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1 ;;; sup-mouse.el --- supdup mouse support for lisp machines
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2
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3 ;; Copyright (C) Free Software Foundation 1985, 1986
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4
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5 ;; Author: Wolfgang Rupprecht
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6 ;; Maintainer: FSF
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7 ;; Created: 21 Nov 1986
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8 ;; Keywords: hardware
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9
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10 ;; (from code originally written by John Robinson@bbn for the bitgraph)
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11
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12 ;; This file is part of GNU Emacs.
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13
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14 ;; GNU Emacs is free software; you can redistribute it and/or modify
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15 ;; it under the terms of the GNU General Public License as published by
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16 ;; the Free Software Foundation; either version 2, or (at your option)
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17 ;; any later version.
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18
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19 ;; GNU Emacs is distributed in the hope that it will be useful,
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20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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22 ;; GNU General Public License for more details.
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23
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24 ;; You should have received a copy of the GNU General Public License
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25 ;; along with GNU Emacs; see the file COPYING. If not, write to
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26 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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27
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28 ;;; Code:
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29
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30 ;;; User customization option:
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31
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32 (defvar sup-mouse-fast-select-window nil
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33 "*Non-nil for mouse hits to select new window, then execute; else just select.")
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34
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35 (defconst mouse-left 0)
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36 (defconst mouse-center 1)
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37 (defconst mouse-right 2)
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38
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39 (defconst mouse-2left 4)
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40 (defconst mouse-2center 5)
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41 (defconst mouse-2right 6)
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42
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43 (defconst mouse-3left 8)
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44 (defconst mouse-3center 9)
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45 (defconst mouse-3right 10)
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46
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47 ;;; Defuns:
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48
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772
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49 (defun sup-window-edges (&optional win)
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50 (error "not implemented")
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51 (window-pixel-edges win))
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52
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53 (defun sup-mouse-report ()
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54 "This function is called directly by the mouse, it parses and
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55 executes the mouse commands.
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56
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57 L move point * |---- These apply for mouse click in a window.
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58 2L delete word |
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59 3L copy word | If sup-mouse-fast-select-window is nil,
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60 C move point and yank * | just selects that window.
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61 2C yank pop |
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62 R set mark * |
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63 2R delete region |
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64 3R copy region |
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65
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66 on modeline on \"scroll bar\" in minibuffer
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67 L scroll-up line to top execute-extended-command
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68 C proportional goto-char line to middle mouse-help
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69 R scroll-down line to bottom eval-expression"
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70
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71 (interactive)
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72 (let*
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73 ;; expect a string of <esc>:<buttons>;<x-pos>;<y-pos>c
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74 ((buttons (sup-get-tty-num ?\;))
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75 (x (sup-get-tty-num ?\;))
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76 (y (sup-get-tty-num ?c))
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77 (window (sup-pos-to-window x y))
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772
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78 (edges (sup-window-edges window))
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79 (old-window (selected-window))
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80 (in-minibuf-p (eq y (1- (frame-height))))
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81 (same-window-p (and (not in-minibuf-p) (eq window old-window)))
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82 (in-modeline-p (eq y (1- (nth 3 edges))))
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83 (in-scrollbar-p (>= x (1- (nth 2 edges)))))
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84 (setq x (- x (nth 0 edges)))
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85 (setq y (- y (nth 1 edges)))
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86
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87 ; (error "mouse-hit %d %d %d" buttons x y) ;;;; debug
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88
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89 (cond (in-modeline-p
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90 (select-window window)
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91 (cond ((= buttons mouse-left)
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92 (scroll-up))
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93 ((= buttons mouse-right)
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94 (scroll-down))
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95 ((= buttons mouse-center)
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96 (goto-char (/ (* x
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97 (- (point-max) (point-min)))
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98 (1- (window-width))))
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99 (beginning-of-line)
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100 (what-cursor-position)))
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101 (select-window old-window))
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102 (in-scrollbar-p
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103 (select-window window)
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104 (scroll-up
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105 (cond ((= buttons mouse-left)
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106 y)
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107 ((= buttons mouse-right)
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108 (+ y (- 2 (window-height))))
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109 ((= buttons mouse-center)
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110 (/ (+ 2 y y (- (window-height))) 2))
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111 (t
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112 0)))
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113 (select-window old-window))
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114 (same-window-p
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115 (cond ((= buttons mouse-left)
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116 (sup-move-point-to-x-y x y))
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117 ((= buttons mouse-2left)
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118 (sup-move-point-to-x-y x y)
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119 (kill-word 1))
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120 ((= buttons mouse-3left)
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121 (sup-move-point-to-x-y x y)
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122 (save-excursion
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123 (copy-region-as-kill
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124 (point) (progn (forward-word 1) (point))))
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125 (setq this-command 'yank)
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126 )
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127 ((= buttons mouse-right)
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128 (push-mark)
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129 (sup-move-point-to-x-y x y)
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130 (exchange-point-and-mark))
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131 ((= buttons mouse-2right)
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132 (push-mark)
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133 (sup-move-point-to-x-y x y)
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134 (kill-region (mark) (point)))
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135 ((= buttons mouse-3right)
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136 (push-mark)
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137 (sup-move-point-to-x-y x y)
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138 (copy-region-as-kill (mark) (point))
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139 (setq this-command 'yank))
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140 ((= buttons mouse-center)
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141 (sup-move-point-to-x-y x y)
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142 (setq this-command 'yank)
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143 (yank))
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144 ((= buttons mouse-2center)
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145 (yank-pop 1))
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146 )
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147 )
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148 (in-minibuf-p
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149 (cond ((= buttons mouse-right)
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150 (call-interactively 'eval-expression))
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151 ((= buttons mouse-left)
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152 (call-interactively 'execute-extended-command))
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153 ((= buttons mouse-center)
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154 (describe-function 'sup-mouse-report)); silly self help
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155 ))
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156 (t ;in another window
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157 (select-window window)
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158 (cond ((not sup-mouse-fast-select-window))
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159 ((= buttons mouse-left)
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160 (sup-move-point-to-x-y x y))
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161 ((= buttons mouse-right)
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162 (push-mark)
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163 (sup-move-point-to-x-y x y)
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164 (exchange-point-and-mark))
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165 ((= buttons mouse-center)
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166 (sup-move-point-to-x-y x y)
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167 (setq this-command 'yank)
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168 (yank))
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169 ))
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170 )))
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171
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172
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173 (defun sup-get-tty-num (term-char)
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174 "Read from terminal until TERM-CHAR is read, and return intervening number.
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175 Upon non-numeric not matching TERM-CHAR signal an error."
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176 (let
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177 ((num 0)
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178 (char (read-char)))
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179 (while (and (>= char ?0)
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180 (<= char ?9))
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181 (setq num (+ (* num 10) (- char ?0)))
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182 (setq char (read-char)))
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183 (or (eq term-char char)
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184 (error "Invalid data format in mouse command"))
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185 num))
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186
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187 (defun sup-move-point-to-x-y (x y)
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188 "Position cursor in window coordinates.
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189 X and Y are 0-based character positions in the window."
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190 (move-to-window-line y)
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191 (move-to-column x)
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192 )
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193
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194 (defun sup-pos-to-window (x y)
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195 "Find window corresponding to frame coordinates.
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196 X and Y are 0-based character positions on the frame."
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197 (let ((edges (sup-window-edges))
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198 (window nil))
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199 (while (and (not (eq window (selected-window)))
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200 (or (< y (nth 1 edges))
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201 (>= y (nth 3 edges))
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202 (< x (nth 0 edges))
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203 (>= x (nth 2 edges))))
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204 (setq window (next-window window))
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772
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205 (setq edges (sup-window-edges window))
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206 )
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207 (or window (selected-window))
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208 )
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209 )
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210
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211 ;;; sup-mouse.el ends here
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