public void Draw(Graphics g, ColorHandler.RGB RGB)
{
// Given RGB values, calculate HSV and then update the screen.
this.g = g;
this.HSV = ColorHandler.RGBtoHSV(RGB);
CalcCoordsAndUpdate(this.HSV);
UpdateDisplay();
}
private void HandleRGBScroll(object sender, ScrollEventArgs e)
{
// If the R, G, or B values change, use this
// code to update the HSV values and invalidate
// the color wheel (so it updates the pointers).
// Check the isInUpdate flag to avoid recursive events
// when you update the NumericUpdownControls.
changeType = ChangeStyle.RGB;
RGB = new ColorHandler.RGB((int)nudRed.Value, (int)nudGreen.Value, (int)nudBlue.Value);
SetHSV(ColorHandler.RGBtoHSV(RGB));
this.Invalidate();
}
private void HandleRGBScroll(object sender, EventArgs e)
{
// If the R, G, or B values change, use this
// code to update the HSV values and invalidate
// the color wheel (so it updates the pointers).
// Check the isInUpdate flag to avoid recursive events
// when you update the NumericUpdownControls.
changeType = ChangeStyle.RGB;
argb = new ColorHandler.ARGB(tbAlpha.Value, tbRed.Value, tbGreen.Value, tbBlue.Value);
SetHSV(ColorHandler.RGBtoHSV(argb));
SetRGBLabels(argb);
Invalidate();
}
private void UpdateColorInfo(ColorHandler.RGB RGB)
{
this.RGB = RGB;
btnOK.BackColor = ColorHandler.RGBtoColor(RGB);
btnOK.ForeColor = (RGB.Red < 180 && RGB.Green < 180) ? Color.White : Color.Black;
//update color info
switch (cbColorInfo.SelectedItem.ToString())
{
case COLOR_INFO_RGB:
RefreshNudValue(nudRed, RGB.Red);
RefreshNudValue(nudBlue, RGB.Blue);
RefreshNudValue(nudGreen, RGB.Green);
break;
case COLOR_INFO_HEX:
string r = RGB.Red.ToString("X02");
string g = RGB.Green.ToString("X02");
string b = RGB.Blue.ToString("X02");
isInUpdate = true;
tbFloatVals.Text = r + g + b;
isInUpdate = false;
break;
case COLOR_INFO_FLOAT:
string r2 = ((float)Math.Round(RGB.Red / 255f, 2)).ToString("F02", CultureInfo.InvariantCulture);
string g2 = ((float)Math.Round(RGB.Green / 255f, 2)).ToString("F02", CultureInfo.InvariantCulture);
string b2 = ((float)Math.Round(RGB.Blue / 255f, 2)).ToString("F02", CultureInfo.InvariantCulture);
isInUpdate = true;
tbFloatVals.Text = r2 + " " + g2 + " " + b2;
isInUpdate = false;
break;
}
//dispatch event further
EventHandler <ColorChangedEventArgs> handler = OnColorChanged;
if (handler != null)
{
handler(this, new ColorChangedEventArgs(RGB, ColorHandler.RGBtoHSV(RGB)));
}
}
private void ColorChooser1_Load(object sender, System.EventArgs e)
{
// Turn on double-buffering, so the form looks better.
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.UserPaint, true);
this.SetStyle(ControlStyles.DoubleBuffer, true);
// These properties are set in design view, as well, but they
// have to be set to false in order for the Paint
// event to be able to display their contents.
// Never hurts to make sure they're invisible.
pnlSelectedColor.Visible = false;
pnlBrightness.Visible = false;
pnlColor.Visible = false;
// Calculate the coordinates of the three
// required regions on the form.
Rectangle SelectedColorRectangle =
new Rectangle(pnlSelectedColor.Location, pnlSelectedColor.Size);
Rectangle BrightnessRectangle =
new Rectangle(pnlBrightness.Location, pnlBrightness.Size);
Rectangle ColorRectangle =
new Rectangle(pnlColor.Location, pnlColor.Size);
// Create the new ColorWheel class, indicating
// the locations of the color wheel itself, the
// brightness area, and the position of the selected color.
myColorWheel = new ColorWheel(
ColorRectangle, BrightnessRectangle,
SelectedColorRectangle);
myColorWheel.ColorChanged +=
new ColorWheel.ColorChangedEventHandler(
this.myColorWheel_ColorChanged);
// Set the RGB and HSV values
// of the NumericUpDown controls.
SetRGB(RGB);
HSV = ColorHandler.RGBtoHSV(RGB);
SetHSV(HSV);
changeType = ChangeStyle.RGB;
}
/// <summary>
/// The control_ text changed.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void Control_TextChanged(object sender, EventArgs e)
{
if (updatingColors)
{
return;
}
Control c = (Control)sender;
try
{
if ((Color)c.Tag == Color.White)
{
this.color.Alpha = Math.Max(0, Math.Min(255, (int)(float.Parse(c.Text) * 255)));
}
if ((Color)c.Tag == Color.Red)
{
this.color.Red = Math.Max(0, Math.Min(255, (int)(float.Parse(c.Text) * 255)));
}
if ((Color)c.Tag == Color.Green)
{
this.color.Green = Math.Max(0, Math.Min(255, (int)(float.Parse(c.Text) * 255)));
}
if ((Color)c.Tag == Color.Blue)
{
this.color.Blue = Math.Max(0, Math.Min(255, (int)(float.Parse(c.Text) * 255)));
}
this.hsvColor = ColorHandler.RGBtoHSV(this.color);
updateBar();
}
catch
{
}
}
/// <summary>
/// The control_ lost focus.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void Control_LostFocus(object sender, EventArgs e)
{
hsvColor = ColorHandler.RGBtoHSV(this.color);
updateBar();
this.Refresh();
}