diff options
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/graphicsview/qgridlayoutengine.cpp | 95 |
1 files changed, 45 insertions, 50 deletions
diff --git a/src/gui/graphicsview/qgridlayoutengine.cpp b/src/gui/graphicsview/qgridlayoutengine.cpp index e486b4d..9785b15 100644 --- a/src/gui/graphicsview/qgridlayoutengine.cpp +++ b/src/gui/graphicsview/qgridlayoutengine.cpp @@ -1107,7 +1107,50 @@ QSizeF QGridLayoutEngine::sizeHint(const QLayoutStyleInfo &styleInfo, Qt::SizeHi { QGridLayoutBox sizehint_totalBoxes[NOrientations]; - if(rowCount() < 1 || columnCount() < 1 || !hasDynamicConstraint()) { + bool sizeHintCalculated = false; + + if (hasDynamicConstraint() && rowCount() > 0 && columnCount() > 0) { + if (constraintOrientation() == Qt::Vertical) { + //We have items whose height depends on their width + if (constraint.width() >= 0) { + if(q_cachedDataForStyleInfo != styleInfo) + ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, NULL, NULL, Qt::Horizontal); + else + sizehint_totalBoxes[Hor] = q_totalBoxes[Hor]; + QVector<qreal> sizehint_xx; + QVector<qreal> sizehint_widths; + + sizehint_xx.resize(columnCount()); + sizehint_widths.resize(columnCount()); + qreal width = constraint.width(); + //Calculate column widths and positions, and put results in q_xx.data() and q_widths.data() so that we can use this information as + //constraints to find the row heights + q_columnData.calculateGeometries(0, columnCount(), width, sizehint_xx.data(), sizehint_widths.data(), + 0, sizehint_totalBoxes[Hor]); + ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], styleInfo, sizehint_xx.data(), sizehint_widths.data(), Qt::Vertical); + sizeHintCalculated = true; + } + } else { + if (constraint.height() >= 0) { + //We have items whose width depends on their height + ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], styleInfo, NULL, NULL, Qt::Vertical); + QVector<qreal> sizehint_yy; + QVector<qreal> sizehint_heights; + + sizehint_yy.resize(rowCount()); + sizehint_heights.resize(rowCount()); + qreal height = constraint.height(); + //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data() so that we can use this information as + //constraints to find the column widths + q_rowData.calculateGeometries(0, rowCount(), height, sizehint_yy.data(), sizehint_heights.data(), + 0, sizehint_totalBoxes[Ver]); + ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, sizehint_yy.data(), sizehint_heights.data(), Qt::Vertical); + sizeHintCalculated = true; + } + } + } + + if (!sizeHintCalculated) { //No items with height for width, so it doesn't matter which order we do these in if(q_cachedDataForStyleInfo != styleInfo) { ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, NULL, NULL, Qt::Horizontal); @@ -1116,55 +1159,7 @@ QSizeF QGridLayoutEngine::sizeHint(const QLayoutStyleInfo &styleInfo, Qt::SizeHi sizehint_totalBoxes[Hor] = q_totalBoxes[Hor]; sizehint_totalBoxes[Ver] = q_totalBoxes[Ver]; } - } else if(constraintOrientation() == Qt::Vertical) { - //We have items whose width depends on their height - if(q_cachedDataForStyleInfo != styleInfo) - ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, NULL, NULL, Qt::Horizontal); - else - sizehint_totalBoxes[Hor] = q_totalBoxes[Hor]; - QVector<qreal> sizehint_xx; - QVector<qreal> sizehint_widths; - - sizehint_xx.resize(columnCount()); - sizehint_widths.resize(columnCount()); - qreal width = constraint.width(); - if(width < 0) { - /* It's not obvious what the behaviour should be. */ -/* if(which == Qt::MaximumSize) - width = sizehint_totalBoxes[Hor].q_maximumSize; - else if(which == Qt::MinimumSize) - width = sizehint_totalBoxes[Hor].q_minimumSize; - else*/ - width = sizehint_totalBoxes[Hor].q_preferredSize; - } - //Calculate column widths and positions, and put results in q_xx.data() and q_widths.data() so that we can use this information as - //constraints to find the row heights - q_columnData.calculateGeometries(0, columnCount(), width, sizehint_xx.data(), sizehint_widths.data(), - 0, sizehint_totalBoxes[Hor]); - ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], styleInfo, sizehint_xx.data(), sizehint_widths.data(), Qt::Vertical); - } else { - //We have items whose height depends on their width - ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], styleInfo, NULL, NULL, Qt::Vertical); - QVector<qreal> sizehint_yy; - QVector<qreal> sizehint_heights; - - sizehint_yy.resize(rowCount()); - sizehint_heights.resize(rowCount()); - qreal height = constraint.height(); - if(height < 0) { -/* if(which == Qt::MaximumSize) - height = sizehint_totalBoxes[Ver].q_maximumSize; - else if(which == Qt::MinimumSize) - height = sizehint_totalBoxes[Ver].q_minimumSize; - else*/ - height = sizehint_totalBoxes[Ver].q_preferredSize; - } - //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data() so that we can use this information as - //constraints to find the column widths - q_rowData.calculateGeometries(0, rowCount(), height, sizehint_yy.data(), sizehint_heights.data(), - 0, sizehint_totalBoxes[Ver]); - ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], styleInfo, sizehint_yy.data(), sizehint_heights.data(), Qt::Vertical); - } + } switch (which) { case Qt::MinimumSize: |