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authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
commitb16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 (patch)
tree4361edef0d42d5bf5ac984ef72b4fac35426eae7 /nx-X11/lib/dpstk/DPSScrollW.c
parent0d5a83e986f39982c0924652a3662e60b1f23162 (diff)
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massive reduction of unneeded files
Diffstat (limited to 'nx-X11/lib/dpstk/DPSScrollW.c')
-rw-r--r--nx-X11/lib/dpstk/DPSScrollW.c3500
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diff --git a/nx-X11/lib/dpstk/DPSScrollW.c b/nx-X11/lib/dpstk/DPSScrollW.c
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- /*
- * 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];
-}