PrismLauncher/launcher/ui/instanceview/VisualGroup.h

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// SPDX-License-Identifier: GPL-3.0-only
/*
* Prism Launcher - Minecraft Launcher
* Copyright (C) 2023 Tayou <git@tayou.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* 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, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 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.
*/
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#pragma once
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#include <QRect>
#include <QString>
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#include <QStyleOption>
#include <QVector>
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class InstanceView;
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class QPainter;
class QModelIndex;
struct VisualRow {
QList<QModelIndex> items;
int height = 0;
int top = 0;
inline int size() const { return items.size(); }
inline QModelIndex& operator[](int i) { return items[i]; }
};
struct VisualGroup {
/* constructors */
VisualGroup(QString text, InstanceView* view);
explicit VisualGroup(const VisualGroup* other);
/* data */
InstanceView* view = nullptr;
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QString text;
bool collapsed = false;
QVector<VisualRow> rows;
int firstItemIndex = 0;
int m_verticalPosition = 0;
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/* logic */
/// update the internal list of items and flow them into the rows.
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void update();
/// draw the header at y-position.
void drawHeader(QPainter* painter, const QStyleOptionViewItem& option) const;
/// height of the group, in total. includes a small bit of padding.
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int totalHeight() const;
/// height of the group header, in pixels
static int headerHeight();
/// height of the group content, in pixels
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int contentHeight() const;
/// the number of visual rows this group has
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int numRows() const;
/// actually calculate the above value
int calculateNumRows() const;
/// the height at which this group starts, in pixels
int verticalPosition() const;
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/// relative geometry - top of the row of the given item
int rowTopOf(const QModelIndex& index) const;
/// height of the row of the given item
int rowHeightOf(const QModelIndex& index) const;
/// x/y position of the given item inside the group (in items!)
QPair<int, int> positionOf(const QModelIndex& index) const;
enum HitResult { NoHit = 0x0, TextHit = 0x1, CheckboxHit = 0x2, HeaderHit = 0x4, BodyHit = 0x8 };
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Q_DECLARE_FLAGS(HitResults, HitResult)
/// shoot! BANG! what did we hit?
HitResults hitScan(const QPoint& pos) const;
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QList<QModelIndex> items() const;
};
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Q_DECLARE_OPERATORS_FOR_FLAGS(VisualGroup::HitResults)