1 files changed, 150 insertions, 0 deletions
diff --git a/plug-ins/help/gimphelpprogress.c b/plug-ins/help/gimphelpprogress.c
new file mode 100644
index 0000000..dd4b224
--- /dev/null
+++ b/plug-ins/help/gimphelpprogress.c
@@ -0,0 +1,150 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * The GIMP Help plug-in
+ * Copyright (C) 1999-2008 Sven Neumann <sven@gimp.org>
+ *                         Michael Natterer <mitch@gimp.org>
+ *                         Henrik Brix Andersen <brix@gimp.org>
+ *
+ * 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
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*  This code is written so that it can also be compiled standalone.
+ *  It shouldn't depend on libgimp.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gio/gio.h>
+
+#include "gimphelptypes.h"
+#include "gimphelpprogress.h"
+#include "gimphelpprogress-private.h"
+
+
+struct _GimpHelpProgress
+{
+  GimpHelpProgressVTable  vtable;
+  gpointer                user_data;
+
+  GCancellable           *cancellable;
+};
+
+
+GimpHelpProgress *
+gimp_help_progress_new (const GimpHelpProgressVTable *vtable,
+                        gpointer                      user_data)
+{
+  GimpHelpProgress *progress;
+
+  g_return_val_if_fail (vtable != NULL, NULL);
+
+  progress = g_slice_new0 (GimpHelpProgress);
+
+  progress->vtable.start     = vtable->start;
+  progress->vtable.end       = vtable->end;
+  progress->vtable.set_value = vtable->set_value;
+
+  progress->user_data        = user_data;
+
+  return progress;
+}
+
+void
+gimp_help_progress_free (GimpHelpProgress *progress)
+{
+  g_return_if_fail (progress != NULL);
+
+  if (progress->cancellable)
+    {
+      g_object_unref (progress->cancellable);
+      progress->cancellable = NULL;
+    }
+
+  g_slice_free (GimpHelpProgress, progress);
+}
+
+void
+gimp_help_progress_cancel (GimpHelpProgress *progress)
+{
+  g_return_if_fail (progress != NULL);
+
+  if (progress->cancellable)
+    g_cancellable_cancel (progress->cancellable);
+}
+
+
+void
+_gimp_help_progress_start (GimpHelpProgress *progress,
+                           GCancellable     *cancellable,
+                           const gchar      *format,
+                           ...)
+{
+  gchar   *message;
+  va_list  args;
+
+  g_return_if_fail (progress != NULL);
+
+  if (cancellable)
+    g_object_ref (cancellable);
+
+  if (progress->cancellable)
+    g_object_unref (progress->cancellable);
+
+  progress->cancellable = cancellable;
+
+  va_start (args, format);
+  message = g_strdup_vprintf (format, args);
+  va_end (args);
+
+  if (progress->vtable.start)
+    progress->vtable.start (message, cancellable != NULL, progress->user_data);
+
+  g_free (message);
+}
+
+void
+_gimp_help_progress_update (GimpHelpProgress *progress,
+                            gdouble           percentage)
+{
+  g_return_if_fail (progress != NULL);
+
+  if (progress->vtable.set_value)
+    progress->vtable.set_value (percentage, progress->user_data);
+}
+
+void
+_gimp_help_progress_pulse (GimpHelpProgress *progress)
+{
+  g_return_if_fail (progress != NULL);
+
+  _gimp_help_progress_update (progress, -1.0);
+}
+
+void
+_gimp_help_progress_finish (GimpHelpProgress *progress)
+{
+  g_return_if_fail (progress != NULL);
+
+  if (progress->vtable.end)
+    progress->vtable.end (progress->user_data);
+
+  if (progress->cancellable)
+    {
+      g_object_unref (progress->cancellable);
+      progress->cancellable = NULL;
+    }
+}