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Diffstat (limited to 'karbon/tools/vshapetool.cpp')
| -rw-r--r-- | karbon/tools/vshapetool.cpp | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/karbon/tools/vshapetool.cpp b/karbon/tools/vshapetool.cpp new file mode 100644 index 00000000..9b59104d --- /dev/null +++ b/karbon/tools/vshapetool.cpp @@ -0,0 +1,274 @@ +/* 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 <tqcursor.h> +#include <tqevent.h> +#include <tqlabel.h> + +#include "karbon_part.h" +#include "karbon_view.h" +#include "vcanvas.h" +#include "vcomposite.h" +#include "vglobal.h" +#include "vpainter.h" +#include "vpainterfactory.h" +#include "vshapecmd.h" +#include "vshapetool.h" +#include "vselection.h" +#include "vcursor.h" + +VShapeTool::VShapeTool( KarbonView *view, const char *name, bool polar ) + : VTool( view, name ) +{ + m_cursor = new TQCursor( VCursor::createCursor( VCursor::CrossHair ) ); + + m_isPolar = polar; + m_isSquare = false; + m_isCentered = false; +} + +VShapeTool::~VShapeTool() +{ + delete m_cursor; +} + +TQString +VShapeTool::contextHelp() +{ + TQString s = i18n( "<qt><b>Shape tool</b><br>" ); + s += i18n( "<i>Click and drag</i> to place your own shape.<br>" ); + s += i18n( "<i>Click</i> to place a shape using the tool properties values.</qt>" ); + return s; +} + +void +VShapeTool::activate() +{ + VTool::activate(); + view()->setCursor( *m_cursor ); + view()->part()->document().selection()->showHandle( true ); +} + +TQString +VShapeTool::statusText() +{ + return uiname(); +} + +void +VShapeTool::draw() +{ + VPainter* painter = view()->painterFactory()->editpainter(); + painter->setRasterOp( TQt::NotROP ); + + VPath* composite = shape(); + composite->setState( VPath::edit ); + composite->draw( painter, &composite->boundingBox() ); + delete( composite ); +} + +void +VShapeTool::mouseButtonPress() +{ + recalc(); + + // Draw new object: + draw(); +} + +void +VShapeTool::mouseButtonRelease() +{ + draw(); + + recalc(); + + if( showDialog() ) + { + VPath* composite = shape( true ); + + if( composite ) + { + VShapeCmd* cmd = new VShapeCmd( + &view()->part()->document(), + uiname(), composite, icon() ); + + view()->part()->addCommand( cmd, true ); + } + } + + m_isSquare = false; + m_isCentered = false; +} + +void +VShapeTool::mouseDrag() +{ + // Erase old object: + draw(); + + recalc(); + + // Draw new object: + draw(); +} + +void +VShapeTool::mouseDragRelease() +{ + //recalc(); + + VShapeCmd* cmd = new VShapeCmd( + &view()->part()->document(), + uiname(), shape(), icon() ); + + view()->part()->addCommand( cmd, true ); + + m_isSquare = false; + m_isCentered = false; +} + +void +VShapeTool::mouseDragShiftPressed() +{ + // Erase old object: + draw(); + + m_isSquare = true; + recalc(); + + // Draw new object: + draw(); +} + +void +VShapeTool::mouseDragCtrlPressed() +{ + // Erase old object: + draw(); + + m_isCentered = true; + recalc(); + + // Draw new object: + draw(); +} + +void +VShapeTool::mouseDragShiftReleased() +{ + // Erase old object: + draw(); + + m_isSquare = false; + recalc(); + + // Draw new object: + draw(); +} + +void +VShapeTool::mouseDragCtrlReleased() +{ + // Erase old object: + draw(); + + m_isCentered = false; + recalc(); + + // Draw new object: + draw(); +} + +void +VShapeTool::cancel() +{ + // Erase old object: + if ( isDragging() ) + { + draw(); + m_isSquare = false; + m_isCentered = false; + } +} + +void +VShapeTool::recalc() +{ + m_isSquare = shiftPressed(); + m_isCentered = ctrlPressed(); + + KoPoint _first = view()->canvasWidget()->snapToGrid( first() ); + KoPoint _last = view()->canvasWidget()->snapToGrid( last() ); + + // Calculate radius and angle: + if( m_isPolar ) + { + // Radius: + m_d1 = sqrt( + ( _last.x() - _first.x() ) * ( _last.x() - _first.x() ) + + ( _last.y() - _first.y() ) * ( _last.y() - _first.y() ) ); + + // Angle: + m_d2 = atan2( _last.y() - _first.y(), _last.x() - _first.x() ); + + // Define pi/2 as "0.0": + m_d2 -= VGlobal::pi_2; + + m_p = _first; + } + else + // Calculate width and height: + { + m_d1 = _last.x() - _first.x(); + m_d2 = _last.y() - _first.y(); + + const int m_sign1 = VGlobal::sign( m_d1 ); +// TODO: revert when we introduce y-mirroring: + const int m_sign2 = VGlobal::sign( -m_d2 ); + + // Make unsigned: + if( m_d1 < 0.0 ) + m_d1 = -m_d1; + + if( m_d2 < 0.0 ) + m_d2 = -m_d2; + + if ( m_isSquare ) + { + if ( m_d1 > m_d2 ) + m_d2 = m_d1; + else + m_d1 = m_d2; + } + + m_p.setX( + _first.x() - ( m_sign1 == -1 ? m_d1 : 0.0 ) ); +// TODO: revert when we introduce y-mirroring: + m_p.setY( + _first.y() + ( m_sign2 == -1 ? m_d2 : 0.0 ) ); + + if ( m_isCentered ) + { + m_p.setX( m_p.x() - m_sign1 * tqRound( m_d1 * 0.5 ) ); + m_p.setY( m_p.y() + m_sign2 * tqRound( m_d2 * 0.5 ) ); + } + } +} + |