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annotate shared/motion.el @ 34:034ed479179e

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author Henry S Thompson <ht@inf.ed.ac.uk>
date Tue, 21 Nov 2023 15:52:12 +0000
parents 107d592c5f4a
children
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107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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1 ;;; Copyright (C) 1990 Alan M. Carroll
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
2 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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3 ;;; This file is for use with Epoch, a modified version of GNU Emacs.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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4 ;;; Requires Epoch 3.2 or later.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
5 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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6 ;;; This code is distributed in the hope that it will be useful,
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
7 ;;; bute WITHOUT ANY WARRANTY. No author or distributor accepts
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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8 ;;; responsibility to anyone for the consequences of using this code
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
9 ;;; or for whether it serves any particular purpose or works at all,
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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10 ;;; unless explicitly stated in a written agreement.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
11 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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12 ;;; Everyone is granted permission to copy, modify and redistribute
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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13 ;;; this code, but only under the conditions described in the
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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14 ;;; GNU Emacs General Public License, except the original author nor his
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
15 ;;; agents are bound by the License in their use of this code.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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diff changeset
16 ;;; (These special rights for the author in no way restrict the rights of
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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diff changeset
17 ;;; others given in the License or this prologue)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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18 ;;; A copy of this license is supposed to have been given to you along
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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19 ;;; with Epoch so you can know your rights and responsibilities.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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20 ;;; It should be in a file named COPYING. Among other things, the
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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21 ;;; copyright notice and this notice must be preserved on all copies.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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22 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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23 (provide 'motion)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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24 (require 'button)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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25 (require 'mouse)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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26 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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27 ;;; version tohandle mouse stuff
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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28 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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29 ;;; [cjl] now use primitive epoch::move-button when possible.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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30 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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31 (defvar horizontal-drag-inc 5 "Number of columns to scroll when the pointer is to the left or right of the window")
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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32 (defvar vertical-drag-inc 2 "Number of lines to scroll when the pointer is above or below the edge of the window")
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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33
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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34 (defvar mouse::downp nil "State variable for mouse dragging internals")
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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35 (defvar mouse::last-point -1 "Last location of a motion event")
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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36
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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37 (make-variable-buffer-local 'drag-button)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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38 (make-variable-buffer-local 'mouse-down-marker)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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39
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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40 (defvar motion::attribute (reserve-attribute) "Attribute for drag buttons")
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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41 (setq epoch::buttons-modify-buffer nil)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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42
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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43 (defvar motion::style nil "style used by drag buttons")
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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44
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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45 ;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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46 ;; Set window-setup-hook to call motion::init(), which sets default
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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47 ;; style for button dragging
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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48 ;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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49 (epoch-add-setup-hook 'motion::init)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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50 (defun motion::init ()
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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51 (and (not motion::style) (setq motion::style (make-style)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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52 (set-style-foreground motion::style (foreground))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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53 (set-style-background motion::style (background))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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54 (set-style-underline motion::style (foreground))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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55 (set-attribute-style motion::attribute motion::style)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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56 ;; enable the handler
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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57 (push-event 'motion 'motion::handler)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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58 ;; set up hints on all the current screens
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Henry S. Thompson <ht@inf.ed.ac.uk>
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59 (dolist (s (screen-list t)) (epoch::set-motion-hints t s))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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60 ;; enable hints on future screens
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Henry S. Thompson <ht@inf.ed.ac.uk>
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61 (push '(motion-hints t) epoch::screen-properties)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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62 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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63
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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64 (setq-default drag-button nil)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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parents:
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65 (setq-default mouse-down-marker nil)
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66
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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67 ;;; ------------------------------------------------------------------------
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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68 (defun set-mouse-marker (&optional location)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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69 (if (null mouse-down-marker)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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70 (setq mouse-down-marker (make-marker))
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71 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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72 (set-marker mouse-down-marker (or location (point)))
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73 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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74 ;;; --------------------------------------------------------------------------
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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75 ;;; generic arg is a list of ( POINT BUFFER WINDOW SCREEN )
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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76 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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77 (defun end-mouse-drag (arg)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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78 (setq mouse::last-point -1) ;always do this cleanup
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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79 (when mouse::downp
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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80 (setq mouse::downp nil)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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81 (mouse::copy-button drag-button)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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82 (if (buttonp drag-button)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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83 (if (<= (point) (button-start drag-button))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
84 (progn
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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85 (push-mark (button-end drag-button) t)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
86 (goto-char (button-start drag-button))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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87 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
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88 ;; ELSE point is past drag button start
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
89 (progn
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
90 (push-mark (button-start drag-button) t)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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parents:
diff changeset
91 (goto-char (button-end drag-button))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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92 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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93 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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94 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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95 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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96 )
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97
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
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parents:
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98 (defun start-mouse-drag (arg)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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99 (when arg
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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100 (setq mouse::downp 'start)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
101 (mouse::set-point arg)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
102 (set-mouse-marker)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
103 (setq mouse::last-point (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
104 (if drag-button
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
105 (progn (delete-button drag-button) (setq drag-button nil) )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
106 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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107 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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108 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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109
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
110 (defun extend-mouse-drag (arg)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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111 (setq mouse::downp 'extend)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
112 (let
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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113 (
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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114 (m1 (and drag-button (button-start drag-button)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
115 (m2 (and drag-button (button-end drag-button)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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116 (spot (car arg)) ;point of the mouse click.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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117 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
118 (if (null m1) (setq m1 0))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
119 (if (null m2) (setq m2 0))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
120 (cond
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
121 ((or (null drag-button) (null mouse-down-marker))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
122 (setq drag-button (add-button (point) spot motion::attribute) )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
123 (set-mouse-marker)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
124 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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125 ((<= spot m1)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
126 (setq drag-button (move-button drag-button spot m2) )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
127 (set-mouse-marker m2)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
128 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
129 ((>= spot m2)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
130 (setq drag-button (move-button drag-button m1 spot) )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
131 (set-mouse-marker m1)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
132 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
133 ((<= mouse-down-marker spot)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
134 (setq drag-button (move-button drag-button m1 spot) )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
135 (set-mouse-marker m1)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
136 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
137 (t
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
138 (setq drag-button (move-button drag-button spot m2) )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
139 (set-mouse-marker m2)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
140 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
141 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
142 (epoch::redisplay-screen)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
143 (setq mouse::last-point (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
144 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
145 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
146
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
147 ;;; ------------------------------------------------------------------------
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
148 ;;; Define the handler
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
149 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
150 (defun motion::handler (type value scr)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
151 (if (null mouse-down-marker) (set-mouse-marker))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
152 (if (and (boundp 'mouse::downp) mouse::downp)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
153 (mouse-sweep-update)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
154 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
155 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
156 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
157 (defun mouse-sweep-update()
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
158 (let*
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
159 (x y pos drag-m1 drag-m2 pnt orig-m1 orig-m2
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
160 (out-of-bounds t)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
161 (epoch::event-handler-abort nil)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
162 (w (selected-window))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
163 (w-edges (window-edges w))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
164 (left (car w-edges))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
165 (top (elt w-edges 1))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
166 (right (- (elt w-edges 2) (+ 2 left)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
167 (bottom (- (elt w-edges 3) (+ 2 top)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
168 ever
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
169 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
170 (if drag-button
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
171 (progn (setq orig-m1 (or (button-start drag-button) -1))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
172 (setq orig-m2 (or (button-end drag-button) -1)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
173 (progn (setq orig-m1 mouse-down-marker)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
174 (setq orig-m2 (point))))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
175 (while
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
176 (and
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
177 out-of-bounds
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
178 (setq pos (query-mouse))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
179 (/= 0 (logand mouse-any-mask (elt pos 2)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
180 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
181 ;;convert to window relative co-ordinates
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
182 (setq x (- (car pos) left))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
183 (setq y (- (elt pos 1) top))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
184 (setq out-of-bounds
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
185 (not (and (<= 0 y) (<= y bottom) (<= 0 x) (<= x right)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
186 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
187
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
188 ;; scrolling conditions
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
189 (condition-case errno
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
190 (progn
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
191 (if (< y 0) (scroll-down vertical-drag-inc))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
192 (if (> y bottom) (scroll-up vertical-drag-inc))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
193 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
194 (error ) ;nothing, just catch it
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
195 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
196 (if (< x 0) (scroll-right horizontal-drag-inc))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
197 (if (> x right) (scroll-left horizontal-drag-inc))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
198 (setq y (max 0 (min bottom y)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
199 (setq x (max 0 (min right x)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
200
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
201 (setq pnt (car (epoch::coords-to-point (+ x left) (+ y top))))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
202 (when (/= mouse::last-point pnt)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
203 (if (> mouse-down-marker pnt)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
204 (progn
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
205 (setq drag-m1 pnt)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
206 (setq drag-m2 (marker-position mouse-down-marker))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
207 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
208 (progn
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
209 (setq drag-m1 (marker-position mouse-down-marker))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
210 (setq drag-m2 pnt)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
211 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
212 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
213 ;; don't move for trivial reasons
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
214 (when (or ever (/= drag-m1 orig-m1) (/= drag-m2 orig-m2))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
215 (setq ever t)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
216 (if (not drag-button)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
217 (setq drag-button
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
218 (add-button mouse-down-marker
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
219 (point) motion::attribute )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
220 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
221 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
222 (move-button drag-button drag-m1 drag-m2)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
223 (epoch::redisplay-screen)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
224 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
225 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
226 (setq mouse::last-point pnt)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
227 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
228 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
229 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
230 ;;; ------------------------------------------------------------------------
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
231 ;;; Code for selecting lines using motion events. Assumes that the line is
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
232 ;;; left unmarked on button up
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
233 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
234 (defvar mouse::line-button nil "Button for selected line")
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
235 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
236 (defun mouse-select-line-start (arg)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
237 (mouse::set-point arg) ;go there
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
238 (setq mouse::last-point (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
239 (let ( bol )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
240 (save-excursion
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
241 (beginning-of-line)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
242 (setq bol (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
243 (end-of-line)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
244 (setq mouse::line-button (add-button bol (point) motion::attribute))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
245 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
246 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
247 (push-event 'motion 'mouse-select-line-update)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
248 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
249 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
250 (defun mouse-select-line-end (arg)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
251 (setq mouse::last-point -1)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
252 (when mouse::line-button (delete-button mouse::line-button))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
253 (pop-event 'motion)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
254 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
255 ;;;
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
256 (defun mouse-select-line-update (type value scr)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
257 (let*
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
258 (
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
259 y
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
260 pos
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
261 bol
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
262 (out-of-bounds t)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
263 (epoch::event-handler-abort nil)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
264 (w-edges (window-edges (selected-window)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
265 (top (elt w-edges 1))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
266 (bottom (- (elt w-edges 3) (+ 2 top)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
267 max-vscroll
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
268 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
269 (while
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
270 (and
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
271 out-of-bounds
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
272 (setq pos (query-mouse))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
273 (/= 0 (logand mouse-any-mask (elt pos 2)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
274 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
275 ;;convert to window relative co-ordinates
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
276 (setq y (- (elt pos 1) top))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
277 (setq out-of-bounds (not (and (<= 0 y) (<= y bottom))))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
278
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
279 ;; Scrolling hard, because of possibly shrink-wrapped windows.
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
280 ;; set max-vscroll to be the most we could scroll down and not have
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
281 ;; empty lines at the bottom
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
282 (save-excursion
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
283 (move-to-window-line bottom) ;go to the last line in the window
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
284 (setq max-vscroll
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
285 (- vertical-drag-inc (forward-line vertical-drag-inc))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
286 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
287 (if (and (> max-vscroll 0) (eobp) (= 0 (current-column)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
288 (decf max-vscroll)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
289 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
290 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
291 (condition-case errno
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
292 (progn
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
293 (if (< y 0) (scroll-down vertical-drag-inc))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
294 (if (> y bottom) (scroll-up (min max-vscroll vertical-drag-inc)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
295 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
296 ;; CONDITIONS
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
297 (error) ;nothing, just want to catch it
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
298 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
299 (setq y (max 0 (min bottom y)))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
300
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
301 ;;move to the new point
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
302 (move-to-window-line y)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
303 (beginning-of-line) (setq bol (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
304 (end-of-line)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
305 (when (/= mouse::last-point (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
306 (move-button mouse::line-button bol (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
307 (epoch::redisplay-screen)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
308 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
309 (setq mouse::last-point (point))
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
310 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
311 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
312 )
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
313 ;;; --------------------------------------------------------------------------
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
314 ;;; install all our variouse handlers
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
315 (global-set-mouse mouse-left mouse-down 'start-mouse-drag)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
316 (global-set-mouse mouse-left mouse-up 'end-mouse-drag)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
317 (global-set-mouse mouse-right mouse-down 'extend-mouse-drag)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
318 (global-set-mouse mouse-right mouse-up 'end-mouse-drag)
107d592c5f4a DICE versions, used by pers/common, recursive, I think/hope
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
319 (global-set-mouse mouse-middle mouse-down 'mouse::paste-cut-buffer)