public ImagePackTreeNode insert(String imageID, Bitmap img)
{
//If not a leaf and both children are full
if (!IsLeaf)
{
ImagePackTreeNode newNode = children[0].insert(imageID, img);
if (newNode != null)
{
return(newNode);
}
return(children[1].insert(imageID, img));
}
else
{
//If there is already an image, return
if (this.imageID != null)
{
return(null);
}
Rectangle imageRect = new Rectangle(rc.Left, rc.Top, img.Width, img.Height);
imageRect.Width += imagePadding;
imageRect.Height += imagePadding;
//If the area is too small return
if (rc.Width < imageRect.Width || rc.Height < imageRect.Height)
{
return(null);
}
//If were just right accept
if (rc.Width == imageRect.Width && rc.Height == imageRect.Height)
{
this.imageID = imageID;
return(this);
}
//Otherwise gotta split this node and create some kids
this.children[0] = new ImagePackTreeNode(imagePadding);
this.children[1] = new ImagePackTreeNode(imagePadding);
int dw = rc.Width - imageRect.Width;
int dh = rc.Height - imageRect.Height;
if (dw > dh)
{
children[0].rc = new Rectangle(rc.Left, rc.Top, imageRect.Width, rc.Height);
children[1].rc = new Rectangle(rc.Left + imageRect.Width, rc.Top, rc.Width - imageRect.Width, rc.Height);
}
else
{
children[0].rc = new Rectangle(rc.Left, rc.Top, rc.Width, imageRect.Height);
children[1].rc = new Rectangle(rc.Left, rc.Top + imageRect.Height, rc.Width, rc.Height - imageRect.Height);
}
return(children[0].insert(imageID, img));
}
}
private void updateButton_Click(object sender, EventArgs e)
{
if (resizeImages.Checked)
{
foreach (BitmapEntry entry in images)
{
entry.resizeImage((int)resizeWidth.Value, (int)resizeHeight.Value);
}
}
int padding = (int)this.padding.Value;
var halfPadding = padding / 2;
ImagePackTreeNode imageInfo = new ImagePackTreeNode(new Size((int)widthText.Value, (int)heightText.Value), padding);
Bitmap atlas = new Bitmap((int)widthText.Value, (int)heightText.Value, PixelFormat.Format32bppArgb);
using (Graphics g = Graphics.FromImage(atlas))
{
foreach (BitmapEntry entry in images)
{
ImagePackTreeNode node = imageInfo.insert(entry.ImageFile, entry.Bitmap);
if (node != null)
{
//Center image
var size = entry.Bitmap.Size;
var imageLocationRect = new Rectangle(
node.LocationRect.X + halfPadding,
node.LocationRect.Y + halfPadding,
size.Width,
size.Height
);
g.DrawImage(entry.Bitmap, imageLocationRect);
entry.ImageLocation = imageLocationRect;
entry.ImageNodeLocation = node.LocationRect;
padFillColor(entry.Bitmap, g, halfPadding, node.LocationRect);
}
else
{
MessageBox.Show(this, String.Format("Ran out of room placing image {0}. Please increase image size.", entry.ImageFile), "Size Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
break;
}
}
}
if (PictureBox.Image != null)
{
PictureBox.Image.Dispose();
}
PictureBox.Image = atlas;
PictureBox.Size = atlas.Size;
}