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209
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1 ;;; device.el --- miscellaneous device functions not written in C
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2
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3 ;; Copyright (C) 1994-5, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995, 1996 Ben Wing
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5
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6 ;; Maintainer: XEmacs Development Team
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7 ;; Keywords: internal, dumped
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the
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23 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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24 ;; Boston, MA 02111-1307, USA.
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25
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26 ;;; Synched up with: Not in FSF.
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27
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28 ;;; Commentary:
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29
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30 ;; This file is dumped with XEmacs.
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31
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32 ;;; Code:
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33
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34 (defun device-list ()
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35 "Return a list of all devices."
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36 (apply 'nconc (mapcar 'console-device-list (console-list))))
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37
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38 (defun device-type (&optional device)
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39 "Return the type of the specified device (e.g. `x' or `tty').
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40 This is equivalent to the type of the device's console.
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41 Value is `tty' for a tty device (a character-only terminal),
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42 `x' for a device that is a screen on an X display,
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43 `ns' for a device that is a NeXTstep connection (not yet implemented),
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213
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44 `mswindows' for a device that is a Windows or Windows NT connection,
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209
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45 `pc' for a device that is a direct-write MS-DOS screen (not yet implemented),
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46 `stream' for a stream device (which acts like a stdio stream), and
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47 `dead' for a deleted device."
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48 (or device (setq device (selected-device)))
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49 (if (not (device-live-p device)) 'dead
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50 (console-type (device-console device))))
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51
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52 (defun make-tty-device (&optional tty terminal-type controlling-process)
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53 "Create a new device on TTY.
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54 TTY should be the name of a tty device file (e.g. \"/dev/ttyp3\" under
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55 SunOS et al.), as returned by the `tty' command. A value of nil means
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56 use the stdin and stdout as passed to XEmacs from the shell.
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57 If TERMINAL-TYPE is non-nil, it should be a string specifying the
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58 type of the terminal attached to the specified tty. If it is nil,
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59 the terminal type will be inferred from the TERM environment variable.
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60 If CONTROLLING-PROCESS is non-nil, it should be an integer
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61 specifying the process id of the process in control of the specified tty. If
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62 it is nil, it is assumes to be the value returned by emacs-pid."
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63 (make-device 'tty tty (list 'terminal-type terminal-type
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64 'controlling-process controlling-process)))
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65
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282
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66 (defun device-pixel-width (&optional device)
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67 "Return the width in pixels of DEVICE, or nil if unknown."
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284
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68 (let ((ds (device-system-metric device 'size-device)))
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282
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69 (and ds (car ds))))
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70
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71 (defun device-pixel-height (&optional device)
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72 "Return the height in pixels of DEVICE, or nil if unknown."
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284
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73 (let ((ds (device-system-metric device 'size-device)))
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282
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74 (and ds (cdr ds))))
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75
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76 (defun device-mm-width (&optional device)
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77 "Return the width in millimeters of DEVICE, or nil if unknown."
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284
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78 (let ((ds (device-system-metric device 'size-device-mm)))
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282
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79 (and ds (car ds))))
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80
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81 (defun device-mm-height (&optional device)
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82 "Return the height in millimeters of DEVICE, or nil if unknown."
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284
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83 (let ((ds (device-system-metric device 'size-device-mm)))
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282
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84 (and ds (cdr ds))))
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85
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86 (defun device-bitplanes (&optional device)
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87 "Return the number of bitplanes of DEVICE, or nil if unknown."
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284
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88 (device-system-metric device 'num-bit-planes))
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282
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89
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90 (defun device-color-cells (&optional device)
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91 "Return the number of color cells of DEVICE, or nil if unknown."
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284
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92 (device-system-metric device 'num-color-cells))
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282
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93
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209
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94 (defun make-x-device (&optional display)
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95 "Create a new device connected to DISPLAY."
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96 (make-device 'x display))
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97
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213
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98 (defun make-mswindows-device ()
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99 "Create a new mswindows device."
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100 (make-device 'mswindows nil))
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209
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101
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102 (defun device-on-window-system-p (&optional device)
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103 "Return non-nil if DEVICE is on a window system.
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104 This generally means that there is support for the mouse, the menubar,
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105 the toolbar, glyphs, etc."
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106 (or device (setq device (selected-device)))
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107 (console-on-window-system-p (device-console device)))
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108
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109 (defalias 'valid-device-type-p 'valid-console-type-p)
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110 (defalias 'device-type-list 'console-type-list)
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111 (defalias 'device-pixel-depth 'device-bitplanes)
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112
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113 ;;; device.el ends here
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