[gnome-calendar] gcal-view: modified mark_current_unit API

[Erick Pérez Castellanos <erickpc src gnome org>]

commit a24eca038627954640e8c2dee7bc060dfd06c6bb
Author: Erick Pérez Castellanos <erick red gmail com>
Date:   Sun Jun 30 17:37:14 2013 -0400

    gcal-view: modified mark_current_unit API
    
    Added x,y return values, positions of the current unit

 src/gcal-month-view.c |   33 +++++++++++++++++++++++++++++----
 src/gcal-view.c       |   13 +++++++++----
 src/gcal-view.h       |    6 ++++--
 3 files changed, 42 insertions(+), 10 deletions(-)
---
diff --git a/src/gcal-month-view.c b/src/gcal-month-view.c
index c36c7f9..45ad535 100644
--- a/src/gcal-month-view.c
+++ b/src/gcal-month-view.c
@@ -114,7 +114,9 @@ static icaltimetype*  gcal_month_view_get_initial_date      (GcalView       *vie
 
 static icaltimetype*  gcal_month_view_get_final_date        (GcalView       *view);
 
-static void           gcal_month_view_mark_current_unit     (GcalView       *view);
+static void           gcal_month_view_mark_current_unit     (GcalView       *view,
+                                                             gint           *x,
+                                                             gint           *y);
 
 static void           gcal_month_view_clear_marks           (GcalView       *view);
 
@@ -1162,26 +1164,49 @@ gcal_month_view_get_final_date (GcalView *view)
   new_date->day = icaltime_days_in_month (priv->date->month, priv->date->year);
   return new_date;
 }
+
 static void
-gcal_month_view_mark_current_unit (GcalView *view)
+gcal_month_view_mark_current_unit (GcalView *view,
+                                   gint     *x,
+                                   gint     *y)
 {
   GcalMonthViewPrivate *priv;
 
+  gdouble horizontal_block;
+  gdouble vertical_block;
+
   gint days;
   gint shown_rows;
   gint february_gap;
+  gdouble lines_gap;
+  gdouble lines_gap_for_5;
+
+  gint x_pos, y_pos;
+  gdouble start_grid_y;
 
   priv = gcal_month_view_get_instance_private (GCAL_MONTH_VIEW (view));
+  start_grid_y = gcal_month_view_get_start_grid_y (GTK_WIDGET (view));
+  horizontal_block = (gdouble) gtk_widget_get_allocated_width (GTK_WIDGET (view)) / 7.0;
+  vertical_block = (gdouble) (gtk_widget_get_allocated_height (GTK_WIDGET (view)) - start_grid_y) / 6.0;
 
-  days = priv->days_delay + icaltime_days_in_month (priv->date->month,
-                                                    priv->date->year);
+  days = priv->days_delay + icaltime_days_in_month (priv->date->month, priv->date->year);
   shown_rows = ceil (days / 7.0);
   february_gap = shown_rows == 4 ? 1 : 0;
+  lines_gap = ((gdouble) (shown_rows + 1) / 2.0) + 0.5 - ceil (shown_rows / 2.0);
+  lines_gap_for_5 = shown_rows == 5 ? lines_gap : 0;
 
   priv->start_mark_cell = priv->date->day + 7 * february_gap + priv->days_delay - 1;
   priv->end_mark_cell = priv->start_mark_cell;
 
+  x_pos = horizontal_block * (( priv->end_mark_cell % 7) + 0.5);
+  y_pos = start_grid_y + vertical_block * (lines_gap_for_5 + ( priv->end_mark_cell / 7) + 0.5);
+
   gtk_widget_queue_draw (GTK_WIDGET (view));
+
+  if (x != NULL)
+    *x = x_pos;
+  if (y != NULL)
+    *y = y_pos;
 }
 
 static void
diff --git a/src/gcal-view.c b/src/gcal-view.c
index 5bb22f3..819f4a0 100644
--- a/src/gcal-view.c
+++ b/src/gcal-view.c
@@ -159,17 +159,22 @@ gcal_view_get_final_date (GcalView *view)
 
 /**
  * gcal_view_mark_current_unit:
- * @view: a #GcalView
+ * @view: a #GcalView implementation
+ * @x: the x position of the current unit. Returned by the view
+ * @y: the y position of the current unit. Returned by the view
  *
- * Mark the current unit in the view as marked for event creation
+ * Mark the current unit in the view as marked for event creation.
+ * The (x, y) pair returned is the center of the cell
  **/
 void
-gcal_view_mark_current_unit (GcalView *view)
+gcal_view_mark_current_unit (GcalView *view,
+                             gint     *x,
+                             gint     *y)
 {
   g_return_if_fail (GCAL_IS_VIEW (view));
   g_return_if_fail (GCAL_VIEW_GET_INTERFACE (view)->mark_current_unit);
 
-  GCAL_VIEW_GET_INTERFACE (view)->mark_current_unit (view);
+  GCAL_VIEW_GET_INTERFACE (view)->mark_current_unit (view, x, y);
 }
 
 /**
diff --git a/src/gcal-view.h b/src/gcal-view.h
index 6fba997..81d8dad 100644
--- a/src/gcal-view.h
+++ b/src/gcal-view.h
@@ -62,7 +62,7 @@ struct _GcalViewIface
   icaltimetype*   (*get_final_date)                     (GcalView *view);
 
   /* Marks related API */
-  void            (*mark_current_unit)                  (GcalView     *view);
+  void            (*mark_current_unit)                  (GcalView     *view, gint *x, gint *y);
   void            (*clear_marks)                        (GcalView     *view);
 
   /* Update NavBar headings */
@@ -94,7 +94,9 @@ icaltimetype* gcal_view_get_initial_date              (GcalView     *view);
 
 icaltimetype* gcal_view_get_final_date                (GcalView     *view);
 
-void          gcal_view_mark_current_unit             (GcalView     *view);
+void          gcal_view_mark_current_unit             (GcalView     *view,
+                                                       gint         *x,
+                                                       gint         *y);
 
 void          gcal_view_clear_marks                   (GcalView     *view);