File indexing completed on 2024-05-12 04:21:20

0001 
0002 /*
0003    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
0004    All rights reserved.
0005 
0006    Redistribution and use in source and binary forms, with or without
0007    modification, are permitted provided that the following conditions
0008    are met:
0009 
0010    1. Redistributions of source code must retain the above copyright
0011       notice, this list of conditions and the following disclaimer.
0012    2. Redistributions in binary form must reproduce the above copyright
0013       notice, this list of conditions and the following disclaimer in the
0014       documentation and/or other materials provided with the distribution.
0015 
0016    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
0017    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
0018    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
0019    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
0020    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
0021    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
0022    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
0023    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0024    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
0025    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0026 */
0027 
0028 
0029 #define DEBUG_KP_SELECTION 0
0030 
0031 
0032 #include "kpSelectionFactory.h"
0033 
0034 #include <QDataStream>
0035 
0036 #include "layers/selections/image/kpRectangularImageSelection.h"
0037 #include "layers/selections/image/kpEllipticalImageSelection.h"
0038 #include "layers/selections/image/kpFreeFormImageSelection.h"
0039 
0040 //---------------------------------------------------------------------
0041 
0042 // public static
0043 // TODO: KolourPaint has not been tested against invalid or malicious
0044 //       clipboard data [Bug #28].
0045 kpAbstractImageSelection *kpSelectionFactory::FromStream (QDataStream &stream)
0046 {
0047 #if DEBUG_KP_SELECTION && 1
0048     qCDebug(kpLogLayers) << "kpSelectionFactory::FromStream()";
0049 #endif
0050     int serialID;
0051     stream >> serialID;
0052 
0053 #if DEBUG_KP_SELECTION && 1
0054     qCDebug(kpLogLayers) << "\tserialID=" << serialID;
0055 #endif
0056 
0057     // Only image selections are marshalled.
0058     //
0059     // Text selections are only ever seen in the clipboard as ordinary text,
0060     // not selections, since copying text formatting over the clipboard doesn't
0061     // seem compelling.
0062     kpAbstractImageSelection *imageSel = nullptr;
0063     switch (serialID)
0064     {
0065     case kpRectangularImageSelection::SerialID:
0066         imageSel = new kpRectangularImageSelection ();
0067         break;
0068 
0069     case kpEllipticalImageSelection::SerialID:
0070         imageSel = new kpEllipticalImageSelection ();
0071         break;
0072 
0073     case kpFreeFormImageSelection::SerialID:
0074         imageSel = new kpFreeFormImageSelection ();
0075         break;
0076     }
0077 
0078     // Unknown selection type?
0079     if (imageSel == nullptr)
0080     {
0081         return nullptr;
0082     }
0083 
0084     if (!imageSel->readFromStream (stream))
0085     {
0086         delete imageSel;
0087         return nullptr;
0088     }
0089 
0090     return imageSel;
0091 }
0092 
0093 //---------------------------------------------------------------------