summaryrefslogtreecommitdiffstats
path: root/application/groupview/GroupView.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'application/groupview/GroupView.cpp')
-rw-r--r--application/groupview/GroupView.cpp1003
1 files changed, 1003 insertions, 0 deletions
diff --git a/application/groupview/GroupView.cpp b/application/groupview/GroupView.cpp
new file mode 100644
index 00000000..89694b87
--- /dev/null
+++ b/application/groupview/GroupView.cpp
@@ -0,0 +1,1003 @@
+#include "GroupView.h"
+
+#include <QPainter>
+#include <QApplication>
+#include <QtMath>
+#include <QMouseEvent>
+#include <QListView>
+#include <QPersistentModelIndex>
+#include <QDrag>
+#include <QMimeData>
+#include <QCache>
+#include <QScrollBar>
+
+#include "VisualGroup.h"
+#include <QDebug>
+
+template <typename T> bool listsIntersect(const QList<T> &l1, const QList<T> t2)
+{
+ for (auto &item : l1)
+ {
+ if (t2.contains(item))
+ {
+ return true;
+ }
+ }
+ return false;
+}
+
+GroupView::GroupView(QWidget *parent)
+ : QAbstractItemView(parent)
+{
+ setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+ setAcceptDrops(true);
+ setAutoScroll(true);
+}
+
+GroupView::~GroupView()
+{
+ qDeleteAll(m_groups);
+ m_groups.clear();
+}
+
+void GroupView::setModel(QAbstractItemModel *model)
+{
+ QAbstractItemView::setModel(model);
+ connect(model, &QAbstractItemModel::modelReset, this, &GroupView::modelReset);
+}
+
+void GroupView::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight,
+ const QVector<int> &roles)
+{
+ scheduleDelayedItemsLayout();
+}
+void GroupView::rowsInserted(const QModelIndex &parent, int start, int end)
+{
+ scheduleDelayedItemsLayout();
+}
+
+void GroupView::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
+{
+ scheduleDelayedItemsLayout();
+}
+
+class LocaleString : public QString
+{
+public:
+ LocaleString(const char *s) : QString(s)
+ {
+ }
+ LocaleString(const QString &s) : QString(s)
+ {
+ }
+};
+
+inline bool operator<(const LocaleString &lhs, const LocaleString &rhs)
+{
+ return (QString::localeAwareCompare(lhs, rhs) < 0);
+}
+
+void GroupView::updateGeometries()
+{
+ geometryCache.clear();
+ int previousScroll = verticalScrollBar()->value();
+
+ QMap<LocaleString, VisualGroup *> cats;
+
+ for (int i = 0; i < model()->rowCount(); ++i)
+ {
+ const QString groupName =
+ model()->index(i, 0).data(GroupViewRoles::GroupRole).toString();
+ if (!cats.contains(groupName))
+ {
+ VisualGroup *old = this->category(groupName);
+ if (old)
+ {
+ cats.insert(groupName, new VisualGroup(old));
+ }
+ else
+ {
+ cats.insert(groupName, new VisualGroup(groupName, this));
+ }
+ }
+ }
+
+ /*if (m_editedCategory)
+ {
+ m_editedCategory = cats[m_editedCategory->text];
+ }*/
+
+ qDeleteAll(m_groups);
+ m_groups = cats.values();
+
+ for (auto cat : m_groups)
+ {
+ cat->update();
+ }
+
+ if (m_groups.isEmpty())
+ {
+ verticalScrollBar()->setRange(0, 0);
+ }
+ else
+ {
+ int totalHeight = 0;
+ // top margin
+ totalHeight += m_categoryMargin;
+ int itemScroll = 0;
+ for (auto category : m_groups)
+ {
+ category->m_verticalPosition = totalHeight;
+ totalHeight += category->totalHeight() + m_categoryMargin;
+ if(!itemScroll && category->totalHeight() != 0)
+ {
+ itemScroll = category->contentHeight() / category->numRows();
+ }
+ }
+ // do not divide by zero
+ if(itemScroll == 0)
+ itemScroll = 64;
+
+ totalHeight += m_bottomMargin;
+ verticalScrollBar()->setSingleStep ( itemScroll );
+ const int rowsPerPage = qMax ( viewport()->height() / itemScroll, 1 );
+ verticalScrollBar()->setPageStep ( rowsPerPage * itemScroll );
+
+ verticalScrollBar()->setRange(0, totalHeight - height());
+ }
+
+ verticalScrollBar()->setValue(qMin(previousScroll, verticalScrollBar()->maximum()));
+
+ viewport()->update();
+}
+
+void GroupView::modelReset()
+{
+ scheduleDelayedItemsLayout();
+ executeDelayedItemsLayout();
+}
+
+bool GroupView::isIndexHidden(const QModelIndex &index) const
+{
+ VisualGroup *cat = category(index);
+ if (cat)
+ {
+ return cat->collapsed;
+ }
+ else
+ {
+ return false;
+ }
+}
+
+VisualGroup *GroupView::category(const QModelIndex &index) const
+{
+ return category(index.data(GroupViewRoles::GroupRole).toString());
+}
+
+VisualGroup *GroupView::category(const QString &cat) const
+{
+ for (auto group : m_groups)
+ {
+ if (group->text == cat)
+ {
+ return group;
+ }
+ }
+ return nullptr;
+}
+
+VisualGroup *GroupView::categoryAt(const QPoint &pos) const
+{
+ for (auto group : m_groups)
+ {
+ if(group->hitScan(pos) & VisualGroup::CheckboxHit)
+ {
+ return group;
+ }
+ }
+ return nullptr;
+}
+
+int GroupView::calculateItemsPerRow() const
+{
+ return qFloor((qreal)(contentWidth()) / (qreal)(itemWidth() + m_spacing));
+}
+
+int GroupView::contentWidth() const
+{
+ return width() - m_leftMargin - m_rightMargin;
+}
+
+int GroupView::itemWidth() const
+{
+ return m_itemWidth;
+}
+
+void GroupView::mousePressEvent(QMouseEvent *event)
+{
+ // endCategoryEditor();
+
+ QPoint visualPos = event->pos();
+ QPoint geometryPos = event->pos() + offset();
+
+ QPersistentModelIndex index = indexAt(visualPos);
+
+ m_pressedIndex = index;
+ m_pressedAlreadySelected = selectionModel()->isSelected(m_pressedIndex);
+ m_pressedPosition = geometryPos;
+
+ m_pressedCategory = categoryAt(geometryPos);
+ if (m_pressedCategory)
+ {
+ setState(m_pressedCategory->collapsed ? ExpandingState : CollapsingState);
+ event->accept();
+ return;
+ }
+
+ if (index.isValid() && (index.flags() & Qt::ItemIsEnabled))
+ {
+ if(index != currentIndex())
+ {
+ // FIXME: better!
+ m_currentCursorColumn = -1;
+ }
+ // we disable scrollTo for mouse press so the item doesn't change position
+ // when the user is interacting with it (ie. clicking on it)
+ bool autoScroll = hasAutoScroll();
+ setAutoScroll(false);
+ selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
+
+ setAutoScroll(autoScroll);
+ QRect rect(visualPos, visualPos);
+ setSelection(rect, QItemSelectionModel::ClearAndSelect);
+
+ // signal handlers may change the model
+ emit pressed(index);
+ }
+ else
+ {
+ // Forces a finalize() even if mouse is pressed, but not on a item
+ selectionModel()->select(QModelIndex(), QItemSelectionModel::Select);
+ }
+}
+
+void GroupView::mouseMoveEvent(QMouseEvent *event)
+{
+ QPoint topLeft;
+ QPoint visualPos = event->pos();
+ QPoint geometryPos = event->pos() + offset();
+
+ if (state() == ExpandingState || state() == CollapsingState)
+ {
+ return;
+ }
+
+ if (state() == DraggingState)
+ {
+ topLeft = m_pressedPosition - offset();
+ if ((topLeft - event->pos()).manhattanLength() > QApplication::startDragDistance())
+ {
+ m_pressedIndex = QModelIndex();
+ startDrag(model()->supportedDragActions());
+ setState(NoState);
+ stopAutoScroll();
+ }
+ return;
+ }
+
+ if (selectionMode() != SingleSelection)
+ {
+ topLeft = m_pressedPosition - offset();
+ }
+ else
+ {
+ topLeft = geometryPos;
+ }
+
+ if (m_pressedIndex.isValid() && (state() != DragSelectingState) &&
+ (event->buttons() != Qt::NoButton) && !selectedIndexes().isEmpty())
+ {
+ setState(DraggingState);
+ return;
+ }
+
+ if ((event->buttons() & Qt::LeftButton) && selectionModel())
+ {
+ setState(DragSelectingState);
+
+ setSelection(QRect(visualPos, visualPos), QItemSelectionModel::ClearAndSelect);
+ QModelIndex index = indexAt(visualPos);
+
+ // set at the end because it might scroll the view
+ if (index.isValid() && (index != selectionModel()->currentIndex()) &&
+ (index.flags() & Qt::ItemIsEnabled))
+ {
+ selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
+ }
+ }
+}
+
+void GroupView::mouseReleaseEvent(QMouseEvent *event)
+{
+ QPoint visualPos = event->pos();
+ QPoint geometryPos = event->pos() + offset();
+ QPersistentModelIndex index = indexAt(visualPos);
+
+ bool click = (index == m_pressedIndex && index.isValid()) ||
+ (m_pressedCategory && m_pressedCategory == categoryAt(geometryPos));
+
+ if (click && m_pressedCategory)
+ {
+ if (state() == ExpandingState)
+ {
+ m_pressedCategory->collapsed = false;
+ updateGeometries();
+ viewport()->update();
+ event->accept();
+ return;
+ }
+ else if (state() == CollapsingState)
+ {
+ m_pressedCategory->collapsed = true;
+ updateGeometries();
+ viewport()->update();
+ event->accept();
+ return;
+ }
+ }
+
+ m_ctrlDragSelectionFlag = QItemSelectionModel::NoUpdate;
+
+ setState(NoState);
+
+ if (click)
+ {
+ if (event->button() == Qt::LeftButton)
+ {
+ emit clicked(index);
+ }
+ QStyleOptionViewItem option = viewOptions();
+ if (m_pressedAlreadySelected)
+ {
+ option.state |= QStyle::State_Selected;
+ }
+ if ((model()->flags(index) & Qt::ItemIsEnabled) &&
+ style()->styleHint(QStyle::SH_ItemView_ActivateItemOnSingleClick, &option, this))
+ {
+ emit activated(index);
+ }
+ }
+}
+
+void GroupView::mouseDoubleClickEvent(QMouseEvent *event)
+{
+ QModelIndex index = indexAt(event->pos());
+ if (!index.isValid() || !(index.flags() & Qt::ItemIsEnabled) || (m_pressedIndex != index))
+ {
+ QMouseEvent me(QEvent::MouseButtonPress, event->localPos(), event->windowPos(),
+ event->screenPos(), event->button(), event->buttons(),
+ event->modifiers());
+ mousePressEvent(&me);
+ return;
+ }
+ // signal handlers may change the model
+ QPersistentModelIndex persistent = index;
+ emit doubleClicked(persistent);
+}
+
+void GroupView::paintEvent(QPaintEvent *event)
+{
+ executeDelayedItemsLayout();
+
+ QPainter painter(this->viewport());
+
+ QStyleOptionViewItemV4 option(viewOptions());
+ option.widget = this;
+
+ int wpWidth = viewport()->width();
+ option.rect.setWidth(wpWidth);
+ for (int i = 0; i < m_groups.size(); ++i)
+ {
+ VisualGroup *category = m_groups.at(i);
+ int y = category->verticalPosition();
+ y -= verticalOffset();
+ QRect backup = option.rect;
+ int height = category->totalHeight();
+ option.rect.setTop(y);
+ option.rect.setHeight(height);
+ option.rect.setLeft(m_leftMargin);
+ option.rect.setRight(wpWidth - m_rightMargin);
+ category->drawHeader(&painter, option);
+ y += category->totalHeight() + m_categoryMargin;
+ option.rect = backup;
+ }
+
+ for (int i = 0; i < model()->rowCount(); ++i)
+ {
+ const QModelIndex index = model()->index(i, 0);
+ if (isIndexHidden(index))
+ {
+ continue;
+ }
+ Qt::ItemFlags flags = index.flags();
+ option.rect = visualRect(index);
+ option.features |=
+ QStyleOptionViewItemV2::WrapText; // FIXME: what is the meaning of this anyway?
+ if (flags & Qt::ItemIsSelectable && selectionModel()->isSelected(index))
+ {
+ option.state |= selectionModel()->isSelected(index) ? QStyle::State_Selected
+ : QStyle::State_None;
+ }
+ else
+ {
+ option.state &= ~QStyle::State_Selected;
+ }
+ option.state |= (index == currentIndex()) ? QStyle::State_HasFocus : QStyle::State_None;
+ if (!(flags & Qt::ItemIsEnabled))
+ {
+ option.state &= ~QStyle::State_Enabled;
+ }
+ itemDelegate()->paint(&painter, option, index);
+ }
+
+ /*
+ * Drop indicators for manual reordering...
+ */
+#if 0
+ if (!m_lastDragPosition.isNull())
+ {
+ QPair<Group *, int> pair = rowDropPos(m_lastDragPosition);
+ Group *category = pair.first;
+ int row = pair.second;
+ if (category)
+ {
+ int internalRow = row - category->firstItemIndex;
+ QLine line;
+ if (internalRow >= category->numItems())
+ {
+ QRect toTheRightOfRect = visualRect(category->lastItem());
+ line = QLine(toTheRightOfRect.topRight(), toTheRightOfRect.bottomRight());
+ }
+ else
+ {
+ QRect toTheLeftOfRect = visualRect(model()->index(row, 0));
+ line = QLine(toTheLeftOfRect.topLeft(), toTheLeftOfRect.bottomLeft());
+ }
+ painter.save();
+ painter.setPen(QPen(Qt::black, 3));
+ painter.drawLine(line);
+ painter.restore();
+ }
+ }
+#endif
+}
+
+void GroupView::resizeEvent(QResizeEvent *event)
+{
+ int newItemsPerRow = calculateItemsPerRow();
+ if(newItemsPerRow != m_currentItemsPerRow)
+ {
+ m_currentCursorColumn = -1;
+ m_currentItemsPerRow = newItemsPerRow;
+ updateGeometries();
+ }
+}
+
+void GroupView::dragEnterEvent(QDragEnterEvent *event)
+{
+ if (!isDragEventAccepted(event))
+ {
+ return;
+ }
+ m_lastDragPosition = event->pos() + offset();
+ viewport()->update();
+ event->accept();
+}
+
+void GroupView::dragMoveEvent(QDragMoveEvent *event)
+{
+ if (!isDragEventAccepted(event))
+ {
+ return;
+ }
+ m_lastDragPosition = event->pos() + offset();
+ viewport()->update();
+ event->accept();
+}
+
+void GroupView::dragLeaveEvent(QDragLeaveEvent *event)
+{
+ m_lastDragPosition = QPoint();
+ viewport()->update();
+}
+
+void GroupView::dropEvent(QDropEvent *event)
+{
+ m_lastDragPosition = QPoint();
+
+ stopAutoScroll();
+ setState(NoState);
+
+ if (event->source() != this || !(event->possibleActions() & Qt::MoveAction))
+ {
+ return;
+ }
+
+ QPair<VisualGroup *, int> dropPos = rowDropPos(event->pos() + offset());
+ const VisualGroup *category = dropPos.first;
+ const int row = dropPos.second;
+
+ if (row == -1)
+ {
+ viewport()->update();
+ return;
+ }
+
+ const QString categoryText = category->text;
+ if (model()->dropMimeData(event->mimeData(), Qt::MoveAction, row, 0, QModelIndex()))
+ {
+ model()->setData(model()->index(row, 0), categoryText,
+ GroupViewRoles::GroupRole);
+ event->setDropAction(Qt::MoveAction);
+ event->accept();
+ }
+ updateGeometries();
+ viewport()->update();
+}
+
+void GroupView::startDrag(Qt::DropActions supportedActions)
+{
+ QModelIndexList indexes = selectionModel()->selectedIndexes();
+ if(indexes.count() == 0)
+ return;
+
+ QMimeData *data = model()->mimeData(indexes);
+ if (!data)
+ {
+ return;
+ }
+ QRect rect;
+ QPixmap pixmap = renderToPixmap(indexes, &rect);
+ //rect.translate(offset());
+ // rect.adjust(horizontalOffset(), verticalOffset(), 0, 0);
+ QDrag *drag = new QDrag(this);
+ drag->setPixmap(pixmap);
+ drag->setMimeData(data);
+ Qt::DropAction defaultDropAction = Qt::IgnoreAction;
+ if (this->defaultDropAction() != Qt::IgnoreAction &&
+ (supportedActions & this->defaultDropAction()))
+ {
+ defaultDropAction = this->defaultDropAction();
+ }
+ if (drag->exec(supportedActions, defaultDropAction) == Qt::MoveAction)
+ {
+ const QItemSelection selection = selectionModel()->selection();
+
+ for (auto it = selection.constBegin(); it != selection.constEnd(); ++it)
+ {
+ QModelIndex parent = (*it).parent();
+ if ((*it).left() != 0)
+ {
+ continue;
+ }
+ if ((*it).right() != (model()->columnCount(parent) - 1))
+ {
+ continue;
+ }
+ int count = (*it).bottom() - (*it).top() + 1;
+ model()->removeRows((*it).top(), count, parent);
+ }
+ }
+}
+
+QRect GroupView::visualRect(const QModelIndex &index) const
+{
+ return geometryRect(index).translated(-offset());
+}
+
+QRect GroupView::geometryRect(const QModelIndex &index) const
+{
+ if (!index.isValid() || isIndexHidden(index) || index.column() > 0)
+ {
+ return QRect();
+ }
+
+ int row = index.row();
+ if(geometryCache.contains(row))
+ {
+ return *geometryCache[row];
+ }
+
+ const VisualGroup *cat = category(index);
+ QPair<int, int> pos = cat->positionOf(index);
+ int x = pos.first;
+ // int y = pos.second;
+
+ QRect out;
+ out.setTop(cat->verticalPosition() + cat->headerHeight() + 5 + cat->rowTopOf(index));
+ out.setLeft(m_spacing + x * (itemWidth() + m_spacing));
+ out.setSize(itemDelegate()->sizeHint(viewOptions(), index));
+ geometryCache.insert(row, new QRect(out));
+ return out;
+}
+
+QModelIndex GroupView::indexAt(const QPoint &point) const
+{
+ for (int i = 0; i < model()->rowCount(); ++i)
+ {
+ QModelIndex index = model()->index(i, 0);
+ if (visualRect(index).contains(point))
+ {
+ return index;
+ }
+ }
+ return QModelIndex();
+}
+
+void GroupView::setSelection(const QRect &rect,
+ const QItemSelectionModel::SelectionFlags commands)
+{
+ for (int i = 0; i < model()->rowCount(); ++i)
+ {
+ QModelIndex index = model()->index(i, 0);
+ QRect itemRect = visualRect(index);
+ if (itemRect.intersects(rect))
+ {
+ selectionModel()->select(index, commands);
+ update(itemRect.translated(-offset()));
+ }
+ }
+}
+
+QPixmap GroupView::renderToPixmap(const QModelIndexList &indices, QRect *r) const
+{
+ Q_ASSERT(r);
+ auto paintPairs = draggablePaintPairs(indices, r);
+ if (paintPairs.isEmpty())
+ {
+ return QPixmap();
+ }
+ QPixmap pixmap(r->size());
+ pixmap.fill(Qt::transparent);
+ QPainter painter(&pixmap);
+ QStyleOptionViewItem option = viewOptions();
+ option.state |= QStyle::State_Selected;
+ for (int j = 0; j < paintPairs.count(); ++j)
+ {
+ option.rect = paintPairs.at(j).first.translated(-r->topLeft());
+ const QModelIndex &current = paintPairs.at(j).second;
+ itemDelegate()->paint(&painter, option, current);
+ }
+ return pixmap;
+}
+
+QList<QPair<QRect, QModelIndex>> GroupView::draggablePaintPairs(const QModelIndexList &indices,
+ QRect *r) const
+{
+ Q_ASSERT(r);
+ QRect &rect = *r;
+ QList<QPair<QRect, QModelIndex>> ret;
+ for (int i = 0; i < indices.count(); ++i)
+ {
+ const QModelIndex &index = indices.at(i);
+ const QRect current = geometryRect(index);
+ ret += qMakePair(current, index);
+ rect |= current;
+ }
+ return ret;
+}
+
+bool GroupView::isDragEventAccepted(QDropEvent *event)
+{
+ return false;
+}
+
+QPair<VisualGroup *, int> GroupView::rowDropPos(const QPoint &pos)
+{
+ return qMakePair<VisualGroup*, int>(nullptr, -1);
+ // FIXME: PIXIE DUST.
+ /*
+ // check that we aren't on a category header and calculate which category we're in
+ VisualGroup *category = 0;
+ {
+ int y = 0;
+ for (auto cat : m_groups)
+ {
+ if (pos.y() > y && pos.y() < (y + cat->headerHeight()))
+ {
+ return qMakePair<VisualGroup*, int>(nullptr, -1);
+ }
+ y += cat->totalHeight() + m_categoryMargin;
+ if (pos.y() < y)
+ {
+ category = cat;
+ break;
+ }
+ }
+ if (category == 0)
+ {
+ return qMakePair<VisualGroup*, int>(nullptr, -1);
+ }
+ }
+
+ QList<QModelIndex> indices = category->items();
+
+ // calculate the internal column
+ int internalColumn = -1;
+ {
+ const int itemWidth = this->itemWidth();
+ if (pos.x() >= (itemWidth * itemsPerRow()))
+ {
+ internalColumn = itemsPerRow();
+ }
+ else
+ {
+ for (int i = 0, c = 0; i < contentWidth(); i += itemWidth + 10 , ++c)
+ {
+ if (pos.x() > (i - itemWidth / 2) && pos.x() <= (i + itemWidth / 2))
+ {
+ internalColumn = c;
+ break;
+ }
+ }
+ }
+ if (internalColumn == -1)
+ {
+ return qMakePair<VisualGroup*, int>(nullptr, -1);
+ }
+ }
+
+ // calculate the internal row
+ int internalRow = -1;
+ {
+ // FIXME rework the drag and drop code
+ const int top = category->verticalPosition();
+ for (int r = 0, h = top; r < category->numRows();
+ h += itemHeightForCategoryRow(category, r), ++r)
+ {
+ if (pos.y() > h && pos.y() < (h + itemHeightForCategoryRow(category, r)))
+ {
+ internalRow = r;
+ break;
+ }
+ }
+ if (internalRow == -1)
+ {
+ return qMakePair<VisualGroup*, int>(nullptr, -1);
+ }
+ // this happens if we're in the margin between a one category and another
+ // categories header
+ if (internalRow > (indices.size() / itemsPerRow()))
+ {
+ return qMakePair<VisualGroup*, int>(nullptr, -1);
+ }
+ }
+
+ // flaten the internalColumn/internalRow to one row
+ int categoryRow = internalRow * itemsPerRow() + internalColumn;
+
+ // this is used if we're past the last item
+ if (categoryRow >= indices.size())
+ {
+ return qMakePair(category, indices.last().row() + 1);
+ }
+
+ return qMakePair(category, indices.at(categoryRow).row());
+ */
+}
+
+QPoint GroupView::offset() const
+{
+ return QPoint(horizontalOffset(), verticalOffset());
+}
+
+QRegion GroupView::visualRegionForSelection(const QItemSelection &selection) const
+{
+ QRegion region;
+ for (auto &range : selection)
+ {
+ int start_row = range.top();
+ int end_row = range.bottom();
+ for (int row = start_row; row <= end_row; ++row)
+ {
+ int start_column = range.left();
+ int end_column = range.right();
+ for (int column = start_column; column <= end_column; ++column)
+ {
+ QModelIndex index = model()->index(row, column, rootIndex());
+ region += visualRect(index); // OK
+ }
+ }
+ }
+ return region;
+}
+
+QModelIndex GroupView::moveCursor(QAbstractItemView::CursorAction cursorAction,
+ Qt::KeyboardModifiers modifiers)
+{
+ auto current = currentIndex();
+ if(!current.isValid())
+ {
+ return current;
+ }
+ auto cat = category(current);
+ int group_index = m_groups.indexOf(cat);
+ if(group_index < 0)
+ return current;
+
+ auto real_group = m_groups[group_index];
+ int beginning_row = 0;
+ for(auto group: m_groups)
+ {
+ if(group == real_group)
+ break;
+ beginning_row += group->numRows();
+ }
+
+ QPair<int, int> pos = cat->positionOf(current);
+ int column = pos.first;
+ int row = pos.second;
+ if(m_currentCursorColumn < 0)
+ {
+ m_currentCursorColumn = column;
+ }
+ switch(cursorAction)
+ {
+ case MoveUp:
+ {
+ if(row == 0)
+ {
+ int prevgroupindex = group_index-1;
+ while(prevgroupindex >= 0)
+ {
+ auto prevgroup = m_groups[prevgroupindex];
+ if(prevgroup->collapsed)
+ {
+ prevgroupindex--;
+ continue;
+ }
+ int newRow = prevgroup->numRows() - 1;
+ int newRowSize = prevgroup->rows[newRow].size();
+ int newColumn = m_currentCursorColumn;
+ if (m_currentCursorColumn >= newRowSize)
+ {
+ newColumn = newRowSize - 1;
+ }
+ return prevgroup->rows[newRow][newColumn];
+ }
+ }
+ else
+ {
+ int newRow = row - 1;
+ int newRowSize = cat->rows[newRow].size();
+ int newColumn = m_currentCursorColumn;
+ if (m_currentCursorColumn >= newRowSize)
+ {
+ newColumn = newRowSize - 1;
+ }
+ return cat->rows[newRow][newColumn];
+ }
+ return current;
+ }
+ case MoveDown:
+ {
+ if(row == cat->rows.size() - 1)
+ {
+ int nextgroupindex = group_index+1;
+ while (nextgroupindex < m_groups.size())
+ {
+ auto nextgroup = m_groups[nextgroupindex];
+ if(nextgroup->collapsed)
+ {
+ nextgroupindex++;
+ continue;
+ }
+ int newRowSize = nextgroup->rows[0].size();
+ int newColumn = m_currentCursorColumn;
+ if (m_currentCursorColumn >= newRowSize)
+ {
+ newColumn = newRowSize - 1;
+ }
+ return nextgroup->rows[0][newColumn];
+ }
+ }
+ else
+ {
+ int newRow = row + 1;
+ int newRowSize = cat->rows[newRow].size();
+ int newColumn = m_currentCursorColumn;
+ if (m_currentCursorColumn >= newRowSize)
+ {
+ newColumn = newRowSize - 1;
+ }
+ return cat->rows[newRow][newColumn];
+ }
+ return current;
+ }
+ case MoveLeft:
+ {
+ if(column > 0)
+ {
+ m_currentCursorColumn = column - 1;
+ return cat->rows[row][column - 1];
+ }
+ // TODO: moving to previous line
+ return current;
+ }
+ case MoveRight:
+ {
+ if(column < cat->rows[row].size() - 1)
+ {
+ m_currentCursorColumn = column + 1;
+ return cat->rows[row][column + 1];
+ }
+ // TODO: moving to next line
+ return current;
+ }
+ case MoveHome:
+ {
+ m_currentCursorColumn = 0;
+ return cat->rows[row][0];
+ }
+ case MoveEnd:
+ {
+ auto last = cat->rows[row].size() - 1;
+ m_currentCursorColumn = last;
+ return cat->rows[row][last];
+ }
+ default:
+ break;
+ }
+ return current;
+}
+
+int GroupView::horizontalOffset() const
+{
+ return horizontalScrollBar()->value();
+}
+
+int GroupView::verticalOffset() const
+{
+ return verticalScrollBar()->value();
+}
+
+void GroupView::scrollContentsBy(int dx, int dy)
+{
+ scrollDirtyRegion(dx, dy);
+ viewport()->scroll(dx, dy);
+}
+
+void GroupView::scrollTo(const QModelIndex &index, ScrollHint hint)
+{
+ if (!index.isValid())
+ return;
+
+ const QRect rect = visualRect(index);
+ if (hint == EnsureVisible && viewport()->rect().contains(rect))
+ {
+ viewport()->update(rect);
+ return;
+ }
+
+ verticalScrollBar()->setValue(verticalScrollToValue(index, rect, hint));
+}
+
+int GroupView::verticalScrollToValue(const QModelIndex &index, const QRect &rect,
+ QListView::ScrollHint hint) const
+{
+ const QRect area = viewport()->rect();
+ const bool above = (hint == QListView::EnsureVisible && rect.top() < area.top());
+ const bool below = (hint == QListView::EnsureVisible && rect.bottom() > area.bottom());
+
+ int verticalValue = verticalScrollBar()->value();
+ QRect adjusted = rect.adjusted(-spacing(), -spacing(), spacing(), spacing());
+ if (hint == QListView::PositionAtTop || above)
+ verticalValue += adjusted.top();
+ else if (hint == QListView::PositionAtBottom || below)
+ verticalValue += qMin(adjusted.top(), adjusted.bottom() - area.height() + 1);
+ else if (hint == QListView::PositionAtCenter)
+ verticalValue += adjusted.top() - ((area.height() - adjusted.height()) / 2);
+ return verticalValue;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 15:04:27 +0000