,
+	E_CALENDAR_COLOR_HIGHLIGHT,
+	E_CALENDAR_COLOR_TODAY,
+	
+	E_CALENDAR_COLOR_LAST
+} ECalendarColors;
+
+
+#define E_CALENDAR_ITEM(obj)     (GTK_CHECK_CAST((obj), \
+        e_calendar_item_get_type (), ECalendarItem))
+#define E_CALENDAR_ITEM_CLASS(k) (GTK_CHECK_CLASS_CAST ((k),\
+	e_calendar_item_get_type ()))
+#define E_IS_CALENDAR_ITEM(o)    (GTK_CHECK_TYPE((o), \
+	e_calendar_item_get_type ()))
+
+typedef struct {
+	GnomeCanvasItem canvas_item;
+
+	/* The year & month of the first calendar being displayed. */
+	gint year;
+	gint month;	/* 0 to 11 */
+
+	/* Bounds of item. */
+	gdouble x1, y1, x2, y2;
+
+	/* The minimum & maximum number of rows & columns of months. */
+	gint min_rows;
+	gint min_cols;
+	gint max_rows;
+	gint max_cols;
+
+	/* The number of rows & columns of months. */
+	gint rows;
+	gint cols;
+
+	/* Whether we show week nubers. */
+	gboolean show_week_numbers;
+
+	/* The first day of the week, 0 (Monday) to 6 (Sunday). */
+	gint week_start_day;
+
+	/* Whether the cells expand to fill extra space. */
+	gboolean expand;
+
+	/* The minimum size of each month, based on the fonts used. */
+	gint min_month_width;
+	gint min_month_height;
+
+	/* The actual size of each month, after dividing extra space. */
+	gint month_width;
+	gint month_height;
+
+	/* The offset to the left edge of the first calendar. */
+	gint x_offset;
+
+	/* The padding around each calendar month. */
+	gint month_lpad, month_rpad;
+	gint month_tpad, month_bpad;
+
+	/* The size of each cell. */
+	gint cell_width;
+	gint cell_height;
+
+
+	/* The current selection. The month offsets are from 0, which is the
+	   top-left calendar month view. The day offsets are from 0, which is
+	   the top-left cell in the month view (which may be empty). */
+	gint selection_start_month_offset;
+	gint selection_start_day_offset;
+	gint selection_end_month_offset;
+	gint selection_end_day_offset;
+	gboolean selecting;
+	gboolean selection_dragging_end;
+
+	/* The first character of each day of the week, e.g. 'MTWTFSS'. */
+	gchar *days;
+
+	/* Widths of the day characters. */
+	gint day_widths[7];
+
+	/* Widths of the digits, '0' .. '9'. */
+	gint digit_widths[10];
+	gint max_digit_width;
+	gint week_number_digit_widths[10];
+	gint max_week_number_digit_width;
+
+	/* Fonts for drawing text. If font isn't set it uses the font from the
+	   canvas widget. If week_number_font isn't set it uses font. */
+	GdkFont *font, *old_font;
+	GdkFont *week_number_font, *old_week_number_font;
+
+	/* Colors for drawing. */
+	GdkColor colors[E_CALENDAR_COLOR_LAST];
+} ECalendarItem;
+
+typedef struct {
+	GnomeCanvasItemClass parent_class;
+
+} ECalendarItemClass;
+
+
+GtkType  e_calendar_item_get_type	(void);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _E_CALENDAR_ITEM_H_ */