C++ QTextTableFormat::alignment方法代码示例

void HtmlExporter::emitTable( const QTextTable *table )
{
    //qDebug() << "emitTable" << html;
    QTextTableFormat format = table->format();

    html += QLatin1String( "\n<table" );

    if ( format.hasProperty( QTextFormat::FrameBorder ) ) {
        emitAttribute( "border", QString::number( format.border() ) );
    }

    emitFloatStyle( format.position() );
    emitAlignment( format.alignment() );
    emitTextLength( "width", format.width() );

    if ( format.hasProperty( QTextFormat::TableCellSpacing ) ) {
        emitAttribute( "cellspacing", QString::number( format.cellSpacing() ) );
    }
    if ( format.hasProperty( QTextFormat::TableCellPadding ) ) {
        emitAttribute( "cellpadding", QString::number( format.cellPadding() ) );
    }

    QBrush bg = format.background();
    if ( bg != Qt::NoBrush ) {
        emitAttribute( "bgcolor", bg.color().name() );
    }

    html += QLatin1Char( '>' );

    const int rows = table->rows();
    const int columns = table->columns();

    QVector<QTextLength> columnWidths = format.columnWidthConstraints();
    if ( columnWidths.isEmpty() ) {
        columnWidths.resize( columns );
        columnWidths.fill( QTextLength() );
    }
//    Q_ASSERT(columnWidths.count() == columns);

    QVarLengthArray<bool> widthEmittedForColumn( columns );
    for ( int i = 0; i < columns; ++i ) {
        widthEmittedForColumn[i] = false;
    }

    const int headerRowCount = qMin( format.headerRowCount(), rows );
    if ( headerRowCount > 0 ) {
        html += QLatin1String( "<thead>" );
    }

    for ( int row = 0; row < rows; ++row ) {
        html += QLatin1String( "\n<tr>" );

        for ( int col = 0; col < columns; ++col ) {
            const QTextTableCell cell = table->cellAt( row, col );

            // for col/rowspans
            if ( cell.row() != row ) {
                continue;
            }

            if ( cell.column() != col ) {
                continue;
            }

            html += QLatin1String( "\n<td" );

            if ( !widthEmittedForColumn[col] ) {
                emitTextLength( "width", columnWidths.at( col ) );
                widthEmittedForColumn[col] = true;
            }

            if ( cell.columnSpan() > 1 ) {
                emitAttribute( "colspan", QString::number( cell.columnSpan() ) );
            }

            if ( cell.rowSpan() > 1 ) {
                emitAttribute( "rowspan", QString::number( cell.rowSpan() ) );
            }

            const QTextCharFormat cellFormat = cell.format();
            QBrush bg = cellFormat.background();
            if ( bg != Qt::NoBrush ) {
                emitAttribute( "bgcolor", bg.color().name() );
            }

            html += QLatin1Char( '>' );

            emitFrame( cell.begin() );

            html += QLatin1String( "</td>" );
        }

        html += QLatin1String( "</tr>" );
        if ( headerRowCount > 0 && row == headerRowCount - 1 ) {
            html += QLatin1String( "</thead>" );
        }
    }

    html += QLatin1String( "</table>" );
}

void KoTextLayoutTableArea::layoutColumns()
{
    QTextTableFormat tableFormat = d->table->format();

    d->columnPositions.resize(d->table->columns() + 1);
    d->columnWidths.resize(d->table->columns() + 1);

    // Table width.
    d->tableWidth = 0;
    qreal parentWidth = right() - left();
    if (tableFormat.width().rawValue() == 0 || tableFormat.alignment() == Qt::AlignJustify) {
        // We got a zero width value or alignment is justify, so use 100% of parent.
        d->tableWidth = parentWidth - tableFormat.leftMargin() - tableFormat.rightMargin();
    } else {
        if (tableFormat.width().type() == QTextLength::FixedLength) {
            // Fixed length value, so use the raw value directly.
            d->tableWidth = tableFormat.width().rawValue();
        } else if (tableFormat.width().type() == QTextLength::PercentageLength) {
            // Percentage length value, so use a percentage of parent width.
            d->tableWidth = tableFormat.width().rawValue() * (parentWidth / 100)
                - tableFormat.leftMargin() - tableFormat.rightMargin();
        } else {
            // Unknown length type, so use 100% of parent.
            d->tableWidth = parentWidth - tableFormat.leftMargin() - tableFormat.rightMargin();
        }
    }

    // Column widths.
    qreal availableWidth = d->tableWidth; // Width available for columns.
    QList<int> fixedWidthColumns; // List of fixed width columns.
    QList<int> relativeWidthColumns; // List of relative width columns.
    qreal relativeWidthSum = 0; // Sum of relative column width values.
    int numNonStyleColumns = 0;
    for (int col = 0; col < d->table->columns(); ++col) {
        KoTableColumnStyle columnStyle = d->carsManager.columnStyle(col);

        if (columnStyle.hasProperty(KoTableColumnStyle::RelativeColumnWidth)) {
            // Relative width specified. Will be handled in the next loop.
            d->columnWidths[col] = 0.0;
            relativeWidthColumns.append(col);
            relativeWidthSum += columnStyle.relativeColumnWidth();
        } else if (columnStyle.hasProperty(KoTableColumnStyle::ColumnWidth)) {
            // Only width specified, so use it.
            d->columnWidths[col] = columnStyle.columnWidth();
            fixedWidthColumns.append(col);
            availableWidth -= columnStyle.columnWidth();
        } else {
            // Neither width nor relative width specified.
            d->columnWidths[col] = 0.0;
            relativeWidthColumns.append(col); // handle it as a relative width column without asking for anything
            ++numNonStyleColumns;
        }
    }

    // Handle the case that the fixed size columns are larger then the defined table width
    if (availableWidth < 0.0) {
        if (tableFormat.width().rawValue() == 0 && fixedWidthColumns.count() > 0) {
            // If not table width was defined then we need to scale down the fixed size columns so they match
            // into the width of the table.
            qreal diff = (-availableWidth) / qreal(fixedWidthColumns.count());
            foreach(int col, fixedWidthColumns) {
                d->columnWidths[col] = qMax(qreal(0.0), d->columnWidths[col] - diff);
            }
        }