QTextEdit bullets are clipped when increasing text size > 36

t4id; 241849

When using QTextEdit and changing the size of the text, a bullet on the same line will scale with the text. If the text size is increased beyond 36, the left hand side of the bullet is clipped.

In Qt the bullet related drawing/ calculation is done in the following function

void QTextDocumentLayoutPrivate::drawListItem(const QPointF &offset, QPainter *painter, const QAbstractTextDocumentLayout::PaintContext &context, QTextBlock bl, const QTextCharFormat *selectionFormat) const

File: C:\Qt\4.4.1\src\gui\text\qtextdocumentlayout.cpp
Line : 1301

This function is triggered from QTextDocumentLayoutPrivate::drawBlock (
same file, line :1218). We may need to modify qtextlayout.cpp and
qtextengine.cpp as well for text bounding rect.

Draw block is triggered for every text line and generally without
bullets the x & y co-ordinates are (0,0) but when ever we add bullets
there is an offset of 40 in the x position. Qt always tries to draw the
bullet between 0 to 40 (x co-ordinate), for higer font sizes the bullet
width is quite high and bullet x-co-ordinate goes negative hence the
clipping. Ideally Qt should dynamically calculate the bullet width and
accordingly set the x co-ordinate offset. "