New widget for Day/Work-Week views. Unfinished.

svn path=/trunk/; revision=2115

1 files changed, 553 insertions, 0 deletions

diff --git a/calendar/gui/e-day-view-top-item.c b/calendar/gui/e-day-view-top-item.c
new file mode 100644
index 0000000000..fe19c6b491
--- /dev/null
+++ b/calendar/gui/e-day-view-top-item.c
@@ -0,0 +1,553 @@
+/* -*- 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
+ */
+
+/*
+ * EDayViewTopItem - displays the top part of the Day/Work Week calendar view.
+ */
+
+#include "e-day-view-top-item.h"
+
+static void e_day_view_top_item_class_init	(EDayViewTopItemClass *class);
+static void e_day_view_top_item_init		(EDayViewTopItem *dvtitem);
+
+static void e_day_view_top_item_set_arg		(GtkObject	 *o,
+						 GtkArg		 *arg,
+						 guint		  arg_id);
+static void e_day_view_top_item_update		(GnomeCanvasItem *item,
+						 double		 *affine,
+						 ArtSVP		 *clip_path,
+						 int		  flags);
+static void e_day_view_top_item_draw		(GnomeCanvasItem *item,
+						 GdkDrawable	 *drawable,
+						 int		  x,
+						 int		  y,
+						 int		  width,
+						 int		  height);
+static void e_day_view_top_item_draw_long_event	(EDayViewTopItem *dvtitem,
+						 gint		  event_num,
+						 GdkDrawable	 *drawable,
+						 int		  x,
+						 int		  y,
+						 int		  width,
+						 int		  height);
+static void e_day_view_top_item_draw_triangle	(EDayViewTopItem *dvtitem,
+						 GdkDrawable	 *drawable,
+						 gint		  x,
+						 gint		  y,
+						 gint		  w,
+						 gint		  h);
+static double e_day_view_top_item_point		(GnomeCanvasItem *item,
+						 double		  x,
+						 double		  y,
+						 int		  cx,
+						 int		  cy,
+						 GnomeCanvasItem **actual_item);
+static gint e_day_view_top_item_event		(GnomeCanvasItem *item,
+						 GdkEvent	 *event);
+
+
+static GnomeCanvasItemClass *parent_class;
+
+/* The arguments we take */
+enum {
+	ARG_0,
+	ARG_DAY_VIEW
+};
+
+
+GtkType
+e_day_view_top_item_get_type (void)
+{
+	static GtkType e_day_view_top_item_type = 0;
+
+	if (!e_day_view_top_item_type) {
+		GtkTypeInfo e_day_view_top_item_info = {
+			"EDayViewTopItem",
+			sizeof (EDayViewTopItem),
+			sizeof (EDayViewTopItemClass),
+			(GtkClassInitFunc) e_day_view_top_item_class_init,
+			(GtkObjectInitFunc) e_day_view_top_item_init,
+			NULL, /* reserved_1 */
+			NULL, /* reserved_2 */
+			(GtkClassInitFunc) NULL
+		};
+
+		e_day_view_top_item_type = gtk_type_unique (gnome_canvas_item_get_type (), &e_day_view_top_item_info);
+	}
+
+	return e_day_view_top_item_type;
+}
+
+
+static void
+e_day_view_top_item_class_init (EDayViewTopItemClass *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 ("EDayViewTopItem::day_view",
+				 GTK_TYPE_POINTER, GTK_ARG_WRITABLE,
+				 ARG_DAY_VIEW);
+
+	object_class->set_arg = e_day_view_top_item_set_arg;
+
+	/* GnomeCanvasItem method overrides */
+	item_class->update      = e_day_view_top_item_update;
+	item_class->draw        = e_day_view_top_item_draw;
+	item_class->point       = e_day_view_top_item_point;
+	item_class->event       = e_day_view_top_item_event;
+}
+
+
+static void
+e_day_view_top_item_init (EDayViewTopItem *dvtitem)
+{
+	dvtitem->day_view = NULL;
+}
+
+
+static void
+e_day_view_top_item_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
+{
+	GnomeCanvasItem *item;
+	EDayViewTopItem *dvtitem;
+
+	item = GNOME_CANVAS_ITEM (o);
+	dvtitem = E_DAY_VIEW_TOP_ITEM (o);
+	
+	switch (arg_id){
+	case ARG_DAY_VIEW:
+		dvtitem->day_view = GTK_VALUE_POINTER (*arg);
+		break;
+	}
+}
+
+
+static void
+e_day_view_top_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;
+}
+
+
+/*
+ * DRAWING ROUTINES - functions to paint the canvas item.
+ */
+
+static void
+e_day_view_top_item_draw (GnomeCanvasItem *canvas_item,
+			  GdkDrawable	  *drawable,
+			  int		   x,
+			  int		   y,
+			  int		   width,
+			  int		   height)
+{
+	EDayViewTopItem *dvtitem;
+	EDayView *day_view;
+	GtkStyle *style;
+	GdkGC *fg_gc, *bg_gc, *light_gc, *dark_gc;
+	gchar buffer[128];
+	GdkRectangle clip_rect;
+	GdkFont *font;
+	gint canvas_width, canvas_height, left_edge, day, date_width, date_x;
+	gint item_height, event_num;
+	struct tm *day_start;
+
+#if 0
+	g_print ("In e_day_view_top_item_draw %i,%i %ix%i\n",
+		 x, y, width, height);
+#endif
+	dvtitem = E_DAY_VIEW_TOP_ITEM (canvas_item);
+	day_view = dvtitem->day_view;
+	g_return_if_fail (day_view != NULL);
+
+	style = GTK_WIDGET (day_view)->style;
+	font = style->font;
+	fg_gc = style->fg_gc[GTK_STATE_NORMAL];
+	bg_gc = style->bg_gc[GTK_STATE_NORMAL];
+	light_gc = style->light_gc[GTK_STATE_NORMAL];
+	dark_gc = style->dark_gc[GTK_STATE_NORMAL];
+	canvas_width = GTK_WIDGET (canvas_item->canvas)->allocation.width;
+	canvas_height = GTK_WIDGET (canvas_item->canvas)->allocation.height;
+	left_edge = 0;
+	item_height = day_view->top_row_height - E_DAY_VIEW_TOP_CANVAS_Y_GAP;
+
+	/* Clear the entire background. */
+	gdk_draw_rectangle (drawable, dark_gc, TRUE,
+			    left_edge - x, 0,
+			    canvas_width - left_edge, height);
+
+	/* Draw the shadow around the dates. */
+	gdk_draw_line (drawable, light_gc,
+		       left_edge + 1 - x, 1 - y,
+		       canvas_width - 2 - x, 1 - y);
+	gdk_draw_line (drawable, light_gc,
+		       left_edge + 1 - x, 2 - y,
+		       left_edge + 1 - x, item_height - 1 - y);
+
+	/* Draw the background for the dates. */
+	gdk_draw_rectangle (drawable, bg_gc, TRUE,
+			    left_edge + 2 - x, 2 - y,
+			    canvas_width - left_edge - 3,
+			    item_height - 3);
+
+	/* Draw the selection background. */
+	if (day_view->selection_start_col != -1) {
+		gint start_col, end_col, rect_x, rect_y, rect_w, rect_h;
+
+		start_col = day_view->selection_start_col;
+		end_col = day_view->selection_end_col;
+
+		if (end_col > start_col
+		    || day_view->selection_start_row == -1
+		    || day_view->selection_end_row == -1) {
+			rect_x = day_view->day_offsets[start_col];
+			rect_y = item_height;
+			rect_w = day_view->day_offsets[end_col + 1] - rect_x;
+			rect_h = canvas_height - 1 - rect_y;
+
+			gdk_draw_rectangle (drawable, style->white_gc, TRUE,
+					    rect_x - x, rect_y - y,
+					    rect_w, rect_h);
+		}
+	}
+
+	/* Draw the date. Set a clipping rectangle so we don't draw over the
+	   next day. */
+	for (day = 0; day < day_view->days_shown; day++) {
+		day_start = localtime (&day_view->day_starts[day]);
+
+		if (day_view->date_format == E_DAY_VIEW_DATE_FULL)
+			strftime (buffer, 128, "%d %B", day_start);
+		else if (day_view->date_format == E_DAY_VIEW_DATE_ABBREVIATED)
+			strftime (buffer, 128, "%d %b", day_start);
+		else
+			strftime (buffer, 128, "%d", day_start);
+
+		clip_rect.x = day_view->day_offsets[day] - x;
+		clip_rect.y = 2 - y;
+		clip_rect.width = day_view->day_widths[day];
+		clip_rect.height = item_height - 2;
+		gdk_gc_set_clip_rectangle (fg_gc, &clip_rect);
+
+		date_width = gdk_string_width (font, buffer);
+		date_x = day_view->day_offsets[day] + (day_view->day_widths[day] - date_width) / 2;
+		gdk_draw_string (drawable, font, fg_gc,
+				 date_x - x, 3 + font->ascent - y, buffer);
+
+		gdk_gc_set_clip_rectangle (fg_gc, NULL);
+
+		/* Draw the lines down the left and right of the date cols. */
+		if (day != 0) {
+			gdk_draw_line (drawable, light_gc,
+				       day_view->day_offsets[day] - x,
+				       4 - y,
+				       day_view->day_offsets[day] - x,
+				       item_height - 4 - y);
+
+			gdk_draw_line (drawable, dark_gc,
+				       day_view->day_offsets[day] - 1 - x,
+				       4 - y,
+				       day_view->day_offsets[day] - 1 - x,
+				       item_height - 4 - y);
+		}
+
+		/* Draw the lines between each column. */
+		if (day != 0) {
+			gdk_draw_line (drawable, style->black_gc,
+				       day_view->day_offsets[day] - x,
+				       item_height - y,
+				       day_view->day_offsets[day] - x,
+				       canvas_height - y);
+		}
+	}
+
+	/* Draw the long events. */
+	for (event_num = 0; event_num < day_view->long_events->len;
+	     event_num++) {
+		e_day_view_top_item_draw_long_event (dvtitem, event_num,
+						     drawable,
+						     x, y, width, height);
+	}
+}
+
+
+/* This draws one event in the top canvas. */
+static void
+e_day_view_top_item_draw_long_event (EDayViewTopItem *dvtitem,
+				     gint	      event_num,
+				     GdkDrawable     *drawable,
+				     int	      x,
+				     int	      y,
+				     int	      width,
+				     int	      height)
+{
+	EDayView *day_view;
+	EDayViewEvent *event;
+	GtkStyle *style;
+	GdkGC *gc, *fg_gc, *bg_gc;
+	GdkFont *font;
+	gint start_day, end_day;
+	gint item_x, item_y, item_w, item_h;
+	gint text_x, icon_x, icon_y, icon_x_inc;
+	iCalObject *ico;
+	gchar buffer[16];
+	gint hour, minute, offset, time_width;
+	gboolean draw_start_triangle, draw_end_triangle;
+
+	day_view = dvtitem->day_view;
+
+	/* If the event is currently being dragged, don't draw it. It will
+	   be drawn in the special drag items. */
+	if (day_view->drag_event_day == E_DAY_VIEW_LONG_EVENT
+	    && day_view->drag_event_num == event_num)
+		return;
+
+	if (!e_day_view_get_long_event_position (day_view, event_num,
+						 &start_day, &end_day,
+						 &item_x, &item_y,
+						 &item_w, &item_h))
+		return;
+
+	event = &g_array_index (day_view->long_events, EDayViewEvent,
+				event_num);
+
+	style = GTK_WIDGET (day_view)->style;
+	font = style->font;
+	gc = day_view->main_gc;
+	fg_gc = style->fg_gc[GTK_STATE_NORMAL];
+	bg_gc = style->bg_gc[GTK_STATE_NORMAL];
+	ico = event->ico;
+
+	/* Draw the lines across the top & bottom of the entire event. */
+	gdk_draw_line (drawable, fg_gc,
+		       item_x - x, item_y - y,
+		       item_x + item_w - 1 - x, item_y - y);
+	gdk_draw_line (drawable, fg_gc,
+		       item_x - x, item_y + item_h - 1 - y,
+		       item_x + item_w - 1 - x, item_y + item_h - 1 - y);
+
+	/* Fill it in. */
+	gdk_draw_rectangle (drawable, bg_gc, TRUE,
+			    item_x - x, item_y + 1 - y,
+			    item_w, item_h - 2);
+
+	/* When resizing we don't draw the triangles.*/
+	draw_start_triangle = TRUE;
+	draw_end_triangle = TRUE;
+	if (day_view->resize_drag_pos != E_DAY_VIEW_POS_NONE
+	    && day_view->resize_event_day == E_DAY_VIEW_LONG_EVENT
+	    && day_view->resize_event_num == event_num) {
+		if (day_view->resize_drag_pos == E_DAY_VIEW_POS_LEFT_EDGE)
+			draw_start_triangle = FALSE;
+
+		if  (day_view->resize_drag_pos == E_DAY_VIEW_POS_RIGHT_EDGE)
+			draw_end_triangle = FALSE;
+	}
+
+	/* If the event starts before the first day shown, draw a triangle,
+	   else just draw a vertical line down the left. */
+	if (draw_start_triangle
+	    && event->start < day_view->day_starts[start_day]) {
+		e_day_view_top_item_draw_triangle (dvtitem, drawable,
+						   item_x - x, item_y - y,
+						   -E_DAY_VIEW_BAR_WIDTH,
+						   item_h);
+	} else {
+		gdk_draw_line (drawable, fg_gc,
+			       item_x - x, item_y - y,
+			       item_x - x, item_y + item_h - 1 - y);
+	}
+
+	/* Similar for the event end. */
+	if (draw_end_triangle
+	    && event->end > day_view->day_starts[end_day + 1]) {
+		e_day_view_top_item_draw_triangle (dvtitem, drawable,
+						   item_x + item_w - 1 - x,
+						   item_y - y,
+						   E_DAY_VIEW_BAR_WIDTH,
+						   item_h);
+	} else {
+		gdk_draw_line (drawable, fg_gc,
+			       item_x + item_w - 1 - x,
+			       item_y - y,
+			       item_x + item_w - 1 - x,
+			       item_y + item_h - 1 - y);
+	}
+
+	/* If we are editing the event we don't show the icons or the start
+	   & end times. */
+	if (day_view->editing_event_day == E_DAY_VIEW_LONG_EVENT
+	    && day_view->editing_event_num == event_num)
+		return;
+
+	/* Determine the position of the label, so we know where to place the
+	   icons. Note that since the top canvas never scrolls we don't need
+	   to take the scroll offset into account. It will always be 0. */
+	text_x = event->canvas_item->x1;
+
+	/* Draw the icons. */
+	icon_x_inc = E_DAY_VIEW_ICON_WIDTH + E_DAY_VIEW_ICON_X_PAD;
+	icon_x = text_x - icon_x_inc - x;
+	icon_y = item_y + 1 + E_DAY_VIEW_ICON_Y_PAD - y;
+
+	if (ico->recur) {
+		gdk_gc_set_clip_origin (gc, icon_x, icon_y);
+		gdk_gc_set_clip_mask (gc, day_view->recurrence_mask);
+		gdk_draw_pixmap (drawable, gc,
+				 day_view->recurrence_icon,
+				 0, 0, icon_x, icon_y,
+				 E_DAY_VIEW_ICON_WIDTH,
+				 E_DAY_VIEW_ICON_HEIGHT);
+		icon_x -= icon_x_inc;
+	}
+
+	if (ico->dalarm.enabled || ico->malarm.enabled
+	    || ico->palarm.enabled || ico->aalarm.enabled) {
+		gdk_gc_set_clip_origin (gc, icon_x, icon_y);
+		gdk_gc_set_clip_mask (gc, day_view->reminder_mask);
+		gdk_draw_pixmap (drawable, gc,
+				 day_view->reminder_icon,
+				 0, 0, icon_x, icon_y,
+				 E_DAY_VIEW_ICON_WIDTH,
+				 E_DAY_VIEW_ICON_HEIGHT);
+		icon_x -= icon_x_inc;
+	}
+	gdk_gc_set_clip_mask (gc, NULL);
+
+	/* Draw the start & end times, if necessary.
+	   Note that GtkLabel adds 1 to the ascent so we must do that to be
+	   level with it. */
+	if (event->start > day_view->day_starts[start_day]) {
+		offset = day_view->first_hour_shown * 60
+			+ day_view->first_minute_shown + event->start_minute;
+		hour = offset / 60;
+		minute = offset % 60;
+		sprintf (buffer, "%02i:%02i", hour, minute);
+		gdk_draw_string (drawable, font, fg_gc,
+				 item_x + + E_DAY_VIEW_LONG_EVENT_X_PAD  - x,
+				 item_y + E_DAY_VIEW_LONG_EVENT_Y_PAD + font->ascent + 1 - y,
+				 buffer);
+	}
+
+	if (event->end < day_view->day_starts[end_day + 1]) {
+		offset = day_view->first_hour_shown * 60
+			+ day_view->first_minute_shown + event->end_minute;
+		hour = offset / 60;
+		minute = offset % 60;
+		sprintf (buffer, "%02i:%02i", hour, minute);
+		time_width = day_view->small_hour_widths[hour]
+			+ day_view->max_minute_width + day_view->colon_width;
+		gdk_draw_string (drawable, font, fg_gc,
+				 item_x + item_w - E_DAY_VIEW_LONG_EVENT_X_PAD - time_width - E_DAY_VIEW_LONG_EVENT_TIME_X_PAD - x,
+				 item_y + E_DAY_VIEW_LONG_EVENT_Y_PAD + font->ascent + 1 - y,
+				 buffer);
+	}
+}
+
+
+/* This draws a little triangle to indicate that an event extends past
+   the days visible on screen. */
+static void
+e_day_view_top_item_draw_triangle (EDayViewTopItem *dvtitem,
+				   GdkDrawable	   *drawable,
+				   gint		    x,
+				   gint		    y,
+				   gint		    w,
+				   gint		    h)
+{
+	EDayView *day_view;
+	GtkStyle *style;
+	GdkGC *fg_gc, *bg_gc;
+	GdkPoint points[3];
+
+	day_view = dvtitem->day_view;
+
+	style = GTK_WIDGET (day_view)->style;
+	fg_gc = style->fg_gc[GTK_STATE_NORMAL];
+	bg_gc = style->bg_gc[GTK_STATE_NORMAL];
+
+	points[0].x = x;
+	points[0].y = y;
+	points[1].x = x + w;
+	points[1].y = y + (h / 2) - 1;
+	points[2].x = x;
+	points[2].y = y + h - 1;
+
+	gdk_draw_polygon (drawable, bg_gc, TRUE, points, 3);
+	gdk_draw_line (drawable, fg_gc, x, y, x + w, y + (h / 2) - 1);
+	gdk_draw_line (drawable, fg_gc, x, y + h - 1, x + w, y + h - (h / 2));
+}
+
+
+/* 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_day_view_top_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_top_item_event (GnomeCanvasItem *item, GdkEvent *event)
+{
+	EDayViewTopItem *dvtitem;
+
+	dvtitem = E_DAY_VIEW_TOP_ITEM (item);
+
+	switch (event->type) {
+	case GDK_BUTTON_PRESS:
+
+	case GDK_BUTTON_RELEASE:
+
+	case GDK_MOTION_NOTIFY:
+
+	default:
+		break;
+	}
+
+	return FALSE;
+}
+
+