/
palettemodel.cpp
1049 lines (883 loc) · 41.4 KB
/
palettemodel.cpp
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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2019 Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//=============================================================================
#include "palettemodel.h"
#include "libmscore/beam.h"
#include "libmscore/chordrest.h"
#include "libmscore/icon.h"
#include "libmscore/select.h"
#include "palettetree.h"
#include "palette.h"
#include "preferences.h"
#include "scoreaccessibility.h"
namespace Ms {
//---------------------------------------------------------
// PaletteTreeModel::PaletteTreeModel
//---------------------------------------------------------
PaletteTreeModel::PaletteTreeModel(std::unique_ptr<PaletteTree> tree, QObject* parent)
: QAbstractItemModel(parent), _paletteTree(std::move(tree))
{
connect(this, &QAbstractItemModel::dataChanged, this, &PaletteTreeModel::onDataChanged);
connect(this, &QAbstractItemModel::layoutChanged, this, &PaletteTreeModel::setTreeChanged);
connect(this, &QAbstractItemModel::modelReset, this, &PaletteTreeModel::setTreeChanged);
connect(this, &QAbstractItemModel::rowsInserted, this, &PaletteTreeModel::setTreeChanged);
connect(this, &QAbstractItemModel::rowsMoved, this, &PaletteTreeModel::setTreeChanged);
connect(this, &QAbstractItemModel::rowsRemoved, this, &PaletteTreeModel::setTreeChanged);
}
//---------------------------------------------------------
// PaletteTreeModel::onDataChanged
//---------------------------------------------------------
void PaletteTreeModel::onDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight, const QVector<int>& roles)
{
Q_UNUSED(topLeft);
Q_UNUSED(bottomRight);
static const std::set<int> nonPersistentRoles({ CellActiveRole, PaletteExpandedRole });
bool treeChanged = false;
for (int role : roles) {
if (!nonPersistentRoles.count(role)) {
treeChanged = true;
break;
}
}
if (treeChanged)
setTreeChanged();
}
//---------------------------------------------------------
// PaletteTreeModel::setTreeChanged
//---------------------------------------------------------
void PaletteTreeModel::setTreeChanged()
{
_treeChanged = true;
if (!_treeChangedSignalBlocked)
emit treeChanged();
}
//---------------------------------------------------------
// PaletteTreeModel::blockTreeChanged
//---------------------------------------------------------
bool PaletteTreeModel::blockTreeChanged(bool block)
{
const bool wasBlocked = _treeChangedSignalBlocked;
_treeChangedSignalBlocked = block;
if (wasBlocked && !block && _treeChanged)
emit treeChanged();
return wasBlocked;
}
//---------------------------------------------------------
// PaletteTreeModel::iptrToPalettePanel
//---------------------------------------------------------
PalettePanel* PaletteTreeModel::iptrToPalettePanel(void* iptr, int* idx)
{
const auto palette = std::find_if(
palettes().begin(), palettes().end(),
[iptr](const std::unique_ptr<PalettePanel>& p) {
return iptr == p.get();
});
if (idx)
(*idx) = palette - palettes().begin();
if (palette != palettes().end())
return static_cast<PalettePanel*>(iptr);
return nullptr;
}
//---------------------------------------------------------
// PaletteTreeModel::findPalettePanel
//---------------------------------------------------------
const PalettePanel* PaletteTreeModel::findPalettePanel(const QModelIndex& index) const
{
if (index.internalPointer() != _paletteTree.get())
return nullptr;
const int row = index.row();
if (index.column() != 0 || row < 0 || row > int(palettes().size()))
return nullptr;
return palettes()[row].get();
}
//---------------------------------------------------------
// PaletteTreeModel::findPalettePanel
//---------------------------------------------------------
PalettePanel* PaletteTreeModel::findPalettePanel(const QModelIndex& index)
{
return const_cast<PalettePanel*>(const_cast<const PaletteTreeModel*>(this)->findPalettePanel(index));
}
//---------------------------------------------------------
// PaletteTreeModel::findCell
//---------------------------------------------------------
PaletteCellConstPtr PaletteTreeModel::findCell(const QModelIndex& index) const
{
if (const PalettePanel* pp = iptrToPalettePanel(index.internalPointer())) {
const int row = index.row();
if (index.column() != 0 || row < 0 || row >= pp->ncells())
return nullptr;
return pp->cell(row);
}
return nullptr;
}
//---------------------------------------------------------
// PaletteTreeModel::findCell
//---------------------------------------------------------
PaletteCellPtr PaletteTreeModel::findCell(const QModelIndex& index)
{
return std::const_pointer_cast<PaletteCell>(const_cast<const PaletteTreeModel*>(this)->findCell(index));
}
//---------------------------------------------------------
// PaletteTreeModel::setPaletteTree
//---------------------------------------------------------
void PaletteTreeModel::setPaletteTree(std::unique_ptr<PaletteTree> newTree)
{
beginResetModel();
_paletteTree = std::move(newTree);
endResetModel();
_treeChanged = false;
}
//---------------------------------------------------------
// PaletteTreeModel::index
//---------------------------------------------------------
QModelIndex PaletteTreeModel::index(int row, int column, const QModelIndex& parent) const
{
if (!hasIndex(row, column, parent))
return QModelIndex();
if (!parent.isValid())
return createIndex(row, column, const_cast<void*>(static_cast<const void*>(_paletteTree.get())));
void* iptr = parent.internalPointer();
if (iptr == _paletteTree.get())
return createIndex(row, column, palettes()[parent.row()].get());
return QModelIndex();
}
//---------------------------------------------------------
// PaletteTreeModel::parent
//---------------------------------------------------------
QModelIndex PaletteTreeModel::parent(const QModelIndex& modelIndex) const
{
void* iptr = modelIndex.internalPointer();
if (iptr == _paletteTree.get())
return QModelIndex();
int row;
if (iptrToPalettePanel(iptr, &row))
return index(row, /* column */ 0, QModelIndex());
return QModelIndex();
}
//---------------------------------------------------------
// PaletteTreeModel::rowCount
//---------------------------------------------------------
int PaletteTreeModel::rowCount(const QModelIndex& parent) const
{
if (!parent.isValid())
return int(palettes().size());
void* iptr = parent.internalPointer();
if (iptr == _paletteTree.get()) {
const int row = parent.row();
if (parent.column() != 0 || row < 0 || row >= int(palettes().size()))
return 0;
return palettes()[row]->ncells();
}
return 0;
}
//---------------------------------------------------------
// PaletteTreeModel::columnCount
//---------------------------------------------------------
int PaletteTreeModel::columnCount(const QModelIndex& parent) const
{
Q_UNUSED(parent);
return 1;
}
//---------------------------------------------------------
// PaletteTreeModel::data
//---------------------------------------------------------
QVariant PaletteTreeModel::data(const QModelIndex& index, int role) const
{
if (const PalettePanel* pp = findPalettePanel(index)) {
switch (role) {
case Qt::DisplayRole:
return pp->translatedName();
case Qt::ToolTipRole:
case Qt::AccessibleTextRole:
return QString("%1 palette").arg(pp->translatedName());
case VisibleRole:
return pp->visible();
case CustomRole:
return pp->custom();
case EditableRole:
return pp->editable();
case GridSizeRole:
return pp->gridSize() * Palette::guiMag();
case DrawGridRole:
return pp->drawGrid();
case PaletteExpandedRole:
return pp->expanded();
// TODO showMore?
case PaletteTypeRole:
return QVariant::fromValue(pp->type());
case PaletteContentTypeRole:
return QVariant::fromValue(pp->contentType());
}
return QVariant();
}
if (PaletteCellConstPtr cell = findCell(index)) {
switch (role) {
case Qt::DisplayRole:
return QVariant(); // Don't show element names in
// item views (i.e. just show icons). If you need
// to know the name, use the ToolTip instead.
case Qt::ToolTipRole:
return cell->translatedName();
case Qt::AccessibleTextRole: {
QString name = cell->translatedName();
ScoreAccessibility::makeReadable(name);
return name;
}
case Qt::DecorationRole: {
qreal extraMag = 1.0;
if (const PalettePanel* pp = iptrToPalettePanel(index.internalPointer()))
extraMag = pp->mag();
return QIcon(new PaletteCellIconEngine(cell, extraMag * Palette::guiMag()));
}
case PaletteCellRole:
return QVariant::fromValue(cell.get());
case VisibleRole:
return cell->visible;
case CustomRole:
return cell->custom;
case EditableRole: {
if (const PalettePanel* pp = iptrToPalettePanel(index.internalPointer()))
return pp->editable();
return false;
}
case MimeDataRole: {
QVariantMap map;
if (cell->element)
map[mimeSymbolFormat] = cell->element->mimeData(QPointF());
map[PaletteCell::mimeDataFormat] = cell->mimeData();
return map;
}
case CellActiveRole:
return cell->active;
default:
break;
}
return QVariant();
}
// data for root item
switch (role) {
case EditableRole:
return true;
default:
break;
}
return QVariant();
}
//---------------------------------------------------------
// PaletteTreeModel::setData
//---------------------------------------------------------
bool PaletteTreeModel::setData(const QModelIndex& index, const QVariant& value, int role)
{
if (PalettePanel* pp = findPalettePanel(index)) {
switch (role) {
case VisibleRole:
if (value.canConvert<bool>()) {
const bool val = value.toBool();
if (val != pp->visible()) {
pp->setVisible(val);
emit dataChanged(index, index, { VisibleRole });
}
return true;
}
return false;
case EditableRole:
if (value.canConvert<bool>()) {
const bool val = value.toBool();
if (val != pp->editable()) {
pp->setEditable(val);
emit dataChanged(index, index, { EditableRole });
// notify cells editability changed too
const QModelIndex childFirstIndex = PaletteTreeModel::index(0, 0, index);
const int rows = rowCount(index);
const QModelIndex childLastIndex = PaletteTreeModel::index(rows - 1, 0, index);
emit dataChanged(childFirstIndex, childLastIndex, { EditableRole });
}
return true;
}
return false;
case PaletteExpandedRole:
if (value.canConvert<bool>()) {
const bool val = value.toBool();
if (val != pp->expanded()) {
const bool singlePalette = preferences.getBool(PREF_APP_USESINGLEPALETTE);
if (singlePalette && val) {
for (auto& palette : palettes())
palette->setExpanded(false);
pp->setExpanded(val);
const QModelIndex parent = index.parent();
const int rows = rowCount(parent);
const QModelIndex first = PaletteTreeModel::index(0, 0, parent);
const QModelIndex last = PaletteTreeModel::index(rows - 1, 0, parent);
emit dataChanged(first, last, { PaletteExpandedRole });
}
else {
pp->setExpanded(val);
emit dataChanged(index, index, { PaletteExpandedRole });
}
}
return true;
}
return false;
case Qt::DisplayRole:
pp->setName(value.toString());
emit dataChanged(index, index, { Qt::DisplayRole, Qt::AccessibleTextRole });
return true;
// case CustomRole:
// if (value.canConvert<bool>()) {
// const bool val = value.toBool();
// if (val != pp->custom()) {
// pp->setCustom(val);
// emit dataChanged(index, index, { CustomRole });
// }
// return true;
// }
// return false;
// case gridSizeRole:
// return pp->gridSize();
// case drawGridRole:
// return pp->drawGrid();
default:
break;
}
return false;
}
if (PaletteCellPtr cell = findCell(index)) {
switch (role) {
// case Qt::DisplayRole:
// case Qt::ToolTipRole:
// or EditRole?
// return cell->name;
case PaletteCellRole: {
PaletteCell* newCell = value.value<PaletteCell*>();
if (!newCell)
return false;
*cell = std::move(*newCell);
emit dataChanged(index, index);
return true;
};
case VisibleRole:
if (value.canConvert<bool>()) {
const bool val = value.toBool();
if (val != cell->visible) {
cell->visible = val;
emit dataChanged(index, index, { VisibleRole });
}
return true;
}
return false;
case CustomRole:
if (value.canConvert<bool>()) {
const bool val = value.toBool();
if (val != cell->custom) {
cell->custom = val;
emit dataChanged(index, index, { CustomRole });
}
return true;
}
return false;
case MimeDataRole: {
const QVariantMap map = value.toMap();
if (map.contains(PaletteCell::mimeDataFormat)) {
const QByteArray cellMimeData = map[PaletteCell::mimeDataFormat].toByteArray();
PaletteCellPtr newCell(PaletteCell::readMimeData(cellMimeData));
if (!newCell)
return false;
*cell = std::move(*newCell);
}
else if (map.contains(mimeSymbolFormat)) {
const QByteArray elementMimeData = map[mimeSymbolFormat].toByteArray();
*cell = std::move(*PaletteCell::readElementMimeData(elementMimeData));
cell->custom = true; // mark the updated cell custom
}
else {
return false;
}
emit dataChanged(index, index);
return true;
}
default:
break;
}
return false;
}
return false;
}
//---------------------------------------------------------
// PaletteTreeModel::roleNames
//---------------------------------------------------------
QHash<int, QByteArray> PaletteTreeModel::roleNames() const
{
QHash<int, QByteArray> roles(QAbstractItemModel::roleNames());
roles[MimeDataRole] = "mimeData";
roles[GridSizeRole] = "gridSize";
roles[DrawGridRole] = "drawGrid";
roles[CustomRole] = "custom";
roles[EditableRole] = "editable";
roles[PaletteExpandedRole] = "expanded";
roles[CellActiveRole] = "cellActive";
roles[Qt::AccessibleTextRole] = "accessibleText";
return roles;
}
//---------------------------------------------------------
// PaletteTreeModel::flags
//---------------------------------------------------------
Qt::ItemFlags PaletteTreeModel::flags(const QModelIndex& index) const
{
return QAbstractItemModel::flags(index) | Qt::ItemIsDragEnabled;
}
//---------------------------------------------------------
// PaletteTreeModel::supportedDropActions
//---------------------------------------------------------
Qt::DropActions PaletteTreeModel::supportedDropActions() const
{
return Qt::DropActions(Qt::CopyAction | Qt::MoveAction);
}
//---------------------------------------------------------
// PaletteTreeModel::mimeData
//---------------------------------------------------------
QMimeData* PaletteTreeModel::mimeData(const QModelIndexList& indexes) const
{
QMimeData* mime = QAbstractItemModel::mimeData(indexes); // TODO: needed or use only "our" MIME data?
if (indexes.empty() || indexes.size() > 1)
return mime;
if (const PalettePanel* pp = findPalettePanel(indexes[0])) {
mime->setData(PalettePanel::mimeDataFormat, pp->mimeData());
}
else if (PaletteCellConstPtr cell = findCell(indexes[0])) {
mime->setData(mimeSymbolFormat, cell->element->mimeData(QPointF()));
}
return mime;
}
//---------------------------------------------------------
// PaletteTreeModel::mimeTypes
//---------------------------------------------------------
QStringList PaletteTreeModel::mimeTypes() const
{
QStringList types = QAbstractItemModel::mimeTypes();
types << mimeSymbolFormat;
return types;
}
//---------------------------------------------------------
// PaletteTreeModel::canDropMimeData
//---------------------------------------------------------
bool PaletteTreeModel::canDropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent) const
{
Q_UNUSED(column);
if (!parent.isValid())
return (action == Qt::CopyAction) && data->hasFormat(PalettePanel::mimeDataFormat);
if (const PalettePanel* pp = findPalettePanel(parent)) {
if (row < 0 || row > pp->ncells())
return false;
if (data->hasFormat(PaletteCell::mimeDataFormat))
return action & (Qt::CopyAction | Qt::MoveAction);
else if (data->hasFormat(mimeSymbolFormat))
return action == Qt::CopyAction;
}
return false;
}
//---------------------------------------------------------
// PaletteTreeModel::dropMimeData
//---------------------------------------------------------
bool PaletteTreeModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent)
{
Q_UNUSED(column); // when dropping at the end of palette, column == -1. Probably an effect of proxy models
if (!parent.isValid()) {
if (action != Qt::CopyAction || !data->hasFormat(PalettePanel::mimeDataFormat))
return false;
if (row < 0 || row > int(palettes().size()))
return false;
auto panel = PalettePanel::readMimeData(data->data(PalettePanel::mimeDataFormat));
if (!panel)
return false;
beginInsertRows(parent, row, row);
palettes().insert(palettes().begin() + row, std::move(panel));
endInsertRows();
return true;
}
if (PalettePanel* pp = findPalettePanel(parent)) {
if (row < 0 || row > pp->ncells())
return false;
PaletteCellPtr cell;
if (data->hasFormat(PaletteCell::mimeDataFormat)) {
cell = PaletteCell::readMimeData(data->data(PaletteCell::mimeDataFormat));
if (action == Qt::CopyAction)
cell->custom = true;
}
else if (data->hasFormat(mimeSymbolFormat)) {
cell = PaletteCell::readElementMimeData(data->data(mimeSymbolFormat));
cell->custom = true; // the cell is created by dropping an element so it is custom
}
if (!cell)
return false;
beginInsertRows(parent, row, row);
pp->insertCell(row, std::move(cell));
endInsertRows();
return true;
}
return false;
}
//---------------------------------------------------------
// PaletteTreeModel::moveRows
//---------------------------------------------------------
bool PaletteTreeModel::moveRows(const QModelIndex& sourceParent, int sourceRow, int count, const QModelIndex& destinationParent, int destinationChild)
{
const bool sameParent = sourceParent == destinationParent;
if (!sourceParent.isValid()) {
// moving palette panels
if (sourceRow + count > int(palettes().size()) || destinationChild >= int(palettes().size()))
return false;
if (!sameParent) {
// Cannot move between different parents, at least for now
// TODO: reconsider?
return false;
}
// The moved rows are considered to be inserted *before* destinationRow,
// so if we want to move a row down in the list within the same parent
// then we should increment the destinationChild index.
const int destinationRow = (destinationChild >= sourceRow) ? destinationChild + 1 : destinationChild;
if (sameParent && sourceRow == destinationRow)
return false;
std::vector<std::unique_ptr<PalettePanel>> movedPanels;
auto srcBegin = palettes().begin() + sourceRow;
auto srcEnd = srcBegin + count;
// As of Qt 5.12, Qt proxy models rebuild the entire index mapping if
// layoutChanged() gets emitted (i.e. if begin/endMoveRows() gets called).
// Performance is much better when doing remove + insert rows instead.
beginRemoveRows(sourceParent, sourceRow, sourceRow + count - 1);
movedPanels.reserve(count);
movedPanels.insert(movedPanels.end(), std::make_move_iterator(srcBegin), std::make_move_iterator(srcEnd));
palettes().erase(srcBegin, srcEnd);
endRemoveRows();
const int destIdx = (destinationRow < sourceRow) ? destinationRow : (destinationRow - count);
auto dest = palettes().begin() + destIdx;
beginInsertRows(destinationParent, destIdx, destIdx + count - 1);
palettes().insert(dest, std::make_move_iterator(movedPanels.begin()), std::make_move_iterator(movedPanels.end()));
endInsertRows();
return true;
}
PalettePanel* sourcePanel = findPalettePanel(sourceParent);
PalettePanel* destPanel = sameParent ? sourcePanel : findPalettePanel(destinationParent);
if (sourcePanel && destPanel) {
// moving palette cells
if (sourceRow + count > sourcePanel->ncells() || destinationChild > destPanel->ncells())
return false;
// The moved rows are considered to be inserted *before* destinationRow,
// so if we want to move a row down in the list within the same parent
// then we should increment the destinationChild index.
const int destinationRow = (sameParent && destinationChild >= sourceRow) ? destinationChild + 1 : destinationChild;
if (sameParent && sourceRow == destinationRow)
return false;
// As of Qt 5.12, Qt proxy models rebuild the entire index mapping if
// layoutChanged() gets emitted (i.e. if begin/endMoveRows() gets called).
// Performance is much better when doing remove + insert rows instead.
beginRemoveRows(sourceParent, sourceRow, sourceRow + count - 1);
auto movedCells(sourcePanel->takeCells(sourceRow, count));
endRemoveRows();
const int destIdx = (sameParent && destinationRow >= sourceRow) ? (destinationRow - count) : destinationRow;
beginInsertRows(destinationParent, destIdx, destIdx + count - 1);
destPanel->insertCells(destIdx, std::move(movedCells));
endInsertRows();
return true;
}
return false;
}
//---------------------------------------------------------
// PaletteTreeModel::removeRows
//---------------------------------------------------------
bool PaletteTreeModel::removeRows(int row, int count, const QModelIndex& parent)
{
if (!parent.isValid()) {
// removing palette panels
if (row < 0 || row + count > int(palettes().size()))
return false;
beginRemoveRows(parent, row, row + count - 1);
auto rangeBegin = palettes().begin() + row;
auto rangeEnd = rangeBegin + count;
palettes().erase(rangeBegin, rangeEnd);
endRemoveRows();
return true;
}
if (PalettePanel* panel = findPalettePanel(parent)) {
// removing palette cells
if (row < 0 || row + count > panel->ncells())
return false;
beginRemoveRows(parent, row, row + count - 1);
panel->takeCells(row, count);
endRemoveRows();
return true;
}
return false;
}
//---------------------------------------------------------
// PaletteTreeModel::insertRows
//---------------------------------------------------------
bool PaletteTreeModel::insertRows(int row, int count, const QModelIndex& parent)
{
if (!parent.isValid()) {
// inserting palette panels
if (row < 0 || row > int(palettes().size()))
return false;
beginInsertRows(parent, row, row + count - 1);
for (int i = 0; i < count; ++i) {
std::unique_ptr<PalettePanel> p(new PalettePanel(PalettePanel::Type::Custom));
p->setName(QT_TRANSLATE_NOOP("Palette", "Custom"));
p->setGrid(QSize(48, 48));
p->setExpanded(true);
palettes().insert(palettes().begin() + row, std::move(p));
}
endInsertRows();
return true;
}
if (PalettePanel* panel = findPalettePanel(parent)) {
// inserting palette cells
if (row < 0 || row > panel->ncells())
return false;
beginInsertRows(parent, row, row + count - 1);
for (int i = 0; i < count; ++i)
panel->insertCell(row, PaletteCellPtr(new PaletteCell));
endInsertRows();
return true;
}
return false;
}
//---------------------------------------------------------
// PaletteTreeModel::insertPalettePanel
//---------------------------------------------------------
bool PaletteTreeModel::insertPalettePanel(std::unique_ptr<PalettePanel> pp, int row, const QModelIndex& parent)
{
if (row < 0 || row > int(palettes().size()) || parent != QModelIndex())
return false;
beginInsertRows(parent, row, row);
palettes().insert(palettes().begin() + row, std::move(pp));
endInsertRows();
return true;
}
//---------------------------------------------------------
// PaletteTreeModel::updateCellsState
//---------------------------------------------------------
void PaletteTreeModel::updateCellsState(const Selection& sel)
{
const ChordRest* cr = sel.firstChordRest();
const Beam::Mode bm = cr ? cr->beamMode() : Beam::Mode::NONE;
const IconType beamIconType = Beam::iconType(bm);
bool deactivateAll = !cr;
for (Element* e : sel.elements()) {
if (e->isNote())
e = e->parent();
if (e->isChordRest()) {
if (toChordRest(e)->beamMode() != bm)
deactivateAll = true;
}
}
const size_t npalettes = palettes().size();
for (size_t row = 0; row < npalettes; ++row) {
PalettePanel* palette = palettes()[row].get();
// TODO: should this be turned on for all palettes?
if (palette->type() != PalettePanel::Type::Beam)
continue;
for (int ci = 0; ci < palette->ncells(); ++ci) {
PaletteCellPtr cell = palette->cell(ci);
if (deactivateAll)
cell->active = false;
else if (cell->element && cell->element->isIcon()) {
const Icon* icon = toIcon(cell->element.get());
cell->active = (icon->iconType() == beamIconType);
}
}
const QModelIndex parent = index(int(row), 0, QModelIndex());
const QModelIndex first = index(0, 0, parent);
const QModelIndex last = index(palette->ncells() - 1, 0, parent);
emit dataChanged(first, last, { CellActiveRole });
}
}
//---------------------------------------------------------
// PaletteTreeModel::retranslate
//---------------------------------------------------------
void PaletteTreeModel::retranslate()
{
_paletteTree->retranslate();
}
//---------------------------------------------------------
// PaletteTreeModel::findPaletteCell
//---------------------------------------------------------
QModelIndex PaletteTreeModel::findPaletteCell(const PaletteCell& cell, const QModelIndex& parent) const
{
if (const PalettePanel* pp = findPalettePanel(parent)) {
const int idx = pp->findPaletteCell(cell);
if (idx == -1)
return QModelIndex();
return index(idx, /* column */ 0, parent);
}
return QModelIndex();
}
//---------------------------------------------------------
// PaletteTreeModel::match
/// Currently only searching for a given palette cell is
/// implemented, for anything else the corresponding
/// member function of QAbstractItemModel is used.
//---------------------------------------------------------
QModelIndexList PaletteTreeModel::match(const QModelIndex& start, int role, const QVariant& value, int hits, Qt::MatchFlags flags) const
{
if (role != PaletteCellRole || flags != Qt::MatchExactly || hits != 1
|| !value.canConvert<const PaletteCell*>()
|| !findPalettePanel(start.parent())
)
return QAbstractItemModel::match(start, role, value, hits, flags);
const PaletteCell* cell = value.value<const PaletteCell*>();
if (!cell)
return QModelIndexList();
return QModelIndexList({ findPaletteCell(*cell, start.parent()) });
}
//---------------------------------------------------------
// PaletteTreeModel::itemDataChanged
//---------------------------------------------------------
void PaletteTreeModel::itemDataChanged(const QModelIndex& idx)
{
emit dataChanged(idx, idx);
if (findPalettePanel(idx)) {
// palette cells appearance depends on palette settings
const QModelIndex childFirstIndex = index(0, 0, idx);
const int rows = rowCount(idx);
const QModelIndex childLastIndex = index(rows - 1, 0, idx);
emit dataChanged(childFirstIndex, childLastIndex, { Qt::DecorationRole });
}
}
//---------------------------------------------------------
// PaletteCellFilter::addChainedFilter
/// Ownership over the added filter is passed to this
/// filter.
//---------------------------------------------------------
void PaletteCellFilter::addChainedFilter(PaletteCellFilter* newFilter)
{
PaletteCellFilter* f = this;
while (f->chainedFilter)
f = f->chainedFilter;
newFilter->setParent(f);
f->chainedFilter = newFilter;
connect(newFilter, &PaletteCellFilter::filterChanged, f, &PaletteCellFilter::filterChanged);
}
//---------------------------------------------------------
// PaletteCellFilter::accept
//---------------------------------------------------------
bool PaletteCellFilter::accept(const PaletteCell& cell) const
{
const PaletteCellFilter* f = this;
while (f) {
if (!f->acceptCell(cell))
return false;
f = f->chainedFilter;
}
return true;
}
//---------------------------------------------------------
// PaletteCellFilter::connectToModel
//---------------------------------------------------------
void PaletteCellFilter::connectToModel(const QAbstractItemModel* model)
{
// TODO: are all these needed?
// columnsInserted(const QModelIndex &parent, int first, int last)
// columnsMoved(const QModelIndex &parent, int start, int end, const QModelIndex &destination, int column)
// columnsRemoved(const QModelIndex &parent, int first, int last)
connect(model, &QAbstractItemModel::dataChanged, this, &PaletteCellFilter::filterChanged);
// dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles = ...)
connect(model, &QAbstractItemModel::layoutChanged, this, &PaletteCellFilter::filterChanged);
// layoutChanged(const QList<QPersistentModelIndex> &parents = ..., QAbstractItemModel::LayoutChangeHint hint = ...)
connect(model, &QAbstractItemModel::modelReset, this, &PaletteCellFilter::filterChanged);
// modelReset()
connect(model, &QAbstractItemModel::rowsInserted, this, &PaletteCellFilter::filterChanged);
// rowsInserted(const QModelIndex &parent, int first, int last)
connect(model, &QAbstractItemModel::rowsMoved, this, &PaletteCellFilter::filterChanged);
// rowsMoved(const QModelIndex &parent, int start, int end, const QModelIndex &destination, int row)
connect(model, &QAbstractItemModel::rowsRemoved, this, &PaletteCellFilter::filterChanged);
// rowsRemoved(const QModelIndex &parent, int first, int last)
}
//---------------------------------------------------------
// ExcludePaletteCellFilter
//---------------------------------------------------------
class ExcludePaletteCellFilter : public PaletteCellFilter {
const PalettePanel* excludePanel;
const QPersistentModelIndex panelIndex; // filter is valid as long as this index is valid too
public:
ExcludePaletteCellFilter(const PalettePanel* p, QPersistentModelIndex index, QObject* parent = nullptr)
: PaletteCellFilter(parent), excludePanel(p), panelIndex(std::move(index)) {}
bool acceptCell(const PaletteCell& cell) const override
{
return panelIndex.isValid() && -1 == excludePanel->findPaletteCell(cell, /* matchName */ false);
}
};
//---------------------------------------------------------
// PaletteTreeModel::getFilter
/// The ownership of the returned filter is passed to a
/// caller.
//---------------------------------------------------------
PaletteCellFilter* PaletteTreeModel::getFilter(const QModelIndex& index) const
{
if (const PalettePanel* pp = findPalettePanel(index)) {
ExcludePaletteCellFilter* filter = new ExcludePaletteCellFilter(pp, index);
filter->connectToModel(this);
return filter;
}
// TODO: make a filter for a single cell?
return nullptr;
}
//---------------------------------------------------------
// FilterPaletteTreeModel::FilterPaletteTreeModel
//---------------------------------------------------------
FilterPaletteTreeModel::FilterPaletteTreeModel(PaletteCellFilter* filter, PaletteTreeModel* model, QObject* parent)
: QSortFilterProxyModel(parent), cellFilter(filter)