public override void DrawLine(double x1, double y1, double x2, double y2)
{
if (Clipper.ClipLine(ref x1, ref y1, ref x2, ref y2, Clip.XMin, Clip.YMin, Clip.XMax, Clip.YMax))
{
target.Add(GFXUtil.FloatToInt(x1), GFXUtil.FloatToInt(y1), GFXUtil.FloatToInt(x2), GFXUtil.FloatToInt(y2), currentobject);
}
}
private void Line_ThinContinuous(int x1, int y1, int x2, int y2, bool setlastpixel)
{
if (!Clipper.ClipLine(ref x1, ref y1, ref x2, ref y2, Clip.XMin, Clip.YMin, Clip.XMax, Clip.YMax))
{
return;
}
int d, x, y, ax, ay, sx, sy, dx, dy;
dx = x2 - x1;
ax = Math.Abs(dx) << 1;
sx = dx < 0 ? -1 : 1;
dy = y2 - y1;
ay = Math.Abs(dy) << 1;
sy = dy < 0 ? -1 : 1;
x = x1;
y = y1;
if (ax > ay)
{
d = ay - (ax >> 1);
while (x != x2)
{
*(scanlines[y] + x) = color; //set pixel
if (d >= 0)
{
y += sy;
d -= ax;
}
x += sx;
d += ay;
}
}
else
{
d = ax - (ay >> 1);
while (y != y2)
{
*(scanlines[y] + x) = color; //set pixel
if (d >= 0)
{
x += sx;
d -= ay;
}
y += sy;
d += ax;
}
}
if (setlastpixel)
{
*(scanlines[y] + x) = color; //set last pixel
}
}
void Line_ThinStippled(int x1, int y1, int x2, int y2)
{
if (!Clipper.ClipLine(ref x1, ref y1, ref x2, ref y2, Clip.XMin, Clip.YMin, Clip.XMax, Clip.YMax))
{
return;
}
int d, x, y, ax, ay, sx, sy, dx, dy;
dx = x2 - x1;
ax = Math.Abs(dx) << 1;
sx = dx < 0 ? -1 : 1;
dy = y2 - y1;
ay = Math.Abs(dy) << 1;
sy = dy < 0 ? -1 : 1;
x = x1;
y = y1;
if (ax > ay)
{
d = ay - (ax >> 1);
while (x != x2)
{
///Setpixel logic////////////////////////
if ((stipplepattern & stipplebit) != 0)
{
*(scanlines[y] + x) = color;
}
stipplebit >>= 1;
if (stipplebit == 0)
{
stipplebit = 0x8000;
}
////////////////////////////////////////
if (d >= 0)
{
y += sy;
d -= ax;
}
x += sx;
d += ay;
}
}
else
{
d = ax - (ay >> 1);
while (y != y2)
{
///Setpixel logic////////////////////////
if ((stipplepattern & stipplebit) != 0)
{
*(scanlines[y] + x) = color;
}
stipplebit >>= 1;
if (stipplebit == 0)
{
stipplebit = 0x8000;
}
////////////////////////////////////////
if (d >= 0)
{
x += sx;
d -= ay;
}
y += sy;
d += ax;
}
}
///Setpixel logic////////////////////////
if ((stipplepattern & stipplebit) != 0)
{
*(scanlines[y] + x) = color;
}
stipplebit >>= 1;
if (stipplebit == 0)
{
stipplebit = 0x8000;
}
////////////////////////////////////////
}
