;;; -*- Mode: Lisp; Package: CLIM-INTERNALS -*-

   ( c ) copyright 1998,1999,2000 by   (  ) ,
   ( c ) copyright 2000 by
;;;           Iban Hatchondo ()
              (  )
              (  )

;;; This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation ; either
  version 2 of the License , or ( at your option ) any later version .
;;;
;;; This library is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Library General Public License for more details .
;;;
  You should have received a copy of the GNU Library General Public
;;; License along with this library; if not, write to the 
  Free Software Foundation , Inc. , 59 Temple Place - Suite 330 ,
  Boston , MA   02111 - 1307   USA .



;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
  The Repaint Protocol

(in-package :clim-internals)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; repaint protocol functions

(defmethod queue-repaint ((sheet basic-sheet) (event window-repaint-event))
  (queue-event sheet event))

(defmethod handle-repaint ((sheet basic-sheet) region)    
  (declare (ignore region))
  nil)

(defmethod repaint-sheet ((sheet basic-sheet) region)
  (map-over-sheets-overlapping-region #'(lambda (s)
					  (handle-repaint s region))
				      sheet
				      region))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; repaint protocol classes

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; standard repainting mixin

(defclass standard-repainting-mixin () ())

(defmethod dispatch-event
    ((sheet standard-repainting-mixin) (event window-repaint-event)) 
  (queue-repaint sheet event))

(defmethod dispatch-repaint ((sheet standard-repainting-mixin) region)
  (when (sheet-mirror sheet)            ;only dispatch repaints, when the sheet has a mirror
    (queue-repaint sheet (make-instance 'window-repaint-event
                                        :sheet sheet
                                        :region (transform-region
                                                 (sheet-native-transformation sheet)
                                                 region)))))

(defmethod handle-event ((sheet standard-repainting-mixin)
			 (event window-repaint-event))
  (handle-repaint sheet (window-event-region event)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; immediate repainting mixin

(defclass immediate-repainting-mixin () ())

(defmethod dispatch-event
    ((sheet immediate-repainting-mixin) (event window-repaint-event))
  (handle-repaint sheet (window-event-region event)))

(defmethod dispatch-repaint ((sheet immediate-repainting-mixin) region)
  (handle-repaint sheet region))

(defmethod handle-event ((sheet immediate-repainting-mixin)
			 (event window-repaint-event))
  (handle-repaint sheet (window-event-region event)))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; sheet mute repainting mixin

(defclass sheet-mute-repainting-mixin () ())

(defmethod dispatch-repaint ((sheet sheet-mute-repainting-mixin) region)
  (when (sheet-mirror sheet)            ;only dispatch repaints, when the sheet has a mirror
    (queue-repaint sheet (make-instance 'window-repaint-event
                                        :sheet sheet
                                        :region (transform-region
                                                 (sheet-native-transformation sheet)
                                                 region)))))

;;; I know what the spec says about sheet-mute-repainting-mixin, but I don't
;;; think it's right; "repaint-sheet that does nothing" makes no sense.
  -- 
#+nil
(defmethod repaint-sheet ((sheet sheet-mute-repainting-mixin) region)
  (declare (ignorable sheet region))
  (format *trace-output* "repaint ~S~%" sheet)
  (values))

(defmethod handle-repaint ((sheet sheet-mute-repainting-mixin) region)
  (declare (ignore region))
  nil)

(defclass clim-repainting-mixin
    (#+clim-mp standard-repainting-mixin #-clim-mp immediate-repainting-mixin)
  ()
  (:documentation "Internal class that implements repainting protocol based on
  whether or not multiprocessing is supported."))

 -*- Mode: Lisp; Package: CLIM-INTERNALS -*-
           Iban Hatchondo ()
 This library is free software; you can redistribute it and/or
 either

 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 License along with this library; if not, write to the 




 repaint protocol functions


 repaint protocol classes


 standard repainting mixin
only dispatch repaints, when the sheet has a mirror


 immediate repainting mixin


 sheet mute repainting mixin
only dispatch repaints, when the sheet has a mirror
 I know what the spec says about sheet-mute-repainting-mixin, but I don't
 think it's right; "repaint-sheet that does nothing" makes no sense.

   ( c ) copyright 1998,1999,2000 by   (  ) ,
   ( c ) copyright 2000 by
              (  )
              (  )

  modify it under the terms of the GNU Library General Public
  version 2 of the License , or ( at your option ) any later version .
  Library General Public License for more details .
  You should have received a copy of the GNU Library General Public
  Free Software Foundation , Inc. , 59 Temple Place - Suite 330 ,
  Boston , MA   02111 - 1307   USA .



  The Repaint Protocol

(in-package :clim-internals)


(defmethod queue-repaint ((sheet basic-sheet) (event window-repaint-event))
  (queue-event sheet event))

(defmethod handle-repaint ((sheet basic-sheet) region)    
  (declare (ignore region))
  nil)

(defmethod repaint-sheet ((sheet basic-sheet) region)
  (map-over-sheets-overlapping-region #'(lambda (s)
					  (handle-repaint s region))
				      sheet
				      region))



(defclass standard-repainting-mixin () ())

(defmethod dispatch-event
    ((sheet standard-repainting-mixin) (event window-repaint-event)) 
  (queue-repaint sheet event))

(defmethod dispatch-repaint ((sheet standard-repainting-mixin) region)
    (queue-repaint sheet (make-instance 'window-repaint-event
                                        :sheet sheet
                                        :region (transform-region
                                                 (sheet-native-transformation sheet)
                                                 region)))))

(defmethod handle-event ((sheet standard-repainting-mixin)
			 (event window-repaint-event))
  (handle-repaint sheet (window-event-region event)))


(defclass immediate-repainting-mixin () ())

(defmethod dispatch-event
    ((sheet immediate-repainting-mixin) (event window-repaint-event))
  (handle-repaint sheet (window-event-region event)))

(defmethod dispatch-repaint ((sheet immediate-repainting-mixin) region)
  (handle-repaint sheet region))

(defmethod handle-event ((sheet immediate-repainting-mixin)
			 (event window-repaint-event))
  (handle-repaint sheet (window-event-region event)))


(defclass sheet-mute-repainting-mixin () ())

(defmethod dispatch-repaint ((sheet sheet-mute-repainting-mixin) region)
    (queue-repaint sheet (make-instance 'window-repaint-event
                                        :sheet sheet
                                        :region (transform-region
                                                 (sheet-native-transformation sheet)
                                                 region)))))

  -- 
#+nil
(defmethod repaint-sheet ((sheet sheet-mute-repainting-mixin) region)
  (declare (ignorable sheet region))
  (format *trace-output* "repaint ~S~%" sheet)
  (values))

(defmethod handle-repaint ((sheet sheet-mute-repainting-mixin) region)
  (declare (ignore region))
  nil)

(defclass clim-repainting-mixin
    (#+clim-mp standard-repainting-mixin #-clim-mp immediate-repainting-mixin)
  ()
  (:documentation "Internal class that implements repainting protocol based on
  whether or not multiprocessing is supported."))
