/// <summary>
/// Draws the image using the specified data and alignes the image using the
/// specified alignments within the specified bounds.
/// </summary>
/// <param name="g">The graphics to draw into.</param>
/// <param name="index">The index of the image to draw.</param>
/// <param name="destRect">The target bounds to draw into.</param>
/// <param name="srcRect">The bounds of the image part to draw</param>
/// <param name="horizontal">The horizontal alignment of the part image within the specified bounds.</param>
/// <param name="vertical">The vertical alignment of the part image within the specified bounds.</param>
/// <returns></returns>
public void Draw(Graphics g, int index, Rectangle destRect, Rectangle srcRect,
DrawingAlign horizontal, DrawingAlign vertical)
{
if (srcRect.IsEmpty)
srcRect = new Rectangle(0, 0, ImageSize.Width, ImageSize.Height);
if (srcRect.IsEmpty)
return;
Rectangle dest = destRect;
// If no stretching adjust destination bounds
if (vertical != DrawingAlign.Stretch)
{
bool update = true;
switch (vertical)
{
// to top
case DrawingAlign.Near:
dest.Height = srcRect.Height;
break;
// at bottom
case DrawingAlign.Far:
dest.Y = dest.Bottom - srcRect.Height;
break;
// center
case DrawingAlign.Center:
dest.Y += (dest.Height - srcRect.Height) / 2;
dest.Height = srcRect.Height;
break;
default:
update = false;
break;
}
// atjust rectangle
if (update)
{
Rectangle rt = dest;
dest.Intersect(destRect);
if (dest.Height > 0 && dest.Height != srcRect.Height)
{
srcRect.Y += dest.Y - rt.Y;
srcRect.Height = Math.Min(dest.Height, srcRect.Height);
}
}
}
// Calculate real destination bounds if no stretching
if (horizontal != DrawingAlign.Stretch)
{
bool update = true;
switch (horizontal)
{
// Keep position adjust width
case DrawingAlign.Near:
dest.Width = srcRect.Width;
break;
// Align to the right
case DrawingAlign.Far:
dest.X = dest.Right - srcRect.Width;
dest.Width = srcRect.Width;
break;
// Calculate middle
case DrawingAlign.Center:
dest.X += (dest.Width - srcRect.Width) / 2;
dest.Width = srcRect.Width;
break;
default:
update = false;
break;
}
// Adjust rectangles
if (update)
{
Rectangle rt = dest;
dest.Intersect(destRect);
if (dest.Width > 0 && dest.Width != srcRect.Width)
{
srcRect.X += dest.X - rt.X;
srcRect.Width = Math.Min(dest.Width, srcRect.Width);
}
}
}
// Can Paint?
if (!srcRect.IsEmpty && !dest.IsEmpty)
Draw(g, index, dest, srcRect);
}
/// <summary>
/// Draws the image using the specified data and alignes the image using the
/// specified alignments within the specified bounds.
/// </summary>
/// <param name="g">The graphics to draw into.</param>
/// <param name="index">The index of the image to draw.</param>
/// <param name="destRect">The target bounds to draw into.</param>
/// <param name="srcRect">The bounds of the image part to draw</param>
/// <param name="horizontal">The horizontal alignment of the part image within the specified bounds.</param>
/// <param name="vertical">The vertical alignment of the part image within the specified bounds.</param>
/// <returns></returns>
public void Draw(Graphics g, int index, Rectangle destRect, Rectangle srcRect,
DrawingAlign horizontal, DrawingAlign vertical)
{
if (srcRect.IsEmpty)
{
srcRect = new Rectangle(0, 0, ImageSize.Width, ImageSize.Height);
}
if (srcRect.IsEmpty)
{
return;
}
Rectangle dest = destRect;
// If no stretching adjust destination bounds
if (vertical != DrawingAlign.Stretch)
{
bool update = true;
switch (vertical)
{
// to top
case DrawingAlign.Near:
dest.Height = srcRect.Height;
break;
// at bottom
case DrawingAlign.Far:
dest.Y = dest.Bottom - srcRect.Height;
break;
// center
case DrawingAlign.Center:
dest.Y += (dest.Height - srcRect.Height) / 2;
dest.Height = srcRect.Height;
break;
default:
update = false;
break;
}
// atjust rectangle
if (update)
{
Rectangle rt = dest;
dest.Intersect(destRect);
if (dest.Height > 0 && dest.Height != srcRect.Height)
{
srcRect.Y += dest.Y - rt.Y;
srcRect.Height = Math.Min(dest.Height, srcRect.Height);
}
}
}
// Calculate real destination bounds if no stretching
if (horizontal != DrawingAlign.Stretch)
{
bool update = true;
switch (horizontal)
{
// Keep position adjust width
case DrawingAlign.Near:
dest.Width = srcRect.Width;
break;
// Align to the right
case DrawingAlign.Far:
dest.X = dest.Right - srcRect.Width;
dest.Width = srcRect.Width;
break;
// Calculate middle
case DrawingAlign.Center:
dest.X += (dest.Width - srcRect.Width) / 2;
dest.Width = srcRect.Width;
break;
default:
update = false;
break;
}
// Adjust rectangles
if (update)
{
Rectangle rt = dest;
dest.Intersect(destRect);
if (dest.Width > 0 && dest.Width != srcRect.Width)
{
srcRect.X += dest.X - rt.X;
srcRect.Width = Math.Min(dest.Width, srcRect.Width);
}
}
}
// Can Paint?
if (!srcRect.IsEmpty && !dest.IsEmpty)
{
Draw(g, index, dest, srcRect);
}
}
