In the first part of this series, we’ve created a simple WordprocessingML document, and added some basic content to it. It is now time to add some formatting, to make that content presentable. In this part we’ll focus on the two basic methods to modify the formatting of text:
- Runs properties
- Paragraph properties
More advanced methods, such as styles, will be covered later on.
Runs properties
Going back to the sample from part 1, let’s take a look at a text run:
writer.WriteStartElement("r", wordmlNamespace);
writer.WriteStartElement("t", wordmlNamespace);
writer.WriteValue("Hello world");
writer.WriteEndElement(); // t
writer.WriteEndElement(); // r
After the start of the run (r) element, let’s add a run properties element:
writer.WriteStartElement("rPr", wordmlNamespace);
// formatting goes here
writer.WriteEndElement(); // rPr
Now we are free to define the format of the run. Attributes, such as bold, italic, underline are quite easy to define:
writer.WriteElementString("b", wordmlNamespace, "");
writer.WriteElementString("i", wordmlNamespace, "");
writer.WriteElementString("u", wordmlNamespace, "");
More complex attributes, like the font size, color, or superscript/subscript are only slightly more interesting:
writer.WriteStartElement("sz", wordmlNamespace);
writer.WriteAttributeString("val", wordmlNamespace, "8");
writer.WriteEndElement(); // sz
writer.WriteStartElement("color", wordmlNamespace);
writer.WriteAttributeString(val, wordmlNamespace, Colors.Red.ToArgb().ToString(X8).Substring(2));
writer.WriteEndElement(); // color
writer.WriteStartElement("vertAlign", wordmlNamespace);
writer.WriteAttributeString(val, wordmlNamespace, superscript); // subcript
writer.WriteEndElement(); // vertAlign
As you can see, defining the basic settings of the text is simple work.
Paragraph properties
In a very similar way, we can define properties at the paragraph level:
writer.WriteStartElement("pPr", wordmlNamespace);
// formatting goes here
writer.WriteEndElement(); // pPr
Alignment of the paragraph is defined using the jc (can anyone explain the JC name?!) element:
writer.WriteStartElement("jc", wordmlNamespace);
writer.WriteAttributeString("val", wordmlNamespace, "right");
writer.WriteEndElement(); // jc
And indentation is just as easy (Note: All units in the fields are in TWIPS (1/20 of a point). There are 72 points to an inch and 20 TWIPS to a point, and therefore there are 72 * 20 TWIPS to an inch):
writer.WriteStartElement("ind", wordmlNamespace);
writer.WriteAttributeString("firstLine", wordmlNamespace, "720");
writer.WriteAttributeString(hanging, wordmlNamespace, "1440");
writer.WriteEndElement(); // ind
and lines spacing:
writer.WriteStartElement("spacing", wordmlNamespace);
writer.WriteAttributeString("line", wordmlNamespace, "120");
writer.WriteAttributeString("after", wordmlNamespace, "240");
writer.WriteAttributeString("before", wordmlNamespace, "360");
writer.WriteEndElement(); // spacing
That’s it – basic formatting of text is quite simple, yet very powerful. There are a lot more options to control the formatting of textual components.