/**
* Clip all segments at screen to make sure we don't have to render huge coordinates. This is
* especially important for fill the GeneralPath.
*/
private void addClippedSegments() {
geogebra.common.awt.GRectangle viewRect =
AwtFactory.prototype.newRectangle(0, 0, view.getWidth(), view.getHeight());
MyPoint curP = null, prevP;
int size = pathPoints.size();
for (int i = 0; i < size; i++) {
prevP = curP;
curP = pathPoints.get(i);
if (!curP.getLineTo() || prevP == null) {
// moveTo point, make sure it is only slightly outside screen
geogebra.common.awt.GPoint2D p = getPointCloseToScreen(curP.getX(), curP.getY());
addToGeneralPath(p, false);
} else {
// clip line at screen
addClippedLine(prevP, curP, viewRect);
}
}
if (needClosePath) {
// line from last point to first point
addClippedLine(curP, pathPoints.get(0), viewRect);
gp.closePath();
}
}
private void addToGeneralPath(geogebra.common.awt.GPoint2D q, boolean lineTo) {
geogebra.common.awt.GPoint2D p = gp.getCurrentPoint();
if (p != null && p.distance(q) < TOLERANCE) {
return;
}
if (lineTo && p != null) {
try {
gp.lineTo((float) q.getX(), (float) q.getY());
} catch (Exception e) {
gp.moveTo((float) q.getX(), (float) q.getY());
}
} else {
gp.moveTo((float) q.getX(), (float) q.getY());
}
}
private void addSimpleSegments() {
int size = pathPoints.size();
for (int i = 0; i < size; i++) {
MyPoint curP = pathPoints.get(i);
addToGeneralPath(curP, curP.getLineTo());
}
if (needClosePath) gp.closePath();
}
/** Clears all points and resets internal variables */
public final void reset() {
pathPoints.clear();
gp.reset();
// bounds.setBounds(0,0,0,0);
bounds = null;
largestCoord = 0;
needClosePath = false;
}
/** @return this as GeneralPath */
public geogebra.common.awt.GGeneralPath getGeneralPath() {
if (pathPoints.size() == 0) return gp;
gp.reset();
if (largestCoord < MAX_COORD_VALUE) {
addSimpleSegments();
} else {
addClippedSegments();
}
// clear pathPoints to free up memory
pathPoints.clear();
return gp;
}
