/// <summary>
/// Puts a highlight rectangle over the box which is expressed in PDF coordinate space
/// </summary>
/// <param name="p">A PDF Text page</param>
/// <param name="v">The viewer to put the annotation on</param>
/// <param name="layer">The layer to put the annotation on</param>
/// <param name="pdfBox">The box to highlight in PDF coordinate space</param>
/// <param name="hiColor">The color to highlight with</param>
/// <param name="padding">Extra padding around the box in pixels</param>
private void HighlightPdfBox(PdfTextPage p, AnnotateViewer v, LayerAnnotation layer, RectangleF pdfBox, Color hiColor, int padding)
{
RectangleF imageBox = p.ConvertPdfUnitsToPixels(new QuadrilateralF(pdfBox), v.Image.Resolution).Bounds;
imageBox.X = imageBox.X - padding;
imageBox.Y = imageBox.Y - padding;
imageBox.Width = imageBox.Width + 2 * padding;
imageBox.Height = imageBox.Height + 2 * padding;
HighlightImageBox(v, layer, imageBox, hiColor);
}
/// <summary>
/// Put an annotation on the layer that highlights the rectangle in the color passed in
/// </summary>
/// <param name="layer">The layer on which to put the annotation</param>
/// <param name="imageBox">The bounds of the annotation</param>
/// <param name="hiColor">The color of the annotation</param>
private void CreateHighlightAnnotation(LayerAnnotation layer, RectangleF imageBox, Color hiColor)
{
RectangleAnnotation ra = new RectangleAnnotation(imageBox, new AnnotationBrush(hiColor), null)
{
Translucent = true
};
ra.Data.CanMove = false;
ra.Data.CanResize = false;
ra.Data.CanSelect = false;
ra.Data.CanRotate = false;
layer.Items.Add(ra);
}
private LayerData[] LoadAnnotationData(object data)
{
LayerData[] layers = null;
LayerCollection lc = data as LayerCollection;
if (lc != null && lc.Count != 0)
{
layers = new LayerData[lc.Count];
for (int i = 0; i < layers.Length; i++)
{
layers[i] = (LayerData)lc[i].Data;
}
}
LayerData[] lda = data as LayerData[];
if (lda != null)
{
layers = lda;
}
LayerAnnotation la = data as LayerAnnotation;
if (la != null)
{
layers = new LayerData[1];
layers[0] = (LayerData)la.Data;
}
LayerData ld = data as LayerData;
if (ld != null)
{
layers = new LayerData[1];
layers[0] = ld;
}
AnnotationUI ann = data as AnnotationUI;
if (ann != null)
{
layers = new LayerData[1];
layers[0].Items.Add(ann.Data);
}
AnnotationData ad = data as AnnotationData;
if (ad != null)
{
layers = new LayerData[1];
layers[0].Items.Add(ad);
}
return layers;
}
private void SetContextMenu(Atalasoft.Annotate.UI.LayerAnnotation layer)
{
foreach (Atalasoft.Annotate.UI.AnnotationUI ann in layer.Items)
{
LayerAnnotation l = ann as LayerAnnotation;
if (l != null)
{
SetContextMenu(l);
}
else
{
ann.ContextMenuStrip = this.contextMenuStrip1;
}
}
}
/// <summary>
/// Puts an annotation over the characters in a PDF page
/// </summary>
/// <param name="v">Annotate viewer</param>
/// <param name="p">A PDF Text page</param>
/// <param name="hiColor">The highlight color</param>
/// <param name="index">The index of the first character within the page</param>
/// <param name="len">The number of characters to highlight</param>
private void HighlightChars(AnnotateViewer v, PdfTextPage p, Color hiColor, int index, int len)
{
// take off all existing hilights
LayerAnnotation layer = v.Annotations.CurrentLayer;
layer.Items.Clear();
// a single phrase can span a line and need more than one box to
// highlight it
QuadrilateralF[] pdfBoxes = p.GetBoxes(index, len);
foreach (QuadrilateralF b in pdfBoxes)
{
HighlightPdfBox(p, v, layer, b.Bounds, hiColor, 2);
}
}
public LayerCollection ToAnnotationUI(LayerData[] layers, Size[] pageSizes)
{
LayerCollection retLayers = new LayerCollection();
if (layers != null)
{
ConvertFromWDV(layers, pageSizes);
foreach (LayerData layer in layers)
{
AnnotationUI outAnnot = _factories.GetAnnotationFromData(layer);
LayerAnnotation layerAnnot = outAnnot as LayerAnnotation;
retLayers.Add(layerAnnot);
}
}
return retLayers;
}
/// <summary>
/// Puts a highlight rectangle over the box which is expressed in the image's coordinate space
/// </summary>
/// <param name="layer">The layer to put the annotation on</param>
/// <param name="imageBox">The box to highlight in Image coordinate space</param>
/// <param name="hiColor">The color to highlight with</param>
private void HighlightImageBox(AnnotateViewer v, LayerAnnotation layer, RectangleF imageBox, Color hiColor)
{
CreateHighlightAnnotation(layer, imageBox, hiColor);
EnsureAreaIsVisible(v, imageBox);
}