[gtk/prop-list: 22/27] column: Add a visible property

[Matthias Clasen <matthiasc src gnome org>]

commit 3c673a489ee7ee7045438abb16d1f82f46391908
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Dec 16 14:01:42 2019 -0500

    column: Add a visible property
    
    This lets us hide columns, which is useful.

 docs/reference/gtk/gtk4-sections.txt |  2 +
 gtk/gtkcolumnviewcell.c              |  1 +
 gtk/gtkcolumnviewcolumn.c            | 76 ++++++++++++++++++++++++++++++++++++
 gtk/gtkcolumnviewcolumn.h            |  6 +++
 4 files changed, 85 insertions(+)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 5f8f12e970..519722c512 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -624,6 +624,8 @@ gtk_column_view_column_set_title
 gtk_column_view_column_get_title
 gtk_column_view_column_set_sorter
 gtk_column_view_column_get_sorter
+gtk_column_view_column_set_visible
+gtk_column_view_column_get_visible
 <SUBSECTION Standard>
 GTK_COLUMN_VIEW_COLUMN
 GTK_COLUMN_VIEW_COLUMN_CLASS
diff --git a/gtk/gtkcolumnviewcell.c b/gtk/gtkcolumnviewcell.c
index ecaa39dd46..4df02a0194 100644
--- a/gtk/gtkcolumnviewcell.c
+++ b/gtk/gtkcolumnviewcell.c
@@ -156,6 +156,7 @@ gtk_column_view_cell_new (GtkColumnViewColumn *column)
 
   cell = g_object_new (GTK_TYPE_COLUMN_VIEW_CELL,
                        "factory", gtk_column_view_column_get_factory (column),
+                       "visible", gtk_column_view_column_get_visible (column),
                        NULL);
 
   cell->column = g_object_ref (column);
diff --git a/gtk/gtkcolumnviewcolumn.c b/gtk/gtkcolumnviewcolumn.c
index 81b88a725a..28ed144268 100644
--- a/gtk/gtkcolumnviewcolumn.c
+++ b/gtk/gtkcolumnviewcolumn.c
@@ -61,6 +61,8 @@ struct _GtkColumnViewColumn
   int allocation_offset;
   int allocation_size;
 
+  gboolean visible;
+
   /* This list isn't sorted - this is just caching for performance */
   GtkColumnViewCell *first_cell; /* no reference, just caching */
 };
@@ -77,6 +79,7 @@ enum
   PROP_FACTORY,
   PROP_TITLE,
   PROP_SORTER,
+  PROP_VISIBLE,
 
   N_PROPS
 };
@@ -126,6 +129,10 @@ gtk_column_view_column_get_property (GObject    *object,
       g_value_set_object (value, self->sorter);
       break;
 
+    case PROP_VISIBLE:
+      g_value_set_boolean (value, self->visible);
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -154,6 +161,10 @@ gtk_column_view_column_set_property (GObject      *object,
       gtk_column_view_column_set_sorter (self, g_value_get_object (value));
       break;
 
+    case PROP_VISIBLE:
+      gtk_column_view_column_set_visible (self, g_value_get_boolean (value));
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -212,6 +223,18 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
                          GTK_TYPE_SORTER,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
+  /**
+   * GtkColumnViewColumn:visible:
+   *
+   * Whether this column is visible
+   */
+  properties[PROP_VISIBLE] =
+    g_param_spec_boolean ("visible",
+                          P_("Visible"),
+                          P_("Whether this column is visible"),
+                          TRUE,
+                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
   g_object_class_install_properties (gobject_class, N_PROPS, properties);
 }
 
@@ -220,6 +243,7 @@ gtk_column_view_column_init (GtkColumnViewColumn *self)
 {
   self->minimum_size_request = -1;
   self->natural_size_request = -1;
+  self->visible = TRUE;
 }
 
 /**
@@ -642,3 +666,55 @@ gtk_column_view_column_notify_sort (GtkColumnViewColumn *self)
   if (self->header)
     gtk_column_view_title_update (GTK_COLUMN_VIEW_TITLE (self->header));
 }
+
+/**
+ * gtk_column_view_column_set_visible:
+ * @self: a #GtkColumnViewColumn
+ * @visible: whether this column should be visible
+ *
+ * Sets whether this column should be visible in views.
+ */
+void
+gtk_column_view_column_set_visible (GtkColumnViewColumn *self,
+                                    gboolean             visible)
+{
+  GtkColumnViewCell *cell;
+
+  g_return_if_fail (GTK_IS_COLUMN_VIEW_COLUMN (self));
+
+  if (self->visible == visible)
+    return;
+
+  self->visible = visible;
+
+  self->minimum_size_request = -1;
+  self->natural_size_request = -1;
+
+  if (self->header)
+    gtk_widget_set_visible (GTK_WIDGET (self->header), visible);
+
+  for (cell = self->first_cell; cell; cell = gtk_column_view_cell_get_next (cell))
+    {
+      gtk_widget_set_visible (GTK_WIDGET (cell), visible);
+    }
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_VISIBLE]);
+}
+
+/**
+ * gtk_column_view_get_visible:
+ * @self: a #GtkColumnView
+ *
+ * Returns whether this column is visible.
+ *
+ * Returns: %TRUE if this column is visible
+ */
+gboolean
+gtk_column_view_column_get_visible (GtkColumnViewColumn *self)
+{
+  g_return_val_if_fail (GTK_IS_COLUMN_VIEW_COLUMN (self), TRUE);
+
+  return self->visible;
+}
+
+
diff --git a/gtk/gtkcolumnviewcolumn.h b/gtk/gtkcolumnviewcolumn.h
index f74cedaa08..f0005809be 100644
--- a/gtk/gtkcolumnviewcolumn.h
+++ b/gtk/gtkcolumnviewcolumn.h
@@ -72,6 +72,12 @@ void                    gtk_column_view_column_set_sorter               (GtkColu
 GDK_AVAILABLE_IN_ALL
 GtkSorter *             gtk_column_view_column_get_sorter               (GtkColumnViewColumn    *self);
 
+GDK_AVAILABLE_IN_ALL
+void                    gtk_column_view_column_set_visible              (GtkColumnViewColumn    *self,
+                                                                         gboolean                visible);
+GDK_AVAILABLE_IN_ALL
+gboolean                gtk_column_view_column_get_visible              (GtkColumnViewColumn    *self);
+
 G_END_DECLS
 
 #endif  /* __GTK_COLUMN_VIEW_COLUMN_H__ */