// Decorates the composition with IME specified underlining.
private void SetCompositionAdorner(int[] clauseInfo, byte[] attributes)
{
if ((clauseInfo != null) && (attributes != null))
{
for (int i = 0; i < clauseInfo.Length - 1; i++)
{
ITextPointer startClause = _startComposition.CreatePointer(clauseInfo[i], LogicalDirection.Backward);
ITextPointer endClause = _startComposition.CreatePointer(clauseInfo[i + 1], LogicalDirection.Forward);
if (_compositionAdorner == null)
{
_compositionAdorner = new CompositionAdorner(_editor.TextView);
_compositionAdorner.Initialize(_editor.TextView);
}
//
//
UnsafeNativeMethods.TF_DISPLAYATTRIBUTE displayAttribute = new UnsafeNativeMethods.TF_DISPLAYATTRIBUTE();
displayAttribute.crLine.type = UnsafeNativeMethods.TF_DA_COLORTYPE.TF_CT_COLORREF;
displayAttribute.crLine.indexOrColorRef = 0;
displayAttribute.lsStyle = UnsafeNativeMethods.TF_DA_LINESTYLE.TF_LS_NONE;
displayAttribute.fBoldLine = false;
switch (attributes[clauseInfo[i]])
{
case NativeMethods.ATTR_INPUT:
displayAttribute.lsStyle = UnsafeNativeMethods.TF_DA_LINESTYLE.TF_LS_DOT;
break;
case NativeMethods.ATTR_TARGET_CONVERTED:
displayAttribute.lsStyle = UnsafeNativeMethods.TF_DA_LINESTYLE.TF_LS_SOLID;
displayAttribute.fBoldLine = true;
break;
case NativeMethods.ATTR_CONVERTED:
displayAttribute.lsStyle = UnsafeNativeMethods.TF_DA_LINESTYLE.TF_LS_SOLID;
break;
case NativeMethods.ATTR_TARGET_NOTCONVERTED:
displayAttribute.lsStyle = UnsafeNativeMethods.TF_DA_LINESTYLE.TF_LS_SOLID;
break;
case NativeMethods.ATTR_INPUT_ERROR:
break;
case NativeMethods.ATTR_FIXEDCONVERTED:
break;
}
#if UNUSED_IME_HIGHLIGHT_LAYER
// Demand create the highlight layer.
if (_highlightLayer == null)
{
_highlightLayer = new DisplayAttributeHighlightLayer();
}
// ToDo: Need to pass the foreground and background color of the composition
_highlightLayer.Add(startClause, endClause, /*TextDecorationCollection:*/null);
#endif
TextServicesDisplayAttribute textServiceDisplayAttribute = new TextServicesDisplayAttribute(displayAttribute);
// Add the attribute range into CompositionAdorner.
_compositionAdorner.AddAttributeRange(startClause, endClause, textServiceDisplayAttribute);
}
#if UNUSED_IME_HIGHLIGHT_LAYER
if (_highlightLayer != null)
{
_editor.TextContainer.Highlights.AddLayer(_highlightLayer);
}
#endif
if (_compositionAdorner != null)
{
// Update the layout to get the acurated rectangle from calling GetRectangleFromTextPosition
_editor.TextView.RenderScope.UpdateLayout();
// Invalidate the composition adorner to apply the composition attribute ranges.
_compositionAdorner.InvalidateAdorner();
}
}
}
internal override void OnEndEdit(UnsafeNativeMethods.ITfContext context,
int ecReadOnly,
UnsafeNativeMethods.ITfEditRecord editRecord)
{
Guid displayAttributeGuid;
UnsafeNativeMethods.ITfProperty displayAttributeProperty;
UnsafeNativeMethods.IEnumTfRanges attributeRangeEnumerator;
UnsafeNativeMethods.ITfRange[] attributeRanges;
int fetched;
int guidAtom;
TextServicesDisplayAttribute displayAttribute;
ITextPointer start;
ITextPointer end;
//
// Remove any existing display attribute highlights.
//
#if UNUSED_IME_HIGHLIGHT_LAYER
if (_highlightLayer != null)
{
this.TextStore.TextContainer.Highlights.RemoveLayer(_highlightLayer);
_highlightLayer = null;
}
#endif
//
// Remove any existing composition adorner for display attribute.
//
if (_compositionAdorner != null)
{
_compositionAdorner.Uninitialize();
_compositionAdorner = null;
}
//
// Look for new ones.
//
// Get the DisplayAttributeProperty.
displayAttributeGuid = Guid;
context.GetProperty(ref displayAttributeGuid, out displayAttributeProperty);
// Get a range enumerator for the property.
if (displayAttributeProperty.EnumRanges(ecReadOnly, out attributeRangeEnumerator, null) == NativeMethods.S_OK)
{
attributeRanges = new UnsafeNativeMethods.ITfRange[1];
// Walk each range.
while (attributeRangeEnumerator.Next(1, attributeRanges, out fetched) == NativeMethods.S_OK)
{
// Get a DisplayAttribute for this range.
guidAtom = GetInt32Value(ecReadOnly, displayAttributeProperty, attributeRanges[0]);
displayAttribute = GetDisplayAttribute(guidAtom);
if (displayAttribute != null && !displayAttribute.IsEmptyAttribute())
{
// Set a matching highlight for the attribute range.
ConvertToTextPosition(attributeRanges[0], out start, out end);
if (start != null)
{
#if UNUSED_IME_HIGHLIGHT_LAYER
// Demand create the highlight layer.
if (_highlightLayer == null)
{
_highlightLayer = new DisplayAttributeHighlightLayer();
}
#endif
if (_compositionAdorner == null)
{
_compositionAdorner = new CompositionAdorner(this.TextStore.TextView);
_compositionAdorner.Initialize(this.TextStore.TextView);
}
#if UNUSED_IME_HIGHLIGHT_LAYER
// ToDo: Need to pass the foreground and background color of the composition
_highlightLayer.Add(start, end, /*TextDecorationCollection:*/null);
#endif
// Add the attribute range into CompositionAdorner.
_compositionAdorner.AddAttributeRange(start, end, displayAttribute);
}
}
Marshal.ReleaseComObject(attributeRanges[0]);
}
#if UNUSED_IME_HIGHLIGHT_LAYER
if (_highlightLayer != null)
{
this.TextStore.TextContainer.Highlights.AddLayer(_highlightLayer);
}
#endif
if (_compositionAdorner != null)
{
// Update the layout to get the acurated rectangle from calling GetRectangleFromTextPosition
this.TextStore.RenderScope.UpdateLayout();
// Invalidate the composition adorner to render the composition attribute ranges.
_compositionAdorner.InvalidateAdorner();
}
Marshal.ReleaseComObject(attributeRangeEnumerator);
}
Marshal.ReleaseComObject(displayAttributeProperty);
}
/// <summary>
/// Calback function for TextEditSink
/// we track the property change here.
/// </summary>
internal override void OnEndEdit(UnsafeNativeMethods.ITfContext context,
int ecReadOnly,
UnsafeNativeMethods.ITfEditRecord editRecord)
{
Guid displayAttributeGuid;
UnsafeNativeMethods.ITfProperty displayAttributeProperty;
UnsafeNativeMethods.IEnumTfRanges attributeRangeEnumerator;
UnsafeNativeMethods.ITfRange[] attributeRanges;
int fetched;
int guidAtom;
TextServicesDisplayAttribute displayAttribute;
ITextPointer start;
ITextPointer end;
//
// Remove any existing display attribute highlights.
//
#if UNUSED_IME_HIGHLIGHT_LAYER
if (_highlightLayer != null)
{
this.TextStore.TextContainer.Highlights.RemoveLayer(_highlightLayer);
_highlightLayer = null;
}
#endif
//
// Remove any existing composition adorner for display attribute.
//
if (_compositionAdorner != null)
{
_compositionAdorner.Uninitialize();
_compositionAdorner = null;
}
//
// Look for new ones.
//
// Get the DisplayAttributeProperty.
displayAttributeGuid = Guid;
context.GetProperty(ref displayAttributeGuid, out displayAttributeProperty);
// Get a range enumerator for the property.
if (displayAttributeProperty.EnumRanges(ecReadOnly, out attributeRangeEnumerator, null) == NativeMethods.S_OK)
{
attributeRanges = new UnsafeNativeMethods.ITfRange[1];
// Walk each range.
while (attributeRangeEnumerator.Next(1, attributeRanges, out fetched) == NativeMethods.S_OK)
{
// Get a DisplayAttribute for this range.
guidAtom = GetInt32Value(ecReadOnly, displayAttributeProperty, attributeRanges[0]);
displayAttribute = GetDisplayAttribute(guidAtom);
if (displayAttribute != null && !displayAttribute.IsEmptyAttribute())
{
// Set a matching highlight for the attribute range.
ConvertToTextPosition(attributeRanges[0], out start, out end);
if (start != null)
{
#if UNUSED_IME_HIGHLIGHT_LAYER
// Demand create the highlight layer.
if (_highlightLayer == null)
{
_highlightLayer = new DisplayAttributeHighlightLayer();
}
#endif
if (_compositionAdorner == null)
{
_compositionAdorner = new CompositionAdorner(this.TextStore.TextView);
_compositionAdorner.Initialize(this.TextStore.TextView);
}
#if UNUSED_IME_HIGHLIGHT_LAYER
// Need to pass the foreground and background color of the composition
_highlightLayer.Add(start, end, /*TextDecorationCollection:*/ null);
#endif
// Add the attribute range into CompositionAdorner.
_compositionAdorner.AddAttributeRange(start, end, displayAttribute);
}
}
Marshal.ReleaseComObject(attributeRanges[0]);
}
#if UNUSED_IME_HIGHLIGHT_LAYER
if (_highlightLayer != null)
{
this.TextStore.TextContainer.Highlights.AddLayer(_highlightLayer);
}
#endif
if (_compositionAdorner != null)
{
// Update the layout to get the acurated rectangle from calling GetRectangleFromTextPosition
this.TextStore.RenderScope.UpdateLayout();
// Invalidate the composition adorner to render the composition attribute ranges.
_compositionAdorner.InvalidateAdorner();
}
Marshal.ReleaseComObject(attributeRangeEnumerator);
}
Marshal.ReleaseComObject(displayAttributeProperty);
}