lqtTextEditor

More advanced text editor in PyQt.

Compatibility

• Qt.py Is being used to handle compatibility between different Qt versions.
• code can be ported to python2 if necessary, there is only type hints and super calls to change.

LinePlainTextEdit

Works well for code editing. Features :

• line numbering in sidebar
  • range selection of lines from the sidebar
• indentation and unindentation with custom characters
• line hiding/showing/isolating
• "Jump to Line" dialog on Ctrl+G
• no big performance difference with regular QPlainTextEdit widget.
  • triggering repaint more often
  • performance hit when you have a lot of line hided at the end of the document and you scroll to the bottom
• advanced styling with stylesheets (see below)

Note : Line numbers are visually expressed starting from 1, but starts from 0 in the code.

See test_linePlainTextEdit.py for an example.

Usage

import lqtTextEditor

editor = lqtTextEditor.LinePlainTextEdit()
editor.setPlainText("Hello world !")

Here is some options you can configure

import lqtTextEditor

editor = lqtTextEditor.LinePlainTextEdit()
editor.setPlainText("Hello world !")
editor.set_tab_character("\t")
# lead to visual issue on the default Qt style when enabled
editor.set_alternating_row_colors(True)
# space between text and sidebar
editor.set_left_margin(15)

Styling

With stylesheet :

/*dark pastel theme*/
QWidget.LineSideBarWidget{
  font-family: monospace;
  color: rgb(150,150,150);
  background-color: rgb(55,55,58);
  border-right: 1px solid rgb(60,60,60);
}
/* it's possible to style each line "box" with the ::item selector */
QWidget.LineSideBarWidget::item{
    border-bottom: 1px solid rgb(60,60,60);
}
/* :hover works too */
QWidget.LineSideBarWidget::item:hover{
    background-color: rgb(65,65,70);
}
/* and also :                         */
/* ::item:first (of visible lines)    */
/* ::item:last  (of visible lines)    */
/* ::item:pressed                     */
/* ::item:selected                    */

/* works the same for the QPlainTextEdit */
QWidget.LinePlainTextEdit{
  font-family: monospace;
  color: rgb(200,200,200);
  background-color: rgb(50,50,55);
}
/*where item is the line box*/
QWidget.LinePlainTextEdit::item{
  border-bottom: 1px solid rgb(60, 60, 65);
}
/* and also :                         */
/* ::item:hover                       */
/* ::item:first (of visible lines)    */
/* ::item:last  (of visible lines)    */
/* ::item:pressed                     */
/* ::item:selected                    */
/* ::item:alternate                   */

You can find a full example in theme.dark-test.qss, loaded in test_stylesheet.py