417 lines
15 KiB
C++
417 lines
15 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* PolyMC - 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 "InstanceDelegate.h"
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#include <QApplication>
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#include <QDebug>
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#include <QPainter>
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#include <QTextLayout>
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#include <QTextOption>
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#include <QtMath>
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#include <QIcon>
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#include <QTextEdit>
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#include "BaseInstance.h"
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#include "InstanceList.h"
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#include "InstanceView.h"
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// Origin: Qt
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static void viewItemTextLayout(QTextLayout& textLayout, int lineWidth, qreal& height, qreal& widthUsed)
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{
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height = 0;
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widthUsed = 0;
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textLayout.beginLayout();
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QString str = textLayout.text();
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while (true) {
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QTextLine line = textLayout.createLine();
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if (!line.isValid())
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break;
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if (line.textLength() == 0)
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break;
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line.setLineWidth(lineWidth);
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line.setPosition(QPointF(0, height));
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height += line.height();
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widthUsed = qMax(widthUsed, line.naturalTextWidth());
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}
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textLayout.endLayout();
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}
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ListViewDelegate::ListViewDelegate(QObject* parent) : QStyledItemDelegate(parent) {}
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void drawSelectionRect(QPainter* painter, const QStyleOptionViewItem& option, const QRect& rect)
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{
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if ((option.state & QStyle::State_Selected))
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painter->fillRect(rect, option.palette.brush(QPalette::Highlight));
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else {
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QColor backgroundColor = option.palette.color(QPalette::Window);
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backgroundColor.setAlpha(160);
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painter->fillRect(rect, QBrush(backgroundColor));
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}
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}
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void drawFocusRect(QPainter* painter, const QStyleOptionViewItem& option, const QRect& rect)
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{
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if (!(option.state & QStyle::State_HasFocus))
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return;
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QStyleOptionFocusRect opt;
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opt.direction = option.direction;
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opt.fontMetrics = option.fontMetrics;
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opt.palette = option.palette;
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opt.rect = rect;
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// opt.state = option.state | QStyle::State_KeyboardFocusChange |
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// QStyle::State_Item;
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auto col = option.state & QStyle::State_Selected ? QPalette::Highlight : QPalette::Base;
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opt.backgroundColor = option.palette.color(col);
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// Apparently some widget styles expect this hint to not be set
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painter->setRenderHint(QPainter::Antialiasing, false);
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QStyle* style = option.widget ? option.widget->style() : QApplication::style();
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style->drawPrimitive(QStyle::PE_FrameFocusRect, &opt, painter, option.widget);
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painter->setRenderHint(QPainter::Antialiasing);
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}
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// TODO this can be made a lot prettier
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void drawProgressOverlay(QPainter* painter, const QStyleOptionViewItem& option, const int value, const int maximum)
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{
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if (maximum == 0 || value == maximum) {
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return;
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}
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painter->save();
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qreal percent = (qreal)value / (qreal)maximum;
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QColor color = option.palette.color(QPalette::Dark);
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color.setAlphaF(0.70f);
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painter->setBrush(color);
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painter->setPen(QPen(QBrush(), 0));
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painter->drawPie(option.rect, 90 * 16, -percent * 360 * 16);
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painter->restore();
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}
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void drawBadges(QPainter* painter, const QStyleOptionViewItem& option, BaseInstance* instance, QIcon::Mode mode, QIcon::State state)
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{
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QList<QString> pixmaps;
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if (instance->isRunning()) {
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pixmaps.append("status-running");
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} else if (instance->hasCrashed() || instance->hasVersionBroken()) {
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pixmaps.append("status-bad");
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}
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if (instance->hasUpdateAvailable()) {
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pixmaps.append("checkupdate");
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}
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static const int itemSide = 24;
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static const int spacing = 1;
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const int itemsPerRow = qMax(1, qFloor(double(option.rect.width() + spacing) / double(itemSide + spacing)));
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const int rows = qCeil((double)pixmaps.size() / (double)itemsPerRow);
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QListIterator<QString> it(pixmaps);
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painter->translate(option.rect.topLeft());
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for (int y = 0; y < rows; ++y) {
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for (int x = 0; x < itemsPerRow; ++x) {
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if (!it.hasNext()) {
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return;
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}
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// FIXME: inject this.
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auto icon = QIcon::fromTheme(it.next());
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// opt.icon.paint(painter, iconbox, Qt::AlignCenter, mode, state);
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const QPixmap pixmap;
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// itemSide
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QRect badgeRect(option.rect.width() - x * itemSide + qMax(x - 1, 0) * spacing - itemSide,
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y * itemSide + qMax(y - 1, 0) * spacing, itemSide, itemSide);
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icon.paint(painter, badgeRect, Qt::AlignCenter, mode, state);
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}
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}
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painter->translate(-option.rect.topLeft());
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}
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static QSize viewItemTextSize(const QStyleOptionViewItem* option)
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{
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QStyle* style = option->widget ? option->widget->style() : QApplication::style();
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QTextOption textOption;
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textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
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QTextLayout textLayout;
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textLayout.setTextOption(textOption);
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textLayout.setFont(option->font);
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textLayout.setText(option->text);
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const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, option, option->widget) + 1;
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QRect bounds(0, 0, 100 - 2 * textMargin, 600);
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qreal height = 0, widthUsed = 0;
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viewItemTextLayout(textLayout, bounds.width(), height, widthUsed);
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const QSize size(qCeil(widthUsed), qCeil(height));
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return QSize(size.width() + 2 * textMargin, size.height());
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}
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void ListViewDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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QStyleOptionViewItem opt = option;
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initStyleOption(&opt, index);
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painter->save();
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painter->setClipRect(opt.rect);
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opt.features |= QStyleOptionViewItem::WrapText;
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opt.text = index.data().toString();
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opt.textElideMode = Qt::ElideRight;
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opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter;
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QStyle* style = opt.widget ? opt.widget->style() : QApplication::style();
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// const int iconSize = style->pixelMetric(QStyle::PM_IconViewIconSize);
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const int iconSize = 48;
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QRect iconbox = opt.rect;
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const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, opt.widget) + 1;
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QRect textRect = opt.rect;
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QRect textHighlightRect = textRect;
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// clip the decoration on top, remove width padding
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textRect.adjust(textMargin, iconSize + textMargin + 5, -textMargin, 0);
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textHighlightRect.adjust(0, iconSize + 5, 0, 0);
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// draw background
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{
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// FIXME: unused
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// QSize textSize = viewItemTextSize ( &opt );
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drawSelectionRect(painter, opt, textHighlightRect);
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/*
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QPalette::ColorGroup cg;
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QStyleOptionViewItem opt2(opt);
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if ((opt.widget && opt.widget->isEnabled()) || (opt.state & QStyle::State_Enabled))
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{
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if (!(opt.state & QStyle::State_Active))
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cg = QPalette::Inactive;
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else
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cg = QPalette::Normal;
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}
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else
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{
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cg = QPalette::Disabled;
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}
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*/
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/*
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opt2.palette.setCurrentColorGroup(cg);
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// fill in background, if any
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if (opt.backgroundBrush.style() != Qt::NoBrush)
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{
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QPointF oldBO = painter->brushOrigin();
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painter->setBrushOrigin(opt.rect.topLeft());
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painter->fillRect(opt.rect, opt.backgroundBrush);
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painter->setBrushOrigin(oldBO);
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}
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drawSelectionRect(painter, opt2, textHighlightRect);
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*/
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/*
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if (opt.showDecorationSelected)
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{
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drawSelectionRect(painter, opt2, opt.rect);
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drawFocusRect(painter, opt2, opt.rect);
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// painter->fillRect ( opt.rect, opt.palette.brush ( cg, QPalette::Highlight ) );
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}
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else
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{
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// if ( opt.state & QStyle::State_Selected )
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{
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// QRect textRect = subElementRect ( QStyle::SE_ItemViewItemText, opt,
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// opt.widget );
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// painter->fillRect ( textHighlightRect, opt.palette.brush ( cg,
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// QPalette::Highlight ) );
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drawSelectionRect(painter, opt2, textHighlightRect);
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drawFocusRect(painter, opt2, textHighlightRect);
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}
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}
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*/
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}
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// icon mode and state, also used for badges
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QIcon::Mode mode = QIcon::Normal;
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if (!(opt.state & QStyle::State_Enabled))
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mode = QIcon::Disabled;
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else if (opt.state & QStyle::State_Selected)
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mode = QIcon::Selected;
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QIcon::State state = opt.state & QStyle::State_Open ? QIcon::On : QIcon::Off;
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// draw the icon
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{
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iconbox.setHeight(iconSize);
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opt.icon.paint(painter, iconbox, Qt::AlignCenter, mode, state);
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}
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// set the text colors
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QPalette::ColorGroup cg = opt.state & QStyle::State_Enabled ? QPalette::Normal : QPalette::Disabled;
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if (cg == QPalette::Normal && !(opt.state & QStyle::State_Active))
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cg = QPalette::Inactive;
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if (opt.state & QStyle::State_Selected) {
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painter->setPen(opt.palette.color(cg, QPalette::HighlightedText));
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} else {
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painter->setPen(opt.palette.color(cg, QPalette::Text));
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}
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// draw the text
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QTextOption textOption;
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textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
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textOption.setTextDirection(opt.direction);
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textOption.setAlignment(QStyle::visualAlignment(opt.direction, opt.displayAlignment));
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QTextLayout textLayout;
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textLayout.setTextOption(textOption);
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textLayout.setFont(opt.font);
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textLayout.setText(opt.text);
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qreal width, height;
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viewItemTextLayout(textLayout, textRect.width(), height, width);
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const int lineCount = textLayout.lineCount();
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const QRect layoutRect = QStyle::alignedRect(opt.direction, opt.displayAlignment, QSize(textRect.width(), int(height)), textRect);
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const QPointF position = layoutRect.topLeft();
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for (int i = 0; i < lineCount; ++i) {
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const QTextLine line = textLayout.lineAt(i);
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line.draw(painter, position);
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}
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// FIXME: this really has no business of being here. Make generic.
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auto instance = (BaseInstance*)index.data(InstanceList::InstancePointerRole).value<void*>();
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if (instance) {
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drawBadges(painter, opt, instance, mode, state);
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}
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drawProgressOverlay(painter, opt, index.data(InstanceViewRoles::ProgressValueRole).toInt(),
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index.data(InstanceViewRoles::ProgressMaximumRole).toInt());
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painter->restore();
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}
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QSize ListViewDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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QStyleOptionViewItem opt = option;
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initStyleOption(&opt, index);
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opt.features |= QStyleOptionViewItem::WrapText;
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opt.text = index.data().toString();
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opt.textElideMode = Qt::ElideRight;
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opt.displayAlignment = Qt::AlignTop | Qt::AlignHCenter;
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QStyle* style = opt.widget ? opt.widget->style() : QApplication::style();
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const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, &option, opt.widget) + 1;
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int height = 48 + textMargin * 2 + 5; // TODO: turn constants into variables
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QSize szz = viewItemTextSize(&opt);
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height += szz.height();
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// FIXME: maybe the icon items could scale and keep proportions?
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QSize sz(100, height);
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return sz;
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}
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class NoReturnTextEdit : public QTextEdit {
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Q_OBJECT
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public:
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explicit NoReturnTextEdit(QWidget* parent) : QTextEdit(parent)
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{
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setTextInteractionFlags(Qt::TextEditorInteraction);
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setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAlwaysOff);
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}
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bool event(QEvent* event) override
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{
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auto eventType = event->type();
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if (eventType == QEvent::KeyPress || eventType == QEvent::KeyRelease) {
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QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
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auto key = keyEvent->key();
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if ((key == Qt::Key_Return || key == Qt::Key_Enter) && eventType == QEvent::KeyPress) {
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emit editingDone();
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return true;
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}
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if (key == Qt::Key_Tab) {
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return true;
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}
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}
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return QTextEdit::event(event);
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}
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signals:
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void editingDone();
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};
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void ListViewDelegate::updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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const int iconSize = 48;
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QRect textRect = option.rect;
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// QStyle *style = option.widget ? option.widget->style() : QApplication::style();
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textRect.adjust(0, iconSize + 5, 0, 0);
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editor->setGeometry(textRect);
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}
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void ListViewDelegate::setEditorData(QWidget* editor, const QModelIndex& index) const
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{
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auto text = index.data(Qt::EditRole).toString();
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QTextEdit* realeditor = qobject_cast<NoReturnTextEdit*>(editor);
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realeditor->setAlignment(Qt::AlignHCenter | Qt::AlignTop);
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realeditor->append(text);
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realeditor->selectAll();
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realeditor->document()->clearUndoRedoStacks();
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}
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void ListViewDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const
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{
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QTextEdit* realeditor = qobject_cast<NoReturnTextEdit*>(editor);
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QString text = realeditor->toPlainText();
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text.replace(QChar('\n'), QChar(' '));
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text = text.trimmed();
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// Prevent instance names longer than 128 chars
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text.truncate(128);
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if (text.size() != 0) {
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model->setData(index, text);
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}
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}
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QWidget* ListViewDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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auto editor = new NoReturnTextEdit(parent);
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connect(editor, &NoReturnTextEdit::editingDone, this, &ListViewDelegate::editingDone);
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return editor;
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}
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void ListViewDelegate::editingDone()
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{
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NoReturnTextEdit* editor = qobject_cast<NoReturnTextEdit*>(sender());
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emit commitData(editor);
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emit closeEditor(editor);
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}
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#include "InstanceDelegate.moc"
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