public void GenerateWL()
{
if (histo_data == null || histo_data.HistogramData == null)
{
return;
}
WL_BMP = new Bitmap(histo_width, histo_height);
Graphics gp = Graphics.FromImage(WL_BMP);
Point p = HisLUT.GetCminCmax(histo_data.windowCenter, histo_data.windowWidth);
int curMin = GetValuePosition(p.X);
int curMax = GetValuePosition(p.Y);
int maxX = WL_BMP.Width - 1;
if (curMin < 0)
{
curMin = 0;
}
else if (curMin > maxX)
{
curMin = maxX;
}
if (curMax < 0)
{
curMax = 0;
}
else if (curMax > maxX)
{
curMax = maxX;
}
if (curMax < curMin)
{
curMax = curMin;
}
Pen WL_pen = new Pen(WL_Color);
Point p_left_down = new Point(curMin, WL_BMP.Height);
Point p_left_up = new Point(curMin, 0);
Point p_right_down = new Point(curMax, WL_BMP.Height);
Point p_right_up = new Point(curMax, 0);
Point p_mid_up = new Point((curMin + curMax) / 2, 0);
Point p_mid_down = new Point((curMin + curMax) / 2, WL_BMP.Height);
gp.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
gp.DrawLine(WL_pen, p_left_down, p_left_up);
gp.DrawLine(WL_pen, p_left_down, p_right_up);
gp.DrawLine(WL_pen, p_right_down, p_right_up);
gp.DrawLine(WL_pen, p_mid_up, p_mid_down);
gp.Dispose();
}
public void MouseDown(PictureBox picturebox, MouseEventArgs e)
{
if (histo_data == null || histo_data.HistogramData == null)
{
return;
}
Point p = new Point(e.X - startPoint_ref.X, e.Y - startPoint_ref.Y);
if (p.Y > histo_height)
{
return;
}
Point p_minMax = HisLUT.GetCminCmax(histo_data.windowCenter, histo_data.windowWidth);
int curMin = GetValuePosition(p_minMax.X);
int curMax = GetValuePosition(p_minMax.Y);
if (Math.Abs(p.X - curMin) < 5 && p.Y < histo_height)
{
breakPoint.Y = 1;
}
else if (((p.X - curMin) > 5) && ((curMax - p.X) > 5) && p.Y < histo_height)
{
breakPoint.Y = 2;
}
else if (Math.Abs(p.X - curMax) < 5 && p.Y < histo_height)
{
breakPoint.Y = 3;
}
else
{
breakPoint.Y = 0;
}
breakPoint.X = p.X;
}
public void MouseMove(PictureBox picturebox, MouseEventArgs e)
{
if (histo_data == null || histo_data.HistogramData == null)
{
return;
}
Point p = new Point(e.X - startPoint_ref.X, e.Y - startPoint_ref.Y);
if (p.Y > histo_height)
{
return;
}
Point p_minMax = HisLUT.GetCminCmax(histo_data.windowCenter, histo_data.windowWidth);
int curMin = GetValuePosition(p_minMax.X);
int curMax = GetValuePosition(p_minMax.Y);
int error = 3;
if (e.Button != MouseButtons.Left)
{
if (Math.Abs(p.X - curMin) < error && p.Y < histo_height)
{
picturebox.Cursor = Cursors.SizeWE;
}
else if (Math.Abs(p.X - curMax) < error && p.Y < histo_height)
{
picturebox.Cursor = Cursors.SizeWE;//TCursor.curRight;
}
else if (((p.X - curMin) >= error) && ((curMax - p.X) >= error) && p.Y < histo_height)
{
picturebox.Cursor = Cursors.Hand;
}
else
{
picturebox.Cursor = Cursors.Default;
}
}
else if (breakPoint.Y != 0 && Math.Abs(p.X - breakPoint.X) > 5 && p.Y < histo_height)
{
int oldMinInHist = curMin;
int oldMaxInHist = curMax;
if (breakPoint.Y == 1)
{
curMin = p.X;
breakPoint.X = p.X;
}
else if (breakPoint.Y == 3)
{
curMax = e.X;
breakPoint.X = p.X;
}
else if (breakPoint.Y == 2)
{
curMax += (p.X - breakPoint.X); //加上偏移量
curMin += (p.X - breakPoint.X);
if (curMin < 0 && p.X < (0 + curMax) / 2)
{
curMax -= (0 - curMin);
}
if (curMax > histo_width && p.X > (curMin + histo_width - 0 - 1) / 2)
{
curMin += (curMax - histo_width);
}
breakPoint.X = p.X;
}
if (Math.Abs(oldMinInHist - curMin) < 1 && Math.Abs(oldMaxInHist - curMax) < 1)
{
return;
}
int minV = GetPositionValue(curMin);
int maxV = GetPositionValue(curMax);
if (minV > maxV)
{
int temp = maxV;
maxV = minV;
minV = temp;
}
histo_data.SetCenterWindow((maxV - minV) / 2 + minV, maxV - minV);
picturebox.Image = new Bitmap(histo_width, histo_height);
Graphics g = Graphics.FromImage(picturebox.Image);
GenerateWL();
g.DrawImage(backBMP, new Point(0, 0));
g.DrawImage(WL_BMP, new Point(0, 0));
picturebox.Refresh();
//hist1.RefreshLUT();
//if (LUTChanged != null)
//{
// LUTChanged(0, new Point(hist1.windowCenter, hist1.windowWidth), hist1.LUT);
//}
}
}
