private void menuStrikethrough_Click(object sender, SourcedEventArgs e)
{
var isMenuStrikeChecked = rtb.Selection.Runs.Any() &&
rtb.Selection.Runs.All(r => r.TextDecorations != null && r.TextDecorations.Contains(C1TextDecorations.Strikethrough[0]));
var value = isMenuStrikeChecked ? null : C1TextDecorations.Strikethrough;
using (new DocumentHistoryGroup(rtb.DocumentHistory))
{
var range = rtb.Selection;
range.TrimRuns();
rtb.Selection = range;
foreach (var r in range.EditRanges)
{
foreach (var run in range.Runs)
{
var collection = new C1TextDecorationCollection();
if (value == null)
{
foreach (var decoration in run.TextDecorations)
{
collection.Add(decoration);
}
collection.Remove(C1TextDecorations.Strikethrough[0]);
if (collection.Count == 0)
{
collection = null;
}
}
else if (run.TextDecorations == null)
{
collection.Add(value[0]);
}
else if (!run.TextDecorations.Contains(value[0]))
{
foreach (var decoration in run.TextDecorations)
{
collection.Add(decoration);
}
collection.Add(value[0]);
}
else
{
continue;
}
run.TextDecorations = null;
run.TextDecorations = collection;
}
}
rtb.Focus();
}
}
private void menuUnderline_Click(object sender, SourcedEventArgs e)
{
var isMenuUnderlineChecked = rtb.Selection.Runs.Any() &&
rtb.Selection.Runs.All(r => r.TextDecorations != null && r.TextDecorations.Contains(C1TextDecorations.Underline[0]));
var value = isMenuUnderlineChecked ? null : C1TextDecorations.Underline;
using (new DocumentHistoryGroup(rtb.DocumentHistory))
{
var range = rtb.Selection;
range.TrimRuns();
rtb.Selection = range;
foreach (var r in range.EditRanges)
{
foreach (var run in range.Runs)
{
var collection = new C1TextDecorationCollection();
if (value == null)
{
foreach (var decoration in run.TextDecorations)
collection.Add(decoration);
collection.Remove(C1TextDecorations.Underline[0]);
if (collection.Count == 0)
collection = null;
}
else if (run.TextDecorations == null)
{
collection.Add(value[0]);
}
else if (!run.TextDecorations.Contains(value[0]))
{
foreach (var decoration in run.TextDecorations)
collection.Add(decoration);
collection.Add(value[0]);
}
else
{
continue;
}
run.TextDecorations = null;
run.TextDecorations = collection;
}
}
rtb.Focus();
}
}
