/// <summary>
/// Crops the image by the specified width/height
/// </summary>
/// <param name="Width">The width.</param>
/// <param name="Height">The height.</param>
/// <param name="VAlignment">The v alignment.</param>
/// <param name="HAlignment">The h alignment.</param>
/// <returns></returns>
public SwiftBitmap Crop(int Width, int Height, Align VAlignment, Align HAlignment)
{
Contract.Requires <NullReferenceException>(InternalBitmap != null);
Unlock();
var TempRectangle = new System.Drawing.Rectangle();
TempRectangle.Height = Height;
TempRectangle.Width = Width;
TempRectangle.Y = VAlignment == Align.Top ? 0 : this.Height - Height;
if (TempRectangle.Y < 0)
{
TempRectangle.Y = 0;
}
TempRectangle.X = HAlignment == Align.Left ? 0 : this.Width - Width;
if (TempRectangle.X < 0)
{
TempRectangle.X = 0;
}
var TempHolder = InternalBitmap.Clone(TempRectangle, InternalBitmap.PixelFormat);
InternalBitmap.Dispose();
InternalBitmap = TempHolder;
this.Width = Width;
this.Height = Height;
return(this);
}
/// <summary>
/// Resizes an SwiftBitmap to a certain height
/// </summary>
/// <param name="Width">New width for the final image</param>
/// <param name="Height">New height for the final image</param>
/// <param name="Quality">Quality of the resizing</param>
/// <returns>This</returns>
public SwiftBitmap Resize(int Width, int Height, Quality Quality = Quality.Low)
{
Contract.Requires <NullReferenceException>(InternalBitmap != null);
Unlock();
var TempBitmap = new Bitmap(Width, Height);
using (Graphics NewGraphics = Graphics.FromImage(TempBitmap))
{
if (Quality == Quality.High)
{
NewGraphics.CompositingQuality = CompositingQuality.HighQuality;
NewGraphics.SmoothingMode = SmoothingMode.HighQuality;
NewGraphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
}
else
{
NewGraphics.CompositingQuality = CompositingQuality.HighSpeed;
NewGraphics.SmoothingMode = SmoothingMode.HighSpeed;
NewGraphics.InterpolationMode = InterpolationMode.NearestNeighbor;
}
NewGraphics.DrawImage(InternalBitmap, new System.Drawing.Rectangle(0, 0, Width, Height));
}
InternalBitmap.Dispose();
InternalBitmap = TempBitmap;
this.Width = Width;
this.Height = Height;
return(this);
}
/// <summary>
/// Function to override in order to dispose objects
/// </summary>
/// <param name="Managed">
/// If true, managed and unmanaged objects should be disposed. Otherwise unmanaged objects only.
/// </param>
protected override void Dispose(bool Managed)
{
if (Data != null)
{
Unlock();
}
if (InternalBitmap != null)
{
InternalBitmap.Dispose();
InternalBitmap = null;
}
}
/// <summary>
/// Copies the image from one image to this one.
/// </summary>
/// <param name="SwiftBitmap">The SwiftBitmap to copy from.</param>
/// <returns>This</returns>
public unsafe SwiftBitmap Copy(SwiftBitmap SwiftBitmap)
{
Contract.Requires <NullReferenceException>(InternalBitmap != null);
if (SwiftBitmap == null)
{
return(this);
}
Unlock();
InternalBitmap.Dispose();
InternalBitmap = (Bitmap)SwiftBitmap.InternalBitmap.Clone();
return(this);
}
/// <summary>
/// Rotates an image
/// </summary>
/// <param name="DegreesToRotate">Degrees to rotate the image</param>
/// <returns>This</returns>
public SwiftBitmap Rotate(float DegreesToRotate)
{
Contract.Requires <NullReferenceException>(InternalBitmap != null);
Unlock();
var TempBitmap = new Bitmap(Width, Height);
using (Graphics NewGraphics = Graphics.FromImage(TempBitmap))
{
NewGraphics.TranslateTransform((float)Width / 2.0f, (float)Height / 2.0f);
NewGraphics.RotateTransform(DegreesToRotate);
NewGraphics.TranslateTransform(-(float)Width / 2.0f, -(float)Height / 2.0f);
NewGraphics.DrawImage(InternalBitmap,
new System.Drawing.Rectangle(0, 0, Width, Height),
new System.Drawing.Rectangle(0, 0, Width, Height),
GraphicsUnit.Pixel);
}
InternalBitmap.Dispose();
InternalBitmap = TempBitmap;
return(this);
}