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84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/*
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SPDX-FileCopyrightText: 2013 Eike Hein <hein@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "draghelper.h"
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#include <QApplication>
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#include <QDrag>
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#include <QIcon>
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#include <QMimeData>
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#include <QPixmap>
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#include <QPointer>
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#include <QQuickItem>
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#include "backend.h"
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DragHelper::DragHelper(QObject *parent)
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: QObject(parent)
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, m_dragIconSize(32)
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{
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}
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DragHelper::~DragHelper()
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{
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}
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int DragHelper::dragIconSize() const
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{
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return m_dragIconSize;
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}
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void DragHelper::setDragIconSize(int size)
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{
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if (m_dragIconSize != size) {
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m_dragIconSize = size;
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Q_EMIT dragIconSizeChanged();
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}
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}
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bool DragHelper::isDrag(int oldX, int oldY, int newX, int newY) const
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{
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return ((QPoint(oldX, oldY) - QPoint(newX, newY)).manhattanLength() >= QApplication::startDragDistance());
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}
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void DragHelper::startDrag(QQuickItem *item, const QString &mimeType, const QVariant &mimeData, const QUrl &url, const QIcon &icon)
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{
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QMetaObject::invokeMethod(this,
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"startDragInternal",
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Qt::QueuedConnection,
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Q_ARG(QQuickItem *, item),
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Q_ARG(QString, mimeType),
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Q_ARG(QVariant, mimeData),
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Q_ARG(QUrl, url),
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Q_ARG(QIcon, icon));
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}
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void DragHelper::startDragInternal(QQuickItem *item, const QString &mimeType, const QVariant &mimeData, const QUrl &url, const QIcon &icon) const
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{
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QPointer<QQuickItem> grabber = item;
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QMimeData *dragData = new QMimeData();
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const QByteArray &taskUrlData = Backend::tryDecodeApplicationsUrl(url).toString().toUtf8();
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dragData->setData(QStringLiteral("text/x-orgkdeplasmataskmanager_taskurl"), taskUrlData);
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dragData->setData(mimeType, mimeData.toByteArray());
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dragData->setData(QStringLiteral("application/x-orgkdeplasmataskmanager_taskbuttonitem"), mimeData.toByteArray());
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QDrag *drag = new QDrag(static_cast<QQuickItem *>(parent()));
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drag->setMimeData(dragData);
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drag->setPixmap(icon.pixmap(QSize(m_dragIconSize, m_dragIconSize)));
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grabber->grabMouse();
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drag->exec();
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if (grabber) {
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grabber->ungrabMouse();
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}
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Q_EMIT dropped();
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}
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