How to Measure Text in WordsProcessing .NET Standard
Environment
| Version | Product | Author |
|---|---|---|
| 2024.1.305 | RadWordsProcessing | Yoan Karamanov |
Description
This article shows how to measure text in WordsProcessing in the .NET Standard environment.
Solution
You can measure a text by passing the text- and font properties of the Run you want to insert to the MeasureText method of a Telerik.Windows.Documents.Spreadsheet.Extensibility.SpreadFixedTextMeasurer instance. Due to Font Limitations of the PdfProcessing library in .NET Standard you would have to provide a FontsProvider implementation as well:
using System.Diagnostics;
using Telerik.Documents.Common.Model;
using Telerik.Documents.Core.Fonts;
using Telerik.Windows.Documents.Core.Fonts;
using Telerik.Windows.Documents.Core.TextMeasurer;
using Telerik.Windows.Documents.Extensibility;
using Telerik.Windows.Documents.Flow.FormatProviders.Docx;
using Telerik.Windows.Documents.Flow.Model;
using Telerik.Windows.Documents.Flow.Model.Editing;
using Telerik.Windows.Documents.Spreadsheet.Extensibility;
FontsProviderBase fontsProvider = new FontsProvider();
FixedExtensibilityManager.FontsProvider = fontsProvider;
SpreadTextMeasurerBase textMeasurer = new SpreadFixedTextMeasurer();
RadFlowDocument flowDocument = new RadFlowDocument();
RadFlowDocumentEditor editor = new RadFlowDocumentEditor(flowDocument);
Section section = editor.InsertSection();
#region Verdana, font size 16
//Verdana, font size 16
FontFamily fontFamily = new FontFamily("Verdana");
string text = "This is a sample text - Verdana";
int fontSize = 16;
//FontStyles.Normal, FontWeights.Normal
Paragraph paragraph = section.Blocks.AddParagraph();
TextProperties textProperties = new TextProperties(text, fontSize);
FontProperties fontProperties = new FontProperties(fontFamily, FontStyles.Normal, FontWeights.Normal);
TextMeasurementInfo measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
Run run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Normal;
run.FontWeight = FontWeights.Normal;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
//FontStyles.Italic, FontWeights.Normal
paragraph = section.Blocks.AddParagraph();
fontProperties = new FontProperties(fontFamily, FontStyles.Italic, FontWeights.Normal);
measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Italic;
run.FontWeight = FontWeights.Normal;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
//FontStyles.Normal, FontWeights.Bold
paragraph = section.Blocks.AddParagraph();
fontProperties = new FontProperties(fontFamily, FontStyles.Normal, FontWeights.Bold);
measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Normal;
run.FontWeight = FontWeights.Bold;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
//FontStyles.Italic, FontWeights.Bold
paragraph = section.Blocks.AddParagraph();
fontProperties = new FontProperties(fontFamily, FontStyles.Italic, FontWeights.Bold);
measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Italic;
run.FontWeight = FontWeights.Bold;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
#endregion
#region Arial, font size 12
//Arial, font size 12
fontFamily = new FontFamily("Arial");
fontSize = 12;
text = "This is a sample text - Arial";
//FontStyles.Normal, FontWeights.Normal
paragraph = section.Blocks.AddParagraph();
textProperties = new TextProperties(text, fontSize);
fontProperties = new FontProperties(fontFamily, FontStyles.Normal, FontWeights.Normal);
measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Normal;
run.FontWeight = FontWeights.Normal;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
//FontStyles.Italic, FontWeights.Normal
paragraph = section.Blocks.AddParagraph();
fontProperties = new FontProperties(fontFamily, FontStyles.Italic, FontWeights.Normal);
measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Italic;
run.FontWeight = FontWeights.Normal;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
//FontStyles.Normal, FontWeights.Bold
paragraph = section.Blocks.AddParagraph();
fontProperties = new FontProperties(fontFamily, FontStyles.Normal, FontWeights.Bold);
measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Normal;
run.FontWeight = FontWeights.Bold;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
//FontStyles.Italic, FontWeights.Bold
paragraph = section.Blocks.AddParagraph();
fontProperties = new FontProperties(fontFamily, FontStyles.Italic, FontWeights.Bold);
measurementInfo = textMeasurer.MeasureText(textProperties, fontProperties);
run = paragraph.Inlines.AddRun(text);
run.Properties.FontFamily.LocalValue = new ThemableFontFamily(fontFamily);
run.FontStyle = FontStyles.Italic;
run.FontWeight = FontWeights.Bold;
run.FontSize = fontSize;
paragraph.Inlines.AddRun($" - Width: {Math.Round(measurementInfo.Size.Width, 2)}, Height: {Math.Round(measurementInfo.Size.Height, 2)}");
#endregion
// Save as docx and open
DocxFormatProvider docxFormatProvider = new DocxFormatProvider();
string outputPath = "output.docx";
File.WriteAllBytes(outputPath, docxFormatProvider.Export(flowDocument));
var psi = new ProcessStartInfo()
{
FileName = outputPath,
UseShellExecute = true
};
Process.Start(psi);
public class FontsProvider : FontsProviderBase
{
public override byte[] GetFontData(FontProperties fontProperties)
{
string fontFileName = fontProperties.FontFamilyName + ".ttf";
string fontFolder = Environment.GetFolderPath(Environment.SpecialFolder.Fonts);
//The fonts can differ depending on the file
if (fontProperties.FontFamilyName == "Verdana")
{
if (fontProperties.FontStyle == FontStyles.Italic && fontProperties.FontWeight == FontWeights.Bold)
{
fontFileName = $"verdanaz.ttf";
}
else if (fontProperties.FontStyle == FontStyles.Italic)
{
fontFileName = $"verdanai.ttf";
}
else if (fontProperties.FontWeight == FontWeights.Normal)
{
fontFileName = "verdana.ttf";
}
else if (fontProperties.FontWeight == FontWeights.Bold)
{
fontFileName = $"verdanab.ttf";
}
}
else if (fontProperties.FontFamilyName == "Arial")
{
if (fontProperties.FontStyle == FontStyles.Italic && fontProperties.FontWeight == FontWeights.Bold)
{
fontFileName = $"arialbi.ttf";
}
else if (fontProperties.FontStyle == FontStyles.Italic)
{
fontFileName = $"ariali.ttf";
}
else if (fontProperties.FontWeight == FontWeights.Normal)
{
fontFileName = "arial.ttf";
}
else if (fontProperties.FontWeight == FontWeights.Bold)
{
fontFileName = $"arialbd.ttf";
}
}
//...add more fonts if needed...
DirectoryInfo directory = new DirectoryInfo(fontFolder);
FileInfo[] fontFiles = directory.GetFiles();
var fontFile = fontFiles.FirstOrDefault(f => f.Name.Equals(fontFileName, StringComparison.InvariantCultureIgnoreCase));
if (fontFile != null)
{
string targetPath = fontFile.FullName;
using (FileStream fileStream = File.OpenRead(targetPath))
{
using (MemoryStream memoryStream = new MemoryStream())
{
fileStream.CopyTo(memoryStream);
return memoryStream.ToArray();
}
}
}
return null;
}
}
Result:
