public bool RectangleStart(Engine.Rectangle rect, Row r)
{
bool rc = true;
switch (rect.DataElementOutput)
{
case DataElementOutputEnum.NoOutput:
rc = false;
break;
case DataElementOutputEnum.Output:
if (rowstart != null) // In case no items in row are visible
{ // we delay until we get one.
tw.Write(rowstart);
rowstart = null;
}
PushContainer(rect.DataElementName);
break;
case DataElementOutputEnum.Auto:
case DataElementOutputEnum.ContentsOnly:
default:
break;
}
return(rc);
}
public void RectangleEnd(Engine.Rectangle rect, Row r)
{
if (rect.DataElementOutput != DataElementOutputEnum.Output)
{
return;
}
PopContainer(rect.DataElementName);
}
public void RectangleEnd(Engine.Rectangle rect, Row r)
{
}
public bool RectangleStart(Engine.Rectangle rect, Row r)
{
return(true);
}
public static Engine.Surface.Canvas CopyFromImage(Engine.Surface.Canvas source, Engine.Rectangle region)
{
// if rectangle goes outside of the boundaries of the source, some pixels will not be set,
// therefore fill the result first to ensure complete byte data
Engine.Surface.Canvas dest = new Canvas(region.Size.Width, region.Size.Height, Engine.Colors.Teal);
// calc origin of new image on source to start copy
// originX originY are coords of source image
// destX and destY are coords of new image
int originX = 0;
int destX = 0;
int width = 0;
int originY = 0;
int destY = 0;
int height = 0;
//.....................
if (region.Point.X < 0)
{
originX = 0;
destX = Math.Abs(region.Point.X);
width = dest.Width - destX;
}
else if (dest.Width + region.Point.X > source.Width)
{
originX = region.Point.X;
destX = 0;
width = source.Width - region.Point.X;
}
else
{
originX = region.Point.X;
width = dest.Width;
}
//.....................
if (region.Point.Y < 0)
{
originY = 0;
destY = Math.Abs(region.Point.Y);
height = dest.Height - destY;
}
else if (dest.Height + region.Point.Y > source.Height)
{
originY = region.Point.Y;
destY = 0;
height = source.Height - region.Point.Y;
}
else
{
originY = region.Point.Y;
height = dest.Height;
}
del_CopyFromImage a = thread_CopyFromImage;
del_CopyFromImage b = thread_CopyFromImage;
del_CopyFromImage c = thread_CopyFromImage;
del_CopyFromImage d = thread_CopyFromImage;
int quarterHeight = height / 4;
int destY_a = destY, height_0 = quarterHeight;
int destY_b = quarterHeight, height_1 = (quarterHeight * 2);
int destY_c = (quarterHeight * 2), height_2 = (quarterHeight * 3);
int destY_d = (quarterHeight * 3), height_3 = height;
IAsyncResult cookie_a = a.BeginInvoke(source, dest, originX, originY, destX, destY_a, width, height_0, null, null);
IAsyncResult cookie_b = b.BeginInvoke(source, dest, originX, originY, destX, destY_b, width, height_1, null, null);
IAsyncResult cookie_c = c.BeginInvoke(source, dest, originX, originY, destX, destY_c, width, height_2, null, null);
IAsyncResult cookie_d = d.BeginInvoke(source, dest, originX, originY, destX, destY_d, width, height_3, null, null);
a.EndInvoke(cookie_a);
b.EndInvoke(cookie_b);
c.EndInvoke(cookie_c);
d.EndInvoke(cookie_d);
return(dest);
}
