mirror of
https://github.com/RetroShare/RetroShare.git
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c0cc792300
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6493 b45a01b8-16f6-495d-af2f-9b41ad6348cc
109 lines
3.1 KiB
C++
109 lines
3.1 KiB
C++
/****************************************************************
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* This file is distributed under the following license:
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*
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* Copyright (c) 2012, RetroShare Team
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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,
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* Boston, MA 02110-1301, USA.
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****************************************************************/
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#include <QPainter>
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#include <QMouseEvent>
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#include "RSTreeWidget.h"
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RSTreeWidget::RSTreeWidget(QWidget *parent) : QTreeWidget(parent)
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{
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}
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void RSTreeWidget::setPlaceholderText(const QString &text)
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{
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mPlaceholderText = text;
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viewport()->repaint();
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}
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void RSTreeWidget::paintEvent(QPaintEvent *event)
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{
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QTreeWidget::paintEvent(event);
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if (mPlaceholderText.isEmpty() == false && model() && model()->rowCount() == 0) {
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QWidget *vieportWidget = viewport();
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QPainter painter(vieportWidget);
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QPen pen = painter.pen();
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QColor color = pen.color();
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color.setAlpha(128);
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pen.setColor(color);
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painter.setPen(pen);
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painter.drawText(QRect(QPoint(), vieportWidget->size()), Qt::AlignHCenter | Qt::AlignVCenter | Qt::TextWordWrap, mPlaceholderText);
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}
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}
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void RSTreeWidget::mousePressEvent(QMouseEvent *event)
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{
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#if QT_VERSION < 0x040700
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if (event->buttons() & Qt::MidButton) {
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#else
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if (event->buttons() & Qt::MiddleButton) {
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#endif
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if (receivers(SIGNAL(signalMouseMiddleButtonClicked(QTreeWidgetItem*))) > 0) {
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QTreeWidgetItem *item = itemAt(event->pos());
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if (item) {
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setCurrentItem(item);
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emit signalMouseMiddleButtonClicked(item);
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}
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return; // eat event
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}
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}
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QTreeWidget::mousePressEvent(event);
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}
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void RSTreeWidget::filterItems(int filterColumn, const QString &text)
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{
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int count = topLevelItemCount();
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for (int index = 0; index < count; ++index) {
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filterItem(topLevelItem(index), filterColumn, text);
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}
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}
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bool RSTreeWidget::filterItem(QTreeWidgetItem *item, int filterColumn, const QString &text)
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{
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bool itemVisible = true;
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if (!text.isEmpty()) {
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if (!item->text(filterColumn).contains(text, Qt::CaseInsensitive)) {
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itemVisible = false;
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}
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}
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int visibleChildCount = 0;
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int count = item->childCount();
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for (int index = 0; index < count; ++index) {
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if (filterItem(item->child(index), filterColumn, text)) {
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++visibleChildCount;
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}
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}
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if (itemVisible || visibleChildCount) {
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item->setHidden(false);
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} else {
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item->setHidden(true);
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}
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return (itemVisible || visibleChildCount);
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}
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