--- /dev/null
+/*
+ * gtkcols.h - header file for a columns-based widget container
+ * capable of supporting the PuTTY portable dialog box layout
+ * mechanism.
+ */
+
+#ifndef COLUMNS_H
+#define COLUMNS_H
+
+#include <gdk/gdk.h>
+#include <gtk/gtkcontainer.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#define TYPE_COLUMNS (columns_get_type())
+#define COLUMNS(obj) (GTK_CHECK_CAST((obj), TYPE_COLUMNS, Columns))
+#define COLUMNS_CLASS(klass) \
+ (GTK_CHECK_CLASS_CAST((klass), TYPE_COLUMNS, ColumnsClass))
+#define IS_COLUMNS(obj) (GTK_CHECK_TYPE((obj), TYPE_COLUMNS))
+#define IS_COLUMNS_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), TYPE_COLUMNS))
+
+typedef struct Columns_tag Columns;
+typedef struct ColumnsClass_tag ColumnsClass;
+typedef struct ColumnsChild_tag ColumnsChild;
+
+struct Columns_tag {
+ GtkContainer container;
+ /* private after here */
+ GList *children; /* this holds ColumnsChild structures */
+ GList *taborder; /* this just holds GtkWidgets */
+ gint spacing;
+};
+
+struct ColumnsClass_tag {
+ GtkContainerClass parent_class;
+};
+
+struct ColumnsChild_tag {
+ /* If `widget' is non-NULL, this entry represents an actual widget. */
+ GtkWidget *widget;
+ gint colstart, colspan;
+ gboolean force_left; /* for recalcitrant GtkLabels */
+ /* Otherwise, this entry represents a change in the column setup. */
+ gint ncols;
+ gint *percentages;
+};
+
+GtkType columns_get_type(void);
+GtkWidget *columns_new(gint spacing);
+void columns_set_cols(Columns *cols, gint ncols, const gint *percentages);
+void columns_add(Columns *cols, GtkWidget *child,
+ gint colstart, gint colspan);
+void columns_taborder_last(Columns *cols, GtkWidget *child);
+void columns_force_left_align(Columns *cols, GtkWidget *child);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* COLUMNS_H */