serverlistview.cpp

//------------------------------------------------------------------------------
// serverlistview.cpp
//------------------------------------------------------------------------------
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301, USA.
//
//------------------------------------------------------------------------------
// Copyright (C) 2009 "Zalewa" <zalewapl@gmail.com>
//------------------------------------------------------------------------------

#include "gui/widgets/serverlistview.h"

#include "configuration/doomseekerconfig.h"
#include <QDebug>
#include <QHeaderView>
#include <QItemDelegate>
#include <QMouseEvent>
#include <QPainter>
#include <QSortFilterProxyModel>
#include <QTextDocument>

class CustomItemDelegate : public QItemDelegate
{
        public:
                void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
                {
                        // First we're going to check for our new right aligned image
                        // option.
                        bool rightAligned = false;
                        QStyleOptionViewItem opt = option;

                        QVariant userRole = index.data(Qt::UserRole);
                        if(userRole.isValid() && userRole.type() == QVariant::Int && userRole.toInt() == USERROLE_RIGHTALIGNDECORATION)
                        {
                                opt.decorationAlignment = Qt::AlignRight|Qt::AlignVCenter;
                                rightAligned = true;
                        }

                        // Now we draw the table as usual.
                        QItemDelegate::paint(painter, opt, index);

                        // If the row is selected and we are using the right aligned feature
                        // we must now redraw the decoration.  The rectangle that was used
                        // in the previous function will cause the image to clip.
                        //
                        // The only other way I can think of for fixing that problem would
                        // be to completely rewrite this class, which I really don't want
                        // to do.
                        if(rightAligned && (opt.state & QStyle::State_Selected))
                        {
                                QVariant decorationRole = index.data(Qt::DecorationRole);
                                if(decorationRole.isValid())
                                {
                                        painter->save();
                                        painter->setClipRect(opt.rect);

                                        QPixmap pixmap = decoration(opt, decorationRole);
                                        drawDecoration(painter, opt, opt.rect, pixmap);

                                        painter->restore();
                                }
                        }
                }

        protected:
                void drawDecoration(QPainter *painter, const QStyleOptionViewItem &option, const QRect &rect, const QPixmap &pixmap) const
                {
                        if(pixmap.isNull() || !rect.isValid())
                                return;

                        if(option.decorationAlignment == (Qt::AlignRight|Qt::AlignVCenter)) // Special handling.
                        {
                                QPoint p = QStyle::alignedRect(option.direction, option.decorationAlignment, pixmap.size(), option.rect).topLeft();
                                painter->drawPixmap(p, pixmap);
                        }
                        else
                                QItemDelegate::drawDecoration(painter, option, rect, pixmap);
                }
};


ServerListView::ServerListView(QWidget* parent) : QTableView(parent)
{
        // Prevent the fat rows problem.
        verticalHeader()->setDefaultSectionSize(fontMetrics().height() + 6);
        setShowGrid(gConfig.doomseeker.bDrawGridInServerTable);

        bAllowAllRowsRefresh = true;
        setItemDelegate(new CustomItemDelegate());
}

void ServerListView::mouseReleaseEvent(QMouseEvent* event)
{
        QModelIndex index = indexAt(event->pos());
        switch (event->button())
        {
                case Qt::MidButton:
                        if (index.isValid())
                        {
                                emit middleMouseClick(index, event->pos());
                        }
                        break;

                case Qt::RightButton:
                        if (index.isValid())
                        {
                                emit rightMouseClick(index, event->pos());
                        }
                        break;

                default:
                        QTableView::mouseReleaseEvent(event);
                        break;
        }
}

void ServerListView::mouseDoubleClickEvent(QMouseEvent* event)
{
        if (event->button() != Qt::LeftButton)
        {
                QTableView::mouseDoubleClickEvent(event);
        }
        else
        {
                QModelIndex index = indexAt(event->pos());
                if (index.isValid())
                {
                        emit leftMouseDoubleClicked(index, event->pos());
                }
        }
}

void ServerListView::updateRowVisuals(int row)
{
        resizeRowToContents(row);
}

void ServerListView::updateAllRows()
{
        if (bAllowAllRowsRefresh)
        {
                QSortFilterProxyModel* pModel = static_cast<QSortFilterProxyModel*>(model());
                int rowCount = pModel->sourceModel()->rowCount();

                for (int i = 0; i < rowCount; ++i)
                {
                        updateRowVisuals(i);
                }
        }
}