Mercurial > projects > qtd
view examples/draganddrop/dropsite/droparea.d @ 275:bb0f228c27cd
Caching dependencies for d sources.
author | SokoL_SD |
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date | Mon, 28 Sep 2009 05:53:47 +0000 |
parents | aeeaae4dd540 |
children | 1f6923c8cba0 |
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/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information (qt-info@nokia.com) ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Commercial License Agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Nokia. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at qt-sales@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ module droparea; import qt.gui.QLabel; class DropArea : public QLabel { public: this(QWidget parent = null) { super(parent); setMinimumSize(200, 200); setFrameStyle(QFrame.Sunken | QFrame.StyledPanel); setAlignment(Qt.AlignCenter); setAcceptDrops(true); setAutoFillBackground(true); clearArea(); } void clearArea() { setText(tr("<drop content>")); setBackgroundRole(QPalette.Dark); changed.emit(null); } mixin Signal!("changed", QMimeData); protected: void dragEnterEvent(QDragEnterEvent event) { setText(tr("<drop content>")); setBackgroundRole(QPalette.Highlight); event.acceptProposedAction(); changed.emit(event.mimeData); } void dragMoveEvent(QDragMoveEvent event) { event.acceptProposedAction(); } void dragLeaveEvent(QDragLeaveEvent event) { clearArea(); event.accept(); } void dropEvent(QDropEvent event) { QMimeData mimeData = event.mimeData(); if (mimeData.hasImage()) { setPixmap(new QPixmap(mimeData.imageData)); } else if (mimeData.hasHtml()) { setText(mimeData.html()); setTextFormat(Qt.RichText); } else if (mimeData.hasText()) { setText(mimeData.text()); setTextFormat(Qt.PlainText); } else if (mimeData.hasUrls()) { QUrl[] urlList = mimeData.urls(); string text; for (int i = 0; i < urlList.length && i < 32; ++i) { text ~= urlList[i].path() ~ "\n"; } setText(text); } else { setText(tr("Cannot display data")); } setBackgroundRole(QPalette.Dark); event.acceptProposedAction(); } private: QLabel label; }