recode dialog: set "old and new values" sentivitity as appropriate.

The "Old and New Values" button should only be clickable when a row
is selected in the corresponding treeview.  This was not the
case.

Fixes bug: #58557

diff --git a/src/ui/gui/psppire-dialog-action-recode.c b/src/ui/gui/psppire-dialog-action-recode.c
index 38bab662f9b45f23236b4fd6b9639cbaee1d5cb7..5bbaf43df7bcc9c7adef3fa4f0af8fe00473ab7c 100644 (file)
--- a/src/ui/gui/psppire-dialog-action-recode.c
+++ b/src/ui/gui/psppire-dialog-action-recode.c
@@ -1,5 +1,6 @@
 /* PSPPIRE - a graphical user interface for PSPP.
-   Copyright (C) 2007, 2009, 2010, 2011, 2012, 2014, 2016  Free Software Foundation
+   Copyright (C) 2007, 2009, 2010, 2011, 2012, 2014, 2016,
+   2020  Free Software Foundation
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -349,6 +350,16 @@ set_value (gint col, GValue  *val, gpointer data)
   return TRUE;
 }
 
+static void
+set_old_and_new_button_sensitivity (GtkTreeSelection *sel, PsppireDialogActionRecode *rd)
+{
+  GtkTreeModel *model = NULL;
+
+  GList *rows = gtk_tree_selection_get_selected_rows (sel, &model);
+
+  gtk_widget_set_sensitive (rd->old_and_new, rows != NULL);
+}
+
 static void
 run_old_and_new_dialog (PsppireDialogActionRecode *rd)
 {
@@ -435,6 +446,7 @@ psppire_dialog_action_recode_refresh (PsppireDialogAction *rd_)
   gtk_widget_set_sensitive (rd->change_button, FALSE);
   gtk_widget_set_sensitive (rd->new_name_entry, FALSE);
   gtk_widget_set_sensitive (rd->new_label_entry, FALSE);
+  gtk_widget_set_sensitive (rd->old_and_new, FALSE);
 
   gtk_list_store_clear (GTK_LIST_STORE (rd->value_map));
 }
@@ -453,8 +465,7 @@ psppire_dialog_action_recode_pre_activate (PsppireDialogActionRecode *act,
 
 
   GtkWidget *selector = get_widget_assert (xml, "psppire-selector1");
-  GtkWidget *oldandnew = get_widget_assert (xml, "button1");
-
+  act->old_and_new  = get_widget_assert (xml, "button1");
 
   act->output_variable_box = get_widget_assert (xml,"frame4");
 
@@ -536,10 +547,15 @@ psppire_dialog_action_recode_pre_activate (PsppireDialogActionRecode *act,
     }
 
 
-    g_signal_connect_swapped (oldandnew, "clicked",
+    g_signal_connect_swapped (act->old_and_new, "clicked",
                              G_CALLBACK (run_old_and_new_dialog), act);
 
 
+    GtkTreeSelection *sel =
+      gtk_tree_view_get_selection (GTK_TREE_VIEW (act->variable_treeview));
+    g_signal_connect (sel, "changed",
+                      G_CALLBACK (set_old_and_new_button_sensitivity), act);
+
     g_signal_connect (act->toggle[BUTTON_NEW_VALUE], "toggled",
                      G_CALLBACK (toggle_sensitivity), act->new_value_entry);
 

diff --git a/src/ui/gui/psppire-dialog-action-recode.h b/src/ui/gui/psppire-dialog-action-recode.h
index 1eed74a1e98892109798a143ce6721eead955979..a4116da265f3d9ede8bfdc09d525d7e6161a729c 100644 (file)
--- a/src/ui/gui/psppire-dialog-action-recode.h
+++ b/src/ui/gui/psppire-dialog-action-recode.h
@@ -88,6 +88,7 @@ struct _PsppireDialogActionRecode
   GtkWidget *new_name_entry;
   GtkWidget *new_label_entry;
   GtkWidget *change_button;
+  GtkWidget *old_and_new;
 
   GtkWidget *output_variable_box;