public void SubtractDefaultFromDistinct(FlagProperties defaultFlags, Property[] defaultProperties)
{
var overridenFlagsPropertiesMask = defaultFlags ^ distinctFlagProperties;
var newDistinctFlagProperties = (distinctFlagProperties & overridenFlagsPropertiesMask) | (distinctFlagProperties & ~defaultFlags);
if (distinctFlagProperties != newDistinctFlagProperties)
{
PushUndoEntry(PropertyUndoEntry.DistinctFlagPropertiesFakeId, distinctFlagProperties);
distinctFlagProperties = newDistinctFlagProperties;
}
if (defaultProperties != null)
{
var savedDistinctMask = false;
foreach (var prop in defaultProperties)
{
if (distinctPropertyMask.IsSet(prop.Id) && properties[(int)(prop.Id - PropertyBitMask.FirstNonFlag)] == prop.Value)
{
if (!savedDistinctMask)
{
PushUndoEntry(distinctPropertyMask);
savedDistinctMask = true;
}
distinctPropertyMask.Clear(prop.Id);
}
}
}
}
public void UndoProperties(int undoLevel)
{
InternalDebug.Assert(undoLevel <= propertyUndoStackTop);
for (var i = propertyUndoStackTop - 1; i >= undoLevel; i--)
{
if (propertyUndoStack[i].IsFlags)
{
flagProperties = propertyUndoStack[i].flags.flags;
}
else if (propertyUndoStack[i].IsDistinctFlags)
{
distinctFlagProperties = propertyUndoStack[i].flags.flags;
}
else if (propertyUndoStack[i].IsDistinctMask1)
{
distinctPropertyMask.Set1(propertyUndoStack[i].bits.bits);
}
else if (propertyUndoStack[i].IsDistinctMask2)
{
distinctPropertyMask.Set2(propertyUndoStack[i].bits.bits);
}
else
{
if (propertyUndoStack[i].property.Value.IsNull)
{
propertyMask.Clear(propertyUndoStack[i].property.Id);
}
else
{
properties[(int)(propertyUndoStack[i].property.Id - PropertyBitMask.FirstNonFlag)] = propertyUndoStack[i].property.Value;
propertyMask.Set(propertyUndoStack[i].property.Id);
}
}
}
propertyUndoStackTop = undoLevel;
}
public int ApplyProperties(FlagProperties flagProperties, Property[] propList, FlagProperties flagInheritanceMask, PropertyBitMask propertyInheritanceMask)
{
var undoStackPosition = propertyUndoStackTop;
var allInheritedFlagProperties = this.flagProperties & flagInheritanceMask;
var newEffectiveFlagProperties = allInheritedFlagProperties | flagProperties;
if (newEffectiveFlagProperties != this.flagProperties)
{
PushUndoEntry(PropertyUndoEntry.FlagPropertiesFakeId, this.flagProperties);
this.flagProperties = newEffectiveFlagProperties;
}
var overridenFlagsPropertiesMask = allInheritedFlagProperties ^ flagProperties;
var newDistinctFlagProperties = (flagProperties & overridenFlagsPropertiesMask) | (flagProperties & ~allInheritedFlagProperties);
if (newDistinctFlagProperties != distinctFlagProperties)
{
PushUndoEntry(PropertyUndoEntry.DistinctFlagPropertiesFakeId, distinctFlagProperties);
distinctFlagProperties = newDistinctFlagProperties;
}
var maskedOutProperties = propertyMask & ~propertyInheritanceMask;
foreach (var propId in maskedOutProperties)
{
PushUndoEntry(propId, properties[(int)(propId - PropertyBitMask.FirstNonFlag)]);
}
var newDistinctPropertyMask = PropertyBitMask.AllOff;
propertyMask &= propertyInheritanceMask;
if (propList != null)
{
foreach (var prop in propList)
{
if (propertyMask.IsSet(prop.Id))
{
if (properties[(int)(prop.Id - PropertyBitMask.FirstNonFlag)] != prop.Value)
{
PushUndoEntry(prop.Id, properties[(int)(prop.Id - PropertyBitMask.FirstNonFlag)]);
if (prop.Value.IsNull)
{
propertyMask.Clear(prop.Id);
}
else
{
properties[(int)(prop.Id - PropertyBitMask.FirstNonFlag)] = prop.Value;
newDistinctPropertyMask.Set(prop.Id);
}
}
}
else if (!prop.Value.IsNull)
{
if (!maskedOutProperties.IsSet(prop.Id))
{
PushUndoEntry(prop.Id, PropertyValue.Null);
}
properties[(int)(prop.Id - PropertyBitMask.FirstNonFlag)] = prop.Value;
propertyMask.Set(prop.Id);
newDistinctPropertyMask.Set(prop.Id);
}
}
}
if (newDistinctPropertyMask != distinctPropertyMask)
{
PushUndoEntry(distinctPropertyMask);
distinctPropertyMask = newDistinctPropertyMask;
}
return(undoStackPosition);
}