virtual public void Configure()
{
FractalSettingsDialog dia = new FractalSettingsDialog();
dia.Parameters = (IFractalParameters)this.Parameters.Clone();
if (dia.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
this.Parameters = dia.Parameters;
}
}
void OnImageZoomed(Point p1, Point p2)
{
IFractalParameters pars = frac.Parameters;
double x1f, y1f;
double x2f, y2f;
ScreenToFractal(p1.X, p1.Y, out x1f, out y1f);
ScreenToFractal(p2.X, p2.Y, out x2f, out y2f);
double XN = (x2f + x1f) / 2.0;
double YN = (y2f + y1f) / 2.0;
double WFN = (x2f - x1f);
double HFN = (y2f - y1f);
pars.SetValue("X", XN);
pars.SetValue("Y", YN);
pars.SetValue("W", WFN);
pars.SetValue("H", HFN);
RenderFractal();
}
bool ScreenToFractal(double X, double Y, out double XF, out double YF)
{
if (pictureBox2.Image != null)
{
int off_x = pictureBox2.Width - pictureBox2.Image.Width;
int off_y = pictureBox2.Height - pictureBox2.Image.Height;
off_x /= 2;
off_y /= 2;
if (X > off_x && X < (off_x + pictureBox2.Image.Width) &&
Y > off_y && Y < (off_y + pictureBox2.Image.Height))
{
X -= off_x;
Y -= off_y;
IFractalParameters pars = frac.Parameters;
double FracX = (double)pars.GetValue("X");
double FracY = (double)pars.GetValue("Y");
double FracWidth = (double)pars.GetValue("W");
double FracHeight = (double)pars.GetValue("H");
double FracX1 = FracX - 0.5 * FracWidth;
double FracY1 = FracY - 0.5 * FracHeight;
// PicW : X = FracWidth : dxf
// pictureBox2.Image.Width : X = FracWidth : dxf
double dxf = FracWidth * X / pictureBox2.Image.Width;
double dyf = FracHeight * Y / pictureBox2.Image.Height;
XF = FracX1 + dxf;
YF = FracY1 + dyf;
return(true);
}
}
XF = 0;
YF = 0;
return(false);
}
