protected override void UpdateBackground()
{
// background color change must be handled separately
// because the background would protrude through the border if the corners are rounded
// as the background would be applied to the renderer's FrameworkElement
var pancake = (PancakeView)Element;
if (Control != null)
{
if ((pancake.BackgroundGradientStartColor != default(Color) && pancake.BackgroundGradientEndColor != default(Color)) || (pancake.BackgroundGradientStops != null && pancake.BackgroundGradientStops.Any()))
{
// Create a gradient layer that draws our background.
if (pancake.BackgroundGradientStops != null && pancake.BackgroundGradientStops.Count > 0)
{
// A range of colors is given. Let's add them.
var orderedStops = pancake.BackgroundGradientStops.OrderBy(x => x.Offset).ToList();
var gc = new System.Windows.Media.GradientStopCollection();
foreach (var item in orderedStops)
{
gc.Add(new System.Windows.Media.GradientStop {
Offset = item.Offset, Color = item.Color.ToMediaColor()
});
}
this.Control.Background = new LinearGradientBrush(gc, pancake.BackgroundGradientAngle);
}
else
{
var gs1 = new System.Windows.Media.GradientStop {
Offset = 0, Color = pancake.BackgroundGradientStartColor.ToMediaColor()
};
var gs2 = new System.Windows.Media.GradientStop {
Offset = 1, Color = pancake.BackgroundGradientEndColor.ToMediaColor()
};
var gc = new System.Windows.Media.GradientStopCollection {
gs1, gs2
};
this.Control.Background = new LinearGradientBrush(gc, pancake.BackgroundGradientAngle);
}
}
else
{
Control.Background = Element.BackgroundColor.IsDefault ? null : Element.BackgroundColor.ToBrush();
}
}
}
private void UpdateBorder(PancakeView pancake)
{
//// Create the border layer
if (Control != null)
{
this.Control.BorderThickness = new System.Windows.Thickness(pancake.BorderThickness);
if ((pancake.BorderGradientStartColor != default(Color) && pancake.BorderGradientEndColor != default(Color)) || (pancake.BorderGradientStops != null && pancake.BorderGradientStops.Any()))
{
// Create a gradient layer that draws our background.
if (pancake.BorderGradientStops != null && pancake.BorderGradientStops.Count > 0)
{
// A range of colors is given. Let's add them.
var orderedStops = pancake.BorderGradientStops.OrderBy(x => x.Offset).ToList();
var gc = new System.Windows.Media.GradientStopCollection();
foreach (var item in orderedStops)
{
gc.Add(new System.Windows.Media.GradientStop {
Offset = item.Offset, Color = item.Color.ToMediaColor()
});
}
this.Control.BorderBrush = new LinearGradientBrush(gc, pancake.BorderGradientAngle);
}
else
{
var gs1 = new System.Windows.Media.GradientStop {
Offset = 0, Color = pancake.BorderGradientStartColor.ToMediaColor()
};
var gs2 = new System.Windows.Media.GradientStop {
Offset = 1, Color = pancake.BorderGradientEndColor.ToMediaColor()
};
var gc = new System.Windows.Media.GradientStopCollection {
gs1, gs2
};
this.Control.BorderBrush = new LinearGradientBrush(gc, pancake.BorderGradientAngle);
}
}
else
{
this.Control.BorderBrush = pancake.BorderColor.IsDefault ? null : pancake.BorderColor.ToBrush();
}
}
}
/// <summary>
/// Parse - returns an instance converted from the provided string
/// using the current culture
/// <param name="source"> string with GradientStopCollection data </param>
/// </summary>
public static GradientStopCollection Parse(string source)
{
IFormatProvider formatProvider = System.Windows.Markup.TypeConverterHelper.InvariantEnglishUS;
TokenizerHelper th = new TokenizerHelper(source, formatProvider);
GradientStopCollection resource = new GradientStopCollection();
GradientStop value;
while (th.NextToken())
{
value = new GradientStop(
Parsers.ParseColor(th.GetCurrentToken(), formatProvider),
Convert.ToDouble(th.NextTokenRequired(), formatProvider));
resource.Add(value);
}
return(resource);
}
private void UpdateBorder(PancakeView pancake)
{
//// Create the border layer
if (Control != null && pancake?.Border != null)
{
this.Control.BorderThickness = new System.Windows.Thickness(pancake.Border.Thickness);
if (pancake.Border.GradientStops != null && pancake.Border.GradientStops.Any())
{
// Create a gradient layer that draws our background.
if (pancake.Border.GradientStops != null && pancake.Border.GradientStops.Count > 0)
{
// A range of colors is given. Let's add them.
var orderedStops = pancake.Border.GradientStops.OrderBy(x => x.Offset).ToList();
var gc = new System.Windows.Media.GradientStopCollection();
foreach (var item in orderedStops)
{
gc.Add(new System.Windows.Media.GradientStop {
Offset = item.Offset, Color = item.Color.ToMediaColor()
});
}
var gradient = new System.Windows.Media.LinearGradientBrush(gc, 0)
{
StartPoint = new System.Windows.Point(pancake.Border.GradientStartPoint.X,
pancake.Border.GradientStartPoint.Y),
EndPoint = new System.Windows.Point(pancake.Border.GradientEndPoint.X,
pancake.Border.GradientEndPoint.Y)
};
this.Control.BorderBrush = gradient;
}
}
else
{
this.Control.BorderBrush = pancake.Border.Color.IsDefault ? null : pancake.Border.Color.ToBrush();
}
}
}
public static M.Brush DrawingBrushToMediaBrush(D.Brush in_brush)
{
if (in_brush is D.SolidBrush)
{
M.SolidColorBrush brush = new M.SolidColorBrush(
ColorUtils.DrawingColorToMediaColor((in_brush as D.SolidBrush).Color)
);
return(brush);
}
else if (in_brush is D.Drawing2D.LinearGradientBrush)
{
D.Drawing2D.LinearGradientBrush lgb = (in_brush as D.Drawing2D.LinearGradientBrush);
System.Windows.Point starting_point = new System.Windows.Point(
lgb.Rectangle.X,
lgb.Rectangle.Y
);
System.Windows.Point ending_point = new System.Windows.Point(
lgb.Rectangle.Right,
lgb.Rectangle.Bottom
);
M.GradientStopCollection collection = new M.GradientStopCollection();
try
{
if (lgb.InterpolationColors != null && lgb.InterpolationColors.Colors.Length == lgb.InterpolationColors.Positions.Length)
{
for (int x = 0; x < lgb.InterpolationColors.Colors.Length; x++)
{
collection.Add(
new M.GradientStop(
ColorUtils.DrawingColorToMediaColor(lgb.InterpolationColors.Colors[x]),
lgb.InterpolationColors.Positions[x]
)
);
}
}
}
catch (Exception exc)
{
for (int x = 0; x < lgb.LinearColors.Length; x++)
{
collection.Add(
new M.GradientStop(
ColorUtils.DrawingColorToMediaColor(lgb.LinearColors[x]),
x / (double)(lgb.LinearColors.Length - 1)
)
);
}
}
M.LinearGradientBrush brush = new M.LinearGradientBrush(
collection,
starting_point,
ending_point
);
return(brush);
}
else if (in_brush is D.Drawing2D.PathGradientBrush)
{
D.Drawing2D.PathGradientBrush pgb = (in_brush as D.Drawing2D.PathGradientBrush);
System.Windows.Point starting_point = new System.Windows.Point(
pgb.CenterPoint.X,
pgb.CenterPoint.Y
);
M.GradientStopCollection collection = new M.GradientStopCollection();
if (pgb.InterpolationColors != null && pgb.InterpolationColors.Colors.Length == pgb.InterpolationColors.Positions.Length)
{
for (int x = 0; x < pgb.InterpolationColors.Colors.Length; x++)
{
collection.Add(
new M.GradientStop(
ColorUtils.DrawingColorToMediaColor(pgb.InterpolationColors.Colors[x]),
pgb.InterpolationColors.Positions[x]
)
);
}
}
M.RadialGradientBrush brush = new M.RadialGradientBrush(
collection
);
brush.Center = starting_point;
return(brush);
}
else
{
return(new M.SolidColorBrush(System.Windows.Media.Color.FromArgb(255, 255, 0, 0))); //Return error color
}
}
/// <summary>
/// Apply settings to a panel
/// </summary>
/// <param name="settings">the custom caption settings</param>
/// <param name="isRoot">is this the root panel</param>
/// <param name="panel">the panel</param>
private void ApplyPanel(CustomCaptionSettings settings, bool isRoot, StackPanel panel)
{
var children = System.Convert.ToDouble(panel.Children.Count);
var startIndex = -1;
var endIndex = -1;
var index = 0;
foreach (var item in panel.Children)
{
bool empty = IsRowEmpty(item);
if (!empty && startIndex == -1)
{
startIndex = index;
}
if (!empty)
{
endIndex = index + 1;
}
this.ApplySettings(item, settings, panel);
index++;
}
if (isRoot && settings.WindowColor != null)
{
if (startIndex >= 0 && endIndex >= 0)
{
var startPercentage = Math.Max(0.0, (System.Convert.ToDouble(startIndex) / children) - 0.01);
var endPercentage = Math.Min(1.0, (System.Convert.ToDouble(endIndex) / children) + 0.01);
var gradientStops = new Media.GradientStopCollection();
var color = settings.WindowColor.ToColor();
gradientStops.Add(new Media.GradientStop
{
Color = Colors.Transparent,
Offset = startPercentage
});
gradientStops.Add(new Media.GradientStop
{
Color = color,
Offset = startPercentage
});
gradientStops.Add(new Media.GradientStop
{
Color = color,
Offset = endPercentage
});
gradientStops.Add(new Media.GradientStop
{
Color = Colors.Transparent,
Offset = endPercentage
});
panel.Background = new Media.LinearGradientBrush(gradientStops, 90);
}
}
}
/// <summary>
/// Apply settings to a panel
/// </summary>
/// <param name="settings">the custom caption settings</param>
/// <param name="isRoot">is this the root panel</param>
/// <param name="panel">the panel</param>
private void ApplyPanel(CustomCaptionSettings settings, bool isRoot, StackPanel panel)
{
var children = System.Convert.ToDouble(panel.Children.Count);
var startIndex = -1;
var endIndex = -1;
var index = 0;
foreach (var item in panel.Children)
{
bool empty = IsRowEmpty(item);
if (!empty && startIndex == -1)
{
startIndex = index;
}
if (!empty)
{
endIndex = index + 1;
}
this.ApplySettings(item, settings, panel);
index++;
}
if (isRoot && settings.WindowColor != null)
{
if (startIndex >= 0 && endIndex >= 0)
{
var startPercentage = Math.Max(0.0, (System.Convert.ToDouble(startIndex) / children) - 0.01);
var endPercentage = Math.Min(1.0, (System.Convert.ToDouble(endIndex) / children) + 0.01);
var gradientStops = new Media.GradientStopCollection();
var color = settings.WindowColor.ToColor();
gradientStops.Add(new Media.GradientStop
{
Color = Colors.Transparent,
Offset = startPercentage
});
gradientStops.Add(new Media.GradientStop
{
Color = color,
Offset = startPercentage
});
gradientStops.Add(new Media.GradientStop
{
Color = color,
Offset = endPercentage
});
gradientStops.Add(new Media.GradientStop
{
Color = Colors.Transparent,
Offset = endPercentage
});
panel.Background = new Media.LinearGradientBrush(gradientStops, 90);
}
}
}
