diff options
Diffstat (limited to 'karbon/plugins/zoomtool/vzoomtool.cc')
| -rw-r--r-- | karbon/plugins/zoomtool/vzoomtool.cc | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/karbon/plugins/zoomtool/vzoomtool.cc b/karbon/plugins/zoomtool/vzoomtool.cc new file mode 100644 index 00000000..60142481 --- /dev/null +++ b/karbon/plugins/zoomtool/vzoomtool.cc @@ -0,0 +1,170 @@ +/* This file is part of the KDE project + Copyright (C) 2002, 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 <qcursor.h> +#include <qevent.h> + +#include <klocale.h> + +#include "vzoomtool.h" +#include <karbon_part.h> +#include <karbon_part.h> +#include <karbon_view.h> +#include <karbon_view.h> +#include <render/vpainter.h> +#include <render/vpainterfactory.h> +#include <core/vcursor.h> + +VZoomTool::VZoomTool(KarbonView *view ): VTool( view, "tool_zoom_plugin" ) +{ + m_plusCursor = new QCursor( VCursor::createCursor( VCursor::ZoomPlus ) ); + + registerTool( this ); +} + +VZoomTool::~VZoomTool() +{ + delete m_plusCursor; +} + +QString +VZoomTool::contextHelp() +{ + QString s = i18n( "<qt><b>Zoom tool:</b><br>" ); + s += i18n( "<i>Click and drag</i> to zoom into a rectangular area.<br>" ); + s += i18n( "<i>Right click</i> to zoom out of canvas.<br>" ); + s += i18n( "<i>Pressing +/- keys</i><br>to zoom into/out of canvas." ); + return s; +} + +void +VZoomTool::activate() +{ + VTool::activate(); + view()->setCursor( *m_plusCursor ); +} + +QString +VZoomTool::statusText() +{ + return i18n( "Zoom Tool" ); +} + +void +VZoomTool::deactivate() +{ +} + +void +VZoomTool::draw() +{ + VPainter *painter = view()->painterFactory()->editpainter(); + painter->setRasterOp( Qt::NotROP ); + + if( isDragging() ) + { + painter->setPen( Qt::DotLine ); + painter->newPath(); + painter->moveTo( KoPoint( first().x(), first().y() ) ); + painter->lineTo( KoPoint( m_current.x(), first().y() ) ); + painter->lineTo( KoPoint( m_current.x(), m_current.y() ) ); + painter->lineTo( KoPoint( first().x(), m_current.y() ) ); + painter->lineTo( KoPoint( first().x(), first().y() ) ); + painter->strokePath(); + } +} + +void +VZoomTool::mouseButtonPress() +{ + m_current = first(); + + recalc(); + + draw(); +} + +void +VZoomTool::rightMouseButtonRelease() +{ + view()->setZoomAt( view()->zoom() * 0.75, last() ); +} + +void +VZoomTool::mouseButtonRelease() +{ + view()->setZoomAt( view()->zoom() * 1.5, last() ); +} + +void +VZoomTool::mouseDrag() +{ + draw(); + + recalc(); + + draw(); +} + +void +VZoomTool::mouseDragRelease() +{ + KoRect rect( first().x(), first().y(), last().x() - first().x(), last().y() - first().y() ); + rect = rect.normalize(); + view()->setViewportRect( rect ); +} + +bool +VZoomTool::keyReleased( Qt::Key key ) +{ + double zoomChange = 0; + if( key == Qt::Key_Minus ) + zoomChange = 0.75; + else if( key == Qt::Key_Plus ) + zoomChange = 1.50; + + if( zoomChange != 0 ) + { + view()->setZoomAt( view()->zoom() * zoomChange ); + return true; + } + return false; +} + +void +VZoomTool::recalc() +{ + m_current = last(); +} + +void +VZoomTool::setup( KActionCollection *collection ) +{ + m_action = static_cast<KRadioAction *>(collection -> action( name() ) ); + + if( m_action == 0 ) + { + m_action = new KRadioAction( i18n( "Zoom Tool" ), "14_zoom", Qt::SHIFT+Qt::Key_H, this, SLOT( activate() ), collection, name() ); + m_action->setToolTip( i18n( "Zoom" ) ); + m_action->setExclusiveGroup( "misc" ); + //m_ownAction = true; + } +} + |