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- From: marca@ncsa.uiuc.edu (Marc Andreessen)
- Subject: Dragging mode line - request
- Message-ID: <9211180332.AA05862@wintermute.ncsa.uiuc.edu>
- Sender: daemon@cis.ohio-state.edu
- Organization: GNUs Not Usenet
- References: <11524@burns.ed.ac.uk>
- Distribution: gnu
- Date: Tue, 17 Nov 1992 11:32:46 GMT
- Lines: 73
-
- Try this......... (you might have to have a few things from the imouse
- package also; see the FAQ).
-
- Marc
-
- ;;; Modeline drag support, extracted from Imouse package.
-
- (require 'cl)
- (require 'motion)
- (require 'drag)
-
- (defvar simplemouse::drag-scroll-start nil
- "Where mouse-drag-scroll started.")
- (defvar simplemouse::drag-scroll-win nil
- "The window where mouse-drag-scroll started.")
- (defvar simplemouse::drag-scroll-crs nil
- "The cursor used before mouse-drag-scroll started.")
-
- (defvar drag-modeline-glyph 116
- "*The cursor glyph used to indicate drag scrolling.")
-
- (defun eval-in-window (window &rest forms)
- "Switch to WINDOW, evaluate FORMS, return to original window."
- (` (let ((OriginallySelectedWindow (selected-window)))
- (unwind-protect
- (progn
- (select-window (, window))
- (,@ forms))
- (select-window OriginallySelectedWindow)))))
- (put 'eval-in-window 'lisp-indent-hook 1)
-
- (defun mouse-move-modeline (mdata)
- "Shrink or stretch a window by dragging its modeline."
- (setq mouse::downp nil)
- (setq simplemouse::drag-scroll-win (nth 2 mdata))
- (setq simplemouse::drag-scroll-crs (epoch::cursor-glyph nil))
- (let ((modeline (nth 3 (window-pixedges simplemouse::drag-scroll-win))))
- (epoch::warp-pointer (/ (window-pixwidth simplemouse::drag-scroll-win) 2)
- (- modeline 3)))
- (setq simplemouse::drag-scroll-start (epoch::query-pointer))
- (epoch::cursor-glyph drag-modeline-glyph)
- (message "Hold button down to shrink or stretch window, release it when done."))
-
- (defun mouse-move-modeline-terminate (mdata)
- "The up click handler that goes with mouse-move-modeline.
- This actually resizes the window in one fell swoop"
- (unwind-protect
- (let* ((drag-scroll-end (epoch::query-pointer))
- (delta-y (- (nth 1 simplemouse::drag-scroll-start)
- (nth 1 drag-scroll-end)))
- (pixheight (window-pixheight simplemouse::drag-scroll-win))
- (height (window-height simplemouse::drag-scroll-win)))
- (unless (< (abs delta-y) 2)
- (eval-in-window simplemouse::drag-scroll-win
- (move-modeline-up (/ (* delta-y height) pixheight)))))
- ;; Restore normal environment.
- (epoch::cursor-glyph simplemouse::drag-scroll-crs)
- (message "width: %d, height: %d"
- (window-width simplemouse::drag-scroll-win)
- (window-height simplemouse::drag-scroll-win)))
- )
-
- (defun simplemouse-do-bindings ()
- "Bind the mouse keys according to Simplemouse's preferences."
- (let ((MODE-MODIFY (+ mouse-middle mouse-mode -1))
- (DOWN mouse-down)
- (UP mouse-up))
- (global-set-mouse MODE-MODIFY DOWN 'mouse-move-modeline)
- (global-set-mouse MODE-MODIFY UP 'mouse-move-modeline-terminate)
- ))
-
- (simplemouse-do-bindings)
-
-