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Add some enablers to QTextDocumentLayout

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Required to access internals used in the layout process, so that
we can present the layout in the scenegraph. For instance, the
frameBoundingRect() for tables will be the internal bounding rect
of the cells. To avoid regressions, I've added a separate function
for the outer bounding rect. For now, this is private API, but if
it turns out to be useful, the functions can easily be added as
virtual to QAbstractTextDocumentLayout.

Task-number: QTBUG-20917
Change-Id: I04e07d3850b21f9f0704bf8c8a3ffe97ee5c3fda
Reviewed-on: http://codereview.qt-project.org/5539
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
This commit is contained in:
Eskil Abrahamsen Blomfeldt 2011-09-23 12:50:44 +02:00 committed by Qt by Nokia
parent 1cfee04d5e
commit c87dcd9a5d
2 changed files with 43 additions and 1 deletions
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40
src/gui/text/qtextdocumentlayout.cpp
View File

@ -3136,6 +3136,46 @@ void QTextDocumentLayout::setFixedColumnWidth(int width)
d->fixedColumnWidth = width;
}
QRectF QTextDocumentLayout::tableCellBoundingRect(QTextTable *table, const QTextTableCell &cell) const
{
if (!cell.isValid())
return QRectF();
QTextTableData *td = static_cast<QTextTableData *>(data(table));
QRectF tableRect = tableBoundingRect(table);
QRectF cellRect = td->cellRect(cell);
return cellRect.translated(tableRect.topLeft());
}
QRectF QTextDocumentLayout::tableBoundingRect(QTextTable *table) const
{
Q_D(const QTextDocumentLayout);
if (d->docPrivate->pageSize.isNull())
return QRectF();
d->ensureLayoutFinished();
QPointF pos;
const int framePos = table->firstPosition();
QTextFrame *f = table;
while (f) {
QTextFrameData *fd = data(f);
pos += fd->position.toPointF();
if (f != table) {
if (QTextTable *table = qobject_cast<QTextTable *>(f)) {
QTextTableCell cell = table->cellAt(framePos);
if (cell.isValid())
pos += static_cast<QTextTableData *>(fd)->cellPosition(cell).toPointF();
}
}
f = f->parentFrame();
}
return QRectF(pos, data(table)->size.toSizeF());
}
QRectF QTextDocumentLayout::frameBoundingRect(QTextFrame *frame) const
{
Q_D(const QTextDocumentLayout);

4
src/gui/text/qtextdocumentlayout_p.h
View File

@ -60,7 +60,7 @@
QT_BEGIN_NAMESPACE
class QTextListFormat;
class QTextTableCell;
class QTextDocumentLayoutPrivate;
class Q_GUI_EXPORT QTextDocumentLayout : public QAbstractTextDocumentLayout
@ -91,6 +91,8 @@ public:
virtual QRectF frameBoundingRect(QTextFrame *frame) const;
virtual QRectF blockBoundingRect(const QTextBlock &block) const;
QRectF tableBoundingRect(QTextTable *table) const;
QRectF tableCellBoundingRect(QTextTable *table, const QTextTableCell &cell) const;
// ####
int layoutStatus() const;