Plain text editing generates extra breaks

[David Mathog]

1. multi-line text modified using the Text and Font dialog some operations result in extra "\n" symbols in the plain text representation, breaking lines that should not break.

2. The plain text representation contains two "\n" symbols per expected line break.

To see the first problem.

1. start inkscape
2. enter some multine line text ("one\ntwo\nthree")
3. shift-control T to open the Text and Font dialog
4. Using the text select tool select the "w" in two and change it to italics

Result, the text preview picks up an extra EOL character. In the Text and Font dialog each time that happened the dialog became taller.

To see the second problem just examine the text in the preview window, the spacing is, for the preceding example:
"one\n\ntwo\n\nthree". This had the effect of making the Text and Font dialog much taller than it needed to be.

The attached patch resolves both issues.

[David Mathog (mathog)]

The patch changes_2014_03_11b_texteditonly.patch is also included in the patch changes_2014_03_11b_textdecorateonly.patch for bug #1269206

[su_v (suv-lp)]

Reproduced with Inkscape 0.48.4 r9939, r10015, 0.48+devel r10785 and r13135 (latest) on OS X 10.7.5.

[David Mathog (mathog)]

Note, tested on both Linux and Windows XP.

[Nathan Lee (nathan.lee)]

Closing as part of bug migration (http://alpha.inkscape.org/bug-migration/)

Issue still being tracked in https://gitlab.com/inkscape/inkscape/-/issues/1161