85 lines
No EOL
3 KiB
C++
85 lines
No EOL
3 KiB
C++
#include "explorerview.h"
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#include "explorermodel.h"
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#include "common.h"
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#include "objects/base/instance.h"
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#include "objects/workspace.h"
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#include "qabstractitemmodel.h"
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#include "qaction.h"
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#include "qnamespace.h"
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#include <qitemselectionmodel.h>
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ExplorerView::ExplorerView(QWidget* parent):
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QTreeView(parent),
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model(ExplorerModel(std::dynamic_pointer_cast<Instance>(dataModel))) {
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this->setModel(&model);
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// Disabling the root decoration will cause the expand/collapse chevrons to be hidden too, we don't want that
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// https://stackoverflow.com/a/4687016/16255372
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// this->setRootIsDecorated(false);
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// The branches can be customized like this if you want:
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// this->setStyleSheet(QString("QTreeView::branch { border: none; }"));
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this->setDragDropMode(QAbstractItemView::InternalMove);
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this->setSelectionMode(QAbstractItemView::ExtendedSelection);
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this->setDragEnabled(true);
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this->setAcceptDrops(true);
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this->setDropIndicatorShown(true);
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this->setContextMenuPolicy(Qt::CustomContextMenu);
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// Expand workspace
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this->expand(model.ObjectToIndex(workspace()));
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connect(this, &QTreeView::customContextMenuRequested, this, [&](const QPoint& point) {
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QModelIndex index = this->indexAt(point);
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contextMenu.exec(this->viewport()->mapToGlobal(point));
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});
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connect(selectionModel(), &QItemSelectionModel::selectionChanged, this, [&](const QItemSelection &selected, const QItemSelection &deselected) {
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std::vector<InstanceRefWeak> selectedInstances;
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selectedInstances.reserve(selected.count()); // This doesn't reserve everything, but should enhance things anyway
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for (auto range : selected) {
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for (auto index : range.indexes()) {
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selectedInstances.push_back(reinterpret_cast<Instance*>(index.internalPointer())->weak_from_this());
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}
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}
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::setSelection(selectedInstances, true);
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});
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addSelectionListener([&](auto oldSelection, auto newSelection, bool fromExplorer) {
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// It's from us, ignore it.
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if (fromExplorer) return;
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this->clearSelection();
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for (InstanceRefWeak inst : newSelection) {
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if (inst.expired()) continue;
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QModelIndex index = this->model.ObjectToIndex(inst.lock());
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this->selectionModel()->select(index, QItemSelectionModel::SelectionFlag::Select);
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}
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});
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buildContextMenu();
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}
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ExplorerView::~ExplorerView() {
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}
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void ExplorerView::keyPressEvent(QKeyEvent* event) {
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switch (event->key()) {
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case Qt::Key_Delete:
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actionDelete->trigger();
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break;
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}
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}
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void ExplorerView::buildContextMenu() {
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// This will leak memory. Anyway...
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contextMenu.addAction(this->actionDelete = new QAction(QIcon("assets/icons/editor/delete"), "Delete"));
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connect(actionDelete, &QAction::triggered, this, [&]() {
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QModelIndexList selectedIndexes = this->selectionModel()->selectedIndexes();
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for (QModelIndex index : selectedIndexes) {
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model.fromIndex(index)->SetParent(std::nullopt);
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}
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});
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} |