This dialog window is opened when you click on the image with the
Text Tool. It's a still basic text editor that nevertheless
allows you to write on several lines. Word wrap is not possible
- the text layer lengthens gradually - and you have to press the
Enter key to move to the next line.
The text you type appears interactively in the image. If the
option “Show Layer Boundary” is checked in the View
menu, this text will be surrounded with black and yellow dashes
that mark the layer boundary. Now look, it's not a selection:
if you want to move the text, you must click on the text itself
and not inside this frame only.
You can correct the text you are writing and you can change the
text font with the Font Editor.
You can move the text by using the Move Tool, but you loose the
Editor then. You can re-edit this text as you will see now.
As soon as you start writing, a Text layer is created in the Layer
Dialog. On an image with such a layer (the image you are working
on, or a .xcf image), you can resume text editing by activating
this text layer then clicking on it (double click).
To add another text to your image click on a non-text layer: a new
Text Editor will appear and a new text layer will be created. To
pass from a text to another one activate the corresponding text
layer and click on it to activate the editor.