private void barButtonItem1_ItemClick(object sender, DevExpress.Xpf.Bars.ItemClickEventArgs e)
{
Document doc = richEditControl1.Document;
// Create a custom mark at the caret position and attach arbitrary data to the mark.
// In this example the data specifies the color that will be used to draw the mark.
CustomMark m = doc.CustomMarks.Create(doc.Selection.Start, new SolidColorBrush(Colors.Orange));
}
private void richEditControl1_CustomMarkDraw(object sender, DevExpress.XtraRichEdit.RichEditCustomMarkDrawEventArgs e)
{
foreach (CustomMarkVisualInfo info in e.VisualInfoCollection)
{
Document doc = richEditControl1.Document;
CustomMark mark = doc.CustomMarks.GetByVisualInfo(info);
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
Color curColor = (Color)info.UserData;
if (mark.Position < doc.Selection.Start)
{
curColor = Color.Green;
}
using (Pen p = new Pen(curColor, 3))
{
p.StartCap = LineCap.Flat;
p.EndCap = LineCap.ArrowAnchor;
e.Graphics.DrawLine(p, new Point(0, info.Bounds.Y), info.Bounds.Location);
}
}
}
private void richEditControl1_CustomMarkDraw(object sender, CustomMarkDrawEventArgs e)
{
Canvas surface = LayoutHelper.FindElementByName(richEditControl1, "Surface") as Canvas;
if (surface == null)
{
return;
}
GeneralTransform transform = surface.TransformToVisual(richEditControl1);
RectangleGeometry clip = new RectangleGeometry()
{
Rect = new Rect(transform.Transform(new Point(0, 0)), surface.RenderSize)
};
richEditCanvas.Children.Clear();
richEditCanvas.Clip = clip;
foreach (CustomMarkVisualInfo info in e.VisualInfoCollection)
{
Document doc = richEditControl1.Document;
CustomMark mark = doc.CustomMarks.GetByVisualInfo(info);
// Get a brush associated with the mark.
Brush curBrush = info.UserData as Brush;
// Use a different brush to draw custom marks located above the caret.
if (mark.Position < doc.Selection.Start)
{
curBrush = new SolidColorBrush(Colors.Green);
}
Rectangle rect = new Rectangle();
rect.Width = 2;
rect.Height = info.Bounds.Height;
rect.Fill = curBrush;
Canvas.SetLeft(rect, info.Bounds.X);
Canvas.SetTop(rect, info.Bounds.Y);
richEditCanvas.Children.Add(rect);
}
}
private void richEditControl1_CustomMarkDraw(object sender, DevExpress.Xpf.RichEdit.CustomMarkDrawEventArgs e)
{
if (!richEditControl1.IsLoaded)
{
return;
}
Canvas surface = richEditControl1.Template.FindName("Surface", richEditControl1) as Canvas;
if (!surface.IsLoaded)
{
return;
}
GeneralTransform transform = surface.TransformToVisual(richEditControl1);
RectangleGeometry clip = new RectangleGeometry(new Rect(transform.Transform(new Point(0, 0)), surface.RenderSize));
richEditCanvas.Children.Clear();
richEditCanvas.Clip = clip;
foreach (CustomMarkVisualInfo info in e.VisualInfoCollection)
{
Document doc = richEditControl1.Document;
CustomMark mark = doc.CustomMarks.GetByVisualInfo(info);
// Get a brush associated with the mark.
Brush curBrush = info.UserData as Brush;
// Use a different brush to draw custom marks located above the caret.
if (mark.Position < doc.Selection.Start)
{
curBrush = Brushes.Green;
}
Rectangle rect = new Rectangle();
rect.Width = 2;
rect.Height = info.Bounds.Height;
rect.Fill = curBrush;
Canvas.SetLeft(rect, info.Bounds.X);
Canvas.SetTop(rect, info.Bounds.Y);
richEditCanvas.Children.Add(rect);
}
}
private void btn_Mark_Click(object sender, EventArgs e)
{
Document doc = richEditControl1.Document;
CustomMark m = doc.CustomMarks.Create(doc.Selection.Start, Color.DarkOrange);
}
