I can't say for sure why q*linecontrol passes an empty rect to the updateNeeded() signal when an input mask is set; presumably the empty rect at some point has meant "full update", but there are a few problems with this. Surely a full update is wrong, even if the semantics have been lost in translation somewhere (likely the qlinecontrol refactoring). This fix ensures that empty rects from updateNeeded() are interpreted as a request to update the whole widget. A further improvement would be to ensure the line control doesn't request a full update when an input mask is set. The cursor is usually wider when a mask is set but because of QLineEdit::paintEvent()'s implementation, there is currently a mismatch between the cursor width as seen by q*linecontrol and what is actually drawn, which causes rendering artifacts if updateNeeded() sends the cursorRect(). Since QLineEdit and Q*LineControl aren't actively developed, it's best to keep this fix minimal, although the performance cost of updating the whole line edit when an input mask is set is unfortunate. Task-number: QTBUG-7174 Change-Id: Ie51e015d760915e07b0220b770f04fc958d93a12 Reviewed-by: Andy Shaw <andy.shaw@digia.com> Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com> |
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| .. | ||
| dialogs | ||
| effects | ||
| graphicsview | ||
| itemviews | ||
| kernel | ||
| styles | ||
| util | ||
| widgets | ||
| widgets.pro | ||