private String GetTagName(IEventData data, EventType type)
{
IList <CanvasTag> tagHierarchy = null;
if (type.Equals(EventType.RENDER_TEXT))
{
TextRenderInfo textRenderInfo = (TextRenderInfo)data;
tagHierarchy = textRenderInfo.GetCanvasTagHierarchy();
}
else
{
if (type.Equals(EventType.RENDER_IMAGE))
{
ImageRenderInfo imageRenderInfo = (ImageRenderInfo)data;
tagHierarchy = imageRenderInfo.GetCanvasTagHierarchy();
}
}
return((tagHierarchy == null || tagHierarchy.Count == 0 || tagHierarchy[0].GetProperties().Get(PdfName.Name
) == null) ? null : tagHierarchy[0].GetProperties().Get(PdfName.Name).ToString());
}
public virtual void EventOccurred(IEventData data, EventType type)
{
if (type.Equals(EventType.RENDER_TEXT))
{
TextRenderInfo renderInfo = (TextRenderInfo)data;
LineSegment segment = renderInfo.GetBaseline();
if (renderInfo.GetRise() != 0)
{
// remove the rise from the baseline - we do this because the text from a super/subscript render operations should probably be considered as part of the baseline of the text the super/sub is relative to
Matrix riseOffsetTransform = new Matrix(0, -renderInfo.GetRise());
segment = segment.TransformBy(riseOffsetTransform);
}
if (useActualText)
{
CanvasTag lastTagWithActualText = lastTextRenderInfo != null?FindLastTagWithActualText(lastTextRenderInfo
.GetCanvasTagHierarchy()) : null;
if (lastTagWithActualText != null && lastTagWithActualText == FindLastTagWithActualText(renderInfo.GetCanvasTagHierarchy
()))
{
// Merge two text pieces, assume they will be in the same line
TextChunk lastTextChunk = locationalResult[locationalResult.Count - 1];
Vector mergedStart = new Vector(Math.Min(lastTextChunk.GetLocation().GetStartLocation().Get(0), segment.GetStartPoint
().Get(0)), Math.Min(lastTextChunk.GetLocation().GetStartLocation().Get(1), segment.GetStartPoint().Get
(1)), Math.Min(lastTextChunk.GetLocation().GetStartLocation().Get(2), segment.GetStartPoint().Get(2)));
Vector mergedEnd = new Vector(Math.Max(lastTextChunk.GetLocation().GetEndLocation().Get(0), segment.GetEndPoint
().Get(0)), Math.Max(lastTextChunk.GetLocation().GetEndLocation().Get(1), segment.GetEndPoint().Get(1)
), Math.Max(lastTextChunk.GetLocation().GetEndLocation().Get(2), segment.GetEndPoint().Get(2)));
TextChunk merged = new TextChunk(lastTextChunk.GetText(), tclStrat.CreateLocation(renderInfo, new LineSegment
(mergedStart, mergedEnd)));
locationalResult[locationalResult.Count - 1] = merged;
}
else
{
String actualText = renderInfo.GetActualText();
TextChunk tc = new TextChunk(actualText != null ? actualText : renderInfo.GetText(), tclStrat.CreateLocation
(renderInfo, segment));
locationalResult.Add(tc);
}
}
else
{
TextChunk tc = new TextChunk(renderInfo.GetText(), tclStrat.CreateLocation(renderInfo, segment));
locationalResult.Add(tc);
}
lastTextRenderInfo = renderInfo;
}
}
public virtual void EventOccurred(IEventData data, EventType type)
{
if (type.Equals(EventType.RENDER_TEXT))
{
TextRenderInfo textRenderInfo = (TextRenderInfo)data;
LineSegment lineSegment = textRenderInfo.GetBaseline();
if (textRenderInfo.GetRise() != 0f)
{
Matrix m = new Matrix(0f, -textRenderInfo.GetRise());
lineSegment = lineSegment.TransformBy(m);
}
if (this.useActualText)
{
CanvasTag canvasTag = (this.lastTextRenderInfo != null) ? this.FindLastTagWithActualText(this.lastTextRenderInfo.GetCanvasTagHierarchy()) : null;
if (canvasTag != null && canvasTag == this.FindLastTagWithActualText(textRenderInfo.GetCanvasTagHierarchy()))
{
LocationTextExtractionStrategy2.TextChunk textChunk = this.locationalResult[this.locationalResult.Count - 1];
Vector startPoint = new Vector(Math.Min(textChunk.GetLocation().GetStartLocation().Get(0), lineSegment.GetStartPoint().Get(0)), Math.Min(textChunk.GetLocation().GetStartLocation().Get(1), lineSegment.GetStartPoint().Get(1)), Math.Min(textChunk.GetLocation().GetStartLocation().Get(2), lineSegment.GetStartPoint().Get(2)));
Vector endPoint = new Vector(Math.Max(textChunk.GetLocation().GetEndLocation().Get(0), lineSegment.GetEndPoint().Get(0)), Math.Max(textChunk.GetLocation().GetEndLocation().Get(1), lineSegment.GetEndPoint().Get(1)), Math.Max(textChunk.GetLocation().GetEndLocation().Get(2), lineSegment.GetEndPoint().Get(2)));
LocationTextExtractionStrategy2.TextChunk value = new LocationTextExtractionStrategy2.TextChunk(textChunk.GetText(), this.tclStrat.CreateLocation(textRenderInfo, new LineSegment(startPoint, endPoint)));
this.locationalResult[this.locationalResult.Count - 1] = value;
}
else
{
string actualText = textRenderInfo.GetActualText();
LocationTextExtractionStrategy2.TextChunk item = new LocationTextExtractionStrategy2.TextChunk((actualText != null) ? actualText : textRenderInfo.GetText(), this.tclStrat.CreateLocation(textRenderInfo, lineSegment));
this.locationalResult.Add(item);
}
}
else
{
LocationTextExtractionStrategy2.TextChunk item2 = new LocationTextExtractionStrategy2.TextChunk(textRenderInfo.GetText(), this.tclStrat.CreateLocation(textRenderInfo, lineSegment));
this.locationalResult.Add(item2);
}
this.lastTextRenderInfo = textRenderInfo;
}
}