318 lines
9.0 KiB
C++
318 lines
9.0 KiB
C++
/* Copyright 2013-2018 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 "VisualGroup.h"
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#include <QModelIndex>
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#include <QPainter>
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#include <QtMath>
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#include <QApplication>
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#include <QDebug>
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#include "GroupView.h"
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VisualGroup::VisualGroup(const QString &text, GroupView *view) : view(view), text(text), collapsed(false)
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{
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}
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VisualGroup::VisualGroup(const VisualGroup *other)
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: view(other->view), text(other->text), collapsed(other->collapsed)
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{
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}
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void VisualGroup::update()
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{
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auto temp_items = items();
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auto itemsPerRow = view->itemsPerRow();
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int numRows = qMax(1, qCeil((qreal)temp_items.size() / (qreal)itemsPerRow));
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rows = QVector<VisualRow>(numRows);
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int maxRowHeight = 0;
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int positionInRow = 0;
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int currentRow = 0;
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int offsetFromTop = 0;
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for (auto item: temp_items)
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{
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if(positionInRow == itemsPerRow)
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{
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rows[currentRow].height = maxRowHeight;
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rows[currentRow].top = offsetFromTop;
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currentRow ++;
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offsetFromTop += maxRowHeight + 5;
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positionInRow = 0;
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maxRowHeight = 0;
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}
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auto itemHeight = view->itemDelegate()->sizeHint(view->viewOptions(), item).height();
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if(itemHeight > maxRowHeight)
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{
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maxRowHeight = itemHeight;
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}
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rows[currentRow].items.append(item);
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positionInRow++;
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}
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rows[currentRow].height = maxRowHeight;
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rows[currentRow].top = offsetFromTop;
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}
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QPair<int, int> VisualGroup::positionOf(const QModelIndex &index) const
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{
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int y = 0;
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for (auto & row: rows)
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{
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for(auto x = 0; x < row.items.size(); x++)
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{
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if(row.items[x] == index)
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{
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return qMakePair(x,y);
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}
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}
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y++;
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}
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qWarning() << "Item" << index.row() << index.data(Qt::DisplayRole).toString() << "not found in visual group" << text;
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return qMakePair(0, 0);
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}
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int VisualGroup::rowTopOf(const QModelIndex &index) const
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{
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auto position = positionOf(index);
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return rows[position.second].top;
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}
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int VisualGroup::rowHeightOf(const QModelIndex &index) const
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{
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auto position = positionOf(index);
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return rows[position.second].height;
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}
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VisualGroup::HitResults VisualGroup::hitScan(const QPoint &pos) const
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{
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VisualGroup::HitResults results = VisualGroup::NoHit;
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int y_start = verticalPosition();
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int body_start = y_start + headerHeight();
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int body_end = body_start + contentHeight() + 5; // FIXME: wtf is this 5?
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int y = pos.y();
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// int x = pos.x();
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if (y < y_start)
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{
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results = VisualGroup::NoHit;
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}
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else if (y < body_start)
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{
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results = VisualGroup::HeaderHit;
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int collapseSize = headerHeight() - 4;
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// the icon
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QRect iconRect = QRect(view->m_leftMargin + 2, 2 + y_start, collapseSize, collapseSize);
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if (iconRect.contains(pos))
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{
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results |= VisualGroup::CheckboxHit;
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}
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}
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else if (y < body_end)
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{
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results |= VisualGroup::BodyHit;
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}
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return results;
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}
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void VisualGroup::drawHeader(QPainter *painter, const QStyleOptionViewItem &option)
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{
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painter->setRenderHint(QPainter::Antialiasing);
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const QRect optRect = option.rect;
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QFont font(QApplication::font());
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font.setBold(true);
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const QFontMetrics fontMetrics = QFontMetrics(font);
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QColor outlineColor = option.palette.text().color();
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outlineColor.setAlphaF(0.35);
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//BEGIN: top left corner
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{
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painter->save();
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painter->setPen(outlineColor);
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const QPointF topLeft(optRect.topLeft());
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QRectF arc(topLeft, QSizeF(4, 4));
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arc.translate(0.5, 0.5);
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painter->drawArc(arc, 1440, 1440);
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painter->restore();
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}
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//END: top left corner
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//BEGIN: left vertical line
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{
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QPoint start(optRect.topLeft());
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start.ry() += 3;
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QPoint verticalGradBottom(optRect.topLeft());
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verticalGradBottom.ry() += fontMetrics.height() + 5;
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QLinearGradient gradient(start, verticalGradBottom);
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gradient.setColorAt(0, outlineColor);
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gradient.setColorAt(1, Qt::transparent);
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painter->fillRect(QRect(start, QSize(1, fontMetrics.height() + 5)), gradient);
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}
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//END: left vertical line
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//BEGIN: horizontal line
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{
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QPoint start(optRect.topLeft());
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start.rx() += 3;
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QPoint horizontalGradTop(optRect.topLeft());
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horizontalGradTop.rx() += optRect.width() - 6;
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painter->fillRect(QRect(start, QSize(optRect.width() - 6, 1)), outlineColor);
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}
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//END: horizontal line
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//BEGIN: top right corner
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{
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painter->save();
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painter->setPen(outlineColor);
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QPointF topRight(optRect.topRight());
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topRight.rx() -= 4;
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QRectF arc(topRight, QSizeF(4, 4));
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arc.translate(0.5, 0.5);
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painter->drawArc(arc, 0, 1440);
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painter->restore();
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}
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//END: top right corner
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//BEGIN: right vertical line
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{
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QPoint start(optRect.topRight());
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start.ry() += 3;
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QPoint verticalGradBottom(optRect.topRight());
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verticalGradBottom.ry() += fontMetrics.height() + 5;
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QLinearGradient gradient(start, verticalGradBottom);
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gradient.setColorAt(0, outlineColor);
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gradient.setColorAt(1, Qt::transparent);
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painter->fillRect(QRect(start, QSize(1, fontMetrics.height() + 5)), gradient);
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}
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//END: right vertical line
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//BEGIN: checkboxy thing
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{
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing, false);
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painter->setFont(font);
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QColor penColor(option.palette.text().color());
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penColor.setAlphaF(0.6);
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painter->setPen(penColor);
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QRect iconSubRect(option.rect);
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iconSubRect.setTop(iconSubRect.top() + 7);
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iconSubRect.setLeft(iconSubRect.left() + 7);
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int sizing = fontMetrics.height();
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int even = ( (sizing - 1) % 2 );
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iconSubRect.setHeight(sizing - even);
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iconSubRect.setWidth(sizing - even);
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painter->drawRect(iconSubRect);
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/*
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if(collapsed)
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painter->drawText(iconSubRect, Qt::AlignHCenter | Qt::AlignVCenter, "+");
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else
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painter->drawText(iconSubRect, Qt::AlignHCenter | Qt::AlignVCenter, "-");
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*/
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painter->setBrush(option.palette.text());
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painter->fillRect(iconSubRect.x(), iconSubRect.y() + iconSubRect.height() / 2,
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iconSubRect.width(), 2, penColor);
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if (collapsed)
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{
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painter->fillRect(iconSubRect.x() + iconSubRect.width() / 2, iconSubRect.y(), 2,
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iconSubRect.height(), penColor);
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}
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painter->restore();
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}
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//END: checkboxy thing
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//BEGIN: text
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{
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QRect textRect(option.rect);
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textRect.setTop(textRect.top() + 7);
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textRect.setLeft(textRect.left() + 7 + fontMetrics.height() + 7);
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textRect.setHeight(fontMetrics.height());
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textRect.setRight(textRect.right() - 7);
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painter->save();
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painter->setFont(font);
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QColor penColor(option.palette.text().color());
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penColor.setAlphaF(0.6);
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painter->setPen(penColor);
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painter->drawText(textRect, Qt::AlignLeft | Qt::AlignVCenter, text);
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painter->restore();
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}
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//END: text
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}
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int VisualGroup::totalHeight() const
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{
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return headerHeight() + 5 + contentHeight(); // FIXME: wtf is that '5'?
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}
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int VisualGroup::headerHeight() const
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{
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QFont font(QApplication::font());
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font.setBold(true);
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QFontMetrics fontMetrics(font);
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const int height = fontMetrics.height() + 1 /* 1 pixel-width gradient */
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+ 11 /* top and bottom separation */;
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return height;
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/*
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int raw = view->viewport()->fontMetrics().height() + 4;
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// add english. maybe. depends on font height.
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if (raw % 2 == 0)
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raw++;
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return std::min(raw, 25);
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*/
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}
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int VisualGroup::contentHeight() const
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{
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if (collapsed)
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{
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return 0;
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}
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auto last = rows[numRows() - 1];
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return last.top + last.height;
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}
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int VisualGroup::numRows() const
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{
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return rows.size();
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}
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int VisualGroup::verticalPosition() const
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{
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return m_verticalPosition;
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}
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QList<QModelIndex> VisualGroup::items() const
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{
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QList<QModelIndex> indices;
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for (int i = 0; i < view->model()->rowCount(); ++i)
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{
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const QModelIndex index = view->model()->index(i, 0);
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if (index.data(GroupViewRoles::GroupRole).toString() == text)
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{
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indices.append(index);
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}
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}
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return indices;
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}
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