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-rw-r--r--libgimpwidgets/gimppreview.h149
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diff --git a/libgimpwidgets/gimppreview.h b/libgimpwidgets/gimppreview.h
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+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimppreview.h
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#if !defined (__GIMP_WIDGETS_H_INSIDE__) && !defined (GIMP_WIDGETS_COMPILATION)
+#error "Only <libgimpwidgets/gimpwidgets.h> can be included directly."
+#endif
+
+#ifndef __GIMP_PREVIEW_H__
+#define __GIMP_PREVIEW_H__
+
+G_BEGIN_DECLS
+
+
+/* For information look into the C source or the html documentation */
+
+
+#define GIMP_TYPE_PREVIEW (gimp_preview_get_type ())
+#define GIMP_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_PREVIEW, GimpPreview))
+#define GIMP_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_PREVIEW, GimpPreviewClass))
+#define GIMP_IS_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_PREVIEW))
+#define GIMP_IS_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_PREVIEW))
+#define GIMP_PREVIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PREVIEW, GimpPreviewClass))
+
+
+typedef struct _GimpPreviewClass GimpPreviewClass;
+
+struct _GimpPreview
+{
+ GtkBox parent_instance;
+
+ gboolean update_preview;
+
+ /*< protected >*/
+ GtkWidget *area;
+ GtkWidget *table;
+ GtkWidget *frame;
+ GtkWidget *toggle;
+ GdkCursor *cursor_busy;
+ GdkCursor *default_cursor;
+
+ /*< private >*/
+ gint xoff, yoff;
+ gint xmin, xmax, ymin, ymax;
+ gint width, height;
+
+ guint timeout_id;
+};
+
+struct _GimpPreviewClass
+{
+ GtkBoxClass parent_class;
+
+ /* virtual methods */
+ void (* draw) (GimpPreview *preview);
+ void (* draw_thumb) (GimpPreview *preview,
+ GimpPreviewArea *area,
+ gint width,
+ gint height);
+ void (* draw_buffer) (GimpPreview *preview,
+ const guchar *buffer,
+ gint rowstride);
+ void (* set_cursor) (GimpPreview *preview);
+
+ /* signal */
+ void (* invalidated) (GimpPreview *preview);
+
+ /* virtual methods */
+ void (* transform) (GimpPreview *preview,
+ gint src_x,
+ gint src_y,
+ gint *dest_x,
+ gint *dest_y);
+ void (* untransform) (GimpPreview *preview,
+ gint src_x,
+ gint src_y,
+ gint *dest_x,
+ gint *dest_y);
+
+ /* Padding for future expansion */
+ void (* _gimp_reserved3) (void);
+ void (* _gimp_reserved4) (void);
+};
+
+
+GType gimp_preview_get_type (void) G_GNUC_CONST;
+
+void gimp_preview_set_update (GimpPreview *preview,
+ gboolean update);
+gboolean gimp_preview_get_update (GimpPreview *preview);
+
+void gimp_preview_set_bounds (GimpPreview *preview,
+ gint xmin,
+ gint ymin,
+ gint xmax,
+ gint ymax);
+
+void gimp_preview_get_position (GimpPreview *preview,
+ gint *x,
+ gint *y);
+void gimp_preview_get_size (GimpPreview *preview,
+ gint *width,
+ gint *height);
+
+void gimp_preview_transform (GimpPreview *preview,
+ gint src_x,
+ gint src_y,
+ gint *dest_x,
+ gint *dest_y);
+void gimp_preview_untransform (GimpPreview *preview,
+ gint src_x,
+ gint src_y,
+ gint *dest_x,
+ gint *dest_y);
+
+GtkWidget * gimp_preview_get_area (GimpPreview *preview);
+
+void gimp_preview_draw (GimpPreview *preview);
+void gimp_preview_draw_buffer (GimpPreview *preview,
+ const guchar *buffer,
+ gint rowstride);
+
+void gimp_preview_invalidate (GimpPreview *preview);
+
+void gimp_preview_set_default_cursor (GimpPreview *preview,
+ GdkCursor *cursor);
+
+GtkWidget * gimp_preview_get_controls (GimpPreview *preview);
+
+
+G_END_DECLS
+
+#endif /* __GIMP_PREVIEW_H__ */