poboiko created this revision. poboiko added reviewers: Frameworks, mlaurent, ahmadsamir, dfaure. Herald added a project: Frameworks. poboiko requested review of this revision.
REVISION SUMMARY This patch adds support of different headings (essentially, HTML h1..h6 tags). Those might be pretty useful when formatting a rich text (I'm having KJots - note taking app - in mind) `QTextBlockFormat` supports `headingLevel` since Qt 5.12; however, as stated in the documentation, `setHeadingLevel` does not adjust style (font size, etc), so we have to take care of it on our own. It also adds a `KSelectAction` to choose between different headings. There are few behavior nuances: 1. If user presses `Enter` at the end of heading line, cursor should switch to `basic text` 2. If user presses `Enter` in the middle of the heading, line just breaks into two headings 3. If user presses `Backspace` at the beginning of a line after the heading, the line is merged with the previous one (and thus becomes heading itself) 4. The same with `Delete` at the end of heading line: the next line should become heading too. TEST PLAN See the video of `KRichTextEditor` from `KXmlGui` (I had to add `format_heading_level` to rc-file). REPOSITORY R310 KTextWidgets BRANCH textwidget-heading (branched from master) REVISION DETAIL https://phabricator.kde.org/D28854 AFFECTED FILES src/widgets/krichtextedit.cpp src/widgets/krichtextedit.h src/widgets/krichtextwidget.cpp src/widgets/krichtextwidget.h To: poboiko, #frameworks, mlaurent, ahmadsamir, dfaure Cc: kde-frameworks-devel, LeGast00n, cblack, michaelh, ngraham, bruns
