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766cfb67df
Model returns string for DisplayRole. Text alignment is set by Model (using TextAlignmentRole). Delegate performs custom painting only where necessary (i.e. for Progress bar).
102 lines
3.8 KiB
C++
102 lines
3.8 KiB
C++
/*
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* Bittorrent Client using Qt and libtorrent.
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* Copyright (C) 2006 Christophe Dumez <chris@qbittorrent.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* In addition, as a special exception, the copyright holders give permission to
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* link this program with the OpenSSL project's "OpenSSL" library (or with
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* modified versions of it that use the same license as the "OpenSSL" library),
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* and distribute the linked executables. You must obey the GNU General Public
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* License in all respects for all of the code used other than "OpenSSL". If you
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* modify file(s), you may extend this exception to your version of the file(s),
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* but you are not obligated to do so. If you do not wish to do so, delete this
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* exception statement from your version.
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*/
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#include "transferlistdelegate.h"
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#include <QApplication>
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#include <QModelIndex>
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#include <QPainter>
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#include <QStyleOptionViewItem>
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#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
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#include <QProxyStyle>
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#endif
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#include "base/utils/string.h"
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#include "transferlistmodel.h"
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TransferListDelegate::TransferListDelegate(QObject *parent)
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: QItemDelegate(parent)
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{
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}
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void TransferListDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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if (index.column() != TransferListModel::TR_PROGRESS) {
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QItemDelegate::paint(painter, option, index);
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return;
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}
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painter->save();
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QStyleOptionViewItem opt = QItemDelegate::setOptions(index, option);
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QItemDelegate::drawBackground(painter, opt, index);
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QStyleOptionProgressBar newopt;
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newopt.rect = opt.rect;
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newopt.text = index.data().toString();
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newopt.progress = static_cast<int>(index.data(TransferListModel::UnderlyingDataRole).toReal());
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newopt.maximum = 100;
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newopt.minimum = 0;
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newopt.state |= QStyle::State_Enabled;
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newopt.textVisible = true;
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#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
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// XXX: To avoid having the progress text on the right of the bar
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QProxyStyle st("fusion");
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st.drawControl(QStyle::CE_ProgressBar, &newopt, painter);
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#else
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QApplication::style()->drawControl(QStyle::CE_ProgressBar, &newopt, painter);
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#endif
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painter->restore();
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}
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QWidget *TransferListDelegate::createEditor(QWidget *, const QStyleOptionViewItem &, const QModelIndex &) const
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{
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// No editor here
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return nullptr;
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}
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QSize TransferListDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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// Reimplementing sizeHint() because the 'name' column contains text+icon.
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// When that WHOLE column goes out of view(eg user scrolls horizontally)
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// the rows shrink if the text's height is smaller than the icon's height.
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// This happens because icon from the 'name' column is no longer drawn.
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static int nameColHeight = -1;
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if (nameColHeight == -1) {
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const QModelIndex nameColumn = index.sibling(index.row(), TransferListModel::TR_NAME);
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nameColHeight = QItemDelegate::sizeHint(option, nameColumn).height();
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}
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QSize size = QItemDelegate::sizeHint(option, index);
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size.setHeight(std::max(nameColHeight, size.height()));
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return size;
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}
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