private void trackBarV_Scroll(object sender, EventArgs e)
{
if (PrepareLUV.prepareLUV(textBoxL.Text, textBoxU.Text, Convert.ToString(trackBarV.Value - 200)))
{
LastValueTrackBarV = trackBarV.Value;
textBoxV.Text = Convert.ToString(trackBarV.Value - 200);
TransformationLUVtoRGB trans = new TransformationLUVtoRGB(textBoxL.Text,
textBoxU.Text, textBoxV.Text);
setRGBFromLUV(trans);
setCMYFromRGB();
setHLS();
panel1.BackColor = System.Drawing.Color.FromArgb
(trackBarRed.Value, trackBarGreen.Value, trackBarBlue.Value);
}
else
{
trackBarV.Value = LastValueTrackBarV;
}
}
public static bool prepareLUV(String L, String u, String v)
{
TransformationLUVtoRGB trans = new TransformationLUVtoRGB(L, u, v);
bool flag = true;
int red = trans.getRed();
int green = trans.getGreen();
int blue = trans.getBlue();
if (trans.getRed() < 0)
{
red = 0;
flag = false;
}
if (trans.getGreen() < 0)
{
green = 0;
flag = false;
}
if (trans.getBlue() < 0)
{
blue = 0;
flag = false;
}
if (trans.getRed() > 255)
{
red = 255;
flag = false;
}
if (trans.getGreen() > 255)
{
green = 255;
flag = false;
}
if (trans.getBlue() > 255)
{
blue = 255;
flag = false;
}
return(flag);
}
// For HLS
private void setRGBFromLUV(TransformationLUVtoRGB trans)
{
textBoxRed.TextChanged -= textBoxRed_TextChanged;
textBoxGreen.TextChanged -= textBoxGreen_TextChanged;
textBoxBlue.TextChanged -= textBoxBlue_TextChanged;
trackBarRed.Scroll -= trackBarRed_Scroll;
trackBarGreen.Scroll -= trackBarGreen_Scroll;
trackBarBlue.Scroll -= trackBarBlue_Scroll;
textBoxRed.Text = Convert.ToString(trans.getRed());
textBoxGreen.Text = Convert.ToString(trans.getGreen());
textBoxBlue.Text = Convert.ToString(trans.getBlue());
trackBarRed.Value = trans.getRed();
trackBarGreen.Value = trans.getGreen();
trackBarBlue.Value = trans.getBlue();
textBoxRed.TextChanged += textBoxRed_TextChanged;
textBoxGreen.TextChanged += textBoxGreen_TextChanged;
textBoxBlue.TextChanged += textBoxBlue_TextChanged;
trackBarRed.Scroll += trackBarRed_Scroll;
trackBarGreen.Scroll += trackBarGreen_Scroll;
trackBarBlue.Scroll += trackBarBlue_Scroll;
}
