psppire-output-window: Factor out output view as psppire-output-view.
[pspp] / src / ui / gui / psppire-dialog.c
index de2490a016e5f3862d9ed32170404c8de5381e21..d89b3b4ec288f8d9f00fd812a15f72f9d4b49202 100644 (file)
@@ -1,5 +1,5 @@
 /* PSPPIRE - a graphical user interface for PSPP.
-   Copyright (C) 2007, 2010, 2011  Free Software Foundation
+   Copyright (C) 2007, 2010, 2011, 2012  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
 #include "psppire-dialog.h"
 #include "psppire-buttonbox.h"
 #include "psppire-selector.h"
-#include "psppire-conf.h"
 #include <string.h>
-#include "helper.h"
+#include "builder-wrapper.h"
 #include "help-menu.h"
 
+#include "psppire-window-base.h"
+
 static void psppire_dialog_class_init          (PsppireDialogClass *);
 static void psppire_dialog_init                (PsppireDialog      *);
 
 
 enum  {DIALOG_REFRESH,
+       RESPONSE,
        VALIDITY_CHANGED,
        DIALOG_HELP,
        n_SIGNALS};
@@ -68,7 +70,7 @@ psppire_dialog_get_type (void)
        NULL
       };
 
-      dialog_type = g_type_register_static (GTK_TYPE_WINDOW,
+      dialog_type = g_type_register_static (PSPPIRE_TYPE_WINDOW_BASE,
                                            "PsppireDialog", &dialog_info, 0);
 
       g_type_add_interface_static (dialog_type,
@@ -84,22 +86,6 @@ psppire_dialog_get_type (void)
 static GObjectClass     *parent_class = NULL;
 
 
-static void
-psppire_dialog_finalize (GObject *object)
-{
-  PsppireDialog *dialog ;
-
-  g_return_if_fail (object != NULL);
-  g_return_if_fail (PSPPIRE_IS_DIALOG (object));
-
-  dialog = PSPPIRE_DIALOG (object);
-
-  if (G_OBJECT_CLASS (parent_class)->finalize)
-    G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-
-
 /* Properties */
 enum
 {
@@ -248,6 +234,18 @@ psppire_dialog_class_init (PsppireDialogClass *class)
                  0);
 
 
+  signals [RESPONSE] =
+    g_signal_new ("response",
+                 G_TYPE_FROM_CLASS (class),
+                 G_SIGNAL_RUN_FIRST,
+                 0,
+                 NULL, NULL,
+                 g_cclosure_marshal_VOID__INT,
+                 G_TYPE_NONE,
+                 1,
+                 G_TYPE_INT);
+
+
   signals [VALIDITY_CHANGED] =
     g_signal_new ("validity-changed",
                  G_TYPE_FROM_CLASS (class),
@@ -272,7 +270,7 @@ psppire_dialog_class_init (PsppireDialogClass *class)
                  G_TYPE_STRING);
 
 
-  object_class->finalize = psppire_dialog_finalize;
+  parent_class = g_type_class_peek_parent (class);
 }
 
 
@@ -301,37 +299,6 @@ delete_event_callback (GtkWidget *w, GdkEvent *e, gpointer data)
 }
 
 
-static gboolean
-configure_event_callback (GtkDialog *dialog,
-                         GdkEvent *event, gpointer data)
-{
-  const gchar *base;
-
-  PsppireConf *conf = psppire_conf_new ();
-
-  if ( ! gtk_widget_get_mapped (GTK_WIDGET (dialog)))
-    return FALSE;
-
-  base = gtk_buildable_get_name (GTK_BUILDABLE (dialog));
-
-  psppire_conf_save_window_geometry (conf, base, GTK_WINDOW (dialog));
-
-  return FALSE;
-}
-
-
-static void
-on_realize (GtkWindow *dialog, gpointer data)
-{
-  PsppireConf *conf = psppire_conf_new ();
-
-  const gchar *base = gtk_buildable_get_name (GTK_BUILDABLE (dialog));
-
-  psppire_conf_set_window_geometry (conf, base, dialog);
-}
-
-
-
 static void
 psppire_dialog_init (PsppireDialog *dialog)
 {
@@ -339,6 +306,8 @@ psppire_dialog_init (PsppireDialog *dialog)
   dialog->box = NULL;
   dialog->contents_are_valid = NULL;
   dialog->validity_data = NULL;
+  dialog->contents_are_acceptable = NULL;
+  dialog->acceptable_data = NULL;
   dialog->slidable = FALSE;
 
   g_value_init (&value, orientation_spec->value_type);
@@ -353,15 +322,6 @@ psppire_dialog_init (PsppireDialog *dialog)
                    G_CALLBACK (delete_event_callback),
                    dialog);
 
-  g_signal_connect (dialog, "configure-event",
-                   G_CALLBACK (configure_event_callback),
-                   dialog);
-
-  g_signal_connect (dialog, "realize",
-                   G_CALLBACK (on_realize),
-                   dialog);
-
-
   gtk_window_set_type_hint (GTK_WINDOW (dialog),
        GDK_WINDOW_TYPE_HINT_DIALOG);
 
@@ -393,6 +353,13 @@ psppire_dialog_notify_change (PsppireDialog *dialog)
 }
 
 
+static void
+remove_notify_handlers (PsppireDialog *dialog, GObject *sel)
+{
+  g_signal_handlers_disconnect_by_data (sel, dialog);
+}
+
+
 /* Descend the widget tree, connecting appropriate signals to the
    psppire_dialog_notify_change callback */
 static void
@@ -467,19 +434,22 @@ connect_notify_signal (GtkWidget *w, gpointer data)
 
       if ( model)
        {
-      g_signal_connect_swapped (model, "row-changed",
-                               G_CALLBACK (psppire_dialog_notify_change),
-                               dialog);
+         g_signal_connect_swapped (model, "row-changed",
+                                   G_CALLBACK (psppire_dialog_notify_change),
+                                   dialog);
 
-      g_signal_connect_swapped (model, "row-deleted",
-                               G_CALLBACK (psppire_dialog_notify_change),
-                               dialog);
+         g_signal_connect_swapped (model, "row-deleted",
+                                   G_CALLBACK (psppire_dialog_notify_change),
+                                   dialog);
 
-      g_signal_connect_swapped (model, "row-inserted",
-                               G_CALLBACK (psppire_dialog_notify_change),
-                               dialog);
-       }
+         g_signal_connect_swapped (model, "row-inserted",
+                                   G_CALLBACK (psppire_dialog_notify_change),
+                                   dialog);
 
+         g_signal_connect (dialog, "destroy", G_CALLBACK (remove_notify_handlers),
+                           model);
+       }
+      
       g_signal_connect_swapped (selection, "changed",
                                G_CALLBACK (psppire_dialog_notify_change),
                                dialog);
@@ -504,6 +474,12 @@ connect_notify_signal (GtkWidget *w, gpointer data)
 gint
 psppire_dialog_run (PsppireDialog *dialog)
 {
+  gchar *title = NULL;
+  g_object_get (dialog, "title", &title, NULL);
+
+  if (title == NULL)
+    g_warning ("PsppireDialog %s has no title", gtk_widget_get_name (GTK_WIDGET (dialog)));
+  
   if ( dialog->contents_are_valid != NULL )
     gtk_container_foreach (GTK_CONTAINER (dialog->box),
                           connect_notify_signal,
@@ -524,6 +500,8 @@ psppire_dialog_run (PsppireDialog *dialog)
 
   g_main_loop_unref (dialog->loop);
 
+  g_signal_emit (dialog, signals [RESPONSE], 0, dialog->response);
+
   return dialog->response;
 }
 
@@ -569,6 +547,10 @@ psppire_orientation_get_type (void)
 }
 
 
+/* Sets a predicate function that is checked after each change that the user
+   makes to the dialog's state.  If the predicate function returns false, then
+   "OK" and other buttons that accept the dialog's settings will be
+   disabled. */
 void
 psppire_dialog_set_valid_predicate (PsppireDialog *dialog,
                                    ContentsAreValid contents_are_valid,
@@ -578,6 +560,30 @@ psppire_dialog_set_valid_predicate (PsppireDialog *dialog,
   dialog->validity_data = data;
 }
 
+/* Sets a predicate function that is called after "OK" or another button that
+   accepts the dialog's settings is pushed.  If the predicate function returns
+   false, then the button push is ignored.  (If the predicate function returns
+   false, then it should take some action to notify the user why the contents
+   are unacceptable, e.g. pop up a dialog box.)
+
+   An accept predicate is preferred over a validity predicate when the reason
+   why the dialog settings are unacceptable may not be obvious to the user, so
+   that the user needs a helpful message to explain. */
+void
+psppire_dialog_set_accept_predicate (PsppireDialog *dialog,
+                                     ContentsAreValid contents_are_acceptable,
+                                     gpointer data)
+{
+  dialog->contents_are_acceptable = contents_are_acceptable;
+  dialog->acceptable_data = data;
+}
+
+gboolean
+psppire_dialog_is_acceptable (const PsppireDialog *dialog)
+{
+  return (dialog->contents_are_acceptable == NULL
+          || dialog->contents_are_acceptable (dialog->acceptable_data));
+}