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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.
*/
#pragma once
#include <QEvent>
#include <QListView>
#include <QScrollBar>
#include <QStyledItemDelegate>
class BasePage;
const int pageIconSize = 24;
class PageViewDelegate : public QStyledItemDelegate {
public:
PageViewDelegate(QObject* parent) : QStyledItemDelegate(parent) {}
QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const
{
QSize size = QStyledItemDelegate::sizeHint(option, index);
size.setHeight(qMax(size.height(), 32));
return size;
}
};
class PageModel : public QAbstractListModel {
public:
PageModel(QObject* parent = 0) : QAbstractListModel(parent)
{
QPixmap empty(pageIconSize, pageIconSize);
empty.fill(Qt::transparent);
m_emptyIcon = QIcon(empty);
}
virtual ~PageModel() {}
int rowCount(const QModelIndex& parent = QModelIndex()) const { return parent.isValid() ? 0 : m_pages.size(); }
QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const
{
switch (role) {
case Qt::DisplayRole:
return m_pages.at(index.row())->displayName();
case Qt::DecorationRole: {
QIcon icon = m_pages.at(index.row())->icon();
if (icon.isNull())
icon = m_emptyIcon;
// HACK: fixes icon stretching on windows. TODO: report Qt bug for this
return QIcon(icon.pixmap(QSize(48, 48)));
}
}
return QVariant();
}
void setPages(const QList<BasePage*>& pages)
{
beginResetModel();
m_pages = pages;
endResetModel();
}
const QList<BasePage*>& pages() const { return m_pages; }
BasePage* findPageEntryById(QString id)
{
for (auto page : m_pages) {
if (page->id() == id)
return page;
}
return nullptr;
}
QList<BasePage*> m_pages;
QIcon m_emptyIcon;
};
class PageView : public QListView {
public:
PageView(QWidget* parent = 0) : QListView(parent)
{
setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Expanding);
setItemDelegate(new PageViewDelegate(this));
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
virtual QSize sizeHint() const
{
int width = sizeHintForColumn(0) + frameWidth() * 2 + 5;
if (verticalScrollBar()->isVisible())
width += verticalScrollBar()->width();
return QSize(width, 100);
}
virtual bool eventFilter(QObject* obj, QEvent* event)
{
if (obj == verticalScrollBar() && (event->type() == QEvent::Show || event->type() == QEvent::Hide))
updateGeometry();
return QListView::eventFilter(obj, event);
}
};
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