Hi Stoyan,

We are using CustomShaped ShapeNode in our application. In this shape we have one TextRegion defined which is outer left side of the node that contains the text of the node. Defination of shape is:
textAtTheLeft = new MindFusion.Diagramming.Wpf.Shape(
               Shapes.Rectangle.Outline,// reuse the rectangular shape
               null,// no decorations
               //Rohit: Perf changed
               new ElementTemplate[]// define text region
                   {
                       new LineTemplate(-300, 19, -50, 19),
                       new LineTemplate(-50, 19, -50, 79),
                       new LineTemplate(-50, 79, -300, 79),
                       new LineTemplate(-300, 79, -300, 19)
                   },
                   FillRule.EvenOdd,// doesn't matter here
                   "textAtTheLeft"// to access the shape later using Shape.FromId
               );

Since we are assigning text at runtime so if text length is higher than the TextArea length then we want
Either TextArea gets increase so that it can contain the whole text
Or TextArea remain the same but text get wrapped and come in two or more lines.

We have tried to increase the TextArea at runtime but it has not solved our problem. We have tried with following snippet:
Size size = diagram.MeasureString((node.Text, node, 600);
double textAreaW = size.Width * 4; // the width of the text area

node.TextTrimming = TextTrimming.None;
textAreaW = (-1 * textAreaW) - 240;
node.Shape.TextArea = new ElementTemplate[] {
new LineTemplate(textAreaW, 19, -50, 19),                     new LineTemplate(-50, 19, -50, 79),
new LineTemplate(-50, 79, textAreaW, 79),
                     new LineTemplate(textAreaW, 79, textAreaW, 19)};
node.TextAlignment = TextAlignment.Right;
              
Please suggest to resolve this issue.

Regards,
Bala

The size of the text area is relative to the size of its containing node. Therefore assigning the value returned by the MeasureString as the width of the area will be interpreted incorrectly - as a percentage of the node's width. Instead you have to perform manual calculations of the text width expressed as a percentage of the node's width:

Size size = diag.MeasureString(text, node, 600);
double padding = 5;
double areaWidth = size.Width * 100 / node.Bounds.Width + 50 + 2 * padding;

node.Shape.TextArea = new ElementTemplate[]
{
      new LineTemplate(-areaWidth, 19, -50, 19),
      new LineTemplate(-50, 19, -50, 79),
      new LineTemplate(-50, 79, -areaWidth, 79),
      new LineTemplate(-areaWidth, 79, -areaWidth, 19)
}; 

I have also added text padding as well as the hard-coded distance between the text area and the node - 50.

On a side note, resizing the node will cause the text area to get resized as well, so you may have to perform additional calculations when nodes get resized.

Let me know if this helps.

Regards,
Meppy

Hi Stoyan,

Could you please let us know how to wrap the text?

We don't want to create new TextArea at runtime although we want that text area will remain the same and if text is larger than text will wrapped to next line. If Text length is such that it is not occupying in two complete lines than only text should be trimmed.

We have already tried following properties of node.
Node.TextTrimming = TextTrimming.None
Node.TextWrapping = TextWrapping.Wrap;

Please suggest us to resolve this issue.

Regards,
Bala

Hi Stoyan,

Sent sample to your support id to demonstrate the issue.

Steps:
Run the application
Look at the node's text. Text is trimmed instead of wrapped in two lines than trimmed.

Requirement:
When run the application at that time also, text should be maximum visible to user.
1). If text is larger and cannot fit in the text area, than it should wrap to the second line.
2). If text is still not fit in the text area, decrease the font size till 7 and then check.
3). If still not fit than Trim the remaining text.

Please do suggest how we can achieve this?

Regards,
Bala