955 lines
29 KiB
C++
955 lines
29 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* Prism Launcher - Minecraft Launcher
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* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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*
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* Copyright 2013-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "InstanceView.h"
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#include <QAccessible>
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#include <QApplication>
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#include <QCache>
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#include <QDrag>
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#include <QListView>
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#include <QMimeData>
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#include <QMouseEvent>
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#include <QPainter>
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#include <QPersistentModelIndex>
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#include <QScrollBar>
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#include <QtMath>
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#include <QDebug>
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#include "VisualGroup.h"
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#include <Application.h>
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#include <InstanceList.h>
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template <typename T>
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bool listsIntersect(const QList<T>& l1, const QList<T> t2)
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{
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for (auto& item : l1) {
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if (t2.contains(item)) {
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return true;
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}
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}
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return false;
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}
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InstanceView::InstanceView(QWidget* parent) : QAbstractItemView(parent)
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{
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
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setAcceptDrops(true);
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setAutoScroll(true);
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setPaintCat(APPLICATION->settings()->get("TheCat").toBool());
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}
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InstanceView::~InstanceView()
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{
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qDeleteAll(m_groups);
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m_groups.clear();
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}
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void InstanceView::setModel(QAbstractItemModel* model)
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{
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QAbstractItemView::setModel(model);
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connect(model, &QAbstractItemModel::modelReset, this, &InstanceView::modelReset);
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connect(model, &QAbstractItemModel::rowsRemoved, this, &InstanceView::rowsRemoved);
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}
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void InstanceView::dataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight, const QVector<int>& roles)
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{
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scheduleDelayedItemsLayout();
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}
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void InstanceView::rowsInserted(const QModelIndex& parent, int start, int end)
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{
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scheduleDelayedItemsLayout();
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}
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void InstanceView::rowsAboutToBeRemoved(const QModelIndex& parent, int start, int end)
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{
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scheduleDelayedItemsLayout();
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}
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void InstanceView::modelReset()
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{
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scheduleDelayedItemsLayout();
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}
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void InstanceView::rowsRemoved()
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{
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scheduleDelayedItemsLayout();
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}
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void InstanceView::currentChanged(const QModelIndex& current, const QModelIndex& previous)
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{
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QAbstractItemView::currentChanged(current, previous);
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// TODO: for accessibility support, implement+register a factory, steal QAccessibleTable from Qt and return an instance of it for
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// InstanceView.
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#ifndef QT_NO_ACCESSIBILITY
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if (QAccessible::isActive() && current.isValid()) {
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QAccessibleEvent event(this, QAccessible::Focus);
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event.setChild(current.row());
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QAccessible::updateAccessibility(&event);
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}
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#endif /* !QT_NO_ACCESSIBILITY */
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}
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class LocaleString : public QString {
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public:
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LocaleString(const char* s) : QString(s) {}
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LocaleString(const QString& s) : QString(s) {}
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};
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inline bool operator<(const LocaleString& lhs, const LocaleString& rhs)
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{
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return (QString::localeAwareCompare(lhs, rhs) < 0);
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}
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void InstanceView::updateScrollbar()
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{
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int previousScroll = verticalScrollBar()->value();
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if (m_groups.isEmpty()) {
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verticalScrollBar()->setRange(0, 0);
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} else {
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int totalHeight = 0;
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// top margin
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totalHeight += m_categoryMargin;
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int itemScroll = 0;
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for (auto category : m_groups) {
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category->m_verticalPosition = totalHeight;
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totalHeight += category->totalHeight() + m_categoryMargin;
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if (!itemScroll && category->totalHeight() != 0) {
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itemScroll = category->contentHeight() / category->numRows();
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}
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}
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// do not divide by zero
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if (itemScroll == 0)
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itemScroll = 64;
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totalHeight += m_bottomMargin;
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verticalScrollBar()->setSingleStep(itemScroll);
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const int rowsPerPage = qMax(viewport()->height() / itemScroll, 1);
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verticalScrollBar()->setPageStep(rowsPerPage * itemScroll);
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verticalScrollBar()->setRange(0, totalHeight - height());
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}
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verticalScrollBar()->setValue(qMin(previousScroll, verticalScrollBar()->maximum()));
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}
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void InstanceView::updateGeometries()
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{
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geometryCache.clear();
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QMap<LocaleString, VisualGroup*> cats;
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for (int i = 0; i < model()->rowCount(); ++i) {
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const QString groupName = model()->index(i, 0).data(InstanceViewRoles::GroupRole).toString();
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if (!cats.contains(groupName)) {
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VisualGroup* old = this->category(groupName);
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if (old) {
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auto cat = new VisualGroup(old);
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cats.insert(groupName, cat);
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cat->update();
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} else {
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auto cat = new VisualGroup(groupName, this);
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if (fVisibility) {
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cat->collapsed = fVisibility(groupName);
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}
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cats.insert(groupName, cat);
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cat->update();
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}
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}
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}
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qDeleteAll(m_groups);
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m_groups = cats.values();
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updateScrollbar();
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viewport()->update();
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}
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bool InstanceView::isIndexHidden(const QModelIndex& index) const
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{
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VisualGroup* cat = category(index);
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if (cat) {
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return cat->collapsed;
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} else {
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return false;
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}
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}
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VisualGroup* InstanceView::category(const QModelIndex& index) const
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{
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return category(index.data(InstanceViewRoles::GroupRole).toString());
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}
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VisualGroup* InstanceView::category(const QString& cat) const
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{
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for (auto group : m_groups) {
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if (group->text == cat) {
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return group;
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}
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}
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return nullptr;
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}
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VisualGroup* InstanceView::categoryAt(const QPoint& pos, VisualGroup::HitResults& result) const
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{
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for (auto group : m_groups) {
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result = group->hitScan(pos);
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if (result != VisualGroup::NoHit) {
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return group;
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}
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}
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result = VisualGroup::NoHit;
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return nullptr;
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}
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QString InstanceView::groupNameAt(const QPoint& point)
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{
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executeDelayedItemsLayout();
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VisualGroup::HitResults hitresult;
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auto group = categoryAt(point + offset(), hitresult);
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if (group && (hitresult & (VisualGroup::HeaderHit | VisualGroup::BodyHit))) {
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return group->text;
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}
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return QString();
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}
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int InstanceView::calculateItemsPerRow() const
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{
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return qFloor((qreal)(contentWidth()) / (qreal)(itemWidth() + m_spacing));
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}
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int InstanceView::contentWidth() const
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{
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return width() - m_leftMargin - m_rightMargin;
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}
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int InstanceView::itemWidth() const
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{
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return m_itemWidth;
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}
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void InstanceView::mousePressEvent(QMouseEvent* event)
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{
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executeDelayedItemsLayout();
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QPoint visualPos = event->pos();
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QPoint geometryPos = event->pos() + offset();
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QPersistentModelIndex index = indexAt(visualPos);
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m_pressedIndex = index;
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m_pressedAlreadySelected = selectionModel()->isSelected(m_pressedIndex);
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m_pressedPosition = geometryPos;
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VisualGroup::HitResults hitresult;
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m_pressedCategory = categoryAt(geometryPos, hitresult);
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if (m_pressedCategory && hitresult & VisualGroup::CheckboxHit) {
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setState(m_pressedCategory->collapsed ? ExpandingState : CollapsingState);
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event->accept();
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return;
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}
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if (index.isValid() && (index.flags() & Qt::ItemIsEnabled)) {
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if (index != currentIndex()) {
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// FIXME: better!
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m_currentCursorColumn = -1;
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}
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// we disable scrollTo for mouse press so the item doesn't change position
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// when the user is interacting with it (ie. clicking on it)
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bool autoScroll = hasAutoScroll();
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setAutoScroll(false);
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selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
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setAutoScroll(autoScroll);
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QRect rect(visualPos, visualPos);
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setSelection(rect, QItemSelectionModel::ClearAndSelect);
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// signal handlers may change the model
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emit pressed(index);
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} else {
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// Forces a finalize() even if mouse is pressed, but not on a item
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selectionModel()->select(QModelIndex(), QItemSelectionModel::Select);
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}
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}
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void InstanceView::mouseMoveEvent(QMouseEvent* event)
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{
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executeDelayedItemsLayout();
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QPoint topLeft;
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QPoint visualPos = event->pos();
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QPoint geometryPos = event->pos() + offset();
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if (state() == ExpandingState || state() == CollapsingState) {
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return;
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}
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if (state() == DraggingState) {
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topLeft = m_pressedPosition - offset();
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if ((topLeft - event->pos()).manhattanLength() > QApplication::startDragDistance()) {
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m_pressedIndex = QModelIndex();
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startDrag(model()->supportedDragActions());
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setState(NoState);
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stopAutoScroll();
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}
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return;
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}
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if (selectionMode() != SingleSelection) {
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topLeft = m_pressedPosition - offset();
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} else {
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topLeft = geometryPos;
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}
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if (m_pressedIndex.isValid() && (state() != DragSelectingState) && (event->buttons() != Qt::NoButton) && !selectedIndexes().isEmpty()) {
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setState(DraggingState);
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return;
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}
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if ((event->buttons() & Qt::LeftButton) && selectionModel()) {
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setState(DragSelectingState);
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setSelection(QRect(visualPos, visualPos), QItemSelectionModel::ClearAndSelect);
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QModelIndex index = indexAt(visualPos);
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// set at the end because it might scroll the view
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if (index.isValid() && (index != selectionModel()->currentIndex()) && (index.flags() & Qt::ItemIsEnabled)) {
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selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
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}
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}
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}
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void InstanceView::mouseReleaseEvent(QMouseEvent* event)
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{
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executeDelayedItemsLayout();
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QPoint visualPos = event->pos();
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QPoint geometryPos = event->pos() + offset();
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QPersistentModelIndex index = indexAt(visualPos);
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VisualGroup::HitResults hitresult;
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bool click =
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(index == m_pressedIndex && index.isValid()) || (m_pressedCategory && m_pressedCategory == categoryAt(geometryPos, hitresult));
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if (click && m_pressedCategory) {
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if (state() == ExpandingState) {
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m_pressedCategory->collapsed = false;
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emit groupStateChanged(m_pressedCategory->text, false);
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updateGeometries();
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viewport()->update();
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event->accept();
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m_pressedCategory = nullptr;
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setState(NoState);
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return;
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} else if (state() == CollapsingState) {
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m_pressedCategory->collapsed = true;
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emit groupStateChanged(m_pressedCategory->text, true);
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updateGeometries();
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viewport()->update();
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event->accept();
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m_pressedCategory = nullptr;
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setState(NoState);
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return;
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}
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}
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m_ctrlDragSelectionFlag = QItemSelectionModel::NoUpdate;
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setState(NoState);
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if (click) {
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if (event->button() == Qt::LeftButton) {
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emit clicked(index);
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}
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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QStyleOptionViewItem option;
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initViewItemOption(&option);
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#else
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QStyleOptionViewItem option = viewOptions();
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#endif
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if (m_pressedAlreadySelected) {
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option.state |= QStyle::State_Selected;
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}
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if ((model()->flags(index) & Qt::ItemIsEnabled) &&
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style()->styleHint(QStyle::SH_ItemView_ActivateItemOnSingleClick, &option, this)) {
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emit activated(index);
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}
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}
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}
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void InstanceView::mouseDoubleClickEvent(QMouseEvent* event)
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{
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executeDelayedItemsLayout();
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QModelIndex index = indexAt(event->pos());
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if (!index.isValid() || !(index.flags() & Qt::ItemIsEnabled) || (m_pressedIndex != index)) {
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QMouseEvent me(QEvent::MouseButtonPress, event->localPos(), event->windowPos(), event->screenPos(), event->button(),
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event->buttons(), event->modifiers());
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mousePressEvent(&me);
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return;
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}
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// signal handlers may change the model
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QPersistentModelIndex persistent = index;
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emit doubleClicked(persistent);
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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QStyleOptionViewItem option;
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initViewItemOption(&option);
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#else
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QStyleOptionViewItem option = viewOptions();
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#endif
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if ((model()->flags(index) & Qt::ItemIsEnabled) && !style()->styleHint(QStyle::SH_ItemView_ActivateItemOnSingleClick, &option, this)) {
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emit activated(index);
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}
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}
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void InstanceView::setPaintCat(bool visible)
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{
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m_catVisible = visible;
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if (visible)
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m_catPixmap.load(APPLICATION->getCatPack());
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else
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m_catPixmap = QPixmap();
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}
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void InstanceView::paintEvent(QPaintEvent* event)
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{
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executeDelayedItemsLayout();
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QPainter painter(this->viewport());
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if (m_catVisible) {
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int widWidth = this->viewport()->width();
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int widHeight = this->viewport()->height();
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if (m_catPixmap.width() < widWidth)
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widWidth = m_catPixmap.width();
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if (m_catPixmap.height() < widHeight)
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widHeight = m_catPixmap.height();
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auto pixmap = m_catPixmap.scaled(widWidth, widHeight, Qt::KeepAspectRatio);
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QRect rectOfPixmap = pixmap.rect();
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rectOfPixmap.moveBottomRight(this->viewport()->rect().bottomRight());
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painter.drawPixmap(rectOfPixmap.topLeft(), pixmap);
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}
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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QStyleOptionViewItem option;
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initViewItemOption(&option);
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#else
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QStyleOptionViewItem option = viewOptions();
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#endif
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option.widget = this;
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int wpWidth = viewport()->width();
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option.rect.setWidth(wpWidth);
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for (int i = 0; i < m_groups.size(); ++i) {
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VisualGroup* category = m_groups.at(i);
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int y = category->verticalPosition();
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y -= verticalOffset();
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QRect backup = option.rect;
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int height = category->totalHeight();
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option.rect.setTop(y);
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option.rect.setHeight(height);
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option.rect.setLeft(m_leftMargin);
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option.rect.setRight(wpWidth - m_rightMargin);
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category->drawHeader(&painter, option);
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y += category->totalHeight() + m_categoryMargin;
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option.rect = backup;
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}
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for (int i = 0; i < model()->rowCount(); ++i) {
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const QModelIndex index = model()->index(i, 0);
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if (isIndexHidden(index)) {
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continue;
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}
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Qt::ItemFlags flags = index.flags();
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option.rect = visualRect(index);
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option.features |= QStyleOptionViewItem::WrapText;
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if (flags & Qt::ItemIsSelectable && selectionModel()->isSelected(index)) {
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option.state |= selectionModel()->isSelected(index) ? QStyle::State_Selected : QStyle::State_None;
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} else {
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option.state &= ~QStyle::State_Selected;
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}
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option.state |= (index == currentIndex()) ? QStyle::State_HasFocus : QStyle::State_None;
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if (!(flags & Qt::ItemIsEnabled)) {
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option.state &= ~QStyle::State_Enabled;
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}
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itemDelegate()->paint(&painter, option, index);
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}
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/*
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* Drop indicators for manual reordering...
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*/
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#if 0
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if (!m_lastDragPosition.isNull())
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{
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std::pair<VisualGroup *, VisualGroup::HitResults> pair = rowDropPos(m_lastDragPosition);
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VisualGroup *category = pair.first;
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VisualGroup::HitResults row = pair.second;
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if (category)
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{
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int internalRow = row - category->firstItemIndex;
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QLine line;
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if (internalRow >= category->numItems())
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{
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QRect toTheRightOfRect = visualRect(category->lastItem());
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line = QLine(toTheRightOfRect.topRight(), toTheRightOfRect.bottomRight());
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}
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else
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{
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QRect toTheLeftOfRect = visualRect(model()->index(row, 0));
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line = QLine(toTheLeftOfRect.topLeft(), toTheLeftOfRect.bottomLeft());
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}
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painter.save();
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painter.setPen(QPen(Qt::black, 3));
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painter.drawLine(line);
|
|
painter.restore();
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void InstanceView::resizeEvent(QResizeEvent* event)
|
|
{
|
|
int newItemsPerRow = calculateItemsPerRow();
|
|
if (newItemsPerRow != m_currentItemsPerRow) {
|
|
m_currentCursorColumn = -1;
|
|
m_currentItemsPerRow = newItemsPerRow;
|
|
updateGeometries();
|
|
} else {
|
|
updateScrollbar();
|
|
}
|
|
}
|
|
|
|
void InstanceView::dragEnterEvent(QDragEnterEvent* event)
|
|
{
|
|
executeDelayedItemsLayout();
|
|
|
|
if (!isDragEventAccepted(event)) {
|
|
return;
|
|
}
|
|
m_lastDragPosition = event->pos() + offset();
|
|
viewport()->update();
|
|
event->accept();
|
|
}
|
|
|
|
void InstanceView::dragMoveEvent(QDragMoveEvent* event)
|
|
{
|
|
executeDelayedItemsLayout();
|
|
|
|
if (!isDragEventAccepted(event)) {
|
|
return;
|
|
}
|
|
m_lastDragPosition = event->pos() + offset();
|
|
viewport()->update();
|
|
event->accept();
|
|
}
|
|
|
|
void InstanceView::dragLeaveEvent(QDragLeaveEvent* event)
|
|
{
|
|
executeDelayedItemsLayout();
|
|
|
|
m_lastDragPosition = QPoint();
|
|
viewport()->update();
|
|
}
|
|
|
|
void InstanceView::dropEvent(QDropEvent* event)
|
|
{
|
|
executeDelayedItemsLayout();
|
|
|
|
m_lastDragPosition = QPoint();
|
|
|
|
stopAutoScroll();
|
|
setState(NoState);
|
|
|
|
auto mimedata = event->mimeData();
|
|
|
|
if (event->source() == this) {
|
|
if (event->possibleActions() & Qt::MoveAction) {
|
|
std::pair<VisualGroup*, VisualGroup::HitResults> dropPos = rowDropPos(event->pos());
|
|
const VisualGroup* group = dropPos.first;
|
|
auto hitresult = dropPos.second;
|
|
|
|
if (hitresult == VisualGroup::HitResult::NoHit) {
|
|
viewport()->update();
|
|
return;
|
|
}
|
|
auto instanceId = QString::fromUtf8(mimedata->data("application/x-instanceid"));
|
|
auto instanceList = APPLICATION->instances().get();
|
|
instanceList->setInstanceGroup(instanceId, group->text);
|
|
event->setDropAction(Qt::MoveAction);
|
|
event->accept();
|
|
|
|
updateGeometries();
|
|
viewport()->update();
|
|
}
|
|
return;
|
|
}
|
|
|
|
// check if the action is supported
|
|
if (!mimedata) {
|
|
return;
|
|
}
|
|
|
|
// files dropped from outside?
|
|
if (mimedata->hasUrls()) {
|
|
auto urls = mimedata->urls();
|
|
event->accept();
|
|
emit droppedURLs(urls);
|
|
}
|
|
}
|
|
|
|
void InstanceView::startDrag(Qt::DropActions supportedActions)
|
|
{
|
|
executeDelayedItemsLayout();
|
|
|
|
QModelIndexList indexes = selectionModel()->selectedIndexes();
|
|
if (indexes.count() == 0)
|
|
return;
|
|
|
|
QMimeData* data = model()->mimeData(indexes);
|
|
if (!data) {
|
|
return;
|
|
}
|
|
QRect rect;
|
|
QPixmap pixmap = renderToPixmap(indexes, &rect);
|
|
QDrag* drag = new QDrag(this);
|
|
drag->setPixmap(pixmap);
|
|
drag->setMimeData(data);
|
|
drag->setHotSpot(m_pressedPosition - rect.topLeft());
|
|
Qt::DropAction defaultDropAction = Qt::IgnoreAction;
|
|
if (this->defaultDropAction() != Qt::IgnoreAction && (supportedActions & this->defaultDropAction())) {
|
|
defaultDropAction = this->defaultDropAction();
|
|
}
|
|
/*auto action = */
|
|
drag->exec(supportedActions, defaultDropAction);
|
|
}
|
|
|
|
QRect InstanceView::visualRect(const QModelIndex& index) const
|
|
{
|
|
const_cast<InstanceView*>(this)->executeDelayedItemsLayout();
|
|
|
|
return geometryRect(index).translated(-offset());
|
|
}
|
|
|
|
QRect InstanceView::geometryRect(const QModelIndex& index) const
|
|
{
|
|
const_cast<InstanceView*>(this)->executeDelayedItemsLayout();
|
|
|
|
if (!index.isValid() || isIndexHidden(index) || index.column() > 0) {
|
|
return QRect();
|
|
}
|
|
|
|
int row = index.row();
|
|
if (geometryCache.contains(row)) {
|
|
return *geometryCache[row];
|
|
}
|
|
|
|
const VisualGroup* cat = category(index);
|
|
QPair<int, int> pos = cat->positionOf(index);
|
|
int x = pos.first;
|
|
// int y = pos.second;
|
|
|
|
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
|
|
QStyleOptionViewItem option;
|
|
initViewItemOption(&option);
|
|
#else
|
|
QStyleOptionViewItem option = viewOptions();
|
|
#endif
|
|
|
|
QRect out;
|
|
out.setTop(cat->verticalPosition() + cat->headerHeight() + 5 + cat->rowTopOf(index));
|
|
out.setLeft(m_spacing + x * (itemWidth() + m_spacing));
|
|
out.setSize(itemDelegate()->sizeHint(option, index));
|
|
geometryCache.insert(row, new QRect(out));
|
|
return out;
|
|
}
|
|
|
|
QModelIndex InstanceView::indexAt(const QPoint& point) const
|
|
{
|
|
const_cast<InstanceView*>(this)->executeDelayedItemsLayout();
|
|
|
|
for (int i = 0; i < model()->rowCount(); ++i) {
|
|
QModelIndex index = model()->index(i, 0);
|
|
if (visualRect(index).contains(point)) {
|
|
return index;
|
|
}
|
|
}
|
|
return QModelIndex();
|
|
}
|
|
|
|
void InstanceView::setSelection(const QRect& rect, const QItemSelectionModel::SelectionFlags commands)
|
|
{
|
|
executeDelayedItemsLayout();
|
|
|
|
for (int i = 0; i < model()->rowCount(); ++i) {
|
|
QModelIndex index = model()->index(i, 0);
|
|
QRect itemRect = visualRect(index);
|
|
if (itemRect.intersects(rect)) {
|
|
selectionModel()->select(index, commands);
|
|
update(itemRect.translated(-offset()));
|
|
}
|
|
}
|
|
}
|
|
|
|
QPixmap InstanceView::renderToPixmap(const QModelIndexList& indices, QRect* r) const
|
|
{
|
|
Q_ASSERT(r);
|
|
auto paintPairs = draggablePaintPairs(indices, r);
|
|
if (paintPairs.isEmpty()) {
|
|
return QPixmap();
|
|
}
|
|
QPixmap pixmap(r->size());
|
|
pixmap.fill(Qt::transparent);
|
|
QPainter painter(&pixmap);
|
|
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
|
|
QStyleOptionViewItem option;
|
|
initViewItemOption(&option);
|
|
#else
|
|
QStyleOptionViewItem option = viewOptions();
|
|
#endif
|
|
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<std::pair<QRect, QModelIndex>> InstanceView::draggablePaintPairs(const QModelIndexList& indices, QRect* r) const
|
|
{
|
|
Q_ASSERT(r);
|
|
QRect& rect = *r;
|
|
QList<std::pair<QRect, QModelIndex>> ret;
|
|
for (int i = 0; i < indices.count(); ++i) {
|
|
const QModelIndex& index = indices.at(i);
|
|
const QRect current = geometryRect(index);
|
|
ret += std::make_pair(current, index);
|
|
rect |= current;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
bool InstanceView::isDragEventAccepted(QDropEvent* event)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
std::pair<VisualGroup*, VisualGroup::HitResults> InstanceView::rowDropPos(const QPoint& pos)
|
|
{
|
|
VisualGroup::HitResults hitresult;
|
|
auto group = categoryAt(pos + offset(), hitresult);
|
|
return std::make_pair(group, hitresult);
|
|
}
|
|
|
|
QPoint InstanceView::offset() const
|
|
{
|
|
return QPoint(horizontalOffset(), verticalOffset());
|
|
}
|
|
|
|
QRegion InstanceView::visualRegionForSelection(const QItemSelection& selection) const
|
|
{
|
|
QRegion region;
|
|
for (auto& range : selection) {
|
|
int start_row = range.top();
|
|
int end_row = range.bottom();
|
|
for (int row = start_row; row <= end_row; ++row) {
|
|
int start_column = range.left();
|
|
int end_column = range.right();
|
|
for (int column = start_column; column <= end_column; ++column) {
|
|
QModelIndex index = model()->index(row, column, rootIndex());
|
|
region += visualRect(index); // OK
|
|
}
|
|
}
|
|
}
|
|
return region;
|
|
}
|
|
|
|
QModelIndex InstanceView::moveCursor(QAbstractItemView::CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
|
|
{
|
|
auto current = currentIndex();
|
|
if (!current.isValid()) {
|
|
return current;
|
|
}
|
|
auto cat = category(current);
|
|
int group_index = m_groups.indexOf(cat);
|
|
if (group_index < 0)
|
|
return current;
|
|
|
|
QPair<int, int> pos = cat->positionOf(current);
|
|
int column = pos.first;
|
|
int row = pos.second;
|
|
if (m_currentCursorColumn < 0) {
|
|
m_currentCursorColumn = column;
|
|
}
|
|
switch (cursorAction) {
|
|
case MoveUp: {
|
|
if (row == 0) {
|
|
int prevgroupindex = group_index - 1;
|
|
while (prevgroupindex >= 0) {
|
|
auto prevgroup = m_groups[prevgroupindex];
|
|
if (prevgroup->collapsed) {
|
|
prevgroupindex--;
|
|
continue;
|
|
}
|
|
int newRow = prevgroup->numRows() - 1;
|
|
int newRowSize = prevgroup->rows[newRow].size();
|
|
int newColumn = m_currentCursorColumn;
|
|
if (m_currentCursorColumn >= newRowSize) {
|
|
newColumn = newRowSize - 1;
|
|
}
|
|
return prevgroup->rows[newRow][newColumn];
|
|
}
|
|
} else {
|
|
int newRow = row - 1;
|
|
int newRowSize = cat->rows[newRow].size();
|
|
int newColumn = m_currentCursorColumn;
|
|
if (m_currentCursorColumn >= newRowSize) {
|
|
newColumn = newRowSize - 1;
|
|
}
|
|
return cat->rows[newRow][newColumn];
|
|
}
|
|
return current;
|
|
}
|
|
case MoveDown: {
|
|
if (row == cat->rows.size() - 1) {
|
|
int nextgroupindex = group_index + 1;
|
|
while (nextgroupindex < m_groups.size()) {
|
|
auto nextgroup = m_groups[nextgroupindex];
|
|
if (nextgroup->collapsed) {
|
|
nextgroupindex++;
|
|
continue;
|
|
}
|
|
int newRowSize = nextgroup->rows[0].size();
|
|
int newColumn = m_currentCursorColumn;
|
|
if (m_currentCursorColumn >= newRowSize) {
|
|
newColumn = newRowSize - 1;
|
|
}
|
|
return nextgroup->rows[0][newColumn];
|
|
}
|
|
} else {
|
|
int newRow = row + 1;
|
|
int newRowSize = cat->rows[newRow].size();
|
|
int newColumn = m_currentCursorColumn;
|
|
if (m_currentCursorColumn >= newRowSize) {
|
|
newColumn = newRowSize - 1;
|
|
}
|
|
return cat->rows[newRow][newColumn];
|
|
}
|
|
return current;
|
|
}
|
|
case MoveLeft: {
|
|
if (column > 0) {
|
|
m_currentCursorColumn = column - 1;
|
|
return cat->rows[row][column - 1];
|
|
}
|
|
// TODO: moving to previous line
|
|
return current;
|
|
}
|
|
case MoveRight: {
|
|
if (column < cat->rows[row].size() - 1) {
|
|
m_currentCursorColumn = column + 1;
|
|
return cat->rows[row][column + 1];
|
|
}
|
|
// TODO: moving to next line
|
|
return current;
|
|
}
|
|
case MoveHome: {
|
|
m_currentCursorColumn = 0;
|
|
return cat->rows[row][0];
|
|
}
|
|
case MoveEnd: {
|
|
auto last = cat->rows[row].size() - 1;
|
|
m_currentCursorColumn = last;
|
|
return cat->rows[row][last];
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return current;
|
|
}
|
|
|
|
int InstanceView::horizontalOffset() const
|
|
{
|
|
return horizontalScrollBar()->value();
|
|
}
|
|
|
|
int InstanceView::verticalOffset() const
|
|
{
|
|
return verticalScrollBar()->value();
|
|
}
|
|
|
|
void InstanceView::scrollContentsBy(int dx, int dy)
|
|
{
|
|
scrollDirtyRegion(dx, dy);
|
|
viewport()->scroll(dx, dy);
|
|
}
|
|
|
|
void InstanceView::scrollTo(const QModelIndex& index, ScrollHint hint)
|
|
{
|
|
if (!index.isValid())
|
|
return;
|
|
|
|
const QRect rect = visualRect(index);
|
|
if (hint == EnsureVisible && viewport()->rect().contains(rect)) {
|
|
viewport()->update(rect);
|
|
return;
|
|
}
|
|
|
|
verticalScrollBar()->setValue(verticalScrollToValue(index, rect, hint));
|
|
}
|
|
|
|
int InstanceView::verticalScrollToValue(const QModelIndex& index, const QRect& rect, QListView::ScrollHint hint) const
|
|
{
|
|
const QRect area = viewport()->rect();
|
|
const bool above = (hint == QListView::EnsureVisible && rect.top() < area.top());
|
|
const bool below = (hint == QListView::EnsureVisible && rect.bottom() > area.bottom());
|
|
|
|
int verticalValue = verticalScrollBar()->value();
|
|
QRect adjusted = rect.adjusted(-spacing(), -spacing(), spacing(), spacing());
|
|
if (hint == QListView::PositionAtTop || above)
|
|
verticalValue += adjusted.top();
|
|
else if (hint == QListView::PositionAtBottom || below)
|
|
verticalValue += qMin(adjusted.top(), adjusted.bottom() - area.height() + 1);
|
|
else if (hint == QListView::PositionAtCenter)
|
|
verticalValue += adjusted.top() - ((area.height() - adjusted.height()) / 2);
|
|
return verticalValue;
|
|
}
|