/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
var list = value as CSSValueList;
var v1 = value;
var v2 = value;
if (list != null)
{
if (list.Length != 2)
return false;
v1 = list[0];
v2 = list[1];
}
var c1 = v1.AsCalc();
var c2 = v2.AsCalc();
if (c1 != null && c2 != null)
{
_h = c1;
_v = c2;
}
else if (value != CSSValue.Inherit)
return false;
return true;
}
internal CSSPerspectiveOriginProperty()
: base(PropertyNames.PerspectiveOrigin)
{
_inherited = false;
_x = CSSCalcValue.Center;
_y = CSSCalcValue.Center;
}
internal CSSBorderRadiusPartProperty(String name)
: base(name)
{
_inherited = false;
_h = CSSCalcValue.Zero;
_v = CSSCalcValue.Zero;
}
internal CSSFontSizeProperty()
: base(PropertyNames.FontSize)
{
_mode = FontSize.Medium;
_size = null;
_inherited = true;
}
internal CSSTransformOriginProperty()
: base(PropertyNames.TransformOrigin)
{
_inherited = false;
_x = CSSCalcValue.Center;
_y = CSSCalcValue.Center;
_z = CSSCalcValue.Zero;
}
/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
var calc = value.AsCalc();
if (calc != null)
_mode = calc;
else if (value != CSSValue.Inherit)
return false;
return true;
}
internal CSSBorderRadiusProperty()
: base(PropertyNames.BorderRadius)
{
_inherited = false;
_topRightHorizontal = CSSCalcValue.Zero;
_bottomRightHorizontal = CSSCalcValue.Zero;
_bottomLeftHorizontal = CSSCalcValue.Zero;
_topLeftHorizontal = CSSCalcValue.Zero;
_topRightVertical = CSSCalcValue.Zero;
_bottomRightVertical = CSSCalcValue.Zero;
_bottomLeftVertical = CSSCalcValue.Zero;
_topLeftVertical = CSSCalcValue.Zero;
}
/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
//TODO
//UNITLESS in QUIRKSMODE
var calc = value.AsCalc();
if (calc != null)
_value = calc;
else if (value.Is("auto"))
_value = null;
else if (value != CSSValue.Inherit)
return false;
return true;
}
protected override Boolean IsValid(CSSValue value)
{
//TODO
//UNITLESS in QUIRKSMODE
var calc = value.AsCalc();
if (calc != null)
{
_margin = calc;
}
else if (value.Is("auto"))
{
_margin = null;
}
else if (value != CSSValue.Inherit)
{
return(false);
}
return(true);
}
/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
//TODO
//UNITLESS in QUIRKSMODE
FontSize? size;
var calc = value.AsCalc();
if (calc != null)
{
_size = calc;
_mode = FontSize.Custom;
}
else if ((size = value.ToFontSize()).HasValue)
{
_size = null;
_mode = size.Value;
}
else if (value != CSSValue.Inherit)
return false;
return true;
}
protected override Boolean IsValid(CSSValue value)
{
//TODO
//UNITLESS in QUIRKSMODE
FontSizeMode size;
CSSCalcValue calc = value.AsCalc();
if (calc != null)
{
_size = new CalcFontSizeMode(calc);
}
else if (value is CSSIdentifierValue && _sizes.TryGetValue(((CSSIdentifierValue)value).Value, out size))
{
_size = size;
}
else if (value != CSSValue.Inherit)
{
return(false);
}
return(true);
}
protected override Boolean IsValid(CSSValue value)
{
CSSCalcValue calc = value.AsCalc();
if (calc != null)
{
_mode = new CalcLineHeightMode(calc);
}
else if (value.Is("normal"))
{
_mode = _normal;
}
else if (value.ToNumber().HasValue)
{
_mode = new MultipleLineHeightMode(value.ToNumber().Value);
}
else if (value != CSSValue.Inherit)
{
return(false);
}
return(true);
}
Boolean SetXY(CSSValueList list)
{
if (list.Length == 2)
{
var x = GetMode(list[0], "left", "right");
var y = GetMode(list[1], "top", "bottom");
if (y == null || x == null)
{
x = GetMode(list[1], "left", "right");
y = GetMode(list[0], "top", "bottom");
}
if (x != null && y != null)
{
_x = x;
_y = y;
return(true);
}
}
return(false);
}
Boolean SetXYZ(CSSValueList list)
{
var z = CSSCalcValue.Zero;
if (list.Length == 3)
{
if (!list[2].ToLength().HasValue)
{
return(false);
}
z = list[2].AsCalc();
}
if (z != CSSCalcValue.Zero || list.Length == 2)
{
var x = GetMode(list[0], "left", "right");
var y = GetMode(list[1], "top", "bottom");
if (y == null || x == null)
{
x = GetMode(list[1], "left", "right");
y = GetMode(list[0], "top", "bottom");
}
if (x != null && y != null)
{
_x = x;
_y = y;
_z = z;
return(true);
}
}
return(false);
}
protected CSSMarginPartProperty(String name)
: base(name)
{
_inherited = false;
_margin = CSSCalcValue.Zero;
}
Boolean SetSingle(CSSValue value)
{
var calc = value.AsCalc();
if (calc != null)
{
_x = calc;
_y = calc;
return true;
}
else if (value is CSSIdentifierValue)
{
var ident = ((CSSIdentifierValue)value).Value;
switch (ident.ToLower())
{
case "left":
_x = CSSCalcValue.Zero;
_y = CSSCalcValue.Center;
return true;
case "center":
_x = CSSCalcValue.Center;
_y = CSSCalcValue.Center;
return true;
case "right":
_x = CSSCalcValue.Full;
_y = CSSCalcValue.Center;
return true;
case "top":
_x = CSSCalcValue.Center;
_y = CSSCalcValue.Zero;
return true;
case "bottom":
_x = CSSCalcValue.Center;
_y = CSSCalcValue.Full;
return true;
}
}
return false;
}
public CalcCoordinateMode(CSSCalcValue calc)
{
_calc = calc;
}
internal CSSMinWidthProperty()
: base(PropertyNames.MinWidth)
{
_inherited = false;
_mode = CSSCalcValue.Zero;
}
internal CSSTextIndentProperty()
: base(PropertyNames.TextIndent)
{
_inherited = true;
_indent = CSSCalcValue.Zero;
}
protected CSSPaddingPartProperty(String name)
: base(name)
{
_inherited = false;
_padding = CSSCalcValue.Zero;
}
public RadialLinearGradient(CSSCalcValue x, CSSCalcValue y, CSSCalcValue width, CSSCalcValue height, GradientStop[] stops, Boolean repeating)
{
_stops = stops;
_x = x;
_y = y;
_width = width;
_height = height;
_repeating = repeating;
}
internal CSSMaxHeightProperty()
: base(PropertyNames.MaxHeight)
{
_inherited = false;
_mode = null;
}
internal CSSCoordinateProperty(String name)
: base(name)
{
_inherited = false;
_value = null;
}
Boolean Check(CSSValueList arguments)
{
var count = arguments.Length;
var splitIndex = arguments.Length;
for (var i = 0; i < splitIndex; i++)
if (arguments[i] == CSSValue.Delimiter)
splitIndex = i;
if (count - 1 > splitIndex + 4 || splitIndex > 4 || splitIndex == count - 1 || splitIndex == 0)
return false;
var values = new CSSCalcValue[4];
for (int i = 0; i < splitIndex; i++)
{
values[i] = arguments[i].AsCalc();
for (int j = 2 * i + 1; j < 4; j += i + 1)
values[j] = values[i];
if (values[i] == null)
return false;
}
_topLeftHorizontal = values[0];
_topRightHorizontal = values[1];
_bottomRightHorizontal = values[2];
_bottomLeftHorizontal = values[3];
if (splitIndex != count)
{
splitIndex++;
count -= splitIndex;
for (int i = 0; i < count; i++)
{
values[i] = arguments[i + splitIndex].AsCalc();
for (int j = 2 * i + 1; j < 4; j += i + 1)
values[j] = values[i];
if (values[i] == null)
return false;
}
}
_topLeftVertical = values[0];
_topRightVertical = values[1];
_bottomRightVertical = values[2];
_bottomLeftVertical = values[3];
return true;
}
/// <summary>
/// Determines if the given value represents a valid state of this property.
/// </summary>
/// <param name="value">The state that should be used.</param>
/// <returns>True if the state is valid, otherwise false.</returns>
protected override Boolean IsValid(CSSValue value)
{
if (value == CSSValue.Inherit)
return true;
else if (value is CSSValueList)
return Check((CSSValueList)value);
var calc = value.AsCalc();
if (calc == null)
return false;
_bottomLeftHorizontal = _bottomLeftVertical = _bottomRightHorizontal = _bottomRightVertical = _topLeftHorizontal = _topLeftVertical = _topRightHorizontal = _topRightVertical = calc;
return true;
}
/// <summary>
/// Creates a new gradient stop.
/// </summary>
/// <param name="color">The color of the stop.</param>
/// <param name="location">The location of the stop.</param>
public GradientStop(Color color, CSSCalcValue location)
{
_color = color;
_location = location;
}
public CalcLineHeightMode(CSSCalcValue calc)
{
_calc = calc;
}
internal CSSMinHeightProperty()
: base(PropertyNames.MinHeight)
{
_inherited = false;
_mode = CSSCalcValue.Zero;
}
/// <summary>
/// The auto keyword that scales the background image in the corresponding
/// direction such that its intrinsic proportion is maintained.
/// </summary>
public CalcSizeMode(CSSCalcValue width = null, CSSCalcValue height = null)
{
_width = width;
_height = height;
}
internal CSSMaxHeightProperty()
: base(PropertyNames.MaxHeight)
{
_inherited = false;
_mode = null;
}
public CalcFontSizeMode(CSSCalcValue calc)
{
_calc = calc;
}
/// <summary>
/// The auto keyword that scales the background image in the corresponding
/// direction such that its intrinsic proportion is maintained.
/// </summary>
public CalcSizeMode(CSSCalcValue width = null, CSSCalcValue height = null)
{
_width = width;
_height = height;
}
public CalcImageWidthMode(CSSCalcValue calc)
{
_calc = calc;
}
Boolean SetXY(CSSValueList list)
{
if (list.Length == 2)
{
var x = GetMode(list[0], "left", "right");
var y = GetMode(list[1], "top", "bottom");
if (y == null || x == null)
{
x = GetMode(list[1], "left", "right");
y = GetMode(list[0], "top", "bottom");
}
if (x != null && y != null)
{
_x = x;
_y = y;
return true;
}
}
return false;
}
/// <summary>
/// Creates a new image value from a radial gradient.
/// </summary>
/// <param name="x">The x-coordinate.</param>
/// <param name="y">The y-coordinate.</param>
/// <param name="width">The width of the ellipse.</param>
/// <param name="height">The height of the ellipse.</param>
/// <param name="repeating">The repeating setting.</param>
/// <param name="stops">A collection of stops to use.</param>
/// <returns>A new image value using a radial gradient.</returns>
public static CSSImageValue FromRadialGradient(CSSCalcValue x, CSSCalcValue y, CSSCalcValue width, CSSCalcValue height, Boolean repeating, params GradientStop[] stops)
{
return new RadialLinearGradient(x, y, width, height, stops, repeating);
}
public CalcImageWidthMode(CSSCalcValue calc)
{
_calc = calc;
}
internal CSSMaxWidthProperty()
: base(PropertyNames.MaxWidth)
{
_inherited = false;
_mode = null;
}
Boolean SetXYZ(CSSValueList list)
{
var z = CSSCalcValue.Zero;
if (list.Length == 3)
{
if (!list[2].ToLength().HasValue)
return false;
z = list[2].AsCalc();
}
if (z != CSSCalcValue.Zero || list.Length == 2)
{
var x = GetMode(list[0], "left", "right");
var y = GetMode(list[1], "top", "bottom");
if (y == null || x == null)
{
x = GetMode(list[1], "left", "right");
y = GetMode(list[0], "top", "bottom");
}
if (x != null && y != null)
{
_x = x;
_y = y;
_z = z;
return true;
}
}
return false;
}