massive reduction of unneeded files

1 files changed, 0 insertions, 3500 deletions

diff --git a/nx-X11/lib/dpstk/DPSScrollW.c b/nx-X11/lib/dpstk/DPSScrollW.c
deleted file mode 100644
index 9c2f7e005..000000000
--- a/nx-X11/lib/dpstk/DPSScrollW.c
+++ /dev/null
@@ -1,3500 +0,0 @@
- /* 
- * DPSScrollW.c
- *
- * (c) Copyright 1993-1994 Adobe Systems Incorporated.
- * All rights reserved.
- * 
- * Permission to use, copy, modify, distribute, and sublicense this software
- * and its documentation for any purpose and without fee is hereby granted,
- * provided that the above copyright notices appear in all copies and that
- * both those copyright notices and this permission notice appear in
- * supporting documentation and that the name of Adobe Systems Incorporated
- * not be used in advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.  No trademark license
- * to use the Adobe trademarks is hereby granted.  If the Adobe trademark
- * "Display PostScript"(tm) is used to describe this software, its
- * functionality or for any other purpose, such use shall be limited to a
- * statement that this software works in conjunction with the Display
- * PostScript system.  Proper trademark attribution to reflect Adobe's
- * ownership of the trademark shall be given whenever any such reference to
- * the Display PostScript system is made.
- * 
- * ADOBE MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THE SOFTWARE FOR
- * ANY PURPOSE.  IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
- * ADOBE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NON- INFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO EVENT SHALL ADOBE BE LIABLE
- * TO YOU OR ANY OTHER PARTY FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE, STRICT LIABILITY OR ANY OTHER ACTION ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  ADOBE WILL NOT
- * PROVIDE ANY TRAINING OR OTHER SUPPORT FOR THE SOFTWARE.
- * 
- * Adobe, PostScript, and Display PostScript are trademarks of Adobe Systems
- * Incorporated which may be registered in certain jurisdictions
- * 
- * Author:  Adobe Systems Incorporated
- */
-/* $XFree86$ */
-
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <X11/ShellP.h>
-#include <X11/Xproto.h>
-#include <stdlib.h>
-#include <Xm/Xm.h>
-
-/* There are no words to describe how I feel about having to do this */
-
-#if XmVersion > 1001		
-#include <Xm/ManagerP.h>
-#else
-#include <Xm/XmP.h>
-#endif
-
-#include <Xm/DrawingA.h>
-#include <Xm/ScrolledW.h>
-#include <Xm/ScrollBar.h>
-
-#include <DPS/dpsXclient.h>
-#include "dpsXcommonI.h"
-#include <DPS/dpsXshare.h>
-#include "DSWwraps.h"
-#include <stdio.h>
-#include <DPS/DPSScrollWP.h>
-
-#undef MIN
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
-#undef MAX
-#define MAX(a, b) ((a) > (b) ? (a) : (b))
-#undef ABS
-#define ABS(x) ((x) >= 0 ? (x) : -(x))
-#undef CEIL
-#define CEIL(x) ((int) ((float)((int)(x)) == (x) ? (x) : (x) + 1))
-
-/* Define macros to get rectangle entries.  All rectangles are stored as
-   x, y, width, height.  NOTE:  ONLY FOR USER SPACE RECTANGLES, NOT X
-   RECTANGLES!!!! */
-
-#define LEFT(r) ((r)[0])
-#define RIGHT(r) ((r)[0] + (r)[2])
-#define BOTTOM(r) ((r)[1])
-#define TOP(r) ((r)[1] + (r)[3])
-#define WIDTH(r) ((r)[2])
-#define HEIGHT(r) ((r)[3])
-
-/* This is used in converting bounding boxes into user space to ensure
-   that we don't end up slopping over into another pixel */
-
-#define DELTA .001
-
-#define Offset(field) XtOffsetOf(DPSScrolledWindowRec, sw.field)
-
-static float initScale = 1.0;
-
-static XtResource resources[] = {
-    {XtNcontext, XtCContext, XtRDPSContext, sizeof(DPSContext),
-	Offset(context), XtRImmediate, (XtPointer) NULL},
-    {XtNareaWidth, XtCAreaWidth, XtRInt, sizeof(int),
-	Offset(area_width), XtRImmediate, (XtPointer) ((int) (8.5*72))},
-    {XtNareaHeight, XtCAreaHeight, XtRInt, sizeof(int),
-	Offset(area_height), XtRImmediate, (XtPointer) (11*72)},
-    {XtNscale, XtCScale, XtRFloat, sizeof(float),
-	Offset(scale), XtRFloat, (XtPointer) &initScale},
-    {XtNctm, XtCCtm, XtRFloatArray, sizeof(float *),
-	Offset(ctm_ptr), XtRImmediate, (XtPointer) NULL},
-    {XtNinvCtm, XtCInvCtm, XtRFloatArray, sizeof(float *),
-	Offset(inv_ctm_ptr), XtRImmediate, (XtPointer) NULL},
-    {XtNuseBackingPixmap, XtCUseBackingPixmap, XtRBoolean, sizeof(Boolean),
-	Offset(use_backing_pixmap), XtRImmediate, (XtPointer) True},
-    {XtNuseFeedbackPixmap, XtCUseFeedbackPixmap, XtRBoolean, sizeof(Boolean),
-	Offset(use_feedback_pixmap), XtRImmediate, (XtPointer) True},
-    {XtNbackingPixmap, XtCBackingPixmap, XtRPixmap, sizeof(Pixmap),
-	Offset(backing_pixmap), XtRImmediate, (XtPointer) None},
-    {XtNfeedbackPixmap, XtCFeedbackPixmap, XtRPixmap, sizeof(Pixmap),
-	Offset(feedback_pixmap), XtRImmediate, (XtPointer) None},
-    {XtNdocumentSizePixmaps, XtCDocumentSizePixmaps,
-	XtRBoolean, sizeof(Boolean),
-	Offset(document_size_pixmaps), XtRImmediate, (XtPointer) False},
-    {XtNwindowGState, XtCWindowGState, XtRDPSGState, sizeof(DPSGState),
-	Offset(window_gstate), XtRImmediate, (XtPointer) 0},
-    {XtNbackingGState, XtCBackingGState, XtRDPSGState, sizeof(DPSGState),
-	Offset(backing_gstate), XtRImmediate, (XtPointer) 0},
-    {XtNfeedbackGState, XtCFeedbackGState, XtRDPSGState, sizeof(DPSGState),
-	Offset(feedback_gstate), XtRImmediate, (XtPointer) 0},
-    {XtNdirtyAreas, XtCDirtyAreas, XtRFloatArray, sizeof(float *),
-	Offset(dirty_areas), XtRImmediate, (XtPointer) NULL},
-    {XtNnumDirtyAreas, XtCNumDirtyAreas, XtRShort, sizeof(short),
-	Offset(num_dirty_areas), XtRImmediate, (XtPointer) 0},
-    {XtNpixmapLimit, XtCPixmapLimit, XtRInt, sizeof(int),
-	Offset(pixmap_limit), XtRImmediate, (XtPointer) -1},
-    {XtNabsolutePixmapLimit, XtCAbsolutePixmapLimit, XtRInt, sizeof(int),
-	Offset(absolute_pixmap_limit), XtRImmediate, (XtPointer) 0},
-    {XtNwatchProgress, XtCWatchProgress, XtRBoolean, sizeof(Boolean),
-	Offset(watch_progress), XtRImmediate, (XtPointer) False},
-    {XtNwatchProgressDelay, XtCWatchProgressDelay, XtRInt, sizeof(int),
-	Offset(watch_progress_delay), XtRImmediate, (XtPointer) 1000},
-    {XtNminimalDrawing, XtCMinimalDrawing, XtRBoolean, sizeof(Boolean),
-	Offset(minimal_drawing), XtRImmediate, (XtPointer) False},
-    {XtNapplicationScrolling, XtCApplicationScrolling,
-	XtRBoolean, sizeof(Boolean),
-	Offset(application_scrolling), XtRImmediate, (XtPointer) False},
-    {XtNsetupCallback, XtCCallback, XtRCallback, sizeof(XtCallbackList),
-	Offset(setup_callback), XtRCallback, (XtPointer) NULL},
-    {XtNexposeCallback, XtCCallback, XtRCallback, sizeof(XtCallbackList),
-	Offset(expose_callback), XtRCallback, (XtPointer) NULL},
-    {XtNbackgroundCallback, XtCCallback, XtRCallback, sizeof(XtCallbackList),
-	Offset(background_callback), XtRCallback, (XtPointer) NULL},
-    {XtNfeedbackCallback, XtCCallback, XtRCallback, sizeof(XtCallbackList),
-	Offset(feedback_callback), XtRCallback, (XtPointer) NULL},
-    {XtNresizeCallback, XtCCallback, XtRCallback, sizeof(XtCallbackList),
-	Offset(resize_callback), XtRCallback, (XtPointer) NULL},
-};
-
-static Boolean GiveFeedbackPixmap(Widget w, Pixmap p, int width, int height, int depth, Screen *screen);
-static Boolean SetValues(Widget old, Widget req, Widget new, ArgList args, Cardinal *num_args);
-static Boolean TakeFeedbackPixmap(Widget w, Pixmap *p, int *width, int *height, int *depth, Screen **screen);
-static XtGeometryResult GeometryManager(Widget w, XtWidgetGeometry *desired, XtWidgetGeometry *allowed);
-static XtGeometryResult QueryGeometry(Widget w, XtWidgetGeometry *desired, XtWidgetGeometry *allowed);
-static void AbortPendingDrawing(Widget w);
-static void AddExposureToPending(DPSScrolledWindowWidget dsw, XExposeEvent *ev);
-static void AddRectsToDirtyArea(DPSScrolledWindowWidget dsw, float *newRect, int n);
-static void AddRectsToPending(DPSScrolledWindowWidget dsw, int *newRect, int n);
-static void AddToDirtyArea(Widget w, float *rect, long n);
-static void AddUserSpaceRectsToPending(DPSScrolledWindowWidget dsw, float *newRect, int n);
-static void CallFeedbackCallback(DPSScrolledWindowWidget dsw, float *r, int n);
-static void CheckFeedbackPixmap(DPSScrolledWindowWidget dsw);
-static void ClassPartInitialize(WidgetClass widget_class);
-static void ConvertPSToX(Widget w, double psX, double psY, int *xX, int *xY);
-static void ConvertToOrigPS(DPSScrolledWindowWidget dsw, int xX, int xY, float *psX, float *psY);
-static void ConvertToPS(DPSScrolledWindowWidget dsw, float xX, float xY, float *psX, float *psY);
-static void ConvertToX(DPSScrolledWindowWidget dsw, float psX, float psY, int *xX, int *xY);
-static void ConvertXToPS(Widget w, long xX, long xY, float *psX, float *psY);
-static void CopyRectsToCurrentDrawing(DPSScrolledWindowWidget dsw, float *newRect, int n);
-static void CopyRectsToDirtyArea(DPSScrolledWindowWidget dsw, float *newRect, int n);
-static void CopyToFeedbackPixmap(DPSScrolledWindowWidget dsw, float *rects, int n);
-static void Destroy(Widget widget);
-static void DrawingAreaExpose(Widget w, XtPointer clientData, XtPointer callData);
-static void DrawingAreaGraphicsExpose(Widget w, XtPointer clientData, XEvent *event, Boolean *goOn);
-static void EndFeedbackDrawing(Widget w, int restore);
-static void FinishDrawing(DPSScrolledWindowWidget dsw);
-static void FinishPendingDrawing(Widget w);
-static void GetDrawingInfo(Widget w, DSWDrawableType *type, Drawable *drawable, DPSGState *gstate, DPSContext *context);
-static void GetScrollInfo(Widget w, int *h_value, int *h_size, int *h_max, int *v_value, int *v_size, int *v_max);
-static void HScrollCallback(Widget w, XtPointer clientData, XtPointer callData);
-static void Initialize(Widget request, Widget new, ArgList args, Cardinal *num_args);
-static void Realize(Widget w, XtValueMask *mask, XSetWindowAttributes *attr);
-static void Resize(Widget w);
-static void ScrollBy(Widget w, long dx, long dy);
-static void ScrollMoved(DPSScrolledWindowWidget dsw);
-static void ScrollPoint(Widget w, double psX, double psY, long xX, long xY);
-static void ScrollTo(Widget w, long x, long y);
-static void SetFeedbackDirtyArea(Widget w, float *rects, int count, XtPointer continue_feedback_data);
-static void SetScale(Widget w, double scale, long fixedX, long fixedY);
-static void SetScaleAndScroll(Widget w, double scale, double psX, double psY, long xX, long xY);
-static void StartFeedbackDrawing(Widget w, XtPointer start_feedback_data);
-static void UpdateDrawing(Widget w, float *rects, int count);
-static void VScrollCallback(Widget w, XtPointer clientData, XtPointer callData);
-
-DPSScrolledWindowClassRec dpsScrolledWindowClassRec = {
-    /* Core class part */
-  {
-    /* superclass	     */	(WidgetClass) &xmManagerClassRec,
-    /* class_name	     */ "DPSScrolledWindow",
-    /* widget_size	     */ sizeof(DPSScrolledWindowRec),
-    /* class_initialize      */ NULL,
-    /* class_part_initialize */ ClassPartInitialize,
-    /* class_inited          */	False,
-    /* initialize	     */	Initialize,
-    /* initialize_hook       */	NULL,
-    /* realize		     */	Realize,
-    /* actions		     */	NULL,
-    /* num_actions	     */	0,
-    /* resources	     */	resources,
-    /* num_resources	     */	XtNumber(resources),
-    /* xrm_class	     */	NULLQUARK,
-    /* compress_motion	     */	True,
-    /* compress_exposure     */	XtExposeCompressMultiple,
-    /* compress_enterleave   */	True,
-    /* visible_interest	     */	False,
-    /* destroy		     */	Destroy,
-    /* resize		     */	Resize,
-    /* expose		     */	NULL,
-    /* set_values	     */	SetValues,
-    /* set_values_hook       */	NULL,			
-    /* set_values_almost     */	XtInheritSetValuesAlmost,  
-    /* get_values_hook       */	NULL,			
-    /* accept_focus	     */	NULL,
-    /* version		     */	XtVersion,
-    /* callback offsets      */	NULL,
-    /* tm_table              */	NULL,
-    /* query_geometry	     */	QueryGeometry,
-    /* display_accelerator   */	NULL,
-    /* extension	     */	NULL,
-  },
-   /* Composite class part */
-  {
-    /* geometry_manager	     */	GeometryManager,
-    /* change_managed	     */	NULL,
-    /* insert_child	     */	XtInheritInsertChild,
-    /* delete_child	     */	XtInheritDeleteChild,
-    /* extension	     */	NULL,
-  },
-   /* Constraint class part */
-  {
-    /* resources	     */ NULL,
-    /* num_resources	     */ 0,
-    /* constraint_size	     */ 0,
-    /* initialize	     */ NULL,
-    /* destroy		     */ NULL,
-    /* set_values	     */ NULL,
-    /* extension	     */ NULL,
-  },
-   /* Manager class part */
-  {
-    /* translations	     */ XtInheritTranslations,
-    /* syn_resources	     */ NULL,
-    /* num_syn_resources     */ 0,
-    /* syn_constraint_resources */ NULL,
-    /* num_syn_constraint_resources */ 0,
-    /* parent_process	     */ XmInheritParentProcess,
-    /* extension	     */ NULL,
-  },
-   /* DPSScrolledWindow class part */
-  {
-    /* set_scale	     */ SetScale,
-    /* scroll_point	     */ ScrollPoint,
-    /* scroll_by	     */ ScrollBy,
-    /* scroll_to	     */ ScrollTo,
-    /* set_scale_and_scroll  */ SetScaleAndScroll,
-    /* convert_x_to_ps	     */ ConvertXToPS,
-    /* convert_ps_to_x	     */ ConvertPSToX,
-    /* add_to_dirty_area     */ AddToDirtyArea,
-    /* take_feedback_pixmap  */ TakeFeedbackPixmap,
-    /* give_feedback_pixmap  */ GiveFeedbackPixmap,
-    /* start_feedback_drawing */ StartFeedbackDrawing,
-    /* end_feedback_drawing  */ EndFeedbackDrawing,
-    /* set_feedback_dirty_area */ SetFeedbackDirtyArea,
-    /* finish_pending_drawing */ FinishPendingDrawing,
-    /* abort_pending_drawing */ AbortPendingDrawing,
-    /* get_drawing_info	     */ GetDrawingInfo,
-    /* update_drawing	     */ UpdateDrawing,
-    /* get_scroll_info	     */ GetScrollInfo,				
-    /* extension	     */	NULL,
-  }
-};
-
-WidgetClass dpsScrolledWindowWidgetClass =
-	(WidgetClass) &dpsScrolledWindowClassRec;
-
-/***** UTILITY FUNCTIONS *****/
-
-static void PrintRectList(float *r, short num_r)
-{
-    int i;
-
-    for (i = 0; i < num_r; i++) {
-	printf("Rectangle %d:  ", i);
-	printf("X %g Y %g W %g H %g\n", r[0], r[1], r[2], r[3]);
-	r += 4;
-    }
-}
-
-/* Make sure the list pointed to by r can hold n more rectangles.  Always
-   grow by at least min_grow */
-
-static void GrowRectList(
-    float **r,
-    short *r_size,
-    short num_r,
-    int n, int min_grow)
-{
-    if (*r_size < num_r + n) {
-	if (min_grow > 1 && num_r + n - *r_size < min_grow) {
-	    *r_size += min_grow;
-	} else *r_size = num_r + n;
-	*r = (float *) XtRealloc((char *) *r, *r_size * 4 * sizeof(float));
-    }
-}
-
-static void GrowIntRectList(
-    int **r,
-    short *r_size,
-    short num_r,
-    int n, int min_grow)
-{
-    if (*r_size < num_r + n) {
-	if (min_grow > 1 && num_r + n - *r_size < min_grow) {
-	    *r_size += min_grow;
-	} else *r_size = num_r + n;
-	*r = (int *) XtRealloc((char *) *r, *r_size * 4 * sizeof(int));
-    }
-}
-
-static Boolean Intersects(float *r1, float *r2)
-{
-    if (RIGHT(r1) <= LEFT(r2)) return False;
-    if (RIGHT(r2) <= LEFT(r1)) return False;
-    if (TOP(r1) <= BOTTOM(r2)) return False;
-    if (TOP(r2) <= BOTTOM(r1)) return False;
-
-    return True;
-}
-
-/* Subtract sub from src, putting result into dst.  Return rectangle count */
-
-static int Subtract(float *src, float *sub, float *dst)
-{
-    int n = 0;
-
-    /* If bottom of sub is greater than bottom of src, there's a
-       rectangle across the bottom */
-    if (BOTTOM(sub) > BOTTOM(src)) {
-	LEFT(dst) = LEFT(src);
-	BOTTOM(dst) = BOTTOM(src);
-	WIDTH(dst) = WIDTH(src);
-	HEIGHT(dst) = BOTTOM(sub) - BOTTOM(src);
-	n++;
-	dst += 4;
-    }
-
-    /* If left of sub is greater than left of src, there's a left rectangle. */
-    if (LEFT(sub) > LEFT(src)) {
-	LEFT(dst) = LEFT(src);
-	BOTTOM(dst) = MAX(BOTTOM(src), BOTTOM(sub));
-	WIDTH(dst) = LEFT(sub) - LEFT(src);
-	HEIGHT(dst) = MIN(TOP(src), TOP(sub)) - BOTTOM(dst);
-	n++;
-	dst += 4;
-    }
-    
-    /* If right of sub is less than right of src, there's a right rect */
-    if (RIGHT(sub) < RIGHT(src)) {
-	LEFT(dst) = RIGHT(sub);
-	BOTTOM(dst) = MAX(BOTTOM(src), BOTTOM(sub));
-	WIDTH(dst) = RIGHT(src) - RIGHT(sub);	
-	HEIGHT(dst) = MIN(TOP(src), TOP(sub)) - BOTTOM(dst);
-	n++;
-	dst += 4;
-    }
-
-    /* If top of sub is less than top of src, there's a top rectangle */
-    if (TOP(sub) < TOP(src)) {
-	LEFT(dst) = LEFT(src);
-	BOTTOM(dst) = TOP(sub);
-	WIDTH(dst) = WIDTH(src);
-	HEIGHT(dst) = TOP(src) - TOP(sub);
-	n++;
-	dst += 4;
-    }
-
-    return n;
-}
-
-static void Copy(float *src, float *dst)
-{
-    LEFT(dst) = LEFT(src);
-    BOTTOM(dst) = BOTTOM(src);
-    WIDTH(dst) = WIDTH(src);
-    HEIGHT(dst) = HEIGHT(src);
-}
-
-static void Intersection(float *r1, float *r2, float *dst)
-{
-    LEFT(dst) = MAX(LEFT(r1), LEFT(r2));
-    BOTTOM(dst) = MAX(BOTTOM(r1), BOTTOM(r2));
-    WIDTH(dst) = MIN(RIGHT(r1), RIGHT(r2)) - LEFT(dst);
-    HEIGHT(dst) = MIN(TOP(r1), TOP(r2)) - BOTTOM(dst);
-}
-
-/* These are used by the SubtractRects and IntersectRects procedures */
-
-static float *rbuf = NULL;
-static short rbuf_size = 0;
-#define GROW_BUF 10
-
-/* Replace the rectangle list in src with src minus sub */
-
-static void SubtractRects(
-    float **src,
-    short *src_size,
-    short *num_src,
-    float *sub,
-    int num_sub)
-{
-    short num_rbuf;
-    float *r;
-    int i;
-
-    /* Go through, subtracting the first sub rectangle from each src
-       rectangle.  Put the result in the internal buffer, then copy this
-       list to the src.  Repeat for each sub rectangle. */
-
-    while (num_sub > 0) {
-	num_rbuf = 0;
-	for (r = *src, i = 0; i < *num_src; r += 4, i++) {
-	    if (Intersects(r, sub)) {
-		/* Subtract sub from r, putting result into rbuf.  First
-		   make sure there are at least 4 spaces in the buffer */
-		GrowRectList(&rbuf, &rbuf_size, num_rbuf, 4, GROW_BUF);
-
-		/* Do the subtraction */
-		num_rbuf += Subtract(r, sub, rbuf + (num_rbuf*4));
-	    } else {
-		/* Copy r into buffer */
-		GrowRectList(&rbuf, &rbuf_size, num_rbuf, 1, GROW_BUF);
-		Copy(r, rbuf + (num_rbuf*4));
-		num_rbuf++;
-	    }
-	}
-
-	/* Copy buffered rectangles back into src */
-	GrowRectList(src, src_size, 0, num_rbuf, 1);
-	for (i = 0; i < num_rbuf * 4; i++) (*src)[i] = rbuf[i];
-	*num_src = num_rbuf;
-
-	/* Check if we've taken everything away */
-	if (*num_src == 0) return;
-
-	/* Skip on to the next sub rectangle */
-	num_sub--;
-	sub += 4;
-    }
-}
-
-/* Replace list r1 with the intersection of r1 and r2 */
-
-static void IntersectRects(
-    float **r1,
-    short *r1_size,
-    short *num_r1,
-    float *r2,
-    int num_r2)
-{
-    short num_rbuf = 0;
-    float *r;
-    int i;
-
-    /* Fairly straightforward.  Intersect each rectangle in r1 with each
-       rectangle in r2, then copy the results to r1 */
-
-    while (num_r2 > 0) {
-	for (r = *r1, i = 0; i < *num_r1; r += 4, i++) {
-	    if (Intersects(r, r2)) {
-		GrowRectList(&rbuf, &rbuf_size, num_rbuf, 1, GROW_BUF);
-		Intersection(r, r2, rbuf + (num_rbuf*4));
-		num_rbuf++;
-	    }
-	}
-	num_r2--;
-	r2 += 4;
-    }
-    
-    /* Copy intersection rectangles back into r1 */
-    GrowRectList(r1, r1_size, 0, num_rbuf, 1);
-    for (i = 0; i < num_rbuf * 4; i++) (*r1)[i] = rbuf[i];
-    *num_r1 = num_rbuf;
-}
-
-static void SimplifyRects(float *rect, short *num)
-{
-    int i, j, k;
-    float *r, *r1;
-
-    i = 0;
-    while (i < *num) {
-	r = rect + (i * 4);
-	if (WIDTH(r) == 0 || HEIGHT(r) == 0) {
-	    for (k = 4*(i+1); k < *num * 4; k++) rect[k-4] = rect[k];
-	    (*num)--;
-	    goto LOOPEND;
-	}
-	j = i+1;
-	while (j < *num) {
-	    r1 = rect + (j * 4);
-	    if (TOP(r1) <= TOP(r) && BOTTOM(r1) >= BOTTOM(r) &&
-		LEFT(r1) >= LEFT(r) && RIGHT(r1) <= RIGHT(r)) {
-		for (k = 4*(j+1); k < *num * 4; k++) rect[k-4] = rect[k];
-		(*num)--;
-	    } else if (TOP(r) <= TOP(r1) && BOTTOM(r) >= BOTTOM(r1) &&
-		       LEFT(r) >= LEFT(r1) && RIGHT(r) <= RIGHT(r1)) {
-		for (k = 4*(i+1); k < *num * 4; k++) rect[k-4] = rect[k];
-		(*num)--;
-		goto LOOPEND;
-	    } else j++;
-	}
-	i++;
-LOOPEND:;
-    }
-}
-
-static void ComputeOffsets(DPSScrolledWindowWidget dsw, int *dx, int *dy)
-{
-    if (dsw->sw.doing_feedback && dsw->sw.feedback_pixmap != None) {
-	*dx = *dy = 0;
-    } else {
-	if (dsw->sw.pixmap_width == dsw->sw.drawing_area->core.width) *dx = 0;
-	else *dx = -dsw->sw.origin_x;
-	if (dsw->sw.pixmap_height == dsw->sw.drawing_area->core.height) *dy = 0;
-	else *dy = CEIL(dsw->sw.drawing_height) - dsw->sw.origin_y;
-    }
-}
-
-static void ClassPartInitialize(WidgetClass widget_class)
-{
-    register DPSScrolledWindowWidgetClass wc =
-	    (DPSScrolledWindowWidgetClass) widget_class;
-    DPSScrolledWindowWidgetClass super =
-	    (DPSScrolledWindowWidgetClass) wc->core_class.superclass;
-
-    if (wc->sw_class.set_scale == InheritSetScale) {
-	wc->sw_class.set_scale = super->sw_class.set_scale;
-    }
-    if (wc->sw_class.scroll_point == InheritScrollPoint) {
-	wc->sw_class.scroll_point = super->sw_class.scroll_point;
-    }
-    if (wc->sw_class.scroll_by == InheritScrollBy) {
-	wc->sw_class.scroll_by = super->sw_class.scroll_by;
-    }
-    if (wc->sw_class.scroll_to == InheritScrollTo) {
-	wc->sw_class.scroll_to = super->sw_class.scroll_to;
-    }
-    if (wc->sw_class.set_scale_and_scroll == InheritSetScaleAndScroll) {
-	wc->sw_class.set_scale_and_scroll =
-		super->sw_class.set_scale_and_scroll;
-    }
-    if (wc->sw_class.convert_x_to_ps == InheritConvertXToPS) {
-	wc->sw_class.convert_x_to_ps = super->sw_class.convert_x_to_ps;
-    }
-    if (wc->sw_class.convert_ps_to_x == InheritConvertPSToX) {
-	wc->sw_class.convert_ps_to_x = super->sw_class.convert_ps_to_x;
-    }
-    if (wc->sw_class.add_to_dirty_area == InheritAddToDirtyArea) {
-	wc->sw_class.add_to_dirty_area = super->sw_class.add_to_dirty_area;
-    }
-    if (wc->sw_class.take_feedback_pixmap == InheritTakeFeedbackPixmap) {
-	wc->sw_class.take_feedback_pixmap =
-		super->sw_class.take_feedback_pixmap;
-    }
-    if (wc->sw_class.give_feedback_pixmap == InheritGiveFeedbackPixmap) {
-	wc->sw_class.give_feedback_pixmap =
-		super->sw_class.give_feedback_pixmap;
-    }
-    if (wc->sw_class.start_feedback_drawing == InheritStartFeedbackDrawing) {
-	wc->sw_class.start_feedback_drawing =
-		super->sw_class.start_feedback_drawing;
-    }
-    if (wc->sw_class.end_feedback_drawing == InheritEndFeedbackDrawing) {
-	wc->sw_class.end_feedback_drawing =
-		super->sw_class.end_feedback_drawing;
-    }
-    if (wc->sw_class.set_feedback_dirty_area == InheritSetFeedbackDirtyArea) {
-	wc->sw_class.set_feedback_dirty_area =
-		super->sw_class.set_feedback_dirty_area;
-    }
-    if (wc->sw_class.finish_pending_drawing == InheritFinishPendingDrawing) {
-	wc->sw_class.finish_pending_drawing =
-		super->sw_class.finish_pending_drawing;
-    }
-    if (wc->sw_class.abort_pending_drawing == InheritAbortPendingDrawing) {
-	wc->sw_class.abort_pending_drawing =
-		super->sw_class.abort_pending_drawing;
-    }
-    if (wc->sw_class.get_drawing_info == InheritGetDrawingInfo) {
-	wc->sw_class.get_drawing_info = super->sw_class.get_drawing_info;
-    }
-    if (wc->sw_class.update_drawing == InheritUpdateDrawing) {
-	wc->sw_class.update_drawing = super->sw_class.update_drawing;
-    }
-    if (wc->sw_class.get_scroll_info == InheritGetScrollInfo) {
-	wc->sw_class.get_scroll_info = super->sw_class.get_scroll_info;
-    }
-}
-
-static void CreateChildren(DPSScrolledWindowWidget dsw)
-{
-    Widget w;
-
-    w = dsw->sw.scrolled_window =
-	    XtVaCreateManagedWidget("scrolledWindow",
-				    xmScrolledWindowWidgetClass,
-				    (Widget) dsw,
-				    XtNwidth, dsw->core.width,
-				    XtNheight, dsw->core.height,
-				    XmNscrollingPolicy, XmAPPLICATION_DEFINED,
-				    NULL);
-
-    dsw->sw.h_scroll =
-	    XtVaCreateManagedWidget("horizontalScrollBar",
-				    xmScrollBarWidgetClass, w,
-				    XmNorientation, XmHORIZONTAL,
-				    NULL);
-    XtAddCallback(dsw->sw.h_scroll, XmNvalueChangedCallback, HScrollCallback,
-		  (XtPointer) dsw);
-    XtAddCallback(dsw->sw.h_scroll, XmNdragCallback, HScrollCallback,
-		  (XtPointer) dsw);
-
-    dsw->sw.v_scroll =
-	    XtVaCreateManagedWidget("verticalScrollBar",
-				    xmScrollBarWidgetClass, w,
-				    XmNorientation, XmVERTICAL,
-				    NULL);
-    XtAddCallback(dsw->sw.v_scroll, XmNvalueChangedCallback, VScrollCallback,
-		  (XtPointer) dsw);
-    XtAddCallback(dsw->sw.v_scroll, XmNdragCallback, VScrollCallback,
-		  (XtPointer) dsw);
-
-
-    dsw->sw.drawing_area =
-	    XtVaCreateManagedWidget("drawingArea",
-				    xmDrawingAreaWidgetClass, w, NULL);
-    XtAddCallback(dsw->sw.drawing_area, XtNexposeCallback, DrawingAreaExpose,
-		  (XtPointer) dsw);
-    XtAddRawEventHandler(dsw->sw.drawing_area, 0, True,
-			 DrawingAreaGraphicsExpose, (XtPointer) dsw);
-
-    XmScrolledWindowSetAreas(w, dsw->sw.h_scroll, dsw->sw.v_scroll,
-			     dsw->sw.drawing_area);
-}
-
-/* ARGSUSED */
-
-static void Initialize(Widget request, Widget new, ArgList args, Cardinal *num_args)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) new;
-    XGCValues gcVal;
-    Bool inited;
-
-    if (dsw->sw.area_width <= 0) dsw->sw.area_width = 8.5*72;
-    if (dsw->sw.area_height <= 0) dsw->sw.area_height = 11*72;
-    if (dsw->sw.scale <= 0) dsw->sw.scale = 1.0;
-    dsw->sw.ctm_ptr = dsw->sw.ctm;
-    dsw->sw.inv_ctm_ptr = dsw->sw.inv_ctm;
-    dsw->sw.backing_pixmap = None;
-    dsw->sw.feedback_pixmap = None;
-    dsw->sw.window_gstate = 0;
-    dsw->sw.backing_gstate = 0;
-    dsw->sw.feedback_gstate = 0;
-    dsw->sw.scrolling = False;
-    dsw->sw.num_pending_expose = dsw->sw.pending_expose_size = 0;
-    dsw->sw.pending_expose = NULL;
-    dsw->sw.num_pending_dirty = dsw->sw.pending_dirty_size = 0;
-    dsw->sw.pending_dirty = NULL;
-    dsw->sw.num_current_drawing = dsw->sw.current_drawing_size = 0;
-    dsw->sw.current_drawing = NULL;
-    dsw->sw.num_prev_dirty_areas = dsw->sw.prev_dirty_areas_size = 0;
-    dsw->sw.prev_dirty_areas = NULL;
-    dsw->sw.drawing_stage = DSWStart;
-    dsw->sw.work = 0;
-    dsw->sw.big_pixmap = False;
-
-    /* Set the initial dirty area to everything */
-
-    dsw->sw.dirty_areas_size = 0;
-    dsw->sw.dirty_areas = NULL;
-
-    GrowRectList(&dsw->sw.dirty_areas, &dsw->sw.dirty_areas_size, 0, 1, 1);
-    dsw->sw.num_dirty_areas = 1;
-    LEFT(dsw->sw.dirty_areas) = 0.0;
-    BOTTOM(dsw->sw.dirty_areas) = 0.0;
-    WIDTH(dsw->sw.dirty_areas) = dsw->sw.area_width;
-    HEIGHT(dsw->sw.dirty_areas) = dsw->sw.area_height;
-
-    /* Make the scratch list have at least one element */
-
-    dsw->sw.num_scratch = dsw->sw.scratch_size = 0;
-    dsw->sw.scratch = NULL;
-    GrowRectList(&dsw->sw.scratch, &dsw->sw.scratch_size, 0, 1, 1);
-
-    /* Get the context */
-
-    if (dsw->sw.context == NULL) {
-	dsw->sw.context = XDPSGetSharedContext(XtDisplay(dsw));
-    }
-
-    /* Watch progress only works with pass-through event dispatching */
-
-    if (dsw->sw.watch_progress &&
-	XDPSSetEventDelivery(XtDisplay(dsw), dps_event_query) !=
-		dps_event_pass_through) dsw->sw.watch_progress = False;
-
-    if (_XDPSTestComponentInitialized(dsw->sw.context,
-				      dps_init_bit_dsw, &inited) ==
-	dps_status_unregistered_context) {
-	XDPSRegisterContext(dsw->sw.context, False);
-    }
-
-    dsw->sw.use_saved_scroll = False;
-    dsw->sw.context_inited = False;
-    dsw->sw.doing_feedback = False;
-    dsw->sw.feedback_displayed = False;
-
-    CreateChildren(dsw);
-
-    dsw->sw.ge_gc = XtGetGC(dsw->sw.drawing_area, 0, (XGCValues *) NULL);
-
-    gcVal.graphics_exposures = False;
-    dsw->sw.no_ge_gc = XtGetGC(dsw->sw.drawing_area, GCGraphicsExposures,
-			       &gcVal);
-}
-
-static void Destroy(Widget widget)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) widget;
-
-    if (dsw->sw.backing_pixmap != None) {
-	XFreePixmap(XtDisplay(dsw), dsw->sw.backing_pixmap);
-    }
-    if (dsw->sw.feedback_pixmap != None) {
-	XFreePixmap(XtDisplay(dsw), dsw->sw.feedback_pixmap);
-    }
-
-    if (dsw->sw.window_gstate != 0) {
-	XDPSFreeContextGState(dsw->sw.context, dsw->sw.window_gstate);
-    }
-    if (dsw->sw.backing_gstate != 0) {
-	XDPSFreeContextGState(dsw->sw.context, dsw->sw.backing_gstate);
-    }
-    if (dsw->sw.feedback_gstate != 0) {
-	XDPSFreeContextGState(dsw->sw.context, dsw->sw.feedback_gstate);
-    }
-
-    if (dsw->sw.pending_expose != NULL) {
-	XtFree((char *) dsw->sw.pending_expose);
-    }
-    if (dsw->sw.current_drawing != NULL) {
-	XtFree((char *) dsw->sw.current_drawing);
-    }
-    if (dsw->sw.prev_dirty_areas != NULL) {
-	XtFree((char *) dsw->sw.prev_dirty_areas);
-    }
-    if (dsw->sw.dirty_areas != NULL) XtFree((char *) dsw->sw.dirty_areas);
-    if (dsw->sw.pending_dirty != NULL) XtFree((char *) dsw->sw.pending_dirty);
-    if (dsw->sw.scratch != NULL) XtFree((char *) dsw->sw.scratch);
-
-    XtReleaseGC(widget, dsw->sw.ge_gc);
-    XtReleaseGC(widget, dsw->sw.no_ge_gc);
-}
-
-static void SetOriginAndGetTransform(DPSScrolledWindowWidget dsw)
-{
-    float psX, psY;
-
-    ConvertToOrigPS(dsw, dsw->sw.origin_x, dsw->sw.origin_y, &psX, &psY);
-    _DPSSWSetMatrixAndGetTransform(dsw->sw.context, psX, psY, dsw->sw.scale,
-				   dsw->sw.origin_x, dsw->sw.origin_y,
-				   dsw->sw.ctm, dsw->sw.inv_ctm,
-				   &dsw->sw.x_offset, &dsw->sw.y_offset);
-}
-
-static void SetPixmapOrigin(DPSScrolledWindowWidget dsw)
-{
-    float psX, psY;
-
-    ConvertToOrigPS(dsw, dsw->sw.origin_x, dsw->sw.origin_y, &psX, &psY);
-    _DPSSWSetMatrix(dsw->sw.context, psX, psY, dsw->sw.scale,
-		    dsw->sw.origin_x, dsw->sw.origin_y);
-}
-
-static void SetPixmapOffset(DPSScrolledWindowWidget dsw)
-{
-    int ox, oy;
-
-    if (dsw->sw.pixmap_width <= (int) dsw->sw.drawing_area->core.width) ox = 0;
-    else ox = -dsw->sw.origin_x;
-    if (dsw->sw.pixmap_height <= (int) dsw->sw.drawing_area->core.height) {
-	oy = dsw->sw.drawing_area->core.height;
-    } else oy = dsw->sw.pixmap_height - dsw->sw.origin_y +
-	    dsw->sw.drawing_area->core.height;
-    
-    DPSsetXoffset(dsw->sw.context, ox, oy);
-}
-
-static Boolean pixmapError;
-static int (*oldHandler)(Display *, XErrorEvent *);
-
-static int PixmapHandler(Display *dpy, XErrorEvent *error)
-{
-    if (error->error_code == BadAlloc &&
-        error->request_code == X_CreatePixmap) {
-        pixmapError = True;
-        return 0;
-    } else return (*oldHandler) (dpy, error);
-}
-
-static Pixmap AllocPixmap(DPSScrolledWindowWidget dsw, unsigned w, unsigned h)
-{
-    Pixmap p;
-    unsigned int dBytes;
-    Widget wid = dsw->sw.drawing_area;
-    unsigned area = (w * h);
-
-    if (dsw->sw.pixmap_limit > 0) {
-	if (area > (unsigned)dsw->sw.pixmap_limit) return None;
-    } else if (dsw->sw.pixmap_limit < 0
-       && area > (unsigned)(dsw->sw.unscaled_width * dsw->sw.unscaled_height)
-       && area > (unsigned)(wid->core.width * wid->core.height)) return None;
-
-    if (dsw->sw.absolute_pixmap_limit > 0) {
-	dBytes = (wid->core.depth + 7) / 8;	/* Convert into bytes */
-	if (area * dBytes > (unsigned)dsw->sw.absolute_pixmap_limit * 1024) {
-	    return None;
-	}
-    }
-
-    XSync(XtDisplay(dsw), False);
-    oldHandler = XSetErrorHandler(PixmapHandler);
-    pixmapError = False;
-    p = XCreatePixmap(XtDisplay(dsw), XtWindow(dsw->sw.drawing_area), w, h,
-		      wid->core.depth);
-    XSync(XtDisplay(dsw), False);
-    (void) XSetErrorHandler(oldHandler);
-    if (pixmapError) return None;
-    else return p;
-}
-
-static void CreateBackingPixmap(DPSScrolledWindowWidget dsw)
-{
-    Pixmap p;
-
-    if (dsw->sw.document_size_pixmaps) {
-	dsw->sw.pixmap_width =
-		MAX(CEIL(dsw->sw.drawing_width),
-		    (int) dsw->sw.drawing_area->core.width);
-	dsw->sw.pixmap_height =
-		MAX(CEIL(dsw->sw.drawing_height),
-		    (int) dsw->sw.drawing_area->core.height);
-
-	p = dsw->sw.backing_pixmap =
-		AllocPixmap(dsw, dsw->sw.pixmap_width, dsw->sw.pixmap_height);
-	if (p != None) {
-	    dsw->sw.big_pixmap =
-		    dsw->sw.pixmap_width >
-			    (int) dsw->sw.drawing_area->core.width ||
-		    dsw->sw.pixmap_height >
-			    (int) dsw->sw.drawing_area->core.height;
-	    return;
-	}
-    }
-    dsw->sw.big_pixmap = False;
-    dsw->sw.pixmap_width = dsw->sw.drawing_area->core.width;
-    dsw->sw.pixmap_height = dsw->sw.drawing_area->core.height;
-    p = dsw->sw.backing_pixmap =
-	    AllocPixmap(dsw, dsw->sw.pixmap_width, dsw->sw.pixmap_height);
-    if (p == None) dsw->sw.pixmap_width = dsw->sw.pixmap_height = 0;
-}
-
-static void FreeBackingPixmap(DPSScrolledWindowWidget dsw)
-{
-    if (dsw->sw.backing_pixmap == None) return;
-    XFreePixmap(XtDisplay(dsw), dsw->sw.backing_pixmap);
-    dsw->sw.backing_pixmap = None;
-    dsw->sw.big_pixmap = False;
-    dsw->sw.pixmap_width = dsw->sw.pixmap_height = 0;
-    XDPSFreeContextGState(dsw->sw.context, dsw->sw.backing_gstate);
-}    
-
-static void SetDrawingAreaPosition(
-    DPSScrolledWindowWidget dsw,
-    float ix,
-    float iy,
-    int vx,
-    int vy,
-    Boolean setOrigin)
-{
-    int xoff, yoff;
-    int hSize, vSize;
-    float scrollX, scrollY;
-
-    /* Convert ix, iy into X units */
-
-    ix *= dsw->sw.drawing_width / dsw->sw.area_width;
-    iy *= dsw->sw.drawing_height / dsw->sw.area_height;
-
-    if ((int)dsw->sw.drawing_area->core.width >= CEIL(dsw->sw.drawing_width)) {
-	/* The scaled width is narrower than the view window, so
-	   center the picture and set scroll bar to be unscrollable */
-
-	xoff = ((int) dsw->sw.drawing_area->core.width -
-		CEIL(dsw->sw.drawing_width))
-		/ 2.0;
-	scrollX = 0;
-	hSize = CEIL(dsw->sw.drawing_width);
-    } else {
-	/* The scaled width is larger than the view window, so
-	   turn on the scroll bar, and set up its maximum and
-	   slider size.  Do this by converting the image offset into X
-	   coordinates and subtracting the view offset */
-
-	scrollX = ix - vx;
-	scrollX = MAX(scrollX, 0);
-	scrollX = MIN(scrollX, CEIL(dsw->sw.drawing_width) -
-		               (int) dsw->sw.drawing_area->core.width);
-	hSize = dsw->sw.drawing_area->core.width;
-	xoff = -(int) (scrollX + 0.5);
-    }
-
-    /* Now do the same thing for the height.  We want to compute the offset
-       relative to the lower left corner, but X coordinates are relative
-       to the upper left, so the drawing height must be added in.  Also, since
-       the coordinates go in the other direction, the view offset must be
-       added, not subtracted. */
-
-    if ((int) dsw->sw.drawing_area->core.height >=
-	CEIL(dsw->sw.drawing_height)) {
-	yoff = ((int) dsw->sw.drawing_area->core.height -
-		CEIL(dsw->sw.drawing_height)) / 2.0;
-	scrollY = CEIL(dsw->sw.drawing_height) -
-		(int) dsw->sw.drawing_area->core.height;
-	vSize = CEIL(dsw->sw.drawing_height);
-    } else {
-	scrollY = iy + vy - (int) dsw->sw.drawing_area->core.height;
-	scrollY = MAX(scrollY, 0);
-	scrollY = MIN(scrollY, CEIL(dsw->sw.drawing_height) -
-		               (int) dsw->sw.drawing_area->core.height);
-	vSize = dsw->sw.drawing_area->core.height;
-	yoff = -(int) (scrollY + 0.5);
-    }
-
-    /* Update the scrollbars */
-    dsw->sw.scroll_x = (int) (scrollX + 0.5); 
-    dsw->sw.scroll_y = (int) (CEIL(dsw->sw.drawing_height) -
-			      (int) dsw->sw.drawing_area->core.height -
-			      scrollY + 0.5);
-
-    yoff = dsw->sw.drawing_area->core.height - yoff;
-
-    dsw->sw.scroll_h_value = dsw->sw.scroll_x;
-    dsw->sw.scroll_h_size = hSize;
-    dsw->sw.scroll_h_max = CEIL(dsw->sw.drawing_width);
-    dsw->sw.scroll_v_value = dsw->sw.scroll_y;
-    dsw->sw.scroll_v_size = vSize;
-    dsw->sw.scroll_v_max = CEIL(dsw->sw.drawing_height);
-
-    if (!dsw->sw.application_scrolling) {
-	XtVaSetValues(dsw->sw.h_scroll, XmNmaximum, dsw->sw.scroll_h_max,
-		      XmNvalue, dsw->sw.scroll_x, XmNsliderSize, hSize, NULL);
-	XtVaSetValues(dsw->sw.v_scroll, XmNmaximum, dsw->sw.scroll_v_max,
-		      XmNvalue, dsw->sw.scroll_y, XmNsliderSize, vSize, NULL);
-    }
-    
-    if (setOrigin) {
-	/* Set the origin in the X window to reflect the new location */
-	dsw->sw.origin_x = xoff;
-	dsw->sw.origin_y = yoff;
-    }
-}
-
-static void DrawBackground(
-    DPSScrolledWindowWidget dsw,
-    DSWDrawableType which)
-{
-    DSWExposeCallbackRec e;
-
-    e.type = which;
-    e.directions = DSWFinish;
-    e.results = DSWUndefined;
-    e.first = True;
-    e.background = True;
-    if (which == DSWBackingPixmap) {
-	e.drawable = dsw->sw.backing_pixmap;
-	e.gstate = dsw->sw.backing_gstate;
-    } else if (which == DSWFeedbackPixmap) {
-	e.drawable = dsw->sw.feedback_pixmap;
-	e.gstate = dsw->sw.feedback_gstate;
-    } else {
-	e.drawable = XtWindow(dsw->sw.drawing_area);
-	e.gstate = dsw->sw.window_gstate;
-    }
-    e.context = dsw->sw.context;
-
-    SimplifyRects(dsw->sw.current_drawing, &dsw->sw.num_current_drawing);
-
-    XDPSSetContextGState(dsw->sw.context, e.gstate);
-    _DPSSWSetRectViewClip(dsw->sw.context, dsw->sw.current_drawing,
-				  dsw->sw.num_current_drawing * 4);
-    
-    e.rects = dsw->sw.current_drawing;
-    e.rect_count = dsw->sw.num_current_drawing;
-
-    do {
-	XtCallCallbackList((Widget) dsw, dsw->sw.background_callback,
-			   (XtPointer) &e);
-	if (e.results == DSWUndefined) {
-	    if (XtHasCallbacks((Widget) dsw, XtNbackgroundCallback) !=
-		XtCallbackHasNone) {
-		XtAppWarningMsg(XtWidgetToApplicationContext((Widget) dsw),
-				"returnError", "backgroundCallback",
-				"DPSScrollError",
-				"Background callback did not set result field",
-				(String *) NULL, (Cardinal *) NULL);
-	    }
-	    e.results = DSWFinished;
-	}
-    } while (e.results != DSWFinished);
-
-
-    DPSinitviewclip(dsw->sw.context);
-}
-
-static void ClipToDrawingSize(
-    DPSScrolledWindowWidget dsw,
-    DSWDrawableType which)
-{
-    int i;
-    float r[4];
-
-    if (CEIL(dsw->sw.drawing_width) >= (int) dsw->sw.drawing_area->core.width &&
-	CEIL(dsw->sw.drawing_height) >= (int) dsw->sw.drawing_area->core.height) return;
-
-    /* Copy current drawing area to scratch */
-
-    GrowRectList(&dsw->sw.scratch, &dsw->sw.scratch_size, 0,
-		 dsw->sw.num_current_drawing, 1);
-    dsw->sw.num_scratch = dsw->sw.num_current_drawing;
-    for (i = 0; i < dsw->sw.num_current_drawing * 4; i++) {
-	dsw->sw.scratch[i] = dsw->sw.current_drawing[i];
-    }
-
-    /* Construct a rectangle of the drawing area */
-
-    ConvertToPS(dsw, dsw->sw.origin_x + DELTA, dsw->sw.origin_y - DELTA,
-		r, r+1);
-    ConvertToPS(dsw, dsw->sw.origin_x + CEIL(dsw->sw.drawing_width) - DELTA,
-		dsw->sw.origin_y - CEIL(dsw->sw.drawing_height) + DELTA,
-		r+2, r+3);
-    r[2] -= r[0];
-    r[3] -= r[1];
-
-    /* Subtract the area of the drawing from the current drawing list */
-
-    SubtractRects(&dsw->sw.current_drawing, &dsw->sw.current_drawing_size,
-		  &dsw->sw.num_current_drawing, r, 1);
-
-    if (dsw->sw.num_current_drawing != 0) {
-	DrawBackground(dsw, which);
-	/* Now intersect the rectangle with the current drawing area */
-	IntersectRects(&dsw->sw.scratch, &dsw->sw.scratch_size,
-		  &dsw->sw.num_scratch, r, 1);
-	/* If nothing left, we won't be drawing anything more, so
-	   synchronize.  Otherwise wait until we're done drawing */
-	if (dsw->sw.num_scratch == 0) DPSWaitContext(dsw->sw.context);
-    }
-
-    /* Copy scratch back into the current drawing list */
-    GrowRectList(&dsw->sw.current_drawing, &dsw->sw.current_drawing_size, 0,
-		 dsw->sw.num_scratch, 1);
-    dsw->sw.num_current_drawing = dsw->sw.num_scratch;
-    for (i = 0; i < dsw->sw.num_scratch * 4; i++) {
-	dsw->sw.current_drawing[i] = dsw->sw.scratch[i];
-    }
-}    
-
-static DSWResults ClipAndDraw(
-    DPSScrolledWindowWidget dsw,
-    DSWDrawableType which,
-    DSWDirections howMuch,
-    Boolean first)
-{
-    DSWExposeCallbackRec e;
-
-    e.type = which;
-    e.directions = howMuch;
-    e.results = DSWUndefined;
-    e.first = first;
-    e.background = False;
-    if (which == DSWBackingPixmap) {
-	e.drawable = dsw->sw.backing_pixmap;
-	e.gstate = dsw->sw.backing_gstate;
-    } else if (which == DSWFeedbackPixmap) {
-	e.drawable = dsw->sw.feedback_pixmap;
-	e.gstate = dsw->sw.feedback_gstate;
-    } else {
-	e.drawable = XtWindow(dsw->sw.drawing_area);
-	e.gstate = dsw->sw.window_gstate;
-    }
-    e.context = dsw->sw.context;
-
-    if (first) {
-	XDPSSetContextGState(dsw->sw.context, e.gstate);
-	if (howMuch != DSWAbort) {
-	    ClipToDrawingSize(dsw, which);
-	    SimplifyRects(dsw->sw.current_drawing,
-			  &dsw->sw.num_current_drawing);
-	    if (dsw->sw.num_current_drawing == 0) return DSWFinished;
-	    _DPSSWSetRectViewClip(dsw->sw.context, dsw->sw.current_drawing,
-				  dsw->sw.num_current_drawing * 4);
-	}
-    }
-    
-    e.rects = dsw->sw.current_drawing;
-    e.rect_count = dsw->sw.num_current_drawing;
-
-    do {
-	XtCallCallbackList((Widget) dsw, dsw->sw.expose_callback,
-			   (XtPointer) &e);
-	if (e.results == DSWUndefined) {
-	    if (XtHasCallbacks((Widget) dsw,
-			       XtNexposeCallback) != XtCallbackHasNone) {
-		XtAppWarningMsg(XtWidgetToApplicationContext((Widget) dsw),
-				"returnError", "exposeCallback",
-				"DPSScrollError",
-				"Expose callback did not set result field",
-				(String *) NULL, (Cardinal *) NULL);
-	    }
-	    e.results = DSWFinished;
-	}
-    } while ((e.results != DSWFinished && howMuch == DSWFinish) ||
-	     (e.results != DSWFinished && e.results != DSWAborted &&
-	      howMuch == DSWAbortOrFinish) ||
-	     (e.results != DSWAborted && howMuch == DSWAbort));
-
-    if (e.results == DSWFinished) {
-	DPSinitviewclip(dsw->sw.context);
-	DPSWaitContext(dsw->sw.context);
-    }
-    return e.results;
-}
-
-static void SplitExposeEvent(
-    DPSScrolledWindowWidget dsw,
-    XExposeEvent *ev)
-{
-    float *r;
-    float llx, lly, urx, ury;
-    int xr[4];
-    int i;
-    int dx, dy;
-
-    ComputeOffsets(dsw, &dx, &dy);
-
-    /* Put the expose event into the scratch list */
-    dsw->sw.num_scratch = 1;
-    r = dsw->sw.scratch;
-    ConvertToPS(dsw, ev->x + DELTA, ev->y + ev->height - DELTA, &llx, &lly);
-    ConvertToPS(dsw, ev->x + ev->width - DELTA, ev->y + DELTA, &urx, &ury);
-    LEFT(r) = llx;
-    BOTTOM(r) = lly;
-    WIDTH(r) = urx - llx;
-    HEIGHT(r) = ury - lly;
-
-    /* Subtract the dirty area from the exposed area and copy the resulting
-       area to the window */
-    SubtractRects(&dsw->sw.scratch, &dsw->sw.scratch_size,
-		  &dsw->sw.num_scratch,
-		  dsw->sw.dirty_areas, dsw->sw.num_dirty_areas);
-    for (i = 0; i < dsw->sw.num_scratch; i++) {
-	r = dsw->sw.scratch + 4*i;
-	ConvertToX(dsw, LEFT(r), TOP(r), xr, xr+1);
-	ConvertToX(dsw, RIGHT(r), BOTTOM(r), xr+2, xr+3);
-	xr[2] -= xr[0];
-	xr[3] -= xr[1];
-	XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-		  XtWindow(dsw->sw.drawing_area), dsw->sw.no_ge_gc,
-		  xr[0] + dx, xr[1] + dy, xr[2], xr[3], xr[0], xr[1]);
-    }
-
-    /* Now do it again, but intersect the exposed area with the dirty area
-       and add the intersection to the pending list */
-
-    dsw->sw.num_scratch = 1;
-    r = dsw->sw.scratch;
-    LEFT(r) = llx;
-    BOTTOM(r) = lly;
-    WIDTH(r) = urx - llx;
-    HEIGHT(r) = ury - lly;
-    IntersectRects(&dsw->sw.scratch, &dsw->sw.scratch_size,
-		   &dsw->sw.num_scratch,
-		   dsw->sw.dirty_areas, dsw->sw.num_dirty_areas);
-    AddUserSpaceRectsToPending(dsw, dsw->sw.scratch, dsw->sw.num_scratch);
-}
-
-/* ARGSUSED */
-
-static Bool CheckWatchProgressEvent(
-    Display *dpy,
-    XEvent *e,
-    char *arg)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) arg;
-    
-    return (e->xany.window == dsw->sw.backing_pixmap &&
-	    (e->type == GraphicsExpose || e->type == NoExpose)) ||
-	   (e->xany.window == XtWindow(dsw->sw.drawing_area) &&
-	    e->type == Expose);
-}
-
-static void CopyWindowToBackingPixmap(
-    DPSScrolledWindowWidget dsw)
-{
-    int llx, lly, urx, ury;
-    XEvent e;
-    XExposeEvent *ev = (XExposeEvent *) &e;
-    int i;
-    float *r;
-    int copies = 0;
-    int dx, dy;
-
-    ComputeOffsets(dsw, &dx, &dy);
-
-    for (i = 0; i < dsw->sw.num_dirty_areas; i++) {
-	r = dsw->sw.dirty_areas + i*4;
-	ConvertToX(dsw, LEFT(r), BOTTOM(r), &llx, &lly);
-	ConvertToX(dsw, RIGHT(r), TOP(r), &urx, &ury);
-	XCopyArea(XtDisplay(dsw), XtWindow(dsw->sw.drawing_area),
-		  dsw->sw.backing_pixmap, dsw->sw.ge_gc,
-		  llx, ury, urx-llx, lly-ury, llx + dx, ury + dy);
-	copies++;
-    }
-
-    /* Unfortunately the Intrinsics won't let us get ahold of the the
-       GraphicsExpose events for the pixmap, so we have to wait and
-       get them the old fashioned way.  Yuck. */
-
-    while (copies > 0) {
-	XIfEvent(XtDisplay(dsw), &e, CheckWatchProgressEvent,
-		 (char *) dsw);
-	if (e.type == Expose) {
-	    SplitExposeEvent(dsw, ev);
-	    continue;
-	} else if (e.type == GraphicsExpose) {
-	    ev->x -= dx;
-	    ev->y -= dy;
-	    AddExposureToPending(dsw, ev);
-	    if (ev->count == 0) copies--;
-	} else copies--;		    /* NoExpose */
-    }
-    CopyRectsToCurrentDrawing(dsw, dsw->sw.pending_dirty,
-			     dsw->sw.num_pending_dirty);
-
-    dsw->sw.num_pending_dirty = 0;
-    dsw->sw.num_pending_expose = 0;
-    if (dsw->sw.num_current_drawing == 0) {
-	dsw->sw.drawing_stage = DSWDone;
-	dsw->sw.num_dirty_areas = 0;
-    } else {
-	/* The dirty area is now the intersection of the old dirty area and
-	   the newly-created current drawing list */
-	IntersectRects(&dsw->sw.dirty_areas, &dsw->sw.dirty_areas_size,
-		       &dsw->sw.num_dirty_areas,
-		       dsw->sw.current_drawing, dsw->sw.num_current_drawing);
-    }	
-}
-
-/* Subtract the window area from the dirty area, and make the
-   result be the new current drawing list */
-
-static void SetCurrentDrawingToBackground(
-    DPSScrolledWindowWidget dsw)
-{
-    int i;
-    float r[4];
-
-    ConvertToPS(dsw, 0 + DELTA, dsw->sw.drawing_area->core.height - DELTA,
-		r, r+1);
-    ConvertToPS(dsw, dsw->sw.drawing_area->core.width - DELTA, 0 + DELTA,
-		r+2, r+3);
-    r[2] -= r[0];
-    r[3] -= r[1];
-
-    SubtractRects(&dsw->sw.dirty_areas, &dsw->sw.dirty_areas_size,
-		  &dsw->sw.num_dirty_areas, r, 1);
-
-    GrowRectList(&dsw->sw.current_drawing, &dsw->sw.current_drawing_size,
-		 0, dsw->sw.num_dirty_areas, 1);
-    for (i = 0; i < 4 * dsw->sw.num_dirty_areas; i++) {
-	dsw->sw.current_drawing[i] = dsw->sw.dirty_areas[i];
-    }
-    dsw->sw.num_current_drawing = dsw->sw.num_dirty_areas;
-}
-
-static void CopyPendingExpose(DPSScrolledWindowWidget dsw)
-{
-    int dx, dy;
-    int i;
-    int *r;
-
-    ComputeOffsets(dsw, &dx, &dy);
-
-    for (i = 0; i < dsw->sw.num_pending_expose; i++) {
-	r = dsw->sw.pending_expose + 4*i;
-	XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-		  XtWindow(dsw->sw.drawing_area),
-		  dsw->sw.no_ge_gc,
-		  LEFT(r) + dx, BOTTOM(r) + dy, WIDTH(r), HEIGHT(r),
-		  LEFT(r), BOTTOM(r));
-    }
-    dsw->sw.num_pending_expose = dsw->sw.num_pending_dirty = 0;
-}
-
-static void UpdateWindowFromBackingPixmap(
-    DPSScrolledWindowWidget dsw,
-    float *rects,
-    int n)
-{
-    int dx, dy;
-    int llx, lly, urx, ury;
-    int i;
-    float *r;
-
-    ComputeOffsets(dsw, &dx, &dy);
-
-    for (i = 0; i < n; i++) {
-	r = rects + 4*i;
-	ConvertToX(dsw, LEFT(r), BOTTOM(r), &llx, &lly);
-	ConvertToX(dsw, RIGHT(r), TOP(r), &urx, &ury);
-
-	XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-		  XtWindow(dsw->sw.drawing_area),
-		  dsw->sw.no_ge_gc,
-		  llx+dx-1, ury+dy-1, urx-llx+2, lly-ury+2, llx-1, ury-1);
-    }
-}
-
-static void UpdateWindowFromFeedbackPixmap(
-    DPSScrolledWindowWidget dsw,
-    float *rects,
-    int n)
-{
-    int llx, lly, urx, ury;
-    int i;
-    float *r;
-
-    for (i = 0; i < n; i++) {
-	r = rects + (i * 4);
-	ConvertToX(dsw, LEFT(r), BOTTOM(r), &llx, &lly);
-	ConvertToX(dsw, RIGHT(r), TOP(r), &urx, &ury);
-
-	XCopyArea(XtDisplay(dsw), dsw->sw.feedback_pixmap,
-		  XtWindow(dsw->sw.drawing_area), dsw->sw.no_ge_gc,
-		  llx-1, ury-1, urx-llx+2, lly-ury+2, llx-1, ury-1);
-    }
-}    
-
-/* This is the heart of the drawing code; it does one piece of drawing.
-   It can be called either directly or as a work procedure */
-
-static Boolean DoDrawing(XtPointer clientData)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) clientData;
-    DSWResults results;
-    DSWDrawableType which;
-
-    if (dsw->sw.drawing_stage == DSWStart && dsw->sw.watch_progress &&
-	dsw->sw.backing_pixmap != None && dsw->sw.num_current_drawing == 0) {
-	dsw->sw.drawing_stage = DSWDrewVisible;
-	CopyWindowToBackingPixmap(dsw);
-    }
-
-    switch (dsw->sw.drawing_stage) {
-	case DSWStart:
-	case DSWDrawingVisible:
-	    if (dsw->sw.watch_progress || dsw->sw.backing_pixmap == None) {
-		which = DSWWindow;
-	    } else which = DSWBackingPixmap;
-	    results = ClipAndDraw(dsw, which, DSWDrawSome,
-				  (dsw->sw.drawing_stage == DSWStart));
-	    if (results == DSWFinished) {
-		if (dsw->sw.watch_progress && dsw->sw.backing_pixmap != None) {
-		    dsw->sw.drawing_stage = DSWDrewVisible;
-		    CopyWindowToBackingPixmap(dsw);
-		} else {
-		    if (dsw->sw.minimal_drawing && dsw->sw.big_pixmap) {
-			dsw->sw.drawing_stage = DSWDrewVisible;
-			SetCurrentDrawingToBackground(dsw);
-		    } else {
-			dsw->sw.drawing_stage = DSWDone;
-			dsw->sw.num_dirty_areas = 0;
-		    }
-		    if (dsw->sw.num_pending_expose != 0 &&
-			dsw->sw.backing_pixmap != None) {
-			CopyPendingExpose(dsw);
-		    }
-		}
-	    } else dsw->sw.drawing_stage = DSWDrawingVisible;
-	    break;
-
-	case DSWDrewVisible:
-	case DSWDrawingBackground:
-	    results = ClipAndDraw(dsw, DSWBackingPixmap, DSWDrawSome,
-				  (dsw->sw.drawing_stage == DSWDrewVisible));
-	    if (results == DSWFinished) {
-		dsw->sw.drawing_stage = DSWDone;
-		dsw->sw.num_dirty_areas = 0;
-	    }
-	    else dsw->sw.drawing_stage = DSWDrawingBackground;
-	    break;
-
-	case DSWDone:
-	    break;
-    }
-
-    if (dsw->sw.drawing_stage == DSWDone && dsw->sw.num_pending_dirty != 0) {
-	CopyRectsToCurrentDrawing(dsw, dsw->sw.pending_dirty,
-				  dsw->sw.num_pending_dirty);
-	CopyRectsToDirtyArea(dsw, dsw->sw.pending_dirty,
-			     dsw->sw.num_pending_dirty);
-	dsw->sw.num_pending_dirty = 0;
-	dsw->sw.num_pending_expose = 0;
-	dsw->sw.drawing_stage = DSWStart;
-    }
-	
-    if (dsw->sw.drawing_stage == DSWDone) {
-	dsw->sw.work = 0;
-	if (dsw->sw.watch_progress) {
-	    /* Some of the background drawing may have been to areas that
-	       are visible */
-	    UpdateWindowFromBackingPixmap(dsw, dsw->sw.current_drawing,
-					  dsw->sw.num_current_drawing);
-	}
-	dsw->sw.num_current_drawing = 0;
-	if (dsw->sw.scrolling) {
-	    dsw->sw.scrolling = False;
-	    ScrollMoved(dsw);
-	}
-	return True;
-    } else return False;
-}
-
-static void StartDrawing(DPSScrolledWindowWidget dsw)
-{
-    float r[4];
-
-    CopyRectsToCurrentDrawing(dsw, dsw->sw.dirty_areas,
-			      dsw->sw.num_dirty_areas);
-
-    if (dsw->sw.watch_progress || dsw->sw.backing_pixmap == None) {
-	/* Intersect the current drawing area with the pending dirty area 
-	   (The pending dirty area represents the window exposures that
-	   have happened so far) */
-	IntersectRects(&dsw->sw.current_drawing, &dsw->sw.current_drawing_size,
-		       &dsw->sw.num_current_drawing,
-		       dsw->sw.pending_dirty, dsw->sw.num_pending_dirty);
-	dsw->sw.num_pending_dirty = dsw->sw.num_pending_expose = 0;
-    } else {
-	if (!dsw->sw.big_pixmap || dsw->sw.minimal_drawing) {
-	    /* Intersect the current drawing area to the window to start */
-	    ConvertToPS(dsw, 0 + DELTA,
-			dsw->sw.drawing_area->core.height - DELTA, r, r+1);
-	    ConvertToPS(dsw, dsw->sw.drawing_area->core.width - DELTA,
-			0 + DELTA, r+2, r+3);
-	    r[2] -= r[0];
-	    r[3] -= r[1];
-	    IntersectRects(&dsw->sw.current_drawing,
-			   &dsw->sw.current_drawing_size,
-			   &dsw->sw.num_current_drawing, r, 1);
-	}
-    }
-
-    if (dsw->sw.num_current_drawing == 0 && !dsw->sw.watch_progress) {
-	dsw->sw.drawing_stage = DSWFinished;
-	dsw->sw.num_dirty_areas = 0;
-	return;
-    }
-
-    dsw->sw.drawing_stage = DSWStart;
-    if (!DoDrawing((XtPointer) dsw)) {
-	dsw->sw.work =
-		XtAppAddWorkProc(XtWidgetToApplicationContext((Widget) dsw),
-				 DoDrawing, (XtPointer) dsw);
-    }
-}
-
-static void RedisplaySliver(DPSScrolledWindowWidget dsw, int deltaX, int deltaY)
-{
-    float r[8];
-    int xr[8];
-    int n;
-    int xllx, xlly, xurx, xury;
-    float llx, lly, urx, ury;
-
-    /* If one of the deltas is 0, then the area to update is just a
-       single rectangle. */
-    if (deltaX == 0 || deltaY == 0) {
-	if (deltaX == 0) {
-	    /* Just a single horizontal rectangle */
-
-	    xllx = 0;
-	    xurx = dsw->sw.drawing_area->core.width;
-	    if (deltaY > 0) {
-		xlly = dsw->sw.drawing_area->core.height;
-		xury = dsw->sw.drawing_area->core.height - deltaY;
-	    } else {
-		xlly = -deltaY;
-		xury = 0;
-	    }
-
-	} else if (deltaY == 0) {
-	    /* Just a single vertical rectangle */
-	    xlly = dsw->sw.drawing_area->core.height;
-	    xury = 0;
-	    if (deltaX > 0) {
-		xllx = dsw->sw.drawing_area->core.width - deltaX;
-		xurx = dsw->sw.drawing_area->core.width;
-	    } else {
-		xllx = 0;
-		xurx = -deltaX;
-	    }
-	}
-	/* Convert the rectangle into PS coordinates */
-	ConvertToPS(dsw, xllx + DELTA, xlly - DELTA, &llx, &lly);
-	ConvertToPS(dsw, xurx - DELTA, xury + DELTA, &urx, &ury);
-	r[0] = llx;
-	r[1] = lly;
-	r[2] = urx - llx;
-	r[3] = ury - lly;
-	xr[0] = xllx;
-	xr[1] = xury;
-	xr[2] = xurx - xllx;
-	xr[3] = xlly - xury;
-	n = 1;
-
-    } else {
-	/* Scrolling in both directions, so there are two rectangles.
-	   It's easiest to do if we let them overlap; fortunately that is
-	   legal!  First do the horizontal rectangle. */
-	xllx = 0;
-	xurx = dsw->sw.drawing_area->core.width;
-	if (deltaY > 0) {
-	    xlly = dsw->sw.drawing_area->core.height;
-	    xury = dsw->sw.drawing_area->core.height - deltaY;
-	} else {
-	    xlly = -deltaY;
-	    xury = 0;
-	}
-	ConvertToPS(dsw, xllx + DELTA, xlly - DELTA, &llx, &lly);
-	ConvertToPS(dsw, xurx - DELTA, xury + DELTA, &urx, &ury);
-
-	/* Store in point array */
-	r[0] = llx;
-	r[1] = lly;
-	r[2] = urx - llx;
-	r[3] = ury - lly;
-	xr[0] = xllx;
-	xr[1] = xury;
-	xr[2] = xurx - xllx;
-	xr[3] = xlly - xury;
-
-	/* Now do vertical rectangle and store in point array */
-	xlly = dsw->sw.drawing_area->core.height;
-	xury = 0;
-	if (deltaX > 0) {
-	    xllx = dsw->sw.drawing_area->core.width - deltaX;
-	    xurx = dsw->sw.drawing_area->core.width;
-	} else {
-	    xllx = 0;
-	    xurx = -deltaX;
-	}
-	ConvertToPS(dsw, xllx + DELTA, xlly - DELTA, &llx, &lly);
-	ConvertToPS(dsw, xurx - DELTA, xury + DELTA, &urx, &ury);
-	r[4] = llx;
-	r[5] = lly;
-	r[6] = urx - llx;
-	r[7] = ury - lly;
-	xr[4] = xllx;
-	xr[5] = xury;
-	xr[6] = xurx - xllx;
-	xr[7] = xlly - xury;
-	n = 2;
-    }
-
-    AddRectsToDirtyArea(dsw, r, n);
-    AddRectsToPending(dsw, xr, n);
-    StartDrawing(dsw);
-}
-
-static void SetUpInitialPixmap(DPSScrolledWindowWidget dsw)
-{
-    float *r = dsw->sw.dirty_areas;
-    int llx, lly, urx, ury;
-
-    CreateBackingPixmap(dsw);
-    if (dsw->sw.backing_pixmap != None) {
-	XDPSSetContextDrawable(dsw->sw.context, dsw->sw.backing_pixmap,
-			       dsw->sw.pixmap_height);
-
-	SetPixmapOffset(dsw);
-	SetPixmapOrigin(dsw);
-	XDPSCaptureContextGState(dsw->sw.context, &dsw->sw.backing_gstate);
-
-	if (dsw->sw.pixmap_width != CEIL(dsw->sw.drawing_width) ||
-	    dsw->sw.pixmap_height != CEIL(dsw->sw.drawing_height)) {
-
-	    /* Make the dirty area match the window */
-	    if (dsw->sw.pixmap_width > (int)dsw->sw.drawing_area->core.width) {
-		llx = dsw->sw.origin_x;
-		urx = llx + CEIL(dsw->sw.drawing_width);
-	    } else {
-		llx = 0;
-		urx = dsw->sw.drawing_area->core.width;
-	    }
-	    if (dsw->sw.pixmap_height >
-		(int) dsw->sw.drawing_area->core.height) {
-		lly = dsw->sw.origin_y;
-		ury = dsw->sw.origin_y - CEIL(dsw->sw.drawing_height);
-	    } else {
-		lly = dsw->sw.drawing_area->core.height;
-		ury = 0;
-	    }
-	    ConvertToPS(dsw, llx + DELTA, lly - DELTA, r, r+1);
-	    ConvertToPS(dsw, urx - DELTA, ury + DELTA, r+2, r+3);
-	    r[2] -= r[0];
-	    r[3] -= r[1];
-	    dsw->sw.num_dirty_areas = 1;
-	}
-	if (dsw->sw.doing_feedback) {
-	    CopyRectsToCurrentDrawing(dsw, dsw->sw.dirty_areas,
-				      dsw->sw.num_dirty_areas);
-	    FinishDrawing(dsw);
-	} else if (!dsw->sw.watch_progress) StartDrawing(dsw);
-    }
-}
-
-/* ARGSUSED */
-
-static void TimerStart(XtPointer clientData, XtIntervalId *id)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) clientData;
-
-    if (dsw->sw.drawing_stage == DSWStart) StartDrawing(dsw);
-}
-
-static void SetUpInitialInformation(DPSScrolledWindowWidget dsw)
-{
-    int i;
-    float llx, lly, urx, ury;
-    float xScale, yScale;
-    XExposeEvent ev;
-    XStandardColormap colorCube, grayRamp;
-    int match;
-
-    /* If the context's colormap matches the widget's colormap, assume that
-       everything is already set up right in the color cube department.  This
-       allows an application to supply us with a custom color cube by
-       installing it in the context before calling us */
-
-    _DPSSWColormapMatch(dsw->sw.context,
-			dsw->sw.drawing_area->core.colormap, &match);
-
-    if (match) {
-	XDPSSetContextParameters(dsw->sw.context, XtScreen(dsw),
-				 dsw->sw.drawing_area->core.depth,
-				 XtWindow(dsw->sw.drawing_area),
-				 dsw->sw.drawing_area->core.height, NULL, NULL,
-				 XDPSContextScreenDepth | XDPSContextDrawable);
-    } else {
-	grayRamp.colormap = colorCube.colormap =
-		dsw->sw.drawing_area->core.colormap;
-
-	XDPSCreateStandardColormaps(XtDisplay(dsw), XtWindow(dsw),
-				    (Visual *) NULL, 0, 0, 0, 0,
-				    &colorCube, &grayRamp, False);
-
-	XDPSSetContextParameters(dsw->sw.context, XtScreen(dsw),
-				 dsw->sw.drawing_area->core.depth,
-				 XtWindow(dsw->sw.drawing_area),
-				 dsw->sw.drawing_area->core.height,
-				 (XDPSStandardColormap *) &colorCube,
-				 (XDPSStandardColormap *) &grayRamp,
-				 XDPSContextScreenDepth | XDPSContextDrawable |
-				 XDPSContextRGBMap | XDPSContextGrayMap);
-    }
-
-    DPSinitgraphics(dsw->sw.context);
-    _DPSSWGetTransform(dsw->sw.context, dsw->sw.ctm, dsw->sw.orig_inv_ctm);
-    dsw->sw.x_offset = 0;
-    dsw->sw.y_offset = dsw->sw.drawing_area->core.height;
-    for (i = 0; i < 6; i++) dsw->sw.inv_ctm[i] = dsw->sw.orig_inv_ctm[i];
-
-    ConvertToPS(dsw, 0.0, 100.0, &llx, &lly);
-    ConvertToPS(dsw, 100.0, 0.0, &urx, &ury);
-    xScale = ABS(100.0 / (urx - llx));
-    yScale = ABS(100.0 / (ury - lly));
-
-    if (dsw->sw.scale != 1.0) {
-	DPSscale(dsw->sw.context, dsw->sw.scale, dsw->sw.scale);
-	_DPSSWGetTransform(dsw->sw.context, dsw->sw.ctm, dsw->sw.inv_ctm);
-    }
-	
-    dsw->sw.drawing_width = dsw->sw.area_width * xScale * dsw->sw.scale;
-    dsw->sw.drawing_height = dsw->sw.area_height * yScale * dsw->sw.scale;
-
-    dsw->sw.unscaled_width = dsw->sw.drawing_width / dsw->sw.scale + 1;
-    dsw->sw.unscaled_height = dsw->sw.drawing_height / dsw->sw.scale + 1;
-
-    if (!dsw->sw.use_saved_scroll) {
-	dsw->sw.scroll_pic_x = dsw->sw.area_width / 2;
-	dsw->sw.scroll_pic_y = dsw->sw.area_height / 2;
-	dsw->sw.scroll_win_x = dsw->sw.drawing_area->core.width / 2;
-	dsw->sw.scroll_win_y = dsw->sw.drawing_area->core.height / 2;
-    }
-
-    SetDrawingAreaPosition(dsw, dsw->sw.scroll_pic_x, dsw->sw.scroll_pic_y,
-			   dsw->sw.scroll_win_x, dsw->sw.scroll_win_y, True);
-    SetOriginAndGetTransform(dsw);
-    XDPSCaptureContextGState(dsw->sw.context, &dsw->sw.window_gstate);
-
-    dsw->sw.drawing_stage = DSWStart;
-
-    if (dsw->sw.use_backing_pixmap) SetUpInitialPixmap(dsw);
-
-    if (dsw->sw.doing_feedback) return;
-
-    if (dsw->sw.watch_progress || dsw->sw.backing_pixmap == None) {
-	/* If watching progress or no pixmap, clear the window to ensure
-	   that things get started */
-	XClearArea(XtDisplay(dsw), XtWindow(dsw->sw.drawing_area),
-		   0, 0, 0, 0, True);
-	XSync(XtDisplay(dsw), False);
-	if (dsw->sw.watch_progress && dsw->sw.watch_progress_delay > 0) {
-	    /* Set a timer so that we start drawing if nothing is visible */
-	    (void) XtAppAddTimeOut(XtWidgetToApplicationContext((Widget) dsw),
-				   dsw->sw.watch_progress_delay,
-				   TimerStart, (XtPointer) dsw);
-	}
-    } else {
-	/* Put a synthetic expose event in the pending queue */
-	ev.x = ev.y = 0;
-	ev.width = dsw->sw.drawing_area->core.width;
-	ev.height = dsw->sw.drawing_area->core.height;
-	SplitExposeEvent(dsw, &ev);
-    }
-}
-
-static void Realize(
-    Widget w,
-    XtValueMask *mask,
-    XSetWindowAttributes *attr)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    DSWSetupCallbackRec setup;
-
-    /* Let my parent do all the hard work */
-    (*dpsScrolledWindowClassRec.core_class.superclass->core_class.realize)
-	    (w, mask, attr);
-
-    /* We delay calling the setup callback so that the caller can use
-       XtAddCallback to add it */
-    setup.context = dsw->sw.context;
-    XtCallCallbackList((Widget) dsw, dsw->sw.setup_callback,
-		       (XtPointer) &setup);
-
-    /* Now, explicitly realize my children */
-    XtRealizeWidget(dsw->sw.scrolled_window);
-
-    /* Et voila, now we have windows! */
-    SetUpInitialInformation(dsw);
-}
-
-static void AbortOrFinish(DPSScrolledWindowWidget dsw)
-{
-    DSWResults results;
-    DSWDrawableType which;
-    
-    if (dsw->sw.work != 0) {
-	XtRemoveWorkProc(dsw->sw.work);
-	dsw->sw.work = 0;
-    }
-
-    switch (dsw->sw.drawing_stage) {
-	case DSWStart:
-	    return;
-	    /* break; */
-
-	case DSWDrawingVisible:
-	    if (dsw->sw.watch_progress || dsw->sw.backing_pixmap == None) {
-		which = DSWWindow;
-	    } else which = DSWBackingPixmap;
-	    results = ClipAndDraw(dsw, which, DSWAbortOrFinish, False);
-	    if (results == DSWAborted) {
-		dsw->sw.drawing_stage = DSWStart;
-		if (dsw->sw.backing_pixmap == None || dsw->sw.watch_progress) {
-		    /* Add the current drawing area back into the pending
-		       expose area */
-		    AddUserSpaceRectsToPending(dsw, dsw->sw.current_drawing,
-					       dsw->sw.num_current_drawing);
-		}
-		return;
-	    }
-	    if (dsw->sw.watch_progress && dsw->sw.backing_pixmap != None) {
-		dsw->sw.drawing_stage = DSWDrewVisible;
-		CopyWindowToBackingPixmap(dsw);
-		if (dsw->sw.num_current_drawing != 0) {
-		    results = ClipAndDraw(dsw, DSWBackingPixmap,
-					  DSWAbortOrFinish, True);
-		}
-		if (results == DSWAborted) {
-		    dsw->sw.drawing_stage = DSWStart;
-		    return;
-		}
-	    } else {
-		if (dsw->sw.backing_pixmap != None) {
-		    if (dsw->sw.num_pending_expose != 0) {
-			CopyPendingExpose(dsw);
-		    }
-
-		    if (dsw->sw.minimal_drawing && dsw->sw.big_pixmap) {
-			dsw->sw.drawing_stage = DSWDrewVisible;
-			SetCurrentDrawingToBackground(dsw);
-			results = ClipAndDraw(dsw, which,
-					      DSWAbortOrFinish, True);
-			if (results == DSWAborted) {
-			    dsw->sw.drawing_stage = DSWStart;
-			    return;
-			}
-		    }
-		}
-	    }
-	    break;
-
-	case DSWDrewVisible:
-	case DSWDrawingBackground:
-	    results = ClipAndDraw(dsw, DSWBackingPixmap, DSWAbortOrFinish,
-				  (dsw->sw.drawing_stage == DSWDrewVisible));
-	    if (results == DSWAborted) {
-		dsw->sw.drawing_stage = DSWStart;
-		return;
-	    }
-	    break;
-
-	case DSWDone:
-	    break;
-    }
-
-    dsw->sw.drawing_stage = DSWDone;
-    dsw->sw.num_dirty_areas = 0;
-    return;
-}
-
-static void AbortDrawing(DPSScrolledWindowWidget dsw)
-{
-    DSWDrawableType which;
-
-    if (dsw->sw.work != 0) {
-	XtRemoveWorkProc(dsw->sw.work);
-	dsw->sw.work = 0;
-    }
-
-    switch (dsw->sw.drawing_stage) {
-	case DSWStart:
-	case DSWDone:
-	case DSWDrewVisible:
-	    break;
-
-	case DSWDrawingVisible:
-	    if (dsw->sw.watch_progress || dsw->sw.backing_pixmap == None) {
-		which = DSWWindow;
-	    } else which = DSWBackingPixmap;
-	    (void) ClipAndDraw(dsw, which, DSWAbort, False);
-	    break;
-
-	case DSWDrawingBackground:
-	    (void) ClipAndDraw(dsw, DSWBackingPixmap, DSWAbort, False);
-	    break;
-
-    }
-
-    dsw->sw.num_pending_expose = dsw->sw.num_pending_dirty = 0;
-}
-
-static void FinishDrawing(DPSScrolledWindowWidget dsw)
-{
-    DSWDrawableType which;
-    
-    if (dsw->sw.work != 0) {
-	XtRemoveWorkProc(dsw->sw.work);
-	dsw->sw.work = 0;
-    }
-
-    switch (dsw->sw.drawing_stage) {
-	case DSWStart:
-	case DSWDrawingVisible:
-	    if (dsw->sw.watch_progress || dsw->sw.backing_pixmap == None) {
-		which = DSWWindow;
-	    } else which = DSWBackingPixmap;
-	    if (dsw->sw.drawing_stage == DSWStart) {
-		ClipToDrawingSize(dsw, which);
-		if (dsw->sw.num_current_drawing == 0) return;
-	    }
-	    (void) ClipAndDraw(dsw, which, DSWFinish,
-			       dsw->sw.drawing_stage == DSWStart);
-	    if (dsw->sw.watch_progress && dsw->sw.backing_pixmap != None) {
-		dsw->sw.drawing_stage = DSWDrewVisible;
-		CopyWindowToBackingPixmap(dsw);
-		if (dsw->sw.num_current_drawing != 0) {
-		    (void) ClipAndDraw(dsw, DSWBackingPixmap, DSWFinish, True);
-		}
-	    } else {
-		if (dsw->sw.backing_pixmap != None) {
-		    if (dsw->sw.num_pending_expose != 0) {
-			CopyPendingExpose(dsw);
-		    }
-
-		    if (dsw->sw.minimal_drawing && dsw->sw.big_pixmap) {
-			dsw->sw.drawing_stage = DSWDrewVisible;
-			SetCurrentDrawingToBackground(dsw);
-			(void) ClipAndDraw(dsw, which, DSWFinish, True);
-		    }
-		}
-	    }
-	    break;
-
-	case DSWDrewVisible:
-	case DSWDrawingBackground:
-	     (void) ClipAndDraw(dsw, DSWBackingPixmap, DSWFinish,
-				(dsw->sw.drawing_stage == DSWDrewVisible));
-	    break;
-
-	case DSWDone:
-	    break;
-    }
-
-    dsw->sw.drawing_stage = DSWDone;
-    dsw->sw.num_dirty_areas = 0;
-}
-
-static void DoScroll(
-    DPSScrolledWindowWidget dsw,
-    int deltaX, int deltaY)
-{
-    /* Set the PS origin in the X window to the new settings of 
-       the scrollbars */
-    dsw->sw.origin_x -= deltaX;
-    dsw->sw.origin_y -= deltaY;
-
-    /* Update the graphics states for the window and backing pixmap to
-       reflect new origin */
-    (void) XDPSSetContextGState(dsw->sw.context, dsw->sw.window_gstate);
-    SetOriginAndGetTransform(dsw);
-    (void) XDPSUpdateContextGState(dsw->sw.context, dsw->sw.window_gstate);
-
-    if (dsw->sw.backing_pixmap != None && !dsw->sw.big_pixmap) {
-	(void) XDPSSetContextGState(dsw->sw.context, dsw->sw.backing_gstate);
-	SetPixmapOrigin(dsw);
-	(void) XDPSUpdateContextGState(dsw->sw.context,
-				       dsw->sw.backing_gstate);
-    }
-
-    /* Update the stored position of the scroll bars */
-    dsw->sw.scroll_x += deltaX;
-    dsw->sw.scroll_y += deltaY;
-}
-
-static void ShiftPendingExpose(
-    DPSScrolledWindowWidget dsw,
-    int deltaX, int deltaY)
-{
-    int i;
-    int *r;
-
-    for (i = 0; i < dsw->sw.num_pending_expose; i++) {
-	r = dsw->sw.pending_expose + 4*i;
-	r[0] -= deltaX;
-	r[1] -= deltaY;
-    }
-}
-
-static void HScrollCallback(
-    Widget w,
-    XtPointer clientData, XtPointer callData)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) clientData;
-    XmScrollBarCallbackStruct *sb = (XmScrollBarCallbackStruct *) callData;
-
-    if (!dsw->sw.application_scrolling) {
-	dsw->sw.scroll_h_value = sb->value;
-	ScrollMoved(dsw);
-    }
-}
-
-static void VScrollCallback(
-    Widget w,
-    XtPointer clientData, XtPointer callData)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) clientData;
-    XmScrollBarCallbackStruct *sb = (XmScrollBarCallbackStruct *) callData;
-
-    if (!dsw->sw.application_scrolling) {
-	dsw->sw.scroll_v_value = sb->value;
-	ScrollMoved(dsw);
-    }
-}
-
-/* ARGSUSED */
-
-static void ScrollMoved(DPSScrolledWindowWidget dsw)
-{
-    int deltaX, deltaY;
-
-    /* If we haven't started drawing yet, it must be because we're waiting
-       for GraphicsExpose events.  Delay scrolling until they come in */
-    if (dsw->sw.scrolling && dsw->sw.drawing_stage == DSWStart) return;
-
-    /* Calculate the delta in the scrolling */
-    deltaX = dsw->sw.scroll_h_value - dsw->sw.scroll_x;
-    deltaY = dsw->sw.scroll_v_value - dsw->sw.scroll_y;
-
-    /* If there is some scrolling to do, then scroll the pixmap and
-       copy the pixmap to the window */
-    if (deltaX == 0 && deltaY == 0) return;
-
-    ShiftPendingExpose(dsw, deltaX, deltaY);
-
-    AbortOrFinish(dsw);
-
-    DoScroll(dsw, deltaX, deltaY);
-
-    if (!dsw->sw.big_pixmap) {
-	/* Copy visible area to new location */
-	if (dsw->sw.backing_pixmap != None) {
-	    XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-		      dsw->sw.backing_pixmap, dsw->sw.no_ge_gc,
-		      deltaX, deltaY, dsw->sw.drawing_area->core.width,
-		      dsw->sw.drawing_area->core.height, 0, 0);
-	    if (!dsw->sw.doing_feedback || dsw->sw.feedback_pixmap == None) {
-		XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-			  XtWindow(dsw->sw.drawing_area), dsw->sw.no_ge_gc,
-			  0, 0, dsw->sw.drawing_area->core.width,
-			  dsw->sw.drawing_area->core.height, 0, 0);
-	    }
-	    RedisplaySliver(dsw, deltaX, deltaY);
-	} else {
-	    if (!dsw->sw.doing_feedback || dsw->sw.feedback_pixmap == None) {
-		XCopyArea(XtDisplay(dsw), XtWindow(dsw->sw.drawing_area),
-			  XtWindow(dsw->sw.drawing_area), dsw->sw.ge_gc,
-			  deltaX, deltaY, dsw->sw.drawing_area->core.width,
-			  dsw->sw.drawing_area->core.height, 0, 0);
-	    }
-	    if (dsw->sw.doing_feedback) RedisplaySliver(dsw, deltaX, deltaY);
-	    else dsw->sw.drawing_stage = DSWStart;
-	}
-    }
-
-    if (dsw->sw.doing_feedback) {
-	float *r;
-
-	FinishDrawing(dsw);
-
-	r = dsw->sw.prev_dirty_areas;
-	ConvertToPS(dsw, 0 + DELTA, dsw->sw.drawing_area->core.height - DELTA,
-		    r, r+1);
-	ConvertToPS(dsw, dsw->sw.drawing_area->core.width - DELTA, 0 + DELTA,
-		    r+2, r+3);
-	r[2] -= r[0];
-	r[3] -= r[1];
-	dsw->sw.num_prev_dirty_areas = 1;
-
-	if (dsw->sw.feedback_pixmap != None) {
-	    XDPSSetContextDrawable(dsw->sw.context, dsw->sw.feedback_pixmap,
-				   dsw->sw.drawing_area->core.height);
-	    SetPixmapOrigin(dsw);
-	    XDPSCaptureContextGState(dsw->sw.context,
-				     &dsw->sw.feedback_gstate);
-
-	    /* Initialize the feedback pixmap with a copy of the drawing */
-	    if (dsw->sw.backing_pixmap != None) {
-		CopyToFeedbackPixmap(dsw, dsw->sw.prev_dirty_areas,
-				     dsw->sw.num_prev_dirty_areas);
-	    } else {
-		CopyRectsToCurrentDrawing(dsw, dsw->sw.prev_dirty_areas,
-					  dsw->sw.num_prev_dirty_areas);
-		(void) ClipAndDraw(dsw, DSWFeedbackPixmap, DSWFinish, True);
-	    }
-	    if (!dsw->sw.feedback_displayed) {
-		XCopyArea(XtDisplay(dsw), dsw->sw.feedback_pixmap,
-			  XtWindow(dsw->sw.drawing_area),
-			  dsw->sw.no_ge_gc, 0, 0, 
-			  dsw->sw.drawing_area->core.width,
-			  dsw->sw.drawing_area->core.height, 0, 0);
-	    }
-	}
-
-	if (dsw->sw.feedback_displayed) {
-	    CallFeedbackCallback(dsw, dsw->sw.prev_dirty_areas,
-				 dsw->sw.num_prev_dirty_areas);
-	}
-	if (dsw->sw.feedback_pixmap != None) {
-	    UpdateWindowFromFeedbackPixmap(dsw, dsw->sw.prev_dirty_areas,
-					   dsw->sw.num_prev_dirty_areas);
-	}
-	dsw->sw.num_pending_dirty = dsw->sw.num_pending_expose = 0;
-
-    } else {
-	if (dsw->sw.backing_pixmap != None &&
-	    dsw->sw.drawing_stage == DSWDone) {
-	    ComputeOffsets(dsw, &deltaX, &deltaY);
-	    if (!dsw->sw.big_pixmap) dsw->sw.scrolling = True;
-
-	    XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-		      XtWindow(dsw->sw.drawing_area), dsw->sw.no_ge_gc,
-		      deltaX, deltaY,
-		      dsw->sw.drawing_area->core.width,
-		      dsw->sw.drawing_area->core.height, 0, 0);
-	} else dsw->sw.scrolling = True;
-    }
-}
-
-static void AddExposureToPending(
-    DPSScrolledWindowWidget dsw,
-    XExposeEvent *ev)
-{
-    float *f;
-    int *i;
-
-    if (dsw->sw.backing_pixmap == None || dsw->sw.watch_progress ||
-	dsw->sw.doing_feedback) {
-	GrowRectList(&dsw->sw.pending_dirty, &dsw->sw.pending_dirty_size,
-		     dsw->sw.num_pending_dirty, 1, 1);
-
-	f = dsw->sw.pending_dirty + (dsw->sw.num_pending_dirty * 4);
-	ConvertToPS(dsw, ev->x + DELTA, ev->y + ev->height - DELTA, f, f+1);
-	ConvertToPS(dsw, ev->x + ev->width - DELTA, ev->y + DELTA, f+2, f+3);
-	f[2] -= f[0];
-	f[3] -= f[1];
-	dsw->sw.num_pending_dirty++;
-    }
-
-    GrowIntRectList(&dsw->sw.pending_expose, &dsw->sw.pending_expose_size,
-		    dsw->sw.num_pending_expose, 1, 1);
-
-    i = dsw->sw.pending_expose + (dsw->sw.num_pending_expose * 4);
-    i[0] = ev->x;
-    i[1] = ev->y;
-    i[2] = ev->width;
-    i[3] = ev->height;
-    dsw->sw.num_pending_expose++;
-}
-
-static void AddRectsToPending(
-    DPSScrolledWindowWidget dsw,
-    int *newRect,
-    int n)
-{
-    int *r;
-    int i;
-    float *f;
-
-    if (dsw->sw.backing_pixmap == None || dsw->sw.watch_progress) {
-	GrowRectList(&dsw->sw.pending_dirty, &dsw->sw.pending_dirty_size,
-		     dsw->sw.num_pending_dirty, n, 1);
-
-	for (i = 0; i < n; i++) {
-	    f = dsw->sw.pending_dirty + (dsw->sw.num_pending_dirty * 4);
-	    r = newRect + (i * 4);
-	    ConvertToPS(dsw, r[0] + DELTA, r[1] + r[3] - DELTA, f, f+1);
-	    ConvertToPS(dsw, r[0] + r[2] - DELTA, r[1] + DELTA, f+2, f+3);
-	    f[2] -= f[0];
-	    f[3] -= f[1];
-	    dsw->sw.num_pending_dirty++;
-	}
-    }
-
-    GrowIntRectList(&dsw->sw.pending_expose, &dsw->sw.pending_expose_size,
-		    dsw->sw.num_pending_expose, n, 1);
-
-    r = dsw->sw.pending_expose + (dsw->sw.num_pending_expose * 4);
-    for (i = 0; i < 4*n; i++) r[i] = newRect[i];
-    dsw->sw.num_pending_expose += n;
-}
-
-static void AddUserSpaceRectsToPending(
-    DPSScrolledWindowWidget dsw,
-    float *newRect,
-    int n)
-{
-    int *r;
-    int i;
-    float *f;
-
-    if (dsw->sw.backing_pixmap == None || dsw->sw.watch_progress) {
-	GrowRectList(&dsw->sw.pending_dirty, &dsw->sw.pending_dirty_size,
-		     dsw->sw.num_pending_dirty, n, 1);
-
-	f = dsw->sw.pending_dirty + (dsw->sw.num_pending_dirty * 4);
-	for (i = 0; i < 4*n; i++) f[i] = newRect[i];
-	dsw->sw.num_pending_dirty += n;
-    }
-
-    GrowIntRectList(&dsw->sw.pending_expose, &dsw->sw.pending_expose_size,
-		    dsw->sw.num_pending_expose, n, 1);
-
-    for (i = 0; i < n; i++) {
-	r = dsw->sw.pending_expose + (dsw->sw.num_pending_expose * 4);
-	f = newRect + (i * 4);
-	ConvertToX(dsw, LEFT(f), TOP(f), r, r+1);
-	ConvertToX(dsw, RIGHT(f), BOTTOM(f), r+2, r+3);
-	r[2] -= r[0];
-	r[3] -= r[1];
-	dsw->sw.num_pending_expose++;
-    }
-}
-
-static void CopyRectsToCurrentDrawing(
-    DPSScrolledWindowWidget dsw,
-    float *newRect,
-    int n)
-{
-    float *r;
-    int i;
-
-    GrowRectList(&dsw->sw.current_drawing, &dsw->sw.current_drawing_size,
-		 0, n, 1);
-
-    r = dsw->sw.current_drawing;
-    for (i = 0; i < 4*n; i++) r[i] = newRect[i];
-    dsw->sw.num_current_drawing = n;
-}
-
-static void CopyRectsToDirtyArea(
-    DPSScrolledWindowWidget dsw,
-    float *newRect,
-    int n)
-{
-    float *r;
-    int i;
-
-    GrowRectList(&dsw->sw.dirty_areas, &dsw->sw.dirty_areas_size, 0, n, 1);
-
-    r = dsw->sw.dirty_areas;
-    for (i = 0; i < 4*n; i++) r[i] = newRect[i];
-    dsw->sw.num_dirty_areas = n;
-}
-
-static void AddRectsToDirtyArea(
-    DPSScrolledWindowWidget dsw,
-    float *newRect,
-    int n)
-{
-    float *r;
-    int i;
-
-    GrowRectList(&dsw->sw.dirty_areas, &dsw->sw.dirty_areas_size,
-		 dsw->sw.num_dirty_areas, n, 1);
-
-    r = dsw->sw.dirty_areas + (4 * dsw->sw.num_dirty_areas);
-    for (i = 0; i < 4*n; i++) r[i] = newRect[i];
-    dsw->sw.num_dirty_areas += n;
-}
-
-static void CopyRectsToPrevDirtyArea(
-    DPSScrolledWindowWidget dsw,
-    float *newRect,
-    int n)
-{
-    float *r;
-    int i;
-
-    GrowRectList(&dsw->sw.prev_dirty_areas,
-		 &dsw->sw.prev_dirty_areas_size, 0, n, 1);
-
-    r = dsw->sw.prev_dirty_areas;
-    for (i = 0; i < 4*n; i++) r[i] = newRect[i];
-    dsw->sw.num_prev_dirty_areas = n;
-}
-
-/* ARGSUSED */
-
-static void DrawingAreaGraphicsExpose(
-    Widget w,
-    XtPointer clientData,
-    XEvent *event,
-    Boolean *goOn)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) clientData;
-    XExposeEvent *ev = (XExposeEvent *) event;
-
-    switch (event->type) {
-	case GraphicsExpose:
-	    /* GraphicsExpose occur during unbuffered scrolling */
-	    if (dsw->sw.backing_pixmap == None && dsw->sw.scrolling) {
-		/* Unbuffered scrolling case */
-		AddExposureToPending(dsw, ev);
-
-		if (ev->count == 0) {
-		    AddRectsToDirtyArea(dsw, dsw->sw.pending_dirty,
-					 dsw->sw.num_pending_dirty);
-		    StartDrawing(dsw);
-		    dsw->sw.num_pending_dirty = dsw->sw.num_pending_expose = 0;
-		}
-	    }
-	    break;
-    }
-}
-
-static Boolean MoreExposes(Widget w)
-{
-    XEvent event;
-
-    if (XPending(XtDisplay(w)) > 0) {
-	if (XCheckTypedWindowEvent(XtDisplay(w), XtWindow(w),
-				   Expose, &event)) {
-	    XPutBackEvent(XtDisplay(w), &event);
-	    return True;;
-	}
-    }
-    return False;
-}
-
-static void DrawingAreaExpose(
-    Widget w,
-    XtPointer clientData, XtPointer callData)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) clientData;
-    XmDrawingAreaCallbackStruct *d = (XmDrawingAreaCallbackStruct *) callData;
-    XExposeEvent *ev = (XExposeEvent *) d->event;
-    int dx, dy;
-
-    if (dsw->sw.doing_feedback) {
-	if (dsw->sw.feedback_pixmap != None) {
-	    XCopyArea(XtDisplay(dsw), dsw->sw.feedback_pixmap,
-		      XtWindow(dsw->sw.drawing_area),
-		      dsw->sw.no_ge_gc,
-		      ev->x, ev->y, ev->width, ev->height, ev->x, ev->y);
-	} else {
-	    if (dsw->sw.backing_pixmap != None) {
-		ComputeOffsets(dsw, &dx, &dy);
-
-		XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-			  XtWindow(dsw->sw.drawing_area),
-			  dsw->sw.no_ge_gc, ev->x + dx, ev->y + dy,
-			  ev->width, ev->height, ev->x, ev->y);
-	    }
-	    AddExposureToPending(dsw, ev);
-	    if (ev->count != 0 || MoreExposes(w)) return;
-
-	    if (dsw->sw.backing_pixmap == None) {
-		CopyRectsToCurrentDrawing(dsw, dsw->sw.pending_dirty,
-					  dsw->sw.num_pending_dirty);
-		dsw->sw.drawing_stage = DSWStart;
-		FinishDrawing(dsw);
-	    }
-	    if (dsw->sw.feedback_displayed) {
-		CallFeedbackCallback(dsw, dsw->sw.pending_dirty,
-				     dsw->sw.num_pending_dirty);
-	    }
-	    dsw->sw.num_pending_dirty = dsw->sw.num_pending_expose = 0;
-	}
-	return;
-    }
-
-    if (dsw->sw.backing_pixmap != None) {
-	if (dsw->sw.drawing_stage == DSWStart && dsw->sw.watch_progress) {
-	    SplitExposeEvent(dsw, ev);
-	    if (ev->count == 0) {
-		if (MoreExposes(w)) return;
-		StartDrawing(dsw);
-		dsw->sw.num_pending_dirty = dsw->sw.num_pending_expose = 0;
-	    }
-	    return;
-	}
-
-	if (dsw->sw.drawing_stage < DSWDrewVisible) {
-	    SplitExposeEvent(dsw, ev);
-	    return;
-	}
-	ComputeOffsets(dsw, &dx, &dy);
-
-	XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-		  XtWindow(dsw->sw.drawing_area),
-		  dsw->sw.no_ge_gc,
-		  ev->x + dx, ev->y + dy, ev->width, ev->height, ev->x, ev->y);
-    } else {
-	AddExposureToPending(dsw, ev);
-	if (ev->count == 0) {
-	    if (MoreExposes(w)) return;
-	    if (dsw->sw.drawing_stage == DSWDone ||
-		dsw->sw.drawing_stage == DSWStart) {
-		CopyRectsToDirtyArea(dsw, dsw->sw.pending_dirty,
-				    dsw->sw.num_pending_dirty);
-		StartDrawing(dsw);
-		dsw->sw.num_pending_dirty = dsw->sw.num_pending_expose = 0;
-	    }
-	}
-    }
-}	      
-
-static void Resize(Widget w)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    DSWResizeCallbackRec r;
-    float x, y;
-
-    if (XtIsRealized(w)) (void) AbortOrFinish(dsw);
-
-    r.oldw = dsw->sw.scrolled_window->core.width;
-    r.oldh = dsw->sw.scrolled_window->core.height;
-    r.neww = dsw->core.width;
-    r.newh = dsw->core.height;
-    r.x = r.y = 0;
-
-    XtCallCallbackList(w, dsw->sw.resize_callback, (XtPointer) &r);
-
-    if (XtIsRealized(w)) {
-	ConvertToPS(dsw, (float) r.x, (float) r.y, &x, &y);
-    } else if (r.x != 0 || r.y != 0) ScrollBy(w, r.x, r.y);
-
-    XtResizeWidget(dsw->sw.scrolled_window, w->core.width, w->core.height, 0);
-
-    if (!XtIsRealized(w)) return;
-
-    if (dsw->sw.backing_pixmap != None &&
-	dsw->sw.pixmap_width == CEIL(dsw->sw.drawing_width) &&
-	dsw->sw.pixmap_height == CEIL(dsw->sw.drawing_height) &&
-	dsw->sw.pixmap_width >= (int) dsw->sw.drawing_area->core.width &&
-	dsw->sw.pixmap_height >= (int) dsw->sw.drawing_area->core.width) {
-	
-	XDPSSetContextGState(dsw->sw.context, dsw->sw.window_gstate);
-	DPSinitclip(dsw->sw.context);
-	DPSinitviewclip(dsw->sw.context);
-	SetDrawingAreaPosition(dsw, x, y, r.x, r.y, True);
-	SetOriginAndGetTransform(dsw);
-	XDPSUpdateContextGState(dsw->sw.context, dsw->sw.window_gstate);
-	XClearArea(XtDisplay(dsw), XtWindow(dsw->sw.drawing_area),
-		   0, 0, 0, 0, True);
-    } else {
-	dsw->sw.use_saved_scroll = True;
-	dsw->sw.scroll_pic_x = x;
-	dsw->sw.scroll_pic_y = y;
-	dsw->sw.scroll_win_x = r.x;
-	dsw->sw.scroll_win_y = r.y;
-
-	if (dsw->sw.backing_pixmap != None) {
-	    XFreePixmap(XtDisplay(dsw), dsw->sw.backing_pixmap);
-	    XDPSFreeContextGState(dsw->sw.context, dsw->sw.backing_gstate);
-	}
-	dsw->sw.backing_pixmap = None;
-	dsw->sw.big_pixmap = False;
-	dsw->sw.pixmap_width = dsw->sw.pixmap_height = 0;
-
-	dsw->sw.num_dirty_areas = 1;
-	LEFT(dsw->sw.dirty_areas) = 0.0;
-	BOTTOM(dsw->sw.dirty_areas) = 0.0;
-	WIDTH(dsw->sw.dirty_areas) = dsw->sw.area_width;
-	HEIGHT(dsw->sw.dirty_areas) = dsw->sw.area_height;
-
-	SetUpInitialInformation(dsw);
-    }
-
-    if (dsw->sw.doing_feedback) {
-	float *r;
-	int dx, dy;
-
-	CheckFeedbackPixmap(dsw);
-	r = dsw->sw.prev_dirty_areas;
-	ConvertToPS(dsw, 0 + DELTA, dsw->sw.drawing_area->core.height - DELTA,
-		    r, r+1);
-	ConvertToPS(dsw, dsw->sw.drawing_area->core.width - DELTA, 0 + DELTA,
-		    r+2, r+3);
-	r[2] -= r[0];
-	r[3] -= r[1];
-	dsw->sw.num_prev_dirty_areas = 1;
-
-	if (dsw->sw.feedback_pixmap != None) {
-	    /* Initialize the feedback pixmap with a copy of the drawing */
-	    if (dsw->sw.backing_pixmap != None) {
-		CopyToFeedbackPixmap(dsw, dsw->sw.prev_dirty_areas,
-				     dsw->sw.num_prev_dirty_areas);
-	    } else {
-		CopyRectsToCurrentDrawing(dsw, dsw->sw.prev_dirty_areas,
-					  dsw->sw.num_prev_dirty_areas);
-		(void) ClipAndDraw(dsw, DSWFeedbackPixmap, DSWFinish, True);
-	    }
-	    XCopyArea(XtDisplay(dsw), dsw->sw.feedback_pixmap,
-		      XtWindow(dsw->sw.drawing_area),
-		      dsw->sw.no_ge_gc, 0, 0, 
-		      dsw->sw.drawing_area->core.width,
-		      dsw->sw.drawing_area->core.height, 0, 0);
-	} else {
-	    if (dsw->sw.backing_pixmap != None) {
-		ComputeOffsets(dsw, &dx, &dy);
-
-		XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-			  XtWindow(dsw->sw.drawing_area),
-			  dsw->sw.no_ge_gc, dx, dy,
-			  dsw->sw.drawing_area->core.width,
-			  dsw->sw.drawing_area->core.height, 0, 0);
-	    } else {
-		CopyRectsToCurrentDrawing(dsw, dsw->sw.prev_dirty_areas,
-					  dsw->sw.num_prev_dirty_areas);
-		dsw->sw.drawing_stage = DSWStart;
-		FinishDrawing(dsw);
-	    }
-	}
-	if (dsw->sw.feedback_displayed) {
-	    CallFeedbackCallback(dsw, dsw->sw.prev_dirty_areas,
-				 dsw->sw.num_prev_dirty_areas);
-	}
-	if (dsw->sw.feedback_pixmap != None) {
-	    UpdateWindowFromFeedbackPixmap(dsw, dsw->sw.prev_dirty_areas,
-					   dsw->sw.num_prev_dirty_areas);
-	}
-	dsw->sw.num_pending_dirty = dsw->sw.num_pending_expose = 0;
-    }
-}
-
-static void CheckFeedbackPixmap(DPSScrolledWindowWidget dsw)
-{
-    if (dsw->sw.feedback_pixmap != None &&
-	(dsw->sw.feedback_width < (int) dsw->sw.drawing_area->core.width ||
-	 dsw->sw.feedback_height < (int) dsw->sw.drawing_area->core.height)) {
-	XFreePixmap(XtDisplay(dsw), dsw->sw.feedback_pixmap);
-	dsw->sw.feedback_pixmap = None;
-	dsw->sw.feedback_width = dsw->sw.feedback_height = 0;
-    }
-    if (dsw->sw.use_feedback_pixmap && dsw->sw.feedback_pixmap == None) {
-	dsw->sw.feedback_pixmap =
-		AllocPixmap(dsw, dsw->sw.drawing_area->core.width,
-			    dsw->sw.drawing_area->core.height);
-	if (dsw->sw.feedback_pixmap != None) {
-	    dsw->sw.feedback_width = dsw->sw.drawing_area->core.width;
-	    dsw->sw.feedback_height = dsw->sw.drawing_area->core.height;
-	}
-    }
-    if (dsw->sw.feedback_pixmap != None) {
-	XDPSSetContextDrawable(dsw->sw.context, dsw->sw.feedback_pixmap,
-			       dsw->sw.drawing_area->core.height);
-	SetPixmapOrigin(dsw);
-	XDPSCaptureContextGState(dsw->sw.context, &dsw->sw.feedback_gstate);
-    }
-}
-
-static void UpdateGStates(DPSScrolledWindowWidget dsw)
-{
-    /* Create graphics states for the window and backing pixmap in
-       the new context */
-    XDPSSetContextDrawable(dsw->sw.context, XtWindow(dsw->sw.drawing_area),
-			   dsw->sw.drawing_area->core.height);
-    DPSinitgraphics(dsw->sw.context);
-    if (dsw->sw.scale != 1.0) {
-	DPSscale(dsw->sw.context, dsw->sw.scale, dsw->sw.scale);
-    }
-
-    SetOriginAndGetTransform(dsw);
-    (void) XDPSCaptureContextGState(dsw->sw.context, &dsw->sw.window_gstate);
-    if (dsw->sw.backing_pixmap != None) {
-	XDPSSetContextDrawable(dsw->sw.context, dsw->sw.backing_pixmap,
-			       dsw->sw.pixmap_height);
-
-	SetPixmapOffset(dsw);
-	SetPixmapOrigin(dsw);
-	XDPSCaptureContextGState(dsw->sw.context, &dsw->sw.backing_gstate);
-    }
-}
-
-static void CheckPixmapSize(DPSScrolledWindowWidget dsw)
-{
-    Boolean freeIt = False;
-    int w = dsw->sw.pixmap_width, h = dsw->sw.pixmap_height;
-    Widget wid = dsw->sw.drawing_area;
-    unsigned int dBytes;
-
-    if (dsw->sw.pixmap_limit > 0) {
-	if (w * h > dsw->sw.pixmap_limit) freeIt = True;
-    } else if (dsw->sw.pixmap_limit < 0 &&
-	       w * h > dsw->sw.unscaled_width * dsw->sw.unscaled_height &&
-	       w * h > (int) wid->core.width * (int) wid->core.height) {
-	freeIt = True;
-    }
-
-    if (dsw->sw.absolute_pixmap_limit > 0) {
-	dBytes = (wid->core.depth + 7) / 8;	  /* Convert into bytes */
-	if (w * h * dBytes > (unsigned)dsw->sw.absolute_pixmap_limit * 1024) {
-	    freeIt = True;
-	}
-    }
-    if (freeIt) {
-	XFreePixmap(XtDisplay(dsw), dsw->sw.backing_pixmap);
-	dsw->sw.backing_pixmap = None;
-	dsw->sw.big_pixmap = False;
-	dsw->sw.pixmap_width = dsw->sw.pixmap_height = 0;
-	XDPSFreeContextGState(dsw->sw.context, dsw->sw.backing_gstate);
-    }
-}
-
-static void ResizeArea(DPSScrolledWindowWidget dsw)
-{
-    AbortDrawing(dsw);
-
-    /* Make everything dirty */
-    dsw->sw.num_dirty_areas = 1;
-    LEFT(dsw->sw.dirty_areas) = 0.0;
-    BOTTOM(dsw->sw.dirty_areas) = 0.0;
-    WIDTH(dsw->sw.dirty_areas) = dsw->sw.area_width;
-    HEIGHT(dsw->sw.dirty_areas) = dsw->sw.area_height;
-    
-    if (dsw->sw.big_pixmap) {
-	XFreePixmap(XtDisplay(dsw), dsw->sw.backing_pixmap);
-	dsw->sw.backing_pixmap = None;
-	dsw->sw.big_pixmap = False;
-	dsw->sw.pixmap_width = dsw->sw.pixmap_height = 0;
-	XDPSFreeContextGState(dsw->sw.context, dsw->sw.backing_gstate);
-    }
-
-    if (!dsw->sw.use_saved_scroll) {
-	/* Keep the upper left in the same place */
-	dsw->sw.scroll_win_x = 0;
-	dsw->sw.scroll_win_y = 0;
-	ConvertToPS(dsw, 0.0, 0.0,
-		    &dsw->sw.scroll_pic_x, &dsw->sw.scroll_pic_y);
-	dsw->sw.use_saved_scroll = True;
-    }
-
-    SetUpInitialInformation(dsw);
-}
-
-static void ClearDirtyAreas(DPSScrolledWindowWidget dsw)
-{
-    int i;
-    float *r;
-    int llx, lly, urx, ury;
-
-    for (i = 0; i < dsw->sw.num_dirty_areas; i++) {
-	r = dsw->sw.dirty_areas + (i * 4);
-	ConvertToX(dsw, LEFT(r), BOTTOM(r), &llx, &lly);
-	ConvertToX(dsw, RIGHT(r), TOP(r), &urx, &ury);
-	XClearArea(XtDisplay(dsw), XtWindow(dsw->sw.drawing_area),
-		  llx, ury, urx-llx, lly-ury, True);
-    }
-}
-
-static void HandleFeedbackPixmapChange(DPSScrolledWindowWidget dsw)
-{
-    if (!dsw->sw.use_feedback_pixmap) {
-	/* Get rid of one if we have it */
-	if (dsw->sw.feedback_pixmap != None) {
-	    XFreePixmap(XtDisplay(dsw), dsw->sw.feedback_pixmap);
-	    dsw->sw.feedback_pixmap = None;
-	    dsw->sw.feedback_width = dsw->sw.feedback_height = 0;
-	}
-    } else {
-	if (dsw->sw.doing_feedback) {
-	    float *r;
-
-	    CheckFeedbackPixmap(dsw);
-	    if (dsw->sw.feedback_pixmap == None) return;
-
-	    r = dsw->sw.prev_dirty_areas;
-	    ConvertToPS(dsw, 0 + DELTA,
-			dsw->sw.drawing_area->core.height - DELTA, r, r+1);
-	    ConvertToPS(dsw, dsw->sw.drawing_area->core.width - DELTA,
-			0 + DELTA, r+2, r+3);
-	    r[2] -= r[0];
-	    r[3] -= r[1];
-	    dsw->sw.num_prev_dirty_areas = 1;
-
-	    /* Initialize the feedback pixmap with a copy of the drawing */
-	    if (dsw->sw.backing_pixmap != None) {
-		CopyToFeedbackPixmap(dsw, dsw->sw.prev_dirty_areas,
-				     dsw->sw.num_prev_dirty_areas);
-	    } else {
-		CopyRectsToCurrentDrawing(dsw, dsw->sw.prev_dirty_areas,
-					  dsw->sw.num_prev_dirty_areas);
-		(void) ClipAndDraw(dsw, DSWFeedbackPixmap, DSWFinish, True);
-	    }
-	    if (dsw->sw.feedback_displayed) {
-		CallFeedbackCallback(dsw, dsw->sw.prev_dirty_areas,
-				     dsw->sw.num_prev_dirty_areas);
-	    }
-	}
-    }
-}	    
-
-/* ARGSUSED */
-
-static Boolean SetValues(
-    Widget old, Widget req, Widget new,
-    ArgList args,
-    Cardinal *num_args)
-{
-    DPSScrolledWindowWidget olddsw = (DPSScrolledWindowWidget) old;
-    DPSScrolledWindowWidget newdsw = (DPSScrolledWindowWidget) new;
-    Bool inited;
-
-#define NE(field) newdsw->sw.field != olddsw->sw.field
-#define DONT_CHANGE(field) \
-    if (NE(field)) newdsw->sw.field = olddsw->sw.field;
-
-    DONT_CHANGE(ctm_ptr);
-    DONT_CHANGE(inv_ctm_ptr);
-    DONT_CHANGE(backing_pixmap);
-    DONT_CHANGE(feedback_pixmap);
-    DONT_CHANGE(window_gstate);
-    DONT_CHANGE(backing_gstate);
-    DONT_CHANGE(feedback_gstate);
-    
-    if (NE(context)) {
-	DSWSetupCallbackRec setup;
-
-	if (newdsw->sw.context == NULL) {
-	    newdsw->sw.context = XDPSGetSharedContext(XtDisplay(newdsw));
-	} 
-	if (_XDPSTestComponentInitialized(newdsw->sw.context,
-					  dps_init_bit_dsw, &inited) ==
-	    dps_status_unregistered_context) {
-	    XDPSRegisterContext(newdsw->sw.context, False);
-	}
-	if (XtIsRealized(newdsw)) {
-	    setup.context = newdsw->sw.context;
-	    XtCallCallbackList((Widget) newdsw, newdsw->sw.setup_callback,
-			       (XtPointer) &setup);
-	}
-	UpdateGStates(newdsw);
-    }
-
-    /* Watch progress only works with pass-through event dispatching */
-
-    if (NE(watch_progress)) {
-	if (newdsw->sw.watch_progress &&
-	    XDPSSetEventDelivery(XtDisplay(newdsw), dps_event_query) !=
-		    dps_event_pass_through) newdsw->sw.watch_progress = False;
-    }
-
-    if (NE(application_scrolling) && !newdsw->sw.application_scrolling) {
-	XtVaSetValues(newdsw->sw.h_scroll, XmNmaximum, newdsw->sw.scroll_h_max,
-		      XmNvalue, newdsw->sw.scroll_h_value,
-		      XmNsliderSize, newdsw->sw.scroll_h_size, NULL);
-	XtVaSetValues(newdsw->sw.v_scroll, XmNmaximum, newdsw->sw.scroll_v_max,
-		      XmNvalue, newdsw->sw.scroll_v_value,
-		      XmNsliderSize, newdsw->sw.scroll_v_size, NULL);
-    }
-	    
-    if (newdsw->sw.doing_feedback) {
-	DONT_CHANGE(scale);
-	DONT_CHANGE(area_width);
-	DONT_CHANGE(area_height);
-    }
-
-    if (NE(pixmap_limit) || NE(absolute_pixmap_limit)) CheckPixmapSize(newdsw);
-
-    if (NE(area_width) || NE(area_height) || NE(scale)) ResizeArea(newdsw);
-
-    /* It's too confusing to let any of these things change in the middle
-       of drawing */
-
-    if (NE(use_backing_pixmap) || NE(watch_progress) ||
-	NE(minimal_drawing) || NE(document_size_pixmaps)) {
-	Boolean freeIt = False, setUp = False;
-	AbortOrFinish(newdsw);
-	if (NE(use_backing_pixmap)) {
-	    if (newdsw->sw.use_backing_pixmap) setUp = True;
-	    else freeIt = True;
-	}
-	if (NE(document_size_pixmaps)) {
-	    if (newdsw->sw.backing_pixmap != None) freeIt = True;
-	    setUp = True;
-	}
-	if (freeIt) FreeBackingPixmap(newdsw);
-	if (setUp) SetUpInitialPixmap(newdsw);
-    }
-
-    if (NE(dirty_areas)) {
-	float *r = newdsw->sw.dirty_areas;
-	int n = newdsw->sw.num_dirty_areas;
-	DONT_CHANGE(dirty_areas);
-	DONT_CHANGE(num_dirty_areas);
-	AbortOrFinish(newdsw);
-	AddRectsToDirtyArea(newdsw, r, n);
-	if (newdsw->sw.watch_progress || newdsw->sw.backing_pixmap == None) {
-	    ClearDirtyAreas(newdsw);
-	    newdsw->sw.drawing_stage = DSWStart;
-	} else {
-	    AddUserSpaceRectsToPending(newdsw, r, n);
-	    StartDrawing(newdsw);
-	}
-    }
-
-    if (NE(use_feedback_pixmap)) HandleFeedbackPixmapChange(newdsw);
-
-    return False;
-#undef DONT_CHANGE
-}
-
-static XtGeometryResult GeometryManager(
-    Widget w,
-    XtWidgetGeometry *desired, XtWidgetGeometry *allowed)
-{
-    /* Pass geometry requests up to our parent */
-    return XtMakeGeometryRequest(XtParent(w), desired, allowed);
-}
-
-static XtGeometryResult QueryGeometry(
-    Widget w,
-    XtWidgetGeometry *desired, XtWidgetGeometry *allowed)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-
-    /* Pass geometry requests down to our child */
-    return XtQueryGeometry(dsw->sw.scrolled_window, desired, allowed);
-}
-
-static void CopyToFeedbackPixmap(
-    DPSScrolledWindowWidget dsw,
-    float *rects,
-    int n)
-{
-    int llx, lly, urx, ury;
-    int dx, dy;
-    int i;
-    float *r;
-
-    ComputeOffsets(dsw, &dx, &dy);
-
-    for (i = 0; i < n; i++) {
-	r = rects + (i * 4);
-	ConvertToX(dsw, LEFT(r), BOTTOM(r), &llx, &lly);
-	ConvertToX(dsw, RIGHT(r), TOP(r), &urx, &ury);
-
-	XCopyArea(XtDisplay(dsw), dsw->sw.backing_pixmap,
-		  dsw->sw.feedback_pixmap, dsw->sw.no_ge_gc,
-		  llx+dx-1, ury+dy-1, urx-llx+2, lly-ury+2, llx-1, ury-1);
-    }
-}
-
-static void CallFeedbackCallback(
-    DPSScrolledWindowWidget dsw,
-    float *r,
-    int n)
-{
-    DSWFeedbackCallbackRec f;
-
-    f.start_feedback_data = dsw->sw.start_feedback_data;
-    f.continue_feedback_data = dsw->sw.continue_feedback_data;
-    if (dsw->sw.feedback_pixmap == None) {
-	f.type = DSWWindow;
-	f.drawable = XtWindow(dsw->sw.drawing_area);
-	f.gstate = dsw->sw.window_gstate;
-    } else {
-	f.type = DSWFeedbackPixmap;
-	f.drawable = dsw->sw.feedback_pixmap;
-	f.gstate = dsw->sw.feedback_gstate;
-    }
-    f.context = dsw->sw.context;
-    f.dirty_rects = r;
-    f.dirty_count = n;
-
-    XDPSSetContextGState(dsw->sw.context, f.gstate);
-    _DPSSWSetRectViewClip(dsw->sw.context, r, n * 4);
-    XtCallCallbackList((Widget) dsw, dsw->sw.feedback_callback,
-		       (XtPointer) &f);
-    DPSWaitContext(dsw->sw.context);
-}
-
-static void SetScale(
-    Widget w,
-    double scale,
-    long fixedX, long fixedY)
-{
-    float psX, psY;
-
-    ConvertToPS((DPSScrolledWindowWidget) w, (float) fixedX, (float) fixedY,
-		&psX, &psY);
-    SetScaleAndScroll(w, scale, psX, psY, fixedX, fixedY);
-}
-
-void DSWSetScale(
-    Widget w,
-    double scale,
-    long fixedX, long fixedY)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.set_scale) (w, scale, fixedX, fixedY);
-}
-
-static void ScrollPoint(
-    Widget w,
-    double psX, double psY,
-    long xX, long xY)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-
-    if (!XtIsRealized(w)) {
-	dsw->sw.use_saved_scroll = True;
-	dsw->sw.scroll_pic_x = psX;
-	dsw->sw.scroll_pic_y = psY;
-	dsw->sw.scroll_win_x = xX;
-	dsw->sw.scroll_win_y = xY;
-	return;
-    } else {
-	SetDrawingAreaPosition(dsw, psX, psY, xX, xY, False);
-	ScrollMoved(dsw);
-    }
-}
-
-void DSWScrollPoint(
-    Widget w,
-    double psX, double psY,
-    long xX, long xY)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.scroll_point) (w, psX, psY, xX, xY);
-}
-
-static void ScrollBy(Widget w, long dx, long dy)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    int value;
-
-    if (dx == 0 && dy == 0) return;
-
-    if (!XtIsRealized(w) && dsw->sw.use_saved_scroll) {
-	dsw->sw.scroll_win_x += dx;
-	dsw->sw.scroll_win_y += dy;
-    } else {
-	value = dsw->sw.scroll_h_value + dx;
-
-	if (value < 0) value = 0;
-	else if (value > dsw->sw.scroll_h_max - dsw->sw.scroll_h_size) {
-	    value = dsw->sw.scroll_h_max - dsw->sw.scroll_h_size;
-	}
-	dsw->sw.scroll_h_value = value;
-
-	if (!dsw->sw.application_scrolling) {
-	    XtVaSetValues(dsw->sw.h_scroll, XmNvalue, value, NULL);
-	}
-
-	value = dsw->sw.scroll_v_value + dy;
-
-	if (value < 0) value = 0;
-	else if (value > dsw->sw.scroll_v_max - dsw->sw.scroll_v_size) {
-	    value = dsw->sw.scroll_v_max - dsw->sw.scroll_v_size;
-	}
-	dsw->sw.scroll_v_value = value;
-
-	if (!dsw->sw.application_scrolling) {
-	    XtVaSetValues(dsw->sw.v_scroll, XmNvalue, value, NULL);
-	}
-
-	ScrollMoved(dsw);
-    }
-}
-
-void DSWScrollBy(Widget w, long dx, long dy)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.scroll_by) (w, dx, dy);
-}
-
-static void ScrollTo(Widget w, long x, long y)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    int max, size;
-
-    if (XtIsRealized(w)) {
-	if (x < 0) x = 0;
-	else if (x > dsw->sw.scroll_h_max - dsw->sw.scroll_h_size) {
-	    x = dsw->sw.scroll_h_max - dsw->sw.scroll_h_size;
-	}
-	dsw->sw.scroll_h_value = x;
-
-	if (y < 0) y = 0;
-	else if (y > dsw->sw.scroll_v_max - dsw->sw.scroll_v_size) {
-	    y = dsw->sw.scroll_v_max - dsw->sw.scroll_v_size;
-	}
-	dsw->sw.scroll_v_value = y;
-
-	if (!dsw->sw.application_scrolling) {
-	    XtVaSetValues(dsw->sw.h_scroll, XmNvalue, x, NULL);
-	    XtVaSetValues(dsw->sw.v_scroll, XmNvalue, y, NULL);
-	}
-
-	ScrollMoved(dsw);
-    }
-}
-
-void DSWScrollTo(Widget w, long x, long y)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.scroll_to) (w, x, y);
-}
-
-static void SetScaleAndScroll(
-    Widget w,
-    double scale,
-    double psX, double psY,
-    long xX, long xY)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    Arg arg;
-    union {
-	int i;
-	float f;
-    } kludge;
-
-    dsw->sw.use_saved_scroll = True;
-    dsw->sw.scroll_pic_x = psX;
-    dsw->sw.scroll_pic_y = psY;
-    dsw->sw.scroll_win_x = xX;
-    dsw->sw.scroll_win_y = xY;
-
-    kludge.f = scale;
-    arg.name = XtNscale;
-    if (sizeof(float) > sizeof(XtArgVal)) arg.value = (XtArgVal) &kludge.f;
-    else arg.value = (XtArgVal) kludge.i;
-    XtSetValues(w, &arg, 1);
-}
-
-void DSWSetScaleAndScroll(
-    Widget w,
-    double scale,
-    double psX, double psY,
-    long xX, long xY)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.set_scale_and_scroll) (w, scale, psX, psY, xX, xY);
-}
-
-static void ConvertXToPS(
-    Widget w,
-    long xX, long xY,
-    float *psX, float *psY)
-{
-    ConvertToPS((DPSScrolledWindowWidget) w, (float) xX, (float) xY, psX, psY);
-}
-
-void DSWConvertXToPS(
-    Widget w,
-    long xX, long xY,
-    float *psX, float *psY)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.convert_x_to_ps) (w, xX, xY, psX, psY);
-}
-
-static void ConvertPSToX(
-    Widget w,
-    double psX, double psY,
-    int *xX, int *xY)
-{
-    ConvertToX((DPSScrolledWindowWidget) w, psX, psY, xX, xY);
-}
-
-void DSWConvertPSToX(
-    Widget w,
-    double psX, double psY,
-    int *xX, int *xY)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.convert_ps_to_x) (w, psX, psY, xX, xY);
-}
-
-static void AddToDirtyArea(
-    Widget w,
-    float *rect,
-    long n)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-
-    if (n == 1 && rect[0] == 0 && rect[1] == 0 &&
-	rect[2] == -1 && rect[2] == -1) {
-	rect[2] = dsw->sw.area_width;
-	rect[3] = dsw->sw.area_height;
-    }
-
-    XtVaSetValues(w, XtNdirtyAreas, rect, XtNnumDirtyAreas, n, NULL);
-}
-
-void DSWAddToDirtyArea(
-    Widget w,
-    float *rect,
-    long n)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.add_to_dirty_area) (w, rect, n);
-}
-
-static Boolean TakeFeedbackPixmap(
-    Widget w,
-    Pixmap *p,
-    int *width, int *height, int *depth,
-    Screen **screen)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    
-    if (dsw->sw.doing_feedback) return False;
-
-    *p = dsw->sw.feedback_pixmap;
-    if (*p == None) {
-	*width = *height = *depth;
-	*screen = NULL;
-	return True;
-    }
-
-    *width = dsw->sw.feedback_width;
-    *height = dsw->sw.feedback_height;
-    *depth = dsw->sw.drawing_area->core.depth;
-    *screen = dsw->core.screen;
-
-    dsw->sw.feedback_pixmap = None;
-    dsw->sw.feedback_width = dsw->sw.feedback_height = 0;
-    return True;
-}
-
-Boolean DSWTakeFeedbackPixmap(
-    Widget w,
-    Pixmap *p,
-    int *width, int *height, int *depth,
-    Screen **screen)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    return (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-	    sw_class.take_feedback_pixmap) (w, p, width, height,
-					    depth, screen);
-}
-
-static void StartFeedbackDrawing(
-    Widget w,
-    XtPointer start_feedback_data)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    float *r;
-
-    FinishDrawing(dsw);
-    CheckFeedbackPixmap(dsw);
-    if (dsw->sw.feedback_pixmap != None) {
-	/* Initialize the feedback pixmap with a copy of the drawing */
-	GrowRectList(&dsw->sw.prev_dirty_areas, &dsw->sw.prev_dirty_areas_size,
-		     0, 1, 1);
-	r = dsw->sw.prev_dirty_areas;
-	ConvertToPS(dsw, 0 + DELTA, dsw->sw.drawing_area->core.height - DELTA,
-		    r, r+1);
-	ConvertToPS(dsw, dsw->sw.drawing_area->core.width - DELTA, 0 + DELTA,
-		    r+2, r+3);
-	r[2] -= r[0];
-	r[3] -= r[1];
-	dsw->sw.num_prev_dirty_areas = 1;
-
-	if (dsw->sw.backing_pixmap != None) {
-	    CopyToFeedbackPixmap(dsw, dsw->sw.prev_dirty_areas,
-				 dsw->sw.num_prev_dirty_areas);
-	} else {
-	    CopyRectsToCurrentDrawing(dsw, dsw->sw.prev_dirty_areas,
-				      dsw->sw.num_prev_dirty_areas);
-	    (void) ClipAndDraw(dsw, DSWFeedbackPixmap, DSWFinish, True);
-	}
-    }
-    dsw->sw.num_prev_dirty_areas = 0;
-    dsw->sw.doing_feedback = True;
-    dsw->sw.start_feedback_data = start_feedback_data;
-}
-
-void DSWStartFeedbackDrawing(
-    Widget w,
-    XtPointer start_feedback_data)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.start_feedback_drawing) (w, start_feedback_data);
-}
-
-static void EndFeedbackDrawing(
-    Widget w,
-    int restore)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-
-    if (restore) {
-	if (dsw->sw.backing_pixmap != None) {
-	    UpdateWindowFromBackingPixmap(dsw, dsw->sw.prev_dirty_areas,
-					  dsw->sw.num_prev_dirty_areas);
-	} else {
-	    CopyRectsToCurrentDrawing(dsw, dsw->sw.prev_dirty_areas,
-				      dsw->sw.num_prev_dirty_areas);
-	    (void) ClipAndDraw(dsw, DSWWindow, DSWFinish, True);
-	}
-    }
-    if (dsw->sw.feedback_gstate != 0) {
-	XDPSFreeContextGState(dsw->sw.context, dsw->sw.feedback_gstate);
-    }
-    dsw->sw.doing_feedback = dsw->sw.feedback_displayed = False;
-}
-
-void DSWEndFeedbackDrawing(
-    Widget w,
-    Bool restore)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.end_feedback_drawing) (w, restore);
-}
-
-static void SetFeedbackDirtyArea(
-    Widget w,
-    float *rects,
-    int count,
-    XtPointer continue_feedback_data)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    int i;
-    float *r;
-
-    for (i = 0; i < count; i++) {
-	r = rects + (i * 4);
-	if (WIDTH(r) < 0) {
-	    LEFT(r) += WIDTH(r);
-	    WIDTH(r) = -WIDTH(r);
-	}
-	if (HEIGHT(r) < 0) {
-	    BOTTOM(r) += HEIGHT(r);
-	    HEIGHT(r) = -HEIGHT(r);
-	}
-    }
-
-    if (dsw->sw.backing_pixmap != None) {
-	if (dsw->sw.feedback_pixmap != None) {
-	    CopyToFeedbackPixmap(dsw, dsw->sw.prev_dirty_areas,
-				 dsw->sw.num_prev_dirty_areas);
-	} else {
-	    UpdateWindowFromBackingPixmap(dsw, dsw->sw.prev_dirty_areas,
-					  dsw->sw.num_prev_dirty_areas);
-	}
-    } else {
-	CopyRectsToCurrentDrawing(dsw, dsw->sw.prev_dirty_areas,
-				  dsw->sw.num_prev_dirty_areas);
-	(void) ClipAndDraw(dsw, (dsw->sw.feedback_pixmap == None ?
-				 DSWWindow : DSWFeedbackPixmap),
-			   DSWFinish, True);
-    }
-    dsw->sw.continue_feedback_data = continue_feedback_data;
-    CallFeedbackCallback(dsw, rects, count);
-
-    if (dsw->sw.feedback_pixmap != None) {
-	CopyRectsToDirtyArea(dsw, dsw->sw.prev_dirty_areas,
-			     dsw->sw.num_prev_dirty_areas);
-	AddRectsToDirtyArea(dsw, rects, count);
-	SimplifyRects(dsw->sw.dirty_areas, &dsw->sw.num_dirty_areas);
-	UpdateWindowFromFeedbackPixmap(dsw, dsw->sw.dirty_areas,
-				       dsw->sw.num_dirty_areas);
-	dsw->sw.num_dirty_areas = 0;
-    }
-    CopyRectsToPrevDirtyArea(dsw, rects, count);
-    dsw->sw.feedback_displayed = True;
-}
-
-void DSWSetFeedbackDirtyArea(
-    Widget w,
-    float *rects,
-    int count,
-    XtPointer continue_feedback_data)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.set_feedback_dirty_area) (w, rects, count,
-					continue_feedback_data);
-}
-
-static void FinishPendingDrawing(Widget w)
-{
-    FinishDrawing((DPSScrolledWindowWidget) w);
-}
-
-void DSWFinishPendingDrawing(Widget w)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.finish_pending_drawing) (w);
-}
-
-static void AbortPendingDrawing(Widget w)
-{
-    AbortDrawing((DPSScrolledWindowWidget) w);
-}
-
-void DSWAbortPendingDrawing(Widget w)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.abort_pending_drawing) (w);
-}
-
-static void UpdateDrawing(
-    Widget w,
-    float *rects,
-    int count)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    int i;
-    float *r;
-    int llx, lly, urx, ury;
-    int dx, dy;
-
-    if (dsw->sw.backing_pixmap == None) {
-	AddToDirtyArea(w, rects, count);
-	return;
-    }
-
-    ComputeOffsets(dsw, &dx, &dy);
-
-    for (i = 0; i < count; i++) {
-	r = rects + (i * 4);
-	ConvertToX(dsw, LEFT(r), BOTTOM(r), &llx, &lly);
-	ConvertToX(dsw, RIGHT(r), TOP(r), &urx, &ury);
-	XCopyArea(XtDisplay(dsw), XtWindow(dsw->sw.drawing_area),
-		  dsw->sw.backing_pixmap, dsw->sw.no_ge_gc,
-		  llx-1, ury-1, urx-llx+2, lly-ury+2, llx+dx-1, ury+dy-1);
-    }
-}
-
-void DSWUpdateDrawing(
-    Widget w,
-    float *rects,
-    int count)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.update_drawing) (w, rects, count);
-}
-
-static void GetScrollInfo(
-    Widget w,
-    int *h_value, int *h_size, int *h_max, int *v_value, int *v_size, int *v_max)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-
-    if (h_value != NULL) *h_value = dsw->sw.scroll_h_value;
-    if (h_size != NULL) *h_size = dsw->sw.scroll_h_size;
-    if (h_max != NULL) *h_max = dsw->sw.scroll_h_max;
-    if (v_value != NULL) *v_value = dsw->sw.scroll_v_value;
-    if (v_size != NULL) *v_size = dsw->sw.scroll_v_size;
-    if (v_max != NULL) *v_max = dsw->sw.scroll_v_max;
-}
-
-void DSWGetScrollInfo(
-    Widget w,
-    int *h_value, int *h_size, int *h_max, int *v_value, int *v_size, int *v_max)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.get_scroll_info) (w, h_value, h_size, h_max,
-				v_value, v_size, v_max);
-}
-
-static void GetDrawingInfo(
-    Widget w,
-    DSWDrawableType *type,
-    Drawable *drawable,
-    DPSGState *gstate,
-    DPSContext *context)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-
-    if (dsw->sw.backing_pixmap != None) {
-	*type = DSWBackingPixmap;
-	*drawable = dsw->sw.backing_pixmap;
-	*gstate = dsw->sw.backing_gstate;
-    } else {
-	*type = DSWWindow;
-	*drawable = XtWindow(dsw->sw.drawing_area);
-	*gstate = dsw->sw.window_gstate;
-    }
-    *context = dsw->sw.context;
-}
-
-void DSWGetDrawingInfo(
-    Widget w,
-    DSWDrawableType *type,
-    Drawable *drawable,
-    DPSGState *gstate,
-    DPSContext *context)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-     sw_class.get_drawing_info) (w, type, drawable, gstate, context);
-}
-
-static Boolean GiveFeedbackPixmap(
-    Widget w,
-    Pixmap p,
-    int width, int height, int depth,
-    Screen *screen)
-{
-    DPSScrolledWindowWidget dsw = (DPSScrolledWindowWidget) w;
-    
-    if ((unsigned) depth != dsw->sw.drawing_area->core.depth
-     || screen != dsw->core.screen
-     || dsw->sw.feedback_pixmap != None) return False;
-
-    dsw->sw.feedback_pixmap = p;
-    dsw->sw.feedback_width = width;
-    dsw->sw.feedback_height = height;
-
-    return True;
-}
-
-Boolean DSWGiveFeedbackPixmap(
-    Widget w,
-    Pixmap p,
-    int width, int height, int depth,
-    Screen *screen)
-{
-    XtCheckSubclass(w, dpsScrolledWindowWidgetClass, NULL);
-
-    return (*((DPSScrolledWindowWidgetClass) XtClass(w))->
-	    sw_class.give_feedback_pixmap) (w, p, width, height,
-					    depth, screen);
-}
-
-static void ConvertToX(
-    DPSScrolledWindowWidget dsw,
-    float psX,
-    float psY,
-    int *xX,
-    int *xY)
-{
-    *xX = dsw->sw.ctm[0] * psX + dsw->sw.ctm[2] * psY + dsw->sw.ctm[4] +
-	    dsw->sw.x_offset + 0.5;
-    *xY = dsw->sw.ctm[1] * psX + dsw->sw.ctm[3] * psY + dsw->sw.ctm[5] +
-	    dsw->sw.y_offset + 0.5;
-}
-
-static void ConvertToPS(
-    DPSScrolledWindowWidget dsw,
-    float xX, float xY,
-    float *psX, float *psY)
-{
-    xX -= dsw->sw.x_offset;
-    xY -= dsw->sw.y_offset;
-
-    *psX = dsw->sw.inv_ctm[0] * xX + dsw->sw.inv_ctm[2] * xY +
-	    dsw->sw.inv_ctm[4];
-    *psY = dsw->sw.inv_ctm[1] * xX + dsw->sw.inv_ctm[3] * xY +
-	    dsw->sw.inv_ctm[5];
-}
-
-static void ConvertToOrigPS(
-    DPSScrolledWindowWidget dsw,
-    int xX, int xY,
-    float *psX, float *psY)
-{
-    xX -= dsw->sw.x_offset;
-    xY -= dsw->sw.y_offset;
-
-    *psX = dsw->sw.orig_inv_ctm[0] * xX + dsw->sw.orig_inv_ctm[2] * xY +
-	    dsw->sw.orig_inv_ctm[4];
-    *psY = dsw->sw.orig_inv_ctm[1] * xX + dsw->sw.orig_inv_ctm[3] * xY +
-	    dsw->sw.orig_inv_ctm[5];
-}