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141 lines
3.5 KiB
C++
141 lines
3.5 KiB
C++
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/*
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Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define DEBUG_KP_TOOL_FLOW_COMMAND 0
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#include <kpToolFlowCommand.h>
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#include <qrect.h>
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#include <kpDocument.h>
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#include <kpImage.h>
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#include <kpPixmapFX.h>
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#include <kpTool.h>
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#include <kpViewManager.h>
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struct kpToolFlowCommandPrivate
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{
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kpImage image;
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QRect boundingRect;
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};
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kpToolFlowCommand::kpToolFlowCommand (const QString &name, kpCommandEnvironment *environ)
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: kpNamedCommand (name, environ),
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d (new kpToolFlowCommandPrivate ())
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{
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d->image = document ()->image ();
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}
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kpToolFlowCommand::~kpToolFlowCommand ()
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{
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delete d;
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}
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// public virtual [base kpCommand]
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kpCommandSize::SizeType kpToolFlowCommand::size () const
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{
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return ImageSize (d->image);
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}
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// public virtual [base kpCommand]
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void kpToolFlowCommand::execute ()
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{
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swapOldAndNew ();
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}
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// public virtual [base kpCommand]
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void kpToolFlowCommand::unexecute ()
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{
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swapOldAndNew ();
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}
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// private
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void kpToolFlowCommand::swapOldAndNew ()
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{
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if (d->boundingRect.isValid ())
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{
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const kpImage oldImage = document ()->getImageAt (d->boundingRect);
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document ()->setImageAt (d->image, d->boundingRect.topLeft ());
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d->image = oldImage;
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}
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}
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// public
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void kpToolFlowCommand::updateBoundingRect (const QPoint &point)
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{
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updateBoundingRect (QRect (point, point));
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}
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// public
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void kpToolFlowCommand::updateBoundingRect (const QRect &rect)
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{
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#if DEBUG_KP_TOOL_FLOW_COMMAND & 0
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kDebug () << "kpToolFlowCommand::updateBoundingRect() existing="
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<< d->boundingRect
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<< " plus="
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<< rect
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<< endl;
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#endif
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d->boundingRect = d->boundingRect.unite (rect);
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#if DEBUG_KP_TOOL_FLOW_COMMAND & 0
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kDebug () << "\tresult=" << d->boundingRect;
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#endif
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}
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// public
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void kpToolFlowCommand::finalize ()
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{
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if (d->boundingRect.isValid ())
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{
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// Store only the needed part of doc image.
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d->image = kpTool::neededPixmap (d->image, d->boundingRect);
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}
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else
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{
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d->image = kpImage ();
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}
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}
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// public
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void kpToolFlowCommand::cancel ()
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{
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if (d->boundingRect.isValid ())
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{
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viewManager ()->setFastUpdates ();
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document ()->setImageAt (d->image, d->boundingRect.topLeft ());
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viewManager ()->restoreFastUpdates ();
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}
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}
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