[gtk/columnview-resizing: 35/38] columnview: Add a GtkColumnViewColumn:resizable property

[Matthias Clasen <matthiasc src gnome org>]

commit f2b54ad22a37bbc0cdffcaf8aaa2394cdbd359e5
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 20 14:07:14 2019 -0500

    columnview: Add a GtkColumnViewColumn:resizable property
    
    This will be used for interactive column resizing
    in the future.

 gtk/gtkcolumnviewcolumn.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++
 gtk/gtkcolumnviewcolumn.h |  6 +++++
 2 files changed, 66 insertions(+)
---
diff --git a/gtk/gtkcolumnviewcolumn.c b/gtk/gtkcolumnviewcolumn.c
index fa0e0982bb..89157b5236 100644
--- a/gtk/gtkcolumnviewcolumn.c
+++ b/gtk/gtkcolumnviewcolumn.c
@@ -64,6 +64,7 @@ struct _GtkColumnViewColumn
   int fixed_width;
 
   guint visible : 1;
+  guint resizable : 1;
 
   GMenuModel *menu;
 
@@ -85,6 +86,7 @@ enum
   PROP_SORTER,
   PROP_VISIBLE,
   PROP_HEADER_MENU,
+  PROP_RESIZABLE,
   PROP_FIXED_WIDTH,
 
   N_PROPS
@@ -144,6 +146,10 @@ gtk_column_view_column_get_property (GObject    *object,
       g_value_set_object (value, self->menu);
       break;
 
+    case PROP_RESIZABLE:
+      g_value_set_boolean (value, self->resizable);
+      break;
+
     case PROP_FIXED_WIDTH:
       g_value_set_int (value, self->fixed_width);
       break;
@@ -184,6 +190,10 @@ gtk_column_view_column_set_property (GObject      *object,
       gtk_column_view_column_set_header_menu (self, g_value_get_object (value));
       break;
 
+    case PROP_RESIZABLE:
+      gtk_column_view_column_set_resizable (self, g_value_get_boolean (value));
+      break;
+
     case PROP_FIXED_WIDTH:
       gtk_column_view_column_set_fixed_width (self, g_value_get_int (value));
       break;
@@ -275,6 +285,18 @@ gtk_column_view_column_class_init (GtkColumnViewColumnClass *klass)
                          G_TYPE_MENU_MODEL,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
+  /**
+   * GtkColumnViewColumn:resizable:
+   *
+   * Whether this column is resizable
+   */
+  properties[PROP_RESIZABLE] =
+    g_param_spec_boolean ("resizable",
+                          P_("Resizable"),
+                          P_("Whether this column is resizable"),
+                          FALSE,
+                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
   /**
    * GtkColumnViewColumn:fixed-width:
    *
@@ -297,6 +319,7 @@ gtk_column_view_column_init (GtkColumnViewColumn *self)
   self->minimum_size_request = -1;
   self->natural_size_request = -1;
   self->visible = TRUE;
+  self->resizable = FALSE;
   self->fixed_width = -1;
 }
 
@@ -820,6 +843,43 @@ gtk_column_view_column_get_header_menu (GtkColumnViewColumn *self)
   return self->menu;
 }
 
+/**
+ * gtk_column_view_column_set_resizable:
+ * @self: a #GtkColumnViewColumn
+ * @resizable: whether this column should be resizable 
+ *
+ * Sets whether this column should be resizable by dragging.
+ */
+void
+gtk_column_view_column_set_resizable (GtkColumnViewColumn *self,
+                                      gboolean             resizable)
+{
+  g_return_if_fail (GTK_IS_COLUMN_VIEW_COLUMN (self));
+
+  if (self->resizable == resizable)
+    return;
+
+  self->resizable = resizable;
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_RESIZABLE]);
+}
+
+/**
+ * gtk_column_view_get_resizable:
+ * @self: a #GtkColumnView
+ *
+ * Returns whether this column is resizable.
+ *
+ * Returns: %TRUE if this column is resizable
+ */
+gboolean
+gtk_column_view_column_get_resizable (GtkColumnViewColumn *self)
+{
+  g_return_val_if_fail (GTK_IS_COLUMN_VIEW_COLUMN (self), TRUE);
+
+  return self->resizable;
+}
+
 /**
  * gtk_column_view_column_set_fixed_width:
  * @self: a #GtkColumnViewColumn
diff --git a/gtk/gtkcolumnviewcolumn.h b/gtk/gtkcolumnviewcolumn.h
index 6738bfe67b..459c4d372f 100644
--- a/gtk/gtkcolumnviewcolumn.h
+++ b/gtk/gtkcolumnviewcolumn.h
@@ -90,6 +90,12 @@ void                    gtk_column_view_column_set_fixed_width          (GtkColu
 GDK_AVAILABLE_IN_ALL
 int                     gtk_column_view_column_get_fixed_width          (GtkColumnViewColumn    *self);
 
+GDK_AVAILABLE_IN_ALL
+void                    gtk_column_view_column_set_resizable            (GtkColumnViewColumn    *self,
+                                                                         gboolean                resizable);
+GDK_AVAILABLE_IN_ALL
+gboolean                gtk_column_view_column_get_resizable            (GtkColumnViewColumn    *self);
+
 G_END_DECLS
 
 #endif  /* __GTK_COLUMN_VIEW_COLUMN_H__ */