private void ColorChooser_Load(object sender, System.EventArgs e)
{
DRColor.HSV default_color = new DRColor.HSV(127, 256, 82);
// 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, default_color);
myColorWheel.ColorChanged += new ColorWheel.ColorChangedEventHandler(this.colorWheel_Changed);
// Set the RGB and HSV values
// of the NumericUpDown controls.
SetRGB(new DRColor.RGB(default_color));
SetHSV(default_color);
}
// If the H, S, or V values change, use this
// code to update the RGB values and invalidate
// the color wheel (so it updates the pointers).
// Check the isInUpdate flag to avoid recursive events
// when you update the NumericUpdownControls.
private void HandleHSVScroll(object sender, ScrollEventArgs e)
{
_changeType = ChangeStyle.HSV;
HSV = new DRColor.HSV(hsbHue.Value, hsbSaturation.Value, hsbBrightness.Value);
SetRGB(new DRColor.RGB(HSV));
SetHSVLabels(HSV);
this.Invalidate();
RainbowUtils.fillBoth(RGB);
}
private void SetHSV(DRColor.HSV HSV)
{
if (HSV == null)
{
return;
}
// Update the HSV values on the form.
RefreshValue(hsbHue, HSV.Hue);
RefreshValue(hsbSaturation, HSV.Saturation);
RefreshValue(hsbBrightness, HSV.Value);
SetHSVLabels(HSV);
}
private void SetHSVLabels(DRColor.HSV HSV)
{
RefreshText(lblHue, HSV.Hue);
RefreshText(lblSaturation, HSV.Saturation);
RefreshText(lblBrightness, HSV.Value);
}
