public void Insert(Span <PackRect> rects, Span <PackRect> dst, FreeRectChoiceHeuristic method)
{
var remaining = rects.Length;
var completed = new bool[rects.Length];
while (remaining > 0)
{
int bestScore1 = int.MaxValue;
int bestScore2 = int.MaxValue;
int bestRectIndex = -1;
PackRect bestNode = new PackRect();
for (int i = 0; i < rects.Length; ++i)
{
if (!completed[i])
{
int score1 = 0;
int score2 = 0;
PackRect newNode = ScoreRect((int)rects[i].Width, (int)rects[i].Height, method, ref score1, ref score2);
if (score1 < bestScore1 || (score1 == bestScore1 && score2 < bestScore2))
{
bestScore1 = score1;
bestScore2 = score2;
bestNode = newNode;
bestRectIndex = i;
}
}
}
if (bestRectIndex == -1)
{
return;
}
PlaceRect(bestNode);
completed[bestRectIndex] = true;
dst[bestRectIndex] = bestNode;
remaining--;
}
}
public PackRect Insert(int width, int height, FreeRectChoiceHeuristic method)
{
PackRect newNode = new PackRect();
int score1 = 0; // Unused in this function. We don't need to know the score after finding the position.
int score2 = 0;
switch (method)
{
case FreeRectChoiceHeuristic.RectBestShortSideFit: newNode = FindPositionForNewNodeBestShortSideFit(width, height, ref score1, ref score2); break;
case FreeRectChoiceHeuristic.RectBottomLeftRule: newNode = FindPositionForNewNodeBottomLeft(width, height, ref score1, ref score2); break;
case FreeRectChoiceHeuristic.RectContactPointRule: newNode = FindPositionForNewNodeContactPoint(width, height, ref score1); break;
case FreeRectChoiceHeuristic.RectBestLongSideFit: newNode = FindPositionForNewNodeBestLongSideFit(width, height, ref score2, ref score1); break;
case FreeRectChoiceHeuristic.RectBestAreaFit: newNode = FindPositionForNewNodeBestAreaFit(width, height, ref score1, ref score2); break;
}
if (newNode.Height == 0)
{
return(newNode);
}
int numRectanglesToProcess = _freeRectangles.Count;
for (int i = 0; i < numRectanglesToProcess; ++i)
{
if (SplitFreeNode(_freeRectangles[i], ref newNode))
{
_freeRectangles.RemoveAt(i);
--i;
--numRectanglesToProcess;
}
}
PruneFreeList();
_usedRectangles.Add(newNode);
return(newNode);
}
PackRect FindPositionForNewNodeBottomLeft(int width, int height, ref int bestY, ref int bestX)
{
PackRect bestNode = new PackRect();
//memset(bestNode, 0, sizeof(ImRect));
bestY = int.MaxValue;
for (int i = 0; i < _freeRectangles.Count; ++i)
{
// Try to place the rectangle in upright (non-flipped) orientation.
if (_freeRectangles[i].Width >= width && _freeRectangles[i].Height >= height)
{
int topSideY = (int)_freeRectangles[i].Y + height;
if (topSideY < bestY || (topSideY == bestY && _freeRectangles[i].X < bestX))
{
bestNode.X = _freeRectangles[i].X;
bestNode.Y = _freeRectangles[i].Y;
bestNode.Width = width;
bestNode.Height = height;
bestY = topSideY;
bestX = (int)_freeRectangles[i].X;
}
}
if (allowRotations && _freeRectangles[i].Width >= height && _freeRectangles[i].Height >= width)
{
int topSideY = (int)_freeRectangles[i].Y + width;
if (topSideY < bestY || (topSideY == bestY && _freeRectangles[i].X < bestX))
{
bestNode.X = _freeRectangles[i].X;
bestNode.Y = _freeRectangles[i].Y;
bestNode.Width = height;
bestNode.Height = width;
bestY = topSideY;
bestX = (int)_freeRectangles[i].X;
}
}
}
return(bestNode);
}
PackRect FindPositionForNewNodeContactPoint(int width, int height, ref int bestContactScore)
{
PackRect bestNode = new PackRect();
//memset(&bestNode, 0, sizeof(ImRect));
bestContactScore = -1;
for (int i = 0; i < _freeRectangles.Count; ++i)
{
// Try to place the rectangle in upright (non-flipped) orientation.
if (_freeRectangles[i].Width >= width && _freeRectangles[i].Height >= height)
{
int score = ContactPointScoreNode((int)_freeRectangles[i].X, (int)_freeRectangles[i].Y, width, height);
if (score > bestContactScore)
{
bestNode.X = (int)_freeRectangles[i].X;
bestNode.Y = (int)_freeRectangles[i].Y;
bestNode.Width = width;
bestNode.Height = height;
bestContactScore = score;
}
}
if (allowRotations && _freeRectangles[i].Width >= height && _freeRectangles[i].Height >= width)
{
int score = ContactPointScoreNode((int)_freeRectangles[i].X, (int)_freeRectangles[i].Y, height, width);
if (score > bestContactScore)
{
bestNode.X = (int)_freeRectangles[i].X;
bestNode.Y = (int)_freeRectangles[i].Y;
bestNode.Width = height;
bestNode.Height = width;
bestContactScore = score;
}
}
}
return(bestNode);
}
bool IsContainedIn(PackRect a, PackRect b)
{
return(a.X >= b.X && a.Y >= b.Y &&
a.X + a.Width <= b.X + b.Width &&
a.Y + a.Height <= b.Y + b.Height);
}
