Creating an editable rotatable textbox

My next question…!

I’ve learned how to place text in a window using Font_Paint or use an editable text icon, but how would I go about creating a rotatable editable textbox?

You can supply a transformation matrix to Font_Paint to rotate the text, and the Swiss army knife Font_ScanString can use the same transformation matrix to help you position your caret (which you’d have to render yourself) given mouse click or index within the string – see https://www.riscosopen.org/wiki/documentation/show/Font_ScanString. For sanity, I’d advise doing everything to do with fonts in millipoints; just convert from OS units for mouse clicks.

Use MakeDraw from !Store

PROCmdTextTran(x,y,t$,r)

Positions a transformed text object at (x,y) using the current text style
and colour. The coordinates define the position of the left-hand end of
the base line of the text – any descenders will extend below this position.

The text should not contain any control characters: if it does an error will
occur when trying to load the draw file into !Draw.

For example:

I’ve used Font_ScanString to identify the bounding box of the text, I’m now wondering whether to use Draw_Stroke or PLOT codes to draw the textbox outline.

I could do a dotted outline with PLOT code 16, or use Draw_Stroke with dashes to achieve the same thing.

PLOT codes are more straightforward, but would Draw_Stroke have some benefits?

Anyone got any guidance for me?