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Diffstat (limited to 'launcher/instanceview/InstanceView.cpp')
| -rw-r--r-- | launcher/instanceview/InstanceView.cpp | 1010 |
1 files changed, 0 insertions, 1010 deletions
diff --git a/launcher/instanceview/InstanceView.cpp b/launcher/instanceview/InstanceView.cpp deleted file mode 100644 index 1f044866..00000000 --- a/launcher/instanceview/InstanceView.cpp +++ /dev/null @@ -1,1010 +0,0 @@ -/* Copyright 2013-2021 MultiMC Contributors - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "InstanceView.h" - -#include <QPainter> -#include <QApplication> -#include <QtMath> -#include <QMouseEvent> -#include <QListView> -#include <QPersistentModelIndex> -#include <QDrag> -#include <QMimeData> -#include <QCache> -#include <QScrollBar> -#include <QAccessible> - -#include "VisualGroup.h" -#include <QDebug> - -#include <Application.h> -#include <InstanceList.h> - - -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; -} - -InstanceView::InstanceView(QWidget *parent) - : QAbstractItemView(parent) -{ - setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); - setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); - setAcceptDrops(true); - setAutoScroll(true); -} - -InstanceView::~InstanceView() -{ - qDeleteAll(m_groups); - m_groups.clear(); -} - -void InstanceView::setModel(QAbstractItemModel *model) -{ - QAbstractItemView::setModel(model); - connect(model, &QAbstractItemModel::modelReset, this, &InstanceView::modelReset); - connect(model, &QAbstractItemModel::rowsRemoved, this, &InstanceView::rowsRemoved); -} - -void InstanceView::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles) -{ - scheduleDelayedItemsLayout(); -} -void InstanceView::rowsInserted(const QModelIndex &parent, int start, int end) -{ - scheduleDelayedItemsLayout(); -} - -void InstanceView::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) -{ - scheduleDelayedItemsLayout(); -} - -void InstanceView::modelReset() -{ - scheduleDelayedItemsLayout(); -} - -void InstanceView::rowsRemoved() -{ - scheduleDelayedItemsLayout(); -} - -void InstanceView::currentChanged(const QModelIndex& current, const QModelIndex& previous) -{ - QAbstractItemView::currentChanged(current, previous); - // TODO: for accessibility support, implement+register a factory, steal QAccessibleTable from Qt and return an instance of it for InstanceView. -#ifndef QT_NO_ACCESSIBILITY - if (QAccessible::isActive() && current.isValid()) { - QAccessibleEvent event(this, QAccessible::Focus); - event.setChild(current.row()); - QAccessible::updateAccessibility(&event); - } -#endif /* !QT_NO_ACCESSIBILITY */ -} - - -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 InstanceView::updateScrollbar() -{ - int previousScroll = verticalScrollBar()->value(); - 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())); -} - -void InstanceView::updateGeometries() -{ - geometryCache.clear(); - - QMap<LocaleString, VisualGroup *> cats; - - for (int i = 0; i < model()->rowCount(); ++i) - { - const QString groupName = model()->index(i, 0).data(InstanceViewRoles::GroupRole).toString(); - if (!cats.contains(groupName)) - { - VisualGroup *old = this->category(groupName); - if (old) - { - auto cat = new VisualGroup(old); - cats.insert(groupName, cat); - cat->update(); - } - else - { - auto cat = new VisualGroup(groupName, this); - if(fVisibility) { - cat->collapsed = fVisibility(groupName); - } - cats.insert(groupName, cat); - cat->update(); - } - } - } - - qDeleteAll(m_groups); - m_groups = cats.values(); - updateScrollbar(); - viewport()->update(); -} - -bool InstanceView::isIndexHidden(const QModelIndex &index) const -{ - VisualGroup *cat = category(index); - if (cat) - { - return cat->collapsed; - } - else - { - return false; - } -} - -VisualGroup *InstanceView::category(const QModelIndex &index) const -{ - return category(index.data(InstanceViewRoles::GroupRole).toString()); -} - -VisualGroup *InstanceView::category(const QString &cat) const -{ - for (auto group : m_groups) - { - if (group->text == cat) - { - return group; - } - } - return nullptr; -} - -VisualGroup *InstanceView::categoryAt(const QPoint &pos, VisualGroup::HitResults & result) const -{ - for (auto group : m_groups) - { - result = group->hitScan(pos); - if(result != VisualGroup::NoHit) - { - return group; - } - } - result = VisualGroup::NoHit; - return nullptr; -} - -QString InstanceView::groupNameAt(const QPoint &point) -{ - executeDelayedItemsLayout(); - - VisualGroup::HitResults hitresult; - auto group = categoryAt(point + offset(), hitresult); - if(group && (hitresult & (VisualGroup::HeaderHit | VisualGroup::BodyHit))) - { - return group->text; - } - return QString(); -} - -int InstanceView::calculateItemsPerRow() const -{ - return qFloor((qreal)(contentWidth()) / (qreal)(itemWidth() + m_spacing)); -} - -int InstanceView::contentWidth() const -{ - return width() - m_leftMargin - m_rightMargin; -} - -int InstanceView::itemWidth() const -{ - return m_itemWidth; -} - -void InstanceView::mousePressEvent(QMouseEvent *event) -{ - executeDelayedItemsLayout(); - - 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; - - VisualGroup::HitResults hitresult; - m_pressedCategory = categoryAt(geometryPos, hitresult); - if (m_pressedCategory && hitresult & VisualGroup::CheckboxHit) - { - 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 InstanceView::mouseMoveEvent(QMouseEvent *event) -{ - executeDelayedItemsLayout(); - - 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 InstanceView::mouseReleaseEvent(QMouseEvent *event) -{ - executeDelayedItemsLayout(); - - QPoint visualPos = event->pos(); - QPoint geometryPos = event->pos() + offset(); - QPersistentModelIndex index = indexAt(visualPos); - - VisualGroup::HitResults hitresult; - - bool click = (index == m_pressedIndex && index.isValid()) || - (m_pressedCategory && m_pressedCategory == categoryAt(geometryPos, hitresult)); - - if (click && m_pressedCategory) - { - if (state() == ExpandingState) - { - m_pressedCategory->collapsed = false; - emit groupStateChanged(m_pressedCategory->text, false); - - updateGeometries(); - viewport()->update(); - event->accept(); - m_pressedCategory = nullptr; - setState(NoState); - return; - } - else if (state() == CollapsingState) - { - m_pressedCategory->collapsed = true; - emit groupStateChanged(m_pressedCategory->text, true); - - updateGeometries(); - viewport()->update(); - event->accept(); - m_pressedCategory = nullptr; - setState(NoState); - 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 InstanceView::mouseDoubleClickEvent(QMouseEvent *event) -{ - executeDelayedItemsLayout(); - - 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); - - QStyleOptionViewItem option = viewOptions(); - if ((model()->flags(index) & Qt::ItemIsEnabled) && !style()->styleHint(QStyle::SH_ItemView_ActivateItemOnSingleClick, &option, this)) - { - emit activated(index); - } -} - -void InstanceView::paintEvent(QPaintEvent *event) -{ - executeDelayedItemsLayout(); - - QPainter painter(this->viewport()); - - QStyleOptionViewItem 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 |= QStyleOptionViewItem::WrapText; - 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 InstanceView::resizeEvent(QResizeEvent *event) -{ - int newItemsPerRow = calculateItemsPerRow(); - if(newItemsPerRow != m_currentItemsPerRow) - { - m_currentCursorColumn = -1; - m_currentItemsPerRow = newItemsPerRow; - updateGeometries(); - } - else - { - updateScrollbar(); - } -} - -void InstanceView::dragEnterEvent(QDragEnterEvent *event) -{ - executeDelayedItemsLayout(); - - if (!isDragEventAccepted(event)) - { - return; - } - m_lastDragPosition = event->pos() + offset(); - viewport()->update(); - event->accept(); -} - -void InstanceView::dragMoveEvent(QDragMoveEvent *event) -{ - executeDelayedItemsLayout(); - - if (!isDragEventAccepted(event)) - { - return; - } - m_lastDragPosition = event->pos() + offset(); - viewport()->update(); - event->accept(); -} - -void InstanceView::dragLeaveEvent(QDragLeaveEvent *event) -{ - executeDelayedItemsLayout(); - - m_lastDragPosition = QPoint(); - viewport()->update(); -} - -void InstanceView::dropEvent(QDropEvent *event) -{ - executeDelayedItemsLayout(); - - m_lastDragPosition = QPoint(); - - stopAutoScroll(); - setState(NoState); - - auto mimedata = event->mimeData(); - - if (event->source() == this) - { - if(event->possibleActions() & Qt::MoveAction) - { - QPair<VisualGroup *, VisualGroup::HitResults> dropPos = rowDropPos(event->pos()); - const VisualGroup *group = dropPos.first; - auto hitresult = dropPos.second; - - if (hitresult == VisualGroup::HitResult::NoHit) - { - viewport()->update(); - return; - } - auto instanceId = QString::fromUtf8(mimedata->data("application/x-instanceid")); - auto instanceList = APPLICATION->instances().get(); - instanceList->setInstanceGroup(instanceId, group->text); - event->setDropAction(Qt::MoveAction); - event->accept(); - - updateGeometries(); - viewport()->update(); - } - return; - } - - // check if the action is supported - if (!mimedata) - { - return; - } - - // files dropped from outside? - if (mimedata->hasUrls()) - { - auto urls = mimedata->urls(); - event->accept(); - emit droppedURLs(urls); - } -} - -void InstanceView::startDrag(Qt::DropActions supportedActions) -{ - executeDelayedItemsLayout(); - - QModelIndexList indexes = selectionModel()->selectedIndexes(); - if(indexes.count() == 0) - return; - - QMimeData *data = model()->mimeData(indexes); - if (!data) - { - return; - } - QRect rect; - QPixmap pixmap = renderToPixmap(indexes, &rect); - QDrag *drag = new QDrag(this); - drag->setPixmap(pixmap); - drag->setMimeData(data); - drag->setHotSpot(m_pressedPosition - rect.topLeft()); - Qt::DropAction defaultDropAction = Qt::IgnoreAction; - if (this->defaultDropAction() != Qt::IgnoreAction && (supportedActions & this->defaultDropAction())) - { - defaultDropAction = this->defaultDropAction(); - } - /*auto action = */ - drag->exec(supportedActions, defaultDropAction); -} - -QRect InstanceView::visualRect(const QModelIndex &index) const -{ - const_cast<InstanceView*>(this)->executeDelayedItemsLayout(); - - return geometryRect(index).translated(-offset()); -} - -QRect InstanceView::geometryRect(const QModelIndex &index) const -{ - const_cast<InstanceView*>(this)->executeDelayedItemsLayout(); - - 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 InstanceView::indexAt(const QPoint &point) const -{ - const_cast<InstanceView*>(this)->executeDelayedItemsLayout(); - - for (int i = 0; i < model()->rowCount(); ++i) - { - QModelIndex index = model()->index(i, 0); - if (visualRect(index).contains(point)) - { - return index; - } - } - return QModelIndex(); -} - -void InstanceView::setSelection(const QRect &rect, const QItemSelectionModel::SelectionFlags commands) -{ - executeDelayedItemsLayout(); - - 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 InstanceView::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 ¤t = paintPairs.at(j).second; - itemDelegate()->paint(&painter, option, current); - } - return pixmap; -} - -QList<QPair<QRect, QModelIndex>> InstanceView::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 InstanceView::isDragEventAccepted(QDropEvent *event) -{ - return true; -} - -QPair<VisualGroup *, VisualGroup::HitResults> InstanceView::rowDropPos(const QPoint &pos) -{ - VisualGroup::HitResults hitresult; - auto group = categoryAt(pos + offset(), hitresult); - return qMakePair<VisualGroup*, int>(group, hitresult); -} - -QPoint InstanceView::offset() const -{ - return QPoint(horizontalOffset(), verticalOffset()); -} - -QRegion InstanceView::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 InstanceView::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 InstanceView::horizontalOffset() const -{ - return horizontalScrollBar()->value(); -} - -int InstanceView::verticalOffset() const -{ - return verticalScrollBar()->value(); -} - -void InstanceView::scrollContentsBy(int dx, int dy) -{ - scrollDirtyRegion(dx, dy); - viewport()->scroll(dx, dy); -} - -void InstanceView::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 InstanceView::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; -} |