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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qplatformdefs.h"
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#include "qbitmap.h"
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#include "qdrag.h"
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#include "qpixmap.h"
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#include "qevent.h"
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#include "qfile.h"
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#include "qtextcodec.h"
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#include "qapplication.h"
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#include "qpoint.h"
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#include "qwidget.h"
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#include "qbuffer.h"
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#include "qimage.h"
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#include "qregexp.h"
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#include "qdir.h"
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#include "qdnd_p.h"
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#include "qimagereader.h"
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#include "qimagewriter.h"
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#include "qdebug.h"
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#include <ctype.h>
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#ifndef QT_NO_DRAGANDDROP
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QT_BEGIN_NAMESPACE
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// These pixmaps approximate the images in the Windows User Interface Guidelines.
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// XPM
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static const char * const move_xpm[] = {
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"11 20 3 1",
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". c None",
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#if defined(Q_WS_WIN)
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"a c #000000",
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"X c #FFFFFF", // Windows cursor is traditionally white
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#else
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"a c #FFFFFF",
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"X c #000000", // X11 cursor is traditionally black
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#endif
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"aa.........",
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"aXa........",
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"aXXa.......",
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"aXXXa......",
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"aXXXXa.....",
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"aXXXXXa....",
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"aXXXXXXa...",
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"aXXXXXXXa..",
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"aXXXXXXXXa.",
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"aXXXXXXXXXa",
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"aXXXXXXaaaa",
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"aXXXaXXa...",
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"aXXaaXXa...",
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"aXa..aXXa..",
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"aa...aXXa..",
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"a.....aXXa.",
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"......aXXa.",
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".......aXXa",
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".......aXXa",
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"........aa."};
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#ifdef Q_WS_WIN
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/* XPM */
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static const char * const ignore_xpm[] = {
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"24 30 3 1",
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". c None",
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"a c #000000",
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"X c #FFFFFF",
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"aa......................",
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"aXa.....................",
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"aXXa....................",
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"aXXXa...................",
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"aXXXXa..................",
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"aXXXXXa.................",
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"aXXXXXXa................",
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"aXXXXXXXa...............",
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"aXXXXXXXXa..............",
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"aXXXXXXXXXa.............",
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"aXXXXXXaaaa.............",
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"aXXXaXXa................",
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"aXXaaXXa................",
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"aXa..aXXa...............",
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"aa...aXXa...............",
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"a.....aXXa..............",
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"......aXXa.....XXXX.....",
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".......aXXa..XXaaaaXX...",
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".......aXXa.XaaaaaaaaX..",
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"........aa.XaaaXXXXaaaX.",
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"...........XaaaaX..XaaX.",
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"..........XaaXaaaX..XaaX",
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"..........XaaXXaaaX.XaaX",
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"..........XaaX.XaaaXXaaX",
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"..........XaaX..XaaaXaaX",
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"...........XaaX..XaaaaX.",
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"...........XaaaXXXXaaaX.",
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"............XaaaaaaaaX..",
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".............XXaaaaXX...",
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"...............XXXX....."};
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#endif
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/* XPM */
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static const char * const copy_xpm[] = {
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"24 30 3 1",
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". c None",
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"a c #000000",
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"X c #FFFFFF",
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#if defined(Q_WS_WIN) // Windows cursor is traditionally white
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"aa......................",
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"aXa.....................",
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"aXXa....................",
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"aXXXa...................",
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"aXXXXa..................",
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"aXXXXXa.................",
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"aXXXXXXa................",
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"aXXXXXXXa...............",
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"aXXXXXXXXa..............",
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"aXXXXXXXXXa.............",
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"aXXXXXXaaaa.............",
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"aXXXaXXa................",
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"aXXaaXXa................",
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"aXa..aXXa...............",
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"aa...aXXa...............",
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"a.....aXXa..............",
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"......aXXa..............",
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".......aXXa.............",
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".......aXXa.............",
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"........aa...aaaaaaaaaaa",
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#else
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"XX......................",
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"XaX.....................",
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"XaaX....................",
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"XaaaX...................",
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"XaaaaX..................",
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"XaaaaaX.................",
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"XaaaaaaX................",
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"XaaaaaaaX...............",
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"XaaaaaaaaX..............",
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"XaaaaaaaaaX.............",
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"XaaaaaaXXXX.............",
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"XaaaXaaX................",
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"XaaXXaaX................",
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"XaX..XaaX...............",
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"XX...XaaX...............",
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"X.....XaaX..............",
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"......XaaX..............",
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".......XaaX.............",
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".......XaaX.............",
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"........XX...aaaaaaaaaaa",
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#endif
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".............aXXXXXXXXXa",
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".............aXXXXXXXXXa",
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".............aXXXXaXXXXa",
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".............aXXXXaXXXXa",
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".............aXXaaaaaXXa",
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".............aXXXXaXXXXa",
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".............aXXXXaXXXXa",
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".............aXXXXXXXXXa",
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".............aXXXXXXXXXa",
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".............aaaaaaaaaaa"};
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/* XPM */
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static const char * const link_xpm[] = {
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"24 30 3 1",
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". c None",
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"a c #000000",
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"X c #FFFFFF",
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#if defined(Q_WS_WIN) // Windows cursor is traditionally white
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"aa......................",
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"aXa.....................",
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"aXXa....................",
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"aXXXa...................",
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"aXXXXa..................",
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"aXXXXXa.................",
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"aXXXXXXa................",
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"aXXXXXXXa...............",
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"aXXXXXXXXa..............",
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"aXXXXXXXXXa.............",
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"aXXXXXXaaaa.............",
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"aXXXaXXa................",
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"aXXaaXXa................",
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"aXa..aXXa...............",
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"aa...aXXa...............",
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"a.....aXXa..............",
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"......aXXa..............",
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".......aXXa.............",
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".......aXXa.............",
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"........aa...aaaaaaaaaaa",
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#else
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"XX......................",
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"XaX.....................",
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"XaaX....................",
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"XaaaX...................",
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"XaaaaX..................",
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"XaaaaaX.................",
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"XaaaaaaX................",
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"XaaaaaaaX...............",
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"XaaaaaaaaX..............",
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"XaaaaaaaaaX.............",
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"XaaaaaaXXXX.............",
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"XaaaXaaX................",
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"XaaXXaaX................",
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"XaX..XaaX...............",
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"XX...XaaX...............",
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"X.....XaaX..............",
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"......XaaX..............",
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".......XaaX.............",
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".......XaaX.............",
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"........XX...aaaaaaaaaaa",
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#endif
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".............aXXXXXXXXXa",
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".............aXXXaaaaXXa",
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".............aXXXXaaaXXa",
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".............aXXXaaaaXXa",
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".............aXXaaaXaXXa",
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".............aXXaaXXXXXa",
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".............aXXaXXXXXXa",
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".............aXXXaXXXXXa",
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".............aXXXXXXXXXa",
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".............aaaaaaaaaaa"};
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#ifndef QT_NO_DRAGANDDROP
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//#define QDND_DEBUG
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#ifdef QDND_DEBUG
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QString dragActionsToString(Qt::DropActions actions)
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{
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QString str;
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if (actions == Qt::IgnoreAction) {
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if (!str.isEmpty())
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str += " | ";
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str += "IgnoreAction";
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}
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if (actions & Qt::LinkAction) {
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if (!str.isEmpty())
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str += " | ";
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str += "LinkAction";
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}
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if (actions & Qt::CopyAction) {
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if (!str.isEmpty())
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str += " | ";
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str += "CopyAction";
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}
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if (actions & Qt::MoveAction) {
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if (!str.isEmpty())
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str += " | ";
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str += "MoveAction";
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}
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if ((actions & Qt::TargetMoveAction) == Qt::TargetMoveAction ) {
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if (!str.isEmpty())
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str += " | ";
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str += "TargetMoveAction";
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}
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return str;
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}
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QString KeyboardModifiersToString(Qt::KeyboardModifiers moderfies)
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{
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QString str;
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if (moderfies & Qt::ControlModifier) {
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if (!str.isEmpty())
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str += " | ";
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str += Qt::ControlModifier;
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}
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if (moderfies & Qt::AltModifier) {
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if (!str.isEmpty())
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str += " | ";
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str += Qt::AltModifier;
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}
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if (moderfies & Qt::ShiftModifier) {
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if (!str.isEmpty())
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str += " | ";
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str += Qt::ShiftModifier;
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}
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return str;
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}
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#endif
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// the universe's only drag manager
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QDragManager *QDragManager::instance = 0;
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QDragManager::QDragManager()
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: QObject(qApp)
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{
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Q_ASSERT(!instance);
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328 |
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#ifdef Q_WS_WIN
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n_cursor = 4;
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#else
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n_cursor = 3;
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#endif
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#ifdef Q_WS_QWS
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currentActionForOverrideCursor = Qt::IgnoreAction;
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#endif
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pm_cursor = new QPixmap[n_cursor];
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pm_cursor[0] = QPixmap((const char **)move_xpm);
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pm_cursor[1] = QPixmap((const char **)copy_xpm);
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pm_cursor[2] = QPixmap((const char **)link_xpm);
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#ifdef Q_WS_WIN
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pm_cursor[3] = QPixmap((const char **)ignore_xpm);
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#endif
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object = 0;
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beingCancelled = false;
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restoreCursor = false;
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willDrop = false;
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eventLoop = 0;
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dropData = new QDropData();
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351 |
currentDropTarget = 0;
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352 |
#ifdef Q_WS_X11
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xdndMimeTransferedPixmapIndex = 0;
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#endif
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}
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356 |
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357 |
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358 |
QDragManager::~QDragManager()
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359 |
{
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360 |
#ifndef QT_NO_CURSOR
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361 |
if (restoreCursor)
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362 |
QApplication::restoreOverrideCursor();
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363 |
#endif
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364 |
instance = 0;
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365 |
delete [] pm_cursor;
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366 |
delete dropData;
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367 |
}
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368 |
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369 |
QDragManager *QDragManager::self()
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370 |
{
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371 |
if (!instance && !QApplication::closingDown())
|
|
|
372 |
instance = new QDragManager;
|
|
|
373 |
return instance;
|
|
|
374 |
}
|
|
|
375 |
|
|
|
376 |
QPixmap QDragManager::dragCursor(Qt::DropAction action) const
|
|
|
377 |
{
|
|
|
378 |
QDragPrivate * d = dragPrivate();
|
|
|
379 |
if (d && d->customCursors.contains(action))
|
|
|
380 |
return d->customCursors[action];
|
|
|
381 |
else if (action == Qt::MoveAction)
|
|
|
382 |
return pm_cursor[0];
|
|
|
383 |
else if (action == Qt::CopyAction)
|
|
|
384 |
return pm_cursor[1];
|
|
|
385 |
else if (action == Qt::LinkAction)
|
|
|
386 |
return pm_cursor[2];
|
|
|
387 |
#ifdef Q_WS_WIN
|
|
|
388 |
else if (action == Qt::IgnoreAction)
|
|
|
389 |
return pm_cursor[3];
|
|
|
390 |
#endif
|
|
|
391 |
return QPixmap();
|
|
|
392 |
}
|
|
|
393 |
|
|
|
394 |
bool QDragManager::hasCustomDragCursors() const
|
|
|
395 |
{
|
|
|
396 |
QDragPrivate * d = dragPrivate();
|
|
|
397 |
return d && !d->customCursors.isEmpty();
|
|
|
398 |
}
|
|
|
399 |
|
|
|
400 |
Qt::DropAction QDragManager::defaultAction(Qt::DropActions possibleActions,
|
|
|
401 |
Qt::KeyboardModifiers modifiers) const
|
|
|
402 |
{
|
|
|
403 |
#ifdef QDND_DEBUG
|
|
|
404 |
qDebug("QDragManager::defaultAction(Qt::DropActions possibleActions)");
|
|
|
405 |
qDebug("keyboard modifiers : %s", KeyboardModifiersToString(modifiers).latin1());
|
|
|
406 |
#endif
|
|
|
407 |
|
|
|
408 |
QDragPrivate *d = dragPrivate();
|
|
|
409 |
Qt::DropAction defaultAction = d ? d->defaultDropAction : Qt::IgnoreAction;
|
|
|
410 |
|
|
|
411 |
if (defaultAction == Qt::IgnoreAction) {
|
|
|
412 |
//This means that the drag was initiated by QDrag::start and we need to
|
|
|
413 |
//preserve the old behavior
|
|
|
414 |
#ifdef Q_WS_MAC
|
|
|
415 |
defaultAction = Qt::MoveAction;
|
|
|
416 |
#else
|
|
|
417 |
defaultAction = Qt::CopyAction;
|
|
|
418 |
#endif
|
|
|
419 |
}
|
|
|
420 |
|
|
|
421 |
#ifdef Q_WS_MAC
|
|
|
422 |
if (modifiers & Qt::ControlModifier && modifiers & Qt::AltModifier)
|
|
|
423 |
defaultAction = Qt::LinkAction;
|
|
|
424 |
else if (modifiers & Qt::AltModifier)
|
|
|
425 |
defaultAction = Qt::CopyAction;
|
|
|
426 |
else if (modifiers & Qt::ControlModifier)
|
|
|
427 |
defaultAction = Qt::MoveAction;
|
|
|
428 |
#else
|
|
|
429 |
if (modifiers & Qt::ControlModifier && modifiers & Qt::ShiftModifier)
|
|
|
430 |
defaultAction = Qt::LinkAction;
|
|
|
431 |
else if (modifiers & Qt::ControlModifier)
|
|
|
432 |
defaultAction = Qt::CopyAction;
|
|
|
433 |
else if (modifiers & Qt::ShiftModifier)
|
|
|
434 |
defaultAction = Qt::MoveAction;
|
|
|
435 |
else if (modifiers & Qt::AltModifier)
|
|
|
436 |
defaultAction = Qt::LinkAction;
|
|
|
437 |
#endif
|
|
|
438 |
|
|
|
439 |
// if the object is set take the list of possibles from it
|
|
|
440 |
if (object)
|
|
|
441 |
possibleActions = object->d_func()->possible_actions;
|
|
|
442 |
|
|
|
443 |
#ifdef QDND_DEBUG
|
|
|
444 |
qDebug("possible actions : %s", dragActionsToString(possibleActions).latin1());
|
|
|
445 |
#endif
|
|
|
446 |
|
|
|
447 |
// Check if the action determined is allowed
|
|
|
448 |
if (!(possibleActions & defaultAction)) {
|
|
|
449 |
if (possibleActions & Qt::CopyAction)
|
|
|
450 |
defaultAction = Qt::CopyAction;
|
|
|
451 |
else if (possibleActions & Qt::MoveAction)
|
|
|
452 |
defaultAction = Qt::MoveAction;
|
|
|
453 |
else if (possibleActions & Qt::LinkAction)
|
|
|
454 |
defaultAction = Qt::LinkAction;
|
|
|
455 |
else
|
|
|
456 |
defaultAction = Qt::IgnoreAction;
|
|
|
457 |
}
|
|
|
458 |
|
|
|
459 |
#ifdef QDND_DEBUG
|
|
|
460 |
qDebug("default action : %s", dragActionsToString(defaultAction).latin1());
|
|
|
461 |
#endif
|
|
|
462 |
|
|
|
463 |
return defaultAction;
|
|
|
464 |
}
|
|
|
465 |
|
|
|
466 |
void QDragManager::setCurrentTarget(QWidget *target, bool dropped)
|
|
|
467 |
{
|
|
|
468 |
if (currentDropTarget == target)
|
|
|
469 |
return;
|
|
|
470 |
|
|
|
471 |
currentDropTarget = target;
|
|
|
472 |
if (!dropped && object) {
|
|
|
473 |
object->d_func()->target = target;
|
|
|
474 |
emit object->targetChanged(target);
|
|
|
475 |
}
|
|
|
476 |
|
|
|
477 |
}
|
|
|
478 |
|
|
|
479 |
QWidget *QDragManager::currentTarget()
|
|
|
480 |
{
|
|
|
481 |
return currentDropTarget;
|
|
|
482 |
}
|
|
|
483 |
|
|
|
484 |
#endif
|
|
|
485 |
|
|
|
486 |
QDropData::QDropData()
|
|
|
487 |
: QInternalMimeData()
|
|
|
488 |
{
|
|
|
489 |
}
|
|
|
490 |
|
|
|
491 |
QDropData::~QDropData()
|
|
|
492 |
{
|
|
|
493 |
}
|
|
|
494 |
#endif // QT_NO_DRAGANDDROP
|
|
|
495 |
|
|
|
496 |
#if !(defined(QT_NO_DRAGANDDROP) && defined(QT_NO_CLIPBOARD))
|
|
|
497 |
|
|
|
498 |
static QStringList imageReadMimeFormats()
|
|
|
499 |
{
|
|
|
500 |
QStringList formats;
|
|
|
501 |
QList<QByteArray> imageFormats = QImageReader::supportedImageFormats();
|
|
|
502 |
for (int i = 0; i < imageFormats.size(); ++i) {
|
|
|
503 |
QString format = QLatin1String("image/");
|
|
|
504 |
format += QString::fromLatin1(imageFormats.at(i).toLower());
|
|
|
505 |
formats.append(format);
|
|
|
506 |
}
|
|
|
507 |
|
|
|
508 |
//put png at the front because it is best
|
|
|
509 |
int pngIndex = formats.indexOf(QLatin1String("image/png"));
|
|
|
510 |
if (pngIndex != -1 && pngIndex != 0)
|
|
|
511 |
formats.move(pngIndex, 0);
|
|
|
512 |
|
|
|
513 |
return formats;
|
|
|
514 |
}
|
|
|
515 |
|
|
|
516 |
|
|
|
517 |
static QStringList imageWriteMimeFormats()
|
|
|
518 |
{
|
|
|
519 |
QStringList formats;
|
|
|
520 |
QList<QByteArray> imageFormats = QImageWriter::supportedImageFormats();
|
|
|
521 |
for (int i = 0; i < imageFormats.size(); ++i) {
|
|
|
522 |
QString format = QLatin1String("image/");
|
|
|
523 |
format += QString::fromLatin1(imageFormats.at(i).toLower());
|
|
|
524 |
formats.append(format);
|
|
|
525 |
}
|
|
|
526 |
|
|
|
527 |
//put png at the front because it is best
|
|
|
528 |
int pngIndex = formats.indexOf(QLatin1String("image/png"));
|
|
|
529 |
if (pngIndex != -1 && pngIndex != 0)
|
|
|
530 |
formats.move(pngIndex, 0);
|
|
|
531 |
|
|
|
532 |
return formats;
|
|
|
533 |
}
|
|
|
534 |
|
|
|
535 |
QInternalMimeData::QInternalMimeData()
|
|
|
536 |
: QMimeData()
|
|
|
537 |
{
|
|
|
538 |
}
|
|
|
539 |
|
|
|
540 |
QInternalMimeData::~QInternalMimeData()
|
|
|
541 |
{
|
|
|
542 |
}
|
|
|
543 |
|
|
|
544 |
bool QInternalMimeData::hasFormat(const QString &mimeType) const
|
|
|
545 |
{
|
|
|
546 |
bool foundFormat = hasFormat_sys(mimeType);
|
|
|
547 |
if (!foundFormat && mimeType == QLatin1String("application/x-qt-image")) {
|
|
|
548 |
QStringList imageFormats = imageReadMimeFormats();
|
|
|
549 |
for (int i = 0; i < imageFormats.size(); ++i) {
|
|
|
550 |
if ((foundFormat = hasFormat_sys(imageFormats.at(i))))
|
|
|
551 |
break;
|
|
|
552 |
}
|
|
|
553 |
}
|
|
|
554 |
return foundFormat;
|
|
|
555 |
}
|
|
|
556 |
|
|
|
557 |
QStringList QInternalMimeData::formats() const
|
|
|
558 |
{
|
|
|
559 |
QStringList realFormats = formats_sys();
|
|
|
560 |
if (!realFormats.contains(QLatin1String("application/x-qt-image"))) {
|
|
|
561 |
QStringList imageFormats = imageReadMimeFormats();
|
|
|
562 |
for (int i = 0; i < imageFormats.size(); ++i) {
|
|
|
563 |
if (realFormats.contains(imageFormats.at(i))) {
|
|
|
564 |
realFormats += QLatin1String("application/x-qt-image");
|
|
|
565 |
break;
|
|
|
566 |
}
|
|
|
567 |
}
|
|
|
568 |
}
|
|
|
569 |
return realFormats;
|
|
|
570 |
}
|
|
|
571 |
|
|
|
572 |
QVariant QInternalMimeData::retrieveData(const QString &mimeType, QVariant::Type type) const
|
|
|
573 |
{
|
|
|
574 |
QVariant data = retrieveData_sys(mimeType, type);
|
|
|
575 |
if (mimeType == QLatin1String("application/x-qt-image")) {
|
|
|
576 |
if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty())) {
|
|
|
577 |
// try to find an image
|
|
|
578 |
QStringList imageFormats = imageReadMimeFormats();
|
|
|
579 |
for (int i = 0; i < imageFormats.size(); ++i) {
|
|
|
580 |
data = retrieveData_sys(imageFormats.at(i), type);
|
|
|
581 |
if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty()))
|
|
|
582 |
continue;
|
|
|
583 |
break;
|
|
|
584 |
}
|
|
|
585 |
}
|
|
|
586 |
// we wanted some image type, but all we got was a byte array. Convert it to an image.
|
|
|
587 |
if (data.type() == QVariant::ByteArray
|
|
|
588 |
&& (type == QVariant::Image || type == QVariant::Pixmap || type == QVariant::Bitmap))
|
|
|
589 |
data = QImage::fromData(data.toByteArray());
|
|
|
590 |
|
|
|
591 |
} else if (mimeType == QLatin1String("application/x-color") && data.type() == QVariant::ByteArray) {
|
|
|
592 |
QColor c;
|
|
|
593 |
QByteArray ba = data.toByteArray();
|
|
|
594 |
if (ba.size() == 8) {
|
|
|
595 |
ushort * colBuf = (ushort *)ba.data();
|
|
|
596 |
c.setRgbF(qreal(colBuf[0]) / qreal(0xFFFF),
|
|
|
597 |
qreal(colBuf[1]) / qreal(0xFFFF),
|
|
|
598 |
qreal(colBuf[2]) / qreal(0xFFFF),
|
|
|
599 |
qreal(colBuf[3]) / qreal(0xFFFF));
|
|
|
600 |
data = c;
|
|
|
601 |
} else {
|
|
|
602 |
qWarning("Qt: Invalid color format");
|
|
|
603 |
}
|
|
|
604 |
} else if (data.type() != type && data.type() == QVariant::ByteArray) {
|
|
|
605 |
// try to use mime data's internal conversion stuf.
|
|
|
606 |
QInternalMimeData *that = const_cast<QInternalMimeData *>(this);
|
|
|
607 |
that->setData(mimeType, data.toByteArray());
|
|
|
608 |
data = QMimeData::retrieveData(mimeType, type);
|
|
|
609 |
that->clear();
|
|
|
610 |
}
|
|
|
611 |
return data;
|
|
|
612 |
}
|
|
|
613 |
|
|
|
614 |
bool QInternalMimeData::canReadData(const QString &mimeType)
|
|
|
615 |
{
|
|
|
616 |
return imageReadMimeFormats().contains(mimeType);
|
|
|
617 |
}
|
|
|
618 |
|
|
|
619 |
// helper functions for rendering mimedata to the system, this is needed because QMimeData is in core.
|
|
|
620 |
QStringList QInternalMimeData::formatsHelper(const QMimeData *data)
|
|
|
621 |
{
|
|
|
622 |
QStringList realFormats = data->formats();
|
|
|
623 |
if (realFormats.contains(QLatin1String("application/x-qt-image"))) {
|
|
|
624 |
// add all supported image formats
|
|
|
625 |
QStringList imageFormats = imageWriteMimeFormats();
|
|
|
626 |
for (int i = 0; i < imageFormats.size(); ++i) {
|
|
|
627 |
if (!realFormats.contains(imageFormats.at(i)))
|
|
|
628 |
realFormats.append(imageFormats.at(i));
|
|
|
629 |
}
|
|
|
630 |
}
|
|
|
631 |
return realFormats;
|
|
|
632 |
}
|
|
|
633 |
|
|
|
634 |
bool QInternalMimeData::hasFormatHelper(const QString &mimeType, const QMimeData *data)
|
|
|
635 |
{
|
|
|
636 |
|
|
|
637 |
bool foundFormat = data->hasFormat(mimeType);
|
|
|
638 |
if (!foundFormat) {
|
|
|
639 |
if (mimeType == QLatin1String("application/x-qt-image")) {
|
|
|
640 |
// check all supported image formats
|
|
|
641 |
QStringList imageFormats = imageWriteMimeFormats();
|
|
|
642 |
for (int i = 0; i < imageFormats.size(); ++i) {
|
|
|
643 |
if ((foundFormat = data->hasFormat(imageFormats.at(i))))
|
|
|
644 |
break;
|
|
|
645 |
}
|
|
|
646 |
} else if (mimeType.startsWith(QLatin1String("image/"))) {
|
|
|
647 |
return data->hasImage() && imageWriteMimeFormats().contains(mimeType);
|
|
|
648 |
}
|
|
|
649 |
}
|
|
|
650 |
return foundFormat;
|
|
|
651 |
}
|
|
|
652 |
|
|
|
653 |
QByteArray QInternalMimeData::renderDataHelper(const QString &mimeType, const QMimeData *data)
|
|
|
654 |
{
|
|
|
655 |
QByteArray ba;
|
|
|
656 |
if (mimeType == QLatin1String("application/x-color")) {
|
|
|
657 |
/* QMimeData can only provide colors as QColor or the name
|
|
|
658 |
of a color as a QByteArray or a QString. So we need to do
|
|
|
659 |
the conversion to application/x-color here.
|
|
|
660 |
The application/x-color format is :
|
|
|
661 |
type: application/x-color
|
|
|
662 |
format: 16
|
|
|
663 |
data[0]: red
|
|
|
664 |
data[1]: green
|
|
|
665 |
data[2]: blue
|
|
|
666 |
data[3]: opacity
|
|
|
667 |
*/
|
|
|
668 |
ba.resize(8);
|
|
|
669 |
ushort * colBuf = (ushort *)ba.data();
|
|
|
670 |
QColor c = qvariant_cast<QColor>(data->colorData());
|
|
|
671 |
colBuf[0] = ushort(c.redF() * 0xFFFF);
|
|
|
672 |
colBuf[1] = ushort(c.greenF() * 0xFFFF);
|
|
|
673 |
colBuf[2] = ushort(c.blueF() * 0xFFFF);
|
|
|
674 |
colBuf[3] = ushort(c.alphaF() * 0xFFFF);
|
|
|
675 |
} else {
|
|
|
676 |
ba = data->data(mimeType);
|
|
|
677 |
if (ba.isEmpty()) {
|
|
|
678 |
if (mimeType == QLatin1String("application/x-qt-image") && data->hasImage()) {
|
|
|
679 |
QImage image = qvariant_cast<QImage>(data->imageData());
|
|
|
680 |
QBuffer buf(&ba);
|
|
|
681 |
buf.open(QBuffer::WriteOnly);
|
|
|
682 |
// would there not be PNG ??
|
|
|
683 |
image.save(&buf, "PNG");
|
|
|
684 |
} else if (mimeType.startsWith(QLatin1String("image/")) && data->hasImage()) {
|
|
|
685 |
QImage image = qvariant_cast<QImage>(data->imageData());
|
|
|
686 |
QBuffer buf(&ba);
|
|
|
687 |
buf.open(QBuffer::WriteOnly);
|
|
|
688 |
image.save(&buf, mimeType.mid(mimeType.indexOf(QLatin1Char('/')) + 1).toLatin1().toUpper());
|
|
|
689 |
}
|
|
|
690 |
}
|
|
|
691 |
}
|
|
|
692 |
return ba;
|
|
|
693 |
}
|
|
|
694 |
|
|
|
695 |
#endif // QT_NO_DRAGANDDROP && QT_NO_CLIPBOARD
|
|
|
696 |
|
|
|
697 |
QT_END_NAMESPACE
|