/// <summary> Initialize this PixelMap from another image map.
///
/// </summary>
/// <param name="ref">image map to initialize from
///
/// </param>
/// <returns> the initialized PixelMap
/// </returns>
public virtual PixelMap Init(Map ref_Renamed)
{
Init(ref_Renamed.ImageHeight, ref_Renamed.ImageWidth, ((null)));
PixelReference pixel = CreateGPixelReference(0);
if ((ImageHeight > 0) && (ImageWidth > 0))
{
PixelReference refPixel = (ref_Renamed).CreateGPixelReference(0);
for (int y = 0; y < ImageHeight; y++)
{
pixel.SetOffset(y, 0);
refPixel.SetOffset(y, 0);
if (!IsRampNeeded)
{
for (int x = ImageWidth; x-- > 0; pixel.IncOffset(), refPixel.IncOffset())
{
pixel.CopyFrom(refPixel);
}
}
else
{
for (int x = ImageWidth; x-- > 0; pixel.IncOffset(), refPixel.IncOffset())
{
pixel.CopyFrom(ref_Renamed.PixelRamp(refPixel));
}
}
}
}
return(this);
}
/// <summary> Initialize this PixelMap from a segment of another image map.
///
/// </summary>
/// <param name="ref">image map to initialize from
/// </param>
/// <param name="rect">bounding rectangle to initialize from
///
/// </param>
/// <returns> the initialized PixelMap
/// </returns>
public virtual PixelMap Init(Map ref_Renamed, Rectangle rect)
{
Init(rect.Height, rect.Width, ((null)));
Rectangle rect2 = new Rectangle(0, 0, ref_Renamed.ImageWidth, ref_Renamed.ImageHeight);
rect2.Intersect(rect2, rect);
rect2.Translate(-rect.Right, -rect.Bottom);
if (!rect2.Empty)
{
PixelReference pixel = CreateGPixelReference(0);
PixelReference refPixel = ref_Renamed.CreateGPixelReference(0);
for (int y = rect2.Bottom; y < rect2.Top; y++)
{
pixel.SetOffset(y, rect2.Right);
refPixel.SetOffset(y + rect.Bottom, rect.Right + rect2.Right);
if (!IsRampNeeded)
{
for (int x = rect2.Left - rect2.Right; x-- > 0; pixel.IncOffset(), refPixel.IncOffset())
{
pixel.CopyFrom(refPixel);
}
}
else
{
for (int x = rect2.Left - rect2.Right; x-- > 0; pixel.IncOffset(), refPixel.IncOffset())
{
pixel.CopyFrom(ref_Renamed.PixelRamp(refPixel));
}
}
}
}
return(this);
}
/// <summary> Insert the reference map at the specified location.
///
/// </summary>
/// <param name="ref">map to insert
/// </param>
/// <param name="dx">horizontal position to insert at
/// </param>
/// <param name="dy">vertical position to insert at
/// </param>
public override void Fill(Map ref_Renamed, int dx, int dy)
{
int x0 = (dx > 0) ? dx : 0;
int y0 = (dy > 0) ? dy : 0;
int x1 = (dx < 0) ? (-dx) : 0;
int y1 = (dy < 0) ? (-dy) : 0;
int w0 = ImageWidth - x0;
int w1 = ref_Renamed.ImageWidth - x1;
int w = (w0 < w1) ? w0 : w1;
int h0 = ImageHeight - y0;
int h1 = ref_Renamed.ImageHeight - y1;
int h = (h0 < h1) ? h0 : h1;
if ((w > 0) && (h > 0))
{
PixelReference pixel = CreateGPixelReference(0);
PixelReference refPixel = ref_Renamed.CreateGPixelReference(0);
do
{
pixel.SetOffset(y0++, x0);
refPixel.SetOffset(y1++, x1);
if (!IsRampNeeded)
{
pixel.SetPixels(refPixel, w);
}
else
{
int i = w;
do
{
pixel.CopyFrom(ref_Renamed.PixelRamp(refPixel));
pixel.IncOffset();
refPixel.IncOffset();
} while (--i > 0);
}
} while (--h > 0);
}
}