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462
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1 /* Define Gtk-specific scrollbar instance.
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not in FSF. */
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22
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23 #ifndef _XEMACS_SCROLLBAR_GTK_H_
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24 #define _XEMACS_SCROLLBAR_GTK_H_
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25
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26 #if defined (HAVE_GTK) && defined (HAVE_SCROLLBARS)
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27
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28 #include "scrollbar.h"
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29
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30 typedef struct _scrollbar_values
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31 {
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32 int line_increment;
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33 int page_increment;
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34
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35 int minimum;
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36 int maximum;
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37
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38 int slider_size;
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39 int slider_position;
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40
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41 int scrollbar_width, scrollbar_height;
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42 int scrollbar_x, scrollbar_y;
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43 } scrollbar_values;
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44
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45 struct gtk_scrollbar_data
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46 {
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47 /* Unique scrollbar identifier and name. */
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48 unsigned int id;
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49
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50 /* Is set if we have already set the backing_store attribute correctly */
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51 char backing_store_initialized;
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52
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53 /* Positioning and sizing information for scrollbar and slider. */
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54 scrollbar_values pos_data;
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55
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56 /* Pointer to the scrollbar widget this structure describes. */
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57 GtkWidget *widget;
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58
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59 gfloat last_value;
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60
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61 /* Recorded starting position for Motif-like scrollbar drags. */
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62 int vdrag_orig_value;
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665
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63 Charbpos vdrag_orig_window_start;
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462
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64 };
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65
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66 #define SCROLLBAR_GTK_DATA(i) ((struct gtk_scrollbar_data *) ((i)->scrollbar_data))
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67
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68 #define SCROLLBAR_GTK_ID(i) (SCROLLBAR_GTK_DATA (i)->id)
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69 #define SCROLLBAR_GTK_BACKING_STORE_INITIALIZED(i) \
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70 (SCROLLBAR_GTK_DATA (i)->backing_store_initialized)
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71 #define SCROLLBAR_GTK_POS_DATA(i) (SCROLLBAR_GTK_DATA (i)->pos_data)
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72 #define SCROLLBAR_GTK_WIDGET(i) (SCROLLBAR_GTK_DATA (i)->widget)
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73 #define SCROLLBAR_GTK_LAST_VALUE(i) SCROLLBAR_GTK_DATA (i)->last_value
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74
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75 #define SCROLLBAR_GTK_VDRAG_ORIG_VALUE(i) \
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76 (SCROLLBAR_GTK_DATA (i)->vdrag_orig_value)
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77 #define SCROLLBAR_GTK_VDRAG_ORIG_WINDOW_START(i) \
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78 (SCROLLBAR_GTK_DATA (i)->vdrag_orig_window_start)
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79
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80 void gtk_update_frame_scrollbars (struct frame *f);
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81 void gtk_set_scrollbar_pointer (struct frame *f, Lisp_Object cursor);
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82
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83 #endif /* HAVE_GDK and HAVE_SCROLLBARS */
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84 #endif /* _XEMACS_SCROLLBAR_GTK_H_ */
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