src/xscrollbar.h

   1 /* Bitmaps and things for scrollbars.
   2    Copyright (C) 1989 Free Software Foundation.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 1, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20
  21 static void install_vertical_scrollbar ();
  22 static void install_horizontal_scrollbar ();
  23 static void x_set_horizontal_scrollbar ();
  24 static void x_set_vertical_scrollbar ();
  25
  26 /* Prefix-characters for scroll bar commands in Vglobal_mouse_map.
  27    Choice of prefix depends on which region of the scroll bar.  */
  28
  29 enum scroll_bar_prefix
  30   { VSCROLL_BAR_PREFIX = 050, VSCROLL_SLIDER_PREFIX /* unused */,
  31     VSCROLL_THUMBUP_PREFIX, VSCROLL_THUMBDOWN_PREFIX,
  32     HSCROLL_BAR_PREFIX, HSCROLL_SLIDER_PREFIX /* unused */,
  33     HSCROLL_THUMBLEFT_PREFIX, HSCROLL_THUMBRIGHT_PREFIX };
  34
  35 #define CROSS_WIDTH 16
  36 #define CROSS_HEIGHT 16
  37
  38 #define CROSS_MASK_WIDTH 16
  39 #define CROSS_MASK_HEIGHT 16
  40
  41 /* Vertical and Horizontal scroll bar widths. */
  42 #define VSCROLL_WIDTH 18
  43 #define HSCROLL_HEIGHT 18
  44
  45 #ifdef HAVE_X11
  46
  47 /* Arrow cursors for scroll bars.  */
  48
  49 Cursor up_arrow_cursor, down_arrow_cursor, v_double_arrow_cursor;
  50 Cursor left_arrow_cursor, right_arrow_cursor, h_double_arrow_cursor;
  51
  52 static char cross_bits[] =
  53  {
  54    0x00, 0x00, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01,
  55    0x80, 0x01, 0xfe, 0x7f, 0xfe, 0x7f, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01,
  56    0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x00, 0x00
  57  };
  58
  59 static char gray_bits[] =
  60  {
  61    0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa,
  62    0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa,
  63    0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa,
  64    0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa
  65  };
  66
  67 static char up_arrow_bits[] =
  68   {
  69     0x00, 0x00, 0x80, 0x01, 0xc0, 0x03, 0xe0, 0x07, 0xf0, 0x0f, 0xf8, 0x1f,
  70     0xfc, 0x3f, 0xfe, 0x7f, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01,
  71     0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0xff, 0xff
  72   };
  73
  74 static char down_arrow_bits[] =
  75   {
  76     0xff, 0xff, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01, 0x80, 0x01,
  77     0x80, 0x01, 0x80, 0x01, 0xfe, 0x7f, 0xfc, 0x3f, 0xf8, 0x1f, 0xf0, 0x0f,
  78     0xe0, 0x07, 0xc0, 0x03, 0x80, 0x01, 0x00, 0x00
  79   };
  80
  81 static char left_arrow_bits[] =
  82   {
  83     0x00, 0x80, 0x80, 0x80, 0xc0, 0x80, 0xe0, 0x80, 0xf0, 0x80, 0xf8, 0x80,
  84     0xfc, 0x80, 0xfe, 0xff, 0xfe, 0xff, 0xfc, 0x80, 0xf8, 0x80, 0xf0, 0x80,
  85     0xe0, 0x80, 0xc0, 0x80, 0x80, 0x80, 0x00, 0x80
  86   };
  87
  88 static char right_arrow_bits[] =
  89   {
  90     0x01, 0x00, 0x01, 0x01, 0x01, 0x03, 0x01, 0x07, 0x01, 0x0f, 0x01, 0x1f,
  91     0x01, 0x3f, 0xff, 0x7f, 0xff, 0x7f, 0x01, 0x3f, 0x01, 0x1f, 0x01, 0x0f,
  92     0x01, 0x07, 0x01, 0x03, 0x01, 0x01, 0x01, 0x00
  93   };
  94
  95 static char cross_mask_bits[] =
  96  {
  97    0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03,
  98    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0x03, 0xc0, 0x03,
  99    0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03, 0xc0, 0x03
 100  };
 101 #else /* not HAVE_X11 */
 102 static short cross_bits[] =
 103   {
 104     0x0000, 0x0180, 0x0180, 0x0180,
 105     0x0180, 0x0180, 0x0180, 0x7ffe,
 106     0x7ffe, 0x0180, 0x0180, 0x0180,
 107     0x0180, 0x0180, 0x0180, 0x0000,
 108   };
 109
 110 static short gray_bits[] = {
 111     0xaaaa, 0x5555, 0xaaaa, 0x5555,
 112     0xaaaa, 0x5555, 0xaaaa, 0x5555,
 113     0xaaaa, 0x5555, 0xaaaa, 0x5555,
 114     0xaaaa, 0x5555, 0xaaaa, 0x5555};
 115
 116 static short cross_mask_bits[] =
 117   {
 118     0x03c0, 0x03c0, 0x03c0, 0x03c0,
 119     0x03c0, 0x03c0, 0xffff, 0xffff,
 120     0xffff, 0xffff, 0x03c0, 0x03c0,
 121     0x03c0, 0x03c0, 0x03c0, 0x03c0,
 122   };
 123 #endif /* X10 */