本文整理汇总了C#中System.Windows.Documents.TextPointer.InsertTextElement方法的典型用法代码示例。如果您正苦于以下问题：C# TextPointer.InsertTextElement方法的具体用法？C# TextPointer.InsertTextElement怎么用？C# TextPointer.InsertTextElement使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Windows.Documents.TextPointer的用法示例。
在下文中一共展示了TextPointer.InsertTextElement方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: InsertInkAtPosition
// Inserts an InkInteropObject at a specified position.
private TextPointer InsertInkAtPosition(TextPointer insertionPosition, InkInteropObject inkobject, out UnsafeNativeMethods.TS_TEXTCHANGE change)
{
int symbolsAddedBefore = 0;
int symbolsAddedAfter = 0;
// Prepare an insertion position for InlineUIContainer.
// As an optimization, shift outside of any formatting tags to avoid
// splitting tags below.
while (insertionPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.ElementStart &&
TextSchema.IsFormattingType(insertionPosition.Parent.GetType()))
{
insertionPosition = insertionPosition.GetNextContextPosition(LogicalDirection.Backward);
}
while (insertionPosition.GetPointerContext(LogicalDirection.Forward) == TextPointerContext.ElementEnd &&
TextSchema.IsFormattingType(insertionPosition.Parent.GetType()))
{
insertionPosition = insertionPosition.GetNextContextPosition(LogicalDirection.Forward);
}
// If we need to, split the current parent TextElement and prepare
// a suitable home for an InlineUIContainer.
if (!TextSchema.IsValidParent(insertionPosition.Parent.GetType(), typeof(InlineUIContainer)))
{
insertionPosition = TextRangeEditTables.EnsureInsertionPosition(insertionPosition, out symbolsAddedBefore, out symbolsAddedAfter);
Invariant.Assert(insertionPosition.Parent is Run, "position must be in Run scope");
insertionPosition = TextRangeEdit.SplitElement(insertionPosition);
// We need to remember how many symbols were added into addition
// to the InlineUIContainer itself.
// Account for the two element edges just added.
symbolsAddedBefore += 1;
symbolsAddedAfter += 1;
}
// Create an InlineUIContainer.
InlineUIContainer inlineUIContainer = new InlineUIContainer(inkobject);
change.start = ((ITextPointer)insertionPosition).Offset - symbolsAddedBefore;
change.oldEnd = change.start;
// Insert it into the insertionPosition. This adds 3 symbols.
insertionPosition.InsertTextElement(inlineUIContainer);
change.newEnd = change.start + symbolsAddedBefore + inlineUIContainer.SymbolCount + symbolsAddedAfter;
// Return a position after the inserted object.
return inlineUIContainer.ElementEnd.GetInsertionPosition(LogicalDirection.Forward);
}示例2: InsertLineBreak
/// <summary>
/// Insert a LineBreak element at the given position.
/// If position's parent is a Paragraph or Span, simply insert a LineBreak element at this position.
/// Otherwise, ensure insertion position and insert a LineBreak element at insertion position in text content.
/// </summary>
/// <param name="position">
/// </param>
/// <returns>
/// TextPointer positioned in the beginning of a Run immediately following a LineBreak inserted.
/// </returns>
internal static TextPointer InsertLineBreak(TextPointer position)
{
if (!TextSchema.IsValidChild(/*position*/position, /*childType*/typeof(LineBreak)))
{
// Ensure insertion position, in case position's parent is not a paragraph/span element.
position = TextRangeEditTables.EnsureInsertionPosition(position);
}
if (TextSchema.IsInTextContent(position))
{
// Split parent Run element, if position is inside of Run scope.
position = SplitElement(position);
}
Invariant.Assert(TextSchema.IsValidChild(/*position*/position, /*childType*/typeof(LineBreak)),
"position must be in valid scope now to insert a LineBreak element");
LineBreak lineBreak = new LineBreak();
position.InsertTextElement(lineBreak);
return lineBreak.ElementEnd.GetInsertionPosition(LogicalDirection.Forward);
}