public void Line(Stroke stroke,Point point0,Point point1)
{
//Extremely Fast Line Algorithm
//Copyright 2001-2002, By Po-Han Lin
bool yLonger=false;
int shortLen=point1.Y-point0.Y;
int longLen=point1.X-point0.X;
if(Math.Abs(shortLen)>Math.Abs(longLen))
{
int swap=shortLen;
shortLen=longLen;
longLen=swap;
yLonger=true;
}
int decInc;
if(longLen==0)decInc=0;
else decInc=(shortLen<<16)/longLen;
if(yLonger)
{
if(longLen>0)
{
longLen+=point0.Y;
for(int j=0x8000+(point0.X<<16);point0.Y<=longLen;++point0.Y)
{
Point(stroke,new Point(j>>16,point0.Y));
j+=decInc;
}
return;
}
longLen+=point0.Y;
for(int j=0x8000+(point0.X<<16);point0.Y>=longLen;--point0.Y)
{
Point(stroke,new Point(j>>16,point0.Y));
j-=decInc;
}
return;
}
if(longLen>0)
{
longLen+=point0.X;
for(int j=0x8000+(point0.Y<<16);point0.X<=longLen;++point0.X)
{
Point(stroke,new Point(point0.X,j>>16));
j+=decInc;
}
return;
}
longLen+=point0.X;
for(int j=0x8000+(point0.Y<<16);point0.X>=longLen;--point0.X)
{
Point(stroke,new Point(point0.X,j>>16));
j-=decInc;
}
}
public void Point(Stroke stroke,Point point)
{
//Draw point (image)
if(stroke!=null)
graphics.DrawImage(stroke.Shape,new Rectangle(point.X-(int)(stroke.Width/2f),point.Y-(int)(stroke.Width/2f),(int)stroke.Width,(int)stroke.Width),0,0,stroke.Shape.Width,stroke.Shape.Height,GraphicsUnit.Pixel);
}
private void UpdateStroke()
{
//Create stroke
if(listBox1.SelectedIndex!=-1)
{
stroke=new Stroke(new Bitmap(Directory.GetCurrentDirectory()+"\\Shapes\\"+listBox1.SelectedItem),Color.FromArgb((int)numericUpDown2.Value,colorDialog1.Color),(float)numericUpDown3.Value,(float)numericUpDown4.Value,(float)numericUpDown5.Value,(float)numericUpDown9.Value,checkBox1.Checked,checkBox2.Checked);
pictureBox1.Image=stroke.Shape;
}
}
