private void OnValueChangedEvent(object sender, RangeBaseValueChangedEventArgs args)
{
if (m_toolTip is ToolTip toolTip)
{
toolTip.Content = GetToolTipString();
// ToolTip doesn't currently provide any way to re-run its placement logic if its placement target moves,
// so toggling IsEnabled induces it to do that without incurring any visual glitches.
toolTip.IsEnabled = false;
toolTip.IsEnabled = true;
}
DependencyObject currentObject = this;
ColorPicker owningColorPicker = null;
while (currentObject != null && (owningColorPicker = currentObject as ColorPicker) == null)
{
currentObject = VisualTreeHelper.GetParent(currentObject);
}
if (owningColorPicker != null)
{
Color oldColor = owningColorPicker.Color;
Hsv hsv = ColorConversion.RgbToHsv(ColorConversion.RgbFromColor(oldColor));
hsv.V = args.NewValue / 100.0;
Color newColor = ColorConversion.ColorFromRgba(ColorConversion.HsvToRgb(hsv));
ColorPickerSliderAutomationPeer peer = FrameworkElementAutomationPeer.FromElement(this) as ColorPickerSliderAutomationPeer;
peer.RaisePropertyChangedEvent(oldColor, newColor, (int)(Math.Round(args.OldValue)), (int)(Math.Round(args.NewValue)));
}
}
private string GetToolTipString()
{
uint sliderValue = (uint)(Math.Round(this.Value));
if (this.ColorChannel == ColorPickerHsvChannel.Alpha)
{
return(StringUtil.FormatString(
ResourceAccessor.GetLocalizedStringResource(ResourceAccessor.SR_ToolTipStringAlphaSlider),
sliderValue));
}
else
{
ColorPicker parentColorPicker = GetParentColorPicker();
if (parentColorPicker != null && DownlevelHelper.ToDisplayNameExists())
{
Hsv currentHsv = parentColorPicker.GetCurrentHsv();
string localizedString;
switch (this.ColorChannel)
{
case ColorPickerHsvChannel.Hue:
currentHsv.H = this.Value;
localizedString = ResourceAccessor.GetLocalizedStringResource(ResourceAccessor.SR_ToolTipStringHueSliderWithColorName);
break;
case ColorPickerHsvChannel.Saturation:
localizedString = ResourceAccessor.GetLocalizedStringResource(ResourceAccessor.SR_ToolTipStringSaturationSliderWithColorName);
currentHsv.S = this.Value / 100;
break;
case ColorPickerHsvChannel.Value:
localizedString = ResourceAccessor.GetLocalizedStringResource(ResourceAccessor.SR_ToolTipStringValueSliderWithColorName);
currentHsv.V = this.Value / 100;
break;
default:
throw new InvalidOperationException("Invalid ColorPickerHsvChannel."); // Uno Doc: 'throw winrt::hresult_error(E_FAIL);'
}
return(StringUtil.FormatString(
localizedString,
sliderValue,
ColorHelper.ToDisplayName(ColorConversion.ColorFromRgba(ColorConversion.HsvToRgb(currentHsv)))));
}
else
{
string localizedString;
switch (this.ColorChannel)
{
case ColorPickerHsvChannel.Hue:
localizedString = ResourceAccessor.GetLocalizedStringResource(ResourceAccessor.SR_ToolTipStringHueSliderWithoutColorName);
break;
case ColorPickerHsvChannel.Saturation:
localizedString = ResourceAccessor.GetLocalizedStringResource(ResourceAccessor.SR_ToolTipStringSaturationSliderWithoutColorName);
break;
case ColorPickerHsvChannel.Value:
localizedString = ResourceAccessor.GetLocalizedStringResource(ResourceAccessor.SR_ToolTipStringValueSliderWithoutColorName);
break;
default:
throw new InvalidOperationException("Invalid ColorPickerHsvChannel."); // Uno Doc: 'throw winrt::hresult_error(E_FAIL);'
}
return(StringUtil.FormatString(
localizedString,
sliderValue));
}
}
}
