From 96e9d04527dc17a2a4f8c2f7034c1c356ed5186e Mon Sep 17 00:00:00 2001
From: neoraider <devnull@localhost>
Date: Sun, 16 Sep 2007 20:59:04 +0000
Subject: zoomedit: C++ized Line & Rectangle

---
 Polygon.cpp | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

(limited to 'Polygon.cpp')

diff --git a/Polygon.cpp b/Polygon.cpp
index 05d06ca..9340135 100644
--- a/Polygon.cpp
+++ b/Polygon.cpp
@@ -38,11 +38,11 @@ int Polygon::quadrant(const Vertex &v) const {
 }
 
 bool Polygon::contains(const Vertex &v) const {
+  const Line d1(-1, -1, 1, 1);
+  const Line d2(-1, 1, 1, -1);
   int d = 0;
   int q, ql, q2;
-  LINE d1 = {Vertex(-1, -1), Vertex(1, 1)};
-  LINE d2 = {Vertex(-1, 1), Vertex(1, -1)};
-  LINE l;
+  Line l;
   Vertex v2;
   
   
@@ -73,11 +73,11 @@ bool Polygon::contains(const Vertex &v) const {
         d--;
         break;
       default:
-        l.v1 = ((it == begin()) ? back() : *(it-1)) - v;
-        l.v2 = v2;
+        l.setVertex1(((it == begin()) ? back() : *(it-1)) - v);
+        l.setVertex2(v2);
         
         if(q == 1 || q == 3) {
-          if(!(lineIntersection(&l, &d2, &v2) & INTERSECTION_LINE)) return false;
+          if(!(l.intersects(d2, &v2) & INTERSECTION_LINE)) return false;
           
           q2 = quadrant(v2);
           if(q2 == 0) return true;
@@ -86,7 +86,7 @@ bool Polygon::contains(const Vertex &v) const {
           else d += 2;
         }
         else {
-          if(!(lineIntersection(&l, &d1, &v2) & INTERSECTION_LINE)) return false;
+          if(!(l.intersects(d1, &v2) & INTERSECTION_LINE)) return false;
           
           q2 = quadrant(v2);
           if(q2 == 0) return true;
@@ -100,17 +100,17 @@ bool Polygon::contains(const Vertex &v) const {
   return (d != 0);
 }
 
-bool Polygon::intersects(const LINE *l) const {
-  LINE line;
+bool Polygon::intersects(const Line &l) const {
+  Line line;
   
   for(Polygon::const_iterator it = begin(); it != end(); it++) {
     Polygon::const_iterator it2 = it+1;
     if(it2 == end()) it2 = begin();
     
-    line.v1 = *it;
-    line.v2 = *it2;
+    line.setVertex1(*it);
+    line.setVertex2(*it2);
     
-    if(lineIntersection(l, &line, NULL) == INTERSECTION_SEGMENT_SEGMENT)
+    if(l.intersects(line, NULL) == INTERSECTION_SEGMENT_SEGMENT)
       return true;
   }
   
-- 
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