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Portrait.cs
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Portrait.cs
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using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace WFA_GenerateurTrombinoscope
{
public class Portrait
{
private Size _sizeMax = new Size(350, 450);
private int _sizeCoef = 5;
private double _factor = 1d;
public Bitmap Original { get; private set; }
public Bitmap Current { get; private set; }
public Portrait(string aPathPhoto)
{
Bitmap bm = new Bitmap(aPathPhoto);
if (bm.Width > bm.Height)
{
double ratio = (_sizeMax.Width * _sizeCoef) / (double)bm.Width;
Original = new Bitmap(bm, new Size(_sizeMax.Width * _sizeCoef, (int)(bm.Height * ratio)));
Original.RotateFlip(RotateFlipType.Rotate90FlipXY);
}
else
{
double ratio = (_sizeMax.Height * _sizeCoef) / (double)bm.Height;
Original = new Bitmap(bm, new Size((int)(bm.Width * ratio), _sizeMax.Height * _sizeCoef));
}
Current = Original.Clone() as Bitmap;
}
public Bitmap zoom(double aFactor)
{
if ((aFactor < 0.1d) || (aFactor > 2)) // limite sup à 2 ?
{
throw new Exception("the reduction factor must be in the interval 0.1 to 2.0 ");
}
_factor = aFactor;
int width = (int)(Original.Width * _factor);
int height = (int)(Original.Height * _factor);
Current = new Bitmap(Original, new Size(width, height));
return Current;
}
public Bitmap rotate(RotateFlipType aRotateFlipType)
{
Original.RotateFlip(aRotateFlipType);
zoom(_factor);
return Current;
}
}
}