AuroraMiddleware/qt5base-lts
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

QPageLayout: use QExplicitlySharedDataPointer

Browse Source 
Many setters check for an actual change before making changes to
data members, but because of QSharedDataPointer, the detach had
already happened by the time the comparison returned false.

Change-Id: I320806e74de4a64fa3a340831621c1f5120ebb0f
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: John Layt <jlayt@kde.org>
This commit is contained in:
Marc Mutz 2014-04-05 00:51:43 +02:00 committed by The Qt Project
parent 7b3d9bbdf2
commit 0de0f494bd
2 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/gui/painting/qpagelayout.cpp
View File

@ -466,6 +466,7 @@ bool QPageLayout::isValid() const
void QPageLayout::setMode(Mode mode)
{
d.detach();
d->m_mode = mode;
}
@ -494,6 +495,7 @@ void QPageLayout::setPageSize(const QPageSize &pageSize, const QMarginsF &minMar
{
if (!pageSize.isValid())
return;
d.detach();
d->m_pageSize = pageSize;
d->m_fullSize = d->fullSizeUnits(d->m_units);
d->setDefaultMargins(minMargins);
@ -522,6 +524,7 @@ QPageSize QPageLayout::pageSize() const
void QPageLayout::setOrientation(Orientation orientation)
{
if (orientation != d->m_orientation) {
d.detach();
d->m_orientation = orientation;
d->m_fullSize = d->fullSizeUnits(d->m_units);
// Adust the max margins to reflect change in max page size
@ -549,6 +552,7 @@ QPageLayout::Orientation QPageLayout::orientation() const
void QPageLayout::setUnits(Unit units)
{
if (units != d->m_units) {
d.detach();
d->m_margins = qt_convertMargins(d->m_margins, d->m_units, units);
d->m_minMargins = qt_convertMargins(d->m_minMargins, d->m_units, units);
d->m_maxMargins = qt_convertMargins(d->m_maxMargins, d->m_units, units);
@ -585,6 +589,7 @@ QPageLayout::Unit QPageLayout::units() const
bool QPageLayout::setMargins(const QMarginsF &margins)
{
if (d->m_mode == FullPageMode) {
d.detach();
d->m_margins = margins;
return true;
} else if (margins.left() >= d->m_minMargins.left()
@ -595,6 +600,7 @@ bool QPageLayout::setMargins(const QMarginsF &margins)
&& margins.right() <= d->m_maxMargins.right()
&& margins.top() <= d->m_maxMargins.top()
&& margins.bottom() <= d->m_maxMargins.bottom()) {
d.detach();
d->m_margins = margins;
return true;
}
@ -621,6 +627,7 @@ bool QPageLayout::setLeftMargin(qreal leftMargin)
{
if (d->m_mode == FullPageMode
|| (leftMargin >= d->m_minMargins.left() && leftMargin <= d->m_maxMargins.left())) {
d.detach();
d->m_margins.setLeft(leftMargin);
return true;
}
@ -647,6 +654,7 @@ bool QPageLayout::setRightMargin(qreal rightMargin)
{
if (d->m_mode == FullPageMode
|| (rightMargin >= d->m_minMargins.right() && rightMargin <= d->m_maxMargins.right())) {
d.detach();
d->m_margins.setRight(rightMargin);
return true;
}
@ -673,6 +681,7 @@ bool QPageLayout::setTopMargin(qreal topMargin)
{
if (d->m_mode == FullPageMode
|| (topMargin >= d->m_minMargins.top() && topMargin <= d->m_maxMargins.top())) {
d.detach();
d->m_margins.setTop(topMargin);
return true;
}
@ -699,6 +708,7 @@ bool QPageLayout::setBottomMargin(qreal bottomMargin)
{
if (d->m_mode == FullPageMode
|| (bottomMargin >= d->m_minMargins.bottom() && bottomMargin <= d->m_maxMargins.bottom())) {
d.detach();
d->m_margins.setBottom(bottomMargin);
return true;
}
@ -764,6 +774,7 @@ QMargins QPageLayout::marginsPixels(int resolution) const
void QPageLayout::setMinimumMargins(const QMarginsF &minMargins)
{
d.detach();
d->setDefaultMargins(minMargins);
}

2
src/gui/painting/qpagelayout.h
View File

@ -137,7 +137,7 @@ public:
private:
friend class QPageLayoutPrivate;
QSharedDataPointer<QPageLayoutPrivate> d;
QExplicitlySharedDataPointer<QPageLayoutPrivate> d;
};
Q_DECLARE_SHARED(QPageLayout)