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View Full Version : Qt QTableWidget - Cell Widget static position on MacOsX



karankumar1609
25th March 2013, 14:08
Hello Everyone,

I have got stucked in a problem which works fine on my windows OS and not on MAC OSX.

I have added a QPushButton in my table widget but when the list of table widget increases then on scrolling added push button not move.



QPushButton *deleteButton = new QPushButton(Delete);
deleteButton->setFixedSize(32, 32);
deleteButton->setStyleSheet("QPushButton { border-image: url(:/Resource/Images/DashBoard/checkout.png); }");
ui->tableWidget_fileList->setCellWidget(row, 4, deleteButton);


it seems that the position of the buttons are static.
Unable to get out of this problem, anyone have adea about that?

karankumar1609
26th March 2013, 11:46
After a long compiling of Qt source .... and YAY
i got my problem resolved....
I applied this patch provided to me by Qt Commercial Support. This resolved my Mac scroll problems on Qt 4.8.5:


--- /Users/irfanomair/dev/qt-src-carbon-4.8.0/src/gui/kernel/qwidget_mac.mm 2011-12-15 10:38:21.000000000 -0800
+++ kernel/qwidget_mac.mm 2012-09-18 17:17:03.000000000 -0700
@@ -1,22 +1,41 @@

@@ -4684,15 +4703,14 @@
}

// Scroll the whole widget if qscrollRect is not valid:
- QRect validScrollRect = qscrollRect.isValid() ? qscrollRect : q->rect();
- validScrollRect &= clipRect();
+ QRect validScrollRect = qscrollRect.isValid() ? qscrollRect : QRect(0, 0, q->width(), q->height());

// If q is overlapped by other widgets, we cannot just blit pixels since
// this will move overlapping widgets as well. In case we just update:
const bool overlapped = isOverlapped(validScrollRect.translated(data.crect .topLeft()));
const bool accelerateScroll = accelEnv && isOpaque && !overlapped;
const bool isAlien = (q->internalWinId() == 0);
- const QPoint scrollDelta(dx, dy);
+

// If qscrollRect is valid, we are _not_ supposed to scroll q's children (as documented).
// But we do scroll children (and the whole of q) if qscrollRect is invalid. This case is
@@ -4714,7 +4732,6 @@
}else {
update_sys(qscrollRect);
}
- return;
}

#ifdef QT_MAC_USE_COCOA
@@ -4731,6 +4748,7 @@
// moved when the parent is scrolled. All directly or indirectly moved
// children will receive a move event before the function call returns.
QWidgetList movedChildren;
+ const QPoint scrollDelta(dx, dy);
if (scrollChildren) {
QObjectList children = q->children();