// returns true for out of range
public static bool SetPixel(object sessionObj, int x1, int y1, int x2, int y2, int r, int g, int b, int a)
{
Wax.Util.Images.UniversalBitmap.DrawingSession session = (Wax.Util.Images.UniversalBitmap.DrawingSession)sessionObj;
if (x1 < 0 || y1 < 0 || x1 >= session.Parent.Width || y1 >= session.Parent.Height)
{
return(true);
}
if (x2 < 0 || y2 < 0 || x2 >= session.Parent.Width || y2 >= session.Parent.Height)
{
return(true);
}
if (x1 == x2 && y1 == y2)
{
session.SetPixel(x1, y1, r, g, b, a);
}
else
{
int xdiff = x2 - x1;
int ydiff = y2 - y1;
double progress;
int step, xEnd, yEnd, x, y;
if (Math.Abs(xdiff) > Math.Abs(ydiff))
{
// draw horizontally
step = xdiff > 0 ? 1 : -1;
xEnd = x2 + step;
for (x = x1; x != xEnd; x += step)
{
progress = 1.0 * (x - x1) / (x2 - x1);
y = (int)(progress * ydiff + .5) + y1;
session.SetPixel(x, y, r, g, b, a);
}
}
else
{
// draw vertically
step = ydiff > 0 ? 1 : -1;
yEnd = y2 + step;
for (y = y1; y != yEnd; y += step)
{
progress = 1.0 * (y - y1) / (y2 - y1);
x = (int)(progress * xdiff + .5) + x1;
session.SetPixel(x, y, r, g, b, a);
}
}
}
return(false);
}
public static void EndEditSession(object sessionObj, object bmpObj)
{
Wax.Util.Images.UniversalBitmap.DrawingSession session = (Wax.Util.Images.UniversalBitmap.DrawingSession)sessionObj;
session.Flush();
}
public static void Blit(object targetObj, object srcObj, int sx, int sy, int sw, int sh, int tx, int ty, int tw, int th)
{
Wax.Util.Images.UniversalBitmap.DrawingSession target = (Wax.Util.Images.UniversalBitmap.DrawingSession)targetObj;
Wax.Util.Images.UniversalBitmap src = (Wax.Util.Images.UniversalBitmap)srcObj;
target.Draw(src, tx, ty, sx, sy, tw, th, sw, sh);
}
public static object StartEditSession(object bmpObj)
{
Wax.Util.Images.UniversalBitmap bmp = (Wax.Util.Images.UniversalBitmap)bmpObj;
Wax.Util.Images.UniversalBitmap.DrawingSession session = bmp.CreateNewDrawingSession();
return(session);
}
