/**
* Add rectangle to the buffer without any checking
*/
public void addRect(int x1, int y1, int x2, int y2)
{
int i = rect[0];
rect = MultiRectAreaOp.checkBufSize(rect, 4);
rect[i++] = x1;
rect[i++] = y1;
rect[i++] = x2;
rect[i++] = y2;
}
public void addLine(int[] points, int pointCount)
{
int bottomIndex = 0;
int pointIndex = 0;
int rectIndex = 0;
int pointX1 = 0;
int pointX2 = 0;
int bottomX1 = 0;
int bottomX2 = 0;
bool appendRect = false;
bool deleteRect = false;
int lastCount = bottomCount;
while (bottomIndex < lastCount || pointIndex < pointCount)
{
appendRect = false;
deleteRect = false;
if (bottomIndex < lastCount)
{
rectIndex = bottom[bottomIndex];
bottomX1 = rect[rectIndex];
bottomX2 = rect[rectIndex + 2];
}
else
{
appendRect = true;
}
if (pointIndex < pointCount)
{
pointX1 = points[pointIndex];
pointX2 = points[pointIndex + 1];
}
else
{
deleteRect = true;
}
if (!deleteRect && !appendRect)
{
if (pointX1 == bottomX1 && pointX2 == bottomX2)
{
rect[rectIndex + 3] = rect[rectIndex + 3] + 1;
pointIndex += 2;
bottomIndex++;
continue;
}
deleteRect = pointX2 >= bottomX1;
appendRect = pointX1 <= bottomX2;
}
if (deleteRect)
{
if (bottomIndex < bottomCount - 1)
{
java.lang.SystemJ.arraycopy(bottom, bottomIndex + 1, bottom, bottomIndex, bottomCount - bottomIndex - 1);
rectIndex -= 4;
}
bottomCount--;
lastCount--;
}
if (appendRect)
{
int i = rect[0];
bottom[bottomCount++] = i;
rect = MultiRectAreaOp.checkBufSize(rect, 4);
rect[i++] = pointX1;
rect[i++] = lineY;
rect[i++] = pointX2;
rect[i++] = lineY;
pointIndex += 2;
}
}
lineY++;
invalidate();
}