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Add 'depends/groupview/' from commit '946d49675cb4725c31ab49a51f3bcae302f89a19'

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git-subtree-dir: depends/groupview
git-subtree-mainline: a17caba2c9
git-subtree-split: 946d49675c
This commit is contained in:
Petr Mrázek 2014-02-04 00:53:05 +01:00
commit b82eb5873e
13 changed files with 1846 additions and 0 deletions
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depends/groupview/.clang-format Normal file
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UseTab: true
IndentWidth: 4
TabWidth: 4
ConstructorInitializerIndentWidth: 4
AccessModifierOffset: -4
IndentCaseLabels: false
IndentFunctionDeclarationAfterType: false
NamespaceIndentation: None
BreakBeforeBraces: Allman
AllowShortIfStatementsOnASingleLine: false
ColumnLimit: 96
MaxEmptyLinesToKeep: 1
Standard: Cpp11
Cpp11BracedListStyle: true
SpacesInParentheses: false
SpaceInEmptyParentheses: false
SpacesInCStyleCastParentheses: false
SpaceAfterControlStatementKeyword: true
AlignTrailingComments: true
SpacesBeforeTrailingComments: 1

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build/
*.user*

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depends/groupview/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 2.8.9)
project(GroupView)
set(CMAKE_AUTOMOC ON)
IF(APPLE)
message(STATUS "Using APPLE CMAKE_CXX_FLAGS")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall")
ELSEIF(UNIX)
# assume GCC, add C++0x/C++11 stuff
MESSAGE(STATUS "Using UNIX CMAKE_CXX_FLAGS")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall")
ELSEIF(MINGW)
MESSAGE(STATUS "Using MINGW CMAKE_CXX_FLAGS")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11 -Wall")
ENDIF()
find_package(Qt5Core REQUIRED)
find_package(Qt5Gui REQUIRED)
find_package(Qt5Widgets REQUIRED)
include_directories(${Qt5Core_INCLUDE_DIRS} ${Qt5Gui_INCLUDE_DIRS} ${Qt5Widgets_INCLUDE_DIRS})
set(SOURCES
main.cpp
main.h
GroupView.h
GroupView.cpp
Group.h
Group.cpp
GroupedProxyModel.h
GroupedProxyModel.cpp
InstanceDelegate.h
InstanceDelegate.cpp
)
add_executable(GroupView ${SOURCES})
qt5_use_modules(GroupView Core Gui Widgets)

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depends/groupview/Group.cpp Normal file
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#include "Group.h"
#include <QModelIndex>
#include <QPainter>
#include <QtMath>
#include "GroupView.h"
Group::Group(const QString &text, GroupView *view) : view(view), text(text), collapsed(false)
{
}
Group::Group(const Group *other)
: view(other->view), text(other->text), collapsed(other->collapsed)
{
}
void Group::update()
{
firstItemIndex = firstItem().row();
rowHeights = QVector<int>(numRows());
for (int i = 0; i < numRows(); ++i)
{
rowHeights[i] = view->categoryRowHeight(
view->model()->index(i * view->itemsPerRow() + firstItemIndex, 0));
}
}
Group::HitResults Group::hitScan(const QPoint &pos) const
{
Group::HitResults results = Group::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 = Group::NoHit;
}
else if(y < body_start)
{
results = Group::HeaderHit;
int collapseSize = headerHeight() - 4;
// the icon
QRect iconRect = QRect(view->m_leftMargin + 2, 2 + y_start, collapseSize, collapseSize);
if(iconRect.contains(pos))
{
results |= Group::CheckboxHit;
}
}
else if (y < body_end)
{
results |= Group::BodyHit;
}
return results;
}
void Group::drawHeader(QPainter *painter, const int y)
{
painter->save();
int height = headerHeight() - 4;
int collapseSize = height;
// the icon
QRect iconRect = QRect(view->m_leftMargin + 2, 2 + y, collapseSize, collapseSize);
painter->setPen(QPen(Qt::black, 1));
painter->drawRect(iconRect);
static const int margin = 2;
QRect iconSubrect = iconRect.adjusted(margin, margin, -margin, -margin);
int midX = iconSubrect.center().x();
int midY = iconSubrect.center().y();
if (collapsed)
{
painter->drawLine(midX, iconSubrect.top(), midX, iconSubrect.bottom());
}
painter->drawLine(iconSubrect.left(), midY, iconSubrect.right(), midY);
// the text
int textWidth = painter->fontMetrics().width(text);
QRect textRect = QRect(iconRect.right() + 4, y, textWidth, headerHeight());
painter->setBrush(view->viewOptions().palette.text());
view->style()->drawItemText(painter, textRect, Qt::AlignHCenter | Qt::AlignVCenter,
view->viewport()->palette(), true, text);
// the line
painter->drawLine(textRect.right() + 4, y + headerHeight() / 2,
view->contentWidth() - view->m_rightMargin, y + headerHeight() / 2);
painter->restore();
}
int Group::totalHeight() const
{
return headerHeight() + 5 + contentHeight(); // FIXME: wtf is that '5'?
}
int Group::headerHeight() const
{
return view->viewport()->fontMetrics().height() + 4;
}
int Group::contentHeight() const
{
if (collapsed)
{
return 0;
}
int result = 0;
for (int i = 0; i < rowHeights.size(); ++i)
{
result += rowHeights[i];
}
return result;
}
int Group::numRows() const
{
return qMax(1, qCeil((qreal)numItems() / (qreal)view->itemsPerRow()));
}
int Group::verticalPosition() const
{
int res = 0;
const QList<Group *> cats = view->m_groups;
for (int i = 0; i < cats.size(); ++i)
{
if (cats.at(i) == this)
{
break;
}
res += cats.at(i)->totalHeight() + view->m_categoryMargin;
}
return res;
}
QList<QModelIndex> Group::items() const
{
QList<QModelIndex> 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;
}
int Group::numItems() const
{
return items().size();
}
QModelIndex Group::firstItem() const
{
QList<QModelIndex> indices = items();
return indices.isEmpty() ? QModelIndex() : indices.first();
}
QModelIndex Group::lastItem() const
{
QList<QModelIndex> indices = items();
return indices.isEmpty() ? QModelIndex() : indices.last();
}

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depends/groupview/Group.h Normal file
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#pragma once
#include <QString>
#include <QRect>
#include <QVector>
class GroupView;
class QPainter;
class QModelIndex;
struct Group
{
/* constructors */
Group(const QString &text, GroupView *view);
Group(const Group *other);
/* data */
GroupView *view;
QString text;
bool collapsed;
QVector<int> rowHeights;
int firstItemIndex;
/* logic */
/// do stuff. and things. TODO: redo.
void update();
/// draw the header at y-position.
void drawHeader(QPainter *painter, const int y);
/// 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;
/// the height at which this group starts, in pixels
int verticalPosition() 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;
/// super derpy thing.
QList<QModelIndex> items() const;
/// I don't even
int numItems() const;
QModelIndex firstItem() const;
QModelIndex lastItem() const;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(Group::HitResults)

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#include "GroupView.h"
#include <QPainter>
#include <QApplication>
#include <QtMath>
#include <QDebug>
#include <QMouseEvent>
#include <QListView>
#include <QPersistentModelIndex>
#include <QDrag>
#include <QMimeData>
#include <QScrollBar>
#include "Group.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;
}
GroupView::GroupView(QWidget *parent)
: QAbstractItemView(parent), m_leftMargin(5), m_rightMargin(5), m_bottomMargin(5),
m_categoryMargin(5) //, m_updatesDisabled(false), m_categoryEditor(0), m_editedCategory(0)
{
// setViewMode(IconMode);
// setMovement(Snap);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
// setWordWrap(true);
// setDragDropMode(QListView::InternalMove);
setAcceptDrops(true);
m_spacing = 5;
}
GroupView::~GroupView()
{
qDeleteAll(m_groups);
m_groups.clear();
}
void GroupView::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight,
const QVector<int> &roles)
{
if (roles.contains(GroupViewRoles::GroupRole) || roles.contains(Qt::DisplayRole))
{
updateGeometries();
}
viewport()->update();
}
void GroupView::rowsInserted(const QModelIndex &parent, int start, int end)
{
updateGeometries();
viewport()->update();
}
void GroupView::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
{
updateGeometries();
viewport()->update();
}
void GroupView::updateGeometries()
{
int previousScroll = verticalScrollBar()->value();
QMap<QString, Group *> cats;
for (int i = 0; i < model()->rowCount(); ++i)
{
const QString groupName =
model()->index(i, 0).data(GroupViewRoles::GroupRole).toString();
if (!cats.contains(groupName))
{
Group *old = this->category(groupName);
if (old)
{
cats.insert(groupName, new Group(old));
}
else
{
cats.insert(groupName, new Group(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;
for (auto category : m_groups)
{
totalHeight += category->totalHeight() + m_categoryMargin;
}
// remove the last margin (we don't want it)
totalHeight -= m_categoryMargin;
totalHeight += m_bottomMargin;
verticalScrollBar()->setRange(0, totalHeight - height());
}
verticalScrollBar()->setValue(qMin(previousScroll, verticalScrollBar()->maximum()));
viewport()->update();
}
bool GroupView::isIndexHidden(const QModelIndex &index) const
{
Group *cat = category(index);
if (cat)
{
return cat->collapsed;
}
else
{
return false;
}
}
Group *GroupView::category(const QModelIndex &index) const
{
return category(index.data(GroupViewRoles::GroupRole).toString());
}
Group *GroupView::category(const QString &cat) const
{
for (auto group : m_groups)
{
if (group->text == cat)
{
return group;
}
}
return nullptr;
}
Group *GroupView::categoryAt(const QPoint &pos) const
{
for (auto group : m_groups)
{
if(group->hitScan(pos) & Group::CheckboxHit)
{
return group;
}
}
return nullptr;
}
int GroupView::itemsPerRow() const
{
return qFloor((qreal)(contentWidth()) / (qreal)(itemWidth() + m_spacing));
}
int GroupView::contentWidth() const
{
return width() - m_leftMargin - m_rightMargin;
}
int GroupView::itemWidth() const
{
return itemDelegate()
->sizeHint(viewOptions(), model()->index(model()->rowCount() - 1, 0))
.width();
}
int GroupView::categoryRowHeight(const QModelIndex &index) const
{
QModelIndexList indices;
int internalRow = categoryInternalPosition(index).second;
for (auto &i : category(index)->items())
{
if (categoryInternalPosition(i).second == internalRow)
{
indices.append(i);
}
}
int largestHeight = 0;
for (auto &i : indices)
{
largestHeight =
qMax(largestHeight, itemDelegate()->sizeHint(viewOptions(), i).height());
}
return largestHeight;
}
QPair<int, int> GroupView::categoryInternalPosition(const QModelIndex &index) const
{
QList<QModelIndex> indices = category(index)->items();
int x = 0;
int y = 0;
const int perRow = itemsPerRow();
for (int i = 0; i < indices.size(); ++i)
{
if (indices.at(i) == index)
{
break;
}
++x;
if (x == perRow)
{
x = 0;
++y;
}
}
return qMakePair(x, y);
}
int GroupView::categoryInternalRowTop(const QModelIndex &index) const
{
Group *cat = category(index);
int categoryInternalRow = categoryInternalPosition(index).second;
int result = 0;
for (int i = 0; i < categoryInternalRow; ++i)
{
result += cat->rowHeights.at(i);
}
return result;
}
int GroupView::itemHeightForCategoryRow(const Group *category, const int internalRow) const
{
for (auto &i : category->items())
{
QPair<int, int> pos = categoryInternalPosition(i);
if (pos.second == internalRow)
{
return categoryRowHeight(i);
}
}
return -1;
}
void GroupView::mousePressEvent(QMouseEvent *event)
{
// endCategoryEditor();
QPoint pos = event->pos() + offset();
QPersistentModelIndex index = indexAt(pos);
m_pressedIndex = index;
m_pressedAlreadySelected = selectionModel()->isSelected(m_pressedIndex);
QItemSelectionModel::SelectionFlags selection_flags = selectionCommand(index, event);
m_pressedPosition = pos;
m_pressedCategory = categoryAt(m_pressedPosition);
if (m_pressedCategory)
{
setState(m_pressedCategory->collapsed ? ExpandingState : CollapsingState);
event->accept();
return;
}
if (index.isValid() && (index.flags() & Qt::ItemIsEnabled))
{
// 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(m_pressedPosition, pos);
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 pos = 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 = pos;
}
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(pos, pos), QItemSelectionModel::ClearAndSelect);
QModelIndex index = indexAt(pos);
// 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 pos = event->pos() + offset();
QPersistentModelIndex index = indexAt(pos);
bool click = (index == m_pressedIndex && index.isValid()) ||
(m_pressedCategory && m_pressedCategory == categoryAt(pos));
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)
{
QPainter painter(this->viewport());
int y = -verticalOffset();
for (int i = 0; i < m_groups.size(); ++i)
{
Group *category = m_groups.at(i);
category->drawHeader(&painter, y);
y += category->totalHeight() + m_categoryMargin;
}
for (int i = 0; i < model()->rowCount(); ++i)
{
const QModelIndex index = model()->index(i, 0);
if (isIndexHidden(index))
{
continue;
}
Qt::ItemFlags flags = index.flags();
QStyleOptionViewItemV4 option(viewOptions());
option.rect = visualRect(index);
option.widget = this;
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)
{
// QListView::resizeEvent(event);
// if (m_categoryEditor)
// {
// m_categoryEditor->resize(qMax(contentWidth() / 2,
// m_editedCategory->textRect.width()),
// m_categoryEditor->height());
// }
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<Group *, int> dropPos = rowDropPos(event->pos() + offset());
const Group *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)
{
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);
drag->setHotSpot(m_pressedPosition - rect.topLeft());
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();
}
const Group *cat = category(index);
QPair<int, int> pos = categoryInternalPosition(index);
int x = pos.first;
// int y = pos.second;
QRect out;
out.setTop(cat->verticalPosition() + cat->headerHeight() + 5 + categoryInternalRowTop(index));
out.setLeft(m_spacing + x * (itemWidth() + m_spacing));
out.setSize(itemDelegate()->sizeHint(viewOptions(), index));
return out;
}
/*
void CategorizedView::startCategoryEditor(Category *category)
{
if (m_categoryEditor != 0)
{
return;
}
m_editedCategory = category;
m_categoryEditor = new QLineEdit(m_editedCategory->text, this);
QRect rect = m_editedCategory->textRect;
rect.setWidth(qMax(contentWidth() / 2, rect.width()));
m_categoryEditor->setGeometry(rect);
m_categoryEditor->show();
m_categoryEditor->setFocus();
connect(m_categoryEditor, &QLineEdit::returnPressed, this,
&CategorizedView::endCategoryEditor);
}
void CategorizedView::endCategoryEditor()
{
if (m_categoryEditor == 0)
{
return;
}
m_editedCategory->text = m_categoryEditor->text();
m_updatesDisabled = true;
foreach (const QModelIndex &index, itemsForCategory(m_editedCategory))
{
const_cast<QAbstractItemModel *>(index.model())->setData(index,
m_categoryEditor->text(), CategoryRole);
}
m_updatesDisabled = false;
delete m_categoryEditor;
m_categoryEditor = 0;
m_editedCategory = 0;
updateGeometries();
}
*/
QModelIndex GroupView::indexAt(const QPoint &point) const
{
for (int i = 0; i < model()->rowCount(); ++i)
{
QModelIndex index = model()->index(i, 0);
if (geometryRect(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 = geometryRect(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)
{
if (event->source() != this)
{
return false;
}
if (!listsIntersect(event->mimeData()->formats(), model()->mimeTypes()))
{
return false;
}
if (!model()->canDropMimeData(event->mimeData(), event->dropAction(),
rowDropPos(event->pos()).second, 0, QModelIndex()))
{
return false;
}
return true;
}
QPair<Group *, int> GroupView::rowDropPos(const QPoint &pos)
{
// check that we aren't on a category header and calculate which category we're in
Group *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<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 /*spacing()*/, ++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())
{
qDebug() << "model row: invalid";
return current;
}
qDebug() << "model row: " << current.row();
auto cat = category(current);
int i = m_groups.indexOf(cat);
if(i >= 0)
{
// this is a pile of something foul
auto real_group = m_groups[i];
int beginning_row = 0;
for(auto group: m_groups)
{
if(group == real_group)
break;
beginning_row += group->numRows();
}
qDebug() << "category: " << real_group->text;
QPair<int, int> pos = categoryInternalPosition(current);
int row = beginning_row + pos.second;
qDebug() << "row: " << row;
qDebug() << "column: " << pos.first;
}
return current;
}

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#pragma once
#include <QListView>
#include <QLineEdit>
#include <QScrollBar>
struct GroupViewRoles
{
enum
{
GroupRole = Qt::UserRole,
ProgressValueRole,
ProgressMaximumRole
};
};
struct Group;
class GroupView : public QAbstractItemView
{
Q_OBJECT
public:
GroupView(QWidget *parent = 0);
~GroupView();
QRect geometryRect(const QModelIndex &index) const;
virtual QRect visualRect(const QModelIndex &index) const override;
QModelIndex indexAt(const QPoint &point) const;
void setSelection(const QRect &rect,
const QItemSelectionModel::SelectionFlags commands) override;
virtual int horizontalOffset() const override
{
return horizontalScrollBar()->value();
}
virtual int verticalOffset() const override
{
return verticalScrollBar()->value();
}
virtual void scrollContentsBy(int dx, int dy) override
{
scrollDirtyRegion(dx, dy);
viewport()->scroll(dx, dy);
}
/*
* TODO!
*/
virtual void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) override
{
return;
}
virtual QModelIndex moveCursor(CursorAction cursorAction,
Qt::KeyboardModifiers modifiers) override;
virtual QRegion visualRegionForSelection(const QItemSelection &selection) const override;
protected
slots:
virtual void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight,
const QVector<int> &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;
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 Group;
QList<Group *> m_groups;
int m_leftMargin;
int m_rightMargin;
int m_bottomMargin;
int m_categoryMargin;
// bool m_updatesDisabled;
Group *category(const QModelIndex &index) const;
Group *category(const QString &cat) const;
Group *categoryAt(const QPoint &pos) const;
int itemsPerRow() const;
int contentWidth() const;
private:
int itemWidth() const;
int categoryRowHeight(const QModelIndex &index) const;
/*QLineEdit *m_categoryEditor;
Category *m_editedCategory;
void startCategoryEditor(Category *category);
private slots:
void endCategoryEditor();*/
private: /* variables */
QPoint m_pressedPosition;
QPersistentModelIndex m_pressedIndex;
bool m_pressedAlreadySelected;
Group *m_pressedCategory;
QItemSelectionModel::SelectionFlag m_ctrlDragSelectionFlag;
QPoint m_lastDragPosition;
int m_spacing = 5;
private: /* methods */
QPair<int, int> categoryInternalPosition(const QModelIndex &index) const;
int categoryInternalRowTop(const QModelIndex &index) const;
int itemHeightForCategoryRow(const Group *category, const int internalRow) const;
QPixmap renderToPixmap(const QModelIndexList &indices, QRect *r) const;
QList<QPair<QRect, QModelIndex>> draggablePaintPairs(const QModelIndexList &indices,
QRect *r) const;
bool isDragEventAccepted(QDropEvent *event);
QPair<Group *, int> rowDropPos(const QPoint &pos);
QPoint offset() const;
};

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#include "GroupedProxyModel.h"
#include "GroupView.h"
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 left.row() < right.row();
}
else
{
return leftCategory < rightCategory;
}
}

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#pragma once
#include <QSortFilterProxyModel>
class GroupedProxyModel : public QSortFilterProxyModel
{
Q_OBJECT
public:
GroupedProxyModel(QObject *parent = 0);
protected:
bool lessThan(const QModelIndex &left, const QModelIndex &right) const;
};

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/* Copyright 2013 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 <QPainter>
#include <QTextOption>
#include <QTextLayout>
#include <QApplication>
#include <QtCore/qmath.h>
#include "GroupView.h"
// 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();
}
#define QFIXED_MAX (INT_MAX / 256)
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();
}
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);
}
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);
}
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;
}

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/* Copyright 2013 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 <QStyledItemDelegate>
class ListViewDelegate : public QStyledItemDelegate
{
public:
explicit ListViewDelegate(QObject *parent = 0);
protected:
void paint(QPainter *painter, const QStyleOptionViewItem &option,
const QModelIndex &index) const;
QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;
};

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#include "main.h"
#include <QApplication>
#include <QStandardItemModel>
#include <QPainter>
#include <QTime>
#include "GroupView.h"
#include "GroupedProxyModel.h"
#include "InstanceDelegate.h"
Progresser *progresser;
QPixmap icon(const Qt::GlobalColor color)
{
QPixmap p = QPixmap(32, 32);
p.fill(QColor(color));
return p;
}
QPixmap icon(const int number)
{
QPixmap p = icon(Qt::white);
QPainter painter(&p);
QFont font = painter.font();
font.setBold(true);
font.setPixelSize(28);
painter.setFont(font);
painter.drawText(QRect(QPoint(0, 0), p.size()), Qt::AlignVCenter | Qt::AlignHCenter,
QString::number(number));
painter.end();
return p;
}
QStandardItem *createItem(const Qt::GlobalColor color, const QString &text,
const QString &category)
{
QStandardItem *item = new QStandardItem;
item->setText(text);
item->setData(icon(color), Qt::DecorationRole);
item->setData(category, GroupViewRoles::GroupRole);
item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
// progresser->addTrackedIndex(item);
return item;
}
QStandardItem *createItem(const int index, const QString &category)
{
QStandardItem *item = new QStandardItem;
item->setText(QString("Item #%1").arg(index));
item->setData(icon(index), Qt::DecorationRole);
item->setData(category, GroupViewRoles::GroupRole);
item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
// progresser->addTrackedIndex(item);
return item;
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
qsrand(QTime::currentTime().msec());
progresser = new Progresser();
QStandardItemModel model;
model.setRowCount(10);
model.setColumnCount(1);
model.setItem(
0, createItem(Qt::red,
"Red is a color. Some more text. I'm out of ideas. 42. What's your name?",
"Colorful"));
model.setItem(1, createItem(Qt::blue, "Blue", "Colorful"));
model.setItem(2, createItem(Qt::yellow, "Yellow", "Colorful"));
model.setItem(3, createItem(Qt::black, "Black", "Not Colorful"));
model.setItem(4, createItem(Qt::darkGray, "Dark Gray", "Not Colorful"));
model.setItem(5, createItem(Qt::gray, "Gray", "Not Colorful"));
model.setItem(6, createItem(Qt::lightGray, "Light Gray", "Not Colorful"));
model.setItem(7, createItem(Qt::white, "White", "Not Colorful"));
model.setItem(8, createItem(Qt::darkGreen, "Dark Green", ""));
model.setItem(9, progresser->addTrackedIndex(createItem(Qt::green, "Green", "")));
for (int i = 0; i < 20; ++i)
{
model.setItem(i + 10, createItem(i + 1, "Items 1-20"));
}
GroupedProxyModel pModel;
pModel.setSourceModel(&model);
GroupView w;
w.setItemDelegate(new ListViewDelegate);
w.setModel(&pModel);
w.resize(640, 480);
w.show();
return a.exec();
}

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#pragma once
#include <QObject>
#include <QTimer>
#include <QList>
#include <QStandardItem>
#include <QDebug>
#include "GroupView.h"
class Progresser : public QObject
{
Q_OBJECT
public:
explicit Progresser(QObject *parent = 0) : QObject(parent)
{
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(timeout()));
timer->start(50);
}
QStandardItem *addTrackedIndex(QStandardItem *item)
{
item->setData(1000, GroupViewRoles::ProgressMaximumRole);
m_items.append(item);
return item;
}
public
slots:
void timeout()
{
QList<QStandardItem *> toRemove;
for (auto item : m_items)
{
int maximum = item->data(GroupViewRoles::ProgressMaximumRole).toInt();
int value = item->data(GroupViewRoles::ProgressValueRole).toInt();
int newvalue = std::min(value + 3, maximum);
item->setData(newvalue, GroupViewRoles::ProgressValueRole);
if(newvalue >= maximum)
{
toRemove.append(item);
}
}
for(auto remove : toRemove)
{
m_items.removeAll(remove);
}
}
private:
QList<QStandardItem *> m_items;
};