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-rw-r--r--generic/Triangles.c58
1 files changed, 55 insertions, 3 deletions
diff --git a/generic/Triangles.c b/generic/Triangles.c
index 4b3b8bb..1565b5b 100644
--- a/generic/Triangles.c
+++ b/generic/Triangles.c
@@ -573,10 +573,62 @@ Pick(ZnItem item,
*
**********************************************************************************
*/
-static void
-PostScript(ZnItem item,
- ZnBool prepass)
+static int
+PostScript(ZnItem item,
+ ZnBool prepass,
+ ZnBBox *area)
{
+ ZnWInfo *wi = item->wi;
+ TrianglesItem tr = (TrianglesItem) item;
+ ZnPoint *points;
+ int i, num_points, last_color_index;
+ int edge;
+ ZnGradient **grads;
+ XColor *color = NULL;
+ double red, green, blue;
+ ZnBBox bbox;
+ char path[150];
+
+ points = tr->dev_points.strips->points;
+ num_points = tr->dev_points.strips->num_points;
+ ZnResetBBox(&bbox);
+ ZnAddPointsToBBox(&bbox, points, num_points);
+
+ grads = ZnListArray(tr->colors);
+ last_color_index = ZnListSize(tr->colors)-1;
+
+ Tcl_AppendResult(wi->interp,
+ "/ShadingDict <<\n /ShadingType 4\n /ColorSpace /DeviceRGB\n",
+ " /DataSource [", NULL);
+ for (i = 0; i < num_points; i++) {
+ if (i <= last_color_index) {
+ color = ZnGetGradientColor(grads[i], 0.0, NULL);
+ }
+ if (i < 3) {
+ edge = 0;
+ }
+ else if (ISCLEAR(tr->flags, FAN_BIT)) {
+ edge = 1;
+ }
+ else {
+ edge = 2;
+ }
+ red = ((double) (color->red >> 8)) / 255.0;
+ green = ((double) (color->green >> 8)) / 255.0;
+ blue = ((double) (color->blue >> 8)) / 255.0;
+
+ sprintf(path, "%d %.15g %.15g %.4g %.4g %.4g ",
+ edge, points[i].x, points[i].y, red, green, blue);
+ Tcl_AppendResult(wi->interp, path, NULL);
+ }
+ Tcl_AppendResult(wi->interp, "]\n>> def\n", NULL);
+ Tcl_AppendResult(wi->interp, "<<\n /PatternType 2\n /Shading ShadingDict\n>>\n", NULL);
+ Tcl_AppendResult(wi->interp, "matrix identmatrix makepattern setpattern\n", NULL);
+ sprintf(path, "%.15g %.15g %.15g %.15g rectfill\n", bbox.orig.x, bbox.orig.y,
+ bbox.corner.x - bbox.orig.x, bbox.corner.y - bbox.orig.y);
+ Tcl_AppendResult(wi->interp, path, NULL);
+
+ return TCL_OK;
}