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Diffstat (limited to 'karbon/commands/vdistributecmd.cpp')
| -rw-r--r-- | karbon/commands/vdistributecmd.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/karbon/commands/vdistributecmd.cpp b/karbon/commands/vdistributecmd.cpp new file mode 100644 index 00000000..7a23072f --- /dev/null +++ b/karbon/commands/vdistributecmd.cpp @@ -0,0 +1,198 @@ +/* This file is doc of the KDE project + Copyright (C) 2005 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 <tdelocale.h> + +#include "vdistributecmd.h" +#include "vtransformcmd.h" +#include "vdocument.h" +#include "vselection.h" + +VDistributeCmd::VDistributeCmd( VDocument *doc, Distribute distribute ) + : VCommand( doc, i18n( "Distribute Objects" ) ), m_distribute( distribute ) +{ + m_trafoCmds.setAutoDelete( true ); +} + +VDistributeCmd::~VDistributeCmd() +{ +} + +void +VDistributeCmd::execute() +{ + if( document()->selection()->objects().count() <= 2 ) + return; + + KoRect bbox; + double extent = 0.0; + double dx, dy; + + VObjectList objs = document()->selection()->objects(); + VObjectListIterator itr( objs ); + + TQMap<double,VObject*> sortedPos; + + // sort by position and calculate sum of objects widht/height + for( ; itr.current(); ++itr ) + { + bbox = itr.current()->boundingBox(); + switch( m_distribute ) + { + case DISTRIBUTE_HORIZONTAL_CENTER: + sortedPos[bbox.center().x()] = itr.current(); + break; + case DISTRIBUTE_HORIZONTAL_GAP: + case DISTRIBUTE_HORIZONTAL_LEFT: + sortedPos[bbox.left()] = itr.current(); + extent += bbox.width(); + break; + case DISTRIBUTE_HORIZONTAL_RIGHT: + sortedPos[bbox.right()] = itr.current(); + break; + case DISTRIBUTE_VERTICAL_CENTER: + sortedPos[bbox.center().y()] = itr.current(); + break; + case DISTRIBUTE_VERTICAL_GAP: + case DISTRIBUTE_VERTICAL_BOTTOM: + sortedPos[bbox.bottom()] = itr.current(); + extent += bbox.height(); + break; + case DISTRIBUTE_VERTICAL_TOP: + sortedPos[bbox.top()] = itr.current(); + break; + } + } + + VObject* first = sortedPos.begin().data(); + VObject* last = (--sortedPos.end()).data(); + + // determine the available space to distribute + double space = getAvailableSpace( first, last, extent ); + double pos = 0.0, step = space / double(objs.count() - 1); + + VTranslateCmd *trafoCmd = 0L; + TQMapIterator<double,VObject*> it = sortedPos.begin(), et = sortedPos.end(); + + for( ; it != et; ++it ) + { + if( it.data() == first || it.data() == last ) + continue; + + pos += step; + + document()->selection()->clear(); + + bbox = it.data()->boundingBox(); + + switch( m_distribute ) + { + case DISTRIBUTE_HORIZONTAL_CENTER: + dx = first->boundingBox().center().x() + pos - bbox.center().x(); + dy = 0.0; + break; + case DISTRIBUTE_HORIZONTAL_GAP: + dx = first->boundingBox().right() + pos + 0.5 * bbox.width() - bbox.center().x(); + dy = 0.0; + pos += bbox.width(); + break; + case DISTRIBUTE_HORIZONTAL_LEFT: + dx = first->boundingBox().left() + pos - bbox.left(); + dy = 0.0; + break; + case DISTRIBUTE_HORIZONTAL_RIGHT: + dx = first->boundingBox().right() + pos - bbox.right(); + dy = 0.0; + break; + case DISTRIBUTE_VERTICAL_CENTER: + dx = 0.0; + dy = first->boundingBox().center().y() + pos - bbox.center().y(); + break; + case DISTRIBUTE_VERTICAL_GAP: + dx = 0.0; + dy = first->boundingBox().bottom() + pos + 0.5 * bbox.height() - bbox.center().y(); + pos += bbox.height(); + break; + case DISTRIBUTE_VERTICAL_BOTTOM: + dx = 0.0; + dy = first->boundingBox().bottom() + pos - bbox.bottom(); + break; + case DISTRIBUTE_VERTICAL_TOP: + dx = 0.0; + dy = first->boundingBox().top() + pos - bbox.top(); + break; + }; + document()->selection()->append( it.data() ); + trafoCmd = new VTranslateCmd( document(), dx, dy ); + m_trafoCmds.append( trafoCmd ); + trafoCmd->execute(); + } + + // re-add object to selection + itr.toFirst(); + for( ; itr.current() ; ++itr ) + document()->selection()->append( itr.current() ); + setSuccess( true ); +} + +void +VDistributeCmd::unexecute() +{ + TQPtrListIterator<VTranslateCmd> itr( m_trafoCmds ); + for( ; itr.current() ; ++itr ) + itr.current()->unexecute(); + setSuccess( false ); +} + +double +VDistributeCmd::getAvailableSpace( VObject *first, VObject *last, double extent ) +{ + switch( m_distribute ) + { + case DISTRIBUTE_HORIZONTAL_CENTER: + return last->boundingBox().center().x() - first->boundingBox().center().x(); + break; + case DISTRIBUTE_HORIZONTAL_GAP: + extent -= first->boundingBox().width() + last->boundingBox().width(); + return last->boundingBox().left() - first->boundingBox().right() - extent; + break; + case DISTRIBUTE_HORIZONTAL_LEFT: + return last->boundingBox().left() - first->boundingBox().left(); + break; + case DISTRIBUTE_HORIZONTAL_RIGHT: + return last->boundingBox().right() - first->boundingBox().right(); + break; + case DISTRIBUTE_VERTICAL_CENTER: + return last->boundingBox().center().y() - first->boundingBox().center().y(); + break; + case DISTRIBUTE_VERTICAL_GAP: + extent -= first->boundingBox().height() + last->boundingBox().height(); + return last->boundingBox().top() - first->boundingBox().bottom() - extent; + break; + case DISTRIBUTE_VERTICAL_BOTTOM: + return last->boundingBox().bottom() - first->boundingBox().bottom(); + break; + case DISTRIBUTE_VERTICAL_TOP: + return last->boundingBox().top() - first->boundingBox().top(); + break; + } + + return 0.0; +} |