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111 lines
3.2 KiB
111 lines
3.2 KiB
/*
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Copyright (C) 2014 Kuzma Shapran <kuzma.shapran@gmail.com>
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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; either version 2 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "tabbar.h"
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#include <QPointer>
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#include <QMouseEvent>
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#include <QApplication>
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#include <QDrag>
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#include <QMimeData>
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namespace PCManFM {
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TabBar::TabBar(QWidget *parent):
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QTabBar(parent),
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dragStarted_(false)
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{
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}
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void TabBar::mousePressEvent(QMouseEvent *event) {
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QTabBar::mousePressEvent (event);
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if(event->button() == Qt::LeftButton
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&& tabAt(event->pos()) > -1) {
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dragStartPosition_ = event->pos();
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}
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dragStarted_ = false;
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}
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void TabBar::mouseMoveEvent(QMouseEvent *event)
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{
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if(!dragStartPosition_.isNull()
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&& (event->pos() - dragStartPosition_).manhattanLength() < QApplication::startDragDistance()) {
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dragStarted_ = true;
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}
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if((event->buttons() & Qt::LeftButton)
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&& dragStarted_
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&& !window()->geometry().contains(event->globalPos())) {
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if(currentIndex() == -1) {
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return;
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}
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QPointer<QDrag> drag = new QDrag(this);
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QMimeData *mimeData = new QMimeData;
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mimeData->setData("application/pcmanfm-qt-tab", QByteArray());
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drag->setMimeData(mimeData);
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Qt::DropAction dragged = drag->exec();
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if(dragged == Qt::IgnoreAction) { // a tab is dropped outside all windows
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if(count() > 1) {
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Q_EMIT tabDetached();
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}
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else {
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finishMouseMoveEvent();
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}
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event->accept();
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}
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else if(dragged == Qt::MoveAction) { // a tab is dropped into another window
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event->accept();
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}
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drag->deleteLater();
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}
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else {
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QTabBar::mouseMoveEvent(event);
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}
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}
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void TabBar::finishMouseMoveEvent() {
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QMouseEvent finishingEvent(QEvent::MouseMove, QPoint(), Qt::NoButton, Qt::NoButton, Qt::NoModifier);
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mouseMoveEvent(&finishingEvent);
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}
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void TabBar::releaseMouse() {
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QMouseEvent releasingEvent(QEvent::MouseButtonRelease, QPoint(), Qt::LeftButton, Qt::NoButton, Qt::NoModifier);
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mouseReleaseEvent(&releasingEvent);
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}
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void TabBar::mouseReleaseEvent(QMouseEvent *event) {
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if (event->button() == Qt::MiddleButton) {
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int index = tabAt(event->pos());
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if (index != -1) {
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Q_EMIT tabCloseRequested(index);
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}
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}
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QTabBar::mouseReleaseEvent(event);
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}
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// Let the main window receive dragged tabs!
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void TabBar::dragEnterEvent(QDragEnterEvent *event) {
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if(event->mimeData()->hasFormat("application/pcmanfm-qt-tab")) {
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event->ignore();
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}
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}
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}
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