File indexing completed on 2024-12-22 04:07:22

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 #include "kpEffectCommandBase.h"
0030 
0031 #include "kpDefs.h"
0032 #include "document/kpDocument.h"
0033 #include "generic/kpSetOverrideCursorSaver.h"
0034 
0035 #include <KLocalizedString>
0036 
0037 #include <QCursor>
0038 
0039 //--------------------------------------------------------------------------------
0040 
0041 struct kpEffectCommandBasePrivate
0042 {
0043     QString name;
0044     bool actOnSelection{false};
0045 
0046     kpImage oldImage;
0047 };
0048 
0049 kpEffectCommandBase::kpEffectCommandBase (const QString &name,
0050         bool actOnSelection,
0051         kpCommandEnvironment *environ)
0052     : kpCommand (environ),
0053       d (new kpEffectCommandBasePrivate ())
0054 {
0055     d->name = name;
0056     d->actOnSelection = actOnSelection;
0057 }
0058 
0059 kpEffectCommandBase::~kpEffectCommandBase ()
0060 {
0061     delete d;
0062 }
0063 
0064 
0065 // public virtual [base kpCommand]
0066 QString kpEffectCommandBase::name () const
0067 {
0068     return (d->actOnSelection) ? i18n ("Selection: %1", d->name) : d->name;
0069 }
0070 
0071 
0072 // public virtual [base kpCommand]
0073 kpCommandSize::SizeType kpEffectCommandBase::size () const
0074 {
0075     return ImageSize (d->oldImage);
0076 }
0077 
0078 
0079 // public virtual [base kpCommand]
0080 void kpEffectCommandBase::execute ()
0081 {
0082     kpSetOverrideCursorSaver cursorSaver (Qt::WaitCursor);
0083 
0084     kpDocument *doc = document ();
0085     Q_ASSERT (doc);
0086 
0087 
0088     const kpImage oldImage = doc->image (d->actOnSelection);
0089 
0090     if (!isInvertible ())
0091     {
0092         d->oldImage = oldImage;
0093     }
0094 
0095 
0096     kpImage newImage = /*pure virtual*/applyEffect (oldImage);
0097 
0098     doc->setImage (d->actOnSelection, newImage);
0099 }
0100 
0101 // public virtual [base kpCommand]
0102 void kpEffectCommandBase::unexecute ()
0103 {
0104     kpSetOverrideCursorSaver cursorSaver (Qt::WaitCursor);
0105 
0106     kpDocument *doc = document ();
0107     Q_ASSERT (doc);
0108 
0109 
0110     kpImage newImage;
0111 
0112     if (!isInvertible ())
0113     {
0114         newImage = d->oldImage;
0115     }
0116     else
0117     {
0118         newImage = /*pure virtual*/applyEffect (doc->image (d->actOnSelection));
0119     }
0120 
0121     doc->setImage (d->actOnSelection, newImage);
0122 
0123 
0124     d->oldImage = kpImage ();
0125 }
0126