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-rw-r--r--app/dialogs/convert-precision-dialog.h50
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diff --git a/app/dialogs/convert-precision-dialog.h b/app/dialogs/convert-precision-dialog.h
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+++ b/app/dialogs/convert-precision-dialog.h
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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/>.
+ */
+
+#ifndef __CONVERT_PRECISION_DIALOG_H__
+#define __CONVERT_PRECISION_DIALOG_H__
+
+
+/* Don't offer dithering when converting down to more than this
+ * number of bits per component. Note that gegl:dither would
+ * do 16 bit, so this is a limitation of the GUI to values that make
+ * sense. See bug #735895.
+ */
+#define CONVERT_PRECISION_DIALOG_MAX_DITHER_BITS 8
+
+
+typedef void (* GimpConvertPrecisionCallback) (GtkWidget *dialog,
+ GimpImage *image,
+ GimpPrecision precision,
+ GeglDitherMethod layer_dither_method,
+ GeglDitherMethod text_layer_dither_method,
+ GeglDitherMethod channel_dither_method,
+ gpointer user_data);
+
+
+GtkWidget * convert_precision_dialog_new (GimpImage *image,
+ GimpContext *context,
+ GtkWidget *parent,
+ GimpComponentType component_type,
+ GeglDitherMethod layer_dither_method,
+ GeglDitherMethod text_layer_dither_method,
+ GeglDitherMethod channel_dither_method,
+ GimpConvertPrecisionCallback callback,
+ gpointer user_data);
+
+
+#endif /* __CONVERT_PRECISION_DIALOG_H__ */