| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the documentation of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** Commercial License Usage |
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| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
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| ** "Redistribution and use in source and binary forms, with or without |
| ** modification, are permitted provided that the following conditions are |
| ** met: |
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| ****************************************************************************/ |
| |
| #include <QtGui> |
| |
| #include "window.h" |
| |
| Window::Window(QWidget *parent) |
| : QWidget(parent) |
| { |
| QLabel *textLabel = new QLabel(tr("Data:"), this); |
| textBrowser = new QTextBrowser(this); |
| |
| QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), this); |
| mimeTypeCombo = new QComboBox(this); |
| |
| QVBoxLayout *layout = new QVBoxLayout(this); |
| layout->addWidget(textLabel); |
| layout->addWidget(textBrowser); |
| layout->addWidget(mimeTypeLabel); |
| layout->addWidget(mimeTypeCombo); |
| /* |
| ... |
| setAcceptDrops(true); |
| */ |
| setAcceptDrops(true); |
| setWindowTitle(tr("Drop Actions")); |
| } |
| |
| void Window::dragEnterEvent(QDragEnterEvent *event) |
| { |
| if (event->mimeData()->hasFormat("text/plain")) |
| event->acceptProposedAction(); |
| } |
| |
| void Window::dropEvent(QDropEvent *event) |
| { |
| QMenu actionMenu(this); |
| QAction *copyAction = 0; |
| QAction *moveAction = 0; |
| QAction *linkAction = 0; |
| QAction *ignoreAction = 0; |
| if (event->possibleActions() & Qt::CopyAction) |
| copyAction = actionMenu.addAction(tr("Copy")); |
| if (event->possibleActions() & Qt::MoveAction) |
| moveAction = actionMenu.addAction(tr("Move")); |
| if (event->possibleActions() & Qt::LinkAction) |
| linkAction = actionMenu.addAction(tr("Link")); |
| if (event->possibleActions() & Qt::IgnoreAction) |
| ignoreAction = actionMenu.addAction(tr("Ignore")); |
| |
| QAction *result = actionMenu.exec(QCursor::pos()); |
| |
| if (copyAction && result == copyAction) |
| event->setDropAction(Qt::CopyAction); |
| else if (moveAction && result == moveAction) |
| event->setDropAction(Qt::MoveAction); |
| else if (linkAction && result == linkAction) |
| event->setDropAction(Qt::LinkAction); |
| else { |
| event->setDropAction(Qt::IgnoreAction); |
| return; |
| } |
| |
| textBrowser->setPlainText(event->mimeData()->text()); |
| mimeTypeCombo->clear(); |
| mimeTypeCombo->addItems(event->mimeData()->formats()); |
| } |