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diff --git a/tkblt/generic/tkbltGrMarkerPolygon.C b/tkblt/generic/tkbltGrMarkerPolygon.C
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+/*
+ * Smithsonian Astrophysical Observatory, Cambridge, MA, USA
+ * This code has been modified under the terms listed below and is made
+ * available under the same terms.
+ */
+
+/*
+ * Copyright 1993-2004 George A Howlett.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+
+#include "tkbltGraph.h"
+#include "tkbltGrMarkerPolygon.h"
+#include "tkbltGrMarkerOption.h"
+#include "tkbltGrMisc.h"
+#include "tkbltGrDef.h"
+#include "tkbltConfig.h"
+#include "tkbltGrPSOutput.h"
+
+using namespace Blt;
+
+static Tk_OptionSpec optionSpecs[] = {
+ {TK_OPTION_CUSTOM, "-bindtags", "bindTags", "BindTags",
+ "Polygon all", -1, Tk_Offset(PolygonMarkerOptions, tags),
+ TK_OPTION_NULL_OK, &listObjOption, 0},
+ {TK_OPTION_CUSTOM, "-cap", "cap", "Cap",
+ "butt", -1, Tk_Offset(PolygonMarkerOptions, capStyle),
+ 0, &capStyleObjOption, 0},
+ {TK_OPTION_CUSTOM, "-coords", "coords", "Coords",
+ NULL, -1, Tk_Offset(PolygonMarkerOptions, worldPts),
+ TK_OPTION_NULL_OK, &coordsObjOption, 0},
+ {TK_OPTION_CUSTOM, "-dashes", "dashes", "Dashes",
+ NULL, -1, Tk_Offset(PolygonMarkerOptions, dashes),
+ TK_OPTION_NULL_OK, &dashesObjOption, 0},
+ {TK_OPTION_STRING, "-element", "element", "Element",
+ NULL, -1, Tk_Offset(PolygonMarkerOptions, elemName),
+ TK_OPTION_NULL_OK, NULL, 0},
+ {TK_OPTION_COLOR, "-fill", "fill", "Fill",
+ NULL, -1, Tk_Offset(PolygonMarkerOptions, fill),
+ TK_OPTION_NULL_OK, NULL, 0},
+ {TK_OPTION_CUSTOM, "-join", "join", "Join",
+ "miter", -1, Tk_Offset(PolygonMarkerOptions, joinStyle),
+ 0, &joinStyleObjOption, 0},
+ {TK_OPTION_PIXELS, "-linewidth", "lineWidth", "LineWidth",
+ "1", -1, Tk_Offset(PolygonMarkerOptions, lineWidth), 0, NULL, 0},
+ {TK_OPTION_BOOLEAN, "-hide", "hide", "Hide",
+ "no", -1, Tk_Offset(PolygonMarkerOptions, hide), 0, NULL, 0},
+ {TK_OPTION_CUSTOM, "-mapx", "mapX", "MapX",
+ "x", -1, Tk_Offset(PolygonMarkerOptions, xAxis), 0, &xAxisObjOption, 0},
+ {TK_OPTION_CUSTOM, "-mapy", "mapY", "MapY",
+ "y", -1, Tk_Offset(PolygonMarkerOptions, yAxis), 0, &yAxisObjOption, 0},
+ {TK_OPTION_COLOR, "-outline", "outline", "Outline",
+ STD_NORMAL_FOREGROUND, -1, Tk_Offset(PolygonMarkerOptions, outline),
+ TK_OPTION_NULL_OK, NULL, 0},
+ {TK_OPTION_BOOLEAN, "-under", "under", "Under",
+ "no", -1, Tk_Offset(PolygonMarkerOptions, drawUnder), 0, NULL, CACHE},
+ {TK_OPTION_PIXELS, "-xoffset", "xOffset", "XOffset",
+ "0", -1, Tk_Offset(PolygonMarkerOptions, xOffset), 0, NULL, 0},
+ {TK_OPTION_PIXELS, "-yoffset", "yOffset", "YOffset",
+ "0", -1, Tk_Offset(PolygonMarkerOptions, yOffset), 0, NULL, 0},
+ {TK_OPTION_END, NULL, NULL, NULL, NULL, 0, -1, 0, 0, 0}
+};
+
+PolygonMarker::PolygonMarker(Graph* graphPtr, const char* name,
+ Tcl_HashEntry* hPtr)
+ : Marker(graphPtr, name, hPtr)
+{
+ ops_ = (PolygonMarkerOptions*)calloc(1, sizeof(PolygonMarkerOptions));
+ optionTable_ = Tk_CreateOptionTable(graphPtr->interp_, optionSpecs);
+
+ screenPts_ =NULL;
+ outlineGC_ =NULL;
+ fillGC_ =NULL;
+ fillPts_ =NULL;
+ nFillPts_ =0;
+ outlinePts_ =NULL;
+ nOutlinePts_ =0;
+}
+
+PolygonMarker::~PolygonMarker()
+{
+ if (fillGC_)
+ Tk_FreeGC(graphPtr_->display_, fillGC_);
+ if (outlineGC_)
+ graphPtr_->freePrivateGC(outlineGC_);
+ delete [] fillPts_;
+ delete [] outlinePts_;
+ delete [] screenPts_;
+}
+
+int PolygonMarker::configure()
+{
+ PolygonMarkerOptions* ops = (PolygonMarkerOptions*)ops_;
+
+ // outlineGC
+ unsigned long gcMask = (GCLineWidth | GCLineStyle);
+ XGCValues gcValues;
+ if (ops->outline) {
+ gcMask |= GCForeground;
+ gcValues.foreground = ops->outline->pixel;
+ }
+ gcMask |= (GCCapStyle | GCJoinStyle);
+ gcValues.cap_style = ops->capStyle;
+ gcValues.join_style = ops->joinStyle;
+ gcValues.line_style = LineSolid;
+ gcValues.dash_offset = 0;
+ gcValues.line_width = ops->lineWidth;
+ if (LineIsDashed(ops->dashes))
+ gcValues.line_style = LineOnOffDash;
+
+ GC newGC = graphPtr_->getPrivateGC(gcMask, &gcValues);
+ if (LineIsDashed(ops->dashes))
+ graphPtr_->setDashes(newGC, &ops->dashes);
+ if (outlineGC_)
+ graphPtr_->freePrivateGC(outlineGC_);
+ outlineGC_ = newGC;
+
+ // fillGC
+ gcMask = 0;
+ if (ops->fill) {
+ gcMask |= GCForeground;
+ gcValues.foreground = ops->fill->pixel;
+ }
+ newGC = Tk_GetGC(graphPtr_->tkwin_, gcMask, &gcValues);
+ if (fillGC_)
+ Tk_FreeGC(graphPtr_->display_, fillGC_);
+ fillGC_ = newGC;
+
+ return TCL_OK;
+}
+
+void PolygonMarker::draw(Drawable drawable)
+{
+ PolygonMarkerOptions* ops = (PolygonMarkerOptions*)ops_;
+
+ // fill region
+ if ((nFillPts_ > 0) && (ops->fill)) {
+ XPoint* points = new XPoint[nFillPts_];
+ if (!points)
+ return;
+
+ XPoint* dp = points;
+ for (Point2d *sp = fillPts_, *send = sp + nFillPts_; sp < send; sp++) {
+ dp->x = (short)sp->x;
+ dp->y = (short)sp->y;
+ dp++;
+ }
+
+ XFillPolygon(graphPtr_->display_, drawable, fillGC_, points,
+ nFillPts_, Complex, CoordModeOrigin);
+ delete [] points;
+ }
+
+ // outline
+ if ((nOutlinePts_ > 0) && (ops->lineWidth > 0) && (ops->outline))
+ graphPtr_->drawSegments(drawable, outlineGC_, outlinePts_, nOutlinePts_);
+}
+
+void PolygonMarker::map()
+{
+ PolygonMarkerOptions* ops = (PolygonMarkerOptions*)ops_;
+
+ if (outlinePts_) {
+ delete [] outlinePts_;
+ outlinePts_ = NULL;
+ nOutlinePts_ = 0;
+ }
+
+ if (fillPts_) {
+ delete [] fillPts_;
+ fillPts_ = NULL;
+ nFillPts_ = 0;
+ }
+
+ if (screenPts_) {
+ delete [] screenPts_;
+ screenPts_ = NULL;
+ }
+
+ if (!ops->worldPts || ops->worldPts->num < 3)
+ return;
+
+ // Allocate and fill a temporary array to hold the screen coordinates of
+ // the polygon.
+
+ int nScreenPts = ops->worldPts->num + 1;
+ Point2d* screenPts = new Point2d[nScreenPts + 1];
+ {
+ Point2d* dp = screenPts;
+ for (Point2d *sp = ops->worldPts->points, *send = sp + ops->worldPts->num;
+ sp < send; sp++) {
+ *dp = mapPoint(sp, ops->xAxis, ops->yAxis);
+ dp->x += ops->xOffset;
+ dp->y += ops->yOffset;
+ dp++;
+ }
+ *dp = screenPts[0];
+ }
+ Region2d extents;
+ graphPtr_->extents(&extents);
+
+ clipped_ = 1;
+ if (ops->fill) {
+ Point2d* lfillPts = new Point2d[nScreenPts * 3];
+ int n = polyRectClip(&extents, screenPts, ops->worldPts->num,lfillPts);
+ if (n < 3)
+ delete [] lfillPts;
+ else {
+ nFillPts_ = n;
+ fillPts_ = lfillPts;
+ clipped_ = 0;
+ }
+ }
+ if ((ops->outline) && (ops->lineWidth > 0)) {
+ // Generate line segments representing the polygon outline. The
+ // resulting outline may or may not be closed from viewport clipping.
+ Segment2d* outlinePts = new Segment2d[nScreenPts];
+ if (!outlinePts)
+ return;
+
+ // Note that this assumes that the point array contains an extra point
+ // that closes the polygon.
+ Segment2d* segPtr = outlinePts;
+ for (Point2d *sp=screenPts, *send=sp+(nScreenPts - 1); sp < send; sp++) {
+ segPtr->p = sp[0];
+ segPtr->q = sp[1];
+ if (lineRectClip(&extents, &segPtr->p, &segPtr->q)) {
+ segPtr++;
+ }
+ }
+ nOutlinePts_ = segPtr - outlinePts;
+ outlinePts_ = outlinePts;
+ if (nOutlinePts_ > 0)
+ clipped_ = 0;
+ }
+
+ screenPts_ = screenPts;
+}
+
+int PolygonMarker::pointIn(Point2d *samplePtr)
+{
+ PolygonMarkerOptions* ops = (PolygonMarkerOptions*)ops_;
+
+ if (ops->worldPts && (ops->worldPts->num >= 3) && screenPts_)
+ return pointInPolygon(samplePtr, screenPts_, ops->worldPts->num + 1);
+
+ return 0;
+}
+
+int PolygonMarker::regionIn(Region2d *extsPtr, int enclosed)
+{
+ PolygonMarkerOptions* ops = (PolygonMarkerOptions*)ops_;
+
+ if (ops->worldPts && (ops->worldPts->num >= 3) && screenPts_)
+ return regionInPolygon(extsPtr, screenPts_, ops->worldPts->num, enclosed);
+
+ return 0;
+}
+
+void PolygonMarker::print(PSOutput* psPtr)
+{
+ PolygonMarkerOptions* ops = (PolygonMarkerOptions*)ops_;
+
+ if (ops->fill) {
+ psPtr->printPolyline(fillPts_, nFillPts_);
+ psPtr->setForeground(ops->fill);
+ psPtr->append("fill\n");
+ }
+
+ if ((ops->lineWidth > 0) && (ops->outline)) {
+ psPtr->setLineAttributes(ops->outline, ops->lineWidth, &ops->dashes,
+ ops->capStyle, ops->joinStyle);
+ psPtr->append("/DashesProc {} def\n");
+
+ psPtr->printSegments(outlinePts_, nOutlinePts_);
+ }
+}
+
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