Initial revision

[chise/xemacs-chise.git.1] / src / scrollbar-gtk.h

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+/* Define Gtk-specific scrollbar instance.
+   Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
+
+This file is part of XEmacs.
+
+XEmacs 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 2, or (at your option) any
+later version.
+
+XEmacs 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 XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: Not in FSF. */
+
+#ifndef _XEMACS_SCROLLBAR_GTK_H_
+#define _XEMACS_SCROLLBAR_GTK_H_
+
+#if defined (HAVE_GTK) && defined (HAVE_SCROLLBARS)
+
+#include "scrollbar.h"
+
+typedef struct _scrollbar_values
+{
+  int line_increment;
+  int page_increment;
+
+  int minimum;
+  int maximum;
+
+  int slider_size;
+  int slider_position;
+
+  int scrollbar_width, scrollbar_height;
+  int scrollbar_x, scrollbar_y;
+} scrollbar_values;
+
+struct gtk_scrollbar_data
+{
+  /* Unique scrollbar identifier and name. */
+  unsigned int id;
+
+  /* Is set if we have already set the backing_store attribute correctly */
+  char backing_store_initialized;
+
+  /* Positioning and sizing information for scrollbar and slider. */
+  scrollbar_values pos_data;
+
+  /* Pointer to the scrollbar widget this structure describes. */
+  GtkWidget *widget;
+
+  gfloat last_value;
+
+  /* Recorded starting position for Motif-like scrollbar drags. */
+  int vdrag_orig_value;
+  Bufpos vdrag_orig_window_start;
+};
+
+#define SCROLLBAR_GTK_DATA(i) ((struct gtk_scrollbar_data *) ((i)->scrollbar_data))
+
+#define SCROLLBAR_GTK_ID(i) (SCROLLBAR_GTK_DATA (i)->id)
+#define SCROLLBAR_GTK_BACKING_STORE_INITIALIZED(i) \
+  (SCROLLBAR_GTK_DATA (i)->backing_store_initialized)
+#define SCROLLBAR_GTK_POS_DATA(i) (SCROLLBAR_GTK_DATA (i)->pos_data)
+#define SCROLLBAR_GTK_WIDGET(i) (SCROLLBAR_GTK_DATA (i)->widget)
+#define SCROLLBAR_GTK_LAST_VALUE(i) SCROLLBAR_GTK_DATA (i)->last_value
+
+#define SCROLLBAR_GTK_VDRAG_ORIG_VALUE(i) \
+  (SCROLLBAR_GTK_DATA (i)->vdrag_orig_value)
+#define SCROLLBAR_GTK_VDRAG_ORIG_WINDOW_START(i) \
+  (SCROLLBAR_GTK_DATA (i)->vdrag_orig_window_start)
+
+void gtk_update_frame_scrollbars (struct frame *f);
+void gtk_set_scrollbar_pointer (struct frame *f, Lisp_Object cursor);
+
+#endif /* HAVE_GDK and HAVE_SCROLLBARS */
+#endif /* _XEMACS_SCROLLBAR_GTK_H_ */