QTableView改变单元格文字方向
#include "ProxyModelWithHeaderModels.h"ProxyModelWithHeaderModels::ProxyModelWithHeaderModels(QObject* parent) : QIdentityProxyModel(parent){}QVariant ProxyModelWithHeaderModels::data(const QModelIndex& index, int role) const{ if(m_horizontalHeaderModel && role == HierarchicalHeaderView::HorizontalHeaderDataRole) { QVariant variant; variant.setValue((QObject*)m_horizontalHeaderModel.data()); return variant; } if(m_verticalHeaderModel && role == HierarchicalHeaderView::VerticalHeaderDataRole) { QVariant variant; variant.setValue((QObject*)m_verticalHeaderModel.data()); return variant; } return QIdentityProxyModel::data(index, role);}void ProxyModelWithHeaderModels::setHorizontalHeaderModel(QAbstractItemModel* headerModel){ m_horizontalHeaderModel = headerModel; int cnt = columnCount(); if(cnt) emit headerDataChanged(Qt::Horizontal, 0, cnt - 1);}void ProxyModelWithHeaderModels::setVerticalHeaderModel(QAbstractItemModel* headerModel){ m_verticalHeaderModel = headerModel; int cnt = rowCount(); if(cnt) emit headerDataChanged(Qt::Vertical, 0, cnt - 1);}
#include "HierarchicalHeaderView.h"#include #include #include class HierarchicalHeaderView::private_data{public: QPointer headerModel; private_data() {} void initFromNewModel(int orientation, QAbstractItemModel* model) { headerModel=QPointer(); QVariant v(model->data( QModelIndex(), (orientation==Qt::Horizontal ? HorizontalHeaderDataRole : VerticalHeaderDataRole))); if(v.isValid()) headerModel = qobject_cast(v.value()); } QModelIndex findRootIndex(QModelIndex index) const { while(index.parent().isValid()) index=index.parent(); return index; } QModelIndexList parentIndexes(QModelIndex index) const { QModelIndexList indexes; while(index.isValid()) { indexes.push_front(index); index=index.parent(); } return indexes; } QModelIndex findLeaf(const QModelIndex& curentIndex, int sectionIndex, int& curentLeafIndex) { if(curentIndex.isValid()) { int childCount=curentIndex.model()->columnCount(curentIndex); if(childCount) { for(int i=0; icolumnCount(); ++i) { QModelIndex res(findLeaf(headerModel->index(0, i), sectionIndex, curentLeafIndex)); if(res.isValid()) return res; } } return QModelIndex(); } QModelIndexList searchLeafs(const QModelIndex& curentIndex) const { QModelIndexList res; if(curentIndex.isValid()) { int childCount=curentIndex.model()->columnCount(curentIndex); if(childCount) { for(int i=0; icolumnCount(searchedIndex); for(int i=0; i()) opt.palette.setBrush(QPalette::ButtonText, qvariant_cast(foregroundBrush)); } void setBackgroundBrush(QStyleOptionHeader& opt, const QModelIndex& index) const { QVariant backgroundBrush = index.data(Qt::BackgroundRole); if (backgroundBrush.canConvert()) { opt.palette.setBrush(QPalette::Button, qvariant_cast(backgroundBrush)); opt.palette.setBrush(QPalette::Window, qvariant_cast(backgroundBrush)); } } QSize cellSize (const QModelIndex& leafIndex, const QHeaderView* hv, QStyleOptionHeader styleOptions) const { QSize res; QVariant variant(leafIndex.data(Qt::SizeHintRole)); if (variant.isValid()) res=qvariant_cast(variant); QFont fnt(hv->font()); QVariant var(leafIndex.data(Qt::FontRole)); if (var.isValid() && var.canConvert()) fnt = qvariant_cast(var); fnt.setBold(true); QFontMetrics fm(fnt); QSize size(fm.size(0, leafIndex.data(Qt::DisplayRole).toString())); if(leafIndex.data(Qt::UserRole).isValid()) size.transpose(); QSize decorationsSize(hv->style()->sizeFromContents(QStyle::CT_HeaderSection, &styleOptions, QSize(), hv)); QSize emptyTextSize(fm.size(0, "")); return res.expandedTo(size+decorationsSize-emptyTextSize); } int currentCellWidth (const QModelIndex& searchedIndex, const QModelIndex& leafIndex, int sectionIndex, const QHeaderView* hv) const { QModelIndexList leafsList(leafs(searchedIndex)); if(leafsList.empty()) return hv->sectionSize(sectionIndex); int width=0; int firstLeafSectionIndex=sectionIndex-leafsList.indexOf(leafIndex); for(int i=0; isectionSize(firstLeafSectionIndex+i); return width; } int currentCellLeft (const QModelIndex& searchedIndex, const QModelIndex& leafIndex, int sectionIndex, int left, const QHeaderView* hv) const { QModelIndexList leafsList(leafs(searchedIndex)); if(!leafsList.empty()) { int n=leafsList.indexOf(leafIndex); int firstLeafSectionIndex=sectionIndex-n; --n; for(; n>=0; --n) left-=hv->sectionSize(firstLeafSectionIndex+n); } return left; } int paintHorizontalCell (QPainter *painter, const QHeaderView* hv, const QModelIndex& cellIndex, const QModelIndex& leafIndex, int logicalLeafIndex, const QStyleOptionHeader& styleOptions, const QRect& sectionRect, int top) const { QStyleOptionHeader uniopt(styleOptions); setForegroundBrush(uniopt, cellIndex); setBackgroundBrush(uniopt, cellIndex); int height=cellSize(cellIndex, hv, uniopt).height(); if(cellIndex==leafIndex) height=sectionRect.height()-top; int left=currentCellLeft(cellIndex, leafIndex, logicalLeafIndex, sectionRect.left(), hv); int width=currentCellWidth(cellIndex, leafIndex, logicalLeafIndex, hv); QRect r(left, top, width, height); uniopt.text = cellIndex.data(Qt::DisplayRole).toString(); painter->save(); uniopt.rect = r; if(cellIndex.data(Qt::UserRole).isValid()) { hv->style()->drawControl(QStyle::CE_HeaderSection, &uniopt, painter, hv); QMatrix m; m.rotate(-90); painter->setWorldMatrix(m, true); QRect new_r(0, 0, r.height(), r.width()); new_r.moveCenter(QPoint(-r.center().y(), r.center().x())); uniopt.rect = new_r; hv->style()->drawControl(QStyle::CE_HeaderLabel, &uniopt, painter, hv); } else { hv->style()->drawControl(QStyle::CE_Header, &uniopt, painter, hv); } painter->restore(); return top+height; } void paintHorizontalSection (QPainter *painter, const QRect& sectionRect, int logicalLeafIndex, const QHeaderView* hv, const QStyleOptionHeader& styleOptions, const QModelIndex& leafIndex) const { QPointF oldBO(painter->brushOrigin()); int top=sectionRect.y(); QModelIndexList indexes(parentIndexes(leafIndex)); for(int i=0; isetBrushOrigin(oldBO); } int paintVerticalCell (QPainter *painter, const QHeaderView* hv, const QModelIndex& cellIndex, const QModelIndex& leafIndex, int logicalLeafIndex, const QStyleOptionHeader& styleOptions, const QRect& sectionRect, int left) const { QStyleOptionHeader uniopt(styleOptions); setForegroundBrush(uniopt, cellIndex); setBackgroundBrush(uniopt, cellIndex); int width=cellSize(cellIndex, hv, uniopt).width(); if(cellIndex==leafIndex) width=sectionRect.width()-left; int top=currentCellLeft(cellIndex, leafIndex, logicalLeafIndex, sectionRect-(), hv); int height=currentCellWidth(cellIndex, leafIndex, logicalLeafIndex, hv); QRect r(left, top, width, height); uniopt.text = cellIndex.data(Qt::DisplayRole).toString(); painter->save(); uniopt.rect = r; if(cellIndex.data(Qt::UserRole).isValid()) { hv->style()->drawControl(QStyle::CE_HeaderSection, &uniopt, painter, hv); QMatrix m; m.rotate(-90); painter->setWorldMatrix(m, true); QRect new_r(0, 0, r.height(), r.width()); new_r.moveCenter(QPoint(-r.center().y(), r.center().x())); uniopt.rect = new_r; hv->style()->drawControl(QStyle::CE_HeaderLabel, &uniopt, painter, hv); } else { hv->style()->drawControl(QStyle::CE_Header, &uniopt, painter, hv); } painter->restore(); return left+width; } void paintVerticalSection (QPainter *painter, const QRect& sectionRect, int logicalLeafIndex, const QHeaderView* hv, const QStyleOptionHeader& styleOptions, const QModelIndex& leafIndex) const { QPointF oldBO(painter->brushOrigin()); int left=sectionRect.x(); QModelIndexList indexes(parentIndexes(leafIndex)); for(int i=0; isetBrushOrigin(oldBO); }};HierarchicalHeaderView::HierarchicalHeaderView(Qt::Orientation orientation, QWidget *parent) : QHeaderView(orientation, parent) , m_pd(new private_data()){ connect(this, SIGNAL(sectionResized(int, int, int)), this, SLOT(on_sectionResized(int)));}HierarchicalHeaderView::~HierarchicalHeaderView(){ delete m_pd;}QStyleOptionHeader HierarchicalHeaderView::styleOptionForCell(int logicalInd) const{ QStyleOptionHeader opt; initStyleOption(&opt); if (window()->isActiveWindow()) { opt.state |= QStyle::State_Active; } opt.textAlignment = Qt::AlignCenter; opt.iconAlignment = Qt::AlignVCenter; opt.section = logicalInd; int visual = visualIndex(logicalInd); if (count() == 1) { opt.position = QStyleOptionHeader::OnlyOneSection; } else { if (visual == 0) { opt.position = QStyleOptionHeader::Beginning; } else { opt.position=(visual==count()-1 ? QStyleOptionHeader::End : QStyleOptionHeader::Middle); } } if(sectionsClickable()) { /* if (logicalIndex == d->hover) state |= QStyle::State_MouseOver; if (logicalIndex == d->pressed) { state |= QStyle::State_Sunken; } else*/ { if(highlightSections() && selectionModel()) { if(orientation()==Qt::Horizontal) { if(selectionModel()->columnIntersectsSelection(logicalInd, rootIndex())) { opt.state |= QStyle::State_On; } if(selectionModel()->isColumnSelected(logicalInd, rootIndex())) { opt.state |= QStyle::State_Sunken; } } else { if(selectionModel()->rowIntersectsSelection(logicalInd, rootIndex())) { opt.state |= QStyle::State_On; } if(selectionModel()->isRowSelected(logicalInd, rootIndex())) { opt.state |= QStyle::State_Sunken; } } } } } if(selectionModel()) { bool previousSelected=false; if(orientation()==Qt::Horizontal) previousSelected = selectionModel()->isColumnSelected(logicalIndex(visual - 1), rootIndex()); else previousSelected = selectionModel()->isRowSelected(logicalIndex(visual - 1), rootIndex()); bool nextSelected=false; if(orientation()==Qt::Horizontal) nextSelected = selectionModel()->isColumnSelected(logicalIndex(visual + 1), rootIndex()); else nextSelected = selectionModel()->isRowSelected(logicalIndex(visual + 1), rootIndex()); if (previousSelected && nextSelected) opt.selectedPosition = QStyleOptionHeader::NextAndPreviousAreSelected; else { if (previousSelected) { opt.selectedPosition = QStyleOptionHeader::PreviousIsSelected; } else { if (nextSelected) { opt.selectedPosition = QStyleOptionHeader::NextIsSelected; } else { opt.selectedPosition = QStyleOptionHeader::NotAdjacent; } } } } return opt;}QSize HierarchicalHeaderView::sectionSizeFromContents(int logicalIndex) const{ if(m_pd->headerModel) { QModelIndex curLeafIndex(m_pd->leafIndex(logicalIndex)); if(curLeafIndex.isValid()) { QStyleOptionHeader styleOption(styleOptionForCell(logicalIndex)); QSize size(m_pd->cellSize(curLeafIndex, this, styleOption)); curLeafIndex = curLeafIndex.parent(); while(curLeafIndex.isValid()) { if(orientation() == Qt::Horizontal) { size.rheight() += m_pd->cellSize(curLeafIndex, this, styleOption).height(); } else { size.rwidth() += m_pd->cellSize(curLeafIndex, this, styleOption).width(); } curLeafIndex = curLeafIndex.parent(); } return size; } } return QHeaderView::sectionSizeFromContents(logicalIndex);}void HierarchicalHeaderView::paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const{ if (rect.isValid()) { QModelIndex leafIndex(m_pd->leafIndex(logicalIndex)); if(leafIndex.isValid()) { if(orientation() == Qt::Horizontal) { m_pd->paintHorizontalSection(painter, rect, logicalIndex, this, styleOptionForCell(logicalIndex), leafIndex); } else { m_pd->paintVerticalSection(painter, rect, logicalIndex, this, styleOptionForCell(logicalIndex), leafIndex); } return; } } QHeaderView::paintSection(painter, rect, logicalIndex);}void HierarchicalHeaderView::on_sectionResized(int logicalIndex){ if(isSectionHidden(logicalIndex)) { return; } QModelIndex leafIndex(m_pd->leafIndex(logicalIndex)); if(leafIndex.isValid()) { QModelIndexList leafsList(m_pd->leafs(m_pd->findRootIndex(leafIndex))); for(int n=leafsList.indexOf(leafIndex); n>0; --n) { --logicalIndex; int width = viewport()->width(); int height = viewport()->height(); int pos = sectionViewportPosition(logicalIndex); QRect rect(pos, 0, width - pos, height); if(orientation() == Qt::Horizontal) { if (isRightToLeft()) { rect.setRect(0, 0, pos + sectionSize(logicalIndex), height); } } else { rect.setRect(0, pos, width, height - pos); } viewport()->update(rect.normalized()); } }}void HierarchicalHeaderView::setModel(QAbstractItemModel* model){ m_pd->initFromNewModel(orientation(), model); QHeaderView::setModel(model); int cnt = (orientation() == Qt::Horizontal ? model->columnCount() : model->rowCount()); if(cnt) { initializeSections(0, cnt-1); }}
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