More work in progress, wheeeee - Federico

svn path=/trunk/; revision=109

1 files changed, 831 insertions, 71 deletions

diff --git a/calendar/gui/gncal-full-day.c b/calendar/gui/gncal-full-day.c
index ba646d5a2e..b6a61a3a9d 100644
--- a/calendar/gui/gncal-full-day.c
+++ b/calendar/gui/gncal-full-day.c
@@ -6,26 +6,453 @@
  */
 
 #include <gtk/gtkdrawingarea.h>
+#include <gtk/gtktext.h>
 #include "gncal-full-day.h"
+#include "view-utils.h"
 
 
 #define TEXT_BORDER 2
+#define HANDLE_SIZE 3
 #define MIN_WIDTH 200
+#define XOR_RECT_WIDTH 2
+
+
+typedef struct {
+	iCalObject *ico;
+	GtkWidget  *widget;
+	GdkWindow  *window;
+	int         lower_row; /* zero is first displayed row */
+	int         rows_used;
+	int         x;         /* coords of child's window */
+	int         y;
+	int         width;
+	int         height;
+} Child;
+
+struct layout_row {
+	int  intersections;
+	int *slots;
+};
+
+struct drag_info {
+	Child *child;
+	enum {
+		DRAG_MOVE,
+		DRAG_SIZE
+	} drag_mode;
+	int new_y;
+	int new_height;
+};
+
+
+static void gncal_full_day_class_init     (GncalFullDayClass *class);
+static void gncal_full_day_init           (GncalFullDay      *fullday);
+static void gncal_full_day_destroy        (GtkObject         *object);
+static void gncal_full_day_map            (GtkWidget         *widget);
+static void gncal_full_day_unmap          (GtkWidget         *widget);
+static void gncal_full_day_realize        (GtkWidget         *widget);
+static void gncal_full_day_unrealize      (GtkWidget         *widget);
+static void gncal_full_day_draw           (GtkWidget         *widget,
+					   GdkRectangle      *area);
+static void gncal_full_day_size_request   (GtkWidget         *widget,
+					   GtkRequisition    *requisition);
+static void gncal_full_day_size_allocate  (GtkWidget         *widget,
+					   GtkAllocation     *allocation);
+static gint gncal_full_day_button_press   (GtkWidget         *widget,
+					   GdkEventButton    *event);
+static gint gncal_full_day_button_release (GtkWidget         *widget,
+					   GdkEventButton    *event);
+static gint gncal_full_day_motion         (GtkWidget         *widget,
+					   GdkEventMotion    *event);
+static gint gncal_full_day_expose         (GtkWidget         *widget,
+					   GdkEventExpose    *event);
+static void gncal_full_day_foreach        (GtkContainer      *container,
+					   GtkCallback        callback,
+					   gpointer           callback_data);
 
 
-static void gncal_full_day_class_init    (GncalFullDayClass *class);
-static void gncal_full_day_init          (GncalFullDay      *fullday);
-static void gncal_full_day_realize       (GtkWidget         *widget);
-static void gncal_full_day_size_request  (GtkWidget         *widget,
-					  GtkRequisition    *requisition);
-static void gncal_full_day_size_allocate (GtkWidget         *widget,
-					  GtkAllocation     *allocation);
-static gint gncal_full_day_expose        (GtkWidget         *widget,
-					  GdkEventExpose    *event);
+static GtkContainerClass *parent_class;
 
 
-static GtkContainerClass *parent_class;
+static void
+get_tm_range (GncalFullDay *fullday,
+	      time_t time_lower, time_t time_upper,
+	      struct tm *lower, struct tm *upper,
+	      int *lower_row, int *rows_used)
+{
+	struct tm tm_lower, tm_upper;
+	int lmin, umin;
+	int lrow;
+
+	/* Lower */
+
+	tm_lower = *localtime (&time_lower);
+
+	if ((tm_lower.tm_min % fullday->interval) != 0) {
+		tm_lower.tm_min -= tm_lower.tm_min % fullday->interval; /* round down */
+		mktime (&tm_lower);
+	}
+
+	/* Upper */
+
+	tm_upper = *localtime (&time_upper);
+
+	if ((tm_upper.tm_min % fullday->interval) != 0) {
+		tm_upper.tm_min += fullday->interval - (tm_upper.tm_min % fullday->interval); /* round up */
+		mktime (&tm_upper);
+	}
+
+	if (lower)
+		*lower = tm_lower;
+
+	if (upper)
+		*upper = tm_upper;
+
+	lmin = 60 * tm_lower.tm_hour + tm_lower.tm_min;
+	umin = 60 * tm_upper.tm_hour + tm_upper.tm_min;
+
+	if (umin == 0) /* midnight of next day? */
+		umin = 60 * 24;
+
+	lrow = lmin / fullday->interval;
+
+	if (lower_row)
+		*lower_row = lrow;
+
+	if (rows_used)
+		*rows_used = (umin - lmin) / fullday->interval;
+}
+
+static void
+child_map (GncalFullDay *fullday, Child *child)
+{
+	gdk_window_show (child->window);
+
+	if (GTK_WIDGET_VISIBLE (child->widget) && !GTK_WIDGET_MAPPED (child->widget))
+		gtk_widget_map (child->widget);
+}
+
+static void
+child_unmap (GncalFullDay *fullday, Child *child)
+{
+	gdk_window_hide (child->window);
+
+	if (GTK_WIDGET_VISIBLE (child->widget) && GTK_WIDGET_MAPPED (child->widget))
+		gtk_widget_unmap (child->widget);
+}
+
+static void
+child_move_text (Child *child)
+{
+	GtkAllocation allocation;
+
+	allocation.x = 0;
+	allocation.y = HANDLE_SIZE;
+	allocation.width = child->width;
+	allocation.height = child->height - 2 * HANDLE_SIZE;
+
+	gtk_widget_size_request (child->widget, &child->widget->requisition); /* FIXME: is this needed? */
+	gtk_widget_size_allocate (child->widget, &allocation);
+}
+
+static void
+child_realize (GncalFullDay *fullday, Child *child)
+{
+	GdkWindowAttr attributes;
+	gint attributes_mask;
+	GtkWidget *widget;
+
+	widget = GTK_WIDGET (fullday);
+
+	attributes.window_type = GDK_WINDOW_CHILD;
+	attributes.x = child->x;
+	attributes.y = child->y;
+	attributes.width = child->width;
+	attributes.height = child->height;
+	attributes.wclass = GDK_INPUT_OUTPUT;
+	attributes.visual = gtk_widget_get_visual (widget);
+	attributes.colormap = gtk_widget_get_colormap (widget);
+	attributes.cursor = fullday->up_down_cursor;
+	attributes.event_mask = (GDK_EXPOSURE_MASK
+				 | GDK_BUTTON_PRESS_MASK
+				 | GDK_BUTTON_RELEASE_MASK
+				 | GDK_BUTTON_MOTION_MASK
+				 | GDK_POINTER_MOTION_HINT_MASK);
+
+	attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP | GDK_WA_CURSOR;
+
+	child->window = gdk_window_new (widget->window, &attributes, attributes_mask);
+	gdk_window_set_user_data (child->window, widget);
+
+	gtk_style_set_background (widget->style, child->window, GTK_STATE_NORMAL);
+
+	gtk_widget_set_parent_window (child->widget, child->window);
+
+	child_move_text (child);
+}
+
+static void
+child_unrealize (GncalFullDay *fullday, Child *child)
+{
+	gdk_window_set_user_data (child->window, NULL);
+	gdk_window_destroy (child->window);
+	child->window = NULL;
+}
+
+static void
+child_draw (GncalFullDay *fullday, Child *child, GdkRectangle *area, int draw_child)
+{
+	GdkRectangle arect, rect, dest;
+	gint w, h;
+
+	gdk_window_get_size (child->window, &w, &h);
+
+	if (!area) {
+		arect.x = 0;
+		arect.y = 0;
+
+		arect.width = w;
+		arect.height = h;
+
+		area = &arect;
+	}
+
+	/* Top handle */
+
+	rect.x = 0;
+	rect.y = 0;
+	rect.width = w;
+	rect.height = HANDLE_SIZE;
+
+	if (gdk_rectangle_intersect (&rect, area, &dest))
+		view_utils_draw_textured_frame (GTK_WIDGET (fullday), child->window, &rect, GTK_SHADOW_OUT);
+
+	/* Bottom handle */
+
+	rect.y = h - HANDLE_SIZE;
+
+	if (gdk_rectangle_intersect (&rect, area, &dest))
+		view_utils_draw_textured_frame (GTK_WIDGET (fullday), child->window, &rect, GTK_SHADOW_OUT);
+
+	if (draw_child) {
+		area->y -= HANDLE_SIZE;
+		gtk_widget_draw (child->widget, area);
+	}
+}
+
+static void
+child_set_beam_cursor (GtkWidget *widget, gpointer data)
+{
+	GncalFullDay *fullday = data;
+
+	gdk_window_set_cursor (widget->window, fullday->beam_cursor);
+}
+
+static Child *
+child_new (GncalFullDay *fullday, iCalObject *ico)
+{
+	Child *child;
+	struct tm start, end;
+	int lower_row, rows_used;
+	int f_lower_row;
+
+	child = g_new (Child, 1);
+
+	child->ico = ico;
+	child->widget = gtk_text_new (NULL, NULL);
+	child->window = NULL;
+	child->x = 0;
+	child->y = 0;
+	child->width = 0;
+	child->height = 0;
+
+	/* Calc display range for event */
+
+	get_tm_range (fullday, child->ico->dtstart, child->ico->dtend, &start, &end, &lower_row, &rows_used);
+	get_tm_range (fullday, fullday->lower, fullday->upper, NULL, NULL, &f_lower_row, NULL);
+
+	child->lower_row = lower_row - f_lower_row;
+	child->rows_used = rows_used;
+
+	/* Finish setup */
+
+	gtk_signal_connect (GTK_OBJECT (child->widget), "realize",
+			    (GtkSignalFunc) child_set_beam_cursor,
+			    fullday);
+
+	gtk_text_set_editable (GTK_TEXT (child->widget), TRUE);
+	gtk_text_set_word_wrap (GTK_TEXT (child->widget), TRUE);
 
+	gtk_widget_set_parent (child->widget, GTK_WIDGET (fullday));
+	gtk_widget_show (child->widget);
+
+	return child;
+}
+
+static void
+child_destroy (GncalFullDay *fullday, Child *child)
+{
+	/* FIXME */
+}
+
+static void
+child_set_pos (GncalFullDay *fullday, Child *child, int x, int y, int width, int height)
+{
+	child->x = x;
+	child->y = y;
+	child->width = width;
+	child->height = height;
+
+	if (!GTK_WIDGET_REALIZED (fullday))
+		return;
+
+	child_move_text (child);
+	gdk_window_move_resize (child->window, x, y, width, height);
+}
+
+static struct layout_row *
+layout_get_rows (GncalFullDay *fullday)
+{
+	struct layout_row *rows;
+	int max_i;
+	int f_rows;
+	GList *children;
+	Child *child;
+	int i, n;
+
+	get_tm_range (fullday, fullday->lower, fullday->upper, NULL, NULL, NULL, &f_rows);
+
+	rows = g_new0 (struct layout_row, f_rows);
+	max_i = 0;
+
+	for (children = fullday->children; children; children = children->next) {
+		child = children->data;
+
+		for (i = 0; i < child->rows_used; i++) {
+			n = child->lower_row + i;
+
+			rows[n].intersections++;
+			
+			if (rows[n].intersections > max_i)
+				max_i = rows[n].intersections;
+		}
+	}
+
+	for (i = 0; i < f_rows; i++)
+		rows[i].slots = g_new0 (int, max_i);
+
+	return rows;
+}
+
+static void
+layout_get_child_intersections (Child *child, struct layout_row *rows, int *min, int *max)
+{
+	int i, n;
+	int imin, imax;
+
+	imax = 0;
+
+	for (i = 0; i < child->rows_used; i++) {
+		n = child->lower_row + i;
+
+		if (rows[n].intersections > imax)
+			imax = rows[n].intersections;
+	}
+
+	imin = imax;
+
+	for (i = 0; i < child->rows_used; i++) {
+		n = child->lower_row + i;
+
+		if (rows[n].intersections < imin)
+			imin = rows[n].intersections;
+	}
+
+	if (min)
+		*min = imin;
+
+	if (max)
+		*max = imax;
+}
+
+static int
+calc_labels_width (GncalFullDay *fullday)
+{
+	struct tm cur, upper;
+	time_t tim, time_upper;
+	int width, max_w;
+	char buf[256];
+
+	get_tm_range (fullday, fullday->lower, fullday->upper, &cur, &upper, NULL, NULL);
+
+	max_w = 0;
+
+	tim = mktime (&cur);
+	time_upper = mktime (&upper);
+
+	while (tim < time_upper) {
+		strftime (buf, 256, "%X", &cur);
+
+		width = gdk_string_width (GTK_WIDGET (fullday)->style->font, buf);
+
+		if (width > max_w)
+			max_w = width;
+
+		cur.tm_min += fullday->interval;
+		tim = mktime (&cur);
+	}
+
+	return max_w;
+}
+
+static void
+layout_child (GncalFullDay *fullday, Child *child, struct layout_row *rows)
+{
+	int c_x, c_y, c_width, c_height;
+	GtkWidget *widget;
+	int labels_width;
+	int height, f_rows;
+	int row_height;
+
+	/* Calculate child position */
+
+	widget = GTK_WIDGET (fullday);
+
+	labels_width = calc_labels_width (fullday); /* FIXME: this is expensive to do for each child */
+
+	get_tm_range (fullday, fullday->lower, fullday->upper, NULL, NULL, NULL, &f_rows);
+
+	height = widget->allocation.height - 2 * widget->style->klass->ythickness;
+	row_height = height / f_rows;
+
+	c_x = 2 * (widget->style->klass->xthickness + TEXT_BORDER) + labels_width;
+	c_y = widget->style->klass->ythickness;
+
+	/* FIXME: for now, the children overlap.  Make it layout them nicely. */
+
+	c_width = widget->allocation.width - (widget->style->klass->xthickness + c_x);
+
+	c_y += child->lower_row * row_height;
+	c_height = child->rows_used * row_height;
+
+	/* Position child */
+
+	child_set_pos (fullday, child, c_x, c_y, c_width, c_height);
+}
+
+static void
+layout_children (GncalFullDay *fullday)
+{
+	struct layout_row *rows;
+	GList *children;
+
+	rows = layout_get_rows (fullday);
+
+	for (children = fullday->children; children; children = children->next)
+		layout_child (fullday, children->data, rows);
+
+	g_free (rows);
+}
 
 guint
 gncal_full_day_get_type (void)
@@ -52,18 +479,31 @@ gncal_full_day_get_type (void)
 static void
 gncal_full_day_class_init (GncalFullDayClass *class)
 {
+	GtkObjectClass    *object_class;
 	GtkWidgetClass    *widget_class;
 	GtkContainerClass *container_class;
 
+	object_class = (GtkObjectClass *) class;
 	widget_class = (GtkWidgetClass *) class;
 	container_class = (GtkContainerClass *) class;
 
 	parent_class = gtk_type_class (gtk_container_get_type ());
 
+	object_class->destroy = gncal_full_day_destroy;
+
+	widget_class->map = gncal_full_day_map;
+	widget_class->unmap = gncal_full_day_unmap;
 	widget_class->realize = gncal_full_day_realize;
+	widget_class->unrealize = gncal_full_day_unrealize;
+	widget_class->draw = gncal_full_day_draw;
 	widget_class->size_request = gncal_full_day_size_request;
 	widget_class->size_allocate = gncal_full_day_size_allocate;
+	widget_class->button_press_event = gncal_full_day_button_press;
+	widget_class->button_release_event = gncal_full_day_button_release;
+	widget_class->motion_notify_event = gncal_full_day_motion;
 	widget_class->expose_event = gncal_full_day_expose;
+
+	container_class->foreach = gncal_full_day_foreach;
 }
 
 static void
@@ -76,6 +516,29 @@ gncal_full_day_init (GncalFullDay *fullday)
 	fullday->lower = 0;
 	fullday->upper = 0;
 	fullday->interval = 30; /* 30 minutes by default */
+
+	fullday->children = NULL;
+	fullday->drag_info = g_new (struct drag_info, 1);
+
+	fullday->up_down_cursor = NULL;
+	fullday->beam_cursor = NULL;
+}
+
+static void
+gncal_full_day_destroy (GtkObject *object)
+{
+	GncalFullDay *fullday;
+
+	g_return_if_fail (object != NULL);
+	g_return_if_fail (GNCAL_IS_FULL_DAY (object));
+
+	fullday = GNCAL_FULL_DAY (object);
+
+	g_list_free (fullday->children);
+	g_free (fullday->drag_info);
+
+	if (GTK_OBJECT_CLASS (parent_class)->destroy)
+		(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 }
 
 GtkWidget *
@@ -95,16 +558,58 @@ gncal_full_day_new (GnomeCalendar *calendar, time_t lower, time_t upper)
 }
 
 static void
+gncal_full_day_map (GtkWidget *widget)
+{
+	GncalFullDay *fullday;
+	GList *children;
+
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (GNCAL_IS_FULL_DAY (widget));
+
+	GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+
+	fullday = GNCAL_FULL_DAY (widget);
+
+	gdk_window_show (widget->window);
+
+	for (children = fullday->children; children; children = children->next)
+		child_map (fullday, children->data);
+}
+
+static void
+gncal_full_day_unmap (GtkWidget *widget)
+{
+	GncalFullDay *fullday;
+	GList *children;
+
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (GNCAL_IS_FULL_DAY (widget));
+
+	GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+
+	fullday = GNCAL_FULL_DAY (widget);
+
+	gdk_window_hide (widget->window);
+
+	for (children = fullday->children; children; children = children->next)
+		child_unmap (fullday, children->data);
+}
+
+static void
 gncal_full_day_realize (GtkWidget *widget)
 {
+	GncalFullDay *fullday;
 	GdkWindowAttr attributes;
 	gint attributes_mask;
+	GList *children;
 
 	g_return_if_fail (widget != NULL);
 	g_return_if_fail (GNCAL_IS_FULL_DAY (widget));
 
 	GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 
+	fullday = GNCAL_FULL_DAY (widget);
+
 	attributes.window_type = GDK_WINDOW_CHILD;
 	attributes.x = widget->allocation.x;
 	attributes.y = widget->allocation.y;
@@ -123,75 +628,53 @@ gncal_full_day_realize (GtkWidget *widget)
 
 	widget->style = gtk_style_attach (widget->style, widget->window);
 	gdk_window_set_background (widget->window, &widget->style->bg[GTK_STATE_PRELIGHT]);
-}
 
-static int
-get_tm_bounds (GncalFullDay *fullday, struct tm *lower, struct tm *upper)
-{
-	struct tm tm_lower, tm_upper;
-	int lmin, umin;
-
-	/* Lower */
-
-	tm_lower = *localtime (&fullday->lower);
-
-	if ((tm_lower.tm_min % fullday->interval) != 0) {
-		tm_lower.tm_min -= tm_lower.tm_min % fullday->interval; /* round down */
-		mktime (&tm_lower);
-	}
+	fullday->up_down_cursor = gdk_cursor_new (GDK_DOUBLE_ARROW);
+	fullday->beam_cursor = gdk_cursor_new (GDK_XTERM);
 
-	/* Upper */
+	for (children = fullday->children; children; children = children->next)
+		child_realize (fullday, children->data);
+}
 
-	tm_upper = *localtime (&fullday->upper);
+static void
+gncal_full_day_unrealize (GtkWidget *widget)
+{
+	GncalFullDay *fullday;
+	GList *children;
 
-	if ((tm_upper.tm_min % fullday->interval) != 0) {
-		tm_upper.tm_min += fullday->interval - (tm_upper.tm_min % fullday->interval); /* round up */
-		mktime (&tm_upper);
-	}
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (GNCAL_IS_FULL_DAY (widget));
 
-	if (lower)
-		*lower = tm_lower;
+	fullday = GNCAL_FULL_DAY (widget);
 
-	if (upper)
-		*upper = tm_upper;
+	for (children = fullday->children; children; children = children->next)
+		child_unrealize (fullday, children->data);
 
-	lmin = 60 * tm_lower.tm_hour + tm_lower.tm_min;
-	umin = 60 * tm_upper.tm_hour + tm_upper.tm_min;
+	gdk_cursor_destroy (fullday->up_down_cursor);
+	fullday->up_down_cursor = NULL;
 
-	if (umin == 0) /* midnight of next day? */
-		umin = 60 * 24;
+	gdk_cursor_destroy (fullday->beam_cursor);
+	fullday->beam_cursor = NULL;
 
-	return (umin - lmin) / fullday->interval; /* number of rows in view */
+	if (GTK_WIDGET_CLASS (parent_class)->unrealize)
+		(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 }
 
-static int
-calc_labels_width (GncalFullDay *fullday)
+static void
+gncal_full_day_draw (GtkWidget *widget, GdkRectangle *area)
 {
-	struct tm cur, upper;
-	time_t tim, time_upper;
-	int width, max_w;
-	char buf[256];
-
-	get_tm_bounds (fullday, &cur, &upper);
-
-	max_w = 0;
-
-	tim = mktime (&cur);
-	time_upper = mktime (&upper);
-
-	while (tim < time_upper) {
-		strftime (buf, 256, "%X", &cur);
+	GncalFullDay *fullday;
 
-		width = gdk_string_width (GTK_WIDGET (fullday)->style->font, buf);
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (GNCAL_IS_FULL_DAY (widget));
+	g_return_if_fail (area != NULL);
 
-		if (width > max_w)
-			max_w = width;
+	if (!GTK_WIDGET_DRAWABLE (widget))
+		return;
 
-		cur.tm_min += fullday->interval;
-		tim = mktime (&cur);
-	}
+	fullday = GNCAL_FULL_DAY (widget);
 
-	return max_w;
+	/* FIXME */
 }
 
 static void
@@ -216,7 +699,7 @@ gncal_full_day_size_request (GtkWidget *widget, GtkRequisition *requisition)
 
 	/* Rows */
 
-	rows = get_tm_bounds (fullday, NULL, NULL);
+	get_tm_range (fullday, fullday->lower, fullday->upper, NULL, NULL, NULL, &rows);
 
 	requisition->height += (rows * (2 * TEXT_BORDER + widget->style->font->ascent + widget->style->font->descent)
 				+ (rows - 1)); /* division lines */
@@ -225,18 +708,220 @@ gncal_full_day_size_request (GtkWidget *widget, GtkRequisition *requisition)
 static void
 gncal_full_day_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 {
+	GncalFullDay *fullday;
+
 	g_return_if_fail (widget != NULL);
 	g_return_if_fail (GNCAL_IS_FULL_DAY (widget));
 	g_return_if_fail (allocation != NULL);
 
 	widget->allocation = *allocation;
 
+	fullday = GNCAL_FULL_DAY (widget);
+
 	if (GTK_WIDGET_REALIZED (widget))
 		gdk_window_move_resize (widget->window,
 					allocation->x, allocation->y,
 					allocation->width, allocation->height);
 
-	/* FIXME: adjust children */
+	layout_children (fullday);
+}
+
+static Child *
+find_child_by_window (GncalFullDay *fullday, GdkWindow *window)
+{
+	GList *children;
+	Child *child;
+
+	for (children = fullday->children; children; children = children->next) {
+		child = children->data;
+
+		if (child->window == window)
+			return child;
+	}
+
+	return NULL;
+}
+
+static void
+draw_xor_rect (GncalFullDay *fullday)
+{
+	GtkWidget *widget;
+	struct drag_info *di;
+	int i;
+
+	widget = GTK_WIDGET (fullday);
+
+	gdk_gc_set_function (widget->style->white_gc, GDK_INVERT);
+	gdk_gc_set_subwindow (widget->style->white_gc, GDK_INCLUDE_INFERIORS);
+
+	di = fullday->drag_info;
+
+	for (i = 0; i < XOR_RECT_WIDTH; i++)
+		gdk_draw_rectangle (widget->window,
+				    widget->style->white_gc,
+				    FALSE,
+				    di->child->x + i,
+				    di->new_y + i,
+				    di->child->width - 2 * i - 1,
+				    di->new_height - 2 * i - 1);
+
+	gdk_gc_set_function (widget->style->white_gc, GDK_COPY);
+	gdk_gc_set_subwindow (widget->style->white_gc, GDK_CLIP_BY_CHILDREN);
+}
+
+static gint
+gncal_full_day_button_press (GtkWidget *widget, GdkEventButton *event)
+{
+	GncalFullDay *fullday;
+	Child *child;
+	struct drag_info *di;
+	gint y;
+
+	g_return_val_if_fail (widget != NULL, FALSE);
+	g_return_val_if_fail (GNCAL_IS_FULL_DAY (widget), FALSE);
+	g_return_val_if_fail (event != NULL, FALSE);
+
+	fullday = GNCAL_FULL_DAY (widget);
+
+	if (event->window == widget->window)
+		return FALSE; /* FIXME: do range selection thing */
+	else {
+		child = find_child_by_window (fullday, event->window);
+
+		if (!child)
+			return FALSE;
+
+		di = fullday->drag_info;
+
+		di->child = child;
+
+		gtk_widget_get_pointer (widget, NULL, &y);
+
+		if (event->y < HANDLE_SIZE)
+			di->drag_mode = DRAG_MOVE;
+		else
+			di->drag_mode = DRAG_SIZE;
+
+		di->new_y = child->y;
+		di->new_height = child->height;
+
+		gdk_pointer_grab (child->window, FALSE,
+				  (GDK_BUTTON_MOTION_MASK
+				   | GDK_POINTER_MOTION_HINT_MASK
+				   | GDK_BUTTON_RELEASE_MASK),
+				  NULL,
+				  NULL,
+				  event->time);
+
+		draw_xor_rect (fullday);
+	}
+
+	return FALSE;
+}
+
+static void
+recompute_motion (GncalFullDay *fullday, int y)
+{
+	GtkWidget *widget;
+	struct drag_info *di;
+	int rows, row_height;
+	int ythickness;
+
+	widget = GTK_WIDGET (fullday);
+
+	get_tm_range (fullday, fullday->lower, fullday->upper, NULL, NULL, NULL, &rows);
+
+	ythickness = widget->style->klass->ythickness;
+
+	row_height = (widget->allocation.height - 2 * ythickness) / rows;
+
+	y -= ythickness;
+	y = (y + row_height / 2) / row_height; /* round to nearest bound */
+	y = y * row_height + ythickness;
+
+	di = fullday->drag_info;
+
+	switch (di->drag_mode) {
+	case DRAG_MOVE:
+		if (y < ythickness)
+			y = ythickness;
+		else if (y >= (ythickness + rows * row_height - di->new_height))
+			y = ythickness + rows * row_height - di->new_height;
+
+		di->new_y = y;
+
+		break;
+		
+	case DRAG_SIZE:
+		if (y <= di->child->y)
+			y = di->child->y + row_height;
+		else if (y >= (ythickness + rows * row_height))
+			y = ythickness + rows * row_height;
+
+		di->new_height = y - di->new_y;
+
+		break;
+
+	default:
+		g_assert_not_reached ();
+	}
+}
+
+static gint
+gncal_full_day_button_release (GtkWidget *widget, GdkEventButton *event)
+{
+	GncalFullDay *fullday;
+	struct drag_info *di;
+	gint y;
+
+	g_return_val_if_fail (widget != NULL, FALSE);
+	g_return_val_if_fail (GNCAL_IS_FULL_DAY (widget), FALSE);
+	g_return_val_if_fail (event != NULL, FALSE);
+
+	fullday = GNCAL_FULL_DAY (widget);
+
+	di = fullday->drag_info;
+
+	if (!di->child || (event->window != di->child->window))
+		return FALSE;
+
+	gtk_widget_get_pointer (widget, NULL, &y);
+
+	draw_xor_rect (fullday);
+	recompute_motion (fullday, y);
+	gdk_pointer_ungrab (event->time);
+
+	/* FIXME: update child, notify, etc. */
+
+	di->child = NULL;
+
+	return FALSE;
+}
+
+static gint
+gncal_full_day_motion (GtkWidget *widget, GdkEventMotion *event)
+{
+	GncalFullDay *fullday;
+	struct drag_info *di;
+	gint y;
+
+	g_return_val_if_fail (widget != NULL, FALSE);
+	g_return_val_if_fail (GNCAL_IS_FULL_DAY (widget), FALSE);
+	g_return_val_if_fail (event != NULL, FALSE);
+
+	fullday = GNCAL_FULL_DAY (widget);
+	di = fullday->drag_info;
+
+	if (!di->child || (event->window != di->child->window))
+		return FALSE;
+
+	gtk_widget_get_pointer (widget, NULL, &y);
+	
+	draw_xor_rect (fullday);
+	recompute_motion (fullday, y);
+	draw_xor_rect (fullday);
+
+	return FALSE;
 }
 
 static void
@@ -296,11 +981,11 @@ paint_back (GncalFullDay *fullday, GdkRectangle *area)
 
 	/* Horizontal divisions */
 
-	rows = get_tm_bounds (fullday, &tm, NULL);
+	get_tm_range (fullday, fullday->lower, fullday->upper, &tm, NULL, NULL, &rows);
 
-	row_height = height / rows; /* includes division line */
+	row_height = height / rows; /* includes division line at bottom of row */
 
-	y = row_height;
+	y = y1 + row_height - 1;
 
 	for (i = 1; i < rows; i++) {
 		gdk_draw_line (widget->window,
@@ -315,6 +1000,8 @@ paint_back (GncalFullDay *fullday, GdkRectangle *area)
 
 	y = y1 + ((row_height - 1) - (widget->style->font->ascent + widget->style->font->descent)) / 2;
 
+	rect.height = row_height - 1;
+
 	for (i = 0; i < rows; i++) {
 		mktime (&tm);
 
@@ -340,6 +1027,8 @@ static gint
 gncal_full_day_expose (GtkWidget *widget, GdkEventExpose *event)
 {
 	GncalFullDay *fullday;
+	GList *children;
+	Child *child;
 
 	g_return_val_if_fail (widget != NULL, FALSE);
 	g_return_val_if_fail (GNCAL_IS_FULL_DAY (widget), FALSE);
@@ -352,19 +1041,90 @@ gncal_full_day_expose (GtkWidget *widget, GdkEventExpose *event)
 
 	if (event->window == widget->window)
 		paint_back (fullday, &event->area);
-
-	/* FIXME: paint handles in windows if event->window == blah blah */
+	else
+		for (children = fullday->children; children; children = children->next) {
+			child = children->data;
+
+			if (event->window == child->window) {
+				child_draw (fullday, child, &event->area, FALSE);
+				break;
+			}
+		}
 
 	return FALSE;
 }
 
+static void
+gncal_full_day_foreach (GtkContainer *container, GtkCallback callback, gpointer callback_data)
+{
+	GncalFullDay *fullday;
+	GList *children;
+	Child *child;
+
+	g_return_if_fail (container != NULL);
+	g_return_if_fail (GNCAL_IS_FULL_DAY (container));
+	g_return_if_fail (callback != NULL);
+
+	fullday = GNCAL_FULL_DAY (container);
+
+	for (children = fullday->children; children; children = children->next) {
+		child = children->data;
+
+		(*callback) (child->widget, callback_data);
+	}
+}
+
 void
 gncal_full_day_update (GncalFullDay *fullday)
 {
+	GList *children;
+	GList *l_events, *events;
+	Child *child;
+
 	g_return_if_fail (fullday != NULL);
 	g_return_if_fail (GNCAL_IS_FULL_DAY (fullday));
 
-	/* FIXME */
+	if (!fullday->calendar->cal)
+		return;
+
+	l_events = calendar_get_events_in_range (fullday->calendar->cal,
+						 fullday->lower,
+						 fullday->upper,
+						 calendar_compare_by_dtstart);
+
+	/* FIXME: this is expensive and looks ugly -- use some form of cache? */
+
+	for (children = fullday->children; children; children = children->next)
+		child_destroy (fullday, children->data);
+
+	g_list_free (fullday->children);
+
+	children = NULL;
+
+	for (events = l_events; events; events = events->next) {
+		child = child_new (fullday, events->data);
+		children = g_list_append (children, child);
+	}
+
+	g_list_free (l_events);
+
+	fullday->children = g_list_first (children);
+
+	layout_children (fullday);
+
+	/* Realize and map children */
+
+	for (children = fullday->children; children; children = children->next) {
+		if (GTK_WIDGET_REALIZED (fullday))
+			child_realize (fullday, children->data);
+
+		if (GTK_WIDGET_MAPPED (fullday))
+			child_map (fullday, children->data);
+	}
+
+	/* FIXME: paint or something */
+
+	gtk_widget_draw (GTK_WIDGET (fullday), NULL);
 }
 
 void