Implemented the recode dialogs.

[pspp-builds.git] / src / ui / gui / psppire-selector.c

diff --git a/src/ui/gui/psppire-selector.c b/src/ui/gui/psppire-selector.c
index 7f34baebafcbcbad1ff98535aa30f1fdcb293a4e..bd990de8b2b6c4e7b18d4ce793ec53711e8ec5c7 100644 (file)
--- a/src/ui/gui/psppire-selector.c
+++ b/src/ui/gui/psppire-selector.c
@@ -126,6 +126,9 @@ enum
 };
 
 
+static void on_activate (PsppireSelector *selector, gpointer data);
+
+
 static void
 psppire_selector_set_property (GObject         *object,
                               guint            prop_id,
@@ -230,16 +233,23 @@ psppire_selector_base_finalize(PsppireSelectorClass *class,
 }
 
 
+
 static void
 psppire_selector_init (PsppireSelector *selector)
 {
   selector->arrow = gtk_arrow_new (GTK_ARROW_LEFT, GTK_SHADOW_NONE);
   selector->filtered_source = NULL;
 
+  selector->action = gtk_action_new ("select", NULL, NULL, NULL);
+
+  gtk_action_connect_proxy (selector->action, GTK_WIDGET (selector));
+
   gtk_container_add (GTK_CONTAINER (selector), selector->arrow);
 
   gtk_widget_show (selector->arrow);
 
+  g_signal_connect_swapped (selector->action, "activate", G_CALLBACK (on_activate), selector);
+
   selector->selecting = FALSE;
 }
 
@@ -311,9 +321,14 @@ on_source_select (GtkTreeSelection *treeselection, gpointer data)
 
   set_direction (selector, PSPPIRE_SELECTOR_SOURCE_TO_DEST);
 
-  if ( GTK_IS_ENTRY (selector->dest) )
+  if ( selector->allow_selection )
     {
-      gtk_widget_set_sensitive (GTK_WIDGET (selector),
+      gtk_action_set_sensitive (selector->action,
+                               selector->allow_selection (selector->source, selector->dest));
+    }
+  else if ( GTK_IS_ENTRY (selector->dest) )
+    {
+      gtk_action_set_sensitive (selector->action,
                                gtk_tree_selection_count_selected_rows
                                (treeselection) <= 1 );
     }
@@ -325,6 +340,8 @@ on_dest_treeview_select (GtkTreeSelection *treeselection, gpointer data)
 {
   PsppireSelector *selector = data;
 
+  gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (selector->source)));
+
   set_direction (selector, PSPPIRE_SELECTOR_DEST_TO_SOURCE);
 }
 
@@ -470,12 +487,14 @@ on_row_activate (GtkTreeView       *tree_view,
 {
   PsppireSelector *selector  = data;
 
-  select_selection (selector);
+  gtk_action_activate (selector->action);
 }
 
-/* Callback for when the selector button is clicked */
+/* Callback for when the selector button is clicked,
+   or other event which causes the selector's action to occur.
+ */
 static void
-on_click (PsppireSelector *selector, gpointer data)
+on_activate (PsppireSelector *selector, gpointer data)
 {
   switch (selector->direction)
     {
@@ -673,13 +692,15 @@ set_tree_view_dest (PsppireSelector *selector,
 
 }
 
-/* Callback for when the DEST GtkEntry is activated (Enter is pressed) */
-static void
-on_entry_activate (GtkEntry *w, gpointer data)
+/* Callback which causes the filter to be refiltered.
+   Called when the DEST GtkEntry is activated (Enter is pressed), or when it
+   looses focus.
+*/
+static gboolean
+refilter (PsppireSelector *selector)
 {
-  PsppireSelector * selector = data;
-
   gtk_tree_model_filter_refilter (selector->filtered_source);
+  return FALSE;
 }
 
 /* Callback for when the DEST GtkEntry is selected (clicked) */
@@ -688,21 +709,59 @@ on_entry_dest_select (GtkWidget *widget, GdkEventFocus *event, gpointer data)
 {
   PsppireSelector * selector = data;
 
+  gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (selector->source)));
   set_direction (selector, PSPPIRE_SELECTOR_DEST_TO_SOURCE);
 
   return FALSE;
 }
 
+
+
+/* Callback for when an item disappears from the source list.
+   By implication, this means that the item has been inserted into the
+   destination.
+ */
+static void
+on_row_deleted (PsppireSelector *selector)
+{
+  g_signal_emit (selector, signals [SELECTED], 0);
+}
+
+/* Callback for when a new item appears in the source list.
+   By implication, this means that an item has been deleted from the
+   destination.
+ */
+static void
+on_row_inserted (PsppireSelector *selector)
+{
+  g_signal_emit (selector, signals [DE_SELECTED], 0);
+}
+
+
+
 /* Set DEST to be the destination GtkEntry widget */
 static void
 set_entry_dest (PsppireSelector *selector,
                GtkEntry *dest)
 {
-  g_signal_connect (dest, "activate", G_CALLBACK (on_entry_activate),
+  g_signal_connect_swapped (dest, "activate", G_CALLBACK (refilter),
+                   selector);
+
+  g_signal_connect_swapped (dest, "changed", G_CALLBACK (refilter),
                    selector);
 
   g_signal_connect (dest, "focus-in-event", G_CALLBACK (on_entry_dest_select),
                    selector);
+
+  g_signal_connect_swapped (dest, "focus-out-event", G_CALLBACK (refilter),
+                   selector);
+
+
+  g_signal_connect_swapped (selector->filtered_source, "row-deleted",
+                   G_CALLBACK (on_row_deleted), selector);
+
+  g_signal_connect_swapped (selector->filtered_source, "row-inserted",
+                   G_CALLBACK (on_row_inserted), selector);
 }
 
 
@@ -728,8 +787,6 @@ psppire_selector_set_subjects (PsppireSelector *selector,
        selector->filter = is_item_in_dest;
     }
 
-  g_signal_connect (selector, "clicked", G_CALLBACK (on_click), NULL);
-
   if ( GTK_IS_TREE_VIEW (source))
     set_tree_view_source (selector, GTK_TREE_VIEW (source) );
   else
@@ -756,6 +813,14 @@ psppire_selector_set_subjects (PsppireSelector *selector,
 
 
 
+void
+psppire_selector_set_allow        (PsppireSelector *selector , AllowSelectionFunc *allow)
+{
+  selector->allow_selection = allow;
+}
+
+
+
 GType
 psppire_selector_orientation_get_type (void)
 {