sneedmc/launcher/ui/instanceview/VisualGroup.h

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/* 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 <QString>
#include <QRect>
#include <QVector>
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#include <QStyleOption>
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class InstanceView;
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class QPainter;
class QModelIndex;
struct VisualRow
{
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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
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{
/* constructors */
VisualGroup(const QString &text, InstanceView *view);
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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 */
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/// update the internal list of items and flow them into the rows.
void update();
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/// draw the header at y-position.
void drawHeader(QPainter *painter, const QStyleOptionViewItem &option);
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/// height of the group, in total. includes a small bit of padding.
int totalHeight() const;
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/// height of the group header, in pixels
int headerHeight() const;
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/// height of the group content, in pixels
int contentHeight() const;
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/// the number of visual rows this group has
int numRows() const;
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/// actually calculate the above value
int calculateNumRows() const;
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/// 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;
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/// height of the row of the given item
int rowHeightOf(const QModelIndex &index) const;
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/// x/y position of the given item inside the group (in items!)
QPair<int, int> positionOf(const QModelIndex &index) const;
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enum HitResult
{
NoHit = 0x0,
TextHit = 0x1,
CheckboxHit = 0x2,
HeaderHit = 0x4,
BodyHit = 0x8
};
Q_DECLARE_FLAGS(HitResults, HitResult)
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/// shoot! BANG! what did we hit?
HitResults hitScan (const QPoint &pos) const;
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QList<QModelIndex> items() const;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS(VisualGroup::HitResults)