public virtual void FillRectangle(int x1, int y1, int x2, int y2, Color color)
{
int _x1 = x1;
int _y1 = y1;
int _x2 = x2;
int _y2 = y2;
if (_x1 > _x2)
{
_x1 = x2;
_x2 = x1;
}
if (_y1 > _y2)
{
_y1 = y2;
_y2 = y1;
}
pixelBuffer.SetSubBuffer(color, _x1, _y1, _x2 - _x1, _y2 - _y1);
}
public void ResizeBuffer(ResizePivot pivot, int width, int height, Color backColor)
{
if (width == _width && height == _height) return;
PixelBuffer newBuffer = new PixelBuffer(width, height);
newBuffer.ClearBuffer(backColor);
int dataWidth = Math.Min(width, _width);
int dataHeight = Math.Min(height, _height);
int deltaX = Math.Abs(width - _width);
int deltaY = Math.Abs(height - _height);
int midDeltaX = (int)Math.Round(deltaX / 2f, MidpointRounding.AwayFromZero);
int midDeltaY = (int)Math.Round(deltaY / 2f, MidpointRounding.AwayFromZero);
bool inflateX = (width > _width);
bool inflateY = (height > _height);
int srcX = 0;
int srcY = 0;
int destX = 0;
int destY = 0;
int srcW = width;
int srcH = height;
switch (pivot)
{
case ResizePivot.TopLeft:
srcX = 0;
destX = 0;
srcY = 0;
destY = 0;
break;
case ResizePivot.TopCenter:
if (inflateX)
{
srcX = 0;
destX = midDeltaX;
}
else
{
srcX = midDeltaX;
destX = 0;
}
srcY = 0;
destY = 0;
break;
case ResizePivot.TopRight:
if (inflateX)
{
srcX = 0;
destX = deltaX;
}
else
{
srcX = deltaX;
destX = 0;
}
srcY = 0;
destY = 0;
break;
case ResizePivot.MiddleLeft:
srcX = 0;
destX = 0;
if (inflateY)
{
srcY = 0;
destY = midDeltaY;
}
else
{
srcY = midDeltaY;
destY = 0;
}
break;
case ResizePivot.MiddleCenter:
if (inflateX)
{
srcX = 0;
destX = midDeltaX;
}
else
{
srcX = midDeltaX;
destX = 0;
}
if (inflateY)
{
srcY = 0;
destY = midDeltaY;
}
else
{
srcY = midDeltaY;
destY = 0;
}
break;
case ResizePivot.MiddleRight:
if (inflateX)
{
srcX = 0;
destX = deltaX;
}
else
{
srcX = deltaX;
destX = 0;
}
if (inflateY)
{
srcY = 0;
destY = midDeltaY;
}
else
{
srcY = midDeltaY;
destY = 0;
}
break;
case ResizePivot.BottomLeft:
srcX = 0;
destX = 0;
if (inflateY)
{
srcY = 0;
destY = deltaY;
}
else
{
srcY = deltaY;
destY = 0;
}
break;
case ResizePivot.BottomCenter:
if (inflateX)
{
srcX = 0;
destX = midDeltaX;
}
else
{
srcX = midDeltaX;
destX = 0;
}
if (inflateY)
{
srcY = 0;
destY = deltaY;
}
else
{
srcY = deltaY;
destY = 0;
}
break;
case ResizePivot.BottomRight:
if (inflateX)
{
srcX = 0;
destX = deltaX;
}
else
{
srcX = deltaX;
destX = 0;
}
if (inflateY)
{
srcY = 0;
destY = deltaY;
}
else
{
srcY = deltaY;
destY = 0;
}
break;
}
if (inflateX && inflateY)
{
newBuffer.SetSubBuffer(_buffer, destX, destY, dataWidth, dataHeight);
}
else
{
PixelBuffer blitBuffer = this.GetSubBuffer(srcX, srcY, dataWidth, dataHeight);
newBuffer.SetSubBuffer(blitBuffer, destX, destY);
}
this.Initialize(width, height);
Array.Copy(newBuffer.InternalBuffer, _buffer, _buffer.Length);
newBuffer.Dispose();
}
private unsafe PixelBuffer GetSubBufferOutside(int x, int y, int width, int height)
{
PixelBuffer retBuff = new PixelBuffer(width, height);
int sx = x;
int sy = y;
int sw = width;
int sh = height;
if (x < 0)
{
sx = 0;
sw += x;
}
else if ((x + width) > _width)
{
sw = _width - x;
}
if (y < 0)
{
sy = 0;
sh += y;
}
else if ((y + height) > _height)
{
sh = _height - y;
}
if (sw <= 0 || sh <= 0)
{
return new PixelBuffer(width,height);
}
int defaultColor = 0;
fixed (int* src = _buffer)
{
int index = this.GetPixelBytesIndex(sx, sy, _width);
defaultColor = this.GetPixelColorByIndex(src, index);
}
fixed (int* dest = retBuff.InternalBuffer)
{
retBuff.SetBufferColor(dest, defaultColor);
}
using (PixelBuffer subBuff = this.GetSubBuffer(sx, sy, sw, sh))
{
int fx = 0;
int fy = 0;
if (x < 0) fx = -x;
if (y < 0) fy = -y;
retBuff.SetSubBuffer(subBuff, fx, fy);
}
return retBuff;
}
private unsafe PixelBuffer GetSubBufferOutside(int x, int y, int width, int height)
{
PixelBuffer retBuff = new PixelBuffer(width, height);
int sx = x;
int sy = y;
int sw = width;
int sh = height;
if (x < 0)
{
sx = 0;
sw += x;
}
else if ((x + width) > _width)
{
sw = _width - x;
}
if (y < 0)
{
sy = 0;
sh += y;
}
else if ((y + height) > _height)
{
sh = _height - y;
}
if (sw <= 0 || sh <= 0)
{
return(new PixelBuffer(width, height));
}
int defaultColor = 0;
fixed(int *src = _buffer)
{
int index = this.GetPixelBytesIndex(sx, sy, _width);
defaultColor = this.GetPixelColorByIndex(src, index);
}
fixed(int *dest = retBuff.InternalBuffer)
{
retBuff.SetBufferColor(dest, defaultColor);
}
using (PixelBuffer subBuff = this.GetSubBuffer(sx, sy, sw, sh))
{
int fx = 0;
int fy = 0;
if (x < 0)
{
fx = -x;
}
if (y < 0)
{
fy = -y;
}
retBuff.SetSubBuffer(subBuff, fx, fy);
}
return(retBuff);
}
