From db877ba121ff87a4e029daf8555d85dfef45993a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= Date: Mon, 9 Feb 2015 01:51:14 +0100 Subject: NOISSUE move everything. --- application/groupview/GroupView.cpp | 1003 +++++++++++++++++++++++++++ application/groupview/GroupView.h | 125 ++++ application/groupview/GroupedProxyModel.cpp | 42 ++ application/groupview/GroupedProxyModel.h | 15 + application/groupview/InstanceDelegate.cpp | 362 ++++++++++ application/groupview/InstanceDelegate.h | 35 + application/groupview/VisualGroup.cpp | 301 ++++++++ application/groupview/VisualGroup.h | 91 +++ 8 files changed, 1974 insertions(+) create mode 100644 application/groupview/GroupView.cpp create mode 100644 application/groupview/GroupView.h create mode 100644 application/groupview/GroupedProxyModel.cpp create mode 100644 application/groupview/GroupedProxyModel.h create mode 100644 application/groupview/InstanceDelegate.cpp create mode 100644 application/groupview/InstanceDelegate.h create mode 100644 application/groupview/VisualGroup.cpp create mode 100644 application/groupview/VisualGroup.h (limited to 'application/groupview') 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "VisualGroup.h" +#include + +template bool listsIntersect(const QList &l1, const QList 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 &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 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 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 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 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 ¤t = paintPairs.at(j).second; + itemDelegate()->paint(&painter, option, current); + } + return pixmap; +} + +QList> GroupView::draggablePaintPairs(const QModelIndexList &indices, + QRect *r) const +{ + Q_ASSERT(r); + QRect &rect = *r; + QList> 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 GroupView::rowDropPos(const QPoint &pos) +{ + return qMakePair(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(nullptr, -1); + } + y += cat->totalHeight() + m_categoryMargin; + if (pos.y() < y) + { + category = cat; + break; + } + } + if (category == 0) + { + return qMakePair(nullptr, -1); + } + } + + QList 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(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(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(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 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; +} diff --git a/application/groupview/GroupView.h b/application/groupview/GroupView.h new file mode 100644 index 00000000..93e45ed7 --- /dev/null +++ b/application/groupview/GroupView.h @@ -0,0 +1,125 @@ +#pragma once + +#include +#include +#include +#include + +struct GroupViewRoles +{ + enum + { + GroupRole = Qt::UserRole, + ProgressValueRole, + ProgressMaximumRole + }; +}; + +struct VisualGroup; + +class GroupView : public QAbstractItemView +{ + Q_OBJECT + +public: + GroupView(QWidget *parent = 0); + ~GroupView(); + + void setModel(QAbstractItemModel *model) override; + + /// return geometry rectangle occupied by the specified model item + QRect geometryRect(const QModelIndex &index) const; + /// return visual rectangle occupied by the specified model item + virtual QRect visualRect(const QModelIndex &index) const override; + /// get the model index at the specified visual point + virtual QModelIndex indexAt(const QPoint &point) const override; + void setSelection(const QRect &rect, + const QItemSelectionModel::SelectionFlags commands) override; + + virtual int horizontalOffset() const override; + virtual int verticalOffset() const override; + virtual void scrollContentsBy(int dx, int dy) override; + virtual void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) override; + + virtual QModelIndex moveCursor(CursorAction cursorAction, + Qt::KeyboardModifiers modifiers) override; + + virtual QRegion visualRegionForSelection(const QItemSelection &selection) const override; + + int spacing() const + { + return m_spacing; + }; +protected +slots: + virtual void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, + const QVector &roles) override; + virtual void rowsInserted(const QModelIndex &parent, int start, int end) override; + virtual void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) override; + virtual void updateGeometries() override; + void modelReset(); + +protected: + virtual bool isIndexHidden(const QModelIndex &index) const override; + void mousePressEvent(QMouseEvent *event) override; + void mouseMoveEvent(QMouseEvent *event) override; + void mouseReleaseEvent(QMouseEvent *event) override; + void mouseDoubleClickEvent(QMouseEvent *event) override; + void paintEvent(QPaintEvent *event) override; + void resizeEvent(QResizeEvent *event) override; + + void dragEnterEvent(QDragEnterEvent *event) override; + void dragMoveEvent(QDragMoveEvent *event) override; + void dragLeaveEvent(QDragLeaveEvent *event) override; + void dropEvent(QDropEvent *event) override; + + void startDrag(Qt::DropActions supportedActions) override; + +private: + friend struct VisualGroup; + QList m_groups; + + // geometry + int m_leftMargin = 5; + int m_rightMargin = 5; + int m_bottomMargin = 5; + int m_categoryMargin = 5; + int m_spacing = 5; + int m_itemWidth = 100; + int m_currentItemsPerRow = -1; + int m_currentCursorColumn= -1; + mutable QCache geometryCache; + + // point where the currently active mouse action started in geometry coordinates + QPoint m_pressedPosition; + QPersistentModelIndex m_pressedIndex; + bool m_pressedAlreadySelected; + VisualGroup *m_pressedCategory; + QItemSelectionModel::SelectionFlag m_ctrlDragSelectionFlag; + QPoint m_lastDragPosition; + + VisualGroup *category(const QModelIndex &index) const; + VisualGroup *category(const QString &cat) const; + VisualGroup *categoryAt(const QPoint &pos) const; + + int itemsPerRow() const + { + return m_currentItemsPerRow; + }; + int contentWidth() const; + +private: /* methods */ + int itemWidth() const; + int calculateItemsPerRow() const; + int verticalScrollToValue(const QModelIndex &index, const QRect &rect, + QListView::ScrollHint hint) const; + QPixmap renderToPixmap(const QModelIndexList &indices, QRect *r) const; + QList> draggablePaintPairs(const QModelIndexList &indices, + QRect *r) const; + + bool isDragEventAccepted(QDropEvent *event); + + QPair rowDropPos(const QPoint &pos); + + QPoint offset() const; +}; diff --git a/application/groupview/GroupedProxyModel.cpp b/application/groupview/GroupedProxyModel.cpp new file mode 100644 index 00000000..a45c5ae9 --- /dev/null +++ b/application/groupview/GroupedProxyModel.cpp @@ -0,0 +1,42 @@ +#include "GroupedProxyModel.h" + +#include "GroupView.h" +#include + +GroupedProxyModel::GroupedProxyModel(QObject *parent) : QSortFilterProxyModel(parent) +{ +} + +bool GroupedProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const +{ + const QString leftCategory = left.data(GroupViewRoles::GroupRole).toString(); + const QString rightCategory = right.data(GroupViewRoles::GroupRole).toString(); + if (leftCategory == rightCategory) + { + return subSortLessThan(left, right); + } + else + { + // FIXME: real group sorting happens in GroupView::updateGeometries(), see LocaleString + auto result = leftCategory.localeAwareCompare(rightCategory); + if(result < 0) + { + qDebug() << leftCategory << "<" << rightCategory; + } + if(result == 0) + { + qDebug() << leftCategory << "=" << rightCategory; + return subSortLessThan(left, right); + } + if(result > 0) + { + qDebug() << leftCategory << ">" << rightCategory; + } + return result < 0; + } +} + +bool GroupedProxyModel::subSortLessThan(const QModelIndex &left, const QModelIndex &right) const +{ + return left.row() < right.row(); +} diff --git a/application/groupview/GroupedProxyModel.h b/application/groupview/GroupedProxyModel.h new file mode 100644 index 00000000..12edee0f --- /dev/null +++ b/application/groupview/GroupedProxyModel.h @@ -0,0 +1,15 @@ +#pragma once + +#include + +class GroupedProxyModel : public QSortFilterProxyModel +{ + Q_OBJECT + +public: + GroupedProxyModel(QObject *parent = 0); + +protected: + virtual bool lessThan(const QModelIndex &left, const QModelIndex &right) const override; + virtual bool subSortLessThan(const QModelIndex &left, const QModelIndex &right) const; +}; diff --git a/application/groupview/InstanceDelegate.cpp b/application/groupview/InstanceDelegate.cpp new file mode 100644 index 00000000..b9ad353c --- /dev/null +++ b/application/groupview/InstanceDelegate.cpp @@ -0,0 +1,362 @@ +/* Copyright 2013-2015 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 "InstanceDelegate.h" +#include +#include +#include +#include +#include + +#include "GroupView.h" +#include "BaseInstance.h" +#include "InstanceList.h" + +QCache ListViewDelegate::m_pixmapCache; + +// Origin: Qt +static void viewItemTextLayout(QTextLayout &textLayout, int lineWidth, qreal &height, + qreal &widthUsed) +{ + height = 0; + widthUsed = 0; + textLayout.beginLayout(); + QString str = textLayout.text(); + while (true) + { + QTextLine line = textLayout.createLine(); + if (!line.isValid()) + break; + if (line.textLength() == 0) + break; + line.setLineWidth(lineWidth); + line.setPosition(QPointF(0, height)); + height += line.height(); + widthUsed = qMax(widthUsed, line.naturalTextWidth()); + } + textLayout.endLayout(); +} + +ListViewDelegate::ListViewDelegate(QObject *parent) : QStyledItemDelegate(parent) +{ +} + +void drawSelectionRect(QPainter *painter, const QStyleOptionViewItemV4 &option, + const QRect &rect) +{ + if ((option.state & QStyle::State_Selected)) + painter->fillRect(rect, option.palette.brush(QPalette::Highlight)); + else + { + QColor backgroundColor = option.palette.color(QPalette::Background); + backgroundColor.setAlpha(160); + painter->fillRect(rect, QBrush(backgroundColor)); + } +} + +void drawFocusRect(QPainter *painter, const QStyleOptionViewItemV4 &option, const QRect &rect) +{ + if (!(option.state & QStyle::State_HasFocus)) + return; + QStyleOptionFocusRect opt; + opt.direction = option.direction; + opt.fontMetrics = option.fontMetrics; + opt.palette = option.palette; + opt.rect = rect; + // opt.state = option.state | QStyle::State_KeyboardFocusChange | + // QStyle::State_Item; + auto col = option.state & QStyle::State_Selected ? QPalette::Highlight : QPalette::Base; + opt.backgroundColor = option.palette.color(col); + // Apparently some widget styles expect this hint to not be set + painter->setRenderHint(QPainter::Antialiasing, false); + + QStyle *style = option.widget ? option.widget->style() : QApplication::style(); + + style->drawPrimitive(QStyle::PE_FrameFocusRect, &opt, painter, option.widget); + + painter->setRenderHint(QPainter::Antialiasing); +} + +// TODO this can be made a lot prettier +void drawProgressOverlay(QPainter *painter, const QStyleOptionViewItemV4 &option, + const int value, const int maximum) +{ + if (maximum == 0 || value == maximum) + { + return; + } + + painter->save(); + + qreal percent = (qreal)value / (qreal)maximum; + QColor color = option.palette.color(QPalette::Dark); + color.setAlphaF(0.70f); + painter->setBrush(color); + painter->setPen(QPen(QBrush(), 0)); + painter->drawPie(option.rect, 90 * 16, -percent * 360 * 16); + + painter->restore(); +} + +void drawBadges(QPainter *painter, const QStyleOptionViewItemV4 &option, BaseInstance *instance) +{ + QList pixmaps; + const BaseInstance::InstanceFlags flags = instance->flags(); + if (flags & BaseInstance::VersionBrokenFlag) + { + pixmaps.append("broken"); + } + if (flags & BaseInstance::UpdateAvailable) + { + pixmaps.append("updateavailable"); + } + + // begin easter eggs + if (instance->name().contains("btw", Qt::CaseInsensitive) || + instance->name().contains("better then wolves", Qt::CaseInsensitive) || + instance->name().contains("better than wolves", Qt::CaseInsensitive)) + { + pixmaps.append("herobrine"); + } + if (instance->name().contains("direwolf", Qt::CaseInsensitive)) + { + pixmaps.append("enderman"); + } + if (instance->name().contains("kitten", Qt::CaseInsensitive)) + { + pixmaps.append("kitten"); + } + if (instance->name().contains("derp", Qt::CaseInsensitive)) + { + pixmaps.append("derp"); + } + // end easter eggs + + static const int itemSide = 24; + static const int spacing = 1; + const int itemsPerRow = qMax(1, qFloor(double(option.rect.width() + spacing) / double(itemSide + spacing))); + const int rows = qCeil((double)pixmaps.size() / (double)itemsPerRow); + QListIterator it(pixmaps); + painter->translate(option.rect.topLeft()); + for (int y = 0; y < rows; ++y) + { + for (int x = 0; x < itemsPerRow; ++x) + { + if (!it.hasNext()) + { + return; + } + const QPixmap pixmap = ListViewDelegate::requestBadgePixmap(it.next()).scaled( + itemSide, itemSide, Qt::KeepAspectRatio, Qt::FastTransformation); + painter->drawPixmap(option.rect.width() - x * itemSide + qMax(x - 1, 0) * spacing - itemSide, + y * itemSide + qMax(y - 1, 0) * spacing, itemSide, itemSide, + pixmap); + } + } + painter->translate(-option.rect.topLeft()); +} + +static QSize viewItemTextSize(const QStyleOptionViewItemV4 *option) +{ + QStyle *style = option->widget ? option->widget->style() : QApplication::style(); + QTextOption textOption; + textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); + QTextLayout textLayout; + textLayout.setTextOption(textOption); + textLayout.setFont(option->font); + textLayout.setText(option->text); + const int textMargin = + style->pixelMetric(QStyle::PM_FocusFrameHMargin, option, option->widget) + 1; + QRect bounds(0, 0, 100 - 2 * textMargin, 600); + qreal height = 0, widthUsed = 0; + viewItemTextLayout(textLayout, bounds.width(), height, widthUsed); + const QSize size(qCeil(widthUsed), qCeil(height)); + return QSize(size.width() + 2 * textMargin, size.height()); +} + +void ListViewDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, + const QModelIndex &index) const +{ + QStyleOptionViewItemV4 opt = option; + initStyleOption(&opt, index); + painter->save(); + painter->setClipRect(opt.rect); + + opt.features |= QStyleOptionViewItem::WrapText; + opt.text = index.data().toString(); + opt.textElideMode = Qt::ElideRight; + opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter; + + QStyle *style = opt.widget ? opt.widget->style() : QApplication::style(); + + // const int iconSize = style->pixelMetric(QStyle::PM_IconViewIconSize); + const int iconSize = 48; + QRect iconbox = opt.rect; + const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, opt.widget) + 1; + QRect textRect = opt.rect; + QRect textHighlightRect = textRect; + // clip the decoration on top, remove width padding + textRect.adjust(textMargin, iconSize + textMargin + 5, -textMargin, 0); + + textHighlightRect.adjust(0, iconSize + 5, 0, 0); + + // draw background + { + // FIXME: unused + // QSize textSize = viewItemTextSize ( &opt ); + QPalette::ColorGroup cg; + QStyleOptionViewItemV4 opt2(opt); + + if ((opt.widget && opt.widget->isEnabled()) || (opt.state & QStyle::State_Enabled)) + { + if (!(opt.state & QStyle::State_Active)) + cg = QPalette::Inactive; + else + cg = QPalette::Normal; + } + else + { + cg = QPalette::Disabled; + } + opt2.palette.setCurrentColorGroup(cg); + + // fill in background, if any + + if (opt.backgroundBrush.style() != Qt::NoBrush) + { + QPointF oldBO = painter->brushOrigin(); + painter->setBrushOrigin(opt.rect.topLeft()); + painter->fillRect(opt.rect, opt.backgroundBrush); + painter->setBrushOrigin(oldBO); + } + + drawSelectionRect(painter, opt2, textHighlightRect); + + /* + if (opt.showDecorationSelected) + { + drawSelectionRect(painter, opt2, opt.rect); + drawFocusRect(painter, opt2, opt.rect); + // painter->fillRect ( opt.rect, opt.palette.brush ( cg, QPalette::Highlight ) ); + } + else + { + + // if ( opt.state & QStyle::State_Selected ) + { + // QRect textRect = subElementRect ( QStyle::SE_ItemViewItemText, opt, + // opt.widget ); + // painter->fillRect ( textHighlightRect, opt.palette.brush ( cg, + // QPalette::Highlight ) ); + drawSelectionRect(painter, opt2, textHighlightRect); + drawFocusRect(painter, opt2, textHighlightRect); + } + } + */ + } + + // draw the icon + { + QIcon::Mode mode = QIcon::Normal; + if (!(opt.state & QStyle::State_Enabled)) + mode = QIcon::Disabled; + else if (opt.state & QStyle::State_Selected) + mode = QIcon::Selected; + QIcon::State state = opt.state & QStyle::State_Open ? QIcon::On : QIcon::Off; + + iconbox.setHeight(iconSize); + opt.icon.paint(painter, iconbox, Qt::AlignCenter, mode, state); + } + // set the text colors + QPalette::ColorGroup cg = + opt.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled; + if (cg == QPalette::Normal && !(opt.state & QStyle::State_Active)) + cg = QPalette::Inactive; + if (opt.state & QStyle::State_Selected) + { + painter->setPen(opt.palette.color(cg, QPalette::HighlightedText)); + } + else + { + painter->setPen(opt.palette.color(cg, QPalette::Text)); + } + + // draw the text + QTextOption textOption; + textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); + textOption.setTextDirection(opt.direction); + textOption.setAlignment(QStyle::visualAlignment(opt.direction, opt.displayAlignment)); + QTextLayout textLayout; + textLayout.setTextOption(textOption); + textLayout.setFont(opt.font); + textLayout.setText(opt.text); + + qreal width, height; + viewItemTextLayout(textLayout, textRect.width(), height, width); + + const int lineCount = textLayout.lineCount(); + + const QRect layoutRect = QStyle::alignedRect( + opt.direction, opt.displayAlignment, QSize(textRect.width(), int(height)), textRect); + const QPointF position = layoutRect.topLeft(); + for (int i = 0; i < lineCount; ++i) + { + const QTextLine line = textLayout.lineAt(i); + line.draw(painter, position); + } + + // FIXME: this really has no business of being here. Make generic. + auto instance = (BaseInstance*)index.data(InstanceList::InstancePointerRole) + .value(); + if (instance) + { + drawBadges(painter, opt, instance); + } + + drawProgressOverlay(painter, opt, index.data(GroupViewRoles::ProgressValueRole).toInt(), + index.data(GroupViewRoles::ProgressMaximumRole).toInt()); + + painter->restore(); +} + +QSize ListViewDelegate::sizeHint(const QStyleOptionViewItem &option, + const QModelIndex &index) const +{ + QStyleOptionViewItemV4 opt = option; + initStyleOption(&opt, index); + opt.features |= QStyleOptionViewItem::WrapText; + opt.text = index.data().toString(); + opt.textElideMode = Qt::ElideRight; + opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter; + + QStyle *style = opt.widget ? opt.widget->style() : QApplication::style(); + const int textMargin = + style->pixelMetric(QStyle::PM_FocusFrameHMargin, &option, opt.widget) + 1; + int height = 48 + textMargin * 2 + 5; // TODO: turn constants into variables + QSize szz = viewItemTextSize(&opt); + height += szz.height(); + // FIXME: maybe the icon items could scale and keep proportions? + QSize sz(100, height); + return sz; +} + +QPixmap ListViewDelegate::requestBadgePixmap(const QString &key) +{ + if (!m_pixmapCache.contains(key)) + { + m_pixmapCache.insert(key, new QPixmap(":/icons/badges/" + key + ".png")); + } + return *m_pixmapCache.object(key); +} diff --git a/application/groupview/InstanceDelegate.h b/application/groupview/InstanceDelegate.h new file mode 100644 index 00000000..2b5439cb --- /dev/null +++ b/application/groupview/InstanceDelegate.h @@ -0,0 +1,35 @@ +/* Copyright 2013-2015 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. + */ + +#pragma once + +#include +#include + +class ListViewDelegate : public QStyledItemDelegate +{ +public: + explicit ListViewDelegate(QObject *parent = 0); + + static QPixmap requestBadgePixmap(const QString &key); + +protected: + void paint(QPainter *painter, const QStyleOptionViewItem &option, + const QModelIndex &index) const; + QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const; + +private: + static QCache m_pixmapCache; +}; diff --git a/application/groupview/VisualGroup.cpp b/application/groupview/VisualGroup.cpp new file mode 100644 index 00000000..560fc9ca --- /dev/null +++ b/application/groupview/VisualGroup.cpp @@ -0,0 +1,301 @@ +#include "VisualGroup.h" + +#include +#include +#include +#include + +#include "GroupView.h" + +VisualGroup::VisualGroup(const QString &text, GroupView *view) : view(view), text(text), collapsed(false) +{ +} + +VisualGroup::VisualGroup(const VisualGroup *other) + : view(other->view), text(other->text), collapsed(other->collapsed) +{ +} + +void VisualGroup::update() +{ + auto temp_items = items(); + auto itemsPerRow = view->itemsPerRow(); + + int numRows = qMax(1, qCeil((qreal)temp_items.size() / (qreal)itemsPerRow)); + rows = QVector(numRows); + + int maxRowHeight = 0; + int positionInRow = 0; + int currentRow = 0; + int offsetFromTop = 0; + for (auto item: temp_items) + { + if(positionInRow == itemsPerRow) + { + rows[currentRow].height = maxRowHeight; + rows[currentRow].top = offsetFromTop; + currentRow ++; + offsetFromTop += maxRowHeight + 5; + positionInRow = 0; + maxRowHeight = 0; + } + auto itemHeight = view->itemDelegate()->sizeHint(view->viewOptions(), item).height(); + if(itemHeight > maxRowHeight) + { + maxRowHeight = itemHeight; + } + rows[currentRow].items.append(item); + positionInRow++; + } + rows[currentRow].height = maxRowHeight; + rows[currentRow].top = offsetFromTop; +} + +QPair VisualGroup::positionOf(const QModelIndex &index) const +{ + int x = 0; + int y = 0; + for (auto & row: rows) + { + for(auto x = 0; x < row.items.size(); x++) + { + if(row.items[x] == index) + { + return qMakePair(x,y); + } + } + y++; + } + return qMakePair(x, y); +} + +int VisualGroup::rowTopOf(const QModelIndex &index) const +{ + auto position = positionOf(index); + return rows[position.second].top; +} + +int VisualGroup::rowHeightOf(const QModelIndex &index) const +{ + auto position = positionOf(index); + return rows[position.second].height; +} + +VisualGroup::HitResults VisualGroup::hitScan(const QPoint &pos) const +{ + VisualGroup::HitResults results = VisualGroup::NoHit; + int y_start = verticalPosition(); + int body_start = y_start + headerHeight(); + int body_end = body_start + contentHeight() + 5; // FIXME: wtf is this 5? + int y = pos.y(); + // int x = pos.x(); + if (y < y_start) + { + results = VisualGroup::NoHit; + } + else if (y < body_start) + { + results = VisualGroup::HeaderHit; + int collapseSize = headerHeight() - 4; + + // the icon + QRect iconRect = QRect(view->m_leftMargin + 2, 2 + y_start, collapseSize, collapseSize); + if (iconRect.contains(pos)) + { + results |= VisualGroup::CheckboxHit; + } + } + else if (y < body_end) + { + results |= VisualGroup::BodyHit; + } + return results; +} + +void VisualGroup::drawHeader(QPainter *painter, const QStyleOptionViewItem &option) +{ + painter->setRenderHint(QPainter::Antialiasing); + + const QRect optRect = option.rect; + QFont font(QApplication::font()); + font.setBold(true); + const QFontMetrics fontMetrics = QFontMetrics(font); + + QColor outlineColor = option.palette.text().color(); + outlineColor.setAlphaF(0.35); + + //BEGIN: top left corner + { + painter->save(); + painter->setPen(outlineColor); + const QPointF topLeft(optRect.topLeft()); + QRectF arc(topLeft, QSizeF(4, 4)); + arc.translate(0.5, 0.5); + painter->drawArc(arc, 1440, 1440); + painter->restore(); + } + //END: top left corner + + //BEGIN: left vertical line + { + QPoint start(optRect.topLeft()); + start.ry() += 3; + QPoint verticalGradBottom(optRect.topLeft()); + verticalGradBottom.ry() += fontMetrics.height() + 5; + QLinearGradient gradient(start, verticalGradBottom); + gradient.setColorAt(0, outlineColor); + gradient.setColorAt(1, Qt::transparent); + painter->fillRect(QRect(start, QSize(1, fontMetrics.height() + 5)), gradient); + } + //END: left vertical line + + //BEGIN: horizontal line + { + QPoint start(optRect.topLeft()); + start.rx() += 3; + QPoint horizontalGradTop(optRect.topLeft()); + horizontalGradTop.rx() += optRect.width() - 6; + painter->fillRect(QRect(start, QSize(optRect.width() - 6, 1)), outlineColor); + } + //END: horizontal line + + //BEGIN: top right corner + { + painter->save(); + painter->setPen(outlineColor); + QPointF topRight(optRect.topRight()); + topRight.rx() -= 4; + QRectF arc(topRight, QSizeF(4, 4)); + arc.translate(0.5, 0.5); + painter->drawArc(arc, 0, 1440); + painter->restore(); + } + //END: top right corner + + //BEGIN: right vertical line + { + QPoint start(optRect.topRight()); + start.ry() += 3; + QPoint verticalGradBottom(optRect.topRight()); + verticalGradBottom.ry() += fontMetrics.height() + 5; + QLinearGradient gradient(start, verticalGradBottom); + gradient.setColorAt(0, outlineColor); + gradient.setColorAt(1, Qt::transparent); + painter->fillRect(QRect(start, QSize(1, fontMetrics.height() + 5)), gradient); + } + //END: right vertical line + + //BEGIN: checkboxy thing + { + painter->save(); + painter->setRenderHint(QPainter::Antialiasing, false); + painter->setFont(font); + QColor penColor(option.palette.text().color()); + penColor.setAlphaF(0.6); + painter->setPen(penColor); + QRect iconSubRect(option.rect); + iconSubRect.setTop(iconSubRect.top() + 7); + iconSubRect.setLeft(iconSubRect.left() + 7); + + int sizing = fontMetrics.height(); + int even = ( (sizing - 1) % 2 ); + + iconSubRect.setHeight(sizing - even); + iconSubRect.setWidth(sizing - even); + painter->drawRect(iconSubRect); + + + /* + if(collapsed) + painter->drawText(iconSubRect, Qt::AlignHCenter | Qt::AlignVCenter, "+"); + else + painter->drawText(iconSubRect, Qt::AlignHCenter | Qt::AlignVCenter, "-"); + */ + painter->setBrush(option.palette.text()); + painter->fillRect(iconSubRect.x(), iconSubRect.y() + iconSubRect.height() / 2, + iconSubRect.width(), 2, penColor); + if (collapsed) + { + painter->fillRect(iconSubRect.x() + iconSubRect.width() / 2, iconSubRect.y(), 2, + iconSubRect.height(), penColor); + } + + painter->restore(); + } + //END: checkboxy thing + + //BEGIN: text + { + QRect textRect(option.rect); + textRect.setTop(textRect.top() + 7); + textRect.setLeft(textRect.left() + 7 + fontMetrics.height() + 7); + textRect.setHeight(fontMetrics.height()); + textRect.setRight(textRect.right() - 7); + + painter->save(); + painter->setFont(font); + QColor penColor(option.palette.text().color()); + penColor.setAlphaF(0.6); + painter->setPen(penColor); + painter->drawText(textRect, Qt::AlignLeft | Qt::AlignVCenter, text); + painter->restore(); + } + //END: text +} + +int VisualGroup::totalHeight() const +{ + return headerHeight() + 5 + contentHeight(); // FIXME: wtf is that '5'? +} + +int VisualGroup::headerHeight() const +{ + QFont font(QApplication::font()); + font.setBold(true); + QFontMetrics fontMetrics(font); + + const int height = fontMetrics.height() + 1 /* 1 pixel-width gradient */ + + 11 /* top and bottom separation */; + return height; + /* + int raw = view->viewport()->fontMetrics().height() + 4; + // add english. maybe. depends on font height. + if (raw % 2 == 0) + raw++; + return std::min(raw, 25); + */ +} + +int VisualGroup::contentHeight() const +{ + if (collapsed) + { + return 0; + } + auto last = rows[numRows() - 1]; + return last.top + last.height; +} + +int VisualGroup::numRows() const +{ + return rows.size(); +} + +int VisualGroup::verticalPosition() const +{ + return m_verticalPosition; +} + +QList VisualGroup::items() const +{ + QList indices; + for (int i = 0; i < view->model()->rowCount(); ++i) + { + const QModelIndex index = view->model()->index(i, 0); + if (index.data(GroupViewRoles::GroupRole).toString() == text) + { + indices.append(index); + } + } + return indices; +} diff --git a/application/groupview/VisualGroup.h b/application/groupview/VisualGroup.h new file mode 100644 index 00000000..d8d1f145 --- /dev/null +++ b/application/groupview/VisualGroup.h @@ -0,0 +1,91 @@ +#pragma once + +#include +#include +#include +#include + +class GroupView; +class QPainter; +class QModelIndex; + +struct VisualRow +{ + QList items; + int height = 0; + int top = 0; + inline int size() const + { + return items.size(); + } + inline QModelIndex &operator[](int i) + { + return items[i]; + } +}; + +struct VisualGroup +{ +/* constructors */ + VisualGroup(const QString &text, GroupView *view); + VisualGroup(const VisualGroup *other); + +/* data */ + GroupView *view = nullptr; + QString text; + bool collapsed = false; + QVector rows; + int firstItemIndex = 0; + int m_verticalPosition = 0; + +/* logic */ + /// update the internal list of items and flow them into the rows. + void update(); + + /// draw the header at y-position. + void drawHeader(QPainter *painter, const QStyleOptionViewItem &option); + + /// height of the group, in total. includes a small bit of padding. + int totalHeight() const; + + /// height of the group header, in pixels + int headerHeight() const; + + /// height of the group content, in pixels + int contentHeight() const; + + /// the number of visual rows this group has + int numRows() const; + + /// actually calculate the above value + int calculateNumRows() const; + + /// the height at which this group starts, in pixels + int verticalPosition() const; + + /// relative geometry - top of the row of the given item + int rowTopOf(const QModelIndex &index) const; + + /// height of the row of the given item + int rowHeightOf(const QModelIndex &index) const; + + /// x/y position of the given item inside the group (in items!) + QPair positionOf(const QModelIndex &index) const; + + enum HitResult + { + NoHit = 0x0, + TextHit = 0x1, + CheckboxHit = 0x2, + HeaderHit = 0x4, + BodyHit = 0x8 + }; + Q_DECLARE_FLAGS(HitResults, HitResult) + + /// shoot! BANG! what did we hit? + HitResults hitScan (const QPoint &pos) const; + + QList items() const; +}; + +Q_DECLARE_OPERATORS_FOR_FLAGS(VisualGroup::HitResults) -- cgit v1.2.3