public static void ApplyFloatOrKeyword(StyleSheet sheet, StyleValueHandle[] handles, int specificity, ref StyleValue <FloatOrKeyword> property)
{
var handle = handles[0];
FloatOrKeyword fk;
if (handle.valueType == StyleValueType.Keyword)
{
fk = new FloatOrKeyword((StyleValueKeyword)handle.valueIndex);
}
else
{
fk = new FloatOrKeyword(sheet.ReadFloat(handle));
}
Apply(fk, specificity, ref property);
}
public static bool CompileFlexShorthand(StyleSheet sheet, StyleValueHandle[] handles, out float grow, out float shrink, out FloatOrKeyword basis)
{
grow = 0f;
shrink = 0f;
basis = new FloatOrKeyword(StyleValueKeyword.Auto);
bool valid = false;
if (handles.Length == 1 && handles[0].valueType == StyleValueType.Keyword && handles[0].valueIndex == (int)StyleValueKeyword.Unset)
{
valid = true;
grow = 0f;
shrink = 1f;
basis = new FloatOrKeyword(StyleValueKeyword.Auto);
}
else if (handles.Length == 1 && handles[0].valueType == StyleValueType.Keyword && handles[0].valueIndex == (int)StyleValueKeyword.None)
{
valid = true;
grow = 0f;
shrink = 0f;
basis = new FloatOrKeyword(StyleValueKeyword.Auto);
}
else if (handles.Length <= 3 && handles[0].valueType == StyleValueType.Keyword && handles[0].valueIndex == (int)StyleValueKeyword.Auto)
{
valid = true;
basis = new FloatOrKeyword(StyleValueKeyword.Auto);
grow = 1f;
shrink = 1f;
if (handles.Length > 1)
{
grow = sheet.ReadFloat(handles[1]);
if (handles.Length > 2)
{
shrink = sheet.ReadFloat(handles[2]);
}
}
}
else if (handles.Length <= 3 && handles[0].valueType == StyleValueType.Float)
{
valid = true;
// TODO: when support for units is implemented, basis must have units, grow and shrink are unitless.
// This will remove ambiguities. For now we assume (when all values are number)
//
// flex: grow (could be flex: basis)
// flex: grow shrink (could be flex: basis grow; or flex: grow basis)
// flex: grow shrink basis (could be flex: basis grow shrink)
grow = sheet.ReadFloat(handles[0]);
shrink = 1f;
basis = new FloatOrKeyword(0f);
if (handles.Length > 1)
{
if (handles[1].valueType == StyleValueType.Float)
{
shrink = sheet.ReadFloat(handles[1]);
if (handles.Length > 2)
{
if (handles[2].valueType == StyleValueType.Keyword && handles[2].valueIndex == (int)StyleValueKeyword.Auto)
{
basis = new FloatOrKeyword(StyleValueKeyword.Auto);
}
else if (handles[2].valueType == StyleValueType.Float)
{
basis = new FloatOrKeyword(sheet.ReadFloat(handles[2]));
}
}
}
else if (handles[1].valueType == StyleValueType.Keyword && handles[1].valueIndex == (int)StyleValueKeyword.Auto)
{
basis = new FloatOrKeyword(StyleValueKeyword.Auto);
}
}
}
return(valid);
}
