1 files changed, 184 insertions, 0 deletions
diff --git a/kpdf/xpdf/splash/SplashPath.cpp b/kpdf/xpdf/splash/SplashPath.cpp
new file mode 100644
index 00000000..4a3c334c
--- /dev/null
+++ b/kpdf/xpdf/splash/SplashPath.cpp
@@ -0,0 +1,184 @@
+//========================================================================
+//
+// SplashPath.cpp
+//
+//========================================================================
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma implementation
+#endif
+
+#include <string.h>
+#include "gmem.h"
+#include "SplashErrorCodes.h"
+#include "SplashPath.h"
+
+//------------------------------------------------------------------------
+// SplashPath
+//------------------------------------------------------------------------
+
+// A path can be in three possible states:
+//
+// 1. no current point -- zero or more finished subpaths
+//    [curSubpath == length]
+//
+// 2. one point in subpath
+//    [curSubpath == length - 1]
+//
+// 3. open subpath with two or more points
+//    [curSubpath < length - 1]
+
+SplashPath::SplashPath() {
+  pts = NULL;
+  flags = NULL;
+  length = size = 0;
+  curSubpath = 0;
+  hints = NULL;
+  hintsLength = hintsSize = 0;
+}
+
+SplashPath::SplashPath(SplashPath *path) {
+  length = path->length;
+  size = path->size;
+  pts = (SplashPathPoint *)gmallocn(size, sizeof(SplashPathPoint));
+  flags = (Guchar *)gmallocn(size, sizeof(Guchar));
+  memcpy(pts, path->pts, length * sizeof(SplashPathPoint));
+  memcpy(flags, path->flags, length * sizeof(Guchar));
+  curSubpath = path->curSubpath;
+  if (path->hints) {
+    hintsLength = hintsSize = path->hintsLength;
+    hints = (SplashPathHint *)gmallocn(hintsSize, sizeof(SplashPathHint));
+    memcpy(hints, path->hints, hintsLength * sizeof(SplashPathHint));
+  } else {
+    hints = NULL;
+  }
+}
+
+SplashPath::~SplashPath() {
+  gfree(pts);
+  gfree(flags);
+  gfree(hints);
+}
+
+// Add space for <nPts> more points.
+void SplashPath::grow(int nPts) {
+  if (length + nPts > size) {
+    if (size == 0) {
+      size = 32;
+    }
+    while (size < length + nPts) {
+      size *= 2;
+    }
+    pts = (SplashPathPoint *)greallocn(pts, size, sizeof(SplashPathPoint));
+    flags = (Guchar *)greallocn(flags, size, sizeof(Guchar));
+  }
+}
+
+void SplashPath::append(SplashPath *path) {
+  int i;
+
+  curSubpath = length + path->curSubpath;
+  grow(path->length);
+  for (i = 0; i < path->length; ++i) {
+    pts[length] = path->pts[i];
+    flags[length] = path->flags[i];
+    ++length;
+  }
+}
+
+SplashError SplashPath::moveTo(SplashCoord x, SplashCoord y) {
+  if (onePointSubpath()) {
+    return splashErrBogusPath;
+  }
+  grow(1);
+  pts[length].x = x;
+  pts[length].y = y;
+  flags[length] = splashPathFirst | splashPathLast;
+  curSubpath = length++;
+  return splashOk;
+}
+
+SplashError SplashPath::lineTo(SplashCoord x, SplashCoord y) {
+  if (noCurrentPoint()) {
+    return splashErrNoCurPt;
+  }
+  flags[length-1] &= ~splashPathLast;
+  grow(1);
+  pts[length].x = x;
+  pts[length].y = y;
+  flags[length] = splashPathLast;
+  ++length;
+  return splashOk;
+}
+
+SplashError SplashPath::curveTo(SplashCoord x1, SplashCoord y1,
+				SplashCoord x2, SplashCoord y2,
+				SplashCoord x3, SplashCoord y3) {
+  if (noCurrentPoint()) {
+    return splashErrNoCurPt;
+  }
+  flags[length-1] &= ~splashPathLast;
+  grow(3);
+  pts[length].x = x1;
+  pts[length].y = y1;
+  flags[length] = splashPathCurve;
+  ++length;
+  pts[length].x = x2;
+  pts[length].y = y2;
+  flags[length] = splashPathCurve;
+  ++length;
+  pts[length].x = x3;
+  pts[length].y = y3;
+  flags[length] = splashPathLast;
+  ++length;
+  return splashOk;
+}
+
+SplashError SplashPath::close() {
+  if (noCurrentPoint()) {
+    return splashErrNoCurPt;
+  }
+  if (curSubpath == length - 1 ||
+      pts[length - 1].x != pts[curSubpath].x ||
+      pts[length - 1].y != pts[curSubpath].y) {
+    lineTo(pts[curSubpath].x, pts[curSubpath].y);
+  }
+  flags[curSubpath] |= splashPathClosed;
+  flags[length - 1] |= splashPathClosed;
+  curSubpath = length;
+  return splashOk;
+}
+
+void SplashPath::addStrokeAdjustHint(int ctrl0, int ctrl1,
+				     int firstPt, int lastPt) {
+  if (hintsLength == hintsSize) {
+    hintsSize = hintsLength ? 2 * hintsLength : 8;
+    hints = (SplashPathHint *)greallocn(hints, hintsSize,
+					sizeof(SplashPathHint));
+  }
+  hints[hintsLength].ctrl0 = ctrl0;
+  hints[hintsLength].ctrl1 = ctrl1;
+  hints[hintsLength].firstPt = firstPt;
+  hints[hintsLength].lastPt = lastPt;
+  ++hintsLength;
+}
+
+void SplashPath::offset(SplashCoord dx, SplashCoord dy) {
+  int i;
+
+  for (i = 0; i < length; ++i) {
+    pts[i].x += dx;
+    pts[i].y += dy;
+  }
+}
+
+GBool SplashPath::getCurPt(SplashCoord *x, SplashCoord *y) {
+  if (noCurrentPoint()) {
+    return gFalse;
+  }
+  *x = pts[length - 1].x;
+  *y = pts[length - 1].y;
+  return gTrue;
+}