public static string GetInformationAboutRichEditDocumentLayout(Document currentDocument, DocumentLayout currentDocumentLayout)
{
SubDocument subDocument = currentDocument.CaretPosition.BeginUpdateDocument();
DocumentPosition docPosition = subDocument.CreatePosition(currentDocument.CaretPosition.ToInt() == 0 ? 0 : currentDocument.CaretPosition.ToInt() - 1);
ReadOnlyShapeCollection shapes = subDocument.Shapes.Get(subDocument.CreateRange(docPosition, 1));
ReadOnlyDocumentImageCollection images = subDocument.Images.Get(subDocument.CreateRange(docPosition, 1));
if (shapes.Count == 0 && images.Count == 0)
{
docPosition = subDocument.CreatePosition(currentDocument.CaretPosition.ToInt());
}
string returnedInformation = "";
// get infromation about a current document element
returnedInformation += GetInformationAboutCurrentDocumentElement(currentDocument, currentDocumentLayout, subDocument, docPosition);
// collect information about CURRENT PAGE
RangedLayoutElement layoutPosition = currentDocumentLayout.GetElement <RangedLayoutElement>(docPosition);
if (layoutPosition != null)
{
int currentPageIndex = currentDocumentLayout.GetPageIndex(layoutPosition);
returnedInformation += PageLayoutHelper.GetInformationAboutCurrentPage(currentDocumentLayout, currentDocumentLayout.GetPage(currentPageIndex), docPosition);
}
currentDocument.CaretPosition.EndUpdateDocument(subDocument);
return(returnedInformation);
}
void OnTreeViewItemSelected(object sender, RoutedEventArgs e)
{
RichEditTreeViewItem item = (RichEditTreeViewItem)sender;
if (!item.IsSelected)
{
return;
}
CurrentTreeItem = item;
richEdit.Document.ChangeActiveDocument(richEdit.Document);
LayoutElement element = CurrentTreeItem.Info.Element;
if (CurrentTreeItem.Info.DisplayAction == ContentDisplayAction.ScrollTo)
{
TryScrollToHeader(element);
TryScrollToFooter(element);
TryScrollToFloatingObject(element);
TryScrollToComment(element);
}
else
{
RangedLayoutElement rangedElement = element as RangedLayoutElement;
if (rangedElement == null)
{
return;
}
ScrollToPosition(rangedElement.Range.Start);
richEdit.Document.Selection = richEdit.Document.CreateRange(rangedElement.Range.Start, rangedElement.Range.Length);
}
}
void richEdit_SelectionChanged(object sender, EventArgs e)
{
RangedLayoutElement element = richEdit.DocumentLayout.GetElement <RangedLayoutElement>(richEdit.Document.CaretPosition);
if (element != null)
{
ActivePageNumber = richEdit.DocumentLayout.GetPageIndex(element) + 1;
}
}
private void UpdateInfoAndSelection()
{
LayoutElement element = layoutIterator.Current;
infoElement.Caption = String.Empty;
if (element != null)
{
RangedLayoutElement rangedElement = element as RangedLayoutElement;
infoElement.Caption = element.Type.ToString();
if (rangedElement != null)
{
DocumentRange r = doc.CreateRange(rangedElement.Range.Start, rangedElement.Range.Length);
richEditControl1.Document.ChangeActiveDocument(doc);
richEditControl1.Document.Selection = r;
}
}
}
private void btnSetRange_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if (coloredRange != null)
{
ResetRange(coloredRange);
}
coloredRange = richEditControl1.Document.Selection;
if (coloredRange.Length == 0)
{
return;
}
// Highlight selected range.
SubDocument d = coloredRange.BeginUpdateDocument();
CharacterProperties cp = d.BeginUpdateCharacters(coloredRange);
cp.BackColor = System.Drawing.Color.Yellow;
d.EndUpdateCharacters(cp);
coloredRange.EndUpdateDocument(d);
// Create a new iterator limited to the specified range.
layoutIterator = new LayoutIterator(richEditControl1.DocumentLayout, coloredRange);
doc = coloredRange.BeginUpdateDocument();
richEditControl1.Document.ChangeActiveDocument(doc);
coloredRange.EndUpdateDocument(doc);
// Select the first element in the highlighted range.
RangedLayoutElement el = richEditControl1.DocumentLayout.GetElement(coloredRange.Start, LayoutType.PlainTextBox);
while (layoutIterator.MoveNext())
{
RangedLayoutElement element = layoutIterator.Current as RangedLayoutElement;
if ((element != null) && (element.Equals(el)))
{
UpdateInfoAndSelection();
return;
}
}
}
public static string GetInformationAboutCurrentDocumentElement(Document currentDocument, DocumentLayout currentDocumentLayout, SubDocument currentSubDocument, DocumentPosition docPosition)
{
if (currentSubDocument.GetSubDocumentType() == SubDocumentType.TextBox)
{
return(TextBoxLayoutHelper.GetInformationAboutCurrentTextBox(currentSubDocument, currentDocumentLayout, docPosition));
}
if (currentSubDocument.GetSubDocumentType() == SubDocumentType.Main)
{
RangedLayoutElement tableCell = currentDocumentLayout.GetElement(docPosition, LayoutType.TableCell);
if (tableCell != null)
{
// collect information about TABLE CELL
return(DocumentElementLayoutHelper.GetInformationAboutCurrentTableCell(currentDocument, tableCell as LayoutTableCell));
}
RangedLayoutElement imageinline = currentDocumentLayout.GetElement(docPosition, LayoutType.InlinePictureBox);
if (imageinline != null)
{
// collect information about INLINE PICTURE
return(DocumentElementLayoutHelper.GetInformationAboutCurrentInlinePicture(imageinline as InlinePictureBox));
}
RangedLayoutElement floatingObjectAnchor = currentDocumentLayout.GetElement(docPosition, LayoutType.FloatingObjectAnchorBox);
if (floatingObjectAnchor != null)
{
// collect information about FLOATING OBJECT
return(DocumentElementLayoutHelper.GetInformationAboutCurrentFloatingObject(floatingObjectAnchor as FloatingObjectAnchorBox, currentDocumentLayout));
}
RangedLayoutElement regularTextBlock = currentDocumentLayout.GetElement(docPosition, LayoutType.PlainTextBox);
if (regularTextBlock != null)
{
// collect information about REGULAR TEXT BLOCK
return(DocumentElementLayoutHelper.GetInformationAboutRegularTextBlock(regularTextBlock as PlainTextBox, currentDocument));
}
}
return("");
}
private void btnStartHere_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if (coloredRange != null)
{
ResetRange(coloredRange);
}
doc = richEditControl1.Document.CaretPosition.BeginUpdateDocument();
richEditControl1.Document.ChangeActiveDocument(doc);
layoutIterator = new LayoutIterator(richEditControl1.DocumentLayout, doc.Range);
RangedLayoutElement el = richEditControl1.DocumentLayout.GetElement(richEditControl1.Document.CaretPosition, LayoutType.PlainTextBox);
do
{
RangedLayoutElement element = layoutIterator.Current as RangedLayoutElement;
if ((element != null) && (element.Equals(el)))
{
UpdateInfoAndSelection();
return;
}
} while (layoutIterator.MoveNext());
}
void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
if (!(e.Node.IsSelected) || e.Node.Tag == null)
{
return;
}
// Rebuild the tree if required.
rebuild = true;
richEditControl1.Document.ChangeActiveDocument(richEditControl1.Document);
LayoutElement element = layoutTreeDictionary[e.Node];
RangedLayoutElement rangedElement = element as RangedLayoutElement;
// Select a range or scroll to a document position, according to the type of the layout element.
if ((ContentDisplayAction)e.Node.Tag == ContentDisplayAction.ScrollTo)
{
LayoutPage page = element.GetParentByType <LayoutPage>();
LayoutPageArea nearestPageArea = page.PageAreas[0];
if ((element.Type == LayoutType.Header) || (element.GetParentByType <LayoutHeader>() != null))
{
ScrollToPosition(nearestPageArea.Range.Start);
}
if ((element.Type == LayoutType.Footer) || (element.GetParentByType <LayoutFooter>() != null))
{
ScrollToPosition(nearestPageArea.Range.Start + nearestPageArea.Range.Length);
}
LayoutFloatingObject layoutFloatingObject = element as LayoutFloatingObject;
if (layoutFloatingObject != null)
{
FloatingObjectAnchorBox anchor = layoutFloatingObject.AnchorBox;
ScrollToPosition(anchor.Range.Start);
richEditControl1.Document.Selection = richEditControl1.Document.CreateRange(anchor.Range.Start, anchor.Range.Length);
}
LayoutComment layoutComment = element as LayoutComment;
if (layoutComment != null)
{
Comment comment = layoutComment.GetDocumentComment();
ScrollToPosition(comment.Range.Start.ToInt());
}
LayoutTextBox textBox = element.GetParentByType <LayoutTextBox>();
if (textBox != null)
{
// Do not rebuild the tree.
rebuild = false;
ScrollToPosition(textBox.AnchorBox.Range.Start);
SubDocument doc = richEditControl1.DocumentLayout.BeginUpdateDocument(textBox);
richEditControl1.Document.ChangeActiveDocument(doc);
richEditControl1.Document.Selection = doc.CreateRange(rangedElement.Range.Start, rangedElement.Range.Length);
richEditControl1.DocumentLayout.EndUpdateDocument(doc);
}
}
else
{
if (rangedElement == null)
{
return;
}
ScrollToPosition(rangedElement.Range.Start);
richEditControl1.Document.Selection = richEditControl1.Document.CreateRange(rangedElement.Range.Start, rangedElement.Range.Length);
}
}
