views/dazzling-month-view: Handle events

Most of the code is copied from GcalMonthView, so it sucks
slightly. But it seems to work reasonably well so far.

src/gui/views/gcal-dazzling-month-view.c

@@ -26,6 +26,7 @@
 #include "gcal-dazzling-month-view.h"
 #include "gcal-debug.h"
 #include "gcal-month-view-row.h"
+#include "gcal-range-tree.h"
 #include "gcal-timeline-subscriber.h"
 #include "gcal-utils.h"
 #include "gcal-view-private.h"
@@ -50,6 +51,8 @@ struct _GcalDazzlingMonthView
   GtkWidget          *weekday_label[7];
 
   GPtrArray          *week_rows;
+  GcalRangeTree      *events;
+  GHashTable         *events2;
 
   /* Ranges from [0.0, 1.0] */
   gdouble             row_offset;
@@ -511,6 +514,44 @@ static void
 gcal_dazzling_month_view_add_event (GcalTimelineSubscriber *subscriber,
                                     GcalEvent              *event)
 {
+  GcalDazzlingMonthView *self;
+
+  GCAL_ENTRY;
+
+  g_assert (event != NULL);
+
+  self = GCAL_DAZZLING_MONTH_VIEW (subscriber);
+
+  if (!g_hash_table_add (self->events2, g_object_ref (event)))
+    {
+      g_warning ("Event with uuid: %s already added", gcal_event_get_uid (event));
+      GCAL_RETURN ();
+    }
+
+  for (guint i = 0; i < self->week_rows->len; i++)
+    {
+      g_autoptr (GcalRange) row_range = NULL;
+      GcalRangePosition position;
+      GcalRangeOverlap overlap;
+      GcalMonthViewRow *row;
+
+      row = g_ptr_array_index (self->week_rows, i);
+      row_range = gcal_month_view_row_get_range (row);
+
+      overlap = gcal_range_calculate_overlap (row_range, gcal_event_get_range (event), &position);
+      if (overlap != GCAL_RANGE_NO_OVERLAP)
+        {
+          g_message ("Adding event %s to row %u", gcal_event_get_uid (event), i);
+          gcal_month_view_row_add_event (row, event);
+        }
+      else
+        {
+          if (position == GCAL_RANGE_AFTER)
+            break;
+        }
+    }
+
+  GCAL_EXIT;
 }
 
 static void
@@ -523,6 +564,48 @@ static void
 gcal_dazzling_month_view_remove_event (GcalTimelineSubscriber *subscriber,
                                        GcalEvent              *event)
 {
+  g_autoptr (GcalEvent) owned_event = NULL;
+  GcalDazzlingMonthView *self;
+
+  GCAL_ENTRY;
+
+  g_assert (event != NULL);
+
+  self = GCAL_DAZZLING_MONTH_VIEW (subscriber);
+
+  /* Keep event alive while removing it */
+  owned_event = g_object_ref (event);
+
+  if (!g_hash_table_remove (self->events2, event))
+    {
+      g_warning ("Event with uuid: %s not in %s", gcal_event_get_uid (event), G_OBJECT_TYPE_NAME (self));
+      GCAL_RETURN ();
+    }
+
+  for (guint i = 0; i < self->week_rows->len; i++)
+    {
+      g_autoptr (GcalRange) row_range = NULL;
+      GcalRangePosition position;
+      GcalRangeOverlap overlap;
+      GcalMonthViewRow *row;
+
+      row = g_ptr_array_index (self->week_rows, i);
+      row_range = gcal_month_view_row_get_range (row);
+
+      overlap = gcal_range_calculate_overlap (row_range, gcal_event_get_range (event), &position);
+      if (overlap != GCAL_RANGE_NO_OVERLAP)
+        {
+          g_message ("Remove event %s to row %u", gcal_event_get_uid (event), i);
+          gcal_month_view_row_remove_event (row, event);
+        }
+      else
+        {
+          if (position == GCAL_RANGE_AFTER)
+            break;
+        }
+    }
+
+  GCAL_EXIT;
 }
 
 static void
@@ -814,6 +897,9 @@ gcal_dazzling_month_view_dispose (GObject *object)
 
   GCAL_ENTRY;
 
+  g_clear_pointer (&self->events2, g_hash_table_destroy);
+  g_clear_pointer (&self->events, gcal_range_tree_unref);
+
   g_clear_object (&self->kinetic_scroll_animation);
   g_clear_object (&self->row_offset_animation);
 
@@ -932,6 +1018,9 @@ gcal_dazzling_month_view_init (GcalDazzlingMonthView *self)
 {
   g_autoptr (GDateTime) now = NULL;
 
+  self->events = gcal_range_tree_new_with_free_func (g_object_unref);
+  self->events2 = g_hash_table_new_full (g_direct_hash, g_direct_equal, g_object_unref, NULL);
+
   gtk_widget_init_template (GTK_WIDGET (self));
   update_weekday_labels (self);