/*!
Draw a text document into a rectangle
\param painter Painter
\param rect Traget rectangle
\param flags Alignments/Text flags, see QPainter::drawText()
\param text Text document
*/
void QwtPainter::drawSimpleRichText( QPainter *painter, const QRectF &rect,
int flags, const QTextDocument &text )
{
QTextDocument *txt = text.clone();
painter->save();
painter->setFont( txt->defaultFont() );
qwtUnscaleFont( painter );
txt->setDefaultFont( painter->font() );
txt->setPageSize( QSizeF( rect.width(), QWIDGETSIZE_MAX ) );
QAbstractTextDocumentLayout* layout = txt->documentLayout();
const double height = layout->documentSize().height();
double y = rect.y();
if ( flags & Qt::AlignBottom )
y += ( rect.height() - height );
else if ( flags & Qt::AlignVCenter )
y += ( rect.height() - height ) / 2;
QAbstractTextDocumentLayout::PaintContext context;
context.palette.setColor( QPalette::Text, painter->pen().color() );
painter->translate( rect.x(), y );
layout->draw( painter, context );
painter->restore();
delete txt;
}
QTextDocument *QTextDocumentProto::clone(QObject *parent) const
{
QTextDocument *item = qscriptvalue_cast<QTextDocument*>(thisObject());
if (item)
return item->clone(parent);
return 0;
}
QTextDocument *M_PageSize::nulldoc( QString htm )
{
QTextDocument *doc = new QTextDocument;
if (htm.size() > 2) {
doc->setHtml(htm);
}
HandlePrint(doc);
return doc->clone();
}
void testFindingTables()
{
// How to find all the tables in a QTextDocument?
QTextDocument textDoc;
QTextCursor c( &textDoc );
QTextTable* firstTable = c.insertTable( 2, 2 );
QTextTableCell bottomRight = firstTable->cellAt( 1, 1 );
QTextTable* secondTable = bottomRight.firstCursorPosition().insertTable( 3, 3 ); // a nested table
c.movePosition( QTextCursor::End );
QTextTable* thirdTable = c.insertTable( 1, 1 );
thirdTable->firstCursorPosition().insertText( "in table" );
c.insertText( "Foo" );
QList<QTextTable *> origTables;
origTables << firstTable << secondTable << thirdTable;
// A generic and slow solution is
// curs.currentTable() && !tablesFound.contains(curs.currentTable())
// for each cursor position. Surely there's better.
// We could jump to currentFrame().lastCursorPosition() but then it would skip
// nested tables.
QTextDocument* clonedDoc = textDoc.clone();
QSet<QTextTable *> tablesFound;
{
QTextCursor curs(clonedDoc);
while (!curs.atEnd()) {
QTextTable* currentTable = curs.currentTable();
if ( currentTable && !tablesFound.contains(currentTable) ) {
tablesFound.insert( currentTable );
}
curs.movePosition( QTextCursor::NextCharacter );
}
QCOMPARE( tablesFound.size(), 3 );
}
// Let's do something else then, let's find them by cursor position
QList<QTextTable *> tablesByPos;
{
// first test
const int firstPos = firstTable->firstCursorPosition().position();
QTextCursor curs( clonedDoc );
curs.setPosition( firstPos );
QVERIFY( curs.currentTable() );
// generic loop. works this approach is in TextDocument::breakTables now.
Q_FOREACH( QTextTable* origTable, origTables ) {
QTextCursor curs( clonedDoc );
curs.setPosition( origTable->firstCursorPosition().position() );
tablesByPos.append( curs.currentTable() );
}
QCOMPARE( tablesByPos.size(), 3 );
QCOMPARE( tablesByPos.toSet(), tablesFound );
}
/*!
Draw a text document into a rectangle
\param painter Painter
\param rect Traget rectangle
\param flags Alignments/Text flags, see QPainter::drawText()
\param text Text document
*/
void QwtPainter::drawSimpleRichText( QPainter *painter, const QRectF &rect,
int flags, const QTextDocument &text )
{
QTextDocument *txt = text.clone();
painter->save();
QRectF unscaledRect = rect;
if ( painter->font().pixelSize() < 0 )
{
const QSize res = qwtScreenResolution();
const QPaintDevice *pd = painter->device();
if ( pd->logicalDpiX() != res.width() ||
pd->logicalDpiY() != res.height() )
{
QTransform transform;
transform.scale( res.width() / double( pd->logicalDpiX() ),
res.height() / double( pd->logicalDpiY() ));
painter->setWorldTransform( transform, true );
unscaledRect = transform.inverted().mapRect(rect);
}
}
txt->setDefaultFont( painter->font() );
txt->setPageSize( QSizeF( unscaledRect.width(), QWIDGETSIZE_MAX ) );
QAbstractTextDocumentLayout* layout = txt->documentLayout();
const double height = layout->documentSize().height();
double y = unscaledRect.y();
if ( flags & Qt::AlignBottom )
y += ( unscaledRect.height() - height );
else if ( flags & Qt::AlignVCenter )
y += ( unscaledRect.height() - height ) / 2;
QAbstractTextDocumentLayout::PaintContext context;
context.palette.setColor( QPalette::Text, painter->pen().color() );
painter->translate( unscaledRect.x(), y );
layout->draw( painter, context );
painter->restore();
delete txt;
}
