Added new triangulation tool, ability to snap to endpoints/intersections.

[architektonas] / src / circle.cpp

diff --git a/src/circle.cpp b/src/circle.cpp
index d8a2e5d61bda7faa31c349546a7b94c79d0771c1..093f53395834bd3472a05a3242ad148bd1cc8759 100644 (file)
--- a/src/circle.cpp
+++ b/src/circle.cpp
@@ -100,6 +100,9 @@ Circle::~Circle()
        if (snapToGrid)
                point = SnapPointToGrid(point);
 
+       if (snapPointIsValid)
+               point = snapPoint;
+
        draggingCenter = hitCenter;
        draggingEdge = hitCircle;
 
@@ -118,7 +121,7 @@ Circle::~Circle()
 }
 
 
-/*virtual*/ void Circle::PointerMoved(Vector point)
+/*virtual*/ bool Circle::PointerMoved(Vector point)
 {
        if (selectionInProgress)
        {
@@ -129,14 +132,21 @@ Circle::~Circle()
                else
                        state = OSInactive;
 
-               return;
+               return false;
        }
 
        // Hit test tells us what we hit (if anything) through boolean variables. It
        // also tells us whether or not the state changed.
        SaveHitState();
-       HitTest(point);
+       bool hovered = HitTest(point);
        needUpdate = HitStateChanged();
+
+       if (snapToGrid)
+               point = SnapPointToGrid(point);
+
+       if (snapPointIsValid)
+               point = snapPoint;
+
        objectWasDragged = (draggingEdge | draggingCenter);
 
        if (objectWasDragged)
@@ -149,6 +159,7 @@ Circle::~Circle()
 
        // Save this point so the rendering code knows where to draw the handle...
        dragPoint = point;
+       return hovered;
 }
 
 
@@ -185,7 +196,11 @@ the radius will be 5.0. By multiplying the length by the zoom factor, we align o
 pointed at length with our on screen length.
 */
        if ((length * Painter::zoom) < 8.0)
+       {
                hitCenter = true;
+               snapPoint = position;
+               snapPointIsValid = true;
+       }
 //wrong:       else if ((length < (radius + 2.0)) && (length > (radius - 2.0)))
 /*NB: The following should be identical to what we have down below, but it doesn't work out that way... :-P */
 //close, but no        else if (((length * Painter::zoom) < ((radius * Painter::zoom) + 2.0)) && ((length * Painter::zoom) > ((radius * Painter::zoom) - 2.0)))
@@ -253,7 +268,6 @@ same reference number.
 /*virtual*/ void Circle::Mirror(Point p1, Point p2)
 {
        Point c1 = Geometry::MirrorPointAroundLine(position, p1, p2);
-//     return new Circle(c1, radius);
        position = c1;
 }