void UpdateCancelButtonColor()
{
if (_cancelButton == null || !_cancelButton.IsReady)
{
return;
}
Color cancelColor = Element.CancelButtonColor;
BrushHelpers.UpdateColor(cancelColor, ref _defaultDeleteButtonForegroundColorBrush,
() => _cancelButton.ForegroundBrush, brush => _cancelButton.ForegroundBrush = brush);
if (cancelColor.IsDefault)
{
BrushHelpers.UpdateColor(Color.Default, ref _defaultDeleteButtonBackgroundColorBrush,
() => _cancelButton.BackgroundBrush, brush => _cancelButton.BackgroundBrush = brush);
}
else
{
// Determine whether the background should be black or white (in order to make the foreground color visible)
var bcolor = cancelColor.ToWindowsColor().GetContrastingColor().ToFormsColor();
BrushHelpers.UpdateColor(bcolor, ref _defaultDeleteButtonBackgroundColorBrush,
() => _cancelButton.BackgroundBrush, brush => _cancelButton.BackgroundBrush = brush);
}
}
void UpdateTextColor()
{
Color textColor = Element.TextColor;
BrushHelpers.UpdateColor(textColor, ref _textDefaultBrush,
() => Control.Foreground, brush => Control.Foreground = brush);
BrushHelpers.UpdateColor(textColor, ref _defaultTextColorFocusBrush,
() => Control.ForegroundFocusBrush, brush => Control.ForegroundFocusBrush = brush);
}
void UpdatePlaceholderColor()
{
Color placeholderColor = Element.PlaceholderColor;
BrushHelpers.UpdateColor(placeholderColor, ref _placeholderDefaultBrush,
() => Control.PlaceholderForegroundBrush, brush => Control.PlaceholderForegroundBrush = brush);
BrushHelpers.UpdateColor(placeholderColor, ref _defaultPlaceholderColorFocusBrush,
() => Control.PlaceholderForegroundFocusBrush, brush => Control.PlaceholderForegroundFocusBrush = brush);
}
protected override void UpdateBackgroundColor()
{
base.UpdateBackgroundColor();
if (Control == null)
{
return;
}
// By default some platforms have alternate default background colors when focused
BrushHelpers.UpdateColor(Element.BackgroundColor, ref _backgroundColorFocusedDefaultBrush,
() => Control.BackgroundFocusBrush, brush => Control.BackgroundFocusBrush = brush);
}
void UpdateTextColor()
{
if (_queryTextBox == null)
{
return;
}
Color textColor = Element.TextColor;
BrushHelpers.UpdateColor(textColor, ref _defaultTextColorBrush,
() => _queryTextBox.Foreground, brush => _queryTextBox.Foreground = brush);
BrushHelpers.UpdateColor(textColor, ref _defaultTextColorFocusBrush,
() => _queryTextBox.ForegroundFocusBrush, brush => _queryTextBox.ForegroundFocusBrush = brush);
}
void UpdatePlaceholderColor()
{
if (_queryTextBox == null)
{
return;
}
Color placeholderColor = Element.PlaceholderColor;
BrushHelpers.UpdateColor(placeholderColor, ref _defaultPlaceholderColorBrush,
() => _queryTextBox.PlaceholderForegroundBrush, brush => _queryTextBox.PlaceholderForegroundBrush = brush);
BrushHelpers.UpdateColor(placeholderColor, ref _defaultPlaceholderColorFocusBrush,
() => _queryTextBox.PlaceholderForegroundFocusBrush, brush => _queryTextBox.PlaceholderForegroundFocusBrush = brush);
}
void UpdateThumbColor()
{
if (Element == null)
{
return;
}
var thumb = Control?.Thumb;
if (thumb == null)
{
return;
}
BrushHelpers.UpdateColor(Element.ThumbColor, ref _defaultThumbColor,
() => thumb.Background, brush => thumb.Background = brush);
}
void UpdateTintColor()
{
BrushHelpers.UpdateColor(Element.Color, ref _tintDefaultBrush,
() => Control.TintBrush, brush => Control.TintBrush = brush);
}