void FindObjectExtents()
{
lbSubs.Items.Clear();
ObjectExtents.Clear();
Int32 objectSpacingX = (Int32)spacingX.Value;
Int32 objectSpacingY = (Int32)spacingY.Value;
if (!extractMultiple.Checked)
{
objectSpacingX = TargetBitmap.Width;
objectSpacingY = TargetBitmap.Height;
}
BitmapData bmpData = TargetBitmap.LockBits(new Rectangle(0, 0, TargetBitmap.Width, TargetBitmap.Height), ImageLockMode.ReadOnly, TargetBitmap.PixelFormat);
{
Int32 curX = 0, curY = 0;
while (curY < bmpData.Height)
{
while (curX < bmpData.Width)
{
Rectangle ext = ExtractExtentsFromArea(bmpData, curX, objectSpacingX, curY, objectSpacingY);
if (ext.Width > 0 && ext.Height > 0)
{
ExtractedObject eo = new ExtractedObject(
findInnerEdges.Checked ? ext : new Rectangle(curX, curY, objectSpacingX, objectSpacingY));
ObjectExtents.Add(eo);
lbSubs.Items.Add(eo);
}
curX += objectSpacingX;
}
curX = 0;
curY += objectSpacingY;
}
}
TargetBitmap.UnlockBits(bmpData);
foreach (ExtractedObject eo in ObjectExtents)
{
CreateTileSlices(eo);
}
}
void CreateTileSlices(ExtractedObject eo)
{
eo.slices.Clear();
// configure for TopLeft y default
Int32 curX = 0, curY = 0;
Int32 deltaX = Constants.TileSize, deltaY = Constants.TileSize;
IterationOp outer = cur => (cur < eo.bounds.Height),
inner = cur => (cur < eo.bounds.Width);
if (edgeBL.Checked || edgeBR.Checked)
{
curY = eo.bounds.Height - Constants.TileSize;
deltaY = -Constants.TileSize;
outer = cur => (cur > -Constants.TileSize);
}
if (edgeTR.Checked || edgeBR.Checked)
{
curX = eo.bounds.Width - Constants.TileSize;
deltaX = -Constants.TileSize;
inner = cur => (cur > -Constants.TileSize);
}
Int32 xReset = curX;
while (outer(curY))
{
while (inner(curX))
{
Rectangle sliceRect = new Rectangle(eo.bounds.Left + curX, eo.bounds.Top + curY, Constants.TileSize, Constants.TileSize);
eo.slices.Add(sliceRect);
curX += deltaX;
}
curX = xReset;
curY += deltaY;
}
}
