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367 lines
8.2 KiB
367 lines
8.2 KiB
/* This file is part of the KDE project
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Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
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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 <KoChild.h>
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#include <tqpainter.h>
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#include <kdebug.h>
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class KoChild::KoChildPrivate
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{
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public:
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KoChildPrivate()
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{
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m_contentsX = m_contentsY = 0;
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}
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~KoChildPrivate()
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{
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}
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TQRect m_tqgeometry;
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double m_rotation;
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double m_shearX;
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double m_shearY;
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TQPoint m_rotationPoint;
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double m_scaleX;
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double m_scaleY;
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TQWMatrix m_matrix;
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bool m_lock;
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TQPointArray m_old;
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bool m_transparent;
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int m_contentsX;
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int m_contentsY;
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};
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KoChild::KoChild( TQObject *tqparent, const char *name )
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: TQObject( tqparent, name )
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{
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d = new KoChildPrivate;
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d->m_scaleX = d->m_scaleY = 1.0;
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d->m_shearX = d->m_shearY = 0.0;
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d->m_rotation = 0.0;
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d->m_lock = false;
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d->m_transparent = false;
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updateMatrix();
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}
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KoChild::~KoChild()
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{
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delete d;
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}
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void KoChild::setGeometry( const TQRect &rect, bool noEmit )
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{
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if ( !d->m_lock )
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d->m_old = framePointArray();
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d->m_tqgeometry = rect;
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// Embedded objects should have a minimum size of 3, so they can be selected
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if( d->m_tqgeometry.width() < 3 )
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d->m_tqgeometry.setWidth( 3 );
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if( d->m_tqgeometry.height() < 3 )
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d->m_tqgeometry.setHeight( 3 );
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updateMatrix();
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if ( !d->m_lock && !noEmit )
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emit changed( this );
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}
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TQRect KoChild::tqgeometry() const
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{
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return d->m_tqgeometry;
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}
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TQRegion KoChild::region( const TQWMatrix &matrix ) const
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{
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return TQRegion( pointArray( matrix ) );
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}
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TQPointArray KoChild::pointArray( const TQWMatrix &matrix ) const
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{
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return pointArray( TQRect( 0, 0, d->m_tqgeometry.width(), d->m_tqgeometry.height() ), matrix );
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}
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//bool KoChild::tqcontains( const TQPoint &point ) const
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//{
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// return region().tqcontains( point );
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//}
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TQRect KoChild::boundingRect() const
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{
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return pointArray().boundingRect();
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}
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bool KoChild::isRectangle() const
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{
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return !( d->m_shearX != 0.0 || d->m_shearY != 0.0 || d->m_rotation != 0.0 );
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}
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void KoChild::setClipRegion( TQPainter &painter, bool combine )
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{
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painter.setClipping( true );
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if ( combine && !painter.clipRegion().isEmpty() )
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painter.setClipRegion( region( painter.tqworldMatrix() ).intersect( painter.clipRegion() ) );
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else
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painter.setClipRegion( region( painter.tqworldMatrix() ) );
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}
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void KoChild::setScaling( double x, double y )
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{
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if ( !d->m_lock )
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d->m_old = framePointArray();
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d->m_scaleX = x;
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d->m_scaleY = y;
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// why is that commented out? (Simon)
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// This is commented out, because KoChild::transform() scales
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// the world matrix explicitly and updateMatrix() doesn't even
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// handle scaling (Werner)
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//updateMatrix()
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if ( !d->m_lock )
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emit changed( this );
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}
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double KoChild::xScaling() const
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{
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return d->m_scaleX;
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}
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double KoChild::yScaling() const
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{
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return d->m_scaleY;
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}
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void KoChild::setShearing( double x, double y )
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{
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if ( !d->m_lock )
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d->m_old = framePointArray();
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d->m_shearX = x;
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d->m_shearY = y;
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updateMatrix();
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if ( !d->m_lock )
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emit changed( this );
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}
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double KoChild::xShearing() const
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{
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return d->m_shearX;
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}
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double KoChild::yShearing() const
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{
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return d->m_shearY;
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}
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void KoChild::setRotation( double rot )
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{
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if ( !d->m_lock )
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d->m_old = framePointArray();
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d->m_rotation = rot;
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updateMatrix();
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if ( !d->m_lock )
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emit changed( this );
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}
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double KoChild::rotation() const
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{
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return d->m_rotation;
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}
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void KoChild::setRotationPoint( const TQPoint &pos )
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{
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if ( !d->m_lock )
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d->m_old = framePointArray();
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d->m_rotationPoint = pos;
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updateMatrix();
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if ( !d->m_lock )
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emit changed( this );
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}
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TQPoint KoChild::rotationPoint() const
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{
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return d->m_rotationPoint;
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}
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void KoChild::transform( TQPainter &painter )
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{
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setClipRegion( painter, true );
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TQWMatrix m = painter.tqworldMatrix();
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m = d->m_matrix * m;
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m.scale( d->m_scaleX, d->m_scaleY );
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painter.setWorldMatrix( m );
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}
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void KoChild::setContentsPos( int x, int y )
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{
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d->m_contentsX = x;
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d->m_contentsY = y;
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}
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TQRect KoChild::contentRect() const
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{
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return TQRect( d->m_contentsX, d->m_contentsY, int(d->m_tqgeometry.width() / d->m_scaleX),
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int(d->m_tqgeometry.height() / d->m_scaleY) );
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}
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TQPointArray KoChild::framePointArray( const TQWMatrix &matrix ) const
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{
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return pointArray( TQRect( -6, -6, d->m_tqgeometry.width() + 12, d->m_tqgeometry.height() + 12 ), matrix );
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}
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TQRegion KoChild::frameRegion( const TQWMatrix &matrix, bool solid ) const
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{
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const TQPointArray arr = framePointArray( matrix );
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const TQRegion frameReg( arr );
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if ( solid )
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return frameReg;
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const TQRegion reg = region( matrix );
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return frameReg.subtract( reg );
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}
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TQPointArray KoChild::pointArray( const TQRect &r, const TQWMatrix &matrix ) const
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{
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TQPoint topleft = d->m_matrix.map( TQPoint( r.left(), r.top() ) );
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TQPoint topright = d->m_matrix.map( TQPoint( r.right(), r.top() ) );
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TQPoint bottomleft = d->m_matrix.map( TQPoint( r.left(), r.bottom() ) );
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TQPoint bottomright = d->m_matrix.map( TQPoint( r.right(), r.bottom() ) );
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TQPointArray arr( 4 );
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arr.setPoint( 0, topleft );
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arr.setPoint( 1, topright );
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arr.setPoint( 2, bottomright );
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arr.setPoint( 3, bottomleft );
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for( int i = 0; i < 4; ++i )
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arr.setPoint( i, matrix.map( arr.point( i ) ) );
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return arr;
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}
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void KoChild::updateMatrix()
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{
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TQWMatrix r;
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r.rotate( - d->m_rotation );
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TQPoint p = r.map( TQPoint( d->m_rotationPoint.x(),
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d->m_rotationPoint.y() ) );
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TQWMatrix m;
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m.rotate( d->m_rotation );
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m.translate( -d->m_rotationPoint.x() + d->m_tqgeometry.x(), -d->m_rotationPoint.y() + d->m_tqgeometry.y() );
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m.translate( p.x(), p.y() );
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m.shear( d->m_shearX, d->m_shearY );
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d->m_matrix = m;
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}
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TQWMatrix KoChild::matrix() const
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{
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return d->m_matrix;
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}
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void KoChild::lock()
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{
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if ( d->m_lock )
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return;
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d->m_old = framePointArray();
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d->m_lock = true;
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}
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void KoChild::unlock()
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{
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if ( !d->m_lock )
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return;
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d->m_lock = false;
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emit changed( this );
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}
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bool KoChild::locked() const
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{
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return d->m_lock;
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}
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TQPointArray KoChild::oldPointArray( const TQWMatrix &matrix )
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{
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TQPointArray arr = d->m_old;
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for( int i = 0; i < 4; ++i )
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arr.setPoint( i, matrix.map( arr.point( i ) ) );
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return arr;
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}
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void KoChild::setTransparent( bool transparent )
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{
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d->m_transparent = transparent;
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}
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bool KoChild::isTransparent() const
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{
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return d->m_transparent;
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}
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KoChild::Gadget KoChild::gadgetHitTest( const TQPoint &p )
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{
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if ( !frameRegion().tqcontains( p ) )
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return NoGadget;
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if ( TQRegion( pointArray( TQRect( -5, -5, 5, 5 ) ) ).tqcontains( p ) )
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return TopLeft;
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if ( TQRegion( pointArray( TQRect( d->m_tqgeometry.width() / 2 - 3, -5, 5, 5 ) ) ).tqcontains( p ) )
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return TopMid;
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if ( TQRegion( pointArray( TQRect( d->m_tqgeometry.width(), -5, 5, 5 ) ) ).tqcontains( p ) )
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return TopRight;
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if ( TQRegion( pointArray( TQRect( -5, d->m_tqgeometry.height() / 2 - 3, 5, 5 ) ) ).tqcontains( p ) )
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return MidLeft;
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if ( TQRegion( pointArray( TQRect( -5, d->m_tqgeometry.height(), 5, 5 ) ) ).tqcontains( p ) )
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return BottomLeft;
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if ( TQRegion( pointArray( TQRect( d->m_tqgeometry.width() / 2 - 3,
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d->m_tqgeometry.height(), 5, 5 ) ) ).tqcontains( p ) )
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return BottomMid;
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if ( TQRegion( pointArray( TQRect( d->m_tqgeometry.width(), d->m_tqgeometry.height(), 5, 5 ) ) ).tqcontains( p ) )
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return BottomRight;
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if ( TQRegion( pointArray( TQRect( d->m_tqgeometry.width(),
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d->m_tqgeometry.height() / 2 - 3, 5, 5 ) ) ).tqcontains( p ) )
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return MidRight;
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return Move;
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}
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#include <KoChild.moc>
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