/// <summary>
/// Set Up the Bitmap Object and Initialize local members to default values. The Default will make the View include the entire image.
/// </summary>
/// <param name="OriginalBitmap">Original Bitmap to be viewed.</param>
/// <param name="ViewSize">The Size of the control that will view the entire Original Map.</param>
public ImageView(Bitmap OriginalBitmap, Size ViewSize)
{
originalBitmap = OriginalBitmap;
relCoverage = FullCoverage;
relLocation = UpperLeft;
//Aspect Ratios
OriginalAspectRatio = originalBitmap.Width / originalBitmap.Height;
ViewAspectRatio = ViewSize.Width / ViewSize.Height;
this.ViewSize = ViewSize;
}
protected virtual void OnViewChanged()
{
RectangleF NewImage;
RectangleF destRect;
GraphicsUnit gUnit = GraphicsUnit.Pixel;
ViewBitmap = new Bitmap(ViewSize.Width, ViewSize.Height);
//if intermediatebm is zoomed all the way in, then don't
Graphics g = Graphics.FromImage(ViewBitmap);
g.Clear(Color.Black);
NewImage = new RectangleF(relLocation * IntermediateSize, relCoverage * IntermediateSize);
destRect = new RectangleF((ViewBitmap.Width - NewImage.Width) / 2f,
(ViewBitmap.Height - NewImage.Height) / 2f, NewImage.Width, NewImage.Height);
if ((IntermediateSize.Height < ViewSize.Height)) //Black Horizontal Bars
{
Blackorientation = BlackOrientation.Horizontal;
relLocation = new RelativePoint(relLocation.X, 0);
relCoverage = new RelativeSize(relCoverage.Width, 1);
FirstBlack = new SizeF(IntermediateSize.Width, (ViewSize.Height - IntermediateSize.Height) / 2);
SecondBlack = new SizeF(IntermediateSize.Width, (ViewSize.Height - IntermediateSize.Height) / 2);
g.DrawImage(intermediateBitmap, destRect, NewImage, gUnit);
}
else if ((IntermediateSize.Width < ViewSize.Width)) //Black Veritcal Bars
{
Blackorientation = BlackOrientation.Vertical;
relLocation = new RelativePoint(0, relLocation.Y);
relCoverage = new RelativeSize(1, relCoverage.Height);
FirstBlack = new SizeF((ViewSize.Width - IntermediateSize.Width) / 2, IntermediateSize.Height);
SecondBlack = new SizeF((ViewSize.Width - IntermediateSize.Width) / 2, IntermediateSize.Height);
g.DrawImage(intermediateBitmap, destRect, NewImage, gUnit);
}
else //No Bars
{
Blackorientation = null;
g.DrawImage(intermediateBitmap, ViewBitmap.GetBounds(ref gUnit), NewImage, GraphicsUnit.Pixel);
}
if (ViewChanged != null)
ViewChanged(this, new EventArgs());
}
public static RelativePoint Min(RelativePoint arg1, RelativePoint arg2)
{
return new RelativePoint(Math.Min(arg1.X, arg2.X), Math.Min(arg1.Y, arg2.Y));
}
