Update of /project/mcclim/cvsroot/mcclim
In directory clnet:/tmp/cvs-serv1106
Modified Files:
incremental-redisplay.lisp recording.lisp
Log Message:
Rework displayed-output-records. Instead of setting the medium graphics
state, use with-drawing-options in :around methods (which resets the
graphics state after replaying an output record, which allows the CLIM
user to implement their own output record classes). Note the potential
for changes in incremental-redisplay, as there's no need to capture the
entire medium state, just the stream cursor position.
(Fixes horizontal partial beams in gsharp)
--- /project/mcclim/cvsroot/mcclim/incremental-redisplay.lisp 2006/05/05 10:24:02 1.63
+++ /project/mcclim/cvsroot/mcclim/incremental-redisplay.lisp 2006/05/28 21:32:43 1.64
@@ -307,6 +307,12 @@
(loop for (r) in move-overlapping do (setf res (region-union res r)))
(replay history stream res))))
+;;; FIXME: although this inherits from COMPLETE-MEDIUM-STATE, in fact
+;;; it needn't, as we only ever call SET-MEDIUM-CURSOR-POSITION on it.
+;;; Until 2006-05-28, we did also use the various medium attributes,
+;;; but with the reworking of REPLAY-OUTPUT-RECORD
+;;; (STANDARD-DISPLAYED-OUTPUT-RECORD) to use around methods and
+;;; WITH-DRAWING-OPTIONS, they are no longer necessary.
(defclass updating-stream-state (complete-medium-state)
((cursor-x :accessor cursor-x :initarg :cursor-x :initform 0)
(cursor-y :accessor cursor-y :initarg :cursor-y :initform 0)))
@@ -325,7 +331,7 @@
(or (not y-supplied-p)
(coordinate= (slot-value state 'cursor-y) cursor-y))))
-(defmethod set-medium-graphics-state :after
+(defmethod set-medium-cursor-position
((state updating-stream-state) (stream updating-output-stream-mixin))
(setf (stream-cursor-position stream)
(values (cursor-x state) (cursor-y state))))
@@ -931,7 +937,7 @@
record
nil)
(add-output-record record (stream-current-output-record stream))
- (set-medium-graphics-state (end-graphics-state record) stream)
+ (set-medium-cursor-position (end-graphics-state record) stream)
(setf (parent-cache record) parent-cache) )) ))))
record)))
@@ -989,7 +995,7 @@
(unwind-protect
(progn
(letf (((do-note-output-record stream) nil))
- (set-medium-graphics-state (start-graphics-state record) stream)
+ (set-medium-cursor-position (start-graphics-state record) stream)
(compute-new-output-records record stream)
(when *dump-updating-output*
(dump-updating record :both *trace-output*)))
@@ -1006,7 +1012,7 @@
(incremental-redisplay stream nil erases moves draws
erase-overlapping move-overlapping))
(delete-stale-updating-output record))
- (set-medium-graphics-state current-graphics-state stream)))))
+ (set-medium-cursor-position current-graphics-state stream)))))
(defun erase-rectangle (stream bounding)
(with-bounding-rectangle* (x1 y1 x2 y2)
--- /project/mcclim/cvsroot/mcclim/recording.lisp 2006/05/05 10:24:02 1.126
+++ /project/mcclim/cvsroot/mcclim/recording.lisp 2006/05/28 21:32:43 1.127
@@ -470,16 +470,13 @@
;; Is there a better value to bind to baseline?
((slot-value stream 'baseline) (slot-value stream 'baseline)))
(with-sheet-medium (medium stream)
- (let ((medium-state (make-instance 'complete-medium-state
- :medium medium))
- (transformation (medium-transformation medium)))
+ (let ((transformation (medium-transformation medium)))
(unwind-protect
(progn
(setf (medium-transformation medium)
+identity-transformation+)
(replay-output-record record stream region))
- (setf (medium-transformation medium) transformation)
- (set-medium-graphics-state medium-state medium))))))))
+ (setf (medium-transformation medium) transformation))))))))
(defmethod replay-output-record ((record compound-output-record) stream
&optional region (x-offset 0) (y-offset 0))
@@ -1025,17 +1022,6 @@
(:documentation "Stores those parts of the medium/stream graphics state
that need to be restored when drawing an output record"))
-(defgeneric set-medium-graphics-state (state medium)
- (:documentation "Sets the MEDIUM graphics state from STATE"))
-
-(defmethod set-medium-graphics-state (state medium)
- (declare (ignore medium))
- state)
-
-(defmethod set-medium-graphics-state (state (stream output-recording-stream))
- (with-sheet-medium (medium stream)
- (set-medium-graphics-state state medium)))
-
(defclass gs-ink-mixin (graphics-state)
((ink :initarg :ink :accessor graphics-state-ink)))
@@ -1046,8 +1032,10 @@
(when (and medium (not (slot-boundp obj 'ink)))
(setf (slot-value obj 'ink) (medium-ink medium))))
-(defmethod set-medium-graphics-state :after ((state gs-ink-mixin) medium)
- (setf (medium-ink medium) (graphics-state-ink state)))
+(defmethod replay-output-record :around
+ ((record gs-ink-mixin) stream &optional region x-offset y-offset)
+ (with-drawing-options (stream :ink (graphics-state-ink record))
+ (call-next-method)))
(defrecord-predicate gs-ink-mixin (ink)
(if-supplied (ink)
@@ -1057,7 +1045,6 @@
((clip :initarg :clipping-region :accessor graphics-state-clip
:documentation "Clipping region in stream coordinates.")))
-
(defmethod initialize-instance :after ((obj gs-clip-mixin)
&key (stream nil)
(medium (when stream
@@ -1073,31 +1060,10 @@
(setq clip (transform-region (medium-transformation medium)
clip-region))))))
-(defmethod set-medium-graphics-state :after ((state gs-clip-mixin) medium)
- ;;
- ;; This definition is kind of wrong. When output records are about to
- ;; be replayed only a certain region of the stream should be affected.[1]
- ;; Therefore I disabled this code, since this way only breaks the
- ;; [not very frequent case] that the output record actually contains
- ;; a clipping region different from +everywhere+, while having it in
- ;; breaks redisplay of streams in just about every case.
- ;;
- ;; Most notably Closure is affected by this, as it does the equivalent of
- ;; (draw-rectangle* medium 0 0 800 200 :ink +white+ :filled t)
- ;; (draw-text* medium "Hello" 100 100)
- ;;
- ;; Having this code in a redisplay on the region
- ;; (make-rectangle* 0 0 50 50) fills the drawing pane with a white
- ;; rectangle obscuring the text.
- ;;
- ;; [1] it is of course debatable where this extra clipping because
- ;; of redisplay should come from. Should replay-output-record set it
- ;; up? Should handle-repaint do so?
- ;;
- ;; --GB 2003-03-14
- (declare (ignore medium))
- #+nil
- (setf (medium-clipping-region medium) (graphics-state-clip state)))
+(defmethod replay-output-record :around
+ ((record gs-clip-mixin) stream &optional region x-offset y-offset)
+ (with-drawing-options (stream :clipping-region (graphics-state-clip record))
+ (call-next-method)))
(defrecord-predicate gs-clip-mixin ((:clipping-region clip))
(if-supplied (clip)
@@ -1123,8 +1089,10 @@
(unless (slot-boundp obj 'line-style)
(setf (slot-value obj 'line-style) (medium-line-style medium)))))
-(defmethod set-medium-graphics-state :after ((state gs-line-style-mixin) medium)
- (setf (medium-line-style medium) (graphics-state-line-style state)))
+(defmethod replay-output-record :around
+ ((record gs-line-style-mixin) stream &optional region x-offset y-offset)
+ (with-drawing-options (stream :line-style (graphics-state-line-style record))
+ (call-next-method)))
(defrecord-predicate gs-line-style-mixin (line-style)
(if-supplied (line-style)
@@ -1147,8 +1115,10 @@
(unless (slot-boundp obj 'text-style)
(setf (slot-value obj 'text-style) (medium-text-style medium)))))
-(defmethod set-medium-graphics-state :after ((state gs-text-style-mixin) medium)
- (setf (medium-text-style medium) (graphics-state-text-style state)))
+(defmethod replay-output-record :around
+ ((record gs-text-style-mixin) stream &optional region x-offset y-offset)
+ (with-drawing-options (stream :text-style (graphics-state-text-style record))
+ (call-next-method)))
(defrecord-predicate gs-text-style-mixin (text-style)
(if-supplied (text-style)
@@ -1187,17 +1157,6 @@
(record2 standard-displayed-output-record))
(region-equal record record2))
-;;; This is an around method so that more specific before methods can be
-;;; defined for the various mixin classes, that modify the state after it has
-;;; been set in the graphics state.
-
-(defmethod replay-output-record :around
- ((record standard-displayed-output-record) stream
- &optional region x-offset y-offset)
- (declare (ignore region x-offset y-offset))
- (set-medium-graphics-state record stream)
- (call-next-method))
-
(defclass coord-seq-mixin ()
((coord-seq :accessor coord-seq :initarg :coord-seq))
(:documentation "Mixin class that implements methods for records that contain
@@ -1851,8 +1810,15 @@
substring
(setf (stream-cursor-position stream)
(values start-x start-y))
- (set-medium-graphics-state substring medium)
- (stream-write-output stream string nil)))
+ ;; FIXME: a bit of an abstraction inversion. Should
+ ;; the styled strings here not simply be output
+ ;; records? Then we could just replay them and all
+ ;; would be well. -- CSR, 20060528.
+ (with-drawing-options (stream
+ :ink (graphics-state-ink substring)
+ :clipping-region (graphics-state-clip substring)
+ :text-style (graphics-state-text-style substring))
+ (stream-write-output stream string nil))))
(when wrapped ; FIXME
(draw-rectangle* medium
(+ wrapped 0) start-y
