lineSpacing not work expected

[taosimple]

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• I have searched the existing issues

Flutter Quill Version

11.4.1

Steps to Reproduce

QuillEditor(
                focusNode: _editorFocusNode,
                scrollController: _editorScrollController,
                controller: _controller,
                config: QuillEditorConfig(
                  placeholder: 'Start writing your notes...',
                  padding: const EdgeInsets.all(6),
                  customStyles: DefaultStyles(
                    paragraph: DefaultTextBlockStyle(TextStyle(
                      fontSize: 20,
                      height: 2,
                      color: Colors.black,
                    ), HorizontalSpacing.zero, VerticalSpacing.zero, VerticalSpacing(50, 50), BoxDecoration(),),
                  ),
                ),
              )

Set paragraph lineSpace to VerticalSpacing(50, 50) but not increase space between text lines.

Expected results

Increase space between text lines.

Actual results

No effect

Additional Context

No response

[shivansh00011]

@taosimple You're setting the line spacing between paragraphs, not between lines of text within the paragraph. is that what you wanted?

[taosimple]

@shivansh00011

  const DefaultTextBlockStyle(
    this.style,
    this.horizontalSpacing,
    this.verticalSpacing,
    this.lineSpacing,
    this.decoration,
  );

---

verticalSpacing set spacing between paragraphs as expected.

QuillEditorConfig(
                  placeholder: 'Start writing your notes...',
                  padding: const EdgeInsets.all(6),
                  customStyles: DefaultStyles(
                    paragraph: DefaultTextBlockStyle(TextStyle(
                      fontSize: 20,
                      height: 2,
                      color: Colors.black,
                    ), HorizontalSpacing.zero, VerticalSpacing(50, 50), VerticalSpacing(0, 0), BoxDecoration(),),
                  ),
                )

---

---

I want to set spacing between lines of text within the paragraph, but lineSpacing no effect, is it right.

QuillEditorConfig(
                  placeholder: 'Start writing your notes...',
                  padding: const EdgeInsets.all(6),
                  customStyles: DefaultStyles(
                    paragraph: DefaultTextBlockStyle(TextStyle(
                      fontSize: 20,
                      height: 2,
                      color: Colors.black,
                    ), HorizontalSpacing.zero, VerticalSpacing(0, 0), VerticalSpacing(50, 50), BoxDecoration(),),
                  ),
                )

[shivansh00011]

That VerticalSpacing(50, 50) in the lineSpacing slot has ZERO EFFECT inside a paragraph.Why? Because flutter_quill does NOT use that fourth lineSpacing argument in rendering.

VerticalSpacing(0, 0), // space before/after paragraph
VerticalSpacing(50, 50), // THIS IS lineSpacing → IGNORED

That height is the ONLY real way to control line spacing within paragraphs.

TextStyle(
fontSize: 20,
height: 2.0, // This controls line spacing between lines in the same paragraph
)

[taosimple]

I have tried adjusting the line spacing through TextStyle.height, but this also increases the cursor height. The cursor height becomes much larger than the text height, which looks odd. However, there is no property similar to TextField.cursorHeight to adjust the cursor height, so I tried using lineSpacing, but it doesn't seem to work.
Finally, thank you for your patient response. @shivansh00011