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171 lines
3.6 KiB
171 lines
3.6 KiB
/* This file is part of the KDE project
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Copyright (C) 2002, The Karbon Developers
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <tqcursor.h>
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#include <tqevent.h>
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#include <tdelocale.h>
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#include "vzoomtool.h"
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#include <karbon_part.h>
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#include <karbon_part.h>
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#include <karbon_view.h>
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#include <karbon_view.h>
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#include <render/vpainter.h>
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#include <render/vpainterfactory.h>
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#include <core/vcursor.h>
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VZoomTool::VZoomTool(KarbonView *view ): VTool( view, "tool_zoom_plugin" )
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{
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m_plusCursor = new TQCursor( VCursor::createCursor( VCursor::ZoomPlus ) );
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registerTool( this );
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}
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VZoomTool::~VZoomTool()
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{
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delete m_plusCursor;
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}
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TQString
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VZoomTool::contextHelp()
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{
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TQString s = i18n( "<qt><b>Zoom tool:</b><br>" );
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s += i18n( "<i>Click and drag</i> to zoom into a rectangular area.<br>" );
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s += i18n( "<i>Right click</i> to zoom out of canvas.<br>" );
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s += i18n( "<i>Pressing +/- keys</i><br>to zoom into/out of canvas." );
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return s;
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}
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void
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VZoomTool::activate()
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{
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VTool::activate();
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view()->setCursor( *m_plusCursor );
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}
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TQString
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VZoomTool::statusText()
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{
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return i18n( "Zoom Tool" );
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}
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void
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VZoomTool::deactivate()
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{
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}
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void
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VZoomTool::draw()
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{
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VPainter *painter = view()->painterFactory()->editpainter();
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painter->setRasterOp( TQt::NotROP );
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if( isDragging() )
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{
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painter->setPen( TQt::DotLine );
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painter->newPath();
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painter->moveTo( KoPoint( first().x(), first().y() ) );
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painter->lineTo( KoPoint( m_current.x(), first().y() ) );
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painter->lineTo( KoPoint( m_current.x(), m_current.y() ) );
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painter->lineTo( KoPoint( first().x(), m_current.y() ) );
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painter->lineTo( KoPoint( first().x(), first().y() ) );
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painter->strokePath();
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}
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}
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void
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VZoomTool::mouseButtonPress()
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{
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m_current = first();
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recalc();
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draw();
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}
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void
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VZoomTool::rightMouseButtonRelease()
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{
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view()->setZoomAt( view()->zoom() * 0.75, last() );
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}
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void
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VZoomTool::mouseButtonRelease()
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{
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view()->setZoomAt( view()->zoom() * 1.5, last() );
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}
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void
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VZoomTool::mouseDrag()
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{
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draw();
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recalc();
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draw();
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}
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void
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VZoomTool::mouseDragRelease()
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{
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KoRect rect( first().x(), first().y(), last().x() - first().x(), last().y() - first().y() );
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rect = rect.normalize();
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view()->setViewportRect( rect );
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}
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bool
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VZoomTool::keyReleased( TQt::Key key )
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{
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double zoomChange = 0;
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if( key == TQt::Key_Minus )
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zoomChange = 0.75;
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else if( key == TQt::Key_Plus )
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zoomChange = 1.50;
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if( zoomChange != 0 )
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{
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view()->setZoomAt( view()->zoom() * zoomChange );
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return true;
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}
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return false;
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}
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void
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VZoomTool::recalc()
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{
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m_current = last();
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}
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void
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VZoomTool::setup( TDEActionCollection *collection )
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{
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m_action = static_cast<TDERadioAction *>(collection -> action( name() ) );
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if( m_action == 0 )
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{
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m_action = new TDERadioAction( i18n( "Zoom Tool" ), "14_zoom", TQt::SHIFT+TQt::Key_H, this, TQT_SLOT( activate() ), collection, name() );
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m_action->setToolTip( i18n( "Zoom" ) );
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m_action->setExclusiveGroup( "misc" );
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//m_ownAction = true;
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}
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}
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