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koffice/karbon/tools/vrotatetool.cc

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/* This file is part of the KDE project
Copyright (C) 2001, 2002, 2003 The Karbon Developers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <math.h>
#include <qcursor.h>
#include <qlabel.h>
#include <klocale.h>
#include <KoRect.h>
#include <karbon_part.h>
#include <karbon_view.h>
#include <core/vglobal.h>
#include "vrotatetool.h"
#include <render/vpainter.h>
#include <render/vpainterfactory.h>
#include <commands/vtransformcmd.h>
#include <kdebug.h>
VRotateTool::VRotateTool( KarbonView *view )
: VTool( view, "tool_rotate" )
{
m_objects.setAutoDelete( true );
registerTool( this );
}
VRotateTool::~VRotateTool()
{
m_objects.clear();
}
void
VRotateTool::activate()
{
view()->setCursor( QCursor( Qt::arrowCursor ) );
view()->part()->document().selection()->setState( VObject::selected );
view()->part()->document().selection()->showHandle( false );
VTool::activate();
}
QString
VRotateTool::statusText()
{
return i18n( "Rotate" );
}
void
VRotateTool::draw()
{
VPainter* painter = view()->painterFactory()->editpainter();
//painter->setZoomFactor( view()->zoom() );
painter->setRasterOp( Qt::NotROP );
VObjectListIterator itr = m_objects;
for( ; itr.current(); ++itr )
{
itr.current()->draw( painter, &itr.current()->boundingBox() );
}
}
void
VRotateTool::mouseButtonPress()
{
//view()->painterFactory()->painter()->end();
recalc();
// Draw new object:
draw();
}
void
VRotateTool::mouseDrag()
{
// Erase old object:
draw();
recalc();
// Draw new object:
draw();
}
void
VRotateTool::mouseDragRelease()
{
view()->part()->addCommand(
new VRotateCmd(
&view()->part()->document(),
m_center,
m_angle, altPressed() ),
true );
}
void
VRotateTool::cancel()
{
// Erase old object:
if ( isDragging() )
{
draw();
view()->repaintAll( view()->part()->document().selection()->boundingBox() );
}
}
void
VRotateTool::recalc()
{
// Get center:
m_center = view()->part()->document().selection()->boundingBox().center();
// Calculate angle between vector (last - center) and (first - center):
m_angle = VGlobal::one_pi_180 * (
atan2(
last().y() - m_center.y(),
last().x() - m_center.x() )
-
atan2(
first().y() - m_center.y(),
first().x() - m_center.x() ) );
VRotateCmd cmd( 0L, m_center, m_angle );
// Copy selected objects and transform:
m_objects.clear();
VObject* copy;
VObjectListIterator itr = view()->part()->document().selection()->objects();
for ( ; itr.current() ; ++itr )
{
if( itr.current()->state() != VObject::deleted )
{
copy = itr.current()->clone();
cmd.visit( *copy );
copy->setState( VObject::edit );
m_objects.append( copy );
}
}
}
void
VRotateTool::setup( KActionCollection *collection )
{
m_action = static_cast<KRadioAction *>(collection -> action( name() ) );
if( m_action == 0 )
{
m_action = new KRadioAction( i18n( "Rotate Tool" ), "14_rotate", Qt::SHIFT+Qt::Key_H, this, SLOT( activate() ), collection, name() );
m_action->setToolTip( i18n( "Rotate" ) );
m_action->setExclusiveGroup( "manipulation" );
//m_ownAction = true;
}
}