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authorFederico Mena Quintero <federico@nuclecu.unam.mx>1998-10-10 09:42:45 +0800
committerArturo Espinosa <unammx@src.gnome.org>1998-10-10 09:42:45 +0800
commit548c52f284b48fabbda3795838293a0a5ba63bea (patch)
tree4ed4bfa576fd2116124580b721c88082db0a16f0 /calendar/gui/month-view.c
parente1dccc7c4f58b419b0ef66728a717783643806ae (diff)
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Create a list of children and lay them out nicely. Lots of functions added
1998-10-09 Federico Mena Quintero <federico@nuclecu.unam.mx> * month-view.c (month_view_update): Create a list of children and lay them out nicely. Lots of functions added for this purpose. (adjust_segment): Main event segment adjustment routine. (adjust_children): Adjusts all the children in the month view. (child_create_segments): Creates the segments for a particular event. (layout_children): Uses the generic layout engine to organize the children. svn path=/trunk/; revision=438
Diffstat (limited to 'calendar/gui/month-view.c')
-rw-r--r--calendar/gui/month-view.c208
1 files changed, 198 insertions, 10 deletions
diff --git a/calendar/gui/month-view.c b/calendar/gui/month-view.c
index 0e0c706a25..6c425ecfeb 100644
--- a/calendar/gui/month-view.c
+++ b/calendar/gui/month-view.c
@@ -7,6 +7,7 @@
#include <config.h>
#include <libgnomeui/gnome-canvas-text.h>
+#include "layout.h"
#include "month-view.h"
#include "main.h"
#include "mark.h"
@@ -22,6 +23,8 @@
struct child {
iCalObject *ico; /* The calendar object this child refers to */
time_t start, end; /* Start and end times for the instance of the event */
+ int slot_start; /* The first slot this child uses */
+ int slots_used; /* The number of slots occupied by this child */
GList *segments; /* The list of segments needed to display this child */
};
@@ -46,13 +49,6 @@ static void month_view_size_allocate (GtkWidget *widget,
static GnomeCanvasClass *parent_class;
-/* Adjusts the child events of the month view to the appropriate size and position */
-static void
-adjust_children (MonthView *mv)
-{
-
-}
-
GtkType
month_view_get_type (void)
{
@@ -147,6 +143,89 @@ month_view_size_request (GtkWidget *widget, GtkRequisition *requisition)
requisition->height = 150;
}
+/* Adjusts a single segment from a child */
+static void
+adjust_segment (MonthView *mv, struct child *child, struct segment *seg)
+{
+ struct tm start, end;
+ GnomeCanvasItem *start_item, *end_item;
+ GnomeCanvasItem *item;
+ int start_day_index, end_day_index;
+ double ix1, iy1, ix2, iy2;
+ double ly2;
+ double width, height;
+ time_t day_begin, day_end;
+ double start_factor, end_factor;
+ double slot_height;
+
+ /* Find the days that the segment intersects and get their bounds */
+
+ start = *localtime (&seg->start);
+ end = *localtime (&seg->end);
+
+ start_day_index = gnome_month_item_day2index (GNOME_MONTH_ITEM (mv->mitem), start.tm_mday);
+ g_assert (start_day_index != -1);
+
+ end_day_index = gnome_month_item_day2index (GNOME_MONTH_ITEM (mv->mitem), end.tm_mday);
+ g_assert (end_day_index != -1);
+
+ start_item = gnome_month_item_num2child (GNOME_MONTH_ITEM (mv->mitem),
+ start_day_index + GNOME_MONTH_ITEM_DAY_GROUP);
+ end_item = gnome_month_item_num2child (GNOME_MONTH_ITEM (mv->mitem),
+ end_day_index + GNOME_MONTH_ITEM_DAY_GROUP);
+
+ gnome_canvas_item_get_bounds (start_item, &ix1, &iy1, NULL, &iy2);
+ gnome_canvas_item_get_bounds (end_item, NULL, NULL, &ix2, NULL);
+
+ /* Get the lower edge of the day label */
+
+ item = gnome_month_item_num2child (GNOME_MONTH_ITEM (mv->mitem), start_day_index + GNOME_MONTH_ITEM_DAY_LABEL);
+ gnome_canvas_item_get_bounds (item, NULL, NULL, NULL, &ly2);
+
+ /* Calculate usable space */
+
+ iy1 += ly2;
+ width = ix2 - ix1;
+ height = iy2 - iy1;
+
+ /* Set the segment's item coordinates */
+
+ day_begin = time_day_begin (seg->start);
+ day_end = time_day_end (seg->end);
+
+ start_factor = (double) (seg->start - day_begin) / (day_end - day_begin);
+ end_factor = (double) (seg->end - day_begin) / (day_end - day_begin);
+
+ slot_height = height / mv->num_slots;
+
+ gnome_canvas_item_set (seg->item,
+ "x1", ix1 + width * start_factor,
+ "y1", iy1 + slot_height * child->slot_start,
+ "x2", ix1 + width * end_factor,
+ "y2", iy1 + slot_height * (child->slot_start + child->slots_used),
+ NULL);
+}
+
+/* Adjusts the child events of the month view to the appropriate size and position */
+static void
+adjust_children (MonthView *mv)
+{
+ GList *children;
+ struct child *child;
+ GList *segments;
+ struct segment *seg;
+
+ for (children = mv->children; children; children = children->next) {
+ child = children->data;
+
+ for (segments = child->segments; segments; segments = segments->next) {
+ seg = segments->data;
+
+ adjust_segment (mv, child, seg);
+ }
+ }
+}
+
static void
month_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
{
@@ -193,7 +272,19 @@ month_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
static void
child_destroy (MonthView *mv, struct child *child)
{
- /* FIXME: destroy the list of segments */
+ GList *list;
+ struct segment *seg;
+
+ /* Destroy the segments */
+
+ for (list = child->segments; list; list = list->next) {
+ seg = list->data;
+
+ gtk_object_destroy (GTK_OBJECT (seg->item));
+ g_free (seg);
+ }
+
+ g_list_free (child->segments);
/* Destroy the child */
@@ -208,7 +299,61 @@ child_destroy (MonthView *mv, struct child *child)
static void
child_create_segments (MonthView *mv, struct child *child)
{
- /* FIXME */
+ time_t t;
+ time_t month_begin, month_end;
+ time_t week_begin, week_end;
+ time_t left, right;
+ struct segment *seg;
+
+ /* Get the month's extents */
+
+ t = time_from_day (mv->year, mv->month, 1);
+ month_begin = time_month_begin (t);
+ month_end = time_month_end (t);
+
+ /* Get the first week of the event */
+
+ t = MAX (child->start, month_begin);
+ week_begin = time_week_begin (t);
+
+ if (week_starts_on_monday)
+ time_add_day (week_begin, 1);
+
+ week_end = time_add_week (week_begin, 1);
+
+ /* Loop until the event ends or the month ends -- the segments list is created in reverse
+ * order.
+ */
+
+ do {
+ seg = g_new (struct segment, 1);
+
+ /* Clip the child to this week */
+
+ left = MAX (week_begin, month_begin);
+ right = MIN (week_end, month_end);
+
+ seg->start = MAX (child->start, left);
+ seg->end = MIN (child->end, right);
+
+ seg->item = gnome_canvas_item_new (GNOME_CANVAS_GROUP (mv->mitem),
+ gnome_canvas_rect_get_type (),
+ "fill_color", color_spec_from_prop (COLOR_PROP_MARK_DAY_BG),
+ "outline_color", "black",
+ "width_pixels", 0,
+ NULL);
+
+ child->segments = g_list_prepend (child->segments, seg);
+
+ /* Next week */
+
+ week_begin = time_add_week (week_begin, 1);
+ week_end = time_add_week (week_end, 1);
+ } while ((child->end > week_begin) && (week_begin < month_end));
+
+ /* Reverse the list to put it in increasing order */
+
+ child->segments = g_list_reverse (child->segments);
}
/* Comparison function used to create the sorted list of children. Sorts first by increasing start
@@ -253,6 +398,45 @@ add_event (iCalObject *ico, time_t start, time_t end, void *data)
/* Add it to the list of children */
mv->children = g_list_insert_sorted (mv->children, child, child_compare);
+
+ return TRUE; /* means "we are not yet finished" */
+}
+
+/* Time query function for the layout engine */
+static void
+child_query_func (GList *list, time_t *start, time_t *end)
+{
+ struct child *child;
+
+ child = list->data;
+
+ *start = child->start;
+ *end = child->end;
+}
+
+/* Uses the generic event layout engine to set the children's layout information */
+static void
+layout_children (MonthView *mv)
+{
+ GList *list;
+ struct child *child;
+ int *allocations;
+ int *slots;
+ int i;
+
+ layout_events (mv->children, child_query_func, &mv->num_slots, &allocations, &slots);
+
+ if (mv->num_slots == 0)
+ return;
+
+ for (list = mv->children, i = 0; list; list = list->next, i++) {
+ child = list->data;
+ child->slot_start = allocations[i];
+ child->slots_used = slots[i];
+ }
+
+ g_free (allocations);
+ g_free (slots);
}
void
@@ -280,6 +464,7 @@ month_view_update (MonthView *mv, iCalObject *object, int flags)
month_end = time_month_end (t);
calendar_iterate (mv->calendar->cal, month_begin, month_end, add_event, mv);
+ layout_children (mv);
adjust_children (mv);
}
@@ -351,8 +536,9 @@ month_view_set (MonthView *mv, time_t month)
"month", mv->month,
NULL);
- /* FIXME: update events */
+ /* Update events */
+ month_view_update (mv, NULL, 0);
mark_current_day (mv);
}
@@ -377,4 +563,6 @@ month_view_colors_changed (MonthView *mv)
colorify_month_item (GNOME_MONTH_ITEM (mv->mitem), default_color_func, NULL);
mark_current_day (mv);
+
+ /* FIXME: set children to the marked color */
}